Dilatation catheter with eccentric balloon
First Claim
Patent Images
1. A balloon dilatation catheter which comprises:
- a catheter shaft defining a first, inflation lumen and a second lumen, each of said first and second lumens having proximal and distal ends, andan inflatable dilatation balloon having proximal and distal ends,wherein the distal end of said first lumen opens into and is in fluid communication with the interior of the dilatation balloon and the second lumen extends longitudinally with the first lumen, the proximal end of the second lumen being adjacent to the proximal end of the first lumen, the distal end of the second lumen being open and distal to the distal end of the first lumen, the section of the second lumen distal to the proximal end of the dilatation balloon being exterior to the dilatation balloon, the distal end of the second lumen being open and distal to the distal end of the dilatation balloon, and the second lumen being sufficiently linear to allow the catheter to be slidingly advanced over a guidewire.
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Abstract
This invention relates to a balloon dilatation catheter. The balloon dilatation catheter comprises a first, inflation lumen extending therethrough and having distal and proximal ends, the distal end of the first lumen opening into and being in fluid communication with the interior of an inflatable dilatation balloon having distal and proximal ends, and a second lumen extending coextensively with and exterior to the dilatation balloon.
124 Citations
44 Claims
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1. A balloon dilatation catheter which comprises:
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a catheter shaft defining a first, inflation lumen and a second lumen, each of said first and second lumens having proximal and distal ends, and an inflatable dilatation balloon having proximal and distal ends, wherein the distal end of said first lumen opens into and is in fluid communication with the interior of the dilatation balloon and the second lumen extends longitudinally with the first lumen, the proximal end of the second lumen being adjacent to the proximal end of the first lumen, the distal end of the second lumen being open and distal to the distal end of the first lumen, the section of the second lumen distal to the proximal end of the dilatation balloon being exterior to the dilatation balloon, the distal end of the second lumen being open and distal to the distal end of the dilatation balloon, and the second lumen being sufficiently linear to allow the catheter to be slidingly advanced over a guidewire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A balloon dilatation catheter which comprises:
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a catheter shaft defining a first, inflation lumen and a second lumen, each of said first and second lumens having proximal and distal ends, and an inflatable dilatation balloon having proximal and distal ends, wherein the distal end of the first lumen opens into and is in fluid communication with the interior of the dilatation balloon, the proximal end of the second lumen being open and being located substantially distal to the proximal end of the first lumen, the section of the second lumen distal to the proximal end of the dilatation balloon being exterior to the dilatation balloon, the distal end of the second lumen being open and distal to the distal end of the dilatation balloon, and the second lumen being sufficiently linear to allow the catheter to be slidingly advanced over a guidewire. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A balloon dilatation catheter which comprises
a first, inflation lumen extending therethrough and having distal and proximal ends, the distal end of said first lumen opening into and being in fluid communication with the interior of an inflatable dilatation balloon having distal and proximal ends, and a second lumen extending coextensively with the first lumen, having proximal and distal ends, wherein the proximal end of the second lumen is adjacent to the proximal end of the first lumen, the distal end of the second lumen is open and distal to the distal end of the balloon, and wherein the distal section of the second lumen is exterior to the balloon and has an opening proximal, adjacent, or distal to the proximal end of the dilatation balloon, and the section of the second lumen distal to the opening is enlarged as compared to the proximal section of the second lumen.
Specification