Patent ID: 8845684
Filing Date: 2014-09-30
Classification: A61B

Abstract:
1. A closure device for closing an opening in body tissue, the closure device comprising: a main body having a longitudinal axis, the main body comprising three resilient arms that each extend from a proximal end to a distal tip, the resilient arms being movable between an open configuration, in which the distal tips are radially spaced apart from the longitudinal axis and from each other, and a closed configuration, in which the distal tips abut one another at or near the longitudinal axis; a sheath longitudinally slidable on the main body to move the arms between the open and closed configurations; and a biasing member that causes the sheath to bias the arms in a first direction toward the closed configuration, wherein, each arm of the plurality of arms includes a tissue stop positioned on a distal end of each arm proximal from the tip, a cross-sectional dimension of the arm with the tissue stop at a position of the tissue stop being larger than at a position of the arm proximal from the tissue stop and distal the sheath, the tissue stop comprising a plurality of circumferentially spaced segments positioned about the arm, each arm having a longitudinal axis extending through the arm and the tissue stop, each tissue stop extending radially outward from the longitudinal axis of each arm and the longitudinal axis of the main body and radially encircling at least a portion of each arm.