Beds – Bedclothing – And means to facilitate changing thereof
Patent
1991-09-18
1992-05-05
Grosz, Alexander
Beds
Bedclothing
And means to facilitate changing thereof
5455, 5469, 5914, A61G 7057, A47C 2710, A47C 2104
Patent
active
051095602
ABSTRACT:
An air mattress is provided having an improved internal construction for supporting a patient. The mattress provides an internal ventilation system for controlling environmental conditions present at the patient mattress interface. The air mattress contains a plurality of pneumatic envelopes disposed adjacent each other. Located between the envelopes are ventilation conduits having a plurality of exhaust ports. Sequentially alternating envelopes are coupled to a fluid supply line which in turn is coupled to a source of compressed air. At predetermined intervals, a first set of envelopes is inflated while adjacent envelopes are deflated, and vice versa, shifting support for the patient to different areas of the body. Each envelope has two vertically disposed chambers. These preferably are provided lateral support by upright, lateral elastic members straddling the envelope. Ventilating air may be provided by an air conditioning system to a manifold for distribution to the several ventilation conduits. In this manner, pressure points along the patient's body are periodically relieved while simultaneously receiving conditioned air to comfort the patient.
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Grosz Alexander
Keisei Medical Industrial Co., Ltd.
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