Medical Device for Generating Transient Bubbles
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United States of America Patent
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N/A
Issued Date -
Dec 25, 2008
app pub date -
May 4, 2005
filing date -
May 4, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and medical device for generating transient bubbles is provided. Fluid is delivered under pressure through bubble generating means and thereby transient bubbles are generated. The bubbles are micro or nano sized. An ultrasonic source may be used to further vibrate the bubble generating means so as to adjust the size and size consistency of the bubbles. Infusion means may also be provided for infusing the bubbles in a patient. A therapeutic agent, in the form of or delivered in combination with, bubbles may be injected at the point of interest. An ultrasound pulse may additionally be provided to activate bubbles to enhance drug transport through tissues and across cell membranes. The device provides a means to locally generate transient bubbles, to facilitate acoustical activation of therapeutic agents, and the acoustic activation of bubbles infused within therapeutic agents, in order to enhance treatment efficacy.
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