GUIDE EXTENSION CATHETER

摘要

Medical devices are disclosed. An example medical device may include a guide extension catheter (214). The guide extension catheter may include an elongate tubular member (254) having a proximal region (216), a distal region (226), and a slot (256) formed in the tubular member between the proximal region and the distal region: The proximal region of the tubular member may be configured to shift between a first configuration and a collapsed configuration. The guide extension catheter may also include an elongate shaft (260) for shifting the proximal region between the first configuration and the collapsed configuration.