Abstract: Systems and methods implement a status assessment of a respiratory device with sound evaluation. In some versions, the system may include a motor operated pressure generator to generate airflow through an air circuit to a patient interface. The system may include a transducer producing a signal representing sound of the generator in the circuit. The system may include a controller, such as with a processor, for generator control. The system, such as with the controller, computes a sound representation in the frequency domain. The system applies, to the frequency domain representation, any one or more of an integer-multiple function, non-integer-multiple function, a statistical correlation function and resonant frequency function, such as of a fundamental frequency attributable to motor operation. The system may derive a noise vector with data from the function(s). The system may classify the vector to obtain a status indicator of the generator and generate indicator related output.

Abstract: A system and method for increasing the efficiency of a breast pump device is disclosed. The system includes a breast pump device with a vacuum pump to provide suction force to a flange attached to the breast of a user. The device includes a controller that controls the pump with different modes of pumping operation including a prime mode and a pump mode. The pump device may include a pressure sensor that provides data to a transceiver sending data to an external device. The flange unit may include a substantially circular rim with a layer configured to contact the skin of a user to convey the suction force. The system may include milk containers that include a machine scannable external identification tag.