Micro-dosage safety syringe

A safety syringe and micro-dosing technology, applied in the directions of syringes, hypodermic injection devices, infusion sets, etc., can solve the problems that the syringe can not be made into a very small diameter, cannot achieve micro-control, and environmental pollution.

Inactive Publication Date: 2002-10-16
黄吴顺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this, usually using figure 1 Microdosing syringes with the needle set externally mounted on the barrel as shown; or using a method such as figure 2 As shown, the needle handle of the needle set is installed on the neck tube of the syringe, and the piston rod is provided with a gap; after the former is used, the needle cover must be put back on the needle body of the needle set, and then the The needle set is pulled out from the syringe and discarded, so that the needle body of the used needle set is not damaged, and there is a hidd

Method used

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  • Micro-dosage safety syringe
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Examples

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Embodiment Construction

[0015] like image 3 As shown, the present invention is composed of a syringe 1, a needle group 2 and a piston group 3. The syringe 1 is a cylinder body forming a hollow cavity 11. A stopper 12 is provided, and upper and lower stoppers 13, 14 are provided at the rear end of the inner circumference of the syringe 1, and the lower stopper 14 is formed at an acute angle; the front and rear ends of the needle group 2 are hollow needle bodies 21 and The needle handle 22, the front end of the needle body 21 forms a needle point 211, the needle handle 22 is elastic, and a central through hole 221 is arranged on it, and the center line is formed at the bottom of the central through hole 221. Shaped recess 222, below the tapered recess 222 is provided with a bell mouth 223 connected with it, and the outer periphery of the needle handle 22 is provided with the front end mouth 12, the rear end upper and lower seam mouths 13, 14 of the syringe 1 respectively. Fitted upper and lower groov...

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Abstract

A microdosing safety syringe. In order to provide a micro-dosage injector capable of destroying the needle and preventing the needle group from falling out of the syringe, the present invention is proposed, which consists of a syringe, a needle group and a piston group. There is a spigot; the front and rear ends of the needle group are hollow needle body and needle handle. Groove; the piston group is composed of a piston and a piston rod, and the piston is provided with a central through hole; the top surface and the outer circumference of the top of the piston rod are respectively provided with a thin rod with an arrowhead body on the top and an anti-penetration ring, and the middle outer circumference of the piston rod is provided with Locate bumps.

Description

technical field [0001] The invention belongs to a device for injecting a medium into a human body, in particular to a micro-dosage safety injector. Background technique [0002] Microdose syringes are commonly used to give tiny doses of vaccinations, insulin injections, and injections in infants. The scale on the syringe body of this micro-dose syringe must be very precise. For this, usually using figure 1 A microdose syringe with the needle set externally mounted on the barrel as shown; or figure 2 As shown, the needle handle of the needle set is installed on the neck tube of the syringe, and the piston rod is provided with a gap; after the former is used, the needle cover must be put back on the needle body of the needle set, and then the The needle set is pulled out from the syringe and discarded, so that the needle body of the used needle set is not damaged, and there is a hidden danger of polluting the environment; after the latter is used, the needle set is pulled ...

Claims

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Application Information

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IPC IPC(8): A61M5/31A61M5/50
Inventor 陈隆雄
Owner 黄吴顺
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