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Needleless syringe

A syringe and needle-free technology, applied in syringes, auto-injectors, hypodermic instruments, etc., can solve the problems of skin tissue damage and inability to inject medicines evenly for multiple times.

Active Publication Date: 2022-01-28
巴兹生物医学株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the existing needleless injector is configured to inject a predetermined amount of medicine into only one place of the skin at a time, it may cause damage to the skin tissue, etc.
[0005] In addition, due to the inconvenience of reloading after one injection, there is a limitation that it cannot be used to uniformly inject the drug multiple times into a large area of ​​skin in the field of skin beauty

Method used

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Examples

Experimental program
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Embodiment Construction

[0041] Hereinafter, embodiments of the present invention will be described below with reference to the drawings.

[0042] figure 1 is a schematic longitudinal sectional view showing the needleless syringe according to the first embodiment of the present invention.

[0043] see figure 1 According to the first embodiment of the present invention, the needleless syringe 100 includes: a main body 10, a cylinder 20, an electromagnetic coil 30, a movable magnetic body 90, an elastic member 110 for a movable magnetic body, a piston 40, a nozzle opening and closing valve 50, The driving member 60 and the stopper 70 are advanced forward and backward.

[0044] The needle-free injector 100 is an impact injector in which when the movable magnetic body 90 moves forward by the magnetic force generated by the electromagnetic coil 30 , the movable magnetic body 90 strikes the piston 40 to make the piston 40 move forward.

[0045] The main body 10 is formed in a hollow shape and extended in...

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PUM

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Abstract

A needleless syringe according to the present invention is configured to move a movable magnetic body and a piston forward by a magnetic field generated by current supplied to a solenoid coil and, when current is blocked to the solenoid coil, allow an elastic member for the movable magnetic body to move the movable magnetic body backward and allow an elastic member for a piston to move the piston backward so that the piston for pressurizing and injecting a drug can repeatedly and reciprocally move forward or backward, thereby rapidly and repeatedly injecting a predetermined drug. Moreover, the present invention minimizes, through controlling of a time of applying current to the solenoid coil, recoil without need to add a separate recoil offset structure thereto, and thus can improve convenience in use while having a simple structure.

Description

technical field [0001] The present invention relates to a needle-free injector, and more specifically relates to a needle-free injector capable of repeatedly injecting medicine at high speed without an injection needle. Background technique [0002] Generally, a syringe refers to a device for injecting a medical solution into a living tissue. The syringe consists of a needle inserted into the body, a syringe containing the liquid medicine, and a piston that moves back and forth inside the syringe to push the liquid medicine through the needle. The needle has a needle hole to inject the drug when injected. [0003] Recently, in order to eliminate the fear of the needles of the syringes and to prevent infections caused by the needles, the research and development of needle-free syringes is actively progressing. [0004] However, since the existing needleless injector is configured to inject a predetermined amount of medicine into only one place of the skin at a time, it may ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/307A61M5/20A61M5/31A61M5/315
CPCA61M5/30A61M5/20A61M5/31A61M5/31578A61M5/31536A61M2005/31588A61M5/204A61M2005/3115A61M2005/3128A61M5/3148A61M5/31505A61M2005/3154A61M5/31538A61M5/31595A61M5/3007A61M2205/8287A61M2205/8281A61M5/31511A61M5/31501A61M2205/106A61M2205/366A61M2205/3606A61M5/31581
Inventor 金正国李性宪咸辉灿
Owner 巴兹生物医学株式会社
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