INJECTION SYSTEM WITH CAPACITIVE MEASUREMENT Russian patent published in 2016 - IPC A61M5/145 

FIELD: medical equipment.

SUBSTANCE: group of inventions relates to medical equipment, namely to means of injection. Injection system has injection device holding injection syringe and syringe cylinder area, capacitive detector of liquid, capacitive detector of user's actions, electric field, which penetrates into area of syringe cylinder, and logical circuit for determining user's actions based on output signal of capacitive detector of action. In second version of system capacitance detector of liquid has first capacitor, separate second capacitor and separate third capacitor, wherein electric field of three capacitors penetrates into area of syringe cylinder in first position along longitudinal axis of area of syringe cylinder. In third version of system injection device comprises power head and syringe body, which comprises frame, extending beyond power head, capacitive detector of liquid is placed inside syringe body frame so, that syringe body frame is placed between capacitive detector of liquid and syringe. In fourth version system comprises logic circuit, wherein user's action relates to injection device operation. Methods of operation are provided by operation of corresponding systems.

EFFECT: use of inventions enables extending range of technical means of injections with capacitive measurement.

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