Surgical instrument
US5205817A · kind A · utility
264Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1992 |
| Grant date | Apr 27, 1993 |
| Priority date | — |
| Expiry date | Jan 17, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C3/03
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical instrument comprises an ultrasonic source (7) and an ultrasonic vibration transmitter (8) connected to the source (7), which generates ultrasonic mechanical vibration. The ultrasonic vibration transducer includes a plurality of ring-shaped cutting blade portions (14) provided on an outer periphery of an operational part (9) which contacts organic tissue, and a liquid passage (11) through the transducer. The liquid passage opens at a front end (12) of the operational part and at recesses (13) between the blade portions. The surgical instrument cuts or incises organic tissue by ultrasonic vibration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.