Angioplasty stent

Details Angioplasty stent Angioplasty stent

1992-10-28

1993-11-30

Isabella, David

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

Arterial prosthesis

Stent structure

623 11, 623 12, 606194, 606195, A61F 206

Patent

active

052660737

ABSTRACT:
A prosthesis for use in preventing re-stenosis after angioplasty is formed of plastic or sheet metal, and is expandable and contractible for placement. The prosthesis can be inserted while in a collapsed position, then expanded and locked at the larger diameter. Spring force can be provided by the material itself, or metal springs can be embedded within the walls of the prosthesis. Preferably, the walls have holes therethrough to promote tissue growth; and, in one embodiment, the holes are in the form of slots so that the prosthesis is segmented and can bend longitudinally.

REFERENCES:
patent: 4140126 (1979-02-01), Choudhury
patent: 4800882 (1989-01-01), Gianturco
patent: 4944740 (1990-07-01), Buchbinder et al.
patent: 4969890 (1990-11-01), Sugita et al.
patent: 5102417 (1992-04-01), Palmaz

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