Catheter support for stent delivery
First Claim
1. A stent delivery catheter comprising:
- an inner shaft having a proximal portion and a distal portion;
an inflatable balloon positioned about the distal portion of the inner shaft, the inflatable balloon having a stent mounting region;
a first stop member positioned exteriorly to the inner shaft and interiorly to the inflatable balloon, the first stop member having a proximal end and a distal end and at least a portion of the first stop member having a generally conical shape, the cross section of the proximal end being larger than the cross section of the distal end, wherein the first stop member is positioned distally to the stent mounting region of the inflatable balloon; and
at least one mounting body having a first position and a second position axially offset from the first position, the at least one mounting body moveable between the first position and the second position;
in the first position, the at least one mounting body being positioned inside the inflatable balloon, exteriorly to the inner shaft, and proximally to the stent mounting region.
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Accused Products
Abstract
An angioplasty and stent delivery system to facilitate introduction and placement of a stent, including a catheter having an expandable distal portion constructed and arranged for expanding the outer diameter of the catheter from a contracted state to an expanded state: a stent positioned around the distal portion of the catheter having a contracted condition and being expandable to an expanded condition, and being sized in the contracted condition to closely surround the catheter in the contracted state, the expandable distal portion of the catheter including a balloon within which or over which there is included on a catheter shaft at least one axially movable or enlargeable body of a diameter larger than the catheter shaft to which the stent and balloon are fitted, as by crimping, for holding the stent in place until it is released therefrom by expansion of the balloon.
114 Citations
13 Claims
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1. A stent delivery catheter comprising:
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an inner shaft having a proximal portion and a distal portion; an inflatable balloon positioned about the distal portion of the inner shaft, the inflatable balloon having a stent mounting region; a first stop member positioned exteriorly to the inner shaft and interiorly to the inflatable balloon, the first stop member having a proximal end and a distal end and at least a portion of the first stop member having a generally conical shape, the cross section of the proximal end being larger than the cross section of the distal end, wherein the first stop member is positioned distally to the stent mounting region of the inflatable balloon; and at least one mounting body having a first position and a second position axially offset from the first position, the at least one mounting body moveable between the first position and the second position; in the first position, the at least one mounting body being positioned inside the inflatable balloon, exteriorly to the inner shaft, and proximally to the stent mounting region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A catheter comprising:
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an inner shaft having a proximal portion and a distal portion; an inflatable balloon positioned about the distal portion of the inner shaft; a mounting body within the balloon, the mounting body disposed exteriorly to the inner shaft and movable relative to the inner shaft; a pull wire extending from the mounting body, a stent disposed about the balloon and mounting body. - View Dependent Claims (13)
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Specification