System and method for testing contact quality of electrical-biosignal electrodes
US10799180B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2016 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Nov 30, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0276
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
One variation of a method for testing contact quality of electrical-biosignal electrodes includes: outputting a drive signal—including an alternating-current component oscillating at a reference frequency and a direct-current component—through a driven electrode; determining that a reference electrode is in improper contact with a user's skin if a reference signal read from the reference electrode excludes a first signal component oscillating at the reference frequency and a second signal component oscillating at an ambient frequency; determining that a sense electrode is in improper contact with the user's skin if the reference signal includes the first signal component and if a sense signal read from the sense electrode excludes a third signal component oscillating at the reference frequency; and generating an electrode adjustment prompt if one of the reference and sense electrodes is determined to be in improper contact with the user's skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.