Medication injector assembly and method of use

A medication injector system comprising:

• a tubular body;
• a cartridge positioned in the tubular body proximate to a first end of the tubular body;
• a liquid medicine positioned in the cartridge;
• a needle attached to the first end such that the needle is in fluidic communication with the cartridge;
• a plunger positioned in the tubular body;
• an actuator positioned in the tubular body and being operationally engaged to the plunger, such that the actuator is positioned for selectively motivating a stopper of the plunger incrementally through the cartridge for dispensing a dose of the liquid medicine from the cartridge through the needle;
• a valve positioned in a sidewall of the tubular body proximate to a second end of the tubular body;
• and
• a tube extending from the valve through the stopper, such that the valve is in fluidic communication with the cartridge, wherein the tube is configured for passage of air adjacent to the stopper for removing the air from the liquid medicine.

A method of removing air from a cartridge of liquid medicine comprising the steps of:

• providing a cartridge containing a liquid medicine;
• providing a needle;
• providing a medication injector assembly comprising:
• a tubular body configured for insertion of the cartridge, such that the cartridge is positioned proximate to a first end of the tubular body, the first end being configured for selective attachment of a needle, such that the needle is in fluidic communication with the cartridge,
• a plunger positioned in the tubular body,
• an actuator positioned in the tubular body and being operationally engaged to the plunger, such that the actuator is positioned for selectively motivating a stopper of the plunger incrementally through the cartridge for dispensing a dose of a liquid medicine from the cartridge through the needle,
• a valve positioned in a sidewall of the tubular body proximate to a second end of the tubular body, and
• a tube extending from the valve through the stopper, such that the valve is in fluidic communication with the cartridge, wherein the tube is configured for passage of air adjacent to the stopper for removing the air from the liquid medicine;
• positioning the cartridge in the tubular body;
• affixing a needle to the first end of the tubular body;
• positioning the tubular body first end down and tapping the tubular body so that air in the cartridge collects adjacent to the stopper;
• opening the valve to allow passage of the air from the cartridge through the tube;
• and
• closing the valve.