Apparatus and method for retaining a catheter in a blood vessel in a fixed position
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United States of America Patent
Stats
-
Jun 6, 2000
Issued Date -
N/A
app pub date -
Jun 7, 1995
filing date -
Mar 2, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for retaining a catheter tip in a fixed position within a blood flow and preventing it from contacting a blood vessel wall. The apparatus includes a tip retainer at the distal end of the catheter that anchors the tip of the catheter within the blood vessel. The catheter tip is retained within the blood vessel spaced from the wall to ensure that it does not contact the wall of the blood vessel. This reduces damage to the blood vessel caused by chronic movement and contact between the catheter tip and the wall of the blood vessel. In one embodiment, the tip retainer includes a prong that penetrates the wall of the blood vessel, thus preventing the catheter tip from moving longitudinally within the blood vessel. In alternative embodiments, the tip retainer contacts the wall but does not penetrate the wall.
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