Patent ID: 9050065
Filing Date: 2015-06-09
Classification: A61B

Abstract:
1. A surgical device, comprising: an elongated fastener body having a proximal end and a distal tip configured to pierce tissue, a portion of the proximal end extending radially from the elongated body; and barbs integrally formed to the fastener body and configured to flex relative to the elongated fastener body in compliance with movement of living tissue, flex toward the elongated fastener body in response to a radially inward load to ease distal insertion into tissue, and flex away from the elongated fastener body in response to an axial load in the direction of the proximal end to engage the pierced tissue and resist proximal movement from the pierced tissue; the barbs extending proximally to free ends and having longitudinally extending external corrugations formed of an alternating series of ridges and grooves, wherein each of the ridges and grooves extends along a longitudinal axis of the barb, providing at least one protrusion at the free end.