Strain sensor for a medical devices with improved measurement sensitivity
US11504506B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2019 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | May 30, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A strain sensor for capacitive strain measurement has a flat and electrically conductive first conductor element and a flat and electrically conductive second conductor element. The two conductor elements oppose one another and are laterally displaceable relative to one another, so that the two conductor elements, proceeding from a first condition, may be displaced relative to one another into a second condition. An overlap between the two conductor elements is different in the first condition from the second condition. First and second springs attach the conductor elements to first and second attaching regions of the strain sensor. The first attaching region is disposed at a first reference point of a body to be measured, and/or the second attaching region is disposed at a second reference point of the body to be measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.