Respiratory valve, especially for anaesthetic circuits
US4111228A · kind A · utility
11Cited by
8References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1976 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Dec 28, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7891
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A respiratory valve, especially for use in the circuits of anaesthetic gas devices, having a body member formed with two arms in a V configuration, intended for inhalation and exhalation, respectively, and a tubular mouthpiece fitting. To the two arms are connected, by joints, an inhalation fitting and an exhalation fitting, respectively; the joints retain each the fastening ring of a shutter, the resilient membrane of which closes and opens in response to the gas circulation, as required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.