Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1992-07-31
1995-03-14
Asher, Kimberly L.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820524, 12820525, 248122, 248129, 137343, A61M 1600, A62B 902, A62B 1802, F16L 300
Patent
active
053968859
ABSTRACT:
A mobile air supply cart for use by personnel wearing respirators while working in hazardous environments. The cart supports two compressed air cylinders and has a handle and wheels, thereby facilitating transporting the air supply as the movements of the user require. A connector pin allows the cart to be separated into a base assembly and a frame assembly to which the cylinders are secured. In this configuration the cylinders can be carried through confined spaces. A piping system is mounted on the cart and regulates the pressure of the air supplied to the user. Valving allows the cylinder from which air is supplied to be switched out and the other cylinder to be switched in as the air is depleted in one cylinder without interrupting the supply of air to the user. A low pressure manifold on the cart allows several users to be supplied with air simultaneously. A coupling in the piping system allows the cylinders to recharged from a remote air supply while simultaneously supplying air to the user.
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Foregger, "Anesthesia Apparatus", The Foregger Co., Roslyn Heights, N.Y., 1962, Cat. #17, 3 sheets, p. 64.
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