Patent ID: 7909797
Filing Date: 2011-03-22
Classification: A61M,Y02D

Abstract:
1. An elongate medical device for use with a wire guide, the elongate medical device comprising a shaft extending between a distal end and a proximal end, and a lumen extending through at least a portion of the shaft, the lumen comprising a coupling region extending between a distal opening and a proximal opening, the coupling region being configured to receive a wire guide extending there through, wherein the proximal opening is disposed through a wall of the shaft and is spaced away from the proximal end of the shaft, and wherein the coupling region has a length that is less than the length of the shaft, and wherein the wall includes a pre-formed stress riser disposed along a perimeter of the proximal opening for reducing a rupture force in a portion of the wall of the shaft adjacent to and in communication with the proximal opening, wherein the stress riser does not extend longitudinally along a substantial remaining portion of the wall of the shaft that is disposed between the proximal opening and the distal opening and is spaced apart from the proximal opening.