Precise accurate measurement of the administration of drugs using the injection method by means of ultrasonic pulse-echo principles

摘要

A dosage control system includes a syringe and a dosage control module. The syringe includes a barrel and a plunger. The plunger includes a plunger seal located within the barrel and the barrel includes an end configured to connect to a needle. The dosage control module measures a first distance between the plunger seal and the end of the barrel, measures at least one second distance between the plunger seal and the end of the barrel, determines whether a predetermined amount of medication has been administered from the syringe based on a difference between the first distance and the at least one second distance, and selectively activates at least one of a visual indication and an audio indication if the predetermined amount of medication has been administered from the syringe.