Injection device for medical drug preparation

Abstract

The invention relates to an injection device for medical drug preparation. The injection device comprises a supporting base plate, an overall rotary motor, an injector feeding mechanism and a mandrel push-and-pull mechanism, wherein a feeding motor of the injector feeding mechanism drives a feeding screw to rotate through a coupler, so that a feeding nut drives a feeding sliding block to move up and down along the feeding screw to drive an injector outer sleeve to conduct translational movement in the axial direction of the injector outer sleeve; and a push-and-pull motor of the mandrel push-and-pull mechanism drives a push-and-pull screw to rotate through a coupler, so that a push-and-pull nut drives a push-and-pull sliding block to move up and down along the push-and-pull screw, a mandrel clip fixed on the push-and-pull sliding block drives an injector mandrel to move up and down relative to the injector outer sleeve, and injector push-and-pull actions are finished. The injection device is compact and reasonable in structure, convenient to operate and capable of performing automatic operation on a disposable injector, realizing functions of liquid extraction, liquid injection, transposition, pipetting and the like required in a drug preparation process, lowering the human intervention degree, reducing the labor intensity and avoiding drug waste and cross contamination.

Description

technical field [0001] The invention relates to a device used for medical dispensing, in particular to an injection device for medical dispensing which performs multiple automatic operations on disposable syringes. Background technique [0002] As we all know, the inpatient department of a hospital needs to prepare different types and proportions of medicinal liquids for injection and infusion for each patient according to the doctor's prescription. Since it is related to life and health, the liquid preparation work is very important. At present, the dispensing work in hospitals is performed manually by nurses using disposable syringes. During the dispensing process, it is necessary to continuously pull and push the plunger of the syringe to complete the work, and the labor intensity of the operators is relatively high. Due to the diversity of drugs, the process of dispensing often involves the mixing of drugs in various packaging forms, such as ampoules, vials, infusion bag...

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is to overcome the deficiency that the prior art cannot effectively assist medical personnel in dispensing operations, and to provide a compact, reasonable, and easy-to-operate syringe that can perform multiple automatic operations on disposable syringes and realize the necessary extraction during the dispensing process. Injection device for medical dispensing, which can reduce the degree of human intervention, reduce the labor intensity of dispensing personnel, and avoid drug waste and cross-contamination

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