A system and method for coupling acoustic energy within a waveguide provides highly efficient and sensitive acoustic energy generation and detection. In particular, an ultrasound angioplasty system is described which makes use of an end-fire array of ring transducers to produce highly directionalized...http://www.google.fr/patents/US5713916?utm_source=gb-gplus-shareBrevet US5713916 - Method and system for coupling acoustic energy using shear waves
Method and system for coupling acoustic energy using shear waves
