Use of at least one composite piezoelectric transducer in the manufacture of an ultrasonic therapy apparatus for applying therapy, in a body zone, in particular to concretions, to tissue, or to bones, of a living being and method of ultrasonic therapy
US5316000A · kind A · utility
269Cited by
11References
23Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 21, 1992 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Jan 21, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00547
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a composite piezoelectric transducer for making an acoustic or an ultrasonic therapeutic apparatus. The transducer may be a single large-size transducer or it may be a multi-transducer device and it advantageously emits ultrasonic waves that are focused on a focal point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.