07540846 is referenced by 13 patents and cites 159 patents.

Apparatus and methods for ablating tissue surrounding a tubular anatomical structure such as the wall of a blood vessel or prostatic tissue surrounding the urethra. The apparatus includes an ultrasonic emitter such as a cylindrical emitter and an inflatable annular lens balloon surrounding the ultrasonic emitter. The lens balloon is inflated with a liquid having acoustic velocity different than that of the surrounding medium, so as to form an annular refracting surface. The acoustic energy from the emitter is focused into an annular focal region.

Title
Energy application with inflatable annular lens
Application Number
11/267123
Publication Number
7540846 (B2)
Application Date
November 4, 2005
Publication Date
June 2, 2009
Inventor
David E Acker
St. James
NY, US
Patrick David Lopath
Stamford
CT, US
Todd Fjield
Laguna Hills
CA, US
Edward Paul Harhen
Duxbury
MA, US
Agent
Lerner David Littenberg Krumholz & Mentlik
Assignee
ProRhythm
NY, US
IPC
A61H 5/00
A61H 1/02
A61H 1/00
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