Patent ID: 6589253
Filing Date: 2003-07-08
Classification: A61B

Abstract:
An ultrasonic angioplasty catheter device comprising an elongate flexible catheter having a proximal end, a distal end, and at least one lumen extending longitudinally therethrough, the device comprising:an ultrasound transmission member extending through said lumen in a fixed position within the catheter lumen and having a distal end with a head for applying ultrasonic energy to an occlusive lesion, and a proximal end configured to be connected to an ultrasound generating device, the distal head being positioned on the distal end of said ultrasound transmission member such that the distal head extends beyond the distal end of the catheter; wherein the ultrasound transmission member comprises an inner member of a first ultrasound transmitting material and a first coaxial shell bonded to the inner member and formed of a second ultrasound transmitting material different from the first ultrasound transmitting material.