Sensing body information apparatus for volume and blood flow via light reflectance
US11172838B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2015 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Jul 9, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/02416
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus and method for sensing body information is provided. The apparatus includes: a light-emitting device configured to emit a light signal toward an object that is to be sensed; a light-receiving device configured to detect a reflected light signal reflected from the object; an image sensor configured to detect the reflected light signal reflected from the object; and a controller configured to selectively drive at least one of the light-receiving device and the image sensor according to a distance between the object and the light-emitting device and to sense volume information or blood flow information of the object by using the reflected light signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.