Entries |
Document | Title | Date |
20080312700 | Bioabsorbable Screw - The invention provides a bioabsorbable screw ( | 12-18-2008 |
20090012572 | Cannular Bolt - A cannular bolt that is used to inject a bone marrow paste into a vertebra, to stabilize vertebrae and has a body and a set screw. The body is screwed into the vertebra and has an outer end, an external thread, a coaxial channel and a crown bracket. The crown bracket is mounted around a shaft and is formed on the outer end of the body, and has two wings protruding from the outer end of the body, corresponding to each other and having an inner thread. The set screw is mounted in the bracket to fasten the shaft to the crown bracket. The crown bracket takes less space than the bracket of a conventional cannular bolt and is not easily obstructed by the spinous processes of vertebrae. | 01-08-2009 |
20090082818 | Canulated titanium implant for correcting flat feet in children - It is possible to satisfy all the requirements of minimal invasiveness with maximal permanent result by placing the invented implants (screw). The shape of the screw solves all mentioned technical problems that occurred thus far, i.e. it can be directed through a small gap in the skin by Kirschner's guide-wire (because the screw is hollow-canulated). The screw is larger in body, so a much greater force is needed for it to break. If it does break, it can be removed easier with less lesions to the surrounding bone tissue. At the point of the screw are trisect cuts (on the apex thread) which also make the lesion of the bone lesser as is as it is inserted in its position. Since the head of the screw is bigger and conical, without a narrow part leading to the screw-thread, the screw self-tightens into the bone, which makes the loosening rarer. The loosening is also rarer because of the shape of the screw-thread. The screw has the equal effect throughout the whole time it is implanted in the body. The osteolysis of the heel bone in which the screw stems against is also reduced. The conical shape of the head of the screw, without a narrow part (neck) between the head and the screw-thread, it does not allow ingrowing of the bone tissue, so it can be easily removed when the necessary time of correction is finished. The time necessary for the surgical procedure is significantly shorter, taking up 15 minutes, thus reducing the possibility of a infection, which is also helped by a small operative area. After the placement of the screw, the patient can walk two days after the surgery and he/she does not need any plaster immobilization or physical therapy. The screw is made out of titanium alloy, which gives it a certain toughness; the patient can undergo magnetic examinations, if there is need for such, while the screw is implanted. | 03-26-2009 |
20090198289 | Fortified cannulated screw - A cannulated screw is provided having internal threads in a lumen to accommodate a fortifying screw. The fortifying screw is screwed into the threads in the lumen of the cannulated screw after the cannulated screw has been accurately placed in the bone by following a guide pin or guide wire to the desired location is as is commonly done with cannulated screws. The fortifying screw fortifies the cannulated screw and gives it strength approximately equal to that of a solid screw. | 08-06-2009 |
20090281580 | BONE SCREW - The cavity of a screw body presents a portion with an enlarged cross-section forming a chamber, positioned such that it is set back from the proximal surface of said head, over a sufficient distance so that first slots and first expandable portions which define these first slots constitute a gripping element to drive the screw in rotation. The expansion rod comprises a proximal head equipped with gripping element to drive it in rotation, intended to be found in the chamber in the non-expanded position of the screw head: The cavity has a first portion with a limited cross-section located at the expandable portions, this limited cross-section portion being intended to cooperate with the head to achieve expansion of the expandable portions while also defining a passageway having a cross-section sufficient to allow access, from the outside of the screw, to the gripping means comprised by the expansion rod. | 11-12-2009 |
20090281581 | Method and device for securing sutures to bones - A method, system and device for securing a repair, such as a rotator cuff repair and includes an anchor placed within a hole formed in bone and a cannulated screw inserted into the hole after the anchor has been inserted to effectuate a firm and secure connection of tissue to bone, particularly when the quality of the bone does not permit optimal fixation. The method, system and device allows superior tissue fixation to bone with the ease of knotless suture anchor application. | 11-12-2009 |
20090287259 | Arthroscopic Biceps Tenodesis Repair - The present disclosure relates to a fixation device. The fixation device includes a base portion having a first leg, a second leg, and a groove located between the first and second legs, and a top portion extending from the base portion. A method of tissue repair and a kit are also disclosed. | 11-19-2009 |
20090312802 | SYSTEM FOR MAKING A BONE REPAIR - A method and system is provided for repairing bone fractures at locations where high levels of stability are required. The system employs two plates to buttress a fracture from both the dorsal and volar sides. The plates are affixed to one another using screws that are installed from a volar plate, through the bone and into a dorsal plate. The method provides for use of a directional guide that allows the precise placement of Kirschner wires for temporary fixation of the fracture, installation of a first bone fixation plate using the installed K-wires for alignment, installation of a second bone plate adjacent the bone to be repaired and opposite the first bone plate, and installation of cannulated fasteners between the two opposing bone plates such that the fasteners rigidly engage both of the bone plates. | 12-17-2009 |
20100016904 | Upload shank swivel head bone screw spinal implant - A polyaxial bone screw having a bone implantable shank, a head and a retaining ring. The retaining ring includes an outer partial hemispherical surface and an inner bore with radially extending channels and partial capture recesses. The shank includes a bone implantable body with an external helical wound thread and an upwardly extending capture structure. The capture structure includes at least one spline which extends radially outward and has a wedged surface that faces radially outward therefrom. The capture structure operably passes through a central bore of the retaining ring while the spline passes through a suitably shaped channel so that the spline becomes positioned above the head at which time the shank is rotated appropriately and the shank is drawn back downwardly so that the spline engages and seats in the capture recess. The head includes an internal cavity having a spherical shaped surface that mates with the ring surface and has a lower restrictive neck that prevents passage of the ring once the ring is seated in the cavity. | 01-21-2010 |
20100042164 | Expansion screw set and hollow nail and interior nail thereof - The invention provides an expansion screw set, a hollow nail and an interior nail. The expansion screw set is composed of the hollow nail and the interior nail. The hollow nail has a hollow structure. A first thread and a second thread are provided for the inside and the outside of the hollow nail. The interior nail has a third thread. The hollow nail could nail an object through the first thread. The third thread of the interior nail corresponds to the second thread of the hollow nail. Therefore, the interior nail can be fastened into the hollow structure after the interior nail is nailed into the hollow nail. Moreover, the hollow nail has a separation line which runs parallel to the penetration direction of the hollow structure. Alternatively, the hollow nail has a plurality of penetration holes which is vertical to the penetration direction of the hollow structure. After the interior nail is nailed into the hollow structure, the separation line can be stretched out through the interior nail. Alternatively, contents within the hollow structure are squeezed to the outside from the penetration holes through the interior nail. | 02-18-2010 |
20100076499 | CANNULATED ANCHOR AND SYSTEM - Cannulated anchors are provided that may be optimally forced in, press fit, screwed in or otherwise installed into tissue with minimal damage to the flexible members or sutures attached thereto. Systems for installing at least one flexible member into tissue include the cannulated anchor, the at least one flexible member capable of being received by the cannulated anchor; and an installer with a driver head insertable into the cannulation of the anchor proximate the trailing end and with an essentially longitudinal cannulation centrally disposed along the axis and sized to accept a guidewire therethrough. Movement of the installer about the longitudinal axis causes corresponding movement of the cannulated anchor such that the outer surface of the cannulated anchor is capable of effecting anchoring into the tissue. | 03-25-2010 |
20100094355 | VARIABLE TENSION POST FIXATION - A variable tension post fixation device includes an outer screw including a head configured to receive a driver, a conical tip, a threaded shaft extending between the head and the tip, and an incompletely cannulated core, and an inner screw including a proximal end, a distal end, and at least one suture hole, wherein the inner screw is configured to be insertably coupled with the outer screw. | 04-15-2010 |
20100094356 | INTERLOCKING BONE SCREW AND WASHER CONCEPTS - The present disclosure provides a cannulated bone screw system including a screw with a threaded portion, a non-threaded portion, and a first plurality of teeth spaced apart from a screw head; and a washer with an interior portion with a second plurality of teeth and an opening and an outer portion with a plurality of spikes. The first plurality of teeth are on an inferior convex surface; wherein the second plurality of teeth are on a superior concave surface; and wherein the first plurality of teeth and the second plurality of teeth are operable to mate to prevent the screw from backing out of the washer while allowing the cannulated bone screw system to conform/pivot in order to accommodate different bone morphologies. | 04-15-2010 |
20100106199 | VENTING/PRESSURE ADJUSTMENT TO AID IN DELIVERY OF MATERIAL INTO AN ANATOMIC REGION VIA A CANNULA - A cannulated and possibly fenestrated device for injection of material into bone can be dangerous because large, uncontrolled pressures are introduced during injection into a somewhat closed system, and material may extrude undesirably or emboli may be introduced. Methods and devices are described for providing venting of pressure upon injection of material through cannulated and possibly fenestrated screws. The first method involves a bone screw and/or anchor device that includes multiple channels to allow material to flow in through one channel and out through another channel. The second method involves a plunger that can force material into bone if advanced or lessen pressure if withdrawn. The third method involves usage of two separate screws. Material is alternately injected or withdrawn from each screw to cause material to flow from one screw to the other in a controlled way that creates a uniform or asymmetrical distribution of material as desired. | 04-29-2010 |
20100131016 | LESS INVASIVE SURGICAL SYSTEM AND METHODS - A system for performing a less invasive surgical procedure and, in particular, devices and methods for spinal fixation. The system comprises dilation tool(s), at least one working/insertion cannula, a plurality of screws, at least one fixation rod for connecting the screws, and a rod inserter. The dilation tool(s) may be used to dilate an incision made in a patient to form an opening. Thereafter, a drill may be used to form holes in the vertebrae. An insertion cannula may be attached to a screw and inserted into the opening. The screws may be polyaxial screws and may be inserted into the vertebrae using a screwdriver. An operator may then move the insertion cannula to manipulate a head portions of the screws such that the head portions may be aligned to receive a fixation rod. A rod inserter may be used to insert a fixation rod into the head portions. After the fixation rod is in place, it may be locked to the screws, thereby fixing the system in place on the spine. | 05-27-2010 |
20100145395 | Tissue Repair Assembly - The present disclosure relates to a tissue repair assembly. The assembly includes an interference device and a fixation device coupled to the interference device, wherein the fixation device includes a coupling portion and a capturing portion. Other assemblies and methods are also disclosed. | 06-10-2010 |
20100174323 | SELF-BORING AND SELF-TAPPING SCREW FOR OSTEOSYNTHESIS AND COMPRESSION - The invention provides an osteosynthesis and compression screw that is self-boring and self-tapping for the purpose of coaptation of small bone fragments. The screw comprises: | 07-08-2010 |
20100185245 | Devices and Methods for Treating Vertebral Fractures - The present application is directed to devices and methods for treating vertebral fractures with one or more bone pins. In one embodiment of a method, a fractured vertebral body may be accessed through a pedicle portion and an opening may be created therethrough. One or more bone pins may be inserted through the opening. In one embodiment, at least one of the inserted bone pins is inserted to extend across a fracture zone with a proximal portion of the pin engaging a first bone segment and a distal portion engaging a second bone segment. The pin or pins may be manipulated to immobilize the first and second portions of the fractured vertebra. | 07-22-2010 |
20100298887 | Cannulated surgical screw bone filler adapter - An adapter attached between a dispenser containing a bone void filler and the head of a cannulated surgical screw allows the cannulated surgical screw to be used as a port to inject bone void filler into a bone void during the course of a surgical repair which would use a surgical screw to attach broken or separated bone fragments providing a more secure bone anchor matrix within which the surgical screw is set. | 11-25-2010 |
20100298888 | Tissue Repair Assembly - The present disclosure relates to a fixation device. The fixation device includes a base portion including a first leg, a second leg, and a groove located between the first and second legs and a top portion extending from the base portion. A tissue repair device and a method of tissue repair are also disclosed. | 11-25-2010 |
20100331895 | OSTEOSYNTHETIC DEVICE - The osteosynthetic device for the fixation of a bone or bone fragments has a longitudinal axis ( | 12-30-2010 |
20110060373 | BONE SCREWS AND METHODS OF USE THEREOF - The invention features bone screws having a threaded screw body and a screw head attached to one end of the screw body, the bone screw further including: a) an interior channel extending longitudinally through the screw head and through at least a portion of the screw body, wherein the interior channel has a width of less than 5.0 millimeters; and b) a plurality of radially-disposed delivery channels connecting the interior channel to the exterior of the screw body, each delivery channel having exterior openings. The invention further features devices that include a bone screw and a delivery manifold detachably attached to the screw head of the bone screw. In addition, the invention features methods of treating a patient having a bone defect by using a bone screw described herein. | 03-10-2011 |
20110077692 | Dynamic spinal stabilization assemblies, tool set and method - A hinged bone screw and tool set is used for implanting such bone screws in a human spine, followed by the implantation of a longitudinal connecting member into the bone screws. The hinged bone screw includes a shank with an upper portion and a receiver with integral arms forming a U-shaped channel. A lower curved seat partially defining the U-shaped channel cooperates with an upper portion of the bone screw shank for hinged movement of the shank with respect to the receiver. The tool set includes an insertion tool, a bone screw driver, a reduction tool and a closure starter. The insertion tool includes a bone screw attachment structure and a laterally opening channel. The insertion tool further includes a threaded portion for cooperation with the reduction tool to provide synchronized placement of a closure structure in the bone screw receiver while reducing and capturing a longitudinal connecting member within the receiver. Further alternative bone screws are hinged, polyaxial or fixed and include lordosing or kyphosing lateral surfaces. | 03-31-2011 |
20110093020 | Poly-porous hollow screw for target delivery of growth factors and stem cells:the design and potential clinical application - Present invention depicts a poly-porous (micropore) hollow screws as diffusion chamber filled with core matrix for targeted delivery of growth factors and bone marrow stem cells. The screws comprise at least two parts: the distal part of the screw consists of the tip of the screw made of poly porous material and hollow inside proximally. It has threaded navel attached to the threaded nipple of the distal part of the proximal screw which has the screw head and is made of the solid material of the same kind. The screw head had hexagonal recess targeted for screw driver insertion. Assembly of screw created a chamber in the middle of the screw. The chamber is filled with core matrix consisting of gelatin nano-particles pre-impregnated with BMPs (BMP2/BMP7 for bone or BMP12 for tendon, ligament) and fibrin sealants or Chitosan dispersed with bone marrow stem cells and/or other growth factors. Bioactive protein core material is prepared during the surgery and filled the chamber of the screw by the surgeon. Fibrin sealants or Chitosan will polymerize to form a gel to hold the growth factors and stem cell in place. The screw can be used as the lag screw or other function to provide mechanical fixation in variety of condition. Once the screw implanted in the human body, the fibrin sealant or Chitosin/gelatin nano-particles are gradually degraded and slowly release growth factors and stem cells via micropores of screw to facilitate the bone healing and regeneration. The gelatin nanoparticles and fibril sealant/or Chitosan matrix also serve as the scaffold and platform for bone in-growth to the screw or alternatively, the stem cell inside of screw can regenerate new bone, providing the biological fixation. At the mean time as the bone regenerate and/or in growth, mechanical strength of the screw increased. | 04-21-2011 |
20110184472 | Expandable Bone Support - A bone fixation device comprises a rod extending from a proximal end located external to the body in an operative configuration to a distal end comprising an increased diameter tip sized and shaped to be received in a subchondral layer in the operative configuration and a first bushing slidably received over the rod, a distal portion of the first bushing comprising a plurality of arms separable from one another to spread radially outward from the rod as the first bushing is moved distally over the tip of the rod in combination with a cannulated element slidably received over the rod, the cannulated element sized and shaped to engage a proximal end of the first bushing, a portion thereof located external to the bone in the operative configuration so that a distally directed force applied thereto moves the first bushing distally over the rod spreading the arms radially outward. | 07-28-2011 |
20110213423 | BONE SCREW - A bone screw is provided that includes a tubular body having a first end and a closed second end. The tubular body has a tubular wall defining a cavity wherein the thickness of the wall in a radial direction is smaller than an inner radius of the cavity and wherein a plurality of recesses is provided extending entirely through the tubular wall into the cavity. The tubular body further includes an exterior bone thread on an exterior tubular surface portion of the tubular wall, a head at the first end configured to engage with a driver to advance the bone screw in the bone, and a tip at the second end. The tubular body, the head and the tip are formed as a single piece. | 09-01-2011 |
20110245881 | Fluid delivery and bone screw driver apparatus - A fluid delivery and bone screw driver apparatus attaches to a bone screw. An inner sleeve joins a material delivery source connected to one end of the inner sleeve to the bone screw connected to the other end. A removable liner communicates the material through the inner sleeve and into the bone screw. An outer sleeve seals the outer sleeve to the head of the bone screw. Rotating the outer sleeve tightens the seal and rotates the bone screw. | 10-06-2011 |
20110282397 | Ankle Fusion Device, Instrumentation and Methods - An ankle fusion device has a proximal portion generally aligned with a first longitudinal axis. The proximal portion includes a proximal end and a first fastener hole. The proximal portion has an arcuate curve such that the proximal end is spaced a distance from the first longitudinal axis in a first direction. The first fastener hole is configured to receive a first fastener along a first fastener axis. A distal portion of the ankle fusion device extends to a distal end from the proximal portion along a second longitudinal axis. The second longitudinal axis is angled in second and third directions relative to the first longitudinal axis. The second direction is perpendicular to the first direction and the third direction being opposite the first direction. The distal portion includes a second fastener hole configured to receive a second fastener along a second fastener axis. | 11-17-2011 |
20110282398 | Bone Screw Assembly and Instruments for Implantation of the Same - A bone screw includes a screw shaft extending longitudinally along a screw axis and a screw head extending from a proximal end of the screw shaft and configured to be releasably coupled to a surgical tool. The bone screw also includes a through hole defining a through hole axis and extending through the screw head, the through hole axis intersecting the screw axis at an acute angle α, the through hole being adapted to receive therein a second screw and tapering from a first end at a proximal end of the screw head to a second end opening to an outer surface of the screw head. | 11-17-2011 |
20120046698 | METHODS AND DEVICES FOR SPINAL FUSION - A pedicle fastener for implantation during a spinal fusion procedure includes a head and shank, the shank being connectable to the head and extending outwardly therefrom. The shank may include a shielding feature formed therein for accommodating an adhesive augmenting the pedicle fastener and improving implantation strength and stiffness thereof. A method for implanting the pedicle fastener includes forming a hole in a pedicle, applying the adhesive to the hole and sliding the shank of the pedicle fastener into the hole. The adhesive may also be applied to the hole through direct injection, injection through a longitudinal cannula formed in the pedicle fastener or by depositing the adhesive on the shank and inserting the shank into the hole. Polymerization of the adhesive may be accelerated by heating the pedicle fastener. | 02-23-2012 |
20120083849 | TOOL SYSTEM FOR PLACING VERTEBRAL FACET SCREWS AND OTHER SPINAL IMPLANTS - A surgical tool system for placing facet joint screws includes an elongated probe, and an inclinometer configured to mount on the probe for sensing an angular deviation of the probe from a horizontal and a vertical plane, and to produce corresponding signals for processing. A guide anchor screw or pin is configured for insertion in a top edge of a spinous process on a given spinal vertebra, and the pin includes a polyaxial swivel head having a guide opening or channel for passage of the probe. The system also includes a guide sleeve for operatively mounting the inclinometer thereon and directing a guide wire percutaneously into contact with a facet joint, and a cannulated facet screw arranged to be advanced over the guide wire and threaded percutaneously through the facet joint. | 04-05-2012 |
20120089195 | SYSTEM AND METHOD FOR SELF FILLING BONE SCREWS - A self filling autograft bone screw for stabilizing and fusing bones within a body of a patient. The self filling autograft bone screw includes an elongated body member, a lumen disposed within the elongated body member, a plurality of external threads, a cutting section, and at least one opening disposed along the length of the elongated body member. A system and method for inserting a bone screw into a bone of a patient's body includes advancing and positioning a self-filling bone screw including an elongated body member, a lumen disposed within the elongated body member, a plurality of external threads, a cutting section, and at least one opening disposed along the length of the elongated body member into a bone within a patient's body. | 04-12-2012 |
20120095515 | Cannulated Screw and Core Assembly - A cannulated screw and core assembly includes a cannulated screw having an elongate shaft with a central bore including internal threads and a recess at a proximal end for receiving a tool for applying torque to the screw; and a complementary core shaped to be threaded into the central bore and having a frangible portion. Rotation of the core causes the core to separate at the frangible portion, resulting in a screw having a reinforcing core extending substantially along the internal bore of the screw. The disclosure includes a tool for attaching the disclosed cannulated locking screw to a bone fragment or plate. The tool may include a barrel shaped to receive the core assembly and includes a handle attached to a proximal portion of the barrel and a shank that extends through the barrel to engage an end of the core. | 04-19-2012 |
20120123485 | BONE IMPLANT AND SYSTEMS THAT CONTROLLABLY RELEASES SILVER - Silver and/or zinc ion releasing implants, systems and method of operating, inserting and activating/inactivating them are described. In some variations the implant is configured as a bone implant that includes a bone-screw or intramedullary rod like body configured to receive a treatment cartridge having a plurality of ion-releasing members configured as an anode that can controllably engage with a catheter to turn galvanic release of ions on/off as desired. These devices may be configured to release silver ions (and/or zinc ions) above a predetermined level for a predetermined period of time and may maintain a concentration of ions over a relatively large volume of tissue. The ion-releasing members may be configured to reduce or prevent implant movement. | 05-17-2012 |
20120143261 | SYSTEM FOR INSERTING A PIN INTO A SCREW - A system for inserting an augmentation pin into an augmentation screw, including a pin-inserter with an axial through-bore and a lateral opening. A pin-magazine with a pin-retainer for an augmentation pin in insertable in the lateral opening. The pin-magazine is placed in the lateral opening of the pin-inserter and an augmentation pin in the pin-retainer is aligned with the axial through-bore. The augmentation pin may be pushed by means of a pusher from the pin-magazine into an augmentation screw, when the augmentation screw is arranged in front of the pin-inserter. | 06-07-2012 |
20120143262 | VARIABLE ANGLE BONE SCREW FIXATION ARRANGEMENT - The invention concerns a fixation apparatus comprising a holder ( | 06-07-2012 |
20120143263 | SCREW - An orthodontic mini-screw comprises a screw head arranged to be coupled to an ancillary member. A threaded body couples to the screw head and has a first portion arranged to locate in a cortical bone layer of a patient's jaw bone. A second portion of the threaded body is arranged to extend a predefined distance beyond the cortical bone layer and into an adjacent cancellous bone layer, such that a channel extends through the threaded body and out of at least one void located in the first portion. In use the channel is arranged to deliver a settable bio-compatible material into the cancellous bone layer to assist with anchorage of the mini-screw. | 06-07-2012 |
20120172934 | Expansion Screw Bone Tamp - A method of compacting and stabilizing bone in the spine using an expandable screw and bone filler. The method comprises placing an expanding screw through a pedicle and into a fractured vertebral body using established techniques; and expanding the screw within the body to create a cavity by tamping bone around the expanded aspect of the screw. The screw can be expanded and rotated about its rotational-axis to tamp bone adjacent to the expanded screw. After compaction, the screw is removed and the cavity is filled with bone filler. | 07-05-2012 |
20120197311 | MINIMALLY INVASIVE SPINAL FACET COMPRESSION SCREW AND SYSTEM FOR BONE JOINT FUSION AND FIXATION - A system comprising a screw element having a generally cylindrical body having a bore or lumen therethrough and a plurality of fenestrations or windows through which biological material may be provided. The system comprises a tool for inserting the biological material into the screw element so that the biological material may extrude through the plurality of fenestrations or windows and through an aperture in the tip of the screw element thereby enabling providing a fusion mass across two adjacent facet bones or a facet joint wherein the screw itself provides both a fixation component and a screw component. | 08-02-2012 |
20120203286 | Bone Fastener and Methods of Use - A bone fastener includes a shaft extending from a first end to a second end and defines a longitudinal axis. The shaft includes an inner surface that defines an axially extending cavity. The bone fastener further includes a body disposed within the cavity and in fixed engagement with the inner surface. The body includes a rigid element positioned within only a subregion of the cavity to form a stiffened zone exclusively in an adjacent portion of the shaft. Methods of use are disclosed. | 08-09-2012 |
20120203287 | MATERIAL DELIVERY APPARATUS FOR A BONE SCREW - A material delivery apparatus for a bone screw includes an attachment member having a lumen disposed therethrough and adapted to removably attach to the bone screw. The apparatus further includes a delivery cannula fixedly disposed through the lumen and adapted to extend into a central bore of the bone screw for the delivery of material thereinto. | 08-09-2012 |
20120221062 | MEDICAL DEVICE, APPARATUS, AND SURGICAL METHOD - A medical device is provided, the device, for example, being implantable into a human or animal body or being an augmentation device for strengthening human or animal hard tissue for subsequent implantation of a separate implant. The device includes a sheath element suitable of being brought into contact, during a surgical operation, with live hard tissue and/or with hard tissue replacement material. The sheath element has a, for example, generally elongate shape and a longitudinal bore defining a longitudinal opening reaching from a proximal end of the sheath element into a distal direction, and a plurality of holes in a wall of the opening. Further, the device includes a liquefiable element that is insertable or inserted in the longitudinal opening and at least partly liquefiable by the impact of energy impinging from the proximal side. | 08-30-2012 |
20120259373 | BONE IMPLANTS FOR THE TREATMENT OF INFECTION - Described herein are devices, systems and methods for treating disease and/or infection by the release of silver from an implant over an extended period of time. In particular, the devices described herein may be used to treat infections such as osteomyelitis by the controlled release of silver ions from multiple sites of an extended-use implant. This implant typically includes a plurality of arms that both anchor and help distribute the released ions within the tissue. Power may be applied to release the silver ions into the tissue. | 10-11-2012 |
20120265256 | BONE SCREW - A bone screw is created, with a thread section ( | 10-18-2012 |
20120265257 | Polyaxial bone screw with shank-retainer insert capture - A polyaxial bone screw assembly includes a threaded shank body member having an upper portion with an internal drive and, alternatively, a laterally extending alignment rib or fin. The bone screw assembly also includes a lockable receiver coupling member, an open retainer ring member having a slit or gap and a compression insert member. An inset conical or cylindrical surface on the shank upper portion frictionally engages a similarly shaped inner surface of the retainer ring. The receiver includes a restrictive lower opening that allows for uploading the shank upper portion and compressed retainer ring into the receiver cavity, but prevents passage of the retainer ring out of the receiver once the ring inner surface engages the conical surface of the shank upper portion. | 10-18-2012 |
20120271361 | Functionalized Nanodiamond Reinforced Biopolymers - The present invention includes a composition for implantation in a patient, comprising surface-functionalized nanodiamonds and at least one biodegradable biocompatible polymer. The present invention also includes a surgical fixation device for use in a patient. | 10-25-2012 |
20120271362 | POROUS BONE SCREW - A bone screw is described which includes a one-piece threaded screw body composed at least partially of a rigid foam. The screw body is headless and includes a bore extending therethrough to define a cannula and thereby providing the screw body with an annular shape defining a radial wall thickness. At least a central portion of the screw body is formed of the rigid foam which defines a matrix having a plurality of inter-connected pores therein. The inter-connected pores are disposed throughout the complete radial wall thickness of the screw body from an outer surface of the screw body to an inner surface thereof within the cannula, such as to permit bone in-growth through the complete radial wall thickness of the annular screw body. The inter-connected pores and the cannula thereby respectively allow bone in-growth through the complete radial wall thickness and the full axial length of the screw body. | 10-25-2012 |
20120271363 | UNIVERSALLY DEPLOYABLE AND EXPANDABLE BONE SCREW ANCHOR - A self-expanding bone screw anchor assembly adapted to allow the screw body to engage the bone and the anchor to attach thereto. The anchor assembly is adapted to be universally deployed with a variety of installation tools. | 10-25-2012 |
20120310290 | Polyaxial bone screw with spherical capture, compression insert and alignment and retention structures - A polyaxial bone screw assembly includes a receiver, a shank, an articulation structure for retaining the shank in the receiver and a compression insert for engagement with a longitudinal connecting member such as a rod. The articulation structure includes substantially spherical convex and concave surfaces that slidably engage both shank and receiver surfaces to provide compound articulation between the receiver and the shank. The receiver includes inwardly directed spring tabs engaging the insert and prohibiting rotation of the insert within the receiver. | 12-06-2012 |
20130096634 | Screw With Anchor Features - Screws for anchoring in cancellous or other low-quality bone are described. One type of screw addresses the problem of extravasation of bone cement when filling an area of low-quality bone. The screw includes an expandable container for retaining bone cement and anchoring the screw in low-quality bone. The screw also includes an anchoring device for holding the screw in place in the bone while it is supplied with bone cement or other appropriate filler. The screw further includes a head for connecting to a rod or other apparatus. A second type of screw uses an expandable container to deform two or more fins to compress cancellous bone and/or anchor in cancellous bone. | 04-18-2013 |
20130131733 | BONE SCREW, METHOD FOR MANUFACTURING THE BONE SCREW, AND TOOL FOR MOUNTING AND REMOVING THE BONE SCREW - A bone screw includes a front portion, a rear portion, and a shaft portion. The shaft portion is fixedly joined to the front portion and the rear portion, so as to form an integral bone screw. The Young's modulus of the shaft portion is smaller than that of the front portion and that of the rear portion. | 05-23-2013 |
20130144344 | DEVICE FOR SELECTIVE BIOLOGICAL SYNTHESIS OF A BONE TISSUE - Device for selective biological synthesis of a bone tissue including a screw for the stabilization of a fracture or of a porotic bone tissue, wherein said screw is arranged along an axis (X), substantially longitudinal with respect to said screw, and it is constituted by an extended body, from a first end or tip and from a second end or head, wherein at least said extended body and said second end or head include a longitudinal channel, wherein said extended body has at least one hole or slot, wherein said device includes a pin inserted into the longitudinal channel and provided with means for releasable connection with said screw, for reinforcing the device and for the releasable closure thereof. | 06-06-2013 |
20130184769 | SYSTEMS AND METHODS FOR THE FIXATION OR FUSION OF BONE USING COMPRESSIVE IMPLANTS - First and second bone segments separated by a fracture line or joint can be fixated or fused by creating an insertion path through the first bone segment, through the fracture line or joint, and into the second bone segment. An anchor body is introduced through the insertion path. The distal end of the anchor body is anchored in the interior region of the second bone segment. An elongated implant structure is passed over the anchor body to span the fracture line or joint between the bone segments. The proximal end of the anchor body is anchored to an exterior region of the first bone segment to place, in concert with the anchored distal end, the anchor body in compression, to thereby compress and fixate the bone segments relative to the fracture line or joint. | 07-18-2013 |
20130204309 | SELF-TAPPING BIOCOMPATIBLE INTERFERENCE BONE SCREW - A biocompatible interference screw for soft tissue or bone-to-bone fixation comprises a screw body extending from a screw head to a distal tip of the screw. The screw body has an outer surface, and comprises polyether-ether-ketone (PEEK) material. Advantageously, the body outer surface has a textured surface finish for substantially improving pull-out strength of the interference screw. The textured surface finish is textured, in preferred embodiments, with a minimum of approximately 16 micro inches of surface roughness. The screw head comprises a tapered square keyhole for receiving a distal end of a driver instrument. The screw comprises a series of threads, which have a relatively smooth profile, in order to prevent graft tissue laceration as the screw is being inserted. The distal tip of the screw body comprises a narrow tip, and a distal end of the screw body is angled inwardly toward the narrow distal tip. | 08-08-2013 |
20130211464 | LOCK PIN TYPE CENTRAL NAIL DEVICE - A lock pin type central nail device has a hollow screw and a central nail, the external revolution surface of the hollow screw is provided with a first external thread segment, a central hole is arranged in the hollow screw in a axially penetrating manner, and the central nail is adaptively mounted into the central hole of the hollow screw, so that the hollow screw and the central nail ( | 08-15-2013 |
20130238036 | Bone Compression and Fixation Devices - A bone screw, for drawing first and second bone fragments together, includes a shaft having a distal section and a proximal section. The distal section has a first external male screw thread and a minor diameter. The proximal section has a second external male screw thread. A major diameter of the distal section is larger than a major diameter of the proximal section. The bone screw includes a sleeve that has an internal female screw thread configured to mate with the second male screw thread. A distal portion of the sleeve has an outer diameter. The outer diameter is equal to or smaller than the minor diameter of the distal section of the shaft. | 09-12-2013 |
20130253594 | SYSTEM AND METHOD FOR SECURING AN IMPLANT TO A BONE CONTAINING BONE CEMENT - A bone anchor which has thread characteristics on the distal shaft adjacent the tip suitable for engaging bone cement and different thread characteristics on the proximal shaft adjacent the head suitable to engage and secure the anchor to natural cancellous and cortical bone. The thread on the distal shaft is designed to engage and secure the anchor to bone cement embedded within the bone without fracture of the bone cement. In particular embodiments, the distal shaft bears two threads which merge to form a single proximal thread on the proximal shaft, the distal threads having half the pitch of the proximal thread. | 09-26-2013 |
20130268010 | BONE SCREW AND SELF-RETAINING DRIVER - Techniques disclosed herein include systems and methods for a bone screw and self-retaining driver. The system includes a mechanism that enables a bone screw to be rigidly attached to a screwdriver for manipulation and transfer of bone fragments and grafts to a fixation site, such as during surgery. The system includes a cannulated bone screw that has a drive connection that engages with a drive structures of a screwdriver. The bone screw also includes a structural connector that securely attaches to or receives an internal shaft or rod of the screwdriver. The internal shaft or rod of the screwdriver can rotate and slide independent of an outer shaft of screwdriver. Accordingly, the internal shaft of the screwdriver can rigidly connect with the bone screw enabling applied torque to the screwdriver to be transferred to the bone screw, without the bone screw falling off of the drive connection. | 10-10-2013 |
20130274815 | Polyaxial bone screw with spherical capture, compression insert and alignment and retention structures - A polyaxial bone screw assembly includes a receiver, a shank, an articulation structure for retaining the shank in the receiver and a compression insert for engagement with a longitudinal connecting member such as a rod. The articulation structure includes substantially spherical convex and concave surfaces that slidably engage both shank and receiver surfaces to provide compound articulation between the receiver and the shank. The receiver includes inwardly directed spring tabs engaging the insert and prohibiting rotation of the insert within the receiver. | 10-17-2013 |
20130289631 | Polyaxial Bone Screw Assembly - A polyaxial bone screw assembly includes a shank body having an upper head portion with a mating segment and a first partial spherical surface, a retainer structure being mateable with the mating segment of the upper head portion, the retainer structure having a second partial spherical surface such that when mated, the first and second partial spherical surfaces form a spherical ball member, a receiver defining an open channel and having a base with a seating surface partially defining a cavity, the open channel communicating with the cavity, the cavity communicating with an exterior of the base through an opening sized and shaped to receive the shank upper head portion therethrough, and a bushing sized and shaped to fit within open channel and cavity, the bushing having a lower rounded surface engageable with a top surface of the spherical ball member formed by the shank and retainer structure. | 10-31-2013 |
20130304135 | SYSTEM FOR INSERTING A PIN INTO A SCREW - System for inserting an augmentation pin into an augmentation screw, comprising a pin inserter with an axial through-bore and a lateral opening, a pin-magazine with a pin-retainer for an augmentation pin, wherein the pin-magazine may be placed in the lateral opening of the pin-inserter and an augmentation pin in the pin-retainer may be aligned with the axial through-bore. The augmentation pin may be pushed by means of a pusher from the pin-magazine into an augmentation screw, when the augmentation screw is arranged in front of the pin-inserter. | 11-14-2013 |
20130338720 | APPARATUS AND METHOD OF SPINAL IMPLANT AND FUSION - An apparatus and method of performing a minimally invasive posterior spine fusion. More specifically an apparatus with a handle and a forked head on the distal end of the handle is used to grasp implant material and introduce the material to an implant site. The shaft of the apparatus is shaped so as to allow the affixation of a drill guide and drill while simultaneously holding the implant material in the implant site. After removal of the boring tools and assembly of the fusing element, the apparatus can be selectively removed from the implant site. A method of achieving facet joint fusion with near simultaneous fixation is also disclosed. | 12-19-2013 |
20140012330 | Methods of Stabilizing the Sacroiliac Joint - Methods of stabilizing the sacroiliac joint by placing an expandable device in the joint to generate laterally opposing forces against the iliac and sacral surfaces of the SI joint to securely seat the device in a plane generally parallel to the SI joint. The expandable device is coated with or otherwise contains a bone material to promote fusion of the joint. The expandable device used in methods of the present invention can be, for example, an expandable cage, a balloon, a balloon-expandable stent or a self-expanding stent. | 01-09-2014 |
20140039565 | SYSTEMS AND METHODS FOR INJECTING FLUID INTO BONE AND FOR INSERTING BONE SCREWS AND BONE SCREWS FOR SAME - Systems and methods for the insertion of bone screws and for fluid injection using bone screws are described. A bone screw used for fluid injection includes a screw body with a central passage extending at least partially into the screw body and defining an inlet end which includes an opening configured to matingly receive therein an injector tip of a fluid injector. The screw body includes a number of fluid flow passages extending through the screw body wall such as to direct fluid in an outward direction from within the central passage, through the screw body, and into the tissue site surrounding the screw. Another bone screw which is inserted using a guide wire includes a cannulated passage having a non-circular cross-section configured to rotationally interconnect the guide wire such that relative axial rotation between the guide wire and the bone screw is prevented. | 02-06-2014 |
20140046379 | METHODS AND DEVICES FOR DELIVERY OF MEDICINE TO BONE - A bone screw includes a shaft, a cannulated portion formed in the shaft, and a fenestration in the shaft connecting the cannulated portion to an exterior of the bone screw. A wall between the cannulated portion and the exterior of the bone screw includes a first wall portion having a different thickness than a second wall portion. | 02-13-2014 |
20140046380 | JOINT FUSION - Techniques for joint fusion are described, including obtaining a visual image of a joint and two or more bones connected by the joint, examining the visual image to confirm a pathology and identify a location in which to insert an implant, creating an incision in a tissue adjacent to the joint, preparing the location for insertion of the implant, inserting the implant into the joint using one or more tools, the one or more tools including a drill guide. Some embodiments include packing an implanted or implantable screw with a material using a packing tube. | 02-13-2014 |
20140046381 | SCREW FOR JOINT FUSION - Techniques for joint fusion are described, including a screw comprising a head having a partially flat surface and an opening for receiving a screwdriver tip, the head able to fit within a drill guide, a tip having another opening, a shaft extending from the head to the tip, the shaft having a plurality of holes and a thread on an external surface of the shaft, and a cannula within the shaft extending from the opening to the another opening. | 02-13-2014 |
20140046382 | SYSTEM FOR JOINT FUSION - Techniques associated with a system for joint fusion are described, including a drill guide assembly having a drill guide and a pin sleeve, the drill guide including a drill guide head having an opening, a shaft configured to receive the pin sleeve, a drill guide tip configured to engage a bone, and a cannula configured to receive an implant, a striker tube configured to fit over the pin sleeve, the striker tube having an edge configured to fit over the drill guide head, a cannulated drill bit configured to drill a pilot hole in a bone tissue configured to receive the implant, a stop collar configured to be placed over the cannulated drill bit, and a packing plunger assembly having a packing tube and a plunger partially inserted into the packing tube, the packing plunger assembly configured to pack the implant with a material. | 02-13-2014 |
20140046383 | SYSTEM FOR JOINT FUSION - Techniques for joint fusion are described, including a drill guide assembly having a drill guide and a pin sleeve, the drill guide including a drill guide head having an opening, a shaft configured to receive the pin sleeve, a drill guide tip configured to engage a bone, and a cannula configured to receive an implant, a first guide pin configured to guide placement of the drill guide, a striker tube configured to fit over at least a portion of the pin sleeve, a cannulated drill bit configured to drill a pilot hole in a bone tissue, a stop collar configured to be placed over the cannulated drill bit and to be attached to the cannulated drill bit using a ridge, and a parallel spacer instrument configured to guide placement of a second guide pin at a distance from the implant after the implant is implanted into the bone tissue. | 02-13-2014 |
20140046384 | MINIMAL INCISION REMOVABLE BONE SCREW, DRIVER, AND METHOD OF USE - A surgical bone screw ( | 02-13-2014 |
20140058457 | ANCHOR-IN-ANCHOR SYSTEM - An anchor-in-anchor fixation system is provided for securing underlying structure, such as bone. The fixation system includes a linkage that defines first and second bores, a first bone anchor having a shaft for fixation to underlying bone, and a head that is configured to attach to the linkage in the first bore, and a second bone anchor having a shaft for fixation to underlying bone and a head that is configured to attach to the linkage in the second bore. | 02-27-2014 |
20140081338 | BONE SCREW - A bone screw is created, with a thread section ( | 03-20-2014 |
20140081339 | ANCHOR HAVING A CONTROLLED DRIVER ORIENTATION - The present disclosure relates to an interference screw having a body with a proximal end, distal end, and longitudinal axis extending between thereinbetween. The screw further includes threads for fixing the screw into bone. The screw further includes a through bore defined by the body. The through bore extends between the proximal and distal ends along the longitudinal axis, and has a surface. The screw further includes a controlling member formed by the through bore surface. To install the screw into bone, a surgeon turns the screw with a driver that engages with the controlling member. The driver only engages the controlling member when it is in a driving orientation with respect to the controlling member. Advantageously, with this “one-way” engagement the surgeon can control and confirm the orientation of the driver without seeing the driver and/or screw. | 03-20-2014 |
20140114362 | SONIC SCREW - A screw for fixation of, for example, a fracture having a hollow shaft, a first outer thread and radial openings at its distal end, and a second outer thread and an inner engagement portion at its proximal end. The second outer thread is adapted to engage with a tissue protection sleeve. The inner engagement portion is adapted to fit to a driving end of a driving tool. By way of this, forces in axial or radial direction may be applied to the screw by the sleeve, and forces in rotational direction may be applied by the driving tool. Therefore, the screw can be installed accurately at the intended site in an object. | 04-24-2014 |
20140128926 | COMPRESSION INSTRUMENT - A system and method for pressing fragments of a fracture against each other includes a compression device comprising a hollow shaft. The system has an inner engagement portion for engaging an outer feature of a screw head arranged at a distal end of the shaft. The system has a supporting element with a contact surface adapted to abut on one of the fragments, and a joint is provided between the supporting element and the hollow shaft. The joint is formed so as to allow a rotation of the shaft about a longitudinal axis thereof relative to the supporting element. Additionally, the joint is formed to allow a pivot movement of the supporting element relative to the shaft. | 05-08-2014 |
20140135850 | BONE SCREW, AND BONE FIXATION SYSTEM AND METHOD - A bone screw for pelvic bone fixation, the bone screw comprising an elongate body having a first end which is threaded for engaging at least one bone in the pelvic region, a second end comprising a screw head, and at least one opening across the length of the elongate body for adjustably receiving a fastening means to limit movement of the bone screw away from the engaged bone in use, wherein the at least one opening is shaped such that the position of the fastening means relative to the elongate body of the bone screw can be adjusted. A system for bone fixation in the pelvic region includes the bone screw and the fastening means. | 05-15-2014 |
20140163624 | Bone Screw with Deflectable Portion - An anchoring element, such as a bone screw, may comprise an at least partially threaded shaft having a core and a longitudinal channel. An elongated element movable with the channel may be a tensioning element, for example affixed to the distal portion, and/or a rigid element. The core may have one or more lateral cut-outs, which may be V-shaped, at the distal portion. Each cut-out may be backed by an effective hinge that may be displaced from the longitudinal axis, and may have a transverse slit between the hinge and an opposite surface of the core from the cut-out. Upon axial movement of the elongated element, e.g. toward a proximal end of the shaft, the distal portion may deflect to an angle from the shaft's longitudinal axis. Alternatively, the anchoring element may be pre-biased to deflect and maintained straight by a rigid element until axial movement of the rigid element. | 06-12-2014 |
20140207195 | DYNAMIC BONE FIXATION ELEMENT AND METHOD OF USING THE SAME - The present invention relates to dynamic bone fixation elements and a surgical method to stabilize bone or bone fragments. The dynamic bone fixation elements preferably include a bone engaging component and a load carrier engaging component. The bone engaging component preferably includes a plurality of threads for engaging a patient's bone and a lumen. The load carrier engaging component preferably includes a head portion for engaging a load carrier (e.g., bone plate) and a shaft portion. The shaft portion preferably at least partially extends into the lumen. Preferably at least a portion of an outer surface of the shaft portion is spaced away from at least a portion of an inner surface of the lumen via a gap so that the head portion can move with respect to the bone engaging component. The distal end of the shaft portion is preferably coupled to the lumen. | 07-24-2014 |
20140257409 | Bone screw - A threaded fastener for embedment into bone is disclosed. Threads are formed on cylindrical stock. The thread pattern features upper and lower surfaces. The upper surface includes (in section) two facets which intersect to form a “V” shaped contour and a lower surface which is undercut below an upper facet nearest a root of the fastener thread. The fastener includes a self-tapping cutter at a distal extremity and a driving head at its proximal extremity. The cylindrical stock contemplates two variants: it may be hollow from the proximal end to the self-tapping cutter or from the self-tapping cutter to its distal end. The self-tapping cutter is configured to feed bone shards into the hollow. | 09-11-2014 |
20140257410 | BONE ANCHOR WITH PLUG MEMBER AND TOOL FOR INSERTING THE PLUG MEMBER INTO THE BONE ANCHOR - A bone anchor includes a shaft having a first end and a second end, a bore extending from the first end to the second end, and a plug member which is insertable into the bore and guidable through the bore for closing the bore at the second end. The bone anchor is suitable for minimally invasive surgery in such a way a guide wire can be guided through the bone anchor and after the bone anchor has been anchored in the bone the plug member is inserted to close the open end of the bone anchor. A bone cement or a pharmaceutical substance can be introduced into the bone anchor. | 09-11-2014 |
20140277187 | PEDICLE SCREW WITH REVERSE SPIRAL CUT AND METHODS THEREOF - A pedicle screw with reverse spiral cut that allows for increased loading on a bone and increased osteointegration through automatic and self-managed expansion after the bone screw is inserted into the bone. The bone screw may be a fixation device comprising an elongated body having proximal and distal ends, said elongated body including an outer surface adapted to penetrate and anchor within a bone, and a head affixed to the distal end of the elongated body and adapted to receive a drive component, wherein the outer surface of the elongated body comprises threads extending from the outer surface in a first direction, and further wherein at least a portion of the outer surface of the elongated body comprises a reverse spiral cut into the outer surface in a second direction. | 09-18-2014 |
20140277188 | SELF DRILLING, SELF-TAPPING BONE SCREW AND METHOD OF INSTALLING FOR BICORTICAL PURCHASE - A self-drilling, self-tapping bone screw is described in which the bone screw has a drill tip free of threads and having a length at least as great as about the thickness of a proximal cortical bone layer, with the drill tip having opposed lands and a helical flute between each of the lands with each of the lands having a cutting edge configured to cut bone as the drill tip is rotated into the bone with the flutes conveying the bone debris away from the drill tip, where a lead thread begins to self-tap internal threads in the proximal cortical bone layer after the drill tip has drilled through the proximal cortical bone layer so as to avoid stripping the threads formed in the bone layer. A method of installation is also disclosed. | 09-18-2014 |
20140288607 | BONE IMPLANT AND SYSTEMS THAT CONTROLLABLY RELEASES SILVER - Silver and/or zinc ion releasing implants, systems and method of operating, inserting and activating/inactivating them are described. In some variations the implant is configured as a bone implant that includes a bone-screw or intramedullary rod like body configured to receive a treatment cartridge having a plurality of ion-releasing members configured as an anode that can controllably engage with a catheter to turn galvanic release of ions on/off as desired. These devices may be configured to release silver ions (and/or zinc ions) above a predetermined level for a predetermined period of time and may maintain a concentration of ions over a relatively large volume of tissue. The ion-releasing members may be configured to reduce or prevent implant movement. | 09-25-2014 |
20140303676 | OPEN-ARCHITECTURE INTERFERENCE SCREW - The present disclosure relates to an interference screw for creating an interference fit between a bone tunnel and tissue. The screw includes a threaded body having a proximal end, distal end, and thread extending around the threaded body between the proximal and distal ends. A supporting spline extends along a cannulation through the threaded body. The supporting spline is engagable with a delivery device. The screw further includes at least one opening defined by a surface between threads of the threaded body. A ratio of open surface area to closed surface area defines the opening and is selected such that, when torsionally loaded, the screw does not exhibit plastic deformation when inserted into an undersized bone tunnel. The screw further includes a tapered tip extending from the distal end of the threaded body. The tapered tip has a thread extending at least partway around the tapered tip. | 10-09-2014 |
20140303677 | Bone Screw With Channels - Embodiments of the invention may prevent or diminish a bone screw from “backing out” from bone. Bone particulate residing in channels of the bone screw may promote bone growth that would reduce the potential of backing out. Furthermore, bone particulate from drilling and tapping functions can cause increased friction. However, by placing bone particulate in channels of the bone screw, potential binding may be reduced resulting in less stress on the screw shaft. Also, breaking of screws during screw insertion may be reduced due to tapering of the screw. | 10-09-2014 |
20140343616 | ARTHRODESIS COMPRESSION DEVICE - A device for compression in arthrodesis is provided. The device is generally comprised of two screws, a proximal screw and a distal screw, the distal screw being configured to connect to the proximal screw. The proximal screw may have two portions, one portion with external bone threads, and one cylindrical portion. The two portions of the proximal screw may be formed such that they form an angle desirable for arthrodesis, or permanent fixation, of the joint. The distal screw may be inserted into the proximal screw, and may be further provided with additional external bone threads to provide compression at the joint site. | 11-20-2014 |
20140358184 | INTERLOCKING BIOMEDICAL IMPLANT FASTENER AND WASHER CONCEPTS - Biomedical implant fastener systems, such as bone screw systems and the like. In some embodiments, a fastener may comprise a first plurality of teeth, and a washer configured to be received on the fastener may comprise a second plurality of teeth configured to be engaged with the first plurality of teeth. The first plurality of teeth may be configured to engage with the second plurality of teeth such that so as to allow for selective rotation between the washer and the fastener in a first rotational direction and so as to prevent rotation between the washer and the fastener in a second rotational direction opposite from the first rotational direction when the fastener is engaged with the washer such that second plurality of teeth is engaged with the first plurality of teeth so as to prevent the fastener from backing out of the washer after engagement. | 12-04-2014 |
20150012048 | STEERABLE FASTENER FOR BONE - Bone fixation system including methods, apparatus, and kits, for steering a leading end of a fastener within bone. In some embodiments, the system may include (a) a flexible fastener having an external thread, and (b) a guide including a graspable handle attached or attachable to a wire having a distal end portion with a preformed longitudinal curvature in a direction indicated by the handle. The wire may be extendable through the fastener and configured to be advanced longitudinally, while extending through the fastener, such that the distal end portion of the wire penetrates bone ahead of a leading end of the fastener and creates a curved travel path for the leading end of the fastener. | 01-08-2015 |
20150032168 | CHARCO-RESIS IMPLANT, ALIGNMENT INSTRUMENT, SYSTEM AND METHOD OF USE - An implant system, alignment guide, bone fusion system and surgical method for correction of a flat foot or rocker-bottom deformity, such as a Charcot foot. The implant system includes a bone implant and an elongate member. The bone implant includes a proximal end, a distal end, a hole along a longitudinal axis, and at least one opening intersecting the hole. The elongate member includes a first end with a head portion, a second end with a coupling mechanism, and an opening along a longitudinal axis. The coupling mechanism of the elongate member engages the at least one opening to couple the bone implant to the elongate member. | 01-29-2015 |
20150057711 | Medical Insertion Apparatus - Provided are a medical insertion apparatus includes a screw body to be inserted into a body, and an electrode provided in the screw body and including an externally exposed portion, wherein a through-hole may be provided in the screw body or the electrode, and a medical insertion apparatus includes a screw body to be inserted into a body, and an electrode provided in the screw body and exposed to an outside of the screw body, wherein the screw body and the electrode may be provided in a connectable or separable structure. | 02-26-2015 |
20150066097 | BONE ANCHOR AND BONE ANCHOR ASSEMBLY COMPRISING THE SAME - A bone anchor ( | 03-05-2015 |
20150080972 | SYSTEM AMD METHOD FOR BONE FUSING IMPLANTS AND IMPLANT INSERTION TOOLS - A method for fusing two adjacent stacked bones includes the following. First, inserting first and second pins into first and second locations of a first surface of one of the two adjacent stacked bones, respectively. Next, inserting a dilator over each of the first and second pins to dilate tissue around the first and second pins. Next, inserting a tissue protector over the dilator and removing the dilator. Next, inserting a cannulated drill through the tissue protector over each of the first and second pins and drilling first and second openings in the first and second locations, respectively, wherein the first and second opening extend through the two adjacent stacked bones. Next, tapping threads in the first opening and inserting a first bone fusing implant in the first opening, wherein the first bone fusing implant comprises threads configured to engage the threads of the first opening. Next, impacting a broach into the second opening to generate a pattern corresponding to a pattern of a second bone fusing implant and then inserting the second bone fusing implant in the second opening. | 03-19-2015 |
20150134014 | SCREWS FOR GENERATING AND APPLYING COMPRESSION WITHIN A BODY - A compression screw system, said compression screw system comprising:
| 05-14-2015 |
20150289917 | Bone Anchor - A bone anchor for limiting the separation of two bones, for example in a canine knee, comprises a head having a socket for engaging a tool and a shaft extending from the head to a tip. The shaft comprises a threaded section, an intermediate section located between the head and the threaded section and an aperture extending through the intermediate section. The head has a larger diameter than the intermediate section. Also disclosed is a kit of parts comprising two bone anchors and a looped suture and a method for limiting the separation of two parts. | 10-15-2015 |
20150320464 | REINFORCED CANNULATED SCREW ASSEMBLY SYSTEMS AND METHODS - A reinforced cannulated screw assembly includes a cannulated screw and a reinforcing rod coupled to the cannulated screw. The cannulated screw includes a channel formed therethrough that is defined by an inner wall having at least one set of grooves formed therein. The reinforcing rod is configured for insertion into the channel. The reinforcing rod includes a set of protrusions configured to engage the at least one set of grooves. | 11-12-2015 |
20150320469 | BONE SCREW - A bone screw is created, with a thread section ( | 11-12-2015 |
20150327902 | METHOD AND APPARATUS FOR BONE FIXATION - A fastener assembly can include a proximal fastener member, a distal fastener member and an internal fastener member. The proximal fastener can include a fastener head and an internal wall defining an anti-rotation feature. The distal fastener can include a proximal end defining an internal bore and an external anti-rotation feature, and a distal end defining a bone anchor. The internal fastener can be positioned in the cannulated proximal fastener and threadably coupled to the distal fastener such that the proximal end of the distal fastener is telescopically received in a distal end of the proximal fastener. Rotation of the internal fastener in a first rotational direction can telescopically retract the distal fastener into the proximal fastener so as to be adapted to compress a bone fracture. Rotation of the internal fastener in an opposite rotational direction can extend the distal fastener relative to the proximal fastener. | 11-19-2015 |
20150327903 | BONE SCREW - There are disclosed embodiments of screws for use in orthopedic surgery, particularly in pediatric patients. In some embodiments, inner and outer implantable members are provided, with the outer implantable member threadable on the inner implantable member to provide compression on two or more bone parts. In some embodiments, screw members are provided with a threaded shaft, and the thread continues into the head of the screw member to enable the thread to remain in pediatric bone. | 11-19-2015 |
20150342656 | FRACTURE REDUCTION STRUCTURE - Technologies are generally provided for an attachment device to achieve pelvic fracture reduction and stabilization. An example attachment device may include two or more screws coupled together in succession to generate a reduction force when inserted through bony tissue. Each screw may have a hollow center, and a guide wire defining a linear or curvilinear path through bony tissue may be configured to pass through the center of the screws. Successive screw segments may exhibit increasing thread pitch to permit generation of a reduction force across multiple fracture planes. Each screw segment may vary in length, diameter, and pitch to enable customization of a configuration of the attachment device according to anatomical needs. Distal and proximal ends of each screw segment may be configured such that multiple rotational degrees of freedom of successive screws may be permitted about axes forming tangents with a longitudinal axis of the guide wire. | 12-03-2015 |
20150366600 | MEDICAL DEVICE, APPARATUS, AND SURGICAL METHOD - A pedicle anchor device is equipped for being used like a pedicle screw, i.e. for being implanted in the vertebra from dorsal direction (but generally at an angle to the sagittal plane, slightly inward towards the sagittal plane) through the pedicle so that a distal portion of the device protrudes into the vertebral body. The pedicle anchor device includes a pedicle anchor device body with a head portion, a shaft portion and a longitudinal bore that extends from a proximal end of the pedicle anchor device body and has a hole or a plurality of holes from the longitudinal bore outward, for example radially outward. | 12-24-2015 |
20150374417 | IMPLANTATION ASSEMBLY COMPRISING A DRIVE INSTRUMENT PRE-FITTED ON A BONE IMPLANT - The invention concerns an implantation assembly comprising a bone-anchoring element comprising a threaded rod provided at one of its ends with a head and an instrument for driving the bone-anchoring element, said instrument comprising a drive spindle removably premounted on the bone-anchoring element. | 12-31-2015 |
20160015438 | BONE ANCHOR DEVICE - A bone anchor device to connect two bone segments in a body has an elongated cylindrical member. The elongated cylindrical member has a shank, a first distal threaded end and a second proximal threaded end spaced by a middle portion of the shank. A first double helical thread formed on the first distal end has a pitch equal to or greater than a second helical thread formed at the second proximal end to create a compression between the two bone segments being connected. The shank has a maximum diameter extending the length of the second proximal thread end and extends therefrom on a constant tapered slope angle through the thread of the first distal end. This creates an increasing thread depth from a start of the distal threads to a maximum adjacent a tip at the distal end of the shank. | 01-21-2016 |
20160022339 | MEDICAL SCREW AND REMOVAL JIG FOR MEDICAL SCREW - Provided is a medical screw which can be readily extracted from bones after fusion of bone fractures or at replacement of the screw. The medical screw | 01-28-2016 |
20160022340 | MEDIAL COLUMN (MECO) FIXATION DEVICE, METHOD, AND SYSTEM - An orthopedic implant device and system support the fusion of bones in the medial column of the human foot. An exemplary implant uses an improved lag screw and supplemental components, including a washer plate and transverse screws which penetrate transverse through holes in the shaft of the lag screw. Additionally, a surgical procedure is described which may employ such an implant. The improved lag screw may be inserted at the plantar surface of the first metatarsal and support the fusion of, for example, the transverse tarsal joint, the cuneonavicular joint, and the tarsometatarsal joint. | 01-28-2016 |
20160030097 | SURGICAL LOCKING SCREW - The invention relates to a surgical locking screw for fastening bone parts in the event of a heel fracture, comprising a front end, a rear driving end having a drive for turning the locking screw, and an external thread, which has a constant thread pitch continuously over the axial extent of the external thread, wherein a major diameter of the external thread is constant in a first axial segment of the locking screw and increases with increasing distance from the front end in a second axial segment adjacent to the first axial segment in the direction of the rear end, wherein a minor diameter of the external thread is constant in the first and second axial segments, wherein the external thread extends, at least approximately, axially continuously over the entire axial extent of the locking screw, and wherein the minor diameter of the external thread extends over the entire axial extent of the external thread. | 02-04-2016 |
20160038186 | DEVICES AND METHODS FOR BONE ANCHORING - A device for fixation of bone tissue and methods of using same are provided. The device includes a first anchor positionable within a first bone region, a second anchor positionable within a second bone region and a wire interconnecting the first and second anchors. The wire is attached to the first anchor via an elastically deformable element having a force constant (K) of 20-80 N/mm along a longitudinal axis of the first anchor. | 02-11-2016 |
20160038201 | FLEXIBLE SCREW AND METHODS FOR SYNDESMOSIS REPAIR - A flexible screw comprising a first end and a second end coupled by a flexible mesh is disclosed. The first end comprises a threaded section. The second end comprises a head. The flexible mesh defines a hollow cylinder. A first driver engagement channel is defined by the head and extends from a proximal end of the head to the flexible mesh. A second driver engagement channel is defined by the threaded section and extends from the flexible mesh to a first depth within the threaded section. The first driver engagement channel and the second driver engagement channel are configured to receive a driver therein. | 02-11-2016 |
20160038203 | AXIAL TENSION SCREW - A method of repairing bone. In the method, a sleeve and a fastener may be provided, with the fastener projecting from the sleeve and having a trailing section disposed in threaded engagement with the sleeve. A leading section of the fastener may be driven into threaded engagement with bone. The sleeve may be advanced into contact with the bone to apply tension to the fastener and compress the bone. A trailing section of the fastener may be driven out of the sleeve and into threaded engagement with the bone. | 02-11-2016 |
20160038205 | PEDICLE SCREW WITH ELECTRO-CONDUCTIVE COATING OR PORTION - A pedicle screw may include an electrically conductive portion formed from a material having a greater electrical conductivity than that of the base material from which the screw is formed. The electrically conductive portion preferentially channels electrical energy supplied by an electrical probe to a location of the electrically conductive portion facing the nerve root. The portion thus provides a sort of electrical highway that helps to focus the electrical energy applied to the pedicle screw in a particular direction, towards the presumed location of the nerve root. As an alternative to placement of the electrically conductive portion in the pedicle screw itself, the electrically conductive portion could be placed within a tap that is used in preparing the pedicle for receipt of the pedicle screw (e.g., in forming the threaded structure in the pedicle bone into which the pedicle screw will then be placed). | 02-11-2016 |
20160089193 | Expansion Screw Bone Tamp - A method of compacting and stabilizing bone in the spine using an expandable screw and bone filler. The method comprises placing an expanding screw through a pedicle and into a fractured vertebral body using established techniques; and expanding the screw within the body to create a cavity by tamping bone around the expanded aspect of the screw. The screw can be expanded and rotated about its rotational-axis to tamp bone adjacent to the expanded screw. After compaction, the screw is removed and the cavity is filled with bone filler. | 03-31-2016 |
20160100870 | Bone Implants - The present disclosure provides various embodiments that may comprise an implant, to an instrument for implantation of the latter and to a method for manufacturing this implant which includes an elongated body between a free end and a head along a longitudinal axis on the one hand and turns of at least one threading on at least one portion of said body in proximity to the free end, along the longitudinal axis on the other hand, characterized in that the body includes a longitudinal internal conduit in at least one portion along the longitudinal axis, obtained by at least one first central machining operation parallel to the longitudinal axis and at least one second machining operation in a so-called transverse plane, not parallel to the longitudinal axis and crossing the wall of the body as far as the longitudinal internal conduit by making windows communicating between said longitudinal internal conduit and the outside of the body while preserving at least one portion of said turns and the wall of the body behind the turns, and preserving non-machined portions on the perimeter of said body. | 04-14-2016 |
20160120583 | Blunt Tip Bone Screw - In one embodiment, a bone screw includes a shaft having a proximal shaft end and a distal shaft end spaced from the proximal shaft end in a distal direction along a central axis. The shaft is helically threaded between the proximal and distal shaft ends. A tip extends from the distal shaft end in the distal direction, and defines a plurality of lands with cutting flutes disposed between adjacent lands. Each land has a bore-cutting edge that extends from an inner cutting edge end to an outer cutting edge end. The inner cutting edge end is disposed at a center of the distal end of the tip, and the outer cutting edge end is spaced from the center of the distal end of the tip. The bore-cutting edges may blunt the feel of the tip so as to reduce the likelihood of soft-tissue damage. | 05-05-2016 |
20160143671 | METHOD AND APPARATUS FOR JOINT FUSION - A system for implanting an implant screw into one or more bones of a patient, such as the sacrum and the ilium, can include a rod and a screw. The screw can be generally hollow and have a blunt distal end. The rod can include a threaded and pointed distal end that is inserted through the rod to drive the screw through the bones. Once the screw is at a desired position, the rod can be removed such that the sharp driving edge used to seat the screw does not remain in the bone. The system can further include an extraction tool having a generally hollow body sized to be inserted over the rod and a distally located screw engagement portion configured to engage the screw to adjust positioning of the screw after it is initially seated. | 05-26-2016 |
20160143679 | SCREW FOR JOINT FUSION - Techniques for joint fusion are described, including a screw comprising a head having a partially flat surface and an opening for receiving a screwdriver tip, the head able to fit within a drill guide, a tip having another opening, a shaft extending from the head to the tip, the shaft having a plurality of holes and a thread on an external surface of the shaft, and a cannula within the shaft extending from the opening to the another opening. | 05-26-2016 |
20160143742 | JOINT FUSION - Techniques for joint fusion are described, including obtaining a visual image of a joint and two or more bones connected by the joint, examining the visual image to confirm a pathology and identify a location in which to insert an implant, creating an incision in a tissue adjacent to the joint, preparing the location for insertion of the implant, inserting the implant into the joint using one or more tools, the one or more tools including a drill guide. Some embodiments include packing an implanted or implantable screw with a material using a packing tube. | 05-26-2016 |
20160151100 | BONE SCREW | 06-02-2016 |
20160183993 | OSTEOSYNTHESIS SCREW - The invention relates to an osteosynthesis device intended for holding, distraction or compression of fragments of a fractured bone. The device comprises a threaded pin ( | 06-30-2016 |
20160199112 | MEDICAL INSERTING APPARATUS | 07-14-2016 |
20160199113 | FIXATION ASSEMBLY AND METHOD OF USE | 07-14-2016 |
20160374740 | RETRACTABLE SCREW GUIDE - A surgical screw system comprising a cannulated screw, a guide wire and a driver. The screw has a head, a tubular body with a bore, and a tip opposite the head. The guide wire, shorter than the screw, is slidably disposed within the bore of the screw. The guide wire has a working end deployable beyond the tip of the screw, and the working end is sharpened to penetrate the bone and produce a pilot hole when an axial force is applied. The guide wire extends to deploy the working end beyond the tip to create the pilot hole, and fully retracts into the screw upon installation of the screw. The driver passes through the head of the screw into the bore, and applies the axial force to the guide wire. The driver may be used to drive the screw into the bone, and is removable from the screw. | 12-29-2016 |
20220133374 | SYSTEM OF A BONE ANCHOR AND AN ELONGATE INSTRUMENT - A system includes a bone anchor including a shank having a first end, a second end, a channel extending through the shank with a channel axis, and an internal advancement structure having at least a portion being closer axially to the second end than to the first end, and an elongate instrument configured to extend through the channel, with a tip portion and an external advancement structure configured to cooperate with the internal advancement structure. Engagement between the advancement structures facilitates holding of the tip portion at a first axial position relative to the bone anchor and movement of the tip portion from the first axial position towards both the first and second ends of the shank. The tip portion and the external advancement structure of the elongate instrument are insertable into and removable from the channel via the first end of the shank. | 05-05-2022 |