Combination ultrasonic and electrosurgical instrument with adjustable energy modalities and method for sealing tissue and inhibiting tissue resection
US11278340B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2018 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Jan 7, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ultrasonic surgical instrument and method of sealing tissue includes interrogating the tissue with an electrical signal and adjusting an electrical parameter of at least one of the ultrasonic energy or the RF energy in response to the tissue feedback to inhibit transecting the tissue. The ultrasonic surgical instrument has an end effector, a shaft assembly, a body, and a power controller. The power controller is operatively connected to the ultrasonic blade and the RF electrode and configured to direct activation of the ultrasonic blade or the RF electrode. The power controller is further configured to interrogate the tissue with the electrical signal via the ultrasonic blade or the RF electrode to provide a tissue feedback and adjust an electrical parameter of the ultrasonic energy or the RF energy in response to the tissue feedback to inhibit transecting the tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.