Microwave coagulating scalpel
US4534347A · kind A · utility
167Cited by
14References
40Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 1983 |
| Grant date | Aug 13, 1985 |
| Priority date | — |
| Expiry date | Apr 8, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1412
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A microwave coagulating scalpel which simultaneously severs and coagulates highly vascular tissue is disclosed. The scalpel blade forms both a cutting edge and a microwave radiator loop, with the diameter of the loop related to the wave length of the microwave frequency, when the microwave energy is propogated in highly vascular tissue. A range of 100 MH.sub.z to 13,000 MH.sub.z is disclosed with preferential frequencies at 915 MH.sub.z, 2450 MH.sub.z and 5800 MH.sub.z. A bolometer and threshold switch to de-energize the microwave source when the blade is removed from the highly vascular tissues also is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.