技术领域technical field
本发明涉及医疗辅助设备领域，特别涉及一种降低穿刺痛感的采血笔。The invention relates to the field of medical auxiliary equipment, in particular to a blood sampling pen which reduces puncture pain.
背景技术Background technique
目前，医疗机构在常规采血时一般直接用采血针采血，这种方法虽能一人一针，不被交叉感染，但患者直接看到针头，产生恐惧心理（特别是儿童）。另一种采血时，取采血针通过采血笔配合使用，将采血针装于采血笔内，发射针刺后取下采血针，装上另一支采血针再次使用。采血笔是一种与一次性采血针配套使用的采血装置，其中采血笔可重复使用，而采血针为了避免交叉传染仅为一次性使用。采血笔的发展已有数十年历史，其中对采血笔的改进也在不断发展。At present, medical institutions generally use blood collection needles directly for blood collection during routine blood collection. Although this method can be used for one needle per person, cross-infection is avoided, but patients (especially children) feel fear when they see the needle directly. In another type of blood collection, the blood collection needle is used in conjunction with the blood collection pen, the blood collection needle is installed in the blood collection pen, the blood collection needle is taken off after the acupuncture is fired, and another blood collection needle is loaded on to be used again. The blood collection pen is a blood collection device used in conjunction with a disposable blood collection needle, wherein the blood collection pen is reusable, and the blood collection needle is only for one-time use in order to avoid cross-infection. The development of blood collection pens has a history of decades, and the improvement of blood collection pens is also constantly developing.
采血笔主要由笔帽、笔杆、发射机构等组成，笔帽装配于笔杆，笔杆内设置有采血针发射机构。通常情况下，这类采血笔的使用操作步骤如下：第一步拆卸笔帽；第二步将一次性采血针插装到笔杆前端的针座上；第三步再将笔帽装回到笔杆上；第四步将采血针上膛；第五步对准采血部位按压按钮发射采血针穿刺采血。The blood collection pen is mainly composed of a pen cap, a pen holder, and a launch mechanism. The pen cap is assembled on the pen holder, and a blood collection needle launch mechanism is arranged in the pen holder. Normally, the operation steps of this type of blood collection pen are as follows: the first step is to remove the pen cap; the second step is to insert the disposable blood collection needle into the needle seat at the front end of the pen holder; the third step is to put the pen cap back on the pen holder; The fourth step is to load the blood collection needle; the fifth step is to align the blood collection site and press the button to launch the blood collection needle to puncture blood collection.
目前的采血笔结构，在穿刺采血的过程中，往往会出现采血针发射路径偏移导致穿刺时采血针插入人体皮肤时发生偏移，增加患者疼痛感，亟待发明一种能够减少患者痛感的采血笔，尽量减小患者在穿刺时的痛苦。With the current structure of the blood collection pen, in the process of puncture and blood collection, the launch path of the blood collection needle often deviates, resulting in deviation when the blood collection needle is inserted into the human skin during puncture, which increases the pain of the patient. It is urgent to invent a blood collection device that can reduce the pain of the patient. Pen, to minimize the patient's pain during puncture.
发明内容Contents of the invention
发明目的：针对现有技术中存在的问题，本发明提供一种降低穿刺痛感的采血笔，采血时避免患者看到针头，防止引起恐惧心理，能有效避免交叉感染，使用简便，结构简单，安全可靠。Purpose of the invention: Aiming at the problems existing in the prior art, the present invention provides a blood collection pen that reduces puncture pain, prevents the patient from seeing the needle during blood collection, prevents fear, can effectively avoid cross-infection, is easy to use, simple in structure, and safe reliable.
技术方案：本发明提供了一种降低穿刺痛感的采血笔，包括同轴装配的一段笔头、二段笔头、笔芯、笔筒、笔壳、一段笔尾和二段笔尾，还包括弹性发射按片；所述一段笔头与所述二段笔头的顶部连接，所述二段笔头的底部与所述笔筒的顶部螺纹连接，所述笔筒套设在所述笔芯外部，所述一段笔尾套设在所述笔筒外壁下部，且所述笔芯的上部位于所述笔筒内，下部位于所述一段笔尾内；所述二段笔尾与所述一段笔尾的外壁套设卡扣；在所述笔芯的外壁套设有位于所述笔筒内的第一弹簧和位于所述一段笔尾内的第二弹簧，所述第一弹簧位于所述笔芯的限位凸肩与所述笔筒的底壁之间，所述第二弹簧位于所述一段笔尾的内壁凸肩与所述笔芯底部的凸块之间；所述弹性发射按片的底部固定在所述笔壳内，顶部暴露在所述笔壳外，用于将位于所述笔芯顶部的采血针槽内的采血针发射到所述一段笔头的顶部开口端外部；在所述笔芯上、所述采血针槽与所述限位凸肩之间还设置有凸起薄片，在所述笔筒内壁与所述凸起薄片对应的位置处开设有与其配合的限位导槽，所述凸起薄片与所述限位导槽滑动连接。Technical solution: The present invention provides a blood collection pen with reduced puncture pain, which includes a coaxially assembled pen tip, a pen tip, a refill, a pen container, a pen case, a pen tail and a pen tail, and an elastic launch button piece; the first section of the nib is connected to the top of the second section of the nib, the bottom of the second section of the nib is threadedly connected to the top of the pen holder, the pen holder is set outside the pen core, and the pen tail cover of the first section Set on the lower part of the outer wall of the pen container, and the upper part of the pen core is located in the pen container, and the lower part is located in the first section of the pen tail; the outer wall of the second section of the pen tail and the first section of the pen tail is sleeved with a buckle; The outer wall of the pen core is provided with a first spring located in the pen holder and a second spring located in the pen tail, and the first spring is located between the limit shoulder of the pen core and the pen holder. Between the bottom wall of the pen, the second spring is located between the shoulder of the inner wall of the pen tail and the protrusion at the bottom of the pen core; the bottom of the elastic launch press piece is fixed in the pen case, and the top Exposed to the outside of the pen shell, it is used to launch the blood collection needle located in the blood collection needle slot on the top of the pen core to the outside of the top opening end of the section of the pen head; on the pen core, the blood collection needle slot and the A protruding sheet is also provided between the limiting shoulders, and a position-limiting guide groove cooperating with the position of the inner wall of the pen holder is provided at a position corresponding to the protruding sheet, and the protruding sheet and the limiting Guide groove sliding connection.
进一步地，所述的降低穿刺痛感的采血笔还包括三段笔头，所述第三段笔头的内壁底部具有螺牙，所述一段笔头的外壁具有螺纹轨道，所述三段笔头套设在所述一段笔头外壁且通过所述螺牙与所述螺纹轨道螺纹连接。为了能够控制穿刺深度，设置了三段笔头，三段笔头与二段笔头之间通过螺纹轨道连接旋进的时候，旋进的距离越大，则采血针的穿刺深度越深，旋进的距离越小，则穿刺深度越浅；Further, the blood collection pen for reducing puncture pain also includes three sections of nibs, the bottom of the inner wall of the third section of nibs has screw teeth, the outer wall of the section of nibs has a threaded track, and the three sections of nibs are sleeved on the The outer wall of a section of the nib is threadedly connected with the threaded track through the thread. In order to be able to control the puncture depth, a three-section nib is set. When the third-section nib and the second-section nib are connected and screwed in through a threaded track, the greater the screw-in distance, the deeper the puncture depth of the blood collection needle, and the screw-in distance The smaller the value, the shallower the puncture depth;
进一步地，所述三段笔头的内壁顶部具有等间距圆周分布的若干纵向凸筋，所述一段笔头的外壁两侧对称设置有能够卡在两两所述纵向凸筋之间的限位凸点；当所述三段笔头绕所述一段笔头外壁的螺纹轨道旋进时，所述限位凸点能够越过各所述纵向凸筋。通过三段笔头内壁等间距圆周分布的纵向凸筋与一段笔头外壁的限位凸点之间的配合，在旋进的过程中，限位凸点每越过一个纵向凸筋，旋进的距离就会增加一个单位，纵向凸筋和限位凸点的配合能够使得每次旋进的距离相等，能够有效量化控制穿刺深度。Further, the top of the inner wall of the three-section nib has a number of longitudinal ribs distributed on the circumference at equal intervals, and the outer wall of the first section of the nib is symmetrically provided with limiting protrusions that can be stuck between two longitudinal ribs. ; When the three sections of nibs are screwed in around the threaded track of the outer wall of the section of nibs, the limiting protrusions can pass over each of the longitudinal ribs. Through the cooperation between the longitudinal convex ribs distributed at equal intervals on the inner wall of the three sections of the nib and the limiting convex point on the outer wall of the pen tip, in the process of screwing in, every time the limiting convex point crosses a longitudinal rib, the distance of screwing in is equal to One unit will be added, and the cooperation of the longitudinal rib and the limit protrusion can make the distance of each screw-in equal, and can effectively quantitatively control the puncture depth.
进一步地，在所述三段笔头的底部外壁一周还圆周等间距设置与各所述纵向凸筋对应的穿刺深度刻度线。限位凸点每越过一个纵向凸筋，三段笔头就会向一段笔头旋进更近一步，则采血针发射时的穿刺深度则会更深一点，与每个纵向凸筋对应的穿刺深度刻度线则会直观地显示出穿刺的深度，非常方便医护人员使用。Further, puncture depth scale lines corresponding to each of the longitudinal ribs are provided at equal intervals around the outer wall of the bottom of the three-section nib. Every time the limit bump passes over a longitudinal rib, the three sections of the nib will be screwed one step closer to the first section of the nib, and the puncture depth of the blood collection needle will be deeper when it is fired. The puncture depth scale line corresponding to each longitudinal rib It will intuitively display the puncture depth, which is very convenient for medical staff to use.
优选地，所述三段笔头的底部位于所述一段笔头与所述二段笔头之间，所述二段笔头的上沿开设用于显示所述穿刺深度刻度线的读数窗口。读数窗口的设计使得医护人员更加便于读出当时穿刺的深度。Preferably, the bottom of the three-segment pen head is located between the first-segment pen head and the second-segment pen head, and the upper edge of the second-segment pen head has a reading window for displaying the scale line of the puncture depth. The design of the reading window makes it easier for medical staff to read the depth of the puncture at that time.
进一步地，在所述三段笔头内壁上、各所述纵向凸筋与所述螺牙之间还设置有纵向阻止凸筋，在所述一段笔头的外壁上还设置有阻止凸点，当所述三段笔头绕所述一段笔头外壁的螺纹轨道旋进一周后，所述阻止凸点恰好与所述纵向阻止凸筋有效接触。纵向阻止凸筋和阻止凸点的设计使得三段笔头最多只能沿螺纹轨道绕一段笔头旋转360°，以控制穿刺深度的上限。Further, on the inner wall of the three sections of the nib, between each of the longitudinal ribs and the screw teeth, there is also a longitudinal blocking rib, and on the outer wall of the section of the nib, there is also a blocking convex point. After the three sections of nibs are screwed into the thread track of the outer wall of the first section of nibs for a circle, the preventing protrusions just come into effective contact with the longitudinal preventing ribs. The design of the longitudinal blocking rib and the blocking point makes the three sections of the nib can only rotate 360° around one section of the nib along the thread track at most, so as to control the upper limit of the puncture depth.
进一步地，所述的降低穿刺痛感的采血笔还包括卸针推杆，所述卸针推杆与所述笔芯的侧壁平行设置且位于所述采血针槽底壁的通孔正下方，且其顶端卡在所述通孔内，底端一侧固定连接有卸针手柄，所述卸针手柄位于所述二段笔头与所述笔壳的外壁之间。采血一次完成后，采血针会回缩到采血针槽内，采血针槽的深度一般较采血针的长度高，不方便人工将采血针从其内取出更换，所以本申请中设置卸针推杆；在采血完成后，将一段笔头和二段笔头拆卸掉，既可以通过卸针手柄将卸针推杆上推，卸针推杆上移时穿过采血针槽底部的通孔后将采血针槽内的采血针上推，当采血针被卸针推杆推到露出采血针槽的上沿后就能够很方便地取出使用后的采血针，然后再通过卸针手柄将卸针推杆下移至采血针槽下方，然后再向采血针槽内放入新的采血针，接着将一段笔头和二段笔头重新与笔筒螺纹连接，等待下一次采血。Further, the blood collection pen for reducing puncture pain also includes a needle unloading push rod, which is arranged parallel to the side wall of the pen core and located directly below the through hole on the bottom wall of the blood collection needle slot, And its top is stuck in the through hole, and one side of the bottom end is fixedly connected with a needle unloading handle, and the needle unloading handle is located between the second section of the nib and the outer wall of the pen housing. After one blood collection is completed, the blood collection needle will be retracted into the blood collection needle groove. The depth of the blood collection needle groove is generally higher than the length of the blood collection needle, and it is inconvenient to manually remove the blood collection needle from it for replacement. ; After the blood collection is completed, disassemble the first section and the second section of the nib, and push up the needle unloading push rod through the needle unloading handle. The blood collection needle in the groove is pushed up, and when the blood collection needle is pushed to the upper edge of the blood collection needle groove by the needle unloading push rod, the used blood collection needle can be easily taken out, and then the needle unloading push rod is pushed down through the needle unloading handle. Move to the bottom of the blood collection needle slot, and then put a new blood collection needle into the blood collection needle slot, and then reconnect the pen tip and the second pen tip to the pen container, and wait for the next blood collection.
进一步地，在所述第一弹簧的下方、所述笔芯的外壁还套设有第二弹簧，所述第二弹簧位于所述一段笔尾的内壁凸肩与所述凸块之间。在通过二段笔尾将一段笔尾连通笔芯后拉的同时，第二弹簧会被压缩，在采血针被发射到一段笔头的开口端之后，第二弹簧会发生回弹，以将笔芯连通采血针快速重新缩回到一段笔头内，这样采血针的针尖就不会露出一段笔头，防止被患者看见采血针，减少恐惧感。Further, a second spring is sheathed on the outer wall of the pen core under the first spring, and the second spring is located between the shoulder of the inner wall of the pen tail and the protrusion. When the end of a pen is connected to the refill through the second end of the pen, the second spring will be compressed, and after the lancet is fired to the open end of the pen head, the second spring will rebound to push the refill The connected blood collection needle quickly retracts into a section of the pen head, so that the needle tip of the blood collection needle will not expose a section of the pen head, preventing the patient from seeing the blood collection needle and reducing fear.
进一步地，所述弹性发射按片的内壁具有凸点，所述笔芯上、所述采血针槽与所述限位凸肩之间还具有弹性发射凸块；在所述采血针被发射前，所述弹性发射凸块卡在所述笔筒的内壁凸块底部，所述凸点正对所述弹性发射凸块；在所述笔芯被发射后，所述弹性发射凸块脱离所述内壁凸块的底部并移动到其上方，所述凸点位于所述弹性发射凸块下方。在需要发射采血针时，按压弹性发射按片，凸点则会按压弹性发射凸块，使弹性发射凸块脱离笔筒的内壁凸块底部，然后笔芯再在第一弹簧的回弹力作用下迅速上移，同时带动采血针槽内的采血针迅速发射出一段笔头的端部开口，实现对采血针的发射。Further, the inner wall of the elastic launch press piece has a convex point, and there is also an elastic launch bump on the refill, between the blood collection needle slot and the limiting shoulder; before the blood collection needle is fired , the elastic launching projection is stuck on the bottom of the inner wall projection of the pen container, and the convex point is facing the elastic launching projection; after the pen core is fired, the elastic launching projection breaks away from the inner wall the bottom of the bump and move above it, and the bump is located below the elastic launching bump. When the blood collection needle needs to be launched, press the elastic launch button, and the bump will press the elastic launch bump, so that the elastic launch bump is detached from the bottom of the inner wall bump of the pen holder, and then the pen core is quickly released under the elastic force of the first spring. Move up, and simultaneously drive the blood collection needle in the blood collection needle slot to quickly launch a section of the end opening of the nib, so as to realize the launching of the blood collection needle.
优选地，所述凸起薄片在所述笔芯上对称设置，所述限位导槽在所述笔筒内壁对称设置。凸起薄片对称设置能够使得采血针的发射路线更加平稳，保证采血针在发射过程中不会晃动。Preferably, the protruding sheet is symmetrically arranged on the pen core, and the limiting guide groove is symmetrically arranged on the inner wall of the pen holder. The symmetrical arrangement of the raised flakes can make the launching route of the blood collection needle more stable and ensure that the blood collection needle will not shake during the launching process.
工作原理及有益效果：在使用本采血笔时，先将一段笔头和二段笔头整体从笔筒上拧掉，暴露出采血针槽，此时采血针槽伸出到笔筒的上端开口上方，将采血针放入到采血针槽内后，将一段笔头和二段笔头整体与笔筒螺纹连接，采血针安装完毕；然后拉动二段笔尾，二段笔尾带动一段笔尾后移，一段笔尾的内壁凸肩压迫第二弹簧压缩，第二弹簧通过凸块迫使笔芯后移，限位凸肩随笔芯后移，压缩第一弹簧，待笔芯的弹性发射凸块卡在笔筒的内壁凸块底部时，停止拉动，此时，采血针槽随笔芯下移到笔筒的上端开口下方，然后按压弹性发射按片，其凸点挤压弹性发射凸块，使弹性发射凸块脱离笔筒的内壁凸块底部，然后第一弹簧回弹限位凸肩，带动笔芯迅速上移，同时带动采血针槽内的采血针迅速发射出一段笔头的端部开口，实现对采血针的发射，完成穿刺，穿刺完成后，第二弹簧的回弹力会对笔芯的凸块具有回弹力，使得采血针槽内的采血针向一段笔头内回缩，即穿刺完毕后，采血针的针头不会暴露在一段笔头的端部开口外壁，而是缩回到其内部。在采血针被发射的过程中，笔芯的凸起薄片能够以限位导槽为导轨迅速直线移动，使笔芯的移动更加的稳定，不会产生晃动，使笔芯前端采血针槽内的采血针能够直线穿刺入人体，这样能很大程度上减轻穿刺的痛感。采血针一次发射完毕后则再次以上述相同的方式更换新的采血针，以待下一次穿刺。Working principle and beneficial effects: When using the blood collection pen, the first section of the pen and the second section of the pen are unscrewed from the pen holder to expose the blood collection needle groove. At this time, the blood collection needle groove extends above the upper opening of the pen holder, and the blood collection needle After the needle is put into the blood collection needle slot, thread the first section of the nib and the second section of the nib to the pen holder as a whole, and the blood collection needle is installed; The shoulder on the inner wall presses the second spring to compress, and the second spring forces the pen core to move backward through the protrusion, and the limiting shoulder moves backward with the pen core, compressing the first spring, until the elastic launching protrusion of the pen core is stuck on the inner wall protrusion of the pen holder When it is at the bottom, stop pulling. At this time, the blood collection needle groove moves down with the pen core to the lower opening of the upper end of the pen holder, and then press the elastic launch button, and its convex point squeezes the elastic launch bump, so that the elastic launch bump is detached from the inner wall of the pen holder. The bottom of the block, and then the first spring rebounds the limit shoulder, driving the pen core to move up quickly, and at the same time driving the blood collection needle in the blood collection needle groove to quickly launch a section of the end opening of the pen tip, so as to realize the firing of the blood collection needle and complete the puncture. After the puncture is completed, the resilience of the second spring will have a resilience to the protrusion of the pen core, so that the blood collection needle in the blood collection needle groove retracts into a section of the pen head, that is, after the puncture is completed, the needle of the blood collection needle will not be exposed to a section of the pen. The tip of the nib is open to the outer wall, but retracts into its interior. When the blood collection needle is fired, the protruding sheet of the pen core can move quickly and linearly with the limit guide groove as the guide rail, so that the movement of the pen core is more stable without shaking, so that the front end of the pen core in the blood collection needle slot The blood collection needle can penetrate the human body in a straight line, which can greatly reduce the pain of puncture. After the lancet is fired once, a new lancet is replaced in the same manner as above for the next puncture.
可见，本发明中的采血笔在穿刺过程中，由于在发射采血针的过冲中，笔芯上的凸起薄片能够以笔筒内壁的限位导槽为直线导轨迅速直线移动，避免笔芯在移动时发生晃动和偏移，进而避免笔芯顶部采血针槽内采血针的发射路径发生晃动和偏移，使得采血针能够真正的进行直线穿刺，减少患者穿刺时的痛感。It can be seen that during the puncture process of the blood collection pen in the present invention, due to the overshoot of the launched blood collection needle, the protruding sheet on the pen core can move quickly and linearly with the limit guide groove on the inner wall of the pen holder as a linear guide, so as to avoid the pen core in the overshoot. Shaking and offset occur when moving, thereby avoiding shaking and offset of the launch path of the blood collection needle in the blood collection needle groove on the top of the refill, so that the blood collection needle can truly puncture in a straight line and reduce the pain of the patient when puncturing.
附图说明Description of drawings
图1为降低穿刺痛感的采血笔的整体立体结构示意图；Fig. 1 is a schematic diagram of the overall three-dimensional structure of a blood collection pen that reduces puncture pain;
图2为图1的正视图；Fig. 2 is the front view of Fig. 1;
图3为图2的左视图；Fig. 3 is the left view of Fig. 2;
图4为降低穿刺痛感的采血笔的整体爆炸图；Figure 4 is an overall exploded view of the blood collection pen that reduces puncture pain;
图5为图2的剖视图（发射前）；Figure 5 is a cross-sectional view of Figure 2 (before launching);
图6为图2的剖视图（发射后）；Figure 6 is a cross-sectional view of Figure 2 (after launch);
图7为图3的剖视图；Fig. 7 is the sectional view of Fig. 3;
图8为笔芯的立体结构示意图；Fig. 8 is a schematic diagram of the three-dimensional structure of the pen core;
图9为图8的正视图；Fig. 9 is the front view of Fig. 8;
图10为图9的左视图；Fig. 10 is the left view of Fig. 9;
图11为笔筒的俯视图；Figure 11 is a top view of the pen holder;
图12为三段笔头的正视图；Fig. 12 is the front view of the three-section nib;
图13为三段笔头的仰视图；Fig. 13 is the bottom view of three section nibs;
图14为三段笔头的立体图。Fig. 14 is a perspective view of a three-segment nib.
具体实施方式Detailed ways
下面结合附图对本发明进行详细的介绍。The present invention will be described in detail below in conjunction with the accompanying drawings.
实施方式1：Implementation mode 1:
本实施方式提供了一种降低穿刺痛感的采血笔，如图1至11，该采血笔主要由弹性发射按片4以及同轴装配的一段笔头10、二段笔头2、笔芯7、笔筒8、笔壳3、一段笔尾9和二段笔尾6组成，一段笔头10与二段笔头2的顶部连接，二段笔头2的底部与笔筒8的顶部螺纹连接，笔筒8套设在笔芯7外部，一段笔尾9套设在笔筒8外壁下部，且笔芯7的上部位于笔筒8内，下部位于一段笔尾9内；二段笔尾6与一段笔尾9的外壁套设卡扣；在笔芯7的外壁套设有位于笔筒8内的第一弹簧11，第一弹簧11位于笔芯7的限位凸肩702与笔筒8的底壁之间；在第一弹簧11的下方、笔芯7的外壁还套设有第二弹簧12，第二弹簧12位于一段笔尾9的内壁凸肩901与笔芯7底部的凸块701之间。This embodiment provides a blood collection pen that reduces puncture pain, as shown in Figures 1 to 11, the blood collection pen is mainly composed of an elastic emission press piece 4 and a coaxially assembled one-section pen tip 10, two-section pen tip 2, pen core 7, and pen holder 8 , pen case 3, one section of pen tail 9 and two sections of pen tail 6, one section of nib 10 is connected to the top of second section of nib 2, the bottom of second section of nib 2 is threadedly connected to the top of pen holder 8, and pen holder 8 is set on the pen core 7 outside, a section of pen tail 9 is set on the lower part of the outer wall of the pen holder 8, and the upper part of the pen core 7 is located in the pen holder 8, and the lower part is located in the first section of the pen tail 9; The outer wall of the pen core 7 is provided with the first spring 11 located in the pen container 8, the first spring 11 is located between the limit shoulder 702 of the pen core 7 and the bottom wall of the pen container 8; under the first spring 11 1. The outer wall of the refill 7 is also sheathed with a second spring 12 , and the second spring 12 is located between the shoulder 901 of the inner wall of a section of the pen tail 9 and the bump 701 at the bottom of the refill 7 .
弹性发射按片4的底部固定在笔壳3内，顶部暴露在笔壳3外，用于将位于笔芯7顶部的采血针槽703内的采血针发射到一段笔头10的顶部开口端外部；弹性发射按片4的内壁具有凸点401，笔芯7上、采血针槽703与限位凸肩702之间还具有弹性发射凸块706；在采血针被发射前，弹性发射凸块706卡在笔筒8的内壁凸块802底部，凸点401正对弹性发射凸块706；在笔芯7被发射后，弹性发射凸块706脱离内壁凸块802的底部并移动到其上方，凸点401位于弹性发射凸块706下方。在笔芯7上、采血针槽703与限位凸肩702之间还设置有凸起薄片704，在笔筒8内壁与凸起薄片704对应的位置处开设有与其配合的限位导槽801，凸起薄片704与限位导槽801滑动连接。The bottom of the elastic launching sheet 4 is fixed in the pen case 3, and the top is exposed outside the pen case 3, and is used for launching the blood collection needle in the blood collection needle groove 703 on the top of the pen core 7 to the outside of the top opening end of a section of the pen head 10; The inner wall of the elastic launch press piece 4 has a convex point 401, and there is also an elastic launch projection 706 on the refill 7, between the blood collection needle groove 703 and the limiting shoulder 702; before the blood collection needle is fired, the elastic launch projection 706 is stuck At the bottom of the inner wall protrusion 802 of the pen holder 8, the bump 401 faces the elastic launching protrusion 706; It is located below the elastic launching bump 706 . On the pen core 7, between the blood collection needle groove 703 and the limiting shoulder 702, a protruding sheet 704 is also provided, and at the position corresponding to the protruding sheet 704 on the inner wall of the pen container 8, there is a limiting guide groove 801 cooperating with it. The protruding sheet 704 is slidably connected with the limiting guide groove 801 .
本降低穿刺痛感的采血笔的工作原理如下：在使用本采血笔时，先将一段笔头10和二段笔头2整体从笔筒8上拧掉，暴露出采血针槽703，此时采血针槽703伸出到笔筒8的上端开口上方，将采血针放入到采血针槽703内后，将一段笔头10和二段笔头2组装后，整体与笔筒8螺纹连接，采血针安装完毕；然后拉动二段笔尾6，二段笔尾6带动一段笔尾9后移，一段笔尾9的内壁凸肩901压迫第二弹簧12压缩，第二弹簧12通过凸块701迫使笔芯7后移，限位凸肩702随笔芯7后移，压缩第一弹簧11，待笔芯7的弹性发射凸块706卡在笔筒8的内壁凸块802底部时，停止拉动，此时，采血针槽703随笔芯7下移到笔筒8的上端开口下方，第一弹簧11和第二弹簧12被压缩，然后按压弹性发射按片4，其凸点401挤压弹性发射凸块706，使弹性发射凸块706脱离笔筒8的内壁凸块802底部，然后第一弹簧11回弹限位凸肩702，带动笔芯7迅速上移，同时带动采血针槽703内的采血针迅速发射出一段笔头10的端部开口，实现对采血针的发射，完成穿刺，穿刺完成后，第二弹簧12的回弹力会对笔芯7的凸块701具有回弹力，使得采血针槽703内的采血针向一段笔头10内回缩，即穿刺完毕后，采血针的针头不会暴露在一段笔头10的端部开口外壁，而是缩回到其内部。在采血针被发射的过程中，笔芯7的凸起薄片704能够以限位导槽801为导轨迅速直线移动，使笔芯7的移动更加的稳定，不会产生晃动，使笔芯7前端采血针槽703内的采血针能够直线穿刺入人体，这样能很大程度上减轻穿刺的痛感。采血针一次发射完毕后则再次以上述相同的方式更换新的采血针，以待下一次穿刺。The working principle of the blood collection pen for reducing puncture pain is as follows: when using the blood collection pen, the first section of the nib 10 and the second section of the nib 2 are unscrewed from the pen holder 8 to expose the blood collection needle groove 703. At this time, the blood collection needle groove 703 Stretch out above the upper opening of the pen holder 8, put the blood collection needle into the blood collection needle groove 703, assemble one section of the nib 10 and the second section of the nib 2, and thread the whole with the pen holder 8, and the blood collection needle is installed; then pull the two The first section of pen tail 6 and the second section of pen tail 6 drive the first section of pen tail 9 to move backward. The inner wall shoulder 901 of the first section of pen tail 9 presses the second spring 12 to compress, and the second spring 12 forces the refill 7 to move backward through the protrusion 701, limiting The position shoulder 702 moves back with the refill 7, compresses the first spring 11, and stops pulling when the elastic launching projection 706 of the refill 7 is stuck on the bottom of the inner wall projection 802 of the pen holder 8. At this time, the blood collection needle groove 703 follows the refill. 7 moves down to below the opening of the upper end of the pen holder 8, the first spring 11 and the second spring 12 are compressed, and then the elastic launching press piece 4 is pressed, and the convex point 401 presses the elastic launching protrusion 706, so that the elastic launching protrusion 706 is disengaged The bottom of the inner wall bump 802 of the pen holder 8, and then the first spring 11 bounces back to the limit shoulder 702, driving the pen refill 7 to move up rapidly, and at the same time driving the blood collection needle in the blood collection needle groove 703 to quickly launch a section of the end opening of the nib 10 , to realize the launch of the blood collection needle and complete the puncture. After the puncture is completed, the resilience of the second spring 12 will have a resilience to the bump 701 of the pen core 7, so that the blood collection needle in the blood collection needle groove 703 will return to the pen head 10. Shrink, that is, after the puncture is completed, the needle of the blood collection needle will not be exposed to the outer wall of the end opening of a section of the nib 10, but will be retracted to the inside. When the lancet is launched, the protruding sheet 704 of the pen core 7 can move quickly and linearly with the limit guide groove 801 as the guide rail, so that the movement of the pen core 7 is more stable without shaking, so that the front end of the pen core 7 The blood collection needle in the blood collection needle groove 703 can be punctured into the human body in a straight line, which can greatly reduce the pain of puncture. After the lancet is fired once, a new lancet is replaced in the same manner as above for the next puncture.
实施方式2：Implementation mode 2:
本实施方式为实施方式1的进一步改进，主要改进之处在于：在实施方式1中，采血针的穿刺深度不能调节，不能适用于多种情况的穿刺，而在本实施方式中，能够有效对采血针的穿刺深度进行调节甚至量化，具体地说：This embodiment is a further improvement of Embodiment 1. The main improvement is: in Embodiment 1, the puncture depth of the blood collection needle cannot be adjusted, and cannot be applied to puncture in various situations. In this embodiment, it can effectively The puncture depth of the lancet is adjusted and even quantified, specifically:
在本实施方式中的采血笔中，如图12至14，还包括三段笔头1，第三段笔头1的内壁底部具有螺牙101，一段笔头10的外壁具有螺纹轨道1001，三段笔头1套设在一段笔头10外壁且通过螺牙101与螺纹轨道1001螺纹连接。三段笔头1与二段笔头2之间通过螺纹轨道1001连接旋进的时候，旋进的距离越大，则采血针的穿刺深度越深，旋进的距离越小，则穿刺深度越浅。In the blood collection pen in this embodiment, as shown in Figures 12 to 14, it also includes a three-section pen head 1, the bottom of the inner wall of the third-section pen head 1 has screw teeth 101, and the outer wall of the first-section pen head 10 has a threaded track 1001, and the three-section pen head 1 It is sleeved on the outer wall of a section of the nib 10 and threadedly connected with the threaded track 1001 through the thread 101 . When the three-section nib 1 and the second-section nib 2 are connected and precessed through the threaded track 1001, the greater the precession distance, the deeper the puncture depth of the blood collection needle, and the smaller the precession distance, the shallower the puncture depth.
为了能够更进一步地方便调节穿刺深度，还可以在三段笔头1的内壁顶部设置等间距圆周分布的若干纵向凸筋102，一段笔头10的外壁两侧对称设置有能够卡在两两纵向凸筋102之间的限位凸点1002；当三段笔头1绕一段笔头10外壁的螺纹轨道1001旋进时，限位凸点1002能够越过各纵向凸筋102。这样设计之后，在旋进的过程中，限位凸点1002每越过一个纵向凸筋102，旋进的距离就会增加一个单位，纵向凸筋102和限位凸点1002的配合能够使得每次旋进的距离相等，能够有效量化控制穿刺深度。In order to further facilitate the adjustment of the puncture depth, a number of longitudinal ribs 102 that are equally spaced and circumferentially distributed can also be arranged on the top of the inner wall of the three-section nib 1, and two sides of the outer wall of the first section of the nib 10 are symmetrically provided with longitudinal ribs that can be stuck in two. 102 between the limiting bumps 1002; when the three sections of nibs 1 screw in around the threaded track 1001 of the outer wall of a nib 10, the limiting bumps 1002 can cross over the longitudinal ribs 102. After this design, in the process of screwing in, every time the limit protrusion 1002 crosses a longitudinal rib 102, the screw-in distance will increase by one unit, and the cooperation between the longitudinal rib 102 and the limit protrusion 1002 can make each time The precession distances are equal, which can effectively quantify and control the puncture depth.
为了能够直接读出穿刺的深度，更好地指导医护人员的穿刺操作，还可以在三段笔头1的底部外壁一周圆周等间距设置与各纵向凸筋102对应的穿刺深度刻度线103。限位凸点1002每越过一个纵向凸筋102，三段笔头1就会向一段笔头10旋进更近一步，则采血针发射时的穿刺深度则会更深一点，与每个纵向凸筋102对应的穿刺深度刻度线103则会直观地显示出穿刺的深度，非常方便医护人员使用。In order to be able to directly read the puncture depth and better guide the puncture operation of the medical staff, the puncture depth scale lines 103 corresponding to the longitudinal ribs 102 can also be set at equal intervals around the circumference of the outer wall of the bottom of the three-section nib 1 . Every time the limiting convex point 1002 crosses a longitudinal rib 102, the three-section nib 1 will be screwed closer to the first section of the nib 10, and the puncture depth of the blood collection needle will be deeper when it is fired, corresponding to each longitudinal rib 102 The puncture depth scale line 103 will visually display the puncture depth, which is very convenient for medical personnel to use.
为了便于医护人员读数，可以将三段笔头1的底部设计在位于一段笔头10与二段笔头2之间，二段笔头2的上沿开设用于显示穿刺深度刻度线103的读数窗口201。三段笔头1沿螺纹轨道1001每旋转一个单位，该读数窗口201就会显示唯一的一个读数，该读数就是采血针的穿刺深度，这样的设计使得医护人员更加便于读出当时穿刺的深度。In order to facilitate reading by medical personnel, the bottom of the three-section nib 1 can be designed between the first-section nib 10 and the second-section nib 2 , and the upper edge of the second-section nib 2 is provided with a reading window 201 for displaying the puncture depth scale line 103 . Every time the three-section nib 1 rotates one unit along the threaded track 1001, the reading window 201 will display a unique reading, which is the puncture depth of the blood collection needle. Such a design makes it easier for medical personnel to read the puncture depth at that time.
为了限制采血针的穿刺深度的上限，或者是为了防止三段笔头1过渡旋进，还可以在三段笔头1内壁上、各纵向凸筋102与螺牙101之间设置一条纵向阻止凸筋103，在一段笔头10的外壁上还设置有与不能越过该纵向阻止凸筋103的阻止凸点1003，当三段笔头1绕一段笔头10外壁的螺纹轨道1001旋进一周后，阻止凸点1003恰好与纵向阻止凸筋103有效接触，即纵向阻止凸筋103将阻止凸点1003阻挡住，防止三段笔头1进一步旋进。纵向阻止凸筋103和阻止凸点1003的设计使得三段笔头1最多只能沿螺纹轨道1001绕一段笔头10旋转360°。In order to limit the upper limit of the puncture depth of the blood collection needle, or to prevent the three-section nib 1 from excessively screwing in, a longitudinal preventing rib 103 can also be provided on the inner wall of the three-section nib 1 between each longitudinal rib 102 and the thread 101 On the outer wall of a section of the nib 10, there is also a blocking point 1003 that cannot cross the longitudinal blocking rib 103. When the three-section nib 1 is screwed into the threaded track 1001 on the outer wall of a section of the nib 10, the blocking point 1003 is just right. Effective contact with the longitudinal preventing rib 103, that is, the longitudinal preventing rib 103 will block the preventing convex point 1003, preventing the three-section nib 1 from further screwing in. The design of the longitudinal blocking rib 103 and the blocking bump 1003 makes the three-section nib 1 can only rotate 360° around one section of the nib 10 along the thread track 1001 at most.
除此之外，本实施方式与实施方式1完全相同，此处不做赘述。Apart from this, this embodiment is completely the same as Embodiment 1, and details are not repeated here.
实施方式3：Implementation mode 3:
本实施方式为实施方式2的进一步改进，主要改进之处在于：在实施方式2中，当穿刺结束后，需要将采血针从采血针槽703内取出，由于采血针槽703的深度通常大于采血针的长度，所以，人工取出比较麻烦。而在本实施方式中的采血笔中能够很方便地取出使用过的采血针。具体地说：This embodiment is a further improvement of Embodiment 2. The main improvement is that in Embodiment 2, after the puncture is completed, the blood collection needle needs to be taken out from the blood collection needle groove 703, because the depth of the blood collection needle groove 703 is usually greater than that of the blood collection needle. The length of the needle, so manual removal is more troublesome. However, the used blood collection needle can be taken out very conveniently in the blood collection pen in this embodiment. Specifically:
在本实施方式中，如图4和5，采血笔还包括卸针推杆5，卸针推杆5与笔芯7的侧壁平行设置且位于采血针槽703底壁的通孔705正下方，且其顶端卡在通孔705内，底端一侧固定连接有卸针手柄501，卸针手柄501位于二段笔头2与笔壳3的外壁之间。采血一次完成后，将一段笔头10和二段笔头2拆卸掉，既可以通过卸针手柄501将卸针推杆5上推，卸针推杆5上移时穿过采血针槽703底部的通孔705后将采血针槽703内的采血针上推，当采血针被卸针推杆5推到露出采血针槽703的上沿后就能够很方便地取出使用后的采血针，然后再通过卸针手柄501将卸针推杆5下移至采血针槽703下方，然后再向采血针槽703内放入新的采血针，接着将一段笔头10和二段笔头2重新与笔筒8螺纹连接，等待下一次采血。In this embodiment, as shown in Figures 4 and 5, the blood collection pen also includes a needle unloading push rod 5, which is arranged parallel to the side wall of the refill 7 and located directly below the through hole 705 on the bottom wall of the blood collection needle groove 703 , and its top is stuck in the through hole 705, and one side of the bottom end is fixedly connected with a needle unloading handle 501, and the needle unloading handle 501 is located between the second section of the nib 2 and the outer wall of the pen case 3. After the first blood collection is completed, the first section of the nib 10 and the second section of the nib 2 are disassembled, and the needle unloading push rod 5 can be pushed up through the needle unloading handle 501. After the hole 705, the blood collection needle in the blood collection needle groove 703 is pushed up. When the blood collection needle is pushed to the upper edge of the blood collection needle groove 703 exposed by the needle unloading push rod 5, the used blood collection needle can be easily taken out, and then passed through The needle unloading handle 501 moves the needle unloading push rod 5 down to the bottom of the blood collection needle slot 703, and then puts a new blood collection needle into the blood collection needle slot 703, and then re-connects the pen head 10 and the pen head 2 to the pen holder 8 with threads , waiting for the next blood collection.
除此之外，本实施方式与实施方式2完全相同，此处不做赘述。Apart from this, this embodiment is completely the same as Embodiment 2, and will not be repeated here.
上述实施方式只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所做的等效变换或修饰，都应涵盖在本发明的保护范围之内。The above-mentioned embodiments are only for illustrating the technical concept and characteristics of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910676153.0ACN110464363A (en) | 2019-07-25 | 2019-07-25 | Reduce the blood collecting pen for puncturing pain |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910676153.0ACN110464363A (en) | 2019-07-25 | 2019-07-25 | Reduce the blood collecting pen for puncturing pain |
| Publication Number | Publication Date |
|---|---|
| CN110464363Atrue CN110464363A (en) | 2019-11-19 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910676153.0APendingCN110464363A (en) | 2019-07-25 | 2019-07-25 | Reduce the blood collecting pen for puncturing pain |
| Country | Link |
|---|---|
| CN (1) | CN110464363A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113967016A (en)* | 2020-07-23 | 2022-01-25 | 仁宝电脑工业股份有限公司 | Puncture device and blood collection device |
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| CN202891945U (en)* | 2012-09-20 | 2013-04-24 | 北京瑞成医疗器械有限公司 | Painless blood sampling pen |
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| CN109394244A (en)* | 2018-11-26 | 2019-03-01 | 苏州施莱医疗器械有限公司 | A kind of blood collecting pen of biasing correcting and anti-secondary puncture |
| CN210843073U (en)* | 2019-07-25 | 2020-06-26 | 淮安市天达医疗器械有限公司 | Blood sampling pen capable of reducing puncture pain |
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101309642A (en)* | 2004-03-15 | 2008-11-19 | 香港澳维有限公司 | Blood collection device and method of use |
| CN102026580A (en)* | 2008-05-09 | 2011-04-20 | 生命扫描苏格兰有限公司 | Lancing device for priming and firing using non-contact bias actuation and method |
| CN201505140U (en)* | 2009-10-27 | 2010-06-16 | 天津华鸿医材有限公司 | Penetration depth-adjustable blood sampling pen |
| CN103458787A (en)* | 2011-04-08 | 2013-12-18 | 欧文蒙福德有限公司 | Skin penetration device |
| CN202891945U (en)* | 2012-09-20 | 2013-04-24 | 北京瑞成医疗器械有限公司 | Painless blood sampling pen |
| CN107205703A (en)* | 2015-02-19 | 2017-09-26 | 泉株式会社 | Syringe, lancet unit and pricking device |
| CN109394244A (en)* | 2018-11-26 | 2019-03-01 | 苏州施莱医疗器械有限公司 | A kind of blood collecting pen of biasing correcting and anti-secondary puncture |
| CN210843073U (en)* | 2019-07-25 | 2020-06-26 | 淮安市天达医疗器械有限公司 | Blood sampling pen capable of reducing puncture pain |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113967016A (en)* | 2020-07-23 | 2022-01-25 | 仁宝电脑工业股份有限公司 | Puncture device and blood collection device |
| CN113967016B (en)* | 2020-07-23 | 2024-04-12 | 仁宝电脑工业股份有限公司 | Puncture device and blood collection device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20191119 |