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Transmyocardial revascularization using ultrasound

  • US 6,511,444 B2
  • Filed: 01/31/2000
  • Issued: 01/28/2003
  • Est. Priority Date: 02/17/1998
  • Status: Expired due to Term
First Claim
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1. An ultrasonic system for selectively and non-invasively vaporizing body tissue, the system comprising:

  • an extracorporeal array of ultrasonic transducers, each of said transducers being capable of producing an ultrasonic wave; and

    a plurality of channel driving systems, each of said channel driving systems being coupled to one of said transducers and providing an output signal having an amplitude and a phase to a corresponding one of said transducers, each of said channel driving systems including at least one of a power measurement system and a phase detector for providing measured values of a respective one of said amplitude and said phase of said output signal, each of said channel driving systems adjusting said corresponding output signal based on a pre-selected value of said output signal and the measured value of said output signal to selectively vaporize said body tissue.

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