Patent ID: 8454653
Filing Date: 2013-06-04
Classification: A61B

Abstract:
1. A compound barb medical device comprising: a body portion; and at least one barb extending from the body portion, the at least one barb including an inner surface and an outer surface defining a longitudinal axis, the inner surface including a first portion disposed at an outer-most end of the barb at a first interior angle relative to the longitudinal axis, a second portion adjacent the first portion and being disposed at a second interior angle relative to the longitudinal axis, and a third portion adjacent the second portion and being disposed at a third interior angle relative to the longitudinal axis, the first angle being greater than the second angle, and wherein the at least one barb is made from a shape memory polymer which can be deformed into a temporary shape from a permanent shape, wherein the barb projects in a first position relative to the body portion when in the temporary shape and in a second position, which is different from the first position, when in the permanent shape.