Wearable passive sweat detection device
US11737702B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2022 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Oct 24, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B10/0064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A wearable passive sweat detection device includes at least one detection sensor that includes: a base plate; a sensing element provided on the base plate, the sensing element including a sweat collection portion and a sweat self-driven detection portion, the sweat collection portion being configured to collect sweat discharged by sweat glands of skin, the sweat self-driven detection portion including a guide portion of a semi-conical structure, a test electrode provided on an outer conical surface of the guide portion, and a back electrode, and a narrow end of the guide portion facing the sweat collection portion; and a test element connected with the test electrode and back electrode. The adoption of the conical structure achieves a liquid-solid friction effect to realize passive detection of sweat components; meanwhile, flexibility is realized to facilitate wearing; by using different ion selective films, different ion concentrations can be detected; detection precision is high.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.