Patent ID: 6508781
Filing Date: 2003-01-21
Classification: A61B

Abstract:
An ultrasonic angioplasty device for connection to an ultrasound transducer, the ultrasonic angioplasty device comprising:an elongated catheter body having a lumen extending longitudinally therethrough, the catheter body having a proximal end and a distal end; an ultrasound transmission member located in the lumen of the catheter body and having a distal end for applying ultrasonic energy to a biological subject, and having a proximal end; a connector assembly configured to connect the proximal end of the ultrasound transmission member to an ultrasound transducer and having a surface defining a transverse bore extending at least partially through the connector assembly; and a rotation control device comprising a control shaft disposed at the proximal end of the ultrasound transmission member and coupled to the proximal end of the elongated catheter body such that rotation of the control shaft controls rotation of the catheter body, the control shaft having a surface defining a transverse bore extending at least partially through the control shaft, and the rotation control device further comprising a dowel member disposed in the transverse bores of the control shaft and the connector assembly to align the control shaft and the connector assembly to prevent rotation of the connector assembly and the ultrasound transmission member relative to the control shaft thereby preventing rotation of the ultrasound transmission member relative to the catheter body.