Abstract: A circuit connector for a humidification system, the system comprising a base unit configured to be engaged by a humidification chamber. The circuit connector comprises an inlet to fluidly connect to an outlet of the humidification chamber to receive humidified gases therefrom, an outlet to sealably connect to or integral with a conduit for directing the humidified gases to a user, and an electrical terminal for electrically coupling the circuit connector to an electrical terminal associated with the base unit. The circuit connector may be releasably and lockably connectable to the outlet of the humidification chamber and/or orientation features may control orientation of component parts of the system as they are assembled.

Abstract: A flexible circuit and continuity testing device may include a flexible printed circuit substrate. A battery having a positive and negative terminal may be attached to the substrate. An illumination source, e.g., an LED, may be attached to the substrate. The testing device may include a flexible electrical contact array, a small bulb tester, a fuse tester and a system tester. Each of these may be incorporated into the substrate and coplanar with the substrate. The contact array may include a planar coil shape, a semicircular shape, a pair of parallel contacts, a set of converging contacts or other configurations. The device may be about the size and shape of a credit card. The substrate may include a magnet or a pocket clip.

Abstract: A flexible circuit and continuity testing device may include a flexible printed circuit substrate. A battery having a positive and negative terminal may be attached to the substrate. An illumination source, e.g., an LED, may be attached to the substrate. The testing device may include a flexible electrical contact array, a small bulb tester, a fuse tester and a system tester. Each of these may be incorporated into the substrate and coplanar with the substrate. The contact array may include a planar coil shape, a semicircular shape, a pair of parallel contacts, a set of converging contacts or other configurations. The device may be about the size and shape of a credit card. The substrate may include a magnet or a pocket clip.