技术领域Technical Field
本发明属于注射笔设计技术领域，尤其涉及一种触发式机械注射笔。The invention belongs to the technical field of injection pen design, and in particular relates to a trigger-type mechanical injection pen.
背景技术Background Art
在医疗护理过程中，经常需要使用注射笔进行药物注射，现有的很多注射笔无法调节剂量，在使用过程中非常不方便，也给患者的健康带来隐患，另外，很多注射笔结构复杂，注射过程繁琐，影响医护人员的使用效率。In the process of medical care, it is often necessary to use an injection pen for drug injection. Many existing injection pens cannot adjust the dosage, which is very inconvenient during use and also poses a hidden danger to the patient's health. In addition, many injection pens have complex structures and cumbersome injection processes, which affects the efficiency of medical staff.
发明内容Summary of the invention
本发明旨在至少解决现有技术中存在的技术问题之一。The present invention aims to solve at least one of the technical problems existing in the prior art.
有鉴于此，本发明提供一种触发式注射笔，可实现剂量调节和一键注射，且结构简单，可提高注射药物剂量的准确性和注射效率。In view of this, the present invention provides a trigger injection pen, which can achieve dosage adjustment and one-touch injection, and has a simple structure, and can improve the accuracy of injected drug dosage and injection efficiency.
根据本发明实施例的触发式机械注射笔，包括：笔身，所述笔身形成为杆状，所述笔身内限定有沿其轴向贯通的第一通道；剂量调节旋钮，所述剂量调节旋钮设于所述笔身的一端且能够绕其轴向旋转，所述剂量调节旋钮上限定有沿其厚度方向贯通的第二通道；剂量调节座，所述剂量调节座内限定有沿其厚度方向贯通的第三通道，所述剂量调节座的一端与所述剂量调节旋钮相连且能够限定所述剂量调节旋钮的位置，所述剂量调节座的另一端插接于所述第一通道；储药组件，所述储药组件与所述笔身的另一端相连，所述储药组件内设有密封活塞；视窗筒，所述视窗筒设在所述第一通道内且设有沿其轴向贯通的视窗通道，所述视窗的一部分形成为镂空或透明或半透明件，所述视窗筒的一端穿过所述第三通道后伸入所述第二通道且与所述剂量调节旋钮啮合，所述视窗筒能够与所述剂量调节旋钮绕其轴向同步旋转且能够相对于所述剂量调节旋钮沿其轴向移动；计量显示杆，所述计量显示杆设于所述视窗通道且与所述视窗筒相连，所述计量显示杆能够绕其轴向旋转和沿其轴向活动，所述计量显示杆上设有沿其轴向贯通的第四通道；驱动杆，所述驱动杆设于所述视窗通道且沿其轴向延伸，所述驱动杆的一端插接于所述第四通道内且与所述计量显示杆螺纹连接，所述驱动杆的另一端设有限位部；第一弹性件，所述第一弹性件设于所述视窗通道且设于所述限位部和所述计量显示杆之间；释放按钮，所述释放按钮的至少一部分可活动地设于所述第二通道内且与所述驱动杆的另一端相对设置，所述释放按钮能够驱动所述驱动杆克服所述第一弹性件的弹性力带动所述视窗筒、所述计量显示杆同步朝着所述储药组件所在方向活动；螺杆座，所述螺杆座设于所述第一通道且能够绕其轴向旋转，所述螺杆座能够在所述视窗筒朝着所述储药组件所在方向活动至预设位置时限定所述视窗筒的位置，所述螺杆座上设有沿其厚度方向贯通的螺杆座通道；螺杆，所述螺杆的一端的至少一部分伸入所述螺杆座通道且与所述螺杆座螺纹连接，所述螺杆的另一端伸入所述储药组件的内部且与所述密封活塞相连。The trigger-type mechanical injection pen according to an embodiment of the present invention comprises: a pen body, the pen body is formed in a rod shape, a first channel is defined in the pen body and extends along its axial direction; a dose adjustment knob is arranged at one end of the pen body and can rotate around its axial direction, a second channel is defined on the dose adjustment knob and extends along its thickness direction; a dose adjustment seat is defined in the dose adjustment seat and a third channel is defined in the dose adjustment seat and extends along its thickness direction, one end of the dose adjustment seat is connected to the dose adjustment knob and can define the position of the dose adjustment knob, and the other end of the dose adjustment seat is plugged into the first channel; and a drug storage component , the medicine storage assembly is connected to the other end of the pen body, and a sealing piston is arranged in the medicine storage assembly; a window cylinder, the window cylinder is arranged in the first channel and is provided with a window channel extending along its axial direction, a part of the window is formed as a hollow or transparent or translucent part, one end of the window cylinder passes through the third channel and then extends into the second channel and engages with the dose adjustment knob, the window cylinder can rotate synchronously with the dose adjustment knob around its axial direction and can move relative to the dose adjustment knob along its axial direction; a metering display rod, the metering display rod is arranged in the window channel and connected to the window cylinder, the metering display rod The metering display rod is capable of rotating around its axial direction and moving along its axial direction, and a fourth channel is provided on the metering display rod and passes through the metering display rod along its axial direction; a driving rod, the driving rod is arranged in the window channel and extends along its axial direction, one end of the driving rod is inserted into the fourth channel and is threadedly connected to the metering display rod, and the other end of the driving rod is provided with a limiting portion; a first elastic member, the first elastic member is arranged in the window channel and is arranged between the limiting portion and the metering display rod; a release button, at least a part of the release button is movably arranged in the second channel and is arranged opposite to the other end of the driving rod, and the release button can drive the The driving rod overcomes the elastic force of the first elastic member to drive the window tube and the metering display rod to move synchronously toward the direction of the medicine storage assembly; a screw seat, the screw seat is arranged in the first channel and can rotate around its axial direction, the screw seat can limit the position of the window tube when the window tube moves to a preset position in the direction of the medicine storage assembly, and the screw seat is provided with a screw seat channel that passes through along the thickness direction thereof; a screw, at least a part of one end of the screw extends into the screw seat channel and is threadedly connected to the screw seat, and the other end of the screw extends into the interior of the medicine storage assembly and is connected to the sealing piston.
根据本发明实施例的触发式机械注射笔，采用笔身、剂量调节旋钮、剂量调节座、储药组件、视窗筒、计量显示杆、驱动杆、第一弹性件、释放按钮、螺杆座和螺杆相结合的结构，可通过剂量调节旋钮和视窗筒实现剂量调节，然后通过按压释放按钮进行一键注射，可提高注射效率，还具有结构简单、使用方便等优点。The trigger-type mechanical injection pen according to the embodiment of the present invention adopts a structure combining a pen body, a dosage adjustment knob, a dosage adjustment seat, a medicine storage component, a window tube, a metering display rod, a driving rod, a first elastic member, a release button, a screw seat and a screw. The dosage can be adjusted by the dosage adjustment knob and the window tube, and then a one-touch injection can be performed by pressing the release button, which can improve the injection efficiency and has the advantages of simple structure and easy use.
根据本发明实施例的触发式机械注射笔还可以具有以下附加技术特征：The trigger-type mechanical injection pen according to the embodiment of the present invention may also have the following additional technical features:
根据本发明的一个实施例，所述剂量调节旋钮的内壁面设有沿其轴向依次分布的调节旋钮齿槽和调节旋钮止回槽，所述调节旋钮齿槽与所述视窗筒的一端啮合，所述剂量调节座的一端设有能够与所述调节旋钮止回槽啮合的计量调节齿。According to one embodiment of the present invention, the inner wall surface of the dose adjustment knob is provided with an adjustment knob tooth groove and an adjustment knob check groove distributed in sequence along its axial direction, the adjustment knob tooth groove is engaged with one end of the window tube, and one end of the dose adjustment seat is provided with a metering adjustment tooth that can engage with the adjustment knob check groove.
根据本发明的一个实施例，所述计量调节齿为单向调节齿。According to one embodiment of the present invention, the metering adjustment teeth are unidirectional adjustment teeth.
根据本发明的一个实施例，所述第二通道的内壁面设有环形凸台，所述触发式机械注射笔还包括：第二弹性件，所述第二弹性件位于所述环形凸台和所述释放按钮之间。According to an embodiment of the present invention, an annular boss is provided on the inner wall surface of the second channel, and the trigger-type mechanical injection pen further comprises: a second elastic member, and the second elastic member is located between the annular boss and the release button.
根据本发明的一个实施例，所述视窗筒的下端的内壁面设有能够与所述螺杆座啮合的齿槽。According to one embodiment of the present invention, the inner wall surface of the lower end of the window tube is provided with a tooth groove capable of engaging with the screw seat.
根据本发明的一个实施例，所述驱动杆的一端限定有沿其轴向延伸的第五通道，所述螺杆的一端穿过所述螺杆座通道后伸入所述第五通道。According to an embodiment of the present invention, one end of the driving rod is defined with a fifth channel extending along its axial direction, and one end of the screw rod passes through the screw rod seat channel and then extends into the fifth channel.
根据本发明的一个实施例，所述驱动杆的内壁面设有沿其轴向延伸的导向筋，所述螺杆的一端的外周面上设有与所述导向筋相配合的导向槽。According to an embodiment of the present invention, the inner wall surface of the driving rod is provided with a guide rib extending along its axial direction, and the outer peripheral surface of one end of the screw rod is provided with a guide groove matching with the guide rib.
根据本发明的一个实施例，所述触发式机械注射笔还包括：垫片，所述垫片设于所述视窗通道且位于所述第一弹性件和所述计量显示杆之间，所述垫片能够沿着所述视窗通道的轴向活动。According to one embodiment of the present invention, the trigger-type mechanical injection pen further comprises: a gasket, which is disposed in the window channel and between the first elastic member and the metering display rod, and the gasket can move along the axial direction of the window channel.
根据本发明的一个实施例，所述第一弹性件为弹簧。According to an embodiment of the present invention, the first elastic member is a spring.
根据本发明的一个实施例，所述储药组件包括：笔芯架，所述笔芯架与所述笔身的另一端卡接；卡式瓶，所述卡式瓶设于所述笔芯架，所述卡式瓶内设有所述密封活塞；注射针，所述注射针设于所述卡式瓶且与所述密封活塞相对设置。According to one embodiment of the present invention, the medicine storage assembly includes: a refill rack, which is clamped with the other end of the pen body; a cartridge bottle, which is arranged on the refill rack and has the sealing piston arranged inside the cartridge bottle; and an injection needle, which is arranged on the cartridge bottle and is arranged opposite to the sealing piston.
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：The above and/or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
图1为根据本发明的实施例的触发式机械注射笔的结构示意图；FIG1 is a schematic structural diagram of a trigger-type mechanical injection pen according to an embodiment of the present invention;
图2是图1中线A-A的剖面图；Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1;
图3是图2中A区域的放大图；FIG3 is an enlarged view of area A in FIG2 ;
图4是根据本发明的实施例的触发式机械注射笔的笔身的立体结构示意图；FIG4 is a schematic diagram of the three-dimensional structure of the pen body of the trigger-type mechanical injection pen according to an embodiment of the present invention;
图5是根据本发明的实施例的触发式机械注射笔的剂量调节座的立体结构示意图；FIG5 is a schematic diagram of the three-dimensional structure of a dose adjustment seat of a trigger-type mechanical injection pen according to an embodiment of the present invention;
图6是根据本发明的实施例的触发式机械注射笔的剂量调节旋钮的剖面图；6 is a cross-sectional view of a dose adjustment knob of a trigger-type mechanical injection pen according to an embodiment of the present invention;
图7是根据本发明的实施例的触发式机械注射笔的剂量调节旋钮的俯视图；7 is a top view of a dose adjustment knob of a trigger-type mechanical injection pen according to an embodiment of the present invention;
图8是根据本发明的实施例的触发式机械注射笔的剂量调节旋钮和释放按钮的装配示意图；8 is a schematic diagram of the assembly of a dose adjustment knob and a release button of a trigger-type mechanical injection pen according to an embodiment of the present invention;
图9是根据本发明的实施例的触发式机械注射笔的剂量调节旋钮、释放按钮和视窗筒的装配示意图；9 is a schematic diagram of the assembly of a dose adjustment knob, a release button and a window barrel of a trigger-type mechanical injection pen according to an embodiment of the present invention;
图10是根据本发明的实施例的触发式机械注射笔的笔芯架和笔帽的装配示意图；10 is a schematic diagram of the assembly of the refill holder and the pen cap of the trigger-type mechanical injection pen according to an embodiment of the present invention;
图11是根据本发明的实施例的触发式机械注射笔的爆炸图。FIG. 11 is an exploded view of a trigger-type mechanical injection pen according to an embodiment of the present invention.
附图标记：Reference numerals:
触发式机械注射笔200；Trigger-type mechanical injection pen 200;
笔身10；Pen body 10;
剂量调节旋钮20；调节旋钮齿槽21；调节旋钮止回槽22；环形凸台24；Dose adjustment knob 20; adjustment knob tooth groove 21; adjustment knob check groove 22; annular boss 24;
剂量调节座30；计量调节齿31；Dosage adjustment seat 30; Dosage adjustment teeth 31;
储药组件40；笔芯架41；卡式瓶42；Medicine storage assembly 40; refill holder 41; cartridge bottle 42;
视窗筒50；Window tube 50;
计量显示杆60；Metering display rod 60;
驱动杆70；限位部71；第五通道72；Driving rod 70; limiting portion 71; fifth channel 72;
第一弹性件80；A first elastic member 80;
释放按钮90；Release button 90;
螺杆座110；Screw seat 110;
螺杆120；Screw 120;
第二弹性件130；垫片140；笔帽150。The second elastic member 130 ; the gasket 140 ; and the pen cap 150 .
具体实施方式DETAILED DESCRIPTION
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
下面首先结合附图具体描述根据本发明实施例的触发式机械注射笔200。The trigger-type mechanical injection pen 200 according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
如图1至图11所示，根据本发明实施例的触发式机械注射笔200包括笔身10、剂量调节旋钮20、剂量调节座30、储药组件40、视窗筒50、计量显示杆60、驱动杆70、第一弹性件80、释放按钮90、螺杆座110和螺杆120。As shown in FIGS. 1 to 11 , a trigger-type mechanical injection pen 200 according to an embodiment of the present invention includes a pen body 10 , a dose adjustment knob 20 , a dose adjustment seat 30 , a drug storage assembly 40 , a window tube 50 , a metering display rod 60 , a drive rod 70 , a first elastic member 80 , a release button 90 , a screw seat 110 and a screw 120 .
具体而言，笔身10形成为杆状，笔身10内限定有沿其轴向贯通的第一通道，剂量调节旋钮20设于笔身10的一端且能够绕其轴向旋转，剂量调节旋钮20上限定有沿其厚度方向贯通的第二通道，剂量调节座30内限定有沿其厚度方向贯通的第三通道，剂量调节座30的一端与剂量调节旋钮20相连且能够限定剂量调节旋钮30的位置，剂量调节座30的另一端插接于第一通道，储药组件40与笔身10的另一端相连，储药组件40内设有密封活塞，视窗筒50设在第一通道内且设有沿其轴向贯通的视窗通道，视窗的一部分形成为镂空或透明或半透明件，视窗筒50的一端穿过第三通道后伸入第二通道且与剂量调节旋钮20啮合，视窗筒50能够与剂量调节旋钮20绕其轴向同步旋转且能够相对于剂量调节旋钮20沿其轴向移动，计量显示杆60设于视窗通道且与视窗筒50相连以与其同步活动，计量显示杆60能够绕其轴向旋转和沿其轴向活动，计量显示杆60上设有沿其轴向贯通的第四通道，驱动杆70设于视窗通道且沿其轴向延伸，驱动杆70的一端插接于第四通道内且与计量显示杆60螺纹连接，驱动杆70的另一端设有限位部71，第一弹性件80设于视窗通道且设于驱动杆70和垫片140之间，释放按钮90的至少一部分可活动地设于第二通道内且与驱动杆70的另一端相对设置，释放按钮90能够驱动驱动杆70克服第一弹性件80的弹性力带动视窗筒50、计量显示杆60同步朝着储药组件40所在方向活动，螺杆座110设于第一通道且能够绕其轴向旋转，螺杆座110能够在视窗筒50朝着储药组件40所在方向活动至预设位置时限定视窗筒50的位置，螺杆座110上设有沿其厚度方向贯通的螺杆座通道，螺杆120的一端的至少一部分伸入螺杆座通道且与螺杆座110螺纹连接，螺杆120的另一端伸入储药组件40的内部且与密封活塞相连。Specifically, the pen body 10 is formed in a rod shape, a first channel is defined in the pen body 10 that penetrates along its axial direction, the dose adjustment knob 20 is provided at one end of the pen body 10 and can rotate around its axial direction, a second channel is defined on the dose adjustment knob 20 that penetrates along its thickness direction, a third channel is defined in the dose adjustment seat 30 that penetrates along its thickness direction, one end of the dose adjustment seat 30 is connected to the dose adjustment knob 20 and can define the position of the dose adjustment knob 30, the other end of the dose adjustment seat 30 is plugged into the first channel, and the drug storage component 40 is connected to the other end of the pen body 10. A sealing piston is provided in the medicine storage component 40, a window tube 50 is provided in the first channel and is provided with a window channel extending through the first channel along the axial direction thereof, a part of the window is formed as a hollow or transparent or translucent member, one end of the window tube 50 passes through the third channel and then extends into the second channel and engages with the dosage adjustment knob 20, the window tube 50 can rotate synchronously with the dosage adjustment knob 20 around its axial direction and can move relative to the dosage adjustment knob 20 along its axial direction, a metering display rod 60 is provided in the window channel and is connected to the window tube 50 to move synchronously therewith, the metering display rod 60 can rotate around its axial direction and move along its axial direction The metering display rod 60 is axially movable, a fourth channel is provided on the metering display rod 60 and extends along its axial direction, a driving rod 70 is provided in the window channel and extends along its axial direction, one end of the driving rod 70 is inserted into the fourth channel and is threadedly connected to the metering display rod 60, and a limiting portion 71 is provided at the other end of the driving rod 70, a first elastic member 80 is provided in the window channel and between the driving rod 70 and the gasket 140, at least a part of the release button 90 is movably provided in the second channel and is arranged opposite to the other end of the driving rod 70, and the release button 90 can drive the driving rod 70 to overcome the elastic force of the first elastic member 80 The sexual force drives the window cylinder 50 and the metering display rod 60 to move synchronously toward the direction of the medicine storage component 40. The screw seat 110 is arranged in the first channel and can rotate around its axial direction. The screw seat 110 can limit the position of the window cylinder 50 when the window cylinder 50 moves to a preset position in the direction of the medicine storage component 40. The screw seat 110 is provided with a screw seat channel that passes through along the thickness direction thereof. At least a portion of one end of the screw 120 extends into the screw seat channel and is threadedly connected to the screw seat 110. The other end of the screw 120 extends into the interior of the medicine storage component 40 and is connected to the sealing piston.
换言之，根据本发明实施例的触发式机械注射笔200主要由笔身10、剂量调节旋钮20、剂量调节座30、储药组件40、视窗筒50、计量显示杆60、驱动杆70、第一弹性件80、释放按钮90、螺杆座110和螺杆120组成，笔身10内限定有柱形的第一通道，在第一通道内可安装有视窗筒50、计量显示杆60、驱动杆70和第一弹性件80。如图1所示，以笔身10沿上下方向延伸为例，在笔身10的上端可安装有释放按钮90、剂量调节旋钮20和剂量调节座30，在笔身10的下端可安装有储药组件40，螺杆120可安装在笔身10和储药组件40之间。In other words, the trigger-type mechanical injection pen 200 according to the embodiment of the present invention mainly comprises a pen body 10, a dosage adjustment knob 20, a dosage adjustment seat 30, a drug storage assembly 40, a window tube 50, a metering display rod 60, a driving rod 70, a first elastic member 80, a release button 90, a screw seat 110 and a screw 120. A cylindrical first channel is defined in the pen body 10, and the window tube 50, the metering display rod 60, the driving rod 70 and the first elastic member 80 can be installed in the first channel. As shown in FIG. 1 , taking the pen body 10 extending in the up-down direction as an example, the release button 90, the dosage adjustment knob 20 and the dosage adjustment seat 30 can be installed at the upper end of the pen body 10, the drug storage assembly 40 can be installed at the lower end of the pen body 10, and the screw 120 can be installed between the pen body 10 and the drug storage assembly 40.
在进行剂量调节时，首先，顺时针旋转剂量调节旋钮20，由于剂量调节旋钮20与视窗筒50啮合，剂量调节旋钮20能够带动视窗筒50进行顺时针旋转。随后，由于计量显示杆60设于视窗筒50内的视窗通道内且与视窗50相连，在视窗筒50进行顺时针旋转时，计量显示杆60向上运动，需要说明的是，可以在计量显示杆60的外周面上设有盘旋向上延伸的弧形突起，该弧形突起可以与视窗筒50卡住，计量显示杆60也可以通过其他方式实现其与视窗筒50之间的连接以在视窗筒50旋转时向上运动。接着，由于在视窗通道内安装有第一弹性件80，第一弹性件80可位于驱动杆70和垫片140之间，在计量显示杆60向上运动时，给第一弹性件80施加向上的挤压力，第一弹性件80受到挤压向上压缩，此时计量调节操作完成。When adjusting the dosage, first, rotate the dosage adjustment knob 20 clockwise. Since the dosage adjustment knob 20 is engaged with the window barrel 50, the dosage adjustment knob 20 can drive the window barrel 50 to rotate clockwise. Subsequently, since the metering display rod 60 is disposed in the window channel in the window barrel 50 and is connected to the window 50, when the window barrel 50 rotates clockwise, the metering display rod 60 moves upward. It should be noted that an arc-shaped protrusion that spirals and extends upward can be provided on the outer circumference of the metering display rod 60, and the arc-shaped protrusion can be stuck with the window barrel 50. The metering display rod 60 can also be connected to the window barrel 50 in other ways so as to move upward when the window barrel 50 rotates. Next, since the first elastic member 80 is installed in the window channel, the first elastic member 80 can be located between the driving rod 70 and the gasket 140. When the metering display rod 60 moves upward, an upward extrusion force is applied to the first elastic member 80. The first elastic member 80 is squeezed and compressed upward, and the metering adjustment operation is completed.
在进行注射时，首先，向下按压释放按钮90，释放按钮90向下运动。释放按钮90安装在笔身10的上方，在计量显示杆60上设有沿其轴向贯通的第四通道，驱动杆70的下端插接至第四通道内且与计量显示杆60的内壁面螺纹连接，驱动杆70的上端与释放按钮90相对设置。因此，在释放按钮90向下活动的过程中，推动驱动杆70的上端，使驱动杆70向下活动，第一弹性件80的上端受到限位部71的限位下移。计量显示杆60由于与驱动杆70螺纹连接，也发生下移，与计量显示杆60相连的视窗筒50同样也发生下移。此时，第一弹性件80为压缩状态，且第一弹性件80的下端受到限位作用，在压缩力的所用下，驱动杆70反向向上移动；接着，与驱动杆70螺纹连接的计量显示杆60转动；随后，与计量显示杆60相连的视窗筒50同向转动，视窗筒50带动螺杆座110同步转动，由于螺杆座11内的螺杆座通道内螺纹连接有螺杆120，螺杆座11不沿着上下方向移动，由此螺杆120不发生转动且进行轴向移动，从而推动密封活塞在储药组件40的内部活动，进而完成注射过程。When performing an injection, first, the release button 90 is pressed downward, and the release button 90 moves downward. The release button 90 is installed above the pen body 10, and a fourth channel is provided on the metering display rod 60 that penetrates along its axial direction. The lower end of the driving rod 70 is inserted into the fourth channel and is threadedly connected to the inner wall surface of the metering display rod 60, and the upper end of the driving rod 70 is arranged opposite to the release button 90. Therefore, during the downward movement of the release button 90, the upper end of the driving rod 70 is pushed to make the driving rod 70 move downward, and the upper end of the first elastic member 80 is limited by the limiting portion 71 and moves downward. The metering display rod 60 also moves downward because it is threadedly connected to the driving rod 70, and the window tube 50 connected to the metering display rod 60 also moves downward. At this time, the first elastic member 80 is in a compressed state, and the lower end of the first elastic member 80 is limited. Under the application of the compression force, the driving rod 70 moves upward in the opposite direction; then, the metering display rod 60 threadedly connected to the driving rod 70 rotates; then, the window cylinder 50 connected to the metering display rod 60 rotates in the same direction, and the window cylinder 50 drives the screw seat 110 to rotate synchronously. Since the screw seat channel in the screw seat 11 is threadedly connected with the screw 120, the screw seat 11 does not move in the up and down direction, so that the screw 120 does not rotate and moves axially, thereby pushing the sealing piston to move inside the medicine storage assembly 40, thereby completing the injection process.
由此，根据本发明实施例的触发式机械注射笔200，采用笔身10、剂量调节旋钮20、剂量调节座30、储药组件40、视窗筒50、计量显示杆60、驱动杆70、第一弹性件80、释放按钮90、螺杆座110和螺杆120相结合的结构，可通过剂量调节旋钮20和视窗筒50实现剂量调节，然后通过按压释放按钮90进行一键注射，可提高注射效率，还具有结构简单、使用方便等优点。Therefore, the trigger-type mechanical injection pen 200 according to the embodiment of the present invention adopts a structure that combines the pen body 10, the dosage adjustment knob 20, the dosage adjustment seat 30, the medicine storage component 40, the window tube 50, the metering display rod 60, the driving rod 70, the first elastic member 80, the release button 90, the screw seat 110 and the screw 120. The dosage can be adjusted by the dosage adjustment knob 20 and the window tube 50, and then the release button 90 is pressed to perform a one-touch injection, which can improve the injection efficiency and has the advantages of simple structure and easy use.
如图5至图7所示，根据本发明的一个实施例，剂量调节旋钮20的内壁面设有沿其轴向依次分布的调节旋钮齿槽21和调节旋钮止回槽22，调节旋钮齿槽21与视窗筒50的一端啮合，剂量调节座30的一端设有能够与调节旋钮止回槽22啮合的计量调节齿31，不仅能够实现剂量调节旋钮20和剂量调节座30之间的安装，还能够控制剂量调节程度。As shown in Figures 5 to 7, according to one embodiment of the present invention, the inner wall surface of the dose adjustment knob 20 is provided with an adjustment knob tooth groove 21 and an adjustment knob check groove 22 distributed in sequence along its axial direction, the adjustment knob tooth groove 21 is engaged with one end of the window tube 50, and one end of the dose adjustment seat 30 is provided with a metering adjustment tooth 31 that can engage with the adjustment knob check groove 22, which can not only realize the installation between the dose adjustment knob 20 and the dose adjustment seat 30, but also control the degree of dose adjustment.
在本发明的一些具体实施方式中，计量调节齿31为单向调节齿，能够防止剂量调节旋钮20回退。In some specific embodiments of the present invention, the metering adjustment tooth 31 is a one-way adjustment tooth, which can prevent the dose adjustment knob 20 from retreating.
优选地，第二通道的内壁面设有环形凸台24，触发式机械注射笔200还可包括：第二弹性件130，第二弹性件130位于环形凸台24和释放按钮90之间，环形凸台24的凸台面可以限定释放按钮90的向下运动的位移。也就是说，在按压释放按钮90时，需要克服第二弹性件130的弹性力，并且在按压完毕后释放按钮90可以在第二弹性件130的回复力的作用下复位。Preferably, the inner wall surface of the second channel is provided with an annular boss 24, and the trigger-type mechanical injection pen 200 may further include: a second elastic member 130, the second elastic member 130 is located between the annular boss 24 and the release button 90, and the boss surface of the annular boss 24 can limit the downward movement displacement of the release button 90. That is, when the release button 90 is pressed, the elastic force of the second elastic member 130 needs to be overcome, and after the pressing is completed, the release button 90 can be reset under the action of the restoring force of the second elastic member 130.
根据本发明的一个实施例，视窗筒50的下端的内壁面设有能够与螺杆座110啮合的齿槽。According to one embodiment of the present invention, the inner wall surface of the lower end of the window tube 50 is provided with a tooth groove that can engage with the screw seat 110 .
在本发明的一些具体实施方式中，驱动杆70的一端限定有沿其轴向延伸的第五通道72，螺杆120的一端穿过螺杆座通道后伸入第五通道72，能够对螺杆120起到导向作用。In some specific embodiments of the present invention, one end of the driving rod 70 is defined with a fifth channel 72 extending along its axial direction. One end of the screw rod 120 passes through the screw seat channel and extends into the fifth channel 72 , which can guide the screw rod 120 .
可选地，驱动杆70的内壁面设有沿其轴向延伸的导向筋，螺杆120的一端的外周面上设有与导向筋相配合的导向槽，能够对螺杆120进一步起到导向作用。Optionally, the inner wall surface of the driving rod 70 is provided with a guide rib extending along its axial direction, and the outer peripheral surface of one end of the screw rod 120 is provided with a guide groove matching with the guide rib, which can further guide the screw rod 120.
进一步地，触发式机械注射笔100还可包括垫片140，垫片140设于视窗通道且位于第一弹性件80和计量显示杆60之间，垫片140能够沿着视窗通道的轴向活动，第一弹性件80位于驱动杆70和垫片140之间，垫片140能够使第一弹性件80受力更加均匀。Furthermore, the trigger-type mechanical injection pen 100 may also include a gasket 140, which is disposed in the window channel and between the first elastic member 80 and the metering display rod 60. The gasket 140 can move along the axial direction of the window channel. The first elastic member 80 is located between the driving rod 70 and the gasket 140. The gasket 140 can make the force on the first elastic member 80 more uniform.
根据本发明的一个实施例，第一弹性件80为弹簧，来源广泛，价格低廉。According to an embodiment of the present invention, the first elastic member 80 is a spring, which is widely available and inexpensive.
如图1、图2、图9和图10所示，在本发明的一些具体实施方式中，储药组件40可包括笔芯架41、卡式瓶42和注射针，笔芯架41与笔身10的另一端卡接，卡式瓶42设于笔芯架41，卡式瓶42内设有密封活塞，在卡式瓶42内可充入注射液，注射针设于卡式瓶42且与密封活塞相对设置，在螺杆120的作用下，密封活塞能够将注射液从注射针中推出。As shown in FIGS. 1 , 2 , 9 and 10 , in some specific embodiments of the present invention, the medicine storage assembly 40 may include a refill frame 41, a cartridge bottle 42 and an injection needle. The refill frame 41 is clamped with the other end of the pen body 10 , the cartridge bottle 42 is disposed in the refill frame 41 , a sealing piston is disposed in the cartridge bottle 42 , and the cartridge bottle 42 can be filled with injection liquid. The injection needle is disposed in the cartridge bottle 42 and is arranged opposite to the sealing piston. Under the action of the screw 120 , the sealing piston can push the injection liquid out of the injection needle.
需要说明的是，根据本发明实施例的触发式机械注射笔200还包括笔帽150，在笔芯架41的外周可设有凸起，在笔帽150的内壁面设有环形卡槽，在安装时，可以将笔帽150套设在笔芯支架41上，此时凸起可以卡进环形卡槽内。为了进一步提高对于笔帽150的限位效果，在笔芯支架41上还可设有环形突起，环形突起可位于凸起的上方，在笔帽150套设在笔芯支架41上后，环形突起能起到限位作用。It should be noted that the trigger-type mechanical injection pen 200 according to the embodiment of the present invention further includes a pen cap 150, a protrusion may be provided on the outer periphery of the pen core holder 41, and an annular groove is provided on the inner wall surface of the pen cap 150. During installation, the pen cap 150 may be sleeved on the pen core holder 41, and the protrusion may be inserted into the annular groove. In order to further improve the limiting effect of the pen cap 150, an annular protrusion may be provided on the pen core holder 41, and the annular protrusion may be located above the protrusion. After the pen cap 150 is sleeved on the pen core holder 41, the annular protrusion can play a limiting role.
总而言之，根据本发明实施例的触发式机械注射笔200，采用笔身10、剂量调节旋钮20、剂量调节座30、储药组件40、视窗筒50、计量显示杆60、驱动杆70、第一弹性件80、释放按钮90、螺杆座110和螺杆120相结合的结构，可通过剂量调节旋钮20和视窗筒50实现剂量调节，然后通过按压释放按钮90进行一键注射，可提高注射效率，还具有结构简单、使用方便等优点。In summary, the trigger-type mechanical injection pen 200 according to the embodiment of the present invention adopts a structure that combines a pen body 10, a dosage adjustment knob 20, a dosage adjustment seat 30, a medicine storage assembly 40, a window tube 50, a metering display rod 60, a driving rod 70, a first elastic member 80, a release button 90, a screw seat 110 and a screw 120. The dosage can be adjusted by the dosage adjustment knob 20 and the window tube 50, and then the release button 90 is pressed to perform a one-touch injection, which can improve the injection efficiency and has the advantages of simple structure and easy use.
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010860743.1ACN111840706B (en) | 2020-08-25 | 2020-08-25 | Trigger type mechanical injection pen |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010860743.1ACN111840706B (en) | 2020-08-25 | 2020-08-25 | Trigger type mechanical injection pen |
| Publication Number | Publication Date |
|---|---|
| CN111840706A CN111840706A (en) | 2020-10-30 |
| CN111840706Btrue CN111840706B (en) | 2024-11-01 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010860743.1AActiveCN111840706B (en) | 2020-08-25 | 2020-08-25 | Trigger type mechanical injection pen |
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| CN (1) | CN111840706B (en) |
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| CN114681718B (en)* | 2022-03-30 | 2024-03-19 | 宁波睿爱产品设计有限公司 | Multiple quantitative injector |
| CN115501426A (en)* | 2022-10-20 | 2022-12-23 | 江苏德尔福医疗器械有限公司 | Injection pen and injection method thereof |
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110269977A (en)* | 2019-05-14 | 2019-09-24 | 江苏德尔福医疗器械有限公司 | Dosage is adjustable injection pen |
| CN212631364U (en)* | 2020-08-25 | 2021-03-02 | 江苏德尔福医疗器械有限公司 | Trigger type mechanical injection pen |
| Publication number | Priority date | Publication date | Assignee | Title |
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| BR112013023840B1 (en)* | 2011-03-18 | 2021-05-04 | Becton, Dikinson And Company | medicine injection pen |
| RU2721930C1 (en)* | 2017-08-08 | 2020-05-25 | Ганьсу Чаньджи Байо-Фармасьютикал Ко., Лтд. | Fine-tunable autoinjector |
| CN208905879U (en)* | 2018-05-04 | 2019-05-28 | 上海优米泰医疗科技有限公司 | Calibrated shot pen with hiding injection needle |
| CN110269978B (en)* | 2019-05-14 | 2020-07-31 | 江苏德尔福医疗器械有限公司 | Injection pen |
| CN211301522U (en)* | 2019-05-17 | 2020-08-21 | 中山汇丰医用包装科技有限公司 | Disposable injection pen |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110269977A (en)* | 2019-05-14 | 2019-09-24 | 江苏德尔福医疗器械有限公司 | Dosage is adjustable injection pen |
| CN212631364U (en)* | 2020-08-25 | 2021-03-02 | 江苏德尔福医疗器械有限公司 | Trigger type mechanical injection pen |
| Publication number | Publication date |
|---|---|
| CN111840706A (en) | 2020-10-30 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| GR01 | Patent grant |