Simultaneous electrosurgical sealing and cutting
US12150692B2 · kind B2 · utility
2Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2018 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Feb 16, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1452
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method is provided to seal and cut biological tissue. An alternating current (AC) scaling signal is imparted between a set of sealing electrodes. An AC cutting signal is imparted between a set of cutting electrodes in response to a biological tissue impedance between the sealing electrodes reaching a first impedance threshold value. The AC scaling signal is halted at an end of a time interval, beginning while the AC cutting signal is imparted between the cutting electrodes, in response to impedance of the biological tissue disposed between the set of sealing electrodes reaching a second impedance threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.