Patent ID: 8535232

Claim:
An ultrasound catheter probe comprising: a catheter tip at a distal end of the ultrasound catheter probe, said catheter tip having a portion having an enclosed volume; a fluid disposed within said enclosed volume; a flexible and steerable catheter shaft, wherein said catheter tip is attached to said catheter shaft, wherein said catheter shaft comprises an inner shaft and an outer shaft; an electrical interconnection member wherein a first portion of said electrical interconnection member is disposed distal to said inner shaft and wherein a second portion of said electrical interconnection member is disposed between said inner shaft and said outer shaft; and a bubble-trap member interconnected to and within a distal end of the inner shaft of the catheter shaft, wherein the bubble-trap member is fixedly positioned within said enclosed volume and having a distal-facing, concave surface, wherein a distal portion of said enclosed volume is defined distal to said bubble-trap member and a proximal portion of said enclosed volume is defined proximal to said bubble-trap member, wherein an aperture is provided through said bubble-trap member to fluidly interconnect said distal portion of said enclosed volume to said proximal portion of said enclosed volume.