FIELD: medicine.
SUBSTANCE: auxiliary device contains a dose window that closes the sleeve, where the dose values are marked. The auxiliary device also comprises a main body; a device to support the main body of the auxiliary device in a predetermined position relative to the injection device; a transparent protective window located on the main body surface that is aligned with the dose window of the injection syringe pen while used; a sensor device installed in the main body and containing a sensor directed to the protective window; an illumination device comprising one or more light sources. Each of one or more light sources is directed to the protective window; and the non-transmissive part located on the optical path between the first of one or more light sources and a point on the dose window where the reflection to the sensor will occur.
EFFECT: improvement of the device.
18 cl, 19 dwg
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