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Safe needle

A safety needle and needle technology, applied in the field of safety needles, can solve the problems of inability to prevent re-use of cross-infection, unfavorable blood collection or injection, poor operability of safety needles, etc. Effect

Active Publication Date: 2017-12-15
ANHUI MEDFAITH MEDICAL DEVICES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of disposable needle has the following disadvantages: first, it cannot prevent the risk of cross-infection from being reused after use; The medical staff caused infection, and at the same time, the needle cannot be locked stably after the cap is snapped back, and the cap is easy to fall off
At present, some safety needles on the market are not very operable. For example, the application number of the invention patent is 201280006699.1. This patent designs the structure of the needle cover and the protective cover. The purpose of locking, however, such needles cannot be directly operated in a horizontal position, otherwise there will be disadvantages of needle body blocking, which is not conducive to blood collection or injection operations, and a large pressing force is required to lock the needle body in the needle sleeve inside, making the operability of the safety needle poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] like Figure 1-16 As shown, the first safety needle of the present invention includes a cap 1 , a needle piece 2 , a needle seat 3 , a first sheath body 4 and a second sheath body 5 . The needle piece 2 has a needle body 21 and an inner plug 22 .

[0064] as attached figure 1 Shown: the cap (1) is a cylindrical body with one end closed and one end open, and the first sleeve body (4) and the second sleeve body (5) are both hollow tube bodies with one end open. The rear end (1) of the cap is slidably matched with the front end of the second sleeve body (5), the needle piece (2) is fixedly installed on the needle seat (3), and the first sleeve body (4) is slidingly matched with the second sleeve body (5). At the same time, the needle seat (3) is slidingly matched with the first sleeve body (4). When the safety pin is attached figure 2 Assembled as shown, the cap (1) is sleeved on the outer surface of the second sleeve body (5), the second sleeve body (5) is embedded i...

Embodiment 2

[0079] See attached manual Figure 16-23 . Another safety needle includes a cap (1), a needle piece (2), a needle seat (3) and a second sleeve body (5). The needle head piece (2) has a needle body (21) and an inner plug (22), and the needle body (21) and the inner plug (22) are integrally formed.

[0080] The cap (1) is slidably matched with the second sleeve body (5), the needle piece (2) is fixedly mounted on the needle seat (3), and the needle seat (3) is slidably matched with the second sleeve body (5).

[0081] The diameter of the front end of the cap (1) is smaller than the diameter of the rear end, and the outer surface of the front end of the cap is provided with a plurality of protrusions along the axial direction to achieve the anti-slip effect of pulling out the cap. The inner surface of the rear end of the cap and the protrusions arranged along the radial direction on the outer surface of the second sleeve body are slidably matched.

[0082] A second buckle groo...

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Abstract

The invention discloses a safe needle with a buckling groove structure, and belongs to the technical field of medical materials. The safe needle comprises a cover, a needle head part, a needle base, a second sleeve and / or a first sleeve. The cover is in sliding fit with the second sleeve, the needle head is fixedly installed in the needle base, the first sleeve is in sliding fit with the needle base, and the second sleeve is in sliding fit with the first sleeve. Buckling grooves are formed in the surfaces of the needle base and the first sleeve, the first sleeve is provided with first elastic sheets, and first hooks are arranged on the lower surfaces of the first elastic sheets; the second sleeve is provided with second elastic sheets, and second hooks are arranged on the lower surfaces of the second elastic sheets. The inclination angle of the buckling grooves is matched with the inclination angle of the hooks, so that when the safe needle is started, the first sleeve and the second sleeve outwards slide and are pulled to be locked, and the safe needle is wrapped with the sleeves. The safe needle is simple in structure, easy to operate and low in manufacturing cost, potential safe hazards are avoided, and the good popularization performance is achieved.

Description

technical field [0001] The invention discloses a safety needle with a buckle groove structure, which belongs to the technical field of medical materials. Background technique [0002] Disposable needles are usually used for injection or blood collection. Disposable needles only have a cap. This disposable needle has the following disadvantages: firstly, it cannot prevent the risk of being reused and cross-infection after use; secondly, through the method of cap rebate, because the cap rebate needle requires precise operation, otherwise it is very easy to correct The medical staff caused infection, and at the same time, the needle could not be locked stably after the cap was turned back, and the cap was easy to fall off. [0003] Safety needles refer to needles with needle protection structures designed to prevent medical staff and recycling personnel from causing stab wounds or infection with mild cold. The protective structure generally adopts the method of locking the ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158A61B5/15
CPCA61M5/158A61B5/150412A61B5/150503A61B5/150534A61M2205/273A61M2205/276Y02E60/10
Inventor 张兢
Owner ANHUI MEDFAITH MEDICAL DEVICES CO LTD
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