Ultrasound apparatus and method for augmented clot lysis
US6945937B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2004 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Sep 3, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2007/0095
- WIPO fieldMedical technology
- WIPO sectorInstruments
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 generates a plurality of acoustic signals and time, amplitude, phase and frequency modulation of the signals provide more uniform power delivery with fewer gaps in the ultrasound field. Interference patterns from one or multiple transducers are constantly shifted in position. A phased array of transducers may generate a beam that is swept over the area to be treated. In another embodiment, an array of transducers 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.