초록 ▼

A stent for the anastomosis of a vessel comprises an integral solid of biologically compatible material which is adapted to melt from a solid into a fluid in response to heat energy or body temperature into the fluid which flows through the vessel. Preferably the stent is formed of frozen material,

A stent for the anastomosis of a vessel comprises an integral solid of biologically compatible material which is adapted to melt from a solid into a fluid in response to heat energy or body temperature into the fluid which flows through the vessel. Preferably the stent is formed of frozen material, and has a temperature which is substantially less than the temperature of the vessel upon insertion. Upon melting, the biologically compatible material naturally integrates with the fluid normally conducted by the vessel. The stent may be advantageously formed of frozen blood plasma or other blood fluid which is compatible with the blood normally conducted by an artery or a vein. When used in conjunction with thermal bonding techniques, the stent aligns the ends of the vessel for thermal bonding without the necessity for taking the time-consuming circumferentially-spaced stay sutures. The thermal mass and temperature of the stent protects the inner coating, the tuncia intima, from substantial damage from the heat applied during thermal bonding.

대표청구항 ▼

A stent for insertion into the interior of the ends of a tubular vessel in a living being to align the ends of the vessel and support the vessel during anastomosis, comprising an integral solid of a biological fluid material adapted to melt into a fluid which is biologically compatible and naturally

A stent for insertion into the interior of the ends of a tubular vessel in a living being to align the ends of the vessel and support the vessel during anastomosis, comprising an integral solid of a biological fluid material adapted to melt into a fluid which is biologically compatible and naturally integrable with that fluid which normally flows through the vessel, said stent having a predetermined temperature substantially less than the temperature of the vessel upon insertion into the vessel.