Ultrasonic endoprobe

摘要

One ultrasonic endoprobe of this invention has a tubular member formed of a superelastic metal tube and a resin cover covering the outside surface of the superelastic metal tube. An inner assembly comprising an ultrasonic transducer is housed in the tubular member. Another ultrasonic endoprobe of this invention has a composite tubular member formed of a coil, a braid covering the outside surface of the coil, and an outer cover covering the outside surface of the braid. An inner assembly comprising an ultrasonic transducer is housed in the composite tubular member. The ultrasonic endoprobe of this invention has a very small diameter, a high flexibility, a high durability, and a higt torque-transmissibility.