Stent delivery system with diameter adaptive restraint
First Claim
Patent Images
1. A stent delivery system comprising:
- a stent; and
a delivery guide comprising a restraint covering the stent in a collapsed configuration, a length of the restraint having a first diameter over the stent, the length of the restraint adapted to assume a substantially reduced second diameter when withdrawn from the stent.
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Accused Products
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. For such purposes, a self-expanding stent may be deployed in connection with an angioplasty procedure with a stent delivery system having a diameter adaptive restraint. Upon withdrawal of the restraint, the stent is freed, while the restraint or connections thereto assumes a reduced diameter within a tubular body of the delivery guide.
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Citations
37 Claims
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1. A stent delivery system comprising:
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a stent; and
a delivery guide comprising a restraint covering the stent in a collapsed configuration, a length of the restraint having a first diameter over the stent, the length of the restraint adapted to assume a substantially reduced second diameter when withdrawn from the stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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17. The system of claim 17, wherein the first diameter is as large as about 0.018 inch
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18. The system of claim 18, wherein the first diameter is as large as about 0.014 inch.
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34. A method of stent delivery, the method comprising:
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providing a stent delivery system having a restraint holding a self-expanding stent in a collapsed configuration, positioning the stent at a target site, and withdrawing the restraint to release the stent for deployment at the target site, wherein at least a portion of the restraint substantially decreases in diameter during release of the stent. - View Dependent Claims (35, 37)
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36. A method of stent delivery, the method comprising:
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providing a stent delivery system having a restraint holding a self-expanding stent in a collapsed configuration, positioning the stent at a target site, and withdrawing the restraint to release the stent for deployment at the target site, wherein at least a portion of the restraint is urged into a decreased diameter during release of the stent.
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Specification