System for determining vessel size using light absorption
US10820838B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2016 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Nov 22, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00057
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical system used to determine a size of a vessel within a region proximate to a working end of a surgical instrument includes at least one light emitter disposed at the working end of the surgical instrument, and at least one light sensor disposed at the working end of the surgical instrument opposite the at least one light emitter, the at least one light sensor adapted to generate a signal comprising a first pulsatile component and a second non-pulsatile component. The system also includes a controller coupled to the at least one light sensor, the controller comprising a splitter to separate the first pulsatile component from the second non-pulsatile component and an analyzer to quantify the size of the vessel within the region proximate to the working end of the surgical instrument based on the first pulsatile component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.