Patent application number | Description | Published |
20100168778 | DEVICES FOR TRANSCATHETER PROSTHETIC HEART VALVE IMPLANTATION AND ACCESS CLOSURE - Apparatus for use in conjunction with implanting a collapsible and re-expandable prosthetic heart valve in a patient by means that are less invasive than traditional open-chest, open-heart surgery. The apparatus may include a one-way valve for preventing blood from escaping from the patient's circulatory system when that system is entered in order to get the prosthetic heart valve into that system. The apparatus may include various forms of cutters for gaining access to the patient's circulatory system. The apparatus may include various forms of devices for quickly closing the access to the patient's circulatory system after the prosthetic heart valve has been implanted. | 07-01-2010 |
20100168839 | PROSTHETIC HEART VALVES - A prosthetic heart valve ( | 07-01-2010 |
20100185277 | COLLAPSIBLE PROSTHETIC HEART VALVES - Prosthetic heart valves, which are collapsible to a relatively small circumferential size for less invasive delivery into a patient and which then re-expand to operating size at an implant site in the patient, include a collapsible/expandable stent-like supporting structure and various components of flexible, sheet-like material that are attached to the supporting structure. For example, these sheet-like other components may include prosthetic valve leaflets, layers of buffering material, cuff material, etc. Improved structures and techniques are provided for securing such other components to the stent-like supporting structure of the valve. | 07-22-2010 |
20110098800 | AXIALLY ANCHORING COLLAPSIBLE AND RE-EXPANDABLE PROSTHETIC HEART VALVES FOR VARIOUS DISEASE STATES | 04-28-2011 |
20110098802 | COLLAPSIBLE AND RE-EXPANDABLE PROSTHETIC HEART VALVE CUFF DESIGNS AND COMPLEMENTARY TECHNOLOGICAL APPLICATIONS - A prosthetic heart valve is provided with a cuff ( | 04-28-2011 |
20120078347 | STENT FEATURES FOR COLLAPSIBLE PROSTHETIC HEART VALVES - A prosthetic heart valve includes a stent having an expanded condition and a collapsed condition. The stent includes a plurality of distal cells, a plurality of proximal cells, a plurality of support struts coupling the proximal cells to the distal cells, and at least one support post connected to a plurality of proximal cells. The proximal cells are longitudinally spaced apart from the distal cells. Various strut configurations and connections of the struts to the proximal cells and of the proximal cells to the support post improve stent flexibility and reduce stress in the valve leaflets. | 03-29-2012 |
20140236292 | Transcatheter Valve Stent Anchors - A stent for use in a prosthetic heart valve has a plurality of expandable and collapsible closed cells, a portion of which form an annulus section adapted for placement within the annulus of the native heart valve. Anchor features of the stent residing within at least some closed cells are adapted to engage tissue of the heart, including native valve leaflets, the sinotubular junction, or another implanted device when the prosthetic valve is implanted in the heart. The anchor features may help to retain the prosthetic valve in position, without interfering with the opening and closing of the valve leaflets. Furthermore, the anchor features may be configured to allow the stent to be resheathed into a delivery device after the portion of the stent with the anchor feature has expanded out of the delivery device. | 08-21-2014 |
20140277389 | RADIOPAQUE TRANSCATHETER VALVE AND ANATOMICAL MARKERS - A prosthetic valve assembly for implantation in a patient's circulatory system includes a stent, a valve member coupled to the stent and defining a preferred landing zone relative to anatomical structures in the patient's circulatory system, and at least one marker positioned in a predetermined relationship relative to the landing zone of the valve member, the marker being visually distinguishable from the stent using an imaging technique. By observing the marker, the prosthetic valve assembly may be implanted in the patient so that certain ones of the anatomical structures lie within the landing zone. | 09-18-2014 |
20150073545 | STENT DESIGNS FOR PROSTHETIC HEART VALVES - A prosthetic heart valve includes a collapsible and expandable stent, a cuff attached to an annulus section of the stent, and leaflets attached to the cuff between a first location and a second location distal to the first location in a flow direction. The stent may include struts shaped to form a plurality of cells connected to one another in annular rows around the stent. The cuff may have top and bottom edges and may occupy a first group of the cells, such that cells above the top edge are open cells at least partially devoid of the cuff. The cuff may have a landing zone extending at least one-third of a length of the stent in the flow direction between the bottom edge of the cuff and a proximal end of a most proximal cell of the open cells when the stent is in an expanded use condition. | 03-12-2015 |
20150073546 | PROSTHETIC HEART VALVES - A prosthetic heart valve (e.g., a prosthetic aortic valve) is designed to be somewhat circumferentially collapsible and then re-expandable. The collapsed condition may be used for less invasive delivery of the valve into a patient. When the valve reaches the implant site in the patient, it re-expands to normal operating size, and also to engage surrounding tissue of the patient. The valve includes a stent portion and a ring portion that is substantially concentric with the stent portion but downstream from the stent portion in the direction of blood flow through the implanted valve. When the valve is implanted, the stent portion engages the patient's tissue at or near the native valve annulus, while the ring portion engages tissue downstream from the native valve site (e.g., the aorta). | 03-12-2015 |