Radially expansible vessel scaffold having beams and expansion joints
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United States of America Patent
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Aug 5, 2003
Grant Date -
N/A
app pub date -
Nov 12, 1997
filing date -
Jun 5, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides improved prostheses and methods for their endolumenal placement within body lumens, particularly blood vessels. In one embodiment, the prosthesis of the present invention having a plurality of radially expansible rings having, a plurality of beams connecting axially remote points on adjacent rings, and a plurality of expansion joints connecting axially proximate points on adjacent rings. The beams maintain the remote points at a fixed distance when the prosthesis is radially expanded and the expansion joints allow for relative movement of the proximate points during delivery of the prosthesis. The combination of the beams and expansion joints minimizes the risk of injury to the body lumen during delivery of the prosthesis to a target site and provides improved tracking capabilities.
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