Bone mineral content measuring apparatus
US5204888A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1990 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Dec 14, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A bone mineral content measuring apparatus for obtaining the bone mineral content of an object to be examined by irradiating X-rays onto the object and measuring the X-rays which have passed through the object. An X-ray generating device generates X-rays having a continuous spectrum. The X-rays generated pass through an X-ray filter before the irradiation of the object or after the transmission of the object. The X-ray filter is composed of a substance having an X-ray absorbing characteristic with the K-absorption edge at a predetermined energy value. The X-rays which have passed through the X-ray filter and the object are detected by the X-ray detector. A data analyzer inputs the detected X-ray detection data and analyzes the bone mineral content of the object on the basis of the X-ray absorbing characteristic of the X-ray filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.