Angioplasty stent

Details Angioplasty stent Angioplasty stent

1992-02-05

1993-03-09

Isabella, David

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

Arterial prosthesis

Stent structure

623 12, 604194, 604198, A61F 204

Patent

active

051923076

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: 3774596 (1973-11-01), Cook
patent: 4130904 (1978-12-01), Whalen
patent: 4893623 (1990-01-01), Rosenbluth

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