Pulsating inflatable-deflatable pad assembly and method

Details Pulsating inflatable-deflatable pad assembly and method Pulsating inflatable-deflatable pad assembly and method

1979-07-05

1981-07-28

Yasko, John D.

Surgery

Truss

Perineal

128 64, A61H 100

Patent

active

042804876

ABSTRACT:
An apparatus and method are disclosed for promoting the evaporation of perspiration from an absorbent sheet of foam or other material covering an inflatable-deflatable patient-supporting bed pad. The pad has a multiplicity of perforations in its top wall which communicate with a pair of interlaced passages or chambers within the pad. By pulsing the air supplied alternately to each chamber of the pad at a frequency within the range of about 15 to 65 pulses per second, the perforations provide a multiplicity of tiny puffing or pulsing jets of air into the foam sheet to promote the evaporation of moisture from that sheet. Means for overlapping the inflation-deflation cycles is also disclosed.

REFERENCES:
patent: 2998817 (1961-09-01), Armstrong
patent: 3462778 (1969-08-01), Whitney
patent: 3467081 (1969-09-01), Glass
patent: 3653083 (1972-04-01), Lapidus

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