A vascular tubular graft of a woven fabric with a single velour outside (external) surface and a smooth interior surface, said outside surface having a plurality of loops, each loop extending around a portion of the circumference thereof and each loop formed by fill yarn positioned about warp yarn.

The invention is directed to a very low-profile dilatation catheter having an inner tubular member with an inner lumen with a diameter of not more than 0.003 inch (0.076 mm) greater than the diameter of a guidewire disposed therein. Preferably, the inner diameter of the tubular member is less than 0.015 inch (0.381 mm). The inner member may be formed of a thin-walled tubing such as polyimide tubing having a wall thickness less than 0.003 inch (0.076 mm). Polyimide tubing is also preferably emplo...

An anatomical model for the testing or demonstration of an intravascular device such as guidewires and dilatation catheters for angioplasty procedures. The model has a plurality of interconnecting passageways simulating the abdominal aorta and a renal artery as well as the left and right iliac and femoral arteries with one or more entry ports therein for the introduction and advancement of intravascular devices into the interconnected passageways.

The present invention provides a vascular biomaterial that includes expanded PTFE and a haemocompatible membrane covalently bonded thereto. Also provided is a process for making the vascular biomaterial that involves chemically modifying the surface of expanded PTFE to provide a surface partially covered with for instance, a hydroxyl moiety, and covalently bonding a haemocompatible membrane to the chemically modified surface of expanded PTFE.

A vascular stent includes at least one filament formed into a wave-like pattern, the filament being wound into a substantially spiral shape; and a device for connecting at least one end of the filament to slide on a another portion of the filament so as to form a hoop at each end of the spiral shape.

A tubular vascular prosthesis with a uniform velour outer layer has an elementary unit of tubing composed of a double velour outer layer, made from polyester yarn, the middle layer, made from two polyester yarns, positioned between two strained polyurethane monofilament yarns and four polyurethane yarn monofilaments, the smooth inner surface and linking of all three layers made of polyester wefts, the between filaments filled with aqueous gelatin-glycerol solution.

Luminal prostheses comprise adjacent expansible segments, typically serpentine ring segments joined by sigmoidal links. By properly orienting the sigmoidal links and aligning hinge regions on adjacent serpentine rings, enhanced performance can be obtained.

A hollow medical needle having a bevel face defining a needle tip and cutting surface that create a first incision. The needle additionally has a separate cutting blade extending outward from the needle. The blade is positioned adjacent the bevel face to create a second incision which intersects the first incision made by the bevel face cutting surface.

This disclosure relates to a vascular connector device which has features that permit the connector device to close a vascular duct and to subsequently permit the vascular duct to be re-opened, if desired. The vascular connector of this disclosure features a tubular shaped vascular connector having a guillotine type plunger arrangement or assembly which can be actuated for first closing and then re-opening the vascular duct, if desired. Also disclosed are two separate clamp mechanisms in the for...

The subject invention concerns vascular prosthetic devices and methods for ascending aorta and/or valve replacement in humans and animals. In one embodiment, a device of the invention includes a vessel-like structure having a first end adapted for surgical attachment to a left ventricle, a second end adapted for surgical attachment to an aorta, and, interposed between the first and second ends, a sinus portion configured in the shape of the sinuses of Valsalva in a human aortic valve.