Fine dissection mode for tissue classification
US11839396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2018 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Apr 1, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2218/008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of controlling the application of energy to a radio frequency (RF) instrument based on a surgical technique may include activating the instrument for a first period T1, during which time a portion of an end effector contacts a tissue, plotting at least two electrical parameters associated with the tissue to classify an amount of the end effector in contact with the tissue, applying a classification algorithm to classify the amount of the end effector in contact with the tissue, and applying an amount of energy to the end effector based on the amount of the end effector in contact with the tissue. The parameters may include a minimum impedance of the tissue and an amount of time that the impedance slope is ˜0. The end effector may contact the tissue with a tip end or with an entire surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.