Catheter support for stent delivery
DCFirst Claim
1. A stent delivery catheter comprising:
- an inner shaft, the inner shaft having a proximal portion and a distal portion and a center axis,an inflatable medical balloon positioned about the distal portion of the inner shaft, the medical balloon having an expanded state, a contracted state, a proximal end and a distal end, wherein the medical balloon can be expanded from its contracted state to its expanded state, andat least one mounting body secured to the inner shaft, inside the medical balloon and around the center axis, the mounting body having a length, a circumferential surface, wherein the circumferential surface is a surface of the mounting body that is outermost relative to the center axis and that faces radially away from the center axis and toward the medical balloon, and having at least one separation in the circumferential surface, wherein the at least one separation is exposed to a portion of the medical balloon which is located along a radial line which extends from the center axis and through the separation, the at least one separation being a circumferential separation, wherein the mounting body is formed of a material which resiliently deforms under radial pressure.
1 Assignment
Litigations
1 Petition
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.
115 Citations
20 Claims
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1. A stent delivery catheter comprising:
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an inner shaft, the inner shaft having a proximal portion and a distal portion and a center axis, an inflatable medical balloon positioned about the distal portion of the inner shaft, the medical balloon having an expanded state, a contracted state, a proximal end and a distal end, wherein the medical balloon can be expanded from its contracted state to its expanded state, and at least one mounting body secured to the inner shaft, inside the medical balloon and around the center axis, the mounting body having a length, a circumferential surface, wherein the circumferential surface is a surface of the mounting body that is outermost relative to the center axis and that faces radially away from the center axis and toward the medical balloon, and having at least one separation in the circumferential surface, wherein the at least one separation is exposed to a portion of the medical balloon which is located along a radial line which extends from the center axis and through the separation, the at least one separation being a circumferential separation, wherein the mounting body is formed of a material which resiliently deforms under radial pressure. - View Dependent Claims (2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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4. The stent delivery catheter of 2, wherein the plurality of separations form a plurality of linearly positioned separate rings, the stent delivery catheter further comprising a wire extending through and attached to the linearly positioned separate rings.
Specification