Prothesis and deployment catheter for treating vascular bifurcations
First Claim
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1. A prosthesis and deployment catheter system for treating an opening from a main body lumen to a branch body lumen, the prosthesis comprising:
- a radially expansible support, the support configured to be deployed in at least a portion of the branch body lumen;
a plurality of fronds extending axially from either a proximal or distal end of the support, the fronds being configured to be positioned across the ostium and into the main body lumen; and
at least one circumferential link connecting at least a first frond to a second frond, the circumferential link spaced axially apart from the support;
wherein the prosthesis is mounted on a balloon catheter such that the radially expansible support is carried by a first portion of a balloon that is inflatable to a first diameter and the circumferential link is carried by a second portion of a balloon that is inflatable to a second diameter that is larger than the first diameter.
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Abstract
A stepped balloon catheter prosthesis deployment system is disclosed for placement of a prosthesis across an Os opening from a main body lumen to a branch body lumen. The prosthesis comprises a radially expansible support at one end, a circumferentially extending link at the other end and at least one frond extending axially therebetween. The prosthesis is configured to be deployed from a stepped diameter balloon with the support in the branch body lumen, with the circumferentially extending link in the main lumen and the frond extendable across the Os.
325 Citations
43 Claims
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1. A prosthesis and deployment catheter system for treating an opening from a main body lumen to a branch body lumen, the prosthesis comprising:
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a radially expansible support, the support configured to be deployed in at least a portion of the branch body lumen; a plurality of fronds extending axially from either a proximal or distal end of the support, the fronds being configured to be positioned across the ostium and into the main body lumen; and at least one circumferential link connecting at least a first frond to a second frond, the circumferential link spaced axially apart from the support; wherein the prosthesis is mounted on a balloon catheter such that the radially expansible support is carried by a first portion of a balloon that is inflatable to a first diameter and the circumferential link is carried by a second portion of a balloon that is inflatable to a second diameter that is larger than the first diameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A prosthesis and deployment system assembly, comprising:
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an elongate, flexible catheter body; a balloon on the body, the balloon having an inflated profile with a first section having a first diameter, a second section having a second diameter, and a balloon transition in between the first and second sections; and a prosthesis having an inner surface, the entire inner surface carried on the balloon, the prosthesis comprising a first frond, a second frond, and a circumferential link comprising at least one filament coupling the first frond to the second frond; wherein the prosthesis has a wall having a first wall pattern adjacent the first section of the balloon, and a second wall pattern adjacent the balloon transition. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A prosthesis and deployment catheter system for treating an opening from a main body lumen to a branch body lumen, the prosthesis comprising:
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a radially expansible support, the support configured to be deployed in at least a portion of the branch body lumen, the support further having a first radial strength when deployed; a plurality of fronds extending axially from an end of the support and configured to be positioned across the ostium and into the main body lumen; and at least one circumferential link connecting at least a first and a second frond, the circumferential link spaced axially apart from the support and having a second radial strength when deployed, the second radial strength being less than the first radial strength; wherein the prosthesis is mounted on a balloon catheter such that the radially expansible support is carried by a first portion of a balloon that is inflatable to a first diameter and the circumferential link is carried by a second portion of a balloon that is inflatable to a second diameter that is larger than the first diameter. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43)
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Specification