safety needle
A safety needle and needle body technology, applied in the field of medical devices, can solve problems such as secondary infection
Active Publication Date: 2016-04-20
GUANGDONG HAIOU MEDICAL APP STOCK
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Problems solved by technology
[0006] For this reason, the technical problem to be solved by the present invention is that after the syringe in the prior art is used, by passing the slider from the positioning concave part over the stop part and entering the locking square groove, the factory state of the syringe can be restored, so that it can be reused. It is easy to cause the problem of secondary infection, and then provide a safety needle that cannot be restored to the factory state after use, and can effectively avoid secondary infection.
Method used
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Embodiment Construction
[0033] Safety needle of the present invention, such as Figure 8 As shown, it includes a needle body 1 , a needle cover 2 matched with the needle body 1 , and a syringe 9 connected with the needle body 1 . Such as figure 1 and figure 2 As shown, the needle body 1 includes a needle head 101 and a fixing member 102; the needle sheath 2 is a hollow tube with a needle outlet 201 at one end, and a slide groove 3 is axially opened on the tube body, and the slide The groove 3 includes a longitudinal groove 301 and a transverse groove 302 which communicate with each other; the transverse groove 302 includes a positioning groove 4 and a locking groove 5 located at the bottom of the longitudinal groove 301; Slider 103, said slider 103 is suitable for sliding along said chute 3; The length of said longitudinal groove 301 is greater than or equal to the distance from said slider 103 to the needle tip, and the distance from said slide block 103 to the needle tip is greater than The dis...
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The invention discloses a safety pin which comprises a pin body, a pin sleeve and a syringe, wherein the pin sleeve is matched with the pin body; the syringe is connected with the pin body; the pin sleeve is axially provided with a chute; the chute comprises a longitudinal slot and a lateral slot which are mutually communicated; the lateral slot comprises a positioning slot and a clamping slot, wherein the positioning slot and the clamping slot are positioned on two sides of the bottom end of the longitudinal slot; one end of the pin body, which approaches to the syringe, is provided with a sliding block; the sliding block is suitable for sliding along the chute; one end of the sliding block, which faces to the clamping slot, is less than one end of the sliding block, which faces to the positioning slot; at least one of the upper side and the lower side of the opening end of the positioning slot, which faces to the longitudinal slot, is provided with a bulge; therefore, the sliding block can conveniently pass through the bulge to enter the longitudinal slot; once the sliding block slides out of the positioning slot, the sliding block can not pass through the bulge to go back to the positioning slot because one end of the sliding block, which faces to the positioning slot, is bigger; and therefore, the safety pin is not suitable to use again.
Description
technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a safety needle. Background technique [0002] At present, the syringes used in the medical industry are all disposable syringes; for disposable injection needles, after injection, it is necessary to use a professional needle destroyer to destroy the needle part to prevent secondary pollution. However, even if a needle destroyer is used, the medical staff can easily be scratched by the needle after injection, leading to virus infection, and the safety of the medical staff cannot be effectively guaranteed. [0003] For this reason, Chinese patent document CN1515328A discloses a kind of multifunctional safety trocar device, and it comprises a lengthwise cylinder base unit, a set of needle body fixed on the lengthwise cylinder base unit and a set of needle body fixed in the lengthwise cylinder base unit. A needle sheath on the periphery of the cylinder base unit...
Claims
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IPC IPC(8): A61M5/50A61M5/178
Inventor 汪贤宗
Owner GUANGDONG HAIOU MEDICAL APP STOCK