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Method and apparatus for medical procedures using high-intensity focused ultrasound

  • US 6,315,741 B1
  • Filed: 09/03/1999
  • Issued: 11/13/2001
  • Est. Priority Date: 10/31/1997
  • Status: Expired due to Term
First Claim
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1. A presurgical device for preparing an organ of a patient for surgical incisions, comprising:

  • transducer means for emitting energy as high frequency focused ultrasound; and

    means for controlling focal position and focal intensity of energy emissions from said transducer means such that acoustic energy at selective focal zones produces coagulative necrosed tissue in the form of predetermined surgical pathways within the tissue such that surgical incisions along the surgical pathways is subject to substantially no bleeding; and

    tissue backing means for protecting tissue beyond a selective focal zone from exposure effects of emitted energy from the transducer means.

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