Indicator in Injection Device
Publication Date: 2015-Jul-29
The IP.com Prior Art Database
Injection devices are used to introduce a variety of materials into users. Automatic injection devices are one type of injection device. In order to inform the user about the device such as its status or progress, injection devices may provide indicators.
Injection devices are used to introduce a variety of materials into users. Automatic injection devices are one type of injection device. Automatic injection devices are actuated by the user to release stored energy within the device resulting in the device automatically injecting a dose of medication through an inserted needle.
In order to inform the user about the device such as its status or progress (e.g. that the dose injection is complete), injection devices may use visual, vibrational or audible notices or indicators.
Visual indicators can take varied forms. A typical way to provide a visual indicator is to have a window in the device housing, or a transparent component of the device housing, through which a user can see something else inside the housing. That something else, whether it be a flag or a banner or a light, or even an operational part of the delivery mechanism of the device, when viewed may indicate to a user a condition of the device. One known indicator, for example, uses a banner or tape that during use passes under a window, so that different parts of the banner, with different messages or markings, are visible to a user based on device operation progress so as to help a user know the condition of the device, such as whether that device is new or spent. In another known device, the position of the plunger advancing drive member, as visible through a transparent housing, indicates if the device has been used.
One possible implementation of a visual indicator involves a device mechanism component that at least rotates within the device from an initial start position prior to device activation to a another position once the device has satisfactorily completed a stage or task. The rotatin...