DRUG ADMINISTRATION MECHANISM METHOD FOR USING DRUG ADMINISTRATION MECHANISM AND PUMP UNIT FOR DRUG ADMINISTRATION MECHANISM

摘要

The present invention includes a main body and a pump unit (3) installed on the main body, wherein the pump unit (3) sucks a drug from a drug container and discharges it to a patient by repeatedly expanding/reducing the volume of a portion that delivers a liquid. A pump 31 to be used, a suction side pipe 333 extending from the pump 31 to the drug container side, a discharge side pipe 343 extending from the pump 31 to the patient side, and a discharge side pipe 343 at one end 351 ) and a relief pipe opening/closing valve (35, 35a) connected to the relief pipe (35, 35a), the other end (352) of which is located at a lower pressure than the pressure in the discharge side pipe at the time of drug administration, and a relief pipe opening/closing valve ( 36, 36a), a method of using the application device, and a pump unit for the application device.