Method for vessel access closure
First Claim
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1. A method of closing an opening in the wall of a blood vessel comprising:
- introducing a deployment assembly through an introducer into the opening, wherein the deployment assembly comprises a restraining member, a foot member, a collapsed closure device removably coupled to a distal end of the foot member, and a control member which passes through said foot member and is attached to said closure device;
retracting the restraining member, thereby exposing the distal end of the foot member;
activating said control member thereby controllably causing the foot member to flex, and thereby causing the closure device removably coupled thereto, to rotate within the blood vessel to a rotated orientation;
decoupling the closure device from the distal end of the foot member, wherein at least a portion of the closure device is positioned adjacent to the opening; and
retracting the deployment assembly.
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Abstract
Embodiments are described for closing vascular access ports, such as arteriotomies, which involve placement and deployment of an expandable device configured to prevent blood flow across a subject arteriotomy while also keeping disturbance of intravascular flow to a minimum. Suitable prostheses may comprise one or more frames constructed from lengths of flexible materials, such as shape memory alloys or polymers. Such frames may be coupled to sheetlike or tube-like structures configured to spread loads, minimize thrombosis which may be related to intravascular flow, and maintain hemostasis.
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Citations
26 Claims
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1. A method of closing an opening in the wall of a blood vessel comprising:
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introducing a deployment assembly through an introducer into the opening, wherein the deployment assembly comprises a restraining member, a foot member, a collapsed closure device removably coupled to a distal end of the foot member, and a control member which passes through said foot member and is attached to said closure device; retracting the restraining member, thereby exposing the distal end of the foot member; activating said control member thereby controllably causing the foot member to flex, and thereby causing the closure device removably coupled thereto, to rotate within the blood vessel to a rotated orientation; decoupling the closure device from the distal end of the foot member, wherein at least a portion of the closure device is positioned adjacent to the opening; and retracting the deployment assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of closing an opening in the wall of a blood vessel comprising:
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introducing a deployment assembly through an introducer into the opening, wherein the deployment assembly comprises a restraining member, a foot member which is restrained by said restraining member and which is prebiased to flex when not restrained by said restraining member, a collapsed closure device removably coupled to a distal end of the foot member and a control member which passes through said foot member and is attached to said closure device; retracting the restraining member, thereby exposing the distal end of the foot member thereby allowing the foot member to flex and activating said control member thereby controllably assisting said foot member to flex, and thereby causing the closure device removably coupled thereto, to rotate within the blood vessel to a rotated orientation; decoupling the closure device from the distal end of the foot member, wherein at least a portion of the closure device is positioned adjacent to the opening; and retracting the deployment assembly. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification