Guide wire extension system
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United States of America Patent
Stats
-
Dec 11, 2001
Issued Date -
N/A
app pub date -
May 31, 2000
filing date -
Oct 16, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An extendable, guide wire providing an apparatus for effecting exchange of over-the-wire catheters without requiring either a double length guide wire or the addition of an extension guide wire. The guide wire includes a distal member for insertion into the patient and a proximal member for extension from the patient, the proximal member having at least one wire strand coiled into a shorten, compressed state. If a catheter exchange is required, the proximal member coil is irreversibly lengthened by drawing the coil proximally, significantly extending the length of the proximal member. Catheter withdrawal and advancement can follow the lengthening. A sheath adapted to slide over and strengthen the drawn wires prior to catheter exchange is also provided.
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