Catheter based surgery
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United States of America Patent
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Nov 20, 2001
Grant Date -
Jun 14, 2001
app pub date -
Dec 29, 1998
filing date -
Feb 15, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A method of excavating tissue in the body, including bringing a catheter (60) to a location, injecting microbubbles (84) at the location and causing cavitation of tissue (76) at the location using ultrasound. Preferably, the microbubbles (84) are injected directly into the tissue, such as by using a hollow needle (62). Alternatively, microbubbles (84) are injected into the vascular bed of the tissue at the location, so that the capillaries (86) are infused with microbubbles (84).
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