Injector with pushing rod capable of being finely adjusted

Abstract

The invention discloses an injector with a pushing rod capable of being finely adjusted. The injector comprises a movable ring and an injector body. The pushing rod is arranged at one end inside the injector body; a pushing plate is fixed to the top end of the pushing rod, and the bottom end of the pushing rod is connected with a piston; and an outer thread is arranged on the outer side of the pushing rod. In the injector with the pushing rod capable of being finely adjusted, the outer thread is arranged on the outer side of the pushing rod, the movable ring is additionally arranged on the upper portion of the injector, and a through hole with an inner thread at one end is formed in the movable ring; the movable ring is rotated so as to drive pushing or retracting of the pushing rod, accordingly, the advance rate of the pushing rod is finely adjusted, and accurate control over the suction amount of drugs is guaranteed; and a connecting ring is arranged on the lower portion of the movable ring, a sliding rail is arranged on the connecting ring, and the movable ring can move on the connecting ring through the sliding rail, so that when the pushing rod is pushed, normal work of the pushing rod is not affected by the inner thread in the movable ring.

Description

technical field [0001] The invention relates to the technical field of medical injection equipment, in particular to a syringe with a finely adjustable push rod. Background technique [0002] Injection is the injection of liquid or gas into the human body with the help of medical devices such as syringes to achieve the purpose of diagnosis, treatment and prevention of diseases. It's not the same as taking medicine. After injection, the drug can quickly reach the blood and take effect. However, in case of misuse, the drug is not easy to remove, there is pain during injection, and local adverse reactions sometimes occur at the injection site. [0003] However, there are still deficiencies in the existing syringes when they are used. Because the dosage ratio of the medicines needs to be strictly controlled when the patients are injecting the medicines, the syringes are required to meet the requirement that the amount of the medicines can be drawn accurately when drawing the m...

AI Technical Summary

Problems solved by technology

However, in case of misuse, the drug is not easy to remove, there is pain during injection, and local adverse reactions sometimes occur at the injection site

[0003] However, there are still deficiencies in the existing syringes when they are used. Because the dosage ratio of the medicines needs to be strictly controlled when the patients are injecting the medicines, the syringes are required to meet the requirement that the amount of the medicines can be drawn accurately when drawing the medicines. Existing syringes are only equipped with a dial on the outside of the injection tube, and medical staff need to maintain strength when drawing. Due to the randomness of manual operation, the exact amount of extraction is often not achieved

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