Method and apparatus for controlling a CPAP device

An apparatus for treating sleep disordered breathing, the apparatus comprising:

• a flow generator configured to deliver a supply of breathable gas at positive pressure to a patient;
• and
• a control interface configured to control the apparatus, the control interface comprising:
• a display configured to display a control menu for the apparatus, the control menu including at least one menu list, each menu list including a plurality of menu items, and the at least one menu list comprising a first menu list;
• a control dial configured to be rotated in a first direction of rotation and a second direction of rotation to navigate within the control menu;
• and
• a controller configured to:
• instruct the display to display the first menu list such that a predetermined one of the plurality of menu items is selected,
• determine an initial direction of rotation of the control dial from among the first direction of rotation and the second direction of rotation when the control dial is rotated while the first menu list is displayed,
• assign the initial direction of rotation to a first direction of navigation within the first menu list while the first menu list is displayed, and
• navigate through the plurality of menu items of the first menu list in the first direction of navigation then the controller determines rotation of the control dial in the initial direction of rotation.

A method for controlling an apparatus for treating sleep disordered breathing, the apparatus including a flow generator configured to deliver a supply of breathable gas at positive pressure to a patient and a control interface configured to control the apparatus the method comprising:

• displaying a control menu for the apparatus with a display, the control menu including at least one menu list, each menu list including a plurality of menu items, and the at least one menu list comprising a first menu list;
• rotating a control dial in a first direction of rotation or a second direction of rotation to navigate within the control menu;
• instructing the display to display the first menu list with a controller such that a predetermined one of the plurality of menu items is selected;
• determining an initial direction of rotation of the control dial with the controller from among the first direction of rotation and the second direction of rotation when the control dial is rotated while the first menu list is displayed;
• assigning the initial direction of rotation with the controller to a first direction of navigation within the first menu list while the first menu list is displayed;
• and
• navigating through the plurality of menu items of the first menu list in the first direction of navigation with the controller when the controller determines rotation of the control dial in the initial direction of rotation.