Surgery – Truss – Pad
Patent
1976-01-07
1978-01-10
Michell, Robert W.
Surgery
Truss
Pad
128203, 128351, 137557, 137840, 340242, 285249, 285 93, A61M 1600
Patent
active
040673294
ABSTRACT:
A warning device of the disconnection of a tube from another tube, for example, of a respirator canula from a patient's medical equipment comprises: a source of gas under pressure; a pneumatic switch; a filter; an adjustable pressure reducing valve; and a pneumatic cell of the fully open -- fully closed type, supplied by said pressure-reducing valve. A sensing tube terminates in at least one orifice between the walls in contact of two said tubes when they are normally connected and controls the cell. A distributor is supplied by said pressure-reducing valve and controlled at its resting input and at its working input by the cell. At least one alarm means is supplied by the distributor. The said orifice may be an open end of said sensing tube, inserted between the walls in contact of the canula and of the apparatus of the patient.
REFERENCES:
patent: 1150204 (1915-08-01), Julian
patent: 2151092 (1939-03-01), Dunsheath
patent: 3952740 (1976-04-01), Scurlock
Michell Robert W.
Recla Henry J.
Union Chimique Continentale-U.C.C.
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