Guide extension catheter and guide catheter extension system

摘要

medical device is disclosed. One exemplary medical device comprises a guide extension catheter (214). Guide extension catheter is provided an elongated tubular member (254), the elongate tubular member has a proximal region (216), the tip region and the (226), these proximal region and a distal region I have, a slot (256) formed between the. Proximal region of the tubular member is configured to transition between a state of collapsed the first state. Guide extension catheter may also include an elongated shaft for causing the transition between a state of the proximal region collapsed the first state.