A MINIATURE INFUSION PUMP FOR A CONTROLLED DELIVERY OF MEDICATION

摘要

The present invention is a miniature medication pump. With a small lightweight mechanism, operating on low energy consumption, the medication pump device is a highly reliable controlled portable device of drug infusion to patients. The proposed device is comprised of a piezoelectric actuator, operated by a programmable logic means, which applies force on a lever. The lever is situated between two unidirectional stoppers and transfers the force of the actuator onto the front stopper. The front stopper has a grip on the plunger stem and it therefore pushes it in the direction of the syringe and releases controlled amounts of medication to the body of the patient. The invention also include monitoring mechanisms which enable constant and accurate measurements of the amount of medication which is released from the device in actuality. The user of the pump is alerted about detected deviations from the designated flow of the medication.