Delivery guide member based stent anti-jumping technologies
First Claim
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1. A stent delivery system comprising:
- a self-expanding stent having a plurality of proximal termination points, and a delivery guide comprising a tubular member restraining the stent in a collapsed configuration, the tubular member having a distal end with a varying axial extent, wherein withdrawal of the tubular member releases the stent such that the varying axial extent releases some of a plurality of the proximal terminal points in a step-wise fashion to alleviate stent jumping upon delivery.
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Abstract
Medical device and methods for delivery or implantation of prostheses within hollow body organs and vessels or other luminal anatomy are disclosed. The subject technologies may be used in the treatment of atherosclerosis in stenting procedures or a variety of other procedures.
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Citations
20 Claims
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1. A stent delivery system comprising:
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a self-expanding stent having a plurality of proximal termination points, and a delivery guide comprising a tubular member restraining the stent in a collapsed configuration, the tubular member having a distal end with a varying axial extent, wherein withdrawal of the tubular member releases the stent such that the varying axial extent releases some of a plurality of the proximal terminal points in a step-wise fashion to alleviate stent jumping upon delivery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A stent delivery guide comprising:
a tubular member adapted to restrain a stent in a collapsed configuration, the tubular member having a distal end with a varying axial extent. - View Dependent Claims (15, 16, 17)
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18. A method of stent delivery, the method comprising:
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positioning a stent at a target site, the stent having a plurality of proximal terminal points, and first releasing more than half of the proximal terminal points, then releasing the remaining terminal points to complete stent release. - View Dependent Claims (20)
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19. A method of stent delivery, the method comprising:
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positioning a stent at a target site, the stent having a plurality of proximal terminal points axially aligned with a delivery guide member, and first releasing at least some of the proximal terminal points, then releasing the remaining terminal points to complete stent release.
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Specification