| 摘要 |
PROBLEM TO BE SOLVED: To provide a waterbed by which a bedsore is hardly generated. SOLUTION: This waterbed is provided with a soft resin-made liquid sealing bag 20 in which a liquid is sealed to support a lying person and is characterized by providing a liquid fluidizing means 30 for fluidizing the liquid relatively to the liquid sealing bag 20 and waving a human body support surface 25 of the bag 20. |
