Reversibly deformable corneal implants for replacing excised corneal tissue, the implants including an optical portion and an anchoring portion having different mechanical properties from each other.

A radially expandable, tubular stent, includes a first section having a first crush resistance force and a second section have a second crush resistance force, wherein the first crush resistance force is less than the second crush resistance force. The first section is connected to the second section to form a tube, connection of the first and second sections extending in an axial direction of the tube.

The invention relates to a medical device and a method of using it. The device is a stent which can be percutaneously deliverable with (or on) an endovascular catheter or via other surgical or other techniques and then expanded. The stent is configured to have a central portion defined by “open” cells and at least two end portions, defined by “closed” cells, spaced apart and directly connected to the distal and proximal ends of the central portion of the stent. The stent may also optionally have a covering or a lattice with openings.

An intraluminal prosthesis includes a stent architecture having a series of stent elements repeating along a circumferential axis. One series of stent elements includes v-shaped stent elements having at least four different orientations, and V-shaped stent elements connecting adjacent v-shaped stent elements. One series of stent elements includes R-shaped stent elements having at least four different orientations, and U-shaped stent elements having at least two different orientations, the U-shaped stent elements connecting adjacent R-shaped stent elements. Adjacent series of stent elements can be connected by connectors. Portions of the stent elements may narrow in width along a length thereof. The stent architecture may include radiopaque element receiving members. The stent architecture may be formed by machining a metal or polymer tube. The intraluminal prosthesis may include one or more graft layers.

A stabilized fabric composed of a mesh or a woven fabric is disclosed as are methods of their manufacture, the manufacture of medical devices made using a stabilized fibers and stabilized medical devices are all disclosed. Fabrics can be stabilized by several techniques including: using mechanical, chemical and/or energetic fasteners at warp and weft intersections in the weave; by using various weaving techniques and fibers. Meshes can be stabilized when properly dimensioned and arranged junctions and struts of the necessary properties are used. All of these stabilized fabrics can be made of synthetic polymer materials such as ultrahigh molecular weight PE or PP and expanded PTFE.

An implantable soft tissue prosthesis device comprising a silicone elastomer-shell filled with silicone gel or liquid, which among the layers that constitute its shell includes a barrier layer formed of a low permeability silicone, which impedes the bleeding or diffusion of the silicone gel from the inside of the implant to its surroundings through the shell. This barrier layer is given a coloration different to the other layers of the shell, making it visible in the finished product. The coloration of the barrier layer gives the fabricator of the implant as well as to medical personnel, the possibility to identify the presence of the barrier layer and its homogeneity, improving the safety of the device.

In a representative embodiment, a method comprises implanting first and second inflatable bodies within an annulus of a native heart valve by securing the inflatable bodies to tissue of the native heart valve with sutures, and implanting a prosthetic heart valve between the inflatable bodies such that the prosthetic heart valve is retained within the annulus by the inflatable bodies.

An exemplary ophthalmic lens includes an optic comprising an anterior optic surface and a posterior optic, and a multi-curvature optical edge surrounding the optic and connecting the anterior optic surface to the posterior optic surface, the multi-curvature optical edge comprising a plurality of tangentially-connected curved surfaces configured to mitigate positive dysphotopsia by directing or diffusing from light incident on the multi-curvature optical edge away from a fovea of a patient.

A prosthesis is implanted subcutaneously within a human penis, the prosthesis forming sides of an elongated longitudinal modified cylindrical shape, the sides hinged along a common abutment therebetween. A sheath is mounted around the prosthesis' wall and a net sheeting is imbedded under the surface of the prosthesis' wall providing a means to secure the sides; restraining them to further secure a corpora cavernosa around the prosthesis is placed. When the penis is erect it grows in girth thereby causing the sides to diverge, forcing a press-rib against a deep dorsal vein of the penis, which results in restricting blood flow and maintaining erectile rigidity and duration.

A medical device, having a body that is tubular at least in some sections. The body can be transferred from a compressed state into an expanded state and has a circumferential wall having at least one first lattice structure and one second lattice structure. The first lattice structure and the second lattice structure form separate layers of the circumferential wall, which are arranged coaxially one inside the other and connected to each other at least at points in such a way that the first lattice structure and the second lattice structure can be moved relative to each other at least in some sections. A system having such a device is also disclosed.