Catheter with expandable wire mesh tip
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United States of America Patent
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-
Aug 5, 1997
Issued Date -
N/A
app pub date -
May 25, 1995
filing date -
Jun 26, 1992
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A catheter for use in angioplasty and other medical procedures is disclosed. The catheter features a flexible-wire mesh tip movably attached at a distal end of the catheter, the tip being expandable from a contracted position which it is first in when the catheter is deployed inside the lumen of a vessel, to stretch open the lumen and eliminate a flow obstruction therein, such as is caused by plaque deposits; the tip subsequently being returnable to its contracted position inside the catheter when the catheter is withdrawn from the lumen of the vessel. Radio frequency energy may additionally be used to weld the source of the flow obstruction to the wall of the lumen leaving a conduit of sufficiently expanded diameter to allow resumption of normal flow in the vessel.
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