Disposable syringe for continuous repeated quantitative injection

Abstract

The invention relates to a disposable syringe for continuous, repeated and quantitative injection. The disposable syringe comprises a retaining mechanism, a pressing mechanism, a pressure rod, more than two pressure needles and a mounting frame. The retaining mechanism comprises recesses, outer caps and a retaining sheet, the outer wall of a syringe tube is provided with the recesses, and the retaining sheet is arranged on a piston rod. The pressing mechanism comprises a pressing rod hinged to the other end of the piston rod, and a vertical pressing rod is hinged to the other end of the pressing rod. The mounting frame comprises an upper connecting rod and a lower connecting rod, and two pressure needle fixing rods, an elastic strap, a pressure rod slide rail and a pressure rod fixing rodwith pressure rod fixing holes are vertically and sequentially connected between the two transverse connecting rods. The pressure needles penetrate through holes of the two pressure needle fixing rods; the tip of each pressure needle, the center point of the corresponding outer cap through hole and the center point of the corresponding pressure rod fixing hole are collinear; the pressure rod is placed in a rectangular through hole of the pressure rod slide rail, and one end of the pressure rod is abutted against the elastic strap while the other end extends into one of the pressure rod fixingholes. Continuous, repeated and quantitative injection is realized, and accuracy and controllability of liquid outlet quantity are realized.

Description

technical field [0001] The invention belongs to the field of syringes, in particular to a disposable syringe used for multiple continuous quantitative injections. Background technique [0002] Traditional syringes mainly inject quantitatively according to the scale on the barrel wall. Due to the operator's sight and hand speed, the injection dose control is inaccurate, which will bring serious consequences. Quantitative injection, excessive central nervous system mild toxic reactions: drowsiness, dizziness, multilingualism, panic and disorientation; moderate toxic reactions: loss of consciousness, tremors in facial muscles and limbs, and epilepsy waves in EEG in severe cases; severe toxic reactions : From muscle tremor to muscle spasm, convulsions, convulsions, dyspnea, respiratory failure and circulatory system. [0003] Therefore, there is an urgent need for a precise and controllable syringe with a liquid output for continuous, multiple, quantitative injection processes....

AI Technical Summary

Problems solved by technology

[0004] The invention provides a disposable syringe for continuous multiple quantitative injections, which solves the technical problem of inaccurate injection dose control due to the operator's sight and hand speed in the prior art, and realizes continuous, multiple, quantitative injections. Injection, and the precise and controllable amount of liquid

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