Abstract: Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a guide extension catheter. The guide extension catheter may include a proximal shaft having a first outer diameter. A distal sheath may be attached to the proximal shaft and may have a second outer diameter greater than the first outer diameter. The distal sheath may be designed to extend past a coronary ostium and into a coronary artery so that another medical device can pass therethrough toward the coronary artery. An expandable balloon may be coupled to the distal sheath.

Abstract: Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a guide extension catheter. The guide extension catheter may include a proximal shaft having a first outer diameter. A distal sheath may be attached to the proximal shaft and may have a second outer diameter greater than the first outer diameter. The distal sheath may be designed to extend past a coronary ostium and into a coronary artery so that another medical device can pass therethrough toward the coronary artery. An expandable balloon may be coupled to the distal sheath.

Abstract: Medical devices and methods for making, preparing, and using medical devices are disclosed. An example method may include disposing an implantable medical device along an outer surface of a balloon. The implantable medical device may include a polymeric stent having a plurality of openings formed therein. The implantable medical device may be designed to shift between a compressed configuration having a compressed diameter and an expanded configuration having an expanded diameter. The method may also include compressing the implantable medical device to an intermediate diameter between the compressed diameter and the expanded diameter and applying inflation pressure to the balloon so that at least a portion of the balloon extends at least partially into at least one of the plurality of openings in the implantable medical device.

Abstract: Multifunctional occlusion crossover devices include features to improve the crossover balloon occlusion technique used during transcatheter aortic valve replacement procedures, for example. The devices include a compliant balloon incorporated with a highly flexible and lubricous sheath system. The balloon is capable of safely occluding from the common iliac artery and down to an access site in the femoral artery. The devices can simplify the CBOT technique and replace multiple devices currently used for the procedure.