Patent ID: 11957829
Assignee: KCI LICENSING INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A system comprising:
a negative-pressure source including a pump adapted to generate a pump pressure (PP) and an electric motor for driving the pump in response to an application of power to the electric motor;
a wound pressure sensor having an input for sensing a wound site pressure (WP) at a wound site and an output; and
a system controller coupled to the electric motor and the output of the wound pressure sensor, the system controller configured to compare the wound site pressure (WP) to pressures within a hysteresis control band bounded by a maximum wound site pressure (WPMax) and a minimum wound site pressure (WPMin);
wherein the maximum wound site pressure (WPMax) and the minimum wound site pressure (WPMin) are based upon a flow rate (FR) of fluid between the pump and the wound site and the system controller is further configured to maintain the wound site pressure (WP) within the hysteresis control band.