Skin pricking needle
A technology of skin points and needles, which is applied in the fields of inoculation, ovulation diagnosis, medical science, surgery, etc. It can solve the problems of unsure of the depth of needle penetration, influence of test results, and slow detection efficiency, so as to avoid scratching the skin and improve detection efficiency. , The effect of low manufacturing cost
Inactive Publication Date: 2013-12-25
温州医学院附属第二医院
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Problems solved by technology
However, for operators, especially beginners, the depth of needle penetration is often uncertain, and the penetration is too shallow to pierce the skin, which may lead to false negative results
If the penetration is too deep, the pain will be strong, and the penetration into the dermis will cause bleeding, which will affect the test results, so that the operator cannot let go during the operation, and the detection efficiency will be too slow
Method used
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Embodiment Construction
[0014] like figure 1 , figure 2 , image 3 As shown, an embodiment of a skin pricking needle according to the present invention includes a strip-shaped needle body 1, a limiting piece 2, and the limiting piece 2 has a through hole 4 and includes an extended fixed edge 2-1 and a limiting Side 2-2, the needle body 1 penetrates the through hole 4 of the limiting piece 2, and is fixed on the needle body 1 by welding the extended fixed side 2-1 of the limiting piece 2, and the outside of the limiting side 2-2 There is a transition round corner fold 2-3, the upper edge of the transition round corner fold 2-3 on the limit side 2-2 shrinks inward, and the needle body 1 includes a needle head 1-1 and a needle bar 1-2 , the needle head 1-1 is a conical needle head 1-1, the needle bar 1-2 is a cylindrical needle bar 1-2, the bottom surface of the stopper 2 is located at the connection between the needle head 1-1 and the needle bar 1-2 , the tail of the needle body 1 is provided with ...
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The invention relates to a skin pricking needle, and provides the skin pricking needle which is easy to control skin pricking depth, causes little pain, and has accurate test results and high detection efficiency. The skin pricking needle comprises an elongated needle body and a limiting piece; the limiting piece is provided with a through hole and comprises an extension fixing edge and a limiting edge; the needle body penetrates into the through hole of the limiting piece; the extension fixing edge of the limiting piece is fixed on the needle body by welding; a wrinkle with a transition fillet is formed outside the limiting edge; when a skin allergy prick test is performed, the pricking needle cannot prick into a corium layer, so that bleeding can be avoided; therefore, an accurate test result is obtained, and the detection efficiency of an operator is greatly improved; moreover, the welding contact area is large enough, so that the limiting piece is installed on the needle body more firmly; in addition, the skin pricking needle is simple in structure and low in manufacturing cost.
Description
technical field [0001] The invention relates to a needle, in particular to a skin pricking needle. Background technique [0002] The existing human skin allergy test mainly obtains the required data through the skin prick test. At present, the skin prick allergen is mainly used in clinical practice-disinfect the patient's bilateral forearms, and drop it on the inside of the forearm every 3-5cm. One drop of allergen drug solution (about 20 kinds), and dripped with histamine positive control and normal saline negative control, puncture the skin vertically with a disposable needle in the center of the drug solution to subcutaneous, observe for 20 minutes, and compare with the histamine group and saline group Compare and record the location and size of the wheal. However, for operators, especially beginners, the depth of needle penetration is often uncertain, and the penetration is too shallow to pierce the skin, which may lead to false negative results. If the puncture is too...
Claims
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Inventor倪丽艳廖诗雨
Owner温州医学院附属第二医院