05064435 is referenced by 1083 patents and cites 15 patents.

A body implantable stent consists of two or more generally tubular, coaxial and slidably connected stent segments. Each of the stent segments is of open weave construction, formed of multiple braided, helically wound strands of resilient material. The stent is elastically deformed to a reduced radius when deployed. When released after positioning, the stent self-expands radially into contact with a tissue wall segment defining a blood vessel or other body cavity. As each stent segment expands radially, it contracts in the axial direction. To preserve a consistent length of the stent in spite of axial contraction of the segments, the axially outward and non-overlapping portions of the stent can be designed for secure fixation to the tissue wall segment, for example as radially outward flares. Accordingly, axial contraction occurs as a reduction in the length of the medial regions where adjacent stent segments overlap. Alternative approaches to maintain axial length include the addition of reinforcing filaments near the stent opposite ends to increase the restoring force, the provision of fixation hooks at opposite ends of the stent, and securing an elongate, axially directed, flexible and inextensible wire to the opposite ends of the stent.

Title
Self-expanding prosthesis having stable axial length
Application Number
7/544923
Publication Number
5064435
Application Date
June 28, 1990
Publication Date
November 12, 1991
Inventor
Christopher H Porter
Woodenville
WA, US
Agent
Haugen and Nikolai
Assignee
Schneider
MN, US
IPC
A61F 2/04
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