Pulse wave detecting apparatus
US5170796A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Feb 20, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/043
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pulse wave detecting apparatus, including a pulse wave sensor having a press surface on which a plurality of pressure sensing elements are provided in an array, a main device receiving an electric signal from each of the pressure sensing elements, a determining device determining a correlation between a distribution of magnitudes of the electric signals as taken along the array of pressure sensing elements, and each of a plurality of predetermined reference distributions which is indicative of a corresponding one of a plurality of different relative positions of the array of pressure sensing elements with respect to the blood vessel, a selecting device selecting one of the reference distributions which provides the greatest correlation of all the correlations determined by the determined device, and a transmitting device transmitting to the main device the electric signals generated from the pressure sensing elements in a portion of the array of pressure sensing elements which portion corresponds to the relative position indicated by the reference distribution selected by the selecting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.