CN104740733B - Auto-disable safety syringe needle - Google Patents

Auto-disable safety syringe needle Download PDF

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Publication number
CN104740733B
CN104740733B CN 201510138838 CN201510138838A CN104740733B CN 104740733 B CN104740733 B CN 104740733B CN 201510138838 CN201510138838 CN 201510138838 CN 201510138838 A CN201510138838 A CN 201510138838A CN 104740733 B CN104740733 B CN 104740733B
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needle
hub
piston
diaphragm
end
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CN 201510138838
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Chinese (zh)
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CN104740733A (en )
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孙德重
张晓艳
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孙德重
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Abstract

本发明涉及一种自动报废安全注射器针头,本自动报废安全注射器针头包括有硬质的针管和针座;在所述针座的底端中央开设有向内延伸的、用于连接针筒的连接口;在所述底端的端面上还开设有沿所述连接口的周向等距排布的通气孔;在所述连接口的上端外周固定有与所述底端平行的、呈环形的密封膜片;在所述针座内滑动安装有与所述密封膜片平行的活塞片;所述针管垂直的固定在所述活塞片上;所述针管的尖端从针座的顶端伸出,所述针管的尾端贯穿所述活塞片;在所述活塞片上还安装有垂直指向所述密封膜片的顶针;该针头在使用一次后能够自我销毁,无法再次吸液,有效防止被回收利用。 The present invention relates to an auto-disable syringe needle safe, the needle safety syringe autodisable comprises a rigid hub and needle tube; defines a connector extending inwardly at the bottom end of the central hub for connecting the syringe mouth; end face of the bottom further defines a circumferential direction of the connection port are arranged equidistant vent; an outer periphery of the upper end of the connecting port is fixed to the bottom end of the parallel annular seal diaphragm; within the needle hub is mounted slidably in parallel with the piston diaphragm seal sheet; perpendicular to the needle tube is fixed on the piston plate; tip of the needle cannula extends from the tip of the needle hub, the the trailing end of the needle tube sheet through said piston; on the piston is mounted vertically oriented sheet further sealing diaphragm of the thimble; the needle is self-destroyed after a single use, the absorbent can not again be recycled effectively prevented.

Description

自动报废安全注射器针头 Auto-disable safety syringe needle

技术领域 FIELD

[0001] 本发明涉及一种医疗注射器,特别的,是一种针头。 [0001] The present invention relates to a medical syringe, in particular, it is a needle.

背景技术 Background technique

[0002] 为了保证输液安全、防止交叉感染,所有的针头均为一次性用品,而一些非正规医院为了节约成本常常将用过的针头进行简单的消毒处理后再次投入使用,这种做法侵害了消费者权益,更严重威胁病人的生命财产安全;目前国家虽严厉抵制和制裁这种情况,但是情况仍不乐观;同时,目前常用的针头无法做到自动销毁,而病人在就诊时也没有简单的方法来判别自己所用的针头是否为二次消毒产品。 [0002] In order to ensure transfusion safety, to prevent cross-infection, all of the needles are disposable supplies, and some non-formal hospital in order to save costs often used needle will be put into use again after simple disinfection process, this practice violates the interests of consumers, but also a serious threat to life and property safety of patients; severe at present, although the national boycott and sanctions this case, but the situation is still not optimistic; at the same time, the commonly used needle can not be done automatically destroyed while the patient when treatment is no simple way to determine whether their own use needles secondary disinfection products.

发明内容 SUMMARY

[0003] 针对上述问题,本发明提供一种自动报废安全注射器针头,该针头在使用一次后能够自我销毁,无法再次吸液,有效防止被回收利用。 [0003] For the above-described problems, the present invention provides an automatic safety syringe needles discarded, the needle can be self-destruct after a single use, the absorbent can not again be recycled effectively prevented.

[0004] 为解决上述问题,本发明所采用的技术方案是:本自动报废安全注射器针头包括有硬质的针管和针座;在所述针座的底端中央开设有向内延伸的、用于连接针筒的连接口; 在所述底端的端面上还开设有沿所述连接口的周向等距排布的通气孔;在所述连接口的上端外周固定有与所述底端平行的、呈环形的密封膜片;在所述针座内滑动安装有与所述密封膜片平行的活塞片;所述针管垂直的固定在所述活塞片上;所述针管的尖端从针座的顶端伸出,所述针管的尾端贯穿所述活塞片;在所述活塞片上还安装有垂直指向所述密封膜片的顶针。 [0004] In order to solve the above problem, the technical solution employed in the present invention are: The auto-disable safety syringe comprises a needle tube and a rigid needle hub; defines inwardly extending in the bottom center of the hub, with connecting the syringe to the connecting port; an end face of said bottom further defines a circumferential direction of the connection port are arranged equidistant vent; an outer periphery of the upper end of the connecting port is secured in parallel with the bottom end , the annular sealing diaphragm; within the needle hub is mounted slidably in parallel with the piston diaphragm seal sheet; perpendicular to the needle tube is fixed on the piston plate; tip of the needle cannula from the hub extending to the top, trailing end of the needle tube sheet through said piston; on the piston plate further mounted vertically directed thimble of the sealing diaphragm.

[0005] 本发明的有益效果是:自然状态下所述膜片呈干燥状态,具有较好的弹性和硬度, 同时所述顶针不与密封膜片接触;在使用时,液体从针管进入针座,液体从针管的尾端流出并填充到活塞和密封膜片之间,最后通过连接口流进针筒,此时的密封膜片因被液体浸润而变得脆弱;在注射时针管扎进皮肤,皮肤和组织的反作用力使所述活塞片沿针座侧周壁向内滑动,此时顶针向密封膜片运动并将密封膜片刺破;但由于顶针堵住密封膜片上的破损处,针头仍保持密封;在输液结束后将针头拔出皮肤时,皮肤和组织的阻力使活塞片沿针座侧周壁向外滑动,此时顶针随活塞片退回原位置,顶针被拉回,所述密封膜片上的破损处暴露;如果再次使用本针头吸取液体时,外界的空气将从所述通气孔进入针头内部并流进连接口,即针筒内形成不了负压,无法再次吸取液 [0005] Advantageous effects of the present invention are: the natural state of the membrane in a dry state, has good flexibility and hardness, while the thimble is not in contact with the sealing diaphragm; In use, the liquid from the needle into the needle hub , the liquid flows out from the trailing end of the needle tube and filled into sealing between the piston and the diaphragm, and finally flows into the syringe through the connecting port, in this case the sealing membrane by the liquid infiltration being fragile; headlong into the injection tube clockwise skin , the skin and tissue reaction of the side peripheral wall of the piston plate slides inwardly along the hub, to pierce a sealing diaphragm case thimble and the motion of the diaphragm seal; however, due to the breakage of the block on thimble seal diaphragm, needle remains sealed; in the after end of infusion needle out of the skin, skin and tissue drag of the side peripheral wall of the piston along the hub outward sliding plate, this time with the piston sheet thimble retracted home position, the thimble is retracted, the breakage on the seal diaphragm is exposed; if reused needles draw liquid present, the outside air from the vent hole into the interior of the needle and into the connection opening, i.e. not a negative pressure within the barrel, again can not draw liquid 体;如果再次使用本针头注射液体,针筒内的液体将从密封膜片的破损处流出,无法再次输液。 Body; If using needles to inject again the liquid, the liquid flows out from the inner barrel seal diaphragm breakage can not be re-infusion.

[0006] 本发明结构精巧,在使用一次后即自动报废,有效防止不正规医生的不规范操作, 从源头上解决了针头的反复使用问题,进而有效防止针头的交叉感染,有效保障了人们的生命财产安全。 [0006] delicate structure of the present invention, after a single use auto-disable, effectively preventing abnormal operations without the regular doctor to solve the problem of repeated use of needles from the source, thereby effectively preventing the needle cross-infection, effective protection of people's lives and property.

[0007] 作为优选,在所述针管的尾端还套设有环形挡板;当顶针刺破密封膜片时,该环形挡板能够堵住并密封连接口,保证从连接口流出的液体完全从针管内流入人体;同时该^ 形挡板还起到限位作用,有效防止针管回缩太长距离,造成扎针深度不够。 [0007] Advantageously, the trailing end of the needle tube is also provided with an annular baffle plate cover; thimble when punctured seal diaphragm, the annular baffle and seal the connecting port can be blocked to ensure that the liquid flows from the connecting port entirely It flows from the needle body; the same time also functions as a stopper ^ shaped baffle effect, prevent retraction of the needle tube is too long distance, resulting in an acupuncture treatment deep enough.

[0008] 作为优选,在所述密封膜片和针座底端所围成的环形空间内填充有固态干燥剂; 以便于保证密封膜片的干燥,进而延长本发明的使用寿命。 [0008] Advantageously, in the bottom end of the needle hub and the sealing diaphragm surrounded by the annular space is filled with a solid desiccant; dried in order to ensure the sealing diaphragm, and thus extend the life of the present invention.

[0009] 作为优选,在所述固态干燥剂内混合有变色粉末;如无水硫酸铜、变色油墨等;当针头使用一次后,液体通过破损的密封膜片接触变色粉末,此时针座变色,该结构能够方便的区分哪些针头被使用过,也方便病人协助监督,防止医生忙中出错、使用错误。 [0009] Advantageously, in the solid-state color powder is mixed with a desiccant; such as anhydrous copper sulfate, ink and other color; when the needle after a single use, the powder color liquid contact by the sealing diaphragm breakage, in which case the needle hub discoloration, the structure can easily distinguish which needles are used, but also convenient for patients to assist in monitoring, preventing doctors busy in the wrong, wrong use.

附图说明 BRIEF DESCRIPTION

[0010] 图1为本自动报废安全注射器针头一个实施例的截面结构示意图。 [0010] Figure 1 is a syringe needle safety autodisable schematic cross-sectional structure of an embodiment.

具体实施方式 detailed description

[0011] 实施例 [0011] Example

[0012] 在图1所示的实施例中,本自动报废安全注射器针头包括有硬质的针管1和针座2; 在所述针座2的底端中央开设有向内延伸的、用于连接针筒的连接口3;在所述底端21的端面上还开设有沿所述连接口3的周向等距排布的通气孔211;在所述连接口3的上端外周固定有与所述底端21平行的、呈环形的密封膜片4;在所述密封膜片4和针座2底端21所围成的环形空间内填充有固态干燥剂5;在所述固态干燥剂5内混合有变色粉末;在所述针座2内滑动安装有与所述密封膜片4平行的活塞片6;所述针管1垂直的固定在所述活塞片6上;所述针管1的尖端11从针座2的顶端伸出,所述针管1的尾端12贯穿所述活塞片6,在所述针管1的尾端12还套设有环形挡板13,该环形挡板13的半径大于所述连接口3的半径;在所述活塞片6上还安装有垂直指向所述密封膜片4的顶针61。 [0012] In the embodiment illustrated in Figure 1, the auto-disable syringe needle safety needle comprises a rigid tube 1 and hub 2; extending inwardly defines the bottom end of the central hub 2 for a connection port connected to the barrel 3; at the bottom end surface 21 further defines a connection port 3 along the circumferential direction of the vent holes 211 equidistantly arranged; and an outer periphery fixed to an upper end of the connecting port 3 the bottom end 21 in parallel, annular sealing diaphragm 4; 4 in the sealing diaphragm and the filling 21 inside the bottom end of the hub 2 is surrounded by an annular space with a solid desiccant 5; drying agent in the solid state 5 color mixed powder; 2 within the hub slidably mounted parallel to the sealing diaphragm plate 4 of the piston 6; the needle tube 1 is fixed to the vertical plate 6 on the piston; the needle cannula 1 extending from the distal tip 11 of the needle holder 2, 6 of the trailing end 12 of the needle tube through the piston plate, the tail end 12 of the needle tube 1 is also provided with an annular cover plate 13, the annular baffle 13 radius larger than the radius of the connection port 3; on the piston 6 is also equipped with a vertical sheet towards said ejector pin 614 of the diaphragm seal.

[0013]自然状态下所述膜片呈干燥状态,具有较好的弹性和硬度,同时所述顶针61不与密封膜片4接触;填充在密封膜片4和针座2底端21所围成的环形空间内的固态干燥剂5能够长久的保持密封膜片4的干燥性,进而延长本发明的使用寿命。 [0013] the natural state of the membrane in a dry state, has good flexibility and hardness, while the thimble 61 is not in contact with the sealing diaphragm 4; 4 filled in the diaphragm seal and the bottom end of the needle hub 21 surrounded 2 5 in the solid desiccant into the annular space can be maintained long-term sealing of the membrane 4 was dried, thereby extending the service life of the present invention.

[0014] 在吸取液体时,液体从针管1进入针座2,液体从针管1的尾端12流出并填充到活塞片6和密封膜片4之间,最后通过连接口3流进针筒,此时的密封膜片4虽能够起到密封作用, 但是因被液体浸润而变得脆弱;在扎针时,针管1扎进皮肤,皮肤和组织的反作用力使所述针管1回缩一定距离,进而带动所述活塞片6沿针座2侧周壁向内滑动,此时顶针61向密封膜片4运动并将密封膜片4刺破;但由于顶针61堵住密封膜片4上的破损处,密封膜片4仍处于密封状态,针头仍保持密封;另外,由于环形挡板13的半径大于所述连接口3,在针管1回缩时,环形挡板13能够堵住并密封连接口3,保证从连接口3流出的液体完全从针管1内流入人体;同时该环形挡板13还起到限位作用,有效防止针管1回缩太长距离,造成扎针深度不够。 [0014] In the dispensing of liquids, fluid from the needle into the needle hub 12, the liquid flows out from the rear end of the needle tube 12 of the piston 4 is filled between the diaphragm and the sealing sheet 6, and finally flows through the connection port 3 into the syringe, at this time, although the diaphragm 4 can be sealed the sealing function, but is wetted by liquid fragile; during needling, a headlong into the skin, the skin and tissue of the reaction tube so that the needle is retracted a distance from the needle cannula 1, 6 so as to drive the hub 2 along the side of the sliding piston plate inwardly of the peripheral wall, the seal diaphragm 61 to the thimble case 4 and the sealed diaphragm 4 puncturing movement; but the ejector block 61 on the sealing diaphragm breakage 4 sealed diaphragm 4 remains in the sealed state, the needle remains sealed; Further, since the radius of the annular baffle plate 13 is larger than the connecting port 3, when the needle 1 is retracted, the annular baffle plate 13 and the sealing block can be connected to port 3 to ensure complete flows from the syringe body 1 from the liquid outflow port 3 is connected; while the annular baffle 13 also functions as a limiting effect, prevent the needle 1 is retracted too long distance, resulting in an acupuncture treatment deep enough. [0015] 在输液结束后将针头拔出皮肤时,皮肤和组织的阻滞力拉扯针管1,使得活塞片6 沿针座2侧周壁向外滑动,此时顶针61随活塞片6退回原位置,由于顶针61被拉回,所述密封膜片4上的破损处暴露;残留在针头的液体通过破损的密封膜片4接触变色粉末,从而使针头变色;该变色粉末能够方便的区分哪些针头被使用过,也方便病人协助监督,防止医生忙中出错、使用错误。 [0015] at the end of the infusion needle is pulled out after the skin, the skin and tissue of the retarding force to pull the needle 1, so that the piston sliding sheet 6 along the outer peripheral wall of the needle holder 2 side, when the thimble 61 with the piston sheet 6 returned to the original position Since the thimble 61 is pulled back, the breakage of the sealing membrane 4 is exposed; liquid remaining in the needle by the sealing contact with the membrane 4 discoloration powder is damaged, so that discoloration of the needle; the color powder which can easily distinguish a needle It has been used, but also convenient for patients to assist in monitoring, preventing doctors busy in the wrong, wrong use.

[0016] 如果再次使用本针头吸取液体时,外界的空气将从所述通气孔211进入针头内部并流进连接口3,即针筒内形成不了负压,无法再次吸取液体;如果针筒内还留有液体,再次使用本针头注射液体时,针筒内的液体将从密封膜片4的破损处流出,无法再次输液。 [0016] If the re-use of this needle to draw liquid from the outside air vent hole 211 into the interior of the needle and into the connecting port 3, i.e. not a negative pressure within the syringe, the liquid can not be re-draw; if the syringe also remains liquid, an injection needle when using the liquid again, the liquid in the effluent from the barrel 4 at a sealing diaphragm breakage can not be re-infusion. L〇〇17」本友明h构精巧,在使用一次后即自动报废,有效防止不正规医生的不规范操作, 从源头上解决了针头的反复使用问题,进而有效防止针头的交叉感染,有效保障了人们的生命财产安全;同时本发明在使用前后有明显的颜色变化、方便区分。 L〇〇17 "the Friends of the Ming h compact structure, after a single use auto-disable, prevent irregular doctors are not standardized operation to solve the problem of repeated use of needles from the source, so as to effectively prevent cross-infection of the needle, effective to protect people's lives and property; while the present invention has a distinct color change before and after use, easy to distinguish.

[0018]以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。 [0018] The foregoing is only preferred embodiments of the present invention, not intended to limit the present invention within the spirit and principle of the present invention, any modification, equivalent replacement, or improvement, it should be included in the present within the scope of the invention.

Claims (4)

  1. 1. 一种自动报废安全注射器针头,其特征在于:本自动报废安全注射器针头包括有硬质的针管(1)和针座(2);在所述针座(2)的底端(21)中央开设有向内延伸的、用于连接针筒的连接口(3);在所述底端(21)的端面上还开设有沿所述连接口(3)的周向等距排布的通气孔(211);在所述连接口(3)的上端外周固定有与所述底端(21)平行的、呈环形的密封膜片(4);在所述针座(2)内滑动安装有与所述密封膜片(4)平行的活塞片(6);所述针管(1)垂直的固定在所述活塞片(6)上;所述针管(1)的尖端(11)从针座(2)的顶端伸出,所述针管(1) 的尾端(12)贯穿所述活塞片(6);在所述活塞片(6)上还安装有垂直指向所述密封膜片(4) 的顶针(61)。 An automatic safety syringe needle scrap, characterized in that: the present autodisable needle safety syringe comprises a rigid needle (1) and the needle hub (2); at the bottom end of the hub (2) (21) defines a central inwardly extending for connection port (3) connected to the syringe; at the bottom end (21) further defines an end surface direction of the connection port (3) is arranged circumferentially equidistantly vent (211); an outer periphery of the upper end of the connecting port (3) is fixed to the bottom end (21) parallel to the annular seal diaphragm (4); a slide (2) in the hub the sealing membrane is attached (4) parallel to the piston plate (6); said needle (1) is vertically fixed to the piston plate (6); tip of the needle cannula (1) (11) from the top of the needle hub (2) projecting the trailing end of the needle tube (1) (12) through the piston plate (6); said further directed vertically mounted on the piston diaphragm seal sheet (6) (4) a thimble (61).
  2. 2. 根据权利要求1所述的自动报废安全注射器针头,其特征在于:在所述针管(1)的尾端(12)还套设有环形挡板(13)。 2. The safety syringe as claimed in claim autodisable needle claim 1, wherein: the tail end of said needle cannula (1) (12) also sets an annular baffle plate (13).
  3. 3. 根据权利要求1或2所述的自动报废安全注射器针头,其特征在于:在所述密封膜片(4) 和针座(2)底端(21)所围成的环形空间内填充有固态干燥剂(5)。 The automatic safety syringe needle or the scrap 1 or 2, characterized in that claim: within the sealing diaphragm (4) and the needle hub (2) bottom (21) surrounded by the annular space is filled with solid desiccant (5).
  4. 4. 根据权利要求3所述的自动报废安全注射器针头,其特征在于:在所述固态干燥剂(5) 内混合有变色粉末。 According to claim autodisable needle safety syringe according to 3, wherein: the solid state in the desiccant (5) mixed with color powder.
CN 201510138838 2015-03-27 2015-03-27 Auto-disable safety syringe needle CN104740733B (en)

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Application Number Priority Date Filing Date Title
CN 201510138838 CN104740733B (en) 2015-03-27 2015-03-27 Auto-disable safety syringe needle

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CN104740733A true CN104740733A (en) 2015-07-01
CN104740733B true CN104740733B (en) 2017-12-08

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CN 201510138838 CN104740733B (en) 2015-03-27 2015-03-27 Auto-disable safety syringe needle

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GB201210628D0 (en) * 2012-06-15 2012-08-01 Oelz Alexander M Oral medicine dispensing system

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