07494468 is referenced by 149 patents and cites 884 patents.

An ultrasonic medical device comprises an ultrasonic vibration generator that generates vibration along its longitudinal axis. The ultrasonic vibration is transmitted through an ultrasonic coupler and a series of transformer sections that amplify the ultrasonic vibration. A flexible member is coupled to the distal end of the transformer sections, and is thus supplied with a longitudinal vibration at its base by the transformer sections. The flexible member is designed so that it converts the longitudinal vibration into a standing wave that runs along the length of the flexible member. The standing wave produces a series of nodes and anti-nodes along the length of the flexible member. Each of the anti-nodes produces cavitation in fluids in contact with the probe. The cavitation of the fluids causes destruction of adjacent tissue. In this manner, the entire length of the flexible member becomes a working surface that may be utilized for destroying tissue.

Title
Ultrasonic medical device operating in a transverse mode
Application Number
10/371781
Publication Number
7494468 (B2)
Application Date
February 21, 2003
Publication Date
February 24, 2009
Inventor
Andy Levine
Newton Centre
MA, US
David M Fischer
Waltham
MA, US
Bradley A Hare
Chelmsford
MA, US
Robert A Rabiner
Chelmsford
MA, US
Agent
Fish & Richardson P C
Assignee
OmniSonics Medical Technologies
MA, US
IPC
A61B 17/32
A61B 8/00
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