Sensor device for real-time monitoring or relative movement using capacitive fabric sensors
US7712373B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 2, 2007 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Jun 2, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6831
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A capacitive sensor device, including electrode materials carried by fabric substrates, is provided for monitoring relative movement of an expanding and/or contracting structure, such as the mammalian chest and/or torso, corresponding to a performance parameter related, for example, to respiratory function. Some embodiments include non-woven fabric substrates comprising compliant portions configured to stretch only in a selected direction and non-compliant portions upon which electrode materials are disposed. In some embodiments, layers of fabric substrates, carrying corresponding first and second electrode materials, are configured to cooperate to form a parallel plate capacitive sensor having a variable capacitance corresponding to a relative motion of the fabric substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.