Device and method for vascular closure

摘要

A vascular closure delivery system is provided comprising a needle and suture delivery unit and a suture knot system. The delivery unit may comprise a tube, a leg, a tensioning device, a pusher, a needle, and an actuator, the tube being configured to house the needle. In an open position, the tensioning device exerts tension on the leg, and the pusher and suturing apparatus are in a delivery configuration for delivering the needle to the internal tissue wall. Further, actuation of the actuator moves the pusher towards an expulsion end of the tube such that the pusher engages the needle and expels the needle from the tube. The suture knot system comprises a shaft, an inner tubular member, and an inner rod. The inner tubular member is radially translatable with respect to the shaft. The inner rod is slidably coupled to and is axially translatable within the inner tubular member.

主权项

1. A vascular closure device having a proximal end proximate to a user and a distal end, comprising:
a support member; a leg having first and second ends, the first end being pivotally mounted to the support member, the leg being movable between a stowed position and a deployed position; a needle carrier tube connected to the second end of the leg and having an open end facing proximally in both the stowed position and the deployed position; a needle positioned in the needle carrier tube; a pusher positioned in the needle carrier tube at a location distal of the needle and operable to advance the needle out of the open end of the needle carrier tube when the leg is in the deployed position; wherein the leg and the needle carrier tube are axially aligned with the support member when the leg is in the stowed position, and the leg and needle carrier tube are arranged out of alignment with the support member when the leg is in the deployed position.