Patent application number | Description | Published |
20090297372 | Dual Chamber Valveless Mems Micropump - A valveless MEMS micropump capable of improved efficiency and performance is disclosed. The micropump includes two adjoining chambers separated by a piezoelectric actuated pump membrane. The micropump moves fluid through the chambers through diffuser elements characterized by differential directional resistance to fluid flow by piezoelectric actuation of the pump membrane. | 12-03-2009 |
20090299483 | SYSTEM AND METHOD FOR PROSTHETIC FITTING AND BALANCING IN JOINTS - A system and method for prosthesis fitting in joints comprising an artificial condyle and a spacer which cooperates with the condyle to form an artificial joint. The spacer embedded with at least one sensor which is responsive to a force generated between the condyle and the spacer. The artificial joint is adapted to move between a flexed position and an extended position defining a range of motion. The sensor is responsive to the force and generates an output representative of that force. The output is transmitted, either wirelessly or other, to a processor which utilizes an analysis program to display a representation of the forces applied. A practitioner utilizing the displayed analysis may intraoperatively determine the adjustments and balancing required within the artificial joint. The system may also utilize a ligament tension sensor which generates generates data representative of tension on a ligament of the artificial joint, and a joint angle sensor responsive to the range of motion of the artificial joint. The processor may be adapted to store the outputted sensor data to provide the practitioner with statistically relevant historical data. | 12-03-2009 |
20110308650 | Flow Control System for a Micropump - A flow control system is disclosed for use with a micropump for pumping a fluid to be administered through a catheter. The flow control system includes a first body portion, a membrane and a second body portion. The first body portion has a membrane-receiving inner surface, an inlet aperture in fluid communication with the micropump, and a mating surface disposed about the membrane-receiving inner surface and configured to mate with a mating surface of the second body portion. The membrane has a reinforcement annulus configured to be received by the first body portion membrane-receiving inner surface and a domed portion oriented to be movable from a closed position, in sealable communication with the inlet aperture, and an open position, in spaced apart relation from the inlet aperture. The membrane is oriented and sized to be biased in the closed position. The second body portion has a membrane-receiving inner surface, an outlet aperture configured to communicate with the catheter, and a mating surface disposed about the membrane-receiving inner surface and configured to mate with the mating surface of the first body portion. At least a portion of the membrane reinforcement annulus is positioned within the inner surface of the first body portion. The first body portion mating surface is positioned and maintained in sealed relation with the second body portion mating surface. Operation of the micropump causes the fluid to (a) flow from the micropump to the first body inlet aperture, (b) exert a pressure sufficient to move the membrane from the closed position to an open position, (c) flow around the membrane and through the second body outlet aperture and into the catheter. | 12-22-2011 |
20110309229 | Mold for Making a Membrane for Use with a Flow Control System for a Micropump - A mold for making a membrane having a reinforcement annulus configured to be received within a flow control system for use with a micropump is disclosed. The mold has a female body portion, a male body portion and a body support member. The female body portion has a cylindrical elongate lower portion extending along an axis and having a diameter D, and a centered, concave upper face having substantially the same diameter D and having a radius of curvature R. The upper face is oriented substantially perpendicularly to the axis of the elongate lower portion and extends therefrom. The male body portion has a cylindrical elongate upper portion having a lower terminus and extending along an axis. The upper portion thereof has a diameter substantially equal to D. The male body portion further has a central cylindrical portion having a height H and extending from the lower terminus along the axis of the upper portion. The central portion has a diameter of D-G, wherein G is the annular thickness of a spacing gap extending radially outward from the central portion. The male body portion further has a centered, convex lower face having a diameter substantially equal to D-G, a radius of curvature substantially equal to R and being oriented substantially perpendicularly to the axis of the elongate upper portion. The body portion support member has a generally elongated, tubular configuration and further has an inner diameter just slightly greater than D. The body portion support member is thereby configured to receive at least a portion of the female body portion and at least a portion of the male body portion, so that the female and male body portions can be maintained along the same axis. In this fashion, the convex face and concave face are positioned cooperatively to effect manufacture of the membrane having a reinforcement annulus configured to be received within a flow control system for use with a micropump. | 12-22-2011 |
20110309552 | Method of Making a Membrane for Use with a Flow Control System for a Micropump - A method of making a membrane for use with a flow control system is disclosed. A female mold body portion and a male mold body portion are provided. A body portion support member configured to receive at least a portion of the female body portion and at least a portion of the male body portion is provided. The female and male body portions are separated from one another. Membrane manufacturing material is provided to a concave portion of the female mold body portion. The sleeve is moved downward. The lower mold portion is lowered until it is just short of its final intended position. Excess membrane manufacturing material, if any, is removed from around the seam of the mold. The upper mold portion is lowered the remaining distance so that the two mold portions are separated by the exact distance desired for the final membrane thickness. | 12-22-2011 |
20120101584 | PATELLAR IMPLANT WITH VARIABLE WEIGHTS FOR KNEE REPAIR SURGERY - The present disclosure relates to a device for repairing a patient patella. The device comprises a patellar trial piece and a patellar implant. The patellar trial piece has selectable variable weights to correct mechanical properties of the patient patella. Such mechanical properties to be corrected include a moment of inertia and/or a center of gravity of the patient patella. The patellar implant has embedded weights correspond to the variable weights of the patellar trial piece. In one embodiment, the patellar trial piece has a plurality of variable weights to be inserted into a plurality of holes in the patellar trial piece. The weights are made of different materials. In another embodiment, the patellar trial piece has a rounded top surface and a substantially flat bottom surface with a plurality of pegs. The pegs are selected from pegs with variable weights that are made of different materials. | 04-26-2012 |
20120179069 | DEVICE AND METHOD OF SPACER AND TRIAL DESIGN DURING JOINT ARTHROPLASTY - A spacer block for gathering data to be used in the balancing of the joint arthroplasty or repair and in the selection of a trial insert which includes a first body piece and a second body piece. A plurality of sensors and a processor are positioned between the first body piece and the second body piece when the pieces are assembled together to form the spacer block. A chim is removably mounted to a top surface of the second body piece, the chim is associated with the plurality of sensors and positioned in relation to the plurality of sensors such that a force exerted on the chim by a weight bearing surface is detected by the plurality of sensors. | 07-12-2012 |
20120290088 | System and Method for Prosthetic Fitting and Balancing in Joints - A device for intraoperative use in balancing joint forces and verifying the placement of the tibial component in total knee arthroplasty includes a spacer defining an enclosure; the spacer is sized to engage a top portion of the tibial component. A sensor array is embedded in the spacer, the sensor array measures forces on the spacer. A wireless transceiver is embedded in the spacer and forwards the output to a processor. The processor is analyzes the output and creates a pressure distribution graph indicative of the forces on the spacer, thereby assisting a surgeon in performing selective soft tissue release or component positioning in connection with surgical implantation of an orthopedic knee prosthesis. | 11-15-2012 |
20130144214 | CARTRIDGE SYSTEM FOR DELIVERY OF MEDICAMENT - A cartridge system for delivery of medicament includes as membrane placed between two disk magnets that are housed within pump body inserts. The pump body inserts having flow channels and fluid openings are between two inlet/outlet members. The inlet/outlet members each having a fluid outlet component and fluid openings are securely engaged to two reservoirs containing fluid medicaments. | 06-06-2013 |
20130144254 | DRUG DELIVERY DEVICE AND METHODS THEREFOR - A drug delivery device for delivery of medicament having a delivery pump system and a cartridge system, the delivery pump system operating electromagnetically by driving two disk magnets that are housed within pump body inserts of the cartridge system. The displacement of the magnets and an elastomer membrane placed between the magnets of the cartridge system results in a volumetric change within two reservoirs and the flow of medicaments. The medicament flows from the reservoirs to the inlet/outlet members via the pump body inserts and discharged to a patient user's body through an infusion set. | 06-06-2013 |
20130237947 | MULTI-PORTED DRUG DELIVERY DEVICE HAVING MULTI-RESERVOIR CARTRIDGE SYSTEM - A cartridge system of a multi-ported drug delivery device with independently actuated collapsible reservoirs, for delivery of medicaments, which includes membranes placed between disk magnets that are housed within pump body inserts. The pump body inserts having flow channels and fluid openings are between two inlet/outlet members with communication control through active valves and dynamically stressed membranes. The inlet/outlet members of the cartridge system each having a fluid outlet component and fluid openings are securely engaged to two or more reservoirs containing fluid medicaments. The cartridge system driven by the pump driver system delivers an appropriate dosage of medicament for treatment prescribed. | 09-12-2013 |
20130274576 | MEDICATION DELIVERY DEVICE WITH MULTI-RESERVOIR CARTRIDGE SYSTEM AND RELATED METHODS OF USE - A medication delivery system for delivering medicament to a body of a user. The medication delivery system may include a housing having a plurality of medicament reservoirs therein, a first sensor configured to continuously monitor a parameter of the body, and a pump mechanism configured to pump medicament from each of the plurality of medicament reservoirs to a delivery mechanism having a portion disposed within the body of the user. | 10-17-2013 |
20130274577 | Medication Delivery Device and Related Methods of Use - Embodiments of the disclosure relate to medical devices and, in particular, to devices for delivery of basal and/or bolus doses of one or more medicaments to a patient. In one embodiment, a medical device for delivering a medicament to the body of a user may include a reservoir configured to contain the medicament, a delivery mechanism for channeling the medicament from the reservoir to the user, a pumping mechanism for pumping the medicament from the reservoir, through the delivery mechanism, and to the user, wherein the medical device may be configured to deliver a dose of the medicament to the user. The medical device may also include a sensor for monitoring a parameter of the body and a display of information to alert and keep the user informed. | 10-17-2013 |
20130345650 | Medicament Distribution Systems and Related Methods of Use - Embodiments of the disclosure may include a medical device for releasing a medicament. The device may include a multi-layer patch. The patch may include a base layer configured to secure the patch to a body of a user and a medicament array located adjacent the base layer. The array may include a plurality of wells configured to release a quantity of medicament from the array to the body of the user. The device may also include a cover layer located on a side of the medicament array opposite the base layer and a pump operably coupled to the patch and configured to deliver a quantity of fluid to the patch. | 12-26-2013 |
20140107589 | ELECTROMAGNETICALLY ACTUATED VALVE AND RELATED METHODS OF USE - A valve assembly may include a valve body defining a housing for receiving a plunger, wherein the valve body includes an inlet channel and an outlet channel in selective fluid communication with the inlet channel. The valve assembly may also include a deflectable membrane operably coupled to the plunger, wherein the membrane is configured to selectively prevent fluid flow from the inlet channel to the outlet channel. Furthermore, the valve assembly may include an electromagnet for controlling a position of the plunger. | 04-17-2014 |
20140155819 | Medicament Delivery Systems - Embodiments of the disclosure may include a medical device for delivering medicament to a body of a user. The device may include a connector for channeling a fluid from a fluid source and a device platform configured to receive the fluid via the connector. The device platform may contact the user's body. The device may further include one or more fluid cannulae coupled to and extending from the device platform and configured for insertion into the body. The fluid cannulae may be configured to receive the fluid from the device platform. The device may also include one or more channels configured to channel the fluid through the connector, into the device platform, into the one or more fluid cannulae, and into the body. The device may also include one or more sensors coupled to the device platform and configured for monitoring a parameter of the body. | 06-05-2014 |
20140194812 | PUMP CARTRIDGE UNIT HAVING ONE OR MORE MEDICAMENT RESERVOIRS - In one embodiment, a medicament pump cartridge may include a reservoir configured to store a medicament, wherein the reservoir may be configured to transition between an expanded configuration when filled with medicament and a collapsed configuration when empty. The medicament pump cartridge may include an electromagnetic pumping mechanism, wherein the electromagnetic pumping mechanism includes at least one magnet secured to a membrane. Further, the medicament pump cartridge may include an electromagnetic valve operably coupled to the electromagnetic pumping mechanism. The pump cartridge may be configured to allow for secured refills through compatible ports. The pump cartridge may include light indicators for ports/orifice that communicate with pump, and possess sensor volumetric feedback for continuous monitoring of the medicament volume. | 07-10-2014 |
20140243840 | DEVICE AND METHOD OF SPACER AND TRIAL DESIGN DURING JOINT ARTHROPLASTY - A spacer block for gathering data to be used in the balancing of the joint arthroplasty or repair and in the selection of a trial insert which includes a first body piece and a second body piece. A plurality of sensors and a processor are positioned between the first body piece and the second body piece when the pieces are assembled together to form the spacer block. A chim is removably mounted to a top surface of the second body piece, the chim is associated with the plurality of sensors and positioned in relation to the plurality of sensors such that a force exerted on the chim by a weight bearing surface is detected by the plurality of sensors. | 08-28-2014 |
20140257350 | CARTRIDGE SYSTEM FOR DELIVERY OF MEDICAMENT - A cartridge system for delivery of medicament includes as membrane placed between two disk magnets that are housed within pump body inserts. The pump body inserts having flow channels and fluid openings are between two inlet/outlet members. The inlet/outlet members each having a fluid outlet component and fluid openings are securely engaged to two reservoirs containing fluid medicaments. | 09-11-2014 |
20140336614 | DRUG DELIVERY DEVICE AND METHODS THEREFOR - A drug delivery device for delivery of medicament having a delivery pump system and a cartridge system, the delivery pump system operating electromagnetically by driving two disk magnets that are housed within pump body inserts of the cartridge system. The displacement of the magnets and an elastomer membrane placed between the magnets of the cartridge system results in a volumetric change within two reservoirs and the flow of medicaments. The medicament flows from the reservoirs to the inlet/outlet members via the pump body inserts and discharged to a patient user's body through an infusion set. | 11-13-2014 |