Methods and devices for providing acoustic hemostasis
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United States of America Patent
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-
Jul 4, 2000
Grant Date -
N/A
app pub date -
Jun 4, 1999
filing date -
May 22, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Methods and apparatus for the remote coagulation of blood using high-intensity focused ultrasound (HIFU) are provided. A remote hemostasis method comprises identifying a site of internal bleeding and focusing therapeutic ultrasound energy on the site, the energy being focused through an intervening tissue. An apparatus for producing remote hemostasis comprises a focused therapeutic ultrasound radiating surface and a sensor for identifying a site of internal bleeding, with a registration means coupled to the radiating surface and the sensor to bring a focal target and the bleeding site into alignment. The sensor generally comprises a Doppler imaging display. Hemostasis enhancing agents may be introduced to the site for actuation by the ultrasound energy.
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