Angioplasty autoperfusion catheter flow measurement method and apparatus.

摘要

An angioplasty autoperfusion catheter flow measurement apparatus includes a balloon catheter having an autoperfusion lumen (26) incorporated therein which is acoustically in communication with a flow velocity measuring system (20). The flow measuring system may include a Doppler transducer (30), usually a section of piezoelectric material, located adjacent to the autoperfusion lumen and connected to an external activating and measuring device that indicates the velocity of the blood flowing through the autoperfusion lumen at a remote location outside the patient's body.