Guidance system for a near-infrared fluorescein angiography operation with a 785nm continuous wavelength light source
US11050951B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2019 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Sep 27, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A guidance system for a near-infrared fluorescein angiography operation with a 785 nm continuous wavelength light source is provided. The guidance system includes a near infrared continuous laser emitting source, a visible light illumination source, a light collector, a light splitter connected to the light collector, a visible light filter, a near infrared filter, a color camera connected to the light splitter via the visible light filter, a near infrared camera connected to the light splitter via the near infrared filter, a terminal display, and a shell configured to contact with the body tissue of the patient. The near infrared to continuous laser emitting source and the visible light illumination source are provided on a light source support in the shell. The shell is provided therein with a viewing channel which is connected to the light collector. Both the color camera and the near infrared camera are connected to the terminal display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.