Hand-held medical liquid dispensing device

Abstract

The invention relates to a hand-held medical liquid dispensing device. The hand-held medical liquid dispensing device comprises a shell, and a drive device and a main control circuit board which are positioned in the shell, wherein the drive device comprises a support frame, a direct current motor, a driving screw gear, a driven screw gear, synchronous belt wheels, synchronous belts, a push-pull head and a guide rod; the driving screw gear is mounted on a gear shaft connected with the direct current motor; the driven screw gear is mounted on a back rotation shaft; the driving screw gear and the driven screw gear are matched with each other; both sides of the driven screw gear on the back rotation shaft are respectively provided with one synchronous belt wheel; the two synchronous belts are mounted between the synchronous belt wheels; the lower part of the push-pull head is fixedly connected with the synchronous belts; and the rotating motion of the direct current motor is converted into the linear reciprocating motion of the push-pull head through the transmission of the screw gears and synchronous belts, thereby pushing / pulling a core rod of a syringe. The hand-held medical liquid dispensing device has the advantages of reasonable structure, small volume, light weight, convenient operation process and simple and reliable power transmission, and can be used with a common disposable syringe for medical liquid dispensing.

Description

technical field [0001] The invention relates to a medical device, in particular to a hand-held medical liquid dispenser. It is mainly suitable for operators to configure liquid medicine. Background technique [0002] As we all know, the inpatient department of a hospital needs to prepare different types and proportions of liquid medicines for each patient for injection according to the doctor's prescription. Because it is related to life and health, the work of liquid preparation 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. When the number of patients in the hospital is large, the workload of dosing will be very heavy, and the staff will be under great mental pressure due to fear of making mistakes, which will gre...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies in compatibility, self-cleaning, economization, ergonomics and other aspects of the above-mentioned prior art, and to provide an electric motor with reasonable structure, small size, light weight, easy operation, simple power transmission, Reliable, compatible with ordinary disposable syringes, can completely avoid cross-contamination, will not cause waste of liquid medicine, and is a hand-held medical dispenser with good ergonomics

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