Stent delivery system
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United States of America Patent
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-
Sep 27, 2011
Grant Date -
Feb 17, 2005
app pub date -
Oct 2, 2002
filing date -
Oct 2, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A stent delivery catheter for rapid exchange carries at its distal end a sleeve (12) to surround a self-expanding stent (10) and a tension wire (30) running the length of the catheter to release the stent by proximal withdrawal of the sleeve. A tubular catheter shaft (62) surrounds the tension wire. An inner catheter (44) defines a guidewire lumen (48) with a proximal guidewire exit part (58) at the distal end of the catheter shaft. The inner catheter carries an abutment (32) to restrain the stent from moving proximally when the sleeve is pulled proximally. There is a gap (74) between the abluminal surface of the inner catheter and the luminal surface of the catheter shaft, in which the tension wire is accommodated.
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