Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1983-03-15
1987-09-15
Recla, Henry J.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
137908, 137491, 2511496, A62B 704
Patent
active
046932429
ABSTRACT:
This invention relates to a coupling connector attachable to and detachable from a respirator mask. The connector comprises a chamber which is arranged to be in communication with the mask in the attached position, a tube for connection to a source of pressurized breathing gas, a valve to admit or interrupt the gas flow, a pressure gauge device sensing the relative pressure prevailing within the chamber, and means of positively interlinking the said valve with the pressure gauge device.
According to the invention the connector has a feeler which is released or inserted depending on whether it is attached to the mask or not, said feeler being associated with the interlinkage means via means modifying the mode of operation, which are arranged to establish an operational mode under negative pressure or overpressure automatically depending on whether the feeler is free or inserted.
The connector is intended for respirator devices shut off in the open circuit condition.
REFERENCES:
patent: 2406888 (1946-09-01), Meidenbauer, Jr.
patent: 3995626 (1976-12-01), Pearce, Jr.
patent: 4067329 (1978-01-01), Winicki
patent: 4334532 (1982-06-01), Jackson
patent: 4345593 (1982-08-01), Sullivan
patent: 4361145 (1982-11-01), Ekstrom et al.
Fenzy S.A.
Recla Henry J.
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