Method of recapturing a stent
First Claim
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1. A method of retrieving a stent, comprising:
- positioning a portion of a first stent within a lumen of a second stent residing at a first location in a blood vessel;
contacting a surface of the second stent with the first stent; and
translating the first and second stents away from the first location.
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Abstract
A method to retrieve a deployed stent in a blood vessel. In one embodiment, the method includes the introduction of a retrieval stent within the lumen of the deployed stent, enlarging the retrieval stent to contact a surface of the deployed stent and contracting the retrieval stent which in turn causes the deployed stent to contract for removal from the blood vessel. The retrieval stent may contain one or more fluid passageways through which heated or cooled fluid can circulate and may be connected to a catheter for circulation of the fluid. Fluid flow may be regulated by a valve or valve assembly incorporated in the stent and/or the catheter.
105 Citations
24 Claims
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1. A method of retrieving a stent, comprising:
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positioning a portion of a first stent within a lumen of a second stent residing at a first location in a blood vessel;
contacting a surface of the second stent with the first stent; and
translating the first and second stents away from the first location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of retrieving a stent, comprising:
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positioning a portion of a first shape memory stent attached to a catheter within a lumen of a second shape memory stent deployed in a blood vessel;
delivering heated fluid from the catheter to the first stent to cause the first stent to expand from a contracted diameter to an expanded diameter, a surface of the first stent contacting a surface of the second stent;
introducing a cryogenic fluid into the first stent to cause the first and second stents to contract to a removal diameter; and
removing the first and second stents from the blood vessel.
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- 19. A stent comprising a non-inflatable non-porous tubing, including at least one fluid flow conduit therein, the tubing being circumferentially arranged to form a side wall of the stent, thereby creating a main lumen of the stent through which blood can flow.
Specification