An aortic valve implantation device that is delivered through a catheter and does not depend only on friction for fixation. In this device, multiple supporting arms (50) are provided on an intermediate portion (102) of a tubular body (105). The supporting arms are “D”-shaped after fully expansion, and are affixed between a narrowest part (73) of the aorta close to the heart and a narrowest part (74) on an aortic annulus (70), so as to achieve sufficient match between the outer surfaces of the support arms (50) and surrounding tissues; Each supporting arm (50) has three landing areas (54) and two bending sections (59). This device can accurately control the position of a valve to be released on the aortic annulus (70).

A 3-D honeycomb textile can include a textured yarn. The textile can exhibit a heat-shrinkage rate from about 10% to about 60%. The textile can be configured to reversibly change its dimensions under application of stress. Prosthetic valves can have the disclosed textiles as a sealing member. Additionally, prosthetic valves can the disclosed textiles as cushion materials. In addition, methods of making the disclosed textiles and prosthetic valves are described.

A prosthetic implant with improved properties, suitable for implantation to the human body, comprising a composite comprising a base material and a plurality of additives, wherein the additives are selected from radiolucent additives and/or hyperechoic additives; or wherein the additives are selected to reduce the solvent concentration by between 5%-95%; or wherein the additives are selected to increase the elastic modulus by more than 20%; or wherein the additives are selected for combining these effects.

The present invention relates to an implantable endoluminal graft comprised of a microporous thin-film metal covering having a plurality of openings and a structural support element underlying and physically attached to the microporous thin-film metal covering, the microporous thin-film metal covering having shape memory properties.

Provided is a stent pusher assembly for positioning a ureteral stent, the stent pusher assembly having an inner and outer stent pusher. The stent pusher assembly positions the ureteral stent in a patient's kidney and bladder without a bladder fixing portion of the stent entering a ureteral passage-way, thereby minimizing irritation to the patient.

In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.

A modular heart valve prosthesis includes a first heart valve device and a second heart valve device. The first heart valve device includes a first valve support including a first prosthetic valve disposed within the valve support, and an anchoring frame surrounding the first valve support and coupled to the first valve support. The first prosthetic valve includes synthetic fabric leaflets having a first thickness. The second heart valve device includes a second valve support including a second prosthetic valve disposed within the second valve support. The second prosthetic valve includes tissue leaflets having a second thickness, wherein the second thickness is greater than the first thickness. In a first configuration, the second heart valve device is separate from the first heart valve device, and in a second configuration, the second heart valve device is disposed within the first valve support of the first heart valve device.

A transcatheter valve prosthesis includes a stent and a prosthetic valve. The stent is mechanically or balloon expandable. The stent has an inflow portion and an outflow portion. The inflow portion includes a plurality of side openings defined by a plurality of crowns and a plurality of struts. The outflow portion has three circumferentially spaced apart commissure posts. The prosthetic valve is disposed within and secured to at least the outflow portion of the stent. The prosthetic valve is configured to block blood flow in one direction to regulate blood flow through a central lumen of the stent. The commissure posts are configured to flex or bend flex radially inwardly to reduce stresses observed during valve loading and thereby improve or increase tissue durability of the prosthetic valve.

Examples herein include prosthetic valves, valve leaflets and related methods. In an example, a prosthetic valve is included having a plurality of leaflets. The leaflets can each have a root portion and an edge portion substantially opposite the root portion and movable relative to the root portion. The leaflets can include a fibrous matrix including polymeric fibers having an average diameter of about 10 nanometers to about 10 micrometers. A coating can surround the polymeric fibers within the fibrous matrix. The coating can have a thickness of about 3 to about 30 nanometers. The coating can be formed of a material selected from the group consisting of a metal oxide, a nitride, a carbide, a sulfide, or fluoride. In an example, a method of making a valve is included. Other examples are also included herein.

The embodiments of the present disclosure provide an interventional valve stent and an aortic valve. The interventional valve stent may include a valve stent defining a frame lumen. The valve stent may include straight rods connecting an upstream port and a downstream port, and oblique rods connected between the straight rods. An upstream section, a midstream section, and a downstream section may be sequentially formed along a direction from the upstream port to the downstream port. When the valve stent expands from a compressed state to an expanded state, an expansion strain provided by the oblique rods located in the midstream section to a circumferential direction of the valve stent may be greater than an expansion strain provided by the oblique rods located in the upstream section and/or the downstream section to the circumferential direction of the valve stent to compensate for a rate difference between a rate of circumferential expansion of the midstream section and a rate of circumferential expansion of the upstream section and/or a rate of circumferential expansion of the downstream section.