Patent ID: 7621929

Claim:
An ultrasound catheter for disrupting occlusions in blood vessels, the ultrasound catheter comprising: an elongate flexible catheter body having a proximal end, a distal end and at least one lumen; an ultrasound transmission member extending longitudinally through the lumen of the catheter body; a sonic connector coupled with a proximal end of the ultrasound transmission member for coupling the ultrasound transmission member with a separate ultrasound generating device, the sonic connector comprising a proximal portion and a distal portion; and at least one absorber member coupled with the ultrasound transmission member adjacent the sonic connector, wherein the at least absorber member comprises at least two component parts, the component parts comprising: at least one vibrational absorber in contact with the transmission member for absorbing vibrations, wherein the vibrational absorber is disposed distally to the distal portion of the sonic connector; and at least one constraining member coupled with the vibrational absorber for holding the vibrational absorber in place on the transmission member, wherein the at least one constraining member comprises a proximal portion and a distal portion, and wherein the proximal portion of the constraining member overlaps the distal portion of the sonic connector.