摘要:
A prosthetic heart valve includes a base and a plurality of polymeric leaflets. Each leaflet has a root portion coupled to the base, and each leaflet has an edge portion substantially opposite the root portion and movable relative to the root portion to coapt with a respective edge portion of at least one of the other leaflets of the plurality of leaflets. Each leaflet includes) at least two polymers along at least one portion of the leaflet, and each leaflet has a composition gradient of each of the at least two polymers along at least one portion of the leaflet.
摘要:
Medical devices and methods for manufacturing and using medical devices. An example medical device includes a core member, a tubular member coupled to the core member, and a tip member coupled to the tubular member. The tubular member may have a plurality of slots formed therein. The tip member may include a polymeric material. An intermediate member may be disposed between the tubular member and the core member that aids the bonding of the tip member thereto.
摘要:
Intravascular filters can include a filter membrane having a hydrophilic polymer coating on the filter membrane. The hydrophilic polymer coating can be on an inner surface, an outer surface or both an inner surface and an outer surface of the filter membrane. Intravascular filters including a hydrophilic polymer coating may be considered as providing increased hemocompatibility, decreased risk of filter-induced thrombosis and reduced sheathing forces.
摘要:
One or more embodiments of the present disclosure include a closure device, a method of making the closure device and a system that includes the closure device for closing an opening in a body lumen. The closure device includes an intravascular anchor for positioning in the body lumen, a suture coupled to the intravascular anchor, the suture to pass through the opening in the body lumen, a fastener joined to the suture, where the fastener moves longitudinally along the suture, and a plug having a first plug segment and a second plug segment. In one or more embodiments, the second plug segment has a hardness greater than the first plug segment, where the suture passes through the plug with the first plug segment between the intravascular anchor and the second plug segment and the second plug segment between the first plug segment and the fastener.
摘要:
An embolic protection filter and method of making the same. An embolic protection filter may include a filter membrane or material having a plurality of holes. In some embodiments, the filter membrane may be manufactured by spray coating a filter material onto a forming member or spray mold.
摘要:
Medical devices and methods for making and using the same are disclosed. An example medical device may include a guidewire. The guidewire may include an elongate shaft. The shaft may include a porous metal alloy. The porous metal alloy may be arranged so that the porous metal alloy has a first pore distribution along a first portion of the shaft and a second pore distribution different from the first pore distribution along a second portion of the shaft.
摘要:
Disclosed are implantable medical devices with enhanced patency. Expanded polytetrafluoroethylene small caliber vascular grafts coated with polymer bound bio-active agents that exhibit enhanced patency are disclosed. The polymer bound bio-active agents can include anti-thrombogenic agents, antibiotics, antibacterial agents and antiviral agents. Methods of preparing same are also provided.
摘要:
This invention relates to an embolization device for occluding a vessel. This device includes a matrix made of a biocompatible and biopolymeric material and a radiopaque material, wherein the radiopaque material is interspersed in the biocompatible and biopolymeric material. The matrix can adopt a linear extended form or a folded relaxed form.
摘要:
An embolic protection filter having an improved filter frame and method of making the same. In at least some embodiments, the present invention includes an embolic protection filter coupled to an elongate shaft. The filter may include a filter frame assembly having one or more frame members. The frame members may include a filter mouth defining portion.
摘要:
Disclosed are implantable medical devices with enhanced patency. Expanded polytetrafluoroethylene small caliber vascular grafts coated with polymer bound bio-active agents that exhibit enhanced patency are disclosed. The polymer bound bio-active agents can include anti-thrombogenic agents, antibiotics, antibacterial agents and antiviral agents. Methods of preparing same are also provided.