Brachytherapy guide catheter
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United States of America Patent
Stats
-
Apr 10, 2001
Grant Date -
N/A
app pub date -
Jul 22, 1999
filing date -
Jul 22, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A guide catheter includes a body and a centering mechanism. The body has an elongatable section and a lumen with a stop. The centering mechanism is a plurality of bias elements that forms a self-expanding basket attached to the body so that the elongatable section is within the basket. A straightening catheter engages the stop to stretch the elongatable section and to flatten the basket against the body. The guide catheter can be inserted into a vessel and the centering mechanism can be positioned at a desired treatment site by means of an over-the-wire guidewire system. The straightening catheter can be removed to allow the self-expanding basket to center the guide catheter in the vessel. A dosing device can then be inserted into the guide catheter and located at the centered basket to deliver the brachytherapy to prevent restenosis.
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