Sensing respiration parameters based on an impedance signal
US11998303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2019 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Jun 24, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0204
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This disclosure is directed to devices, systems, and techniques for identifying a respiration rate based on an impedance signal. In some examples, a medical device system includes a medical device including a plurality of electrodes. The medical device is configured to perform, using the plurality of electrodes, an impedance measurement to collect a set of impedance values, where the set of impedance values is indicative of a respiration pattern of a patient. Additionally, the medical device system includes processing circuitry configured to identify a set of positive zero crossings based on the set of impedance values, identify a set of negative zero crossings based on the set of impedance values, and determine, for the impedance measurement, a value of a respiration metric using both the set of negative zero crossings and the set of positive zero crossings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.