초록 ▼

Disclosed is a ventilated support for living bodies comprising an inflatable alternating pressure pad which is either enclosed by or forms a part of an air permeable plenum chamber through which air is pumped at low pressure to provide a source of ventilating air to a body resting on the support. Th

Disclosed is a ventilated support for living bodies comprising an inflatable alternating pressure pad which is either enclosed by or forms a part of an air permeable plenum chamber through which air is pumped at low pressure to provide a source of ventilating air to a body resting on the support. The alternating pressure pad which is inflated by a high pressure pump has two sets of interdigitated cells which are alternately inflatable and deflatable and carry the weight of a body, alternately, on each of the two sets of cells. The plenum chamber is provided with a separate low pressure air pump which passes through the air permeable upper element of the plenum chamber to reduce moisture build-up and otherwise cool the body resting on the support. In the embodiment in which the alternating pressure pad forms the upper element of the plenum chamber, it is provided with a plurality of apertures which are sealed from the alternating pressure cells to prevent the loss of pressure therein.

대표청구항 ▼

A ventilated support for living bodies comprising: a plenum chamber having a plurality of apertures for communication with the environment; first pump means coupled to said plenum chamber for providing passage of air through said plenum chamber at a relatively low pressure; alternating inflatable su

A ventilated support for living bodies comprising: a plenum chamber having a plurality of apertures for communication with the environment; first pump means coupled to said plenum chamber for providing passage of air through said plenum chamber at a relatively low pressure; alternating inflatable support means disposed in operative relationship to said plenum chamber and having a first set of aligned bubblelike cells which are interdigitated with a second set of aligned bubblelike cells for giving sole support to said living body; and second pump means coupled to said alternating inflatable support means for alternately inflating at a relatively high pressure said first and second interdigitated sets of aligned bubblelike cells.