PUNCTURE LOCATING DEVICE

摘要

Methods and apparatus for locating a device with respect to a blood vessel. An expandable or extrudable member transverse to the device locates an internal surface of a proximal wall of the blood vessel. A typical application of such methods and apparatus is providing relative position between a femoral arterial wall and a closure device axis. Predetermined location positions are recognized as a positive stop transmitted to a physician via tactile feedback.