Control of a breathing assistance apparatus

The breathing assistance apparatus of any one of the preceding claims, wherein the predetermined charge level is an electrical characteristic (optionally a voltage).

The breathing assistance apparatus of any one of the preceding claims, wherein the predetermined charge level is based on, at least in part, at least one battery discharge configuration.

The breathing assistance apparatus of any preceding claim, wherein the controller is configured to:

• activate the at least one component, increase the power draw of the at least one component, and/or increase the output of the at least one component, and then,
• deactivate the at least one component, decrease the power draw of the at least one component, and/or decrease the output of the at least one component,
• optionally the controller may undertake the activating and/or increasing and deactivating and/or decreasing repeatedly.

The breathing assistance apparatus of claim 38 to 39, wherein after the controller deactivates the at least one component, decreases the power draw of the at least one component, and/or decreases the output of the at least one component the controller is configured to maintain the output of the at least one component (optionally for a predetermined amount of time).

The breathing assistance apparatus of any one of the preceding claims, wherein the controller is configured to control an output of the flow generator to discharge the battery to the predetermined charge level.

The breathing assistance apparatus of any preceding claim, wherein the controller is configured to control the power delivered to the humidifier heater conduit to achieve a target humidifier heater temperature and/or to control the power delivered to the conduit heater to achieve a target conduit heater temperature, optionally the target humidifier heater temperature and/or the target conduit heater temperature is less than about 60 degrees Celsius.

The breathing assistance apparatus of any preceding claim, wherein the controller is configured to control the power delivered to the humidifier heater to achieve a target humidifier heater temperature range and/or to control power delivered to the conduit heater to achieve a target conduit heater temperature range, wherein the target humidifier heater temperature range and/or the target conduit heater temperature range is about 40 degrees Celsius to about 60 degrees Celsius.

The breathing assistance apparatus of any preceding claim, wherein the controller is configured to power off the apparatus once the battery is discharged to a or the predetermined charge level.

The breathing assistance apparatus of any preceding claim, wherein the apparatus comprises at least one display, the display being in communication in with controller.

The breathing assistance apparatus of any preceding claim, wherein the apparatus comprises a user interface (optionally the user interface is a touch interface as part of the at least one display).

The breathing assistance apparatus of any preceding claim, wherein the apparatus is configured to allow the user to initiate the battery discharging to a or the predetermined charge level based on one or more of:

• the user providing credentials associated with permissions allowing the initiation of the battery discharging to a or the predetermined charge level;
• accessing a service menu, optionally via providing a sequence of inputs via the user interface.

The breathing assistance apparatus of any preceding claim, wherein the apparatus is configured to allow the user to initiate the battery discharging to a or the predetermined charge level based on a message from a remote device.

The breathing assistance apparatus of any preceding claim, wherein the apparatus is configured to determine whether a patient is connected to a patient interface.

The breathing assistance apparatus of any preceding claim, wherein the humidifier is configured to be pneumatically connected to the flow generator and to humidify the flow of gases generated by the flow generator.

The breathing assistance apparatus of any preceding claim, wherein the conduit is connected to an outlet of the apparatus.

The breathing assistance apparatus of any preceding claim, wherein the conduit is one or more of:

• an expiratory conduit, an inspiratory conduit, a patient supply conduit.

The breathing assistance apparatus of any preceding claim, wherein the conduit is pneumatically connected to the apparatus.

The breathing assistance apparatus of any preceding claim, wherein the conduit forms part of a gases flow path.

The breathing assistance apparatus of any preceding claim, wherein the apparatus comprises a heater plate as the humidifier heater, wherein the heater plate is configured to heat the contents of a humidification chamber.

The breathing assistance apparatus of any preceding claim, wherein the controller is configured to control the at least one component of the apparatus to discharge the battery to a or the predetermined charge level when the apparatus receives a message from a device.