Apparatus and method for measuring and recording the quantity of medicament remaining in a medicament dosing device

An apparatus for measuring and recording a quantity of a medicament remaining in a medicament dosing device, comprising

• a detachable medicament dosing device, having a stem part and a container part, the detachable medicament dosing device further comprising:
• a liquid container containing the medicament to be dispensed,
• a plunger residing inside the liquid container and is movable inside the liquid container with the help of a plunger head and a plunger rod,
• a screw head at the end of a liquid container that is of a different color for a different type of medicament;
• a contact image sensor at a location inside the apparatus wherein the contact image sensor captures an image which is at least one pixel wide longitudinally of the detachable medicament dosing device for producing color curves;
• a software of the apparatus which is in connection with the contact image sensor that concludes the position of the plunger with respect to fixed parts of the medicament dosing device;
• a memory of the apparatus for storing date and time of medicament doses and the quantity of the remaining liquid in the liquid container;
• a measurement processor for controlling the contact image sensor, and configured for:
• reading the analogue values of the pixels from the contact image sensor, converting the analogue values to digital readings data, and outputting the digital readings data;
• a main processor for receiving the data from the measurement processor, analyzing the received data and calculating the remaining quantity of the liquid in the liquid container,
• wherein the calculation of remaining liquid in the liquid container is performed by the software which concludes the position of the plunger with respect to fixed parts of the medicament device by analyzing the color curves and the liquid container dimensions.