07955293 is referenced by 80 patents and cites 245 patents.

Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, an ultrasound catheter includes an elongate flexible catheter body with one or more lumens. An ultrasound transmission member or wire extends longitudinally through the catheter body lumen and, in many embodiments, a guide wire tube also extends through the same lumen. A distal head is fixed to or otherwise mechanically coupled with the distal end of the ultrasound transmission member or wire and is positioned adjacent the distal end of the catheter body. Although the distal end of the catheter body overlaps the distal head, the distal head is not directly affixed to the distal end of the catheter body. Thus, the distal tip may move freely, relative to the distal end of the catheter body when ultrasonic energy is applied through the ultrasound transmission member. Such a freely floating distal head enhances the efficiency of an ultrasound catheter, enabling the catheter to ablate calcific occlusions and increasing the useful life of the ultrasound transmission member and catheter.

Title
Ultrasound catheter for disrupting blood vessel obstructions
Application Number
11/466738
Publication Number
7955293 (B2)
Application Date
August 23, 2006
Publication Date
June 7, 2011
Inventor
Simon Nguyen
San Jose
CA, US
Martinos Tran
Tracy
CA, US
Jeff Sarge
Fremont
CA, US
Henry Nita
Redwood City
CA, US
Agent
Knobbe Martens Olson & Bear
Assignee
FlowCardia
CA, US
IPC
A61B 17/20
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