Ultrasound energy driven intraventricular catheter to treat ischemia
US6740040B1 · kind B1 · utility
242Cited by
46References
44Claims
0Family size
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Key dates
| Filing date | Jan 30, 2001 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Nov 4, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00392
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for improving blood flow to an ischemic region (e.g., myocardial ischemia) a patient is provided. An ultrasonic transducer is positioned proximate to the ischemic region. Ultrasonic energy is applied at a frequency at or above 1 MHz to create one or more thermal lesions in the ischemic region of the myocardium. The thermal lesions can have a gradient of sizes. The ultrasound transducer can have a curved shape so that ultrasound energy emitted by the transducer converges to a site within the myocardium, to create a thermal lesion without injuring the epicardium or endocardium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.