Patent ID: 7540852

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 and having a proximal end and a distal end; a distal head coupled with the distal end of the ultrasound transmission member and disposed adjacent the distal end of the catheter body; a sonic connector coupled with the proximal end of the ultrasound transmission member for coupling the ultrasound transmission member with an ultrasound transducer device; and a proximal housing coupled with the proximal end of the catheter body and housing the sonic connector and a proximal portion of the ultrasound transmission member, a heat absorption member disposed around the ultrasound transmission member, the heat absorption member comprising a metalized elastomer; a first O-ring member disposed around the ultrasound transmission member, and disposed proximal to the heat absorption member; and a second O-ring member disposed around the ultrasound transmission member, and disposed distal to the heat absorption member.