US Patent 10966829 Medical device shaft including a liner

Medical devices and methods for making and using medical devices are disclosed. An example delivery system for an implantable medical device includes an inner shaft having a proximal end region, a distal end region, a non-circular lumen extending therethrough. The delivery system also includes a tension resistance member extending at least partially between the proximal end region and the distal end region, a deployment catheter disposed along the outer surface of the shaft, and an actuation shaft disposed within the non-circular lumen. Further, the actuation shaft is coupled to the implantable medical device and translation of the actuation shaft shifts the implantable medical device from a first position to a second position.