Electro-mechanical controller to support air-pressure-based patient positioning

A controller for positioning a supine patient utilizing an inflatable device comprising at least three independently inflatable chambers, the controller comprising:

• at least first, second, and third pressure output ports;
• at least first, second, and third pressure sensors;
• a plurality of electro-mechanical switches;
• an electronic user interface;
• a computer;
• a pressurized air input port;
• and
• an atmospheric air port,
• wherein:
• the plurality of electro-mechanical switches are configured to independently control air flow through the first, second, and third pressure output ports;
• the first, second, and third pressure sensors are configured to measure pressure internal to the first, second, and third pressure output ports, respectively;
• the computer is configured to receive first, second, and third pressure signals from each of the first, second, and third pressure sensors, respectively;
• the computer is configured to control each of the plurality of electro-mechanical switches;
• the computer is configured to receive user input from electronic user interface and provide information to the user through the electronic user interface;
• the computer is further configured to store first, second, and third target chamber inflation pressure values;
• the electronic user interface comprises at least a first user input button;
• the computer is configured to manipulate the plurality of electro-mechanical switches to cause pressure in the first pressure output port to equal the first target chamber inflation pressure value upon receiving a signal that the first user input button has been pressed;
• the computer is configured to manipulate the plurality of electro-mechanical switches to cause pressure in the second pressure output port to equal the second target chamber inflation pressure value upon receiving a signal that the first user input button has been pressed;
• and
• the computer is configured to manipulate the plurality of electro-mechanical switches to cause pressure in the third pressure output port to equal the third target chamber inflation pressure value upon receiving a signal that the first user input button has been pressed.