Controllable flexibility catheter
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United States of America Patent
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Apr 18, 1989
Issued Date -
N/A
app pub date -
Mar 16, 1988
filing date -
Aug 14, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A guiding catheter 40 of variable, operator-controlled flexibility to be used in the performance of a percutaneous translumenal coronary angioplasty procedure is described which includes an elongate housing 42 suitable for insertion into an artery, as well as an operator-controlled variable stiffener coupled to the distal aspect of the catheter to permit the operator performing the angioplasty procedure to increase the rigidity of the catheter. In a preferred embodiment the stiffening apparatus consists of a balloon 50 extending longitudinally along the distal end of the catheter to allow increases in rigidity of the distal end as desired by the operator. Increasing the rigidity of the guiding catheter, once installed within the coronary ostium, precludes disengagement of the guiding catheter, thus expediting the performance and enhancing the safety of the procedure.
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