System to differentiate and identify types of tissue within a region proximate to a working end of a surgical instrument
US11992235B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2017 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Dec 21, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2505/05
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical system used to determine the presence of a vessel within a region (102) proximate to a working end (104) of a surgical instrument (106) includes at least one light emitter (110) disposed at the working end (104) of the surgical instrument (106), and at least one light sensor (112) disposed at the working end (104) of the surgical instrument (106) and configured to receive light emitted from the at least one light emitter (110) and reflected from the region (102), the at least one light sensor (112) adapted to generate a signal comprising a first pulsatile component and a second non-pulsatile component. The system also includes a controller (114) coupled to the at least one light sensor (112), the controller (114) comprising a splitter (116) to separate the first pulsatile component from the second non-pulsatile component and an analyzer (118) to determine the presence of the vessel within the region (102) proximate to the working end (104) of the surgical instrument (106) based on the first pulsatile component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.