Hand-Held Electronically Controlled Injection Device For Injecting Liquid Medications

A medication delivery device comprising:

• a housing,
• a door coupled to the housing and moveable between a closed position and an open position, the door permits insertion of a medication container into the housing when in the open position, the medication container containing liquid medication therein;
• a door opening mechanism coupled to the door;
• and
• a push member axially moveable between a retracted position and a non-retracted position, the push member located external to the medication container, wherein the push member enters the medication container and pushes the liquid medication out of the medication container to deliver it to a patient;
• a lock mechanism coupled to the door opening mechanism and prevents opening of the door when the push member is in the non-retracted position inside the medication container, wherein the lock mechanism automatically unlocks the door opening mechanism when the push member is in the retracted position.