Peeling sheath for self-expanding stent
First Claim
1. A system for enabling an interventional procedure to be performed in a blood vessel at a treatment site, comprising:
- an elongated shaft which includes a distal end portion adapted to be positioned in a blood vessel at a treatment site;
an expandable interventional device positioned on the distal end portion of the elongated shaft;
an expansion retention member adapted to receive the expandable intervention device in a compressed configuration, the retention member having a first end portion, a second end portion and a cross-sectional wall thickness; and
an extendable member attached to the first end portion and configured about the second end portion when the system is assembled for use, the extendable member providing a gradual tapering transition when the interventional device is being deployed at the procedure site.
1 Assignment
0 Petitions
Accused Products
Abstract
A system which is capable of accurately treating an affected area in a body lumen. The system includes a catheter which is positionable in the body lumen at the treatment site and includes an interventional device such as a self-expandable stent which may be deployed in the blood vessel at the treatment site. The system also includes an expansion retention member, adapted to be extended about the interventional device. The system further includes an extendable member, adapted to be extended about the expansion retention member and the interventional device, for delivery of the interventional device to the treatment site, and to be retractable from extending about the expansion retention member for enabling the interventional device to expand at the treatment site.
48 Citations
20 Claims
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1. A system for enabling an interventional procedure to be performed in a blood vessel at a treatment site, comprising:
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an elongated shaft which includes a distal end portion adapted to be positioned in a blood vessel at a treatment site;
an expandable interventional device positioned on the distal end portion of the elongated shaft;
an expansion retention member adapted to receive the expandable intervention device in a compressed configuration, the retention member having a first end portion, a second end portion and a cross-sectional wall thickness; and
an extendable member attached to the first end portion and configured about the second end portion when the system is assembled for use, the extendable member providing a gradual tapering transition when the interventional device is being deployed at the procedure site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20)
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16. A method for treating a body lumen using a system including a catheter having an expansion retention member having a first end connected to an external surface of an extendable member and a second end removably contained within an exterior of the extendable member, the expansion retention member operating to releasably contain a treatment device in a constrained configuration and having a portion forming two layers, comprising;
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placing the system within a body lumen;
advancing the system to a repair site; and
partially releasing the treatment device by configuring a first portion of the treatment device within both the expansion retention member and the extendable member, a second portion of the treatment device within only two layers of the expansion retention member and a third portion of the treatment device in contact with the body lumen such that a gradual tapered transition is provided by the expansion retention member and extendable member.
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Specification