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A Needle-Free Injector

A needle-free syringe and alarm technology, applied in the field of medical devices, can solve the problems of high production cost, inconvenient operation of needle-free syringes, and small use range, etc., and achieve the effect of easy and labor-saving work, low production cost, and easy implementation

Active Publication Date: 2017-01-18
SUZHOU CHUANGMING SOFTWARE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a needle-free injector with scientific structure, convenient operation, rapid and continuous injection to realize large-dose drug injection. high cost etc.

Method used

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  • A Needle-Free Injector
  • A Needle-Free Injector
  • A Needle-Free Injector

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Experimental program
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Effect test

Embodiment Construction

[0063] see Figure 1-4 As shown, a needle-free injector disclosed in the present invention is mainly composed of five parts: a gun body, a ram assembly, a circular drag assembly, a trigger assembly and a terminal injection assembly.

[0064] Among them, see Figure 1-6 And shown in 9, described gun body is made of fixedly connected gun frame 8 and gun barrel 5; Gun barrel 5 is provided with cylindrical gun chamber 14, and the both sides of gun housing 14 are respectively provided with a side that communicates with it. Cavity 15, the front end of gun barrel 5 is fixed with thread head 11 through neck pipe 9, and the observation window 4 with scale 10 is arranged on the side wall of neck pipe 9, the inner chamber of neck pipe 9, the inner chamber of thread head 11 and gun bore 14 three Coaxial, and the inner diameter of the neck tube 9 is smaller than the gun bore 14; The driving cavity 13; the gun body is the skeleton of the needle-free injector, which is used to provide work...

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Abstract

The invention discloses a needle-free injector, which consists of a gun body, a hammer assembly, a circulation drag assembly, a trigger assembly and a terminal injection assembly. The gun body is composed of a gun frame and a barrel, and is used to provide supporting and operating space for other components. The hammer assembly is composed of a hammer body, an elastic rope and a pressing-type alarm device, which provides impact force for the terminal injection assembly through the axial movement of the hammer body in the barrel. The circulating drag component is positioned in the driving chamber to drive the hammer assembly to reach the chamber and to control the trigger of the hammer body. The trigger assembly is used for driving the circulation drag component to operate; the terminal injection assembly is constituted by a cartridge, a piston and a push rod, and is powered by the hammer assembly to realize the needle-free injection. Advantages: the needle-free injector has scientific and reasonable structure, convenient to hold, easy to operate, and it can achieve multiple successive injections of large-dose medicine, thus expands the application range of needle-free injector in clinical injection field. It is convenient to apply, with high utilization rate and low production cost.

Description

technical field [0001] The invention relates to a medical device, in particular to a needle-free injector capable of continuous multiple injections to realize large-dose injection of medicine. Background technique [0002] Needle-free injection is a new technology that relies on needle-free injectors to make liquid medicine directly enter the body tissue in the form of ultra-fine, high-speed, and straight-line high-pressure jets, without needle puncture to achieve the purpose of drug injection. Compared with the traditional injection technology in the past, needle-free injection does not require a needle to puncture the body, which reduces the pain and fear of drug injection, reduces the risk of bacterial infection, avoids the occurrence of accidents such as needle scratches and breaks, and improves the efficiency of drug injection. Convenience and safety of operation; at the same time, when using needle-free injection, the drug enters subcutaneously in a diffuse form, dispe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/303A61M5/31
CPCA61M5/30A61M5/31A61M5/31531A61M5/31548A61M2005/3125A61M2205/18A61M2205/586
Inventor 王才丰
Owner SUZHOU CHUANGMING SOFTWARE TECH CO LTD
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