| 摘要 |
An air mattress includes a plurality of symbiotic sacs juxtapositionally transversely secured in a mattress envelope, having a plurality of primary and secondary symbiotic sacs alternatively pulsated in the envelope for continuously changing the pressurized areas of a bed-ridden patient for preventing pressure sores such as bed sore or decubitus ulcer, with each symbiotic sac consisting of an upper pulsating sac portion alternatively inflated and deflated and a lower static sac portion constantly inflated to maintain at least a partial fluid pressure in each symbiotic sac for continuously cushioning the patient even when a power failure is caused or bed transfer is required, and having a plurality of tertiary symbiotic sacs constantly inflated for cushioning a patient head portion, with each symbiotic sac independently secured in the mattress envelope whereby upon breaking of any one sac, only an individual broken sac should be replaced with a new one without abandoning the whole mattress.
|
