Patent ID: 11918205
Assignee: ABBOTT CARDIOVASCULAR SYSTEMS, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 12:
13. A system for closing an opening in a vessel wall, wherein a tissue tract provides access to the opening for performing medical procedures, the system comprising:
a housing with a shaft extending from the housing;
an actuation handle operatively coupled to the proximal housing and configured to deploy a foot disposed distal the housing;
a needle actuation handle operatively coupled to a first needle and configured to deploy the first needle to penetrate the vessel wall and cooperate with the foot;
a suture comprising a first fitting, a pre-tied end-anchor at a first end, a plurality of pre-tied intermediate anchors spaced apart along a length of the suture from the first end to the second end, the suture further comprising shape-memory structures along the length of the suture which resist movement of the suture, the first fitting being configured to cooperate with the first needle, wherein, upon actuation of the needle actuation handle and
proximal movement of the first needle deployed in tissue, the suture is configured to pull opposing edges of the vessel wall together, pull opposing edges of the tissue together to engage the pre-tied end-anchor, the plurality of pre-tied intermediate anchors against a distal surface of the tissue within the tissue tract and against a proximal surface of the vessel wall on anterior and posterior sides of the opening, and partially uncoil the shape-memory structures, and
wherein the plurality of pre-tied anchors and the shape-memory structures are configured to engage with the tissue and the vessel wall and prevent pulling of the second end of the suture through the vessel wall without tails of the suture being tied in a knot.