Method and apparatus for ultrasonic surgical cutting and hemostatis
US5026387A · kind A · utility
863Cited by
5References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1990 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Mar 12, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B2201/76
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A power control arrangement for an ultrasonic surgical device such as a scalpel which provides power on demand in response to the continuous or periodic sensing of the loading condition (tissue contact or withdrawal) of the blade such that the device goes from a low power, idle state to a selectable high power, cutting state automatically depending on whether the scalpel is or is not in contact with tissue. A third, high power coagulation mode is manually selectable with automatic return to an idle power level when the blade is not in contact with tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.