Self expanding stent delivery system with balloon
First Claim
1. An endoluminal prosthesis delivery system comprising:
- a delivery catheter comprising;
an elongate member having an inflatable member located on a distal portion of the elongate member and an inflation lumen extending through the elongate member and configured to deliver an inflation medium to the inflatable member to inflate the inflatable member;
an endoluminal prosthesis comprising;
a self-expanding tubular member having a first radially compressed configuration and a second expanded configuration, wherein the self-expanding tubular member is loaded in the catheter in the first radially compressed position over the inflatable member; and
a restraining member configured to restrain the self expanding tubular member in the first radially compressed configuration over the inflatable member, wherein the restraining member is actuable to release the self expanding tubular member to expand to the second expanded configuration, and wherein the inflatable member is configured to inflate inside the self expanding tubular member when in the second expanded configuration.
1 Assignment
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Accused Products
Abstract
A self-expanding stent delivery system and method is provided where the self-expanding stent is loaded in a catheter and is held in a collapsed position over a balloon. The stent is deployed and then the balloon may be used for post-dilitation. After the stent is released the balloon is substantially aligned in position for post-dilitation. In one embodiment, the balloon working length is substantially the same as the deployed stent length so that balloon dilitation outside the length of the stent and potential healthy tissue damage is minimized. In another embodiment, the balloon working length is shorter than the deployed stent length and the post dilitation is accomplished by positioning and inflating the balloon in a plurality of iterations.
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Citations
21 Claims
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1. An endoluminal prosthesis delivery system comprising:
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a delivery catheter comprising;
an elongate member having an inflatable member located on a distal portion of the elongate member and an inflation lumen extending through the elongate member and configured to deliver an inflation medium to the inflatable member to inflate the inflatable member;
an endoluminal prosthesis comprising;
a self-expanding tubular member having a first radially compressed configuration and a second expanded configuration, wherein the self-expanding tubular member is loaded in the catheter in the first radially compressed position over the inflatable member; and
a restraining member configured to restrain the self expanding tubular member in the first radially compressed configuration over the inflatable member, wherein the restraining member is actuable to release the self expanding tubular member to expand to the second expanded configuration, and wherein the inflatable member is configured to inflate inside the self expanding tubular member when in the second expanded configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An endoluminal prosthesis delivery system comprising:
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a delivery catheter means for delivering an endoluminal prosthesis to the inner circumference of a body lumen, the catheter means comprising;
an elongate means having an inflatable means for dilitating located on a distal portion of the elongate means and means for inflating the inflatable means;
an endoluminal prosthesis means comprising;
a self-expanding means having a first radially compressed configuration and a second expanded configuration, wherein the self-expanding means is loaded in the catheter means in the first radially compressed position over the inflatable means; and
a releasable restraining means for restraining the self expanding means in the first radially compressed configuration over the inflatable means, and releasing the self expanding means to expand to the second expanded configuration, and wherein the inflatable means is configured to inflate within the self expanding means when in the second expanded configuration. - View Dependent Claims (9, 10, 11, 12)
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13. A method of deploying and endoluminal prosthesis comprising the steps of:
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providing an endoluminal prosthesis delivery system comprising;
a delivery catheter comprising;
an elongate member having an inflatable member located on a distal portion of the elongate member and an inflation lumen extending through the elongate member and configured to deliver an inflation medium to the inflatable member to inflate the inflatable member;
an endoluminal prosthesis comprising;
a self-expanding tubular member having a first radially compressed configuration and a second expanded configuration, wherein the self-expanding tubular member is loaded in the catheter in the first radially compressed position over the inflatable member; and
a restraining member configured to restrain the self expanding tubular member in the first radially compressed configuration over the inflatable member, wherein the restraining member is actuable to release the self expanding tubular member to expand to the second expanded configuration, and wherein the inflatable member is configured to be inflated to dilitate the self expanding tubular member when in the second expanded configuration;
locating the distal portion of the catheter at a site for deployment of the endoluminal prosthesis;
releasing the endoluminal prosthesis from the restraining member; and
expanding the inflation member to secure the endoluminal prosthesis in place. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification