Array-type capacitive pressure pulse wave sensor, and pulse wave measuring apparatus having the same
US7069791B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2005 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Jul 7, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An array-type capacitive pressure pulse wave sensor includes m rows of lower electrodes arranged in parallel with each other to extend substantially linearly in a direction approximately orthogonal to the extending direction of the artery at the time of measurement, n columns of upper electrodes arranged in parallel with each other at a prescribed distance from the m lower electrodes to extend in a direction crossing the extending direction of the m lower electrodes, and m×n capacitive elements formed at intersections of the m lower electrodes and the n upper electrodes. The m×n capacitive elements are arranged in a staggered manner when the pressure detecting portion is seen in two dimensions. Thus, it is possible to provide an array-type capacitive pressure pulse wave sensor that can be manufactured inexpensively and that ensures accurate and stable measurement of the pressure pulse wave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.