Catheter tip retainer
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United States of America Patent
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Jun 23, 1998
Issued Date -
N/A
app pub date -
Mar 28, 1997
filing date -
Mar 2, 1992
priority date (Note) -
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status (Latency Note)
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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 stabilizes the tip of the catheter relative to 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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