Patent ID: 8597276
Filing Date: 2013-12-03
Classification: A61F,A61M,Y10T

Abstract:
1. A system for delivering a self-expanding implant within a body lumen comprising: a tubular catheter having proximal and distal ends and comprising an outer shaft member slidably disposed about an inner shaft member, the inner shaft member having a first interlock structure; a tubular self-expanding implant disposed intermediate the inner and outer shaft members, a proximal end of the implant having a second interlock structure configured to mate with the first interlock structure to maintain rotational alignment between the implant and the inner shaft member; a guide wire lumen extending at least partially through the inner shaft member from a proximal opening to a distal opening in the inner shaft member and exiting the outer shaft member through a radial guide wire lumen opening of the outer shaft member at a location intermediate of the catheter proximal end and the proximal opening in the inner shaft member; and an alignment mechanism comprising a contact surface disposed about an inner circumference of the outer shaft member, said inner circumference being in frictional contact with at least a portion of the self-expanding implant to maintain rotational alignment of the outer shaft member relative to the inner shaft member, thereby maintaining alignment between the guide wire lumen and the guide wire lumen opening.