Medical device with capacitive sensing function
US11452473B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2019 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Nov 25, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10151
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical device with a capacitive sensing function includes a medical body having a syringe and a sensing circuit having an electrode, a protective film adhered to the medical body and including a plastic film, an electrode provided on the plastic film and opposite from the electrode of the medical body, and a capacitive sensor formed by the electrode of the medical body and the electrode of the protective film and being a part of the sensing circuit, wherein a capacitance value of the capacitive sensor changed under the condition of removing the protective film from the medical body, the sensing circuit being configured to detect the capacitance value and trigger corresponding function of the medical body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.