Stent delivery catheter with bumpers for improved retention of balloon expandable stents
First Claim
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1. A catheter for the delivery of a stent comprising:
- an elongated catheter shaft having proximal and distal ends, with an inflation lumen extending therebetween;
an expandable member located proximal to the distal end of the catheter shaft, which is in fluid communication with the inflation lumen; and
a first bumper and a second bumper positioned adjacent to the proximal and distal ends of the expandable member respectively, the bumpers being secured to the catheter shaft, wherein the area between the first and second bumpers form a pocket for receipt of a stent.
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Abstract
An improved balloon catheter which includes bumpers located adjacent to the proximal and distal ends of the catheter balloon. The bumpers form a recessed pocket into which a stent crimped onto the catheter balloon is mounted. The recessed pocket formed by the bumpers securely retains the stent on the balloon and minimizes undesired contact between the stent and arterial walls and lesions during advancement of the stent within a patient'"'"'s vasculature.
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Citations
12 Claims
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1. A catheter for the delivery of a stent comprising:
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an elongated catheter shaft having proximal and distal ends, with an inflation lumen extending therebetween;
an expandable member located proximal to the distal end of the catheter shaft, which is in fluid communication with the inflation lumen; and
a first bumper and a second bumper positioned adjacent to the proximal and distal ends of the expandable member respectively, the bumpers being secured to the catheter shaft, wherein the area between the first and second bumpers form a pocket for receipt of a stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification