Surgical lighting device for fluorescent imaging
US11835203B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2022 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Sep 2, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This disclosure relates to a surgical lighting device for generating a spot of light on a surgical site for use in combination with a fluorescence imaging device. The lighting device comprises a support structure, a subsurface which may be coupled to the support structure to seal the lower surface of the device while allowing light to pass through and a plurality of light sources emitting white light and placed between the support structure and the subsurface. The device further includes a plurality of NIR (near infrared) filters, each NIR filter being associated with a light source and being configured to substantially prevent the transmission of wavelengths within a wavelength band from 680 nm to 900 nm, while minimizing the change in the color temperature of the light spot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.