Ultrasonic endovascular catheter

An apparatus for performing an endovascular procedure, comprising:

• an ultrasonic catheter supporting a first inflatable balloon;
• an ultrasonic wave guide associated with the ultrasonic catheter, the ultrasonic wave guide including a fluid lumen, the ultrasonic wave guide having a proximal portion and a distal portion;
• and
• an ultrasonic transducer having a transducer horn, wherein the proximal portion of the ultrasonic wave guide is crimped directly onto the transducer horn, the ultrasonic transducer is configured to vibrate the ultrasonic wave guide at an ultrasonic frequency, the ultrasonic wave guide is configured to transmit the ultrasonic frequency from the ultrasonic transducer to the distal portion.

An apparatus for performing an endovascular procedure, comprising:

• a first balloon;
• an ultrasonic wave guide having a proximal end and a distal end, the ultrasonic wave guide is a wire having an exposed portion, the ultrasonic wave guide is configured to transmit ultrasonic energy from the proximal end to the distal end, and
• an ultrasonic catheter supporting the first balloon and having a first lumen and a second lumen, the first lumen being configured for transmitting an inflation fluid to or from the first balloon, the second lumen being configured for receiving the ultrasonic wave guide, the second lumen having an exit point and a re-entry point,
• wherein the ultrasonic wave guide exits the second lumen at the exit point and re-enters the second lumen at the re-entry point, wherein the exposed portion of the ultrasonic wave guide lies between the exit point and the re-entry point of the second lumen.

An ultrasonic catheter for performing an endovascular procedure, comprising:

• a catheter body having a first lumen, the catheter body having a catheter body distal end;
• an ultrasonic wave guide having a fluid lumen extending through the ultrasonic wave guide, the ultrasonic wave guide having a proximal portion and a distal portion, the proximal portion having a proximal end, the distal portion having a distal end;
• and
• a first inflatable balloon coupled to the distal portion of the ultrasonic wave guide, the first inflatable balloon being in fluid communication with the fluid lumen via a port,
• wherein the ultrasonic wave guide is configured to extend through the first lumen of the ultrasonic catheter, the ultrasonic wave guide is configured to extend distally beyond the catheter body distal end, the ultrasonic wave guide is configured to receive ultrasonic energy at the proximal portion, the ultrasonic wave guide is configured to transmit ultrasonic energy from the proximal portion to the distal end to disrupt or displace an occlusion in a vascular region, the ultrasonic wave guide is configured to inflate and to deflate the first inflatable balloon via the fluid lumen and port.