Alternating pressure pad

Details Alternating pressure pad Alternating pressure pad

A - Human Necessities

61

G

128/15

A61G 7/057 (2006.01)

Patent

CA 1335067

An alternating pressure pad, useful between a mattress and a bed-ridden person for preventing the occurrence of bed sores, defines between at least two air-impermeable sheets at least two separate sets of inflatable body support chambers which interconnect within each set and which are spatially alternated with each other in the pad. The support chambers are alternately inflated and deflated out of phase with each other to provide alternating areas on his body where a person lying on the pad is supported by the pad. In a leg and foot section of the pad, the support chambers in each set extend across the width of the pad and are defined to have a smaller inflated diameter than the other chambers of each set to provide effective support, and freedom from support by them or the mattress, of the heel and ankle areas of the body when those chambers are inflated and not inflated by inflation air applied in a cyclic manner to the support chambers at a support pressure at a level consistent with comfort of the person. A body air chamber is defined in the pad over the support chambers under a pad top sheet which has a predetermined portion of its area open for air to flow through it. The body air chamber can be supplied with air independently of the support chambers for cooling of the person on the pad as desired without interrupting use of the pad for support of the person in an alternating pressure relieving manner preventative of bed sores.

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