Method for manufacturing yarn for vessel stent

Details Method for manufacturing yarn for vessel stent Method for manufacturing yarn for vessel stent

2006-06-27

2006-06-27

Bui, Vy Q. (Department: 3731)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Arterial prosthesis

Stent structure

C623S001180

Reexamination Certificate

active

07066952

ABSTRACT:
A stent for a vessel implanted in the vessel of the living body including a main body portion of the stent formed into a tube by a yarn formed of a biodegradable polymer exhibiting a shape memory function. The main body portion of the stent is shape-memorized to a size that can be inplanted in the vessel. The main body portion of the stent is implanted in the vessel of the living body as it is contracted in diameter by an external force, and is enlarged in diameter by being heated with the temperature of the living body. The main body portion of the stent is formed by winding a yarn formed of a biodegradable polymer in a tube form as the yarn is bent in a zigzag design. The main body portion of the stent is enlarged or contracted in diameter with the bends of the yarn as the displacing portions.

REFERENCES:
patent: 5160341 (1992-11-01), Brenneman et al.
patent: 5762625 (1998-06-01), Igaki
patent: 5763098 (1998-06-01), Kameoka et al.
patent: 6053940 (2000-04-01), Wijay

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