Self-expanding endoprosthesis

Details Self-expanding endoprosthesis Self-expanding endoprosthesis

1997-09-22

1998-12-01

Brittingham, Debra S.

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

Arterial prosthesis

Stent structure

606195, 600 36, A61F 206

Patent

active

058431764

ABSTRACT:
A stent or other endoprosthesis is provided from a single strand of biocompatible and resilient material into which spring coils are formed by winding the strand through in excess of 360.degree.. The thus-formed coil springs are positioned along outside edges of the endoprosthesis, with legs joining the coil springs in order to form a generally zig-zag structure. When the endoprosthesis is compressed for endoluminal delivery, the coil springs allow for large angular deflection between adjoining legs while avoiding plastic deformation of the coil or of the legs.

REFERENCES:
patent: 4425908 (1984-01-01), Simon
patent: 4553545 (1985-11-01), Maass et al.
patent: 4580568 (1986-04-01), Gianturco
patent: 4655771 (1987-04-01), Wallsten
patent: 4830003 (1989-05-01), Wolff et al.
patent: 5275622 (1994-01-01), Lazarus et al.
Duprat et al, "Self-Expanding Metallic Stents for Small Vessels: An Experimental Evolution", Radiology, vol. 162, pp. 469-472, Feb. 1987.

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