Method for generating a signal corresponding to the respiration volume per unit of time of a patient
US5355894A · kind A · utility
20Cited by
6References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1993 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Aug 23, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7207
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
For generating a signal corresponding to the respiration volume per unit of time of a patient, a signal component correlated with the respiration is filtered out of a measured impedance signal acquired in the region of the heart of the patient, and the zero-axis crossings of this signal component are detected and the maximum values respectively arising in between two successive pairs of zero-axis crossings are identified in terms of amplitude. These maxima are added during a prescribed time interval to form a value corresponding to the respiration volume per unit of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.