Percutaneous endomyocardial revascularization

摘要: This invention is a system and method for percutaneous myocardial revascularization using laser energy emitted from the distal end of catheter. A technique controlling beam direction allows creation channels in patient's heart tissue with having different orientations relative to end. An arrangement provides plurality at one time by simultaneous application beams energy. navigation uses two non-coplanar magnetic sensing coils (124F, 124T, 124S) catheter cooperating three sets field generating external (i.e., patient) (120F1-120F3, 120S1-120S3, 120T1-120T3). Each sequentially energized sense fields established. computer compares sensed known sequence energizing thereby determines opposition pressure sensor senses ventricular during immediately after revascularization.