Wound therapy system with wound volume estimation

A wound therapy system comprising:

• a negative pressure circuit configured to apply negative pressure to a wound;
• a pump fluidly coupled to the negative pressure circuit and operable to control the negative pressure within the negative pressure circuit;
• a pressure sensor configured to measure the negative pressure within the negative pressure circuit or at the wound;
• and
• a controller communicably coupled to the pump and the pressure sensor, the controller configured to:
• execute a pressure testing procedure comprising applying a pressure stimulus to the negative pressure circuit;
• observe a dynamic pressure response of the negative pressure circuit to the pressure stimulus using pressure measurements recorded by the pressure sensor, the dynamic pressure response characterized by a pressure change within the negative pressure circuit while the pump is inactive;
• and
• estimate a wound volume of the wound based on the dynamic pressure response.