US Patent 8444613 Pump leak monitor for negative pressure wound therapy

A therapeutic device includes a fluid mover for one of raising, compressing, or transferring fluid, a therapeutic member operably connected to the fluid mover and actuated thereby, the therapeutic member operably disposably used on a patient in a manner to deliver therapy to the patient as function of actuation of the fluid mover, a controller operably associated with the fluid mover for controlling operation thereof, and a leak, blockage, temperature, voltage or current sensor operably connected to the fluid mover and the controller and to sense a leak, blockage, temperature, voltage or current in the device and send a signal to the controller whereby the controller controls the fluid mover as a function of the sensed signal.