Apparatus for and method of measuring body fat
US6618615B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 21, 2000 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Feb 16, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/4872
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A photometer comprises a projecting mechanism irradiating a physical mass with infrared light within a wavelength region of 1.1 to 2.0 &mgr;m, a photoreceiving mechanism receiving output light from the physical mass and a spectroscope separating the light applied to the physical mass or the output light from the physical mass into its spectral components, for measuring absorbance by the physical mass at a specific wavelength. A compression mechanism can compress a measured region of the physical mass or a peripheral portion thereof, and difference absorbance calculator obtains difference absorbance from first absorbance obtained by the photometer under a state compressed by the compression mechanism with a first pressure and second absorbance obtained by the photometer under a state compressed with a second pressure lower than the first pressure or a non-compressed state. A storage part stores a relation between body fat and difference absorbance, and an operation part quantitatively determines and outputs body fat from the difference absorbance calculated by the difference absorbance calculator on the basis of the relation stored in the storage part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.