An air cushion device and an air cushion system for medical care include an air cushion module, a pressure sensing system, and a host. The air cushion module includes a plurality of main airbags. The pressure sensing system includes a bus transmission module and a plurality of sensing modules. Each sensing module includes a sensing unit and a transition unit. The sensing unit is provided on a supporting surface corresponding to the main airbag and has a conductive circuit pattern and a plurality of conductive blocks. The conductive circuit pattern forms a plurality of supporting surfaces distributed on the main airbag. A conductive block is arranged at the sensing point to connect the positive and negative leads of the corresponding sensing point, and when the pressure is applied, the corresponding sensing point is conducted and the impedance changes with different pressures. The transfer unit is electrically connected to the sensing unit and the bus transmission module. The host is connected to the air cushion module and the bus transmission module to receive the measured sensing signals and control the inflation and deflation of the air cushion module.一種醫療照護用氣墊裝置及氣墊系統，包含氣墊模組、壓力感測系統及主機。氣墊模組包括多個主氣囊。壓力感測系統包括匯流傳輸模組及多個感測模組。每一感測模組包括感測單元及轉接單元，感測單元設於對應主氣囊的支撐面並具有導電線路圖案及多個導電塊，導電線路圖案形成多個分布於主氣囊的支撐面的感測點，導電塊設於感測點以連接對應感測點的正、負極導線且於受壓時使對應感測點導通並隨不同壓力產生阻抗變化。轉接單元電連接感測單元與匯流傳輸模組。主機連接氣墊模組和匯流傳輸模組以接收測得的感測訊號並控制對氣墊模組充氣及洩氣。
