| 摘要 |
The body of the bedridden subject rests on a mattress body consisting of two assemblies (1 and 2) of blocks (3) forming a chequerboard by coaptation, the said assemblies, alternately inflated by a pump (7), provide support in turn for the said body. The blocks of one assembly are accommodated between the blocks of the other assembly with some degree of clearance so that the said mattress is permeable. <IMAGE>
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