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Syringe needle protecting structure

A protective structure, technology of injection needles, applied in the direction of hypodermic injection devices, needles, devices introduced into the body, etc.

Inactive Publication Date: 2008-09-17
陈昌慈
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Known injection needle protection structures, many patents have been obtained. Taking US Patent No. 5,338,310 as an example, it discloses a syringe assembly, which consists of a needle that can fit into the barrel 21 A needle guard 32, the inner wall of the needle guard is provided with a recess (recess) 37, and another collar 33 is set to fit on the syringe body, and the collar is provided with a corresponding projection (projection) 34 is used for the catch in the groove when it is pulled back after injection, that is, it is not involved in the injection needle and the setting of the relay device through the mutual cooperation between the injection cylinder body and the protective sleeve

Method used

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Experimental program
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Embodiment Construction

[0028] As shown in FIG. 1 , FIG. 2 and FIG. 3 , basically, the protective structure of the present invention is composed of a sleeve 1 , a relay base 2 and a card base 3 .

[0029] Among them, the sleeve 1 is composed of a cylinder body 11 with a smaller outer diameter, and the bottom is connected with a cylinder seat 12 with a larger outer diameter, which is called a connection, but it is not limited to a plurality of connecting pieces 13 distributed around the periphery Connect, and make each adjacent connecting piece 13, form the perforation of connecting hole 14.

[0030] The front end of the barrel body 11 forms a barrel mouth 17 with a smaller diameter than its inner barrel chamber 16 (shown in Figure 4 ), and at the inner end of the cylinder seat 12, a number of arc-shaped protrusions 18 (shown in Figure 2) protrude inward, and on its outer wall, a number of parallel reinforcing ribs must be set, which is the only known technology, so it is not intended to be praised. ...

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Abstract

The syringe needle protecting structure includes one sleeve with one relatively small barrel and one connected relatively large barrel seat; one relay seat with one relatively small pipe, one relatively large skirt, one central front pin and one central back pin; and one clamping seat with upper clamping hooks and lower clamping edge for locating the clamping seat to the barrel seat. The relay seat is set inside the barrel chamber, the liquid outlet pipe of the injecting barrel is embedded to the hole for the back pin, and the injection needle is connected to the front pin, so as to medicine liquid passage. in withdrawal after injection, the relay seat together with the injection needle seat is turned backwards and located.

Description

technical field [0001] The present invention is a protective structure for injection needles, especially a relay structure arranged between the injection needle and the injection cylinder, which has a protective structure that prevents the injection needle from being taken out and used again when it is pulled back after injection. . Background technique [0002] According to people who eat whole grains, sickness is inevitable, and birth, old age, sickness and death are the laws of nature. Of course, with the improvement of sanitation and the advancement of medicine, many diseases can be treated by medical behavior, and injection of medicinal liquid is a must in medical behavior. missing link. [0003] On the other hand, in the course of medical treatment, safety protection must not be taken lightly, especially in recent years, many high-risk causes can be infected through blood. Therefore, for medical personnel, the injection behavior must be cautious and fearful. If there ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/50A61M5/32
CPCA61M5/3243A61M2005/3253A61M2005/3247
Inventor 陈昌慈
Owner 陈昌慈
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