Safety self-destructive intravenous infusion needle
An intravenous infusion needle, self-destructing technology, applied in the field of medical devices, can solve the problems of high independence of the stop structure, influence on assembly and use, no synergy, etc., achieve simple and easy breaking operation, and prevent the return of the puncture needle , to avoid the effect of accidental puncture
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[0038] like Figure 1~9 As shown in the figure, a safe self-destruction type intravenous infusion needle disclosed in the present invention includes a protection tube 1, a puncture needle 2, a self-destruction mandrel 3 and a needle seat 4; The tube 1 is a hollow casing, the self-destruction mandrel 3 is inserted into the protection tube 1 and can slide, one end of the self-destruction mandrel 3 is the infusion end connected to the infusion catheter, and the infusion end of the self-destruction mandrel 3 passes through the protection tube 1. , the other end of the self-destructing mandrel 3 is connected to the needle seat 4 ; the puncture needle 2 is installed on the needle seat 4 .
[0039] The self-destructing mandrel 3 and the needle seat 4 are integrally formed, the end of the connecting end of the self-destructing mandrel 3 and the needle seat 4 is tapered, and the tapered end 31 on the self-destructing mandrel 3 is axially facing the needle seat. 4. One end is small an...
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