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Patent Searching and Data


Title:
ULTRASOUND APPARATUS AND METHOD FOR AUGMENTED CLOT LYSIS
Document Type and Number:
WIPO Patent Application WO2005025403
Kind Code:
A3
Abstract:
An apparatus and method for using ultrasound augmented with microbubbles, thrombolytic drugs or other agents for clot lysis wherein at least one ultrasound transducer (20) generates a plurality of acoustic signals and time, amplitude, phase and frequency modulation of the signals to provide more uniform power delivery with fewer gaps in the ultrasound field. Interference patterns from one or multiple transducers (12, 13, 14, 16, 20) are constantly shifted in position. A phased array (30) of transducers (31) may generate a directed beam that is swept over an area or directed to a specific location. In another embodiment, an array of transducers (12, 13, 14, 16, 20, 30) may generate ultrasound at a number of slightly varying frequencies to produce an interference pattern that sweeps in and out through the targeted tissue. A single array may be used to produce both effects simultaneously or separately.

Inventors:
CULP WILLIAM C (US)
WILSON JAMES D (US)
Application Number:
PCT/US2004/028934
Publication Date:
August 18, 2005
Filing Date:
September 03, 2004
Export Citation:
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Assignee:
UNIV ARKANSAS (US)
CULP WILLIAM C (US)
WILSON JAMES D (US)
International Classes:
A61B8/00; A61B17/22; A61N7/00; A61N7/02; A61B; (IPC1-7): A61N7/00
Foreign References:
US20040059220A12004-03-25
US6416740B12002-07-09
Other References:
See also references of EP 1663394A4
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