Implantable medical device delivery system with a frangible portion and methods of making the same

摘要

A delivery system for delivering an implantable medical device to a target location of a body vessel. The system comprises a generally hollow tubular carrier member (10) defining a longitudinal axis and having a proximal portion (12), which is adapted to remain outside the body when in use, a distal portion (14), at least a portion of which is adapted to be positioned inside the body when in use, and a frangible portion (16) intermediate said proximal portion (12) and said distal portion (14). The frangible portion (16) comprises at least one notch (18) providing a break hinge transverse to said longitudinal axis of the carrier member (10). The frangible portion (16) has a breaking strength about said break hinge less than a breaking strength about any other line transverse to said longitudinal axis of the carrier member (10). A locking member (20) is at least partially received within the carrier member (10), extending at least from the proximal portion (12) of the carrier member to the distal portion (14) of the carrier member, and adapted to be releasably connected to an implantable medical device, wherein a portion of the locking member (20) is fixedly secured to the proximal portion of the carrier member (10). A method of manufacturing the delivery system is also provided.