System and method for delivering and deploying an occluding device within a vessel
First Claim
Patent Images
1. A method for delivering a self-expanding device within a vessel, the method comprising:
- introducing an assembly and a self-expanding device into a lumen of an elongate member, the assembly comprising an innermost delivery wire extending through a lumen of the device, the innermost delivery wire having a distal retaining member for receiving a first end of the device and a proximally positioned retaining member for engaging a second end of the device when the device is axially positioned against said proximally positioned retaining member;
the innermost delivery wire having an expandable portion with a radially compressed state and a radially expanded state, wherein the expandable portion is radially constrained in the radially compressed state by the elongate member and the device as the device and the expandable portion remain within the elongate member;
positioning an end of the elongate member proximate a weakened wall of a vessel;
advancing at least a portion of the assembly out of the elongate member, so that the expandable portion forms a non-rectilinear shape when transitioning from the radially compressed state to the radially expanded state and as the device expands radially and engages the vessel wall;
wherein the device foreshortens longitudinally as the device expands; and
wherein the expandable portion foreshortens longitudinally, while releasing the device, at a slower rate than does the device.
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Abstract
A system and method for deploying an occluding device that can be used to remodel an aneurysm within the vessel by, for example, neck reconstruction or balloon remodeling. The system comprises an introducer sheath and an assembly for carrying the occluding device. The assembly includes an elongated flexible member having an occluding device retaining member for receiving member for engaging a second end of the occluding device and a support surrounding a portion of the elongated flexible member over which the occluding device can be positioned. The elongated flexible member may be a integral portion formed thereof that form a coil portion.
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Citations
20 Claims
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1. A method for delivering a self-expanding device within a vessel, the method comprising:
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introducing an assembly and a self-expanding device into a lumen of an elongate member, the assembly comprising an innermost delivery wire extending through a lumen of the device, the innermost delivery wire having a distal retaining member for receiving a first end of the device and a proximally positioned retaining member for engaging a second end of the device when the device is axially positioned against said proximally positioned retaining member;
the innermost delivery wire having an expandable portion with a radially compressed state and a radially expanded state, wherein the expandable portion is radially constrained in the radially compressed state by the elongate member and the device as the device and the expandable portion remain within the elongate member;positioning an end of the elongate member proximate a weakened wall of a vessel; advancing at least a portion of the assembly out of the elongate member, so that the expandable portion forms a non-rectilinear shape when transitioning from the radially compressed state to the radially expanded state and as the device expands radially and engages the vessel wall; wherein the device foreshortens longitudinally as the device expands; and wherein the expandable portion foreshortens longitudinally, while releasing the device, at a slower rate than does the device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for delivering a self-expanding device within a vessel, the method comprising:
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introducing an assembly and a self-expanding device into a lumen of an elongate member, the assembly comprising an innermost delivery wire extending through a lumen of the device, the innermost delivery wire having a distal retaining member for receiving a first end of the device and a proximally positioned retaining member for engaging a second end of the device when the device is positioned against said proximally positioned retaining member;
the innermost delivery wire having an expandable portion with a radially compressed state and a radially expanded state, wherein the expandable portion is radially constrained by the elongate member and the device as the device and the expandable portion remain within the elongate member;positioning an end of the elongate member proximate a weakened wall of a vessel; advancing at least a portion of the assembly out of the elongate member, so that the expandable portion forms a pattern of peaks when transitioning from the radially compressed state to the radially expanded state and when the first end of the device and the second end of the device move in relation to each other along a length of the assembly as the device is expanded; wherein the first end of the device and the second end of the device move relative to each other along a length of the assembly at a first rate; and wherein the distal retaining member and the proximally positioned retaining member move relative to each other along the length of the assembly at a second rate, slower than the first rate. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification