Rapid and infinite continuous injection pipette device

Abstract

The invention discloses a rapid and infinite continuous injection pipette device. The rapid and infinite continuous injection pipette device comprises at least the following parts: a contralateral syringe, a contralateral multiported valve, a push rod, and a needle; the contralateral syringe comprises two syringe tubes, two pistons, two rack rods, and a gear; the syringe tubes are arranged in parallel; the pistons are separately arranged inside the two syringe tubes; one ends of the rack rods are connected with the pistons while the other ends are connected with a push rod; the two rack rods are arranged opposite to each other; the gear is located between the two rack rods, and is respectively meshed with the rack rods; and the syringe tubes of the contralateral syringe are respectively connected with the needle and a liquid inlet unit through the contralateral multiported valve. On basis of the structural design of the device, synchronous liquid injection and extraction by the two syringe tubes can be realized; and thus, infinite repeated operation is made available.

Description

technical field [0001] The invention belongs to the technical field of injection equipment, in particular to a fast and infinite continuous injection and pipetting device. Background technique [0002] At present, most of the continuous syringes adopt the structure of two spring one-way valves. This structure can continuously absorb liquid and inject, but there are at least two problems and one deficiency. [0003] Two problems are: 1. Most of the springs inside the used spring check valve have compatibility problems with medicaments, and it is very difficult to seal the springs. 2. Due to the complex internal structure of the spring valve, it is not small, and there is a short stroke of pressure when it is closed, its accuracy is very poor, and the accuracy of most continuous syringes is about 20-100uL. Its one shortcoming is: only one kind of liquid can be operated at a time, and now general veterinary vaccines all contain multiple vaccines, and to inject multiple vaccin...

AI Technical Summary

Problems solved by technology

This structure can continuously absorb liquid and inject, but there are at least 2 problems, and 1 deficiency

[0003] Two problems are: 1. The spring inside the spring check valve used has compatibility problems with most of the medicaments, and it is very difficult to seal the spring

2. Due to the complex internal structure of the spring valve, it is not small, and there is a short stroke of pressure when it is closed, its accuracy is very poor, and the accuracy of most continuous syringes is about 20-100uL

Its one shortcoming is: only one kind of liquid can be operated at a time, and now general veterinary vaccines all contain multiple vaccines, and to inject multiple vaccines, it is necessary to inject multiple injections, and due to factors such as the struggle of animals, animals are not vaccinated. And the most painful process of treatment is the acupuncture process

There are two problems: 1. Unlimited continuous injection is not possible. The principle is to absorb liquid once and inject in multiple segments, so there are injection times

2. The internal structure is complex and expensive

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