CN114306815A - Prevent stabbing insulin pen - Google Patents

Abstract

The invention provides an anti-stab insulin pen, and belongs to the technical field of insulin pens. The prior art is easy to stab. The injection push key is characterized in that an extension rod is arranged on the top of the injection push key in an upward mode, the penetrating channel is used for containing an insulin pen, the puncture-proof device comprises a button and a switching device, the top end of the button extends out of the puncture-proof shell from the penetrating channel, the bottom end of the button penetrates through the clamping ring and abuts against the top of the rotating ring, a movable channel penetrates through the button and is communicated with the penetrating channel, the extension rod extends out of the movable channel in an upward mode, the extension rod and the button are not interfered with each other, dislocation devices are symmetrically arranged on two sides of the side wall of the lower portion of the penetrating channel at the bottom of the rotating ring and are used for driving a needle head to be separated from the pen body, and in a first state, the needle head extends out of the bottom of the puncture-proof shell; in the second state, the needle is retracted into the puncture-proof shell; in a third state, the dislocation device drives the needle head to be separated from the pen body; the button is used for people to press so as to control the switching device to work, and the first state, the second state and the third state are sequentially switched and circulated. Preventing puncture.

Description

Translated fromChinese

一种防刺伤胰岛素笔A stab-proof insulin pen

技术领域technical field

本发明属于防刺伤胰岛素笔技术领域，特别涉及一种防刺伤胰岛素笔。The invention belongs to the technical field of stab-resistant insulin pens, in particular to a stab-resistant insulin pen.

背景技术Background technique

胰岛素笔免去病友用注射器在胰岛素药瓶中抽取胰岛素的烦琐过程，可免去病友在公共场合注射胰岛素的尴尬，为视力不佳甚至失明的病友注射胰岛素带来方便。The insulin pen eliminates the tedious process of using a syringe to draw insulin from the insulin bottle, saves the patient from the embarrassment of injecting insulin in public, and brings convenience to patients with poor vision or even blindness to inject insulin.

现有技术中，胰岛素笔的针头和防刺伤胰岛素笔的笔芯通过螺纹连接，医护人员为患者注射完胰岛素之后，需要用手将针头旋下，容易发生刺伤。In the prior art, the needle of the insulin pen and the refill of the anti-stab insulin pen are connected by threads. After the medical staff injects insulin for the patient, they need to unscrew the needle by hand, which is prone to stab wounds.

发明内容SUMMARY OF THE INVENTION

本发明的目的是针对现有技术中存在的上述问题，提供了一种防刺伤胰岛素笔。The purpose of the present invention is to provide a stab-proof insulin pen in view of the above problems existing in the prior art.

本发明的目的可通过下列技术方案来实现：一种防刺伤胰岛素笔，其特征在于，包括防刺机构、胰岛素笔及针头，所述胰岛素笔包括笔体及注射推键，所述针头与所述笔体的底部可拆卸连接，所述注射推键顶部向上设置有延伸杆，所述防刺机构包括防刺壳体及设置于防刺壳体内的防刺装置，所述防刺壳体包括可拆卸设置的上壳体和下壳体，所述防刺壳体贯穿设置有穿设通道，所述穿设通道用于容纳所述胰岛素笔，所述防刺装置包括按钮及切换装置，所述按钮顶端自穿设通道伸出所述防刺壳体，所述按钮底端穿过所述卡接环抵接在所述转动环顶部，所述按钮贯穿设置有活动通道，所述活动通道与所述穿设通道连通，所述延伸杆从所述活动通道向上伸出，所述延伸杆与所述按钮互不干涉，所述转动环的底部的所述穿设通道下部侧壁两侧对称设置有脱位装置，所述脱位装置用于带动所述针头脱离所述笔体，第一状态，所述针头从所述防刺壳体底部伸出；第二状态，所述针头缩回到所述防刺壳体内；第三状态，所述脱位装置带动所述针头脱离所述笔体；所述按钮用于供人按压从而控制所述切换装置工作使得所述第一状态、第二状态及第三状态依次切换并循环。The purpose of the present invention can be achieved by the following technical solutions: a stab-proof insulin pen, characterized in that it includes a stab-proof mechanism, an insulin pen and a needle, the insulin pen includes a pen body and an injection push button, and the needle is connected to a needle. The bottom of the pen body is detachably connected, the top of the injection push key is provided with an extension rod, and the stab-proof mechanism includes a stab-proof casing and a stab-proof device arranged in the stab-proof casing. It includes a detachable upper casing and a lower casing, the puncture-proof casing is provided with a penetrating channel, and the puncturing channel is used for accommodating the insulin pen, and the puncture-proof device includes a button and a switching device, The top end of the button protrudes out of the stab-proof casing from the penetration channel, the bottom end of the button passes through the snap ring and abuts on the top of the rotating ring, and a movable channel is provided through the button, and the movable The channel communicates with the through channel, the extension rod protrudes upward from the movable channel, the extension rod and the button do not interfere with each other, and two side walls of the lower part of the through channel at the bottom of the rotating ring are formed. A dislocation device is arranged symmetrically on the side, and the dislocation device is used to drive the needle to separate from the pen body. In the first state, the needle protrudes from the bottom of the puncture-proof housing; in the second state, the needle retracts into the stab-proof housing; in the third state, the dislocation device drives the needle away from the pen body; the button is used for people to press to control the switching device to work so that the first state, the second The state and the third state are sequentially switched and cycled.

本发明的工作原理：第一状态，针头从防刺壳体底部伸出，由于延伸杆从按钮上的活动通道向上伸出，因此即使注射推键位于防刺壳体内部，医护人员也能够通过按压延伸杆为病人注射胰岛素；若出现情况病人需要等待一会儿，暂时无法立即注射时，医护人员可以按下按钮进入第二状态，针头位于防刺壳体内，不会扎到医护人员，十分安全；为病人注射完需要脱下针头时，医护人员再次按下按钮，针头便脱离笔体并从穿设通道内掉落到外面，医护人员可以把本发明拿到利器盒上方，这样针头便能够直接落入到利器盒内。The working principle of the present invention: in the first state, the needle protrudes from the bottom of the stab-proof casing. Since the extension rod extends upward from the active channel on the button, even if the injection push button is located inside the stab-proof casing, the medical staff can pass the Press the extension rod to inject insulin for the patient; if the patient needs to wait for a while and cannot inject immediately, the medical staff can press the button to enter the second state, the needle is located in the stab-proof housing, and the medical staff will not be stuck, which is very safe; When the needle needs to be taken off after injecting the patient, the medical staff presses the button again, and the needle is separated from the pen body and falls from the passage to the outside. The medical staff can take the invention above the sharps box, so that the needle can directly into the sharps box.

在上述的防刺伤胰岛素笔中，所述上壳体和下壳体通过螺纹连接。In the above stab-resistant insulin pen, the upper casing and the lower casing are connected by threads.

在上述的防刺伤胰岛素笔中，所述笔体上部固定设置有凸环，所述穿设通道下部侧壁沿周长设置有环形凸起，所述环形凸起上固定有第一复位弹簧，所述第一复位弹簧的顶部抵接在所述凸环的底部，所述切换装置包括卡接环及转动环，所述卡接环的外周壁固定于所述上壳体内的穿设通道侧壁上，所述卡接环的下部侧壁上开设有多个缺口组，所述缺口组包括第一缺口、第二缺口及第三缺口，所述第一缺口、第二缺口及第三缺口的长度依次减小，所述第一缺口、第二缺口及第三缺口的底部设置为弧形斜面，所述第一缺口、第二缺口及第三缺口之间的连接部分均为斜面，所述第一缺口、第二缺口及第三缺口于所述卡接环的内侧壁上均向上延伸有延伸槽，所述按钮底部沿周长设置有多个齿槽，所述按钮下部侧壁上设置有多个限位块，所述延伸槽用于供所述限位块卡入，每个所述限位块均位于两个所述齿槽之间，所述转动环的侧壁上均匀分布有多个卡爪，所述按钮的底部抵接在所述转动环的顶部使得所述卡爪卡入所述齿槽，当人按下按钮时，所述卡爪能够卡入到所述第一缺口或第二缺口或第三缺口内，所述转动环的底部用于抵接在所述凸环的顶部，所述穿设通道侧壁上还设置有抵接块，所述抵接块位于所述第二缺口的下方。In the above-mentioned anti-stab insulin pen, the upper part of the pen body is fixedly provided with a convex ring, the lower side wall of the penetration channel is provided with an annular protrusion along the circumference, and a first return spring is fixed on the annular protrusion , the top of the first return spring is in contact with the bottom of the convex ring, the switching device includes a snap ring and a rotating ring, and the outer peripheral wall of the snap ring is fixed to the passage in the upper casing On the side wall, a plurality of notch groups are opened on the lower side wall of the snap ring, the notch group includes a first notch, a second notch and a third notch, the first notch, the second notch and the third notch The lengths of the gaps decrease in turn, the bottoms of the first gap, the second gap and the third gap are set as arc-shaped inclined surfaces, and the connecting parts between the first gap, the second gap and the third gap are all inclined surfaces, The first notch, the second notch and the third notch all have extension grooves extending upward on the inner side wall of the snap ring, the bottom of the button is provided with a plurality of tooth grooves along the circumference, and the side wall of the lower part of the button is provided with a plurality of tooth grooves. A plurality of limit blocks are arranged on the upper part, and the extension grooves are used for the limit blocks to be snapped in. Each limit block is located between the two tooth slots, and the side wall of the rotating ring There are a plurality of claws evenly distributed, and the bottom of the button abuts on the top of the rotating ring, so that the claws are stuck into the tooth slot, and when a person presses the button, the claws can be stuck into all the holes. In the first notch or the second notch or the third notch, the bottom of the rotating ring is used for abutting on the top of the convex ring, and the side wall of the passing channel is also provided with an abutting block. The connecting block is located below the second notch.

在上述的防刺伤胰岛素笔中，所述笔体底部开设有用于对接针头的对接口，所述针头包括座体及安装于座体上的针管，所述底座远离针管的一端端部设置有用于卡入对接口的卡入部，所述座体远离针管的一端侧壁上设置有脱位环，所述脱位装置包括脱位块及第二复位弹簧，所述下壳体内的穿设通道下部两侧侧壁均开设有容纳槽，所述第二复位弹簧的一端固定于所述容纳槽的底部，所述第二复位弹簧的另一端与所述脱位块的一端固定连接，所述脱位块远离第二复位弹簧的一端设置为斜面，所述斜面自穿设通道的侧壁向中心逐渐向下倾斜。In the above-mentioned anti-stab insulin pen, the bottom of the pen body is provided with a docking port for docking the needle, the needle includes a base body and a needle tube mounted on the base body, and one end of the base away from the needle tube is provided with a useful A dislocation ring is arranged on the side wall of one end of the seat body away from the needle tube in the clip-in portion of the docking port, and the dislocation device includes a dislocation block and a second return spring. The side walls are provided with accommodating grooves, one end of the second return spring is fixed at the bottom of the accommodating groove, and the other end of the second return spring is fixedly connected with one end of the dislocation block, and the dislocation block is far away from the first end. One end of the two return springs is set as an inclined surface, and the inclined surface is gradually inclined downward from the side wall of the passage through the center toward the center.

与现有技术相比，本发明具有防刺伤的优点。Compared with the prior art, the present invention has the advantage of preventing stab wounds.

附图说明Description of drawings

图1是本发明的爆炸结构示意图。Figure 1 is a schematic diagram of the explosion structure of the present invention.

图2是本发明的部分结构示意图。FIG. 2 is a schematic diagram of a part of the structure of the present invention.

图3是本发明第一状态下的剖面结构示意图。FIG. 3 is a schematic cross-sectional structure diagram of the present invention in the first state.

图4是本发明第二状态下的剖面结构示意图。FIG. 4 is a schematic cross-sectional structure diagram of the present invention in a second state.

图5是本发明第三状态下的剖面结构示意图。FIG. 5 is a schematic cross-sectional structure diagram of the present invention in a third state.

图6是本发明中按钮和卡接环的结构示意图。FIG. 6 is a schematic structural diagram of a button and a snap ring in the present invention.

图中，1、防刺机构；2、胰岛素笔；3、针头；4、笔体；5、注射推键；6、延伸杆；7、对接口；8、凸环；9、座体；10、针管；11、脱位环；12、防刺壳体；13、防刺装置；14、穿设通道；15、环形凸起；16、第一复位弹簧；17、按钮；18、卡接环；19、转动环；20、缺口组；21、第一缺口；22、第二缺口； 23、第三缺口；24、延伸槽；25、齿槽；26、限位块；27、活动通道；28、卡爪；29、脱位装置；30、脱位块；31、第二复位弹簧；32、容纳槽；33、上壳体；34、下壳体；35、抵接块；36、卡入部；37、切换装置。In the figure, 1, anti-stab mechanism; 2, insulin pen; 3, needle; 4, pen body; 5, injection push button; 6, extension rod; 7, docking port; 8, convex ring; 9, base body; 10 , needle tube; 11, dislocation ring; 12, anti-stab housing; 13, anti-stab device; 14, piercing channel; 15, annular protrusion; 16, first return spring; 17, button; 18, snap ring; 19. Rotating ring; 20. Notch group; 21. The first notch; 22. The second notch; 23. The third notch; 24. The extension slot; , clamping jaw; 29, dislocation device; 30, dislocation block; 31, second return spring; 32, accommodating groove; 33, upper casing; 34, lower casing; 35, abutting block; 36, snap-in part; 37 , switching device.

具体实施方式Detailed ways

以下是本发明的具体实施例并结合附图，对本发明的技术方案作进一步的描述，但本发明并不限于这些实施例。The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

如图1-图6所示，本防刺伤胰岛素笔包括防刺机构1、胰岛素笔2及针头3，胰岛素笔2包括笔体4及注射推键5，针头3与笔体4的底部可拆卸连接，注射推键5顶部向上设置有延伸杆6，防刺机构1包括防刺壳体12及设置于防刺壳体12内的防刺装置13，防刺壳体12包括可拆卸设置的上壳体33和下壳体34，防刺壳体12贯穿设置有穿设通道14，穿设通道14用于容纳胰岛素笔2，防刺装置13包括按钮17及切换装置37，按钮17顶端自穿设通道14伸出防刺壳体 12，按钮17底端穿过卡接环18抵接在转动环19顶部，按钮17贯穿设置有活动通道27，活动通道27与穿设通道14连通，延伸杆6从活动通道27向上伸出，延伸杆6与按钮17互不干涉，转动环19的底部的穿设通道14下部侧壁两侧对称设置有脱位装置29，脱位装置29用于带动针头3脱离笔体4，第一状态，针头3从防刺壳体12底部伸出；第二状态，针头3缩回到防刺壳体12内；第三状态，脱位装置29带动针头3脱离笔体4；按钮17用于供人按压从而控制切换装置37工作使得第一状态、第二状态及第三状态依次切换并循环。As shown in Figures 1-6, the stab-proof insulin pen includes a stab-proof mechanism 1, aninsulin pen 2 and a needle 3, theinsulin pen 2 includes a pen body 4 and an injection push button 5, and the bottom of the needle 3 and the pen body 4 can be Removal and connection, the top of the injection push button 5 is provided with anextension rod 6 upward, and the stab-proof mechanism 1 includes a stab-proof casing 12 and a stab-proof device 13 arranged in the stab-proof casing 12. The stab-proof casing 12 includes a detachable Theupper casing 33 and thelower casing 34, the puncture-proof casing 12 is provided with apenetration channel 14, and thepenetration channel 14 is used for accommodating theinsulin pen 2. The puncture-proof device 13 includes abutton 17 and aswitching device 37. The top of thebutton 17 is automatically Thepenetration channel 14 extends out of the puncture-proof housing 12 , the bottom end of thebutton 17 passes through thesnap ring 18 and abuts on the top of the rotatingring 19 , and thebutton 17 is provided with amovable channel 27 penetrating through it. Themovable channel 27 communicates with thepenetration channel 14 and extends Therod 6 protrudes upward from themovable channel 27, theextension rod 6 and thebutton 17 do not interfere with each other, and the dislocation device 29 is symmetrically arranged on both sides of the lower side wall of thepassage 14 at the bottom of the rotatingring 19, and the dislocation device 29 is used to drive the needle 3 In the first state, the needle 3 protrudes from the bottom of the stab-proof housing 12; in the second state, the needle 3 is retracted into the stab-proof housing 12; in the third state, the dislocation device 29 drives the needle 3 out of the pen body 4; Thebutton 17 is used for people to press to control theswitching device 37 to work so that the first state, the second state and the third state are switched and cycled in turn.

进一步细说，上壳体33和下壳体34通过螺纹连接，这样可以将上壳体33和下壳体34拆开，然后将新的胰岛素笔2插入到下壳体34内，在对接上上壳体33完成更换，螺纹连接紧密而且方便拆卸。In further detail, theupper casing 33 and thelower casing 34 are connected by screws, so that theupper casing 33 and thelower casing 34 can be disassembled, and then anew insulin pen 2 can be inserted into thelower casing 34, The replacement of theupper casing 33 is completed, and the screw connection is tight and easy to disassemble.

进一步细说，笔体4上部固定设置有凸环8，穿设通道14下部侧壁沿周长设置有环形凸起15，环形凸起15上固定有第一复位弹簧16，第一复位弹簧16 的顶部抵接在凸环8的底部，切换装置37包括卡接环18及转动环19，卡接环 18的外周壁固定于上壳体33内的穿设通道14侧壁上，卡接环18的下部侧壁上开设有多个缺口组20，缺口组20包括第一缺口21、第二缺口22及第三缺口23，第一缺口21、第二缺口22及第三缺口23的长度依次减小，第一缺口21、第二缺口22及第三缺口23的底部设置为弧形斜面，第一缺口21、第二缺口22及第三缺口23之间的连接部分均为斜面，第一缺口21、第二缺口22及第三缺口23 于卡接环18的内侧壁上均向上延伸有延伸槽24，按钮17底部沿周长设置有多个齿槽25，按钮17下部侧壁上设置有多个限位块26，延伸槽24用于供限位块 26卡入，每个限位块26均位于两个齿槽25之间，转动环19的侧壁上均匀分布有多个卡爪28，按钮17的底部抵接在转动环19的顶部使得卡爪28卡入齿槽25，当人按下按钮17时，卡爪28能够卡入到第一缺口21或第二缺口22或第三缺口23内，转动环19的底部用于抵接在凸环8的顶部，穿设通道14侧壁上还设置有抵接块35，抵接块35位于第二缺口22的下方；第一状态下，卡爪28卡在第二缺口22内，此时针头3从防刺壳体12的底部伸出，病人需要注射时，医护人员可以按压延伸杆6推动注射推键5为病人注射，若病人注射时出现情况需要等待一端时间或者医护人员按下按钮17进入到第二状态，此时针头3缩在防刺壳体12内部，医护人员不用担心被刺伤，医护人员再次按下按钮17，卡爪28 卡在齿槽25内，由于限位块26位于延伸槽24内，因此卡爪28的尖端位于齿槽25向上倾斜的侧壁中部，按钮17下降带动转动环19下降，限位块26也向下移动到第二缺口22内，卡爪28离开第二缺口22，抵接块35与第二缺口22 开口之间的距离足够卡爪28下降到卡爪28顶部的尖端能够接触到第二缺口22 和第一缺口21之间的连接部分，卡爪28的底部会抵接在抵接块35顶部，这样能够防止医护人员按下按钮17用力过大带动针头3下降过多使得针头3上的凸环8下降到脱位块30底部，从而导致针头3脱离胰岛素笔2的情况发生，松开按钮17，转动环19 在第一复位弹簧16的作用下上升，卡爪28沿齿槽25向上倾斜的侧壁上升直到卡爪28的尖端抵在齿槽25的底部，卡爪28在这个过程中顺着第二缺口22和第一缺口21之间连接部分的斜面进入到第一缺口21内，第一缺口21长度最长，因此针头3会缩入到防刺壳体12内，医护人员再次按下按钮17，同样的，卡爪 28从第一缺口21转移到第三缺口23，由于斜面的设置，脱位环11在向下移动的时候会将脱位块30挤压缩回到容纳槽32内，此时针头3从防刺壳体12底部伸出且针头3上的脱位环11位于脱位块30的下方。In further detail, the upper part of the pen body 4 is fixedly provided with aconvex ring 8, the lower side wall of thepassage 14 is provided with anannular protrusion 15 along the circumference, and afirst return spring 16 is fixed on theannular protrusion 15, and thefirst return spring 16 The top abuts against the bottom of theconvex ring 8, theswitching device 37 includes asnap ring 18 and a rotatingring 19, the outer peripheral wall of thesnap ring 18 is fixed on the side wall of thepenetration channel 14 in theupper casing 33, and the snap ring A plurality of notch groups 20 are opened on the lower side wall of Reduced, the bottoms of thefirst notch 21, thesecond notch 22 and the third notch 23 are set as arc-shaped slopes, and the connecting parts between thefirst notch 21, thesecond notch 22 and the third notch 23 are all slopes. Thenotch 21 , thesecond notch 22 and the third notch 23 all haveextension grooves 24 extending upward on the inner side wall of thesnap ring 18 , the bottom of thebutton 17 is provided with a plurality oftooth grooves 25 along the circumference, and the bottom side wall of thebutton 17 is provided with There are a plurality oflimit blocks 26, theextension grooves 24 are used for thelimit blocks 26 to be snapped in, eachlimit block 26 is located between the twotooth slots 25, and a plurality of snaps are evenly distributed on the side wall of the rotatingring 19. Theclaw 28, the bottom of thebutton 17 abuts on the top of the rotatingring 19, so that theclaw 28 is caught in thetooth slot 25, when a person presses thebutton 17, theclaw 28 can be stuck into thefirst notch 21 or thesecond notch 22 or In the third gap 23, the bottom of the rotatingring 19 is used for abutting on the top of theconvex ring 8, and abuttingblock 35 is also provided on the side wall of thepassing channel 14, and theabutting block 35 is located below thesecond gap 22; In one state, theclaw 28 is stuck in thesecond gap 22. At this time, the needle 3 protrudes from the bottom of the stab-proof housing 12. When the patient needs to inject, the medical staff can press theextension rod 6 to push the injection push button 5 to inject the patient. , if the patient needs to wait for one end of time when injecting, or the medical staff presses thebutton 17 to enter the second state, the needle 3 is retracted inside the stab-proof housing 12, and the medical staff does not need to worry about being stabbed, and the medical staff presses the button again. Thebutton 17 and theclaws 28 are stuck in thetooth slot 25. Since thelimit block 26 is located in theextension slot 24, the tip of theclaws 28 is located in the middle of the upwardly inclined side wall of thetooth slot 25, and thebutton 17 descends to drive the rotatingring 19 to descend, Thelimiting block 26 also moves down into thesecond notch 22 , theclaw 28 leaves thesecond notch 22 , and the distance between theabutment block 35 and the opening of thesecond notch 22 is sufficient for theclaw 28 to descend to the tip of the top of theclaw 28 The connection part between thesecond notch 22 and thefirst notch 21 can be contacted, and the bottom of theclaw 28 will abut on the top of theabutment block 35, which can prevent the medical staff from pressing thebutton 17 with too much force to drive the needle 3 down. Theconvex ring 8 on the needle 3 is often lowered to the bottom of thedislocation block 30, thereby causing the needle 3 to be separated from theinsulin pen 2. Release thebutton 17, the rotatingring 19 rises under the action of thefirst return spring 16, and theclaw 28 The upwardly sloping side wall along thetooth slot 25 rises until the jaws The tip of 28 abuts against the bottom of thetooth slot 25. During this process, theclaw 28 enters thefirst notch 21 along the slope of the connecting part between thesecond notch 22 and thefirst notch 21. The length of thefirst notch 21 is the longest. , so the needle 3 is retracted into the stab-proof housing 12, and the medical staff presses thebutton 17 again. Similarly, theclaws 28 are transferred from thefirst notch 21 to the third notch 23. Due to the setting of the slope, thedislocation ring 11 is in the When moving downward, thedislocation block 30 will be squeezed back into theaccommodating groove 32 . At this time, the needle 3 protrudes from the bottom of the puncture-proof housing 12 and thedislocation ring 11 on the needle 3 is located below thedislocation block 30 .

进一步细说，笔体4底部开设有用于对接针头3的对接口7，针头3包括座体9及安装于座体9上的针管10，底座远离针管10的一端端部设置有用于卡入对接口7的卡入部36，座体9远离针管10的一端侧壁上设置有脱位环11，脱位装置29包括脱位块30及第二复位弹簧31，下壳体34内的穿设通道14下部两侧侧壁均开设有容纳槽32，第二复位弹簧31的一端固定于容纳槽32的底部，第二复位弹簧31的另一端与脱位块30的一端固定连接，脱位块30远离第二复位弹簧31的一端设置为斜面，斜面自穿设通道14的侧壁向中心逐渐向下倾斜；第二状态下再次按下按钮17，卡爪28从第三缺口23再次转移到第一二缺口内也就是转移到第二状态，卡爪28上升转移到第二缺口22内，脱位环11 被脱位块30抵住，由于针头3和笔体4是通过卡入部36卡入到对接口7内的，因此针头3能在上升力和脱位块30的作用下脱离笔体4，这样便达到了第三状态，不需要医护人员手动旋下针头3，十分安全。In further detail, the bottom of the pen body 4 is provided with adocking port 7 for docking the needle head 3, the needle head 3 includes a base body 9 and aneedle tube 10 installed on the base body 9, and one end of the base away from theneedle tube 10 is provided. The snap-in portion 36 of theinterface 7, the side wall of one end of the seat body 9 away from theneedle tube 10 is provided with adislocation ring 11, the dislocation device 29 includes adislocation block 30 and asecond return spring 31, and the lower part of thepassage 14 in thelower shell 34 is two. The side walls are provided withaccommodating grooves 32, one end of thesecond return spring 31 is fixed at the bottom of theaccommodating groove 32, the other end of thesecond return spring 31 is fixedly connected with one end of thedislocation block 30, and thedislocation block 30 is far away from the second return spring. One end of 31 is set as a slope, and the slope gradually slopes downward from the side wall of thepassage 14 to the center; in the second state, thebutton 17 is pressed again, and theclaws 28 are transferred from the third gap 23 to the first and second gaps. It is transferred to the second state, theclaws 28 are raised and transferred into thesecond notch 22, and thedislocation ring 11 is resisted by thedislocation block 30. Since the needle 3 and the pen body 4 are clipped into thedocking port 7 through the clipping part 36, Therefore, the needle 3 can be separated from the pen body 4 under the action of the lifting force and thedislocation block 30, thus reaching the third state, and it is very safe without the need for medical staff to manually unscrew the needle 3.

本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the described specific embodiments or substitute in similar manners, but will not deviate from the spirit of the present invention or go beyond the definitions of the appended claims range.

尽管本文较多地使用了大量术语，但并不排除使用其它术语的可能性。使用这些术语仅仅是为了更方便地描述和解释本发明的本质；把它们解释成任何一种附加的限制都是与本发明精神相违背的。Although a large number of terms are used in this paper, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; it is contrary to the spirit of the present invention to interpret them as any kind of additional limitation.

Claims (4)

Translated fromChinese

1.一种防刺伤胰岛素笔，其特征在于，包括防刺机构(1)、胰岛素笔(2)及针头(3)，所述胰岛素笔(2)包括笔体(4)及注射推键(5)，所述针头(3)与所述笔体(4)的底部可拆卸连接，所述注射推键(5)顶部向上设置有延伸杆(6)，所述防刺机构(1)包括防刺壳体(12)及设置于防刺壳体(12)内的防刺装置(13)，所述防刺壳体(12)包括可拆卸设置的上壳体(33)和下壳体(34)，所述防刺壳体(12)贯穿设置有穿设通道(14)，所述穿设通道(14)用于容纳所述胰岛素笔(2)，所述防刺装置(13)包括按钮(17)及切换装置(37)，所述按钮(17)顶端自穿设通道(14)伸出所述防刺壳体(12)，所述按钮(17)底端穿过所述卡接环(18)抵接在所述转动环(19)顶部，所述按钮(17)贯穿设置有活动通道(27)，所述活动通道(27)与所述穿设通道(14)连通，所述延伸杆(6)从所述活动通道(27)向上伸出，所述延伸杆(6)与所述按钮(17)互不干涉，所述转动环(19)的底部的所述穿设通道(14)下部侧壁两侧对称设置有脱位装置(29)，所述脱位装置(29)用于带动所述针头(3)脱离所述笔体(4)，第一状态，所述针头(3)从所述防刺壳体(12)底部伸出；第二状态，所述针头(3)缩回到所述防刺壳体(12)内；第三状态，所述脱位装置(29)带动所述针头(3)脱离所述笔体(4)；所述按钮(17)用于供人按压从而控制所述切换装置(37)工作使得所述第一状态、第二状态及第三状态依次切换并循环。1. A stab-proof insulin pen, characterized in that it comprises a stab-proof mechanism (1), an insulin pen (2) and a needle (3), the insulin pen (2) comprising a pen body (4) and an injection push button (5), the needle (3) is detachably connected to the bottom of the pen body (4), the top of the injection push button (5) is provided with an extension rod (6) upward, and the stab-proof mechanism (1) Comprising a stab-proof casing (12) and a stab-proof device (13) arranged in the stab-proof casing (12), the stab-proof casing (12) comprises a detachably arranged upper casing (33) and a lower casing A body (34), the puncture-proof casing (12) is provided with a penetration channel (14) therethrough, and the penetration channel (14) is used for accommodating the insulin pen (2), the puncture-proof device (13) ) comprises a button (17) and a switching device (37), the top of the button (17) protrudes from the penetration channel (14) out of the stab-proof housing (12), and the bottom end of the button (17) passes through the The snap ring (18) abuts on the top of the rotating ring (19), the button (17) is provided with a movable channel (27) through it, and the movable channel (27) is connected with the passing channel (14) The extension rod (6) protrudes upward from the movable channel (27), the extension rod (6) and the button (17) do not interfere with each other, and all the bottom of the rotating ring (19) A dislocation device (29) is symmetrically arranged on both sides of the lower side wall of the through passage (14), and the dislocation device (29) is used to drive the needle (3) away from the pen body (4). In the first state, The needle (3) protrudes from the bottom of the stab-proof casing (12); in the second state, the needle (3) is retracted into the stab-proof casing (12); in the third state, the needle (3) is retracted into the stab-proof casing (12); The dislocation device (29) drives the needle (3) to separate from the pen body (4); the button (17) is used for a person to press to control the switching device (37) to work so that the first state, the second state The second state and the third state are sequentially switched and circulated.2.根据权利要求1所述的一种防刺伤胰岛素笔，其特征在于，所述上壳体(33)和下壳体(34)通过螺纹连接。2 . The stab-resistant insulin pen according to claim 1 , wherein the upper casing ( 33 ) and the lower casing ( 34 ) are connected by threads. 3 .3.根据权利要求2所述的一种防刺伤胰岛素笔，其特征在于，所述笔体(4)上部固定设置有凸环(8)，所述穿设通道(14)下部侧壁沿周长设置有环形凸起(15)，所述环形凸起(15)上固定有第一复位弹簧(16)，所述第一复位弹簧(16)的顶部抵接在所述凸环(8)的底部，所述切换装置(37)包括卡接环(18)及转动环(19)，所述卡接环(18)的外周壁固定于所述上壳体(33)内的穿设通道(14)侧壁上，所述卡接环(18)的下部侧壁上开设有多个缺口组(20)，所述缺口组(20)包括第一缺口(21)、第二缺口(22)及第三缺口(23)，所述第一缺口(21)、第二缺口(22)及第三缺口(23)的长度依次减小，所述第一缺口(21)、第二缺口(22)及第三缺口(23)的底部设置为弧形斜面，所述第一缺口(21)、第二缺口(22)及第三缺口(23)之间的连接部分均为斜面，所述第一缺口(21)、第二缺口(22)及第三缺口(23)于所述卡接环(18)的内侧壁上均向上延伸有延伸槽(24)，所述按钮(17)底部沿周长设置有多个齿槽(25)，所述按钮(17)下部侧壁上设置有多个限位块(26)，所述延伸槽(24)用于供所述限位块(26)卡入，每个所述限位块(26)均位于两个所述齿槽(25)之间，所述转动环(19)的侧壁上均匀分布有多个卡爪(28)，所述按钮(17)的底部抵接在所述转动环(19)的顶部使得所述卡爪(28)卡入所述齿槽(25)，当人按下按钮(17)时，所述卡爪(28)能够卡入到所述第一缺口(21)或第二缺口(22)或第三缺口(23)内，所述转动环(19)的底部用于抵接在所述凸环(8)的顶部，所述穿设通道(14)侧壁上还设置有抵接块(35)，所述抵接块(35)位于所述第二缺口(22)的下方。3. A stab-resistant insulin pen according to claim 2, characterized in that, a convex ring (8) is fixedly arranged on the upper part of the pen body (4), and a lower side wall of the penetration channel (14) is along the edge of the upper part. An annular protrusion (15) is provided on the circumference, a first return spring (16) is fixed on the annular protrusion (15), and the top of the first return spring (16) abuts against the convex ring (8). ), the switching device (37) includes a snap ring (18) and a rotating ring (19), and the outer peripheral wall of the snap ring (18) is fixed to a hole in the upper casing (33). On the side wall of the channel (14), a plurality of notch groups (20) are opened on the lower side wall of the snap ring (18), and the notch group (20) includes a first notch (21), a second notch ( 22) and the third gap (23), the lengths of the first gap (21), the second gap (22) and the third gap (23) decrease in turn, the first gap (21), the second gap The bottoms of (22) and the third notch (23) are set as arc-shaped inclined surfaces, and the connecting parts between the first notch (21), the second notch (22) and the third notch (23) are all inclined surfaces, so The first notch (21), the second notch (22) and the third notch (23) all have extension grooves (24) extending upward on the inner side wall of the snap ring (18). The button (17) The bottom is provided with a plurality of tooth slots (25) along the circumference, a plurality of limit blocks (26) are arranged on the lower side wall of the button (17), and the extension grooves (24) are used for the limit blocks (26) snap into place, each of the limiting blocks (26) is located between the two tooth slots (25), and a plurality of claws (28) are evenly distributed on the side wall of the rotating ring (19). ), the bottom of the button (17) abuts on the top of the rotating ring (19) so that the claw (28) is locked into the tooth slot (25), when a person presses the button (17), The claws (28) can be snapped into the first notch (21) or the second notch (22) or the third notch (23), and the bottom of the rotating ring (19) is used for abutting on the On the top of the convex ring (8), an abutting block (35) is also provided on the side wall of the passing channel (14), and the abutting block (35) is located below the second gap (22).4.根据权利要求3所述的一种防刺伤胰岛素笔，其特征在于，所述笔体(4)底部开设有用于对接针头(3)的对接口(7)，所述针头(3)包括座体(9)及安装于座体(9)上的针管(10)，所述底座远离针管(10)的一端端部设置有用于卡入对接口(7)的卡入部(36)，所述座体(9)远离针管(10)的一端侧壁上设置有脱位环(11)，所述脱位装置(29)包括脱位块(30)及第二复位弹簧(31)，所述下壳体(34)内的穿设通道(14)下部两侧侧壁均开设有容纳槽(32)，所述第二复位弹簧(31)的一端固定于所述容纳槽(32)的底部，所述第二复位弹簧(31)的另一端与所述脱位块(30)的一端固定连接，所述脱位块(30)远离第二复位弹簧(31)的一端设置为斜面，所述斜面自穿设通道(14)的侧壁向中心逐渐向下倾斜。4. A stab-resistant insulin pen according to claim 3, characterized in that, the bottom of the pen body (4) is provided with a docking port (7) for docking the needle (3), the needle (3) It comprises a seat body (9) and a needle tube (10) mounted on the seat body (9), one end of the base away from the needle tube (10) is provided with a snap-in portion (36) for snapping into the docking port (7), A dislocation ring (11) is provided on the side wall of one end of the seat body (9) away from the needle tube (10), and the dislocation device (29) includes a dislocation block (30) and a second return spring (31). A receiving groove (32) is formed on both side walls of the lower part of the passage (14) in the casing (34), and one end of the second return spring (31) is fixed to the bottom of the receiving groove (32), The other end of the second return spring (31) is fixedly connected to one end of the dislocation block (30), and the end of the dislocation block (30) away from the second return spring (31) is set as an inclined surface, and the inclined surface is The side wall of the passage (14) is gradually inclined downward toward the center.

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