Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Stent structure
Patent
1998-04-24
1999-08-03
Willse, David H.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arterial prosthesis
Stent structure
623 12, 606151, A61F 206
Patent
active
059318678
ABSTRACT:
A radially expandable support structure for holding open lumina within a body, especially in a blood vessel, has a tube-shaped body with a wall surface extending between a first and a second end which is formed from elongate members connected to each other. The elongate members include a first group of members which extend essentially in a longitudinal direction of the tube-shaped body, such that adjacent members of this first group are connected in pairs to each other at their ends to form a member pair which encloses a slit. These member pairs are connected approximately in the middle of their longitudinal extension to member pairs arranged adjacent to each other in a circumferential direction of the tube-shaped body to form a ring which surrounds the longitudinal axis of the tube-shaped body, and several rings connected to each other at the ends of the slits are arranged along the longitudinal axis of the tube-shaped body. In order to greatly decrease a reduction in length during the expansion of the support structure, the rings are connected to each other by a second group of elongate members, and each slit of a respective ring, as seen in the circumferential direction of the tube-shaped body, is arranged with a part of its length next to two respective slits of an adjacent ring, so that the slits of adjacent rings overlap.
REFERENCES:
patent: 5697971 (1997-12-01), Fischell et al.
patent: 5728131 (1998-03-01), Frantzen et al.
patent: 5755776 (1998-05-01), Al-Saadon
patent: 5776183 (1998-07-01), Kanesaka et al.
Jackson Suzette J.
W.C. Heraeus GmbH
Willse David H.
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