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Needleless injection connecting device

A connecting device and needle-free injection technology, which is applied in the direction of syringes, hypodermic injection devices, and injectors by jetting, etc., can solve the problems of waste of resources, expensive medicine tubes, etc., to prevent repeated use, reduce costs, and ensure the health of patients Effect

Inactive Publication Date: 2019-01-15
THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the case of changing the injection liquid, in order to ensure safety, a new drug tube needs to be replaced before the next use; and the cost of the drug tube is relatively expensive, which is a burden to the patient, and needs to be replaced after each use. Throwing away the drug tube is also a waste of resources

Method used

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  • Needleless injection connecting device
  • Needleless injection connecting device
  • Needleless injection connecting device

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Embodiment Construction

[0028] Further detailed explanation through specific implementation mode below:

[0029] The reference signs in the drawings of the description include: connecting pipe 1, push-pull plate 2, syringe 3, piston 4, core rod 5, pen body 6, first spring 7, push rod 8, first arc-shaped groove 9, second A bayonet socket 10, a push-pull rod 11, a through groove 12, a baffle plate 13, a second arc groove 14, a second bayonet socket 15, a groove 16, a second spring 17, a locking strip 18, a through hole 19, a strip Hole 20, connecting rod 21, the first pawl 22, the second pawl 23, torsion spring 24, chute 25, blocking block 26.

[0030] Such as figure 1 , 2 The needle-free injection connection device shown in . The part of the right end of the cylinder 3 that protrudes upwards and downwards is called the cylinder crimp; the piston 4 is slidably arranged in the cylinder 3, the core rod 5 is fixedly connected with the piston 4, and the right end of the core rod 5 also has a core rod cr...

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Abstract

The invention relates to the needleless injection field, in particular to a needleless injection connecting device, comprising a connecting tube, a push-pull plate and a pulling mechanism. Two first arc-shaped grooves are arranged on the inner tube wall of the connecting tube, and a first bayonet is arranged on the groove wall of each first arc-shaped groove. The push-pull plate is provided with asecond arc-shaped groove and a second bayonet. The pulling mechanism includes a plurality of pulling units. Each pulling unit includes a connecting rod, a first pulling claw and a second pulling claw, with the first pulling claw being fixed to one end of the connecting rod, and the second pulling claw being connected to the other end, and the first and second pulling claws being opposite. The connecting rod is rotatably arranged in the pipe wall of the connecting pipe, and a torsion spring is arranged between the connecting rod and the connecting pipe. When the torsion spring is in a naturalstate, the first claw is positioned in the first bayonet, and the second claw is positioned on one side of the second bayonet. As that technical scheme is adopt, the syringe is conveniently connectedwith the injection pen, and the burden of the patient's expense is lighten.

Description

technical field [0001] The invention relates to the field of needle-free injection, in particular to a connection device for needle-free injection. Background technique [0002] Syringes have been used in medicine for more than 300 years. Traditional syringes have brought a lot of convenience to human beings, but with the improvement of human's own living standards, there are some problems of its own, such as easy to cause the spread of infectious diseases, needle infection, shared needles, pain, long-term injection will produce subcutaneous nodules and other unfavorable factors. [0003] According to foreign reports, among the 4.4 million medical staff in the United States, 800,000 people are stabbed by needles or medical sharps every year, and 800,000 to 1 million needlestick injuries occur to nurses every year; the situation in my country is not optimistic: due to Infection cases caused by unsafe injections are increasing day by day, resulting in countless direct economi...

Claims

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Application Information

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IPC IPC(8): A61M5/30A61M5/31A61M5/50
CPCA61M5/30A61M5/31A61M5/5086
Inventor 覃万翔李雪薇
Owner THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
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