Approaches to determining health of a living body through analysis of the pressure of inflatable chambers of a pressure-mitigation device

A controller comprising:

• a structural body that includes
• an ingress interface to which tubing is connectable, the tubing allowing the ingress interface to be fluidically coupled to a pump that is external to the controller, and
• an egress interface to which multi-channel tubing is connectable, the multi-channel tubing allowing the egress interface to be fluidically coupled to a pressure-mitigation device that is disposed between a human body and a surface,
• wherein the pressure-mitigation device includes a plurality of chambers, and
• wherein the egress interface has a plurality of outlets, each of which is associated with a different channel of the multi-channel tubing through which fluid is able to flow into a corresponding one of the plurality of chambers;
• a plurality of transducers housed inside the structural body that are configured to generate a plurality of electrical signals,
• wherein each electrical signal is representative of a rate at which fluid is flowing into a corresponding chamber of the pressure-mitigation device through a corresponding one of the plurality of outlets along the egress interface to maintain a desired inflation pressure;
• a processor;
• and
• a memory that includes instructions for determining the health of the human body positioned on the pressure-mitigation device,
• wherein the instructions, when executed by the processor, cause the controller to:
• obtain the plurality of electrical signals that indicate, for each chamber of the pressure-mitigation device, inflation pressure over an interval of time,
• continually estimate a value of a characteristic of the human body over the interval of time by
• examining the plurality of electrical signals to identify changes that are indicative of movements of the human body, and
• inferring the value of the characteristic based on the movements of the human body, and
• cause display of the value of the characteristic.