Hand operated device for controlled deployment of a tissue anchor and method of using the same

摘要

A tissue anchoring system includes a tissue anchor member that is suitable for anchoring against tissue. The system also includes a tensioning member operatively connected to the anchor member such that the anchor member can slide relative to the tensioning member, the tensioning member capable of being pulled to cause the anchor member to move relative to the tensioning member into a position seated against the tissue. A hand operated deployment catheter is operable to extend and deploy the anchor member therefrom. The deployment catheter includes a rotatable member about which the tensioning member is routed and a clutch assembly for limiting tension within the tensioning member to prevent the deployed anchor from being pulled through the tissue.

主权项

1. A tissue anchoring system comprising:
a tissue anchor member that is configured for being anchored against tissue; a tensioning member operatively connected to the anchor member such that the anchor member can slide relative to the tensioning member, the tensioning member capable of being pulled to cause the anchor member to change a position thereof; and a hand operated deployment catheter operable to extend and deploy the anchor member therefrom, the deployment catheter having a handle and including:
a rotatable member about which the tensioning member is routed and a clutch assembly for limiting tension within the tensioning member, wherein the rotatable member is contained within the housing;a deployable pusher assembly for controllably deploying a portion of the anchor member, the pusher assembly including a slideable pusher actuator that is coupled to and accessible along the handle and is moveable between a retracted position and an extended position in which the pusher assembly deploys at least a portion of the anchor member; anda locking mechanism that selectively engages the rotatable member and prevents rotation thereof, wherein when the slideable pusher actuator is in the retracted position, the locking mechanism automatically engages the rotatable member to prevent rotation thereof and maintain a length of the tensioning member that exists external to the rotatable member.