System and method for determining vessel size and/or edge
US11490820B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2016 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Feb 19, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/72
- 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, an array of light sensors disposed opposite the at least one light emitter, the array comprising a least one row of light sensors, individual light sensors in the row adapted to generate a signal comprising a pulsatile and a non-pulsatile component, and a controller coupled to the array, the controller comprising a splitter to separate the pulsatile component from the non-pulsatile component, and an analyzer to determine the magnitudes of the pulsatile and non-pulsatile components at the individual light sensors, to determine a first peak magnitude and a second peak magnitude of the pulsatile components, and to determine a resting outer diameter of the vessel based on the first and second peak magnitudes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.