Automatic regulation of respirators
US3961627A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1974 |
| Grant date | Jun 8, 1976 |
| Priority date | — |
| Expiry date | Sep 3, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2016/0039
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Regulation of the flow and pressure of the respiration gas in a respirator coupled to a patient is disclosed in regard to a respirator arrangement having a flow and pressure measuring device arranged proximate the patient connection for determining the flow and pressure of the respiration gas and converting the magnitudes, measured into electrical signals and also valve means arranged between the respiration gas source and the measuring device for controlling the flow and pressure of the respiration gas. Means are provided for obtaining a control signal for modulating the valve means by comparing the actual values measured for the flow and pressure with nominal values which themselves are calculated from preselected fixed values and said actual values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.