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Electromagnetic continuous needleless injector with dose and injection depth adjusting faction

A needle-free injector, electromagnetic technology, applied in the field of medical devices, can solve the problems of complex structure, high manufacturing cost, and no mention of adjusting injection dose and injection depth

Inactive Publication Date: 2012-09-05
BEIJING QS MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Electromagnetically driven needle-free injectors have many patents approved in China, but most of them can only be injected once.
Electromagnetically driven continuous injection needle-free injectors are rarely approved in China, but there are still many shortcomings and deficiencies
For example: 200910153212.2 Continuous needle-free injection system driven by electromagnetic force, the structure in this patent is too complicated, the manufacturing cost is high, and there is no mention of adjusting the injection dose and injection depth

Method used

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  • Electromagnetic continuous needleless injector with dose and injection depth adjusting faction
  • Electromagnetic continuous needleless injector with dose and injection depth adjusting faction
  • Electromagnetic continuous needleless injector with dose and injection depth adjusting faction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] see figure 1 , figure 2 As shown, the continuous injection needle-free syringe with electromagnetic adjustable dose and injection depth mainly includes drug tube (1), drug guiding tube (2), push rod (3), safety switch (4), drug (5) , medicine bottle (6), coil (7), dose adjustment auxiliary button (8), stop block (9), return spring (10), shell (11), iron core (12), power cord (13), Control circuit (14), injection button (15).

[0017] see image 3 As shown, the drug tube (1) includes: a drug tube head (1-1), an injection check spring (1-2), an injection check ball (1-3), a medicine withdrawal check ball (1-4), Take the medicine return stop spring (1-5), take the medicine joint (1-6), medicine tube wall (1-7), piston (1-8), sealing body (1-9).

[0018] see figure 2 , during injection, press the injection button (15), provide a direct current voltage to the coil (7) through the control circuit (14), make the coil (7) generate a magnetic field, and the magnetic field...

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Abstract

The invention provides an electromagnetic continuous needleless injector with a dose and injection depth adjusting faction. The injector mainly comprises the following parts: a drug tube, coils, an iron core, a dose adjusting device and an electronic control system, wherein the drug tube is used for carrying and injecting drugs. The injector depends on the electromagnetic coils and the iron core to provide driving forces, realizes continuous injection through working of two check valves, adjusts the injected dose by relatively rotating the iron core and a stop and adjusts the injection depth by adopting a switch arranged on a shell to adjust the voltage output by a control circuit. The injector has the advantages of small product volume, light weight, simple structure, large single injected dose and low production cost.

Description

technical field [0001] This patent relates to the technical field of medical devices, and is a needle-free injector used for continuous injection of liquid medicine for human or animal injection. Background technique [0002] A needle-free syringe is an injection device that pressurizes liquid medicine through an external power source, and makes the liquid medicine pass through very fine micropores at high pressure and high speed, penetrate the skin, and enter the body. Liquid medicine can directly penetrate human or animal skin and enter the body without a needle. [0003] The needle-free injector for continuous injection is a needle-free injector that can connect a large-volume medicine bottle and a needle-free injector through a drug channel, and can automatically take medicine after injection to prepare for the next injection. Continuous automatic needle-free injectors can achieve high-efficiency injections. For example, it is used in collective liquid drug immunizatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/303
Inventor 赵延辉
Owner BEIJING QS MEDICAL TECH
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