Ultrasonic treating apparatus with device for inhibiting drive when ultrasonic element is determined to be defective
US5042460A · kind A · utility
258Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1989 |
| Grant date | Aug 27, 1991 |
| Priority date | — |
| Expiry date | Jun 28, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00123
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ultrasonic treating apparatus includes an inpedance detection unit for detecting the impedance of an ultrasonic vibration element for transmitting ultrasonic vibrations and a determining unit for determining whether the ultrasonic vibration element is good or not. If the ultrasonic vibration element is found not to be good, then a control unit inhibits ultrasonic vibrations from being generated from the ultrasonic vibration element. It is thus possible to prevent any breakage of the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.