M244915 捌、新型說明 (新型說明應敘明：新型所屬之技術領域、先前技術、內容、實施方式及圖式簡單說明） 【新型所屬之技術領域】 本創作係與注射器有關，特別是指一種自毀式注射器。 【先前技術】 5 按，習用的注射器在注射完後，可能被再一次使用注 射，因而將造成受注射者感染的情形。 因此，即有多種不同結構的自毀式注射器因應而生， 但是，其中不乏多種極為複雜的設計，其成本偏高或操作 困難而無法廣被採用；另外，又有一些簡單的設計，但是 10 其可能造成注射之正確性不良，或者仍可重覆使用，或容 易被拿來回收處理後使用等主要問題。 例如，一般自毁式的注射器，通常是在推桿上直接一 體成形一卡合件其可斷離而可卡止於針筒預定部位，這樣 的設計大部份必須加設一膠塞，因為模具成形脫模一體式 15 的卡止緣較為困難，或者其分模線須位於外周或縱向而無 法與該針筒之内孔密封，容易造成漏液。 【新型内容】 申請人有鑑於上述缺失，因此加以苦心研發本創作自 20 毁式注射器，其可達成以下各創作目的。 本創作之主要目的，即在提供一種自毁式注射器，其 完成注射後可使止塞組保持位於針筒内部，而可防止重覆 使用。 本創作之次一目的，更在提供一種自毁式注射器，其 VI續次頁（新型說明頁不敷使用時，請註記並使用續頁） -4- M244915 新型說明書，續頁 可使構件之製造容易，組合及操作方便。 本創作之另一目的，又在提供一種自毁式注射器，其 更可使該止塞組與該針筒之容置孔滑移具有平衡作用。 本創作之再一目的，更在提供一種自毁式注射器，其 5 可使該推桿之拉斷部不會因旋轉而產生扭轉斷裂。 緣以達成前揭創作目的，本創作所提供自毀式注射 器，係可供一針頭之接設，該注射器包含有一針筒具有一 筒身設有一容置孔，一止推部由該筒身向針頭方向形成， 一卡止部形成於該容置孔内緣，一針頭接部供針頭之裝 10 設；一推桿具有一桿身，一卡接件接設於該桿身，以及一 推拉部設於其後端供手指之推拉用；一止塞組具有一塞體 呈圓盤狀而可活動塞設於該針筒之容置孔，一卡止緣形成 於該塞體係可彈性變形地向前通過該針筒之卡止部接著於 後退時卡設於該針筒之卡止部，一平衡筒地接設於該塞體 15 而可彈性内縮向後延伸並形成有一平衡抵緣抵設於該針筒 之容置孔孔壁，一卡接件接設於該塞體而可與該推桿之卡 接件卡接使與該推桿連動；當該止塞組受該推桿回拉時， 該推桿之卡接件或該止塞組之卡接件係可產生斷離，該推 桿回拉而該止塞組仍卡止於該針筒，使注射器無法再度使 20 用。 【實施方式】 為使更了解本創作之特點及功效，玆舉以下實施例並 配合圖式說明如下： -5- M244915 新型說明書，續頁 '、請參閱第-圖至第六圖，本創作一較佳實施例自毁式 /主射益，係接設一針頭（N);該注射器包含有： -針筒⑽’具有-筒身⑼呈直筒狀設有一容置孔 (12)，一止推部（13)由該筒身（11)向針頭(N)方向形成，—卡 5止部⑽形成於該容置孔（12)内前段，一针頭接部⑽供針 頭（N)之裝設，一手持耳（17)接設於該筒身（ιι)後端，—推 桿擋緣（18)設於接近容置孔（12)開口處。 一推桿(30)，具有一桿身（31)可插設該針筒（1〇)之容置 孔（12)，一卡接件（33)接設於該桿身（31)，一拉斷部（3句形 10成於β桿身（31)與卡接件⑺)之間，_勾接部⑻)形成於該 卡接件（33)外周，一抵部（36)位於該桿身（31)前端，一推拉 部（37)設於其後端供手指之推拉，以及一止脫部（38)可抵止 於該針筒（10)之推桿擋緣（18)。 一止塞組(40)，係以塑膠材料PE (p〇lyethylene，聚乙 15烯）射出成型，具有一塞體(41)呈錐形圓盤狀而可略為彈性 變形，一卡止緣(42)形成於該塞體(41)外周而可向前通過及 向後卡止於該針筒（10)之卡止部（15)，於本實施例中該卡止 緣(42)係恰可密封該針筒（10)之容置孔（12)，一卡接件（43) 接設於該塞體(41)對應該推桿(30)方向，一卡接孔(44)形成 20於該卡接件（43)内，一勾接部（45)形成於該卡接孔(44)而可 與忒推桿(3〇)之勾接部（35)勾接，一抵部（46)可與該推桿(3〇) 之抵邵（36)頂抵，以及一延伸桿(47)接設於前端。 此外，該止塞組(40)更有一平衡筒（48)呈環筒形接設於 该塞體（41)而可彈性内縮地向後延伸，並於該平衡筒（48) -6- M244915 新型說明書$賣胃 外周形成有一平衡抵緣（481)抵設於該針筒（10)之容置孔 (12)孔壁，該平衡抵緣（481)係亦可兼具密封之作用；以及 更形成有一環槽(49)於該塞體(41)内側，使向前推進時該塞 體(41)更方便彈性變形。 5 有關本實施例之操作情形，玆說明如下： 其向前推動操作時，如第三圖所示，係該推桿(30)向前 推使以其抵部（36)推抵該止塞組(40)之抵部（46)，該止塞組 (40)之卡止緣(42)即迫抵該針筒（1〇)之卡止部（15)略為彈性 變形而通過；在推動過程中，該止塞組(4〇)平衡筒（48)之平 10 衡抵緣(481)係抵設於該針筒（10)之容置孔（12)孔壁，而可使 遠止森組(40)於保持平衡；接著，如第四圖所示，將該推桿 (30)推到底使該止塞組(4〇)之塞體（41)壓抵至該針筒（1〇)之 止推部（13)，而可將葯液注射出。 其向後回拉操作時，如第五圖所示，該推桿(3〇)回拉即 15帶動該止塞組(40)位移，而使該止塞組(40)之卡止緣(42)將 擋抵於該針筒（10)之卡止部（15)，而使該止塞組(40)無法再 位移；此時，若再持續用力拉動該推桿(30)即會並 (34)斷離，而使得推桿(30)可以回拉，而該推桿⑽斷離; 卡接件（33)與止塞組（40)仍卡止於該針筒（1〇)之容置孔 20 (12)，如第^圖所示。 因此’該注射器此時即呈業界所稱之自毁狀態，無法 再被重覆使用而具有安全性。 另外，由於該止塞組(40)採單件式而可由軸向脫模，立 形成之分模線不會影響其卡止緣(42)與該針筒⑽之容置 M244915 新型說明書n胃 孔（12)之密封，因此可不使用膠塞。 本創作之構件製造成本可大為降低，且具備自鍍功 能’因此可望取代傳統式注射器的市場。 除了以上實施例之外，本創作亦可實施如下： 5 除了以上的實施例之外，前述該止塞組之平衡筒係亦 可為其他各種結構，如第七圖所示，其中該平衡筒係由多 片之平衡片（48A)呈等分排列而成。 又’本創作該推桿與止塞組亦可作如下之設計： 如第八圖所示，該推桿更具有一卡轉部（39A)其係由若 10 干之凸條(391)組合而成；另外，該止塞組亦具有一卡轉部 (46A)其係由若干之卡槽(461)組合而成’該止塞組之卡轉部 (46A)係可與該推桿之卡轉部（39A)卡合而可防止該推桿與 止塞組間之相對軸向轉動，使該推桿之拉斷部（34)不因旋轉 而產生扭轉斷裂之情形。 15 另外，如第九圖所示，該止塞組亦可更具有一膠塞(5〇) 裝設於該▲體之前端，以提供相對該針筒之容置孔密封作 用；或者，亦可裝設於該塞體之後端（圖未示）。 再者，如第十圖所示，本創作該止塞組之塞體(41A)係 亦可為呈平面形圓盤狀之設計。 20 以及，如第十一圖所示，該止塞組之卡接件（43A)係為 若干爪片其可彈性彎曲變形，而其勾接部（45A)係為一倒勾 形成於該各卡接件(43A)。 或者，如第十二圖所示，該推桿之卡接件（33B)與該止 塞組之卡接件(43B)係與前一實施例中的結構互換，而該推 -8- M244915 新型說明書$賣頁 桿回拉時可將該止塞組之卡接件（43B)拉動而與該止塞組 之主體斷離分離。 由以上各實施例說明，可歸納本創作之特點如下： 1. 本創作自毁式注射器，其完成注射後可使止塞組保持 5 卡止於該針筒内部，而可防止重覆使用。 2. 本創作自毀式注射器，其止塞組及推桿之組合及分離 結構簡易，構件簡單且製造成本低，以及具有操作方便等 功效。 3. 本創作自毁式注射器，其更可使止塞組與針筒之容置 10 孔間滑移具有平衡作用。 4. 本創作自毀式注射器，其中推桿與止塞組之卡轉部可 相互卡止，使該推桿之拉斷部不會因旋轉而產生扭轉斷裂。 -9- M244915 新型說明書續頁 【圖式簡單說明】 第一圖係本創作一較佳實施例之組合剖視圖。 第二圖係本創作一較佳實施例之平面分解圖。 第三圖係本創作一較佳實施例之一操作狀態圖，顯示 5 止塞組迫抵針筒之卡止部之狀態。 第四圖係本創作一較佳實施例另一操作示意圖，顯示 推桿將止塞組推到底之狀態。 第五圖係本創作一較佳實施例再一操作示意圖，顯示 推桿稍微拉回連動止塞組之狀態。 10 第六圖係本創作一較佳實施例又一操作示意圖，顯示 推桿之拉斷部斷離之狀態。 第七圖係本創作另一止塞組之立體圖。 第八圖係本創作另一推桿及止塞組之分解立體圖。 第九圖係本創作止塞組加裝一膠塞之組合圖。 15 第十圖係本創作又一止塞組之剖視圖，顯示其塞體概 呈平面形圓盤狀之結構。 第十一圖係本創作更一止塞組之剖視圖，顯示該卡接 件形成有若干卡爪之結構。 第十二圖係本創作推桿與止塞組之平面分解示意圖， 20 顯示二者卡接結構互換之狀態。 M244915 新型說明書ft胃 5 10 15 20 【主要代表符號】 針頭（N) 針筒（10) 筒身（11) 容置孔（12) 止推部（13) 卡止部（15) 推桿擋緣（18) 推桿(30) 針頭接部（16) 手持耳（17) 桿身（31) 卡接件(33)(33B) 拉斷部（34) 勾接部（35) 抵部（36) 推拉部（37) 止脫部（38) 卡轉部（39A) 止塞組（40) 凸條(391) 塞體(41)(41A) 卡止緣(42) 卡接件(43)(43A)(43B) 勾接部(45)(45A) 卡接孔(44) 抵部（46) 延伸桿(47) 卡轉部(46 A) 卡槽(461) 平衡筒（48) 環槽(49) 膠塞(50) 平衡片（48A) 平衡抵緣(481) -11 -M244915 新型, description of the new type (new type description should state: the technical field, prior technology, content, implementation and drawings of the new type briefly) [technical field to which the new type belongs] This creation is related to a syringe, especially a self-contained Destroyed syringe. [Prior art] 5 Press. After the injection is completed, the conventional syringe may be injected again, which will cause the infected person to become infected. Therefore, there are many kinds of self-destructive syringes with different structures. However, many of them have extremely complicated designs, which have high cost or difficult operation and cannot be widely used. In addition, there are some simple designs, but 10 It may cause major problems such as poor injection accuracy, or re-use, or easy to be recycled for use after processing. For example, generally self-destructive syringes usually have an engaging piece formed directly on the push rod, which can be disconnected and can be locked at a predetermined position of the syringe. Most of such designs must be equipped with a rubber stopper, because The locking edge of the mold forming and demolding integrated 15 is difficult, or the parting line must be located on the outer circumference or longitudinal direction and cannot be sealed with the inner hole of the syringe, which is likely to cause liquid leakage. [New content] In view of the above-mentioned shortcomings, the applicant has painstakingly researched and developed this creation from a 20-destruction syringe, which can achieve the following creative purposes. The main purpose of this creation is to provide a self-destructing syringe that can keep the stopper group inside the syringe after injection and prevent repeated use. The second purpose of this creation is to provide a self-destructing syringe with a VI continuation page (when the new instruction page is insufficient, please note and use the continuation page) -4- M244915 Easy to manufacture, easy to assemble and operate. Another object of this creation is to provide a self-destructing syringe, which can make the stopper group and the accommodation hole of the syringe slide in a balanced manner. Another purpose of this creation is to provide a self-destructing syringe, which can prevent the pull-off part of the push rod from twisting and breaking due to rotation. In order to achieve the purpose of the previous disclosure, the self-destructive syringe provided by this creation can be connected with a needle. The syringe includes a syringe with a barrel with an accommodation hole, and a thrust part is formed by the barrel. It is formed toward the needle direction, a locking portion is formed at the inner edge of the accommodation hole, a needle connection portion is provided for the needle installation; a push rod has a shaft, a clip is connected to the shaft, and a A push-pull part is provided at the rear end for pushing and pulling of fingers; a stopper group has a plug-shaped body that can be movably plugged into the receiving hole of the syringe, and a locking edge formed on the plug system can be elastic Deformedly passed forward through the locking portion of the syringe and then locked in the locking portion of the syringe when it was retracted. A balance cylinder was grounded to the plug body 15 to elastically retract and extend rearward to form a balanced contact. The edge is abutted against the wall of the receiving hole of the syringe, a clip is connected to the plug body and can be connected with the clip of the push rod to be linked with the push rod; when the stopper group is subject to the When the push rod is pulled back, the snap member of the push rod or the snap member of the stopper group can be disconnected. The push rod is pulled back and the stop The stopper is still locked in the syringe, making the syringe unusable. [Embodiment] In order to better understand the characteristics and effects of this creation, the following examples are given together with the illustrations as follows: -5- M244915 New Manual, Continued ', please refer to Figure-Figure 6 to Figure 6, this creation A preferred embodiment is self-destructing / main shooting, and a needle (N) is connected; the syringe includes:-a syringe ⑽ 'has-a cylindrical body ⑼ is provided with a receiving hole (12) in a straight shape, a The thrust part (13) is formed by the barrel (11) in the direction of the needle (N), the card 5 stop part 前 is formed in the front section of the accommodation hole (12), and a needle connection part ⑽ is provided for the needle (N). In the installation, a hand-held ear (17) is connected to the rear end of the barrel (ιι), and a push rod retaining edge (18) is provided near the opening of the accommodation hole (12). A push rod (30) has a shaft (31) into which a receiving hole (12) of the syringe (10) can be inserted, a clip (33) is connected to the shaft (31), a A pull-off part (10 in three sentences is formed between the β shaft (31) and the engaging part ⑺), _hook connecting part ⑻) is formed on the outer periphery of the engaging part (33), and an abutting part (36) is located in the The front end of the shaft (31), a push-pull part (37) is provided at the rear end for pushing and pulling of fingers, and a detachment part (38) can abut against the push-rod retaining edge (18) of the syringe (10). A stopper group (40) is formed by injection molding of plastic material PE (polyol, polyethylene 15), and has a stopper body (41) which is conical disc shape and can be slightly elastically deformed, and a stop edge ( 42) is formed on the outer periphery of the plug body (41) and can pass forward and be locked on the locking portion (15) of the syringe (10); in this embodiment, the locking edge (42) is just right The receiving hole (12) of the syringe (10) is sealed, a clip (43) is connected to the plug body (41) corresponding to the direction of the push rod (30), and a clip hole (44) is formed at 20 In the latching member (43), a hooking portion (45) is formed in the latching hole (44), and can be hooked with the hooking portion (35) of the push rod (30), and an abutting portion (46 ) Can be abutted against the abutment (36) of the putter (30), and an extension rod (47) is connected at the front end. In addition, the stopper group (40) further has a balance cylinder (48) connected to the plug body (41) in a ring cylinder shape, and can be elastically retracted to extend backward, and is connected to the balance cylinder (48) -6- M244915 A new type of instruction manual "Selling stomach" forms a balance abutment edge (481) against the wall of the receiving hole (12) of the syringe (10), and the balance abutment edge (481) can also serve as a seal; and A ring groove (49) is formed inside the plug body (41), so that the plug body (41) is more conveniently elastically deformed when the plug body is pushed forward. 5 The operation of this embodiment is described as follows: When it is pushed forward, as shown in the third figure, the push rod (30) is pushed forward so that its abutment (36) is pushed against the stopper. The blocking portion (46) of the group (40), the locking edge (42) of the stopper group (40) is forced to reach the locking portion (15) of the syringe (10), and passes through slightly elastically deformed; In the process, the leveling balance (481) of the stopper group (40) of the balance cylinder (48) is abutted against the wall of the accommodation hole (12) of the syringe (10), and can be remotely stopped. The Mori group (40) is in balance; then, as shown in the fourth figure, the pusher (30) is pushed to the bottom to press the plug body (41) of the stopper group (40) against the syringe (1〇). ), It can inject the medicinal solution. In the backward pull operation, as shown in the fifth figure, the push rod (30) pulls back 15 to drive the stopper group (40) to move, so that the stopper edge (42) of the stopper group (40) ) Will abut against the locking portion (15) of the syringe (10), so that the stopper group (40) can no longer be displaced; at this time, if you continue to pull the push rod (30) with force, it will merge and ( 34) disconnection, so that the push rod (30) can be pulled back, and the push rod ⑽ is disconnected; the catch (33) and the stopper group (40) are still locked in the capacity of the syringe (1〇) Set hole 20 (12) as shown in Figure ^. Therefore, 'the syringe is now in a state of self-destruction as it is called in the industry, and can no longer be used repeatedly and is safe. In addition, since the stopper group (40) adopts a single piece and can be demoulded in the axial direction, the parting line formed in the vertical will not affect the locking edge (42) and the accommodation of the syringe M244915 The hole (12) is sealed, so no rubber plug can be used. The production cost of the components of this creation can be greatly reduced, and it has the function of self-plating ', so it is expected to replace the traditional syringe market. In addition to the above embodiments, this creation can also be implemented as follows: 5 In addition to the above embodiments, the balance tube system of the stopper set described above can also have various other structures, as shown in the seventh figure, where the balance tube It consists of multiple pieces of balance plate (48A) arranged equally. Also in this creation, the putter and stopper group can also be designed as follows: As shown in the eighth figure, the putter also has a card turning portion (39A), which is composed of a ten-point convex strip (391). In addition, the stopper group also has a card turning section (46A), which is formed by combining several card slots (461). 'The stopper section (46A) of the stopper group can be connected with the putter. The engaging portion (39A) can prevent the relative axial rotation between the push rod and the stopper group, so that the pull-off portion (34) of the push rod does not cause torsional fracture due to rotation. 15 In addition, as shown in the ninth figure, the stopper group may further have a rubber plug (50) installed at the front end of the ▲ body to provide a sealing effect with respect to the accommodation hole of the syringe; or, It can be installed at the rear end of the plug body (not shown). Furthermore, as shown in the tenth figure, the plug body (41A) of this stopper set can also be a flat disc-shaped design. 20 And, as shown in the eleventh figure, the locking members (43A) of the stopper group are a number of claw pieces which can be elastically bent and deformed, and the hooking portion (45A) is formed as an inverted hook on each of them. Clip (43A). Alternatively, as shown in the twelfth figure, the latching piece (33B) of the push rod and the latching piece (43B) of the stopper group are interchangeable with the structure in the previous embodiment, and the pusher-8-M244915 The new type manual $ Sale page lever can be pulled and separated from the main body of the stopper group by pulling the catch (43B) of the stopper group. According to the above embodiments, the characteristics of this creation can be summarized as follows: 1. The self-destructing syringe of this creation can keep the stopper group 5 locked inside the syringe after injection, and can prevent repeated use. 2. The self-destructive syringe of this creation has simple stopper assembly and push rod assembly and separation structure, simple components, low manufacturing cost, and convenient operation. 3. The self-destructive syringe of this creation can balance the sliding between the stopper group and the 10-hole of the syringe. 4. In the self-destructive syringe of this creation, the pusher and the stopper of the stopper group can be locked to each other, so that the pull-off part of the pusher will not be twisted and broken due to rotation. -9- M244915 New Manual Continuation Sheet [Simplified Description of the Drawings] The first drawing is a combined sectional view of a preferred embodiment of this creation. The second figure is a plan exploded view of a preferred embodiment of the present invention. The third diagram is an operation state diagram of a preferred embodiment of the present invention, showing a state in which the 5 stopper group is forced against the locking portion of the syringe. The fourth diagram is another operation diagram of a preferred embodiment of the present invention, showing a state in which the push rod pushes the stopper group to the end. The fifth diagram is another operation diagram of a preferred embodiment of the present invention, showing the state where the push rod is slightly pulled back to the interlocking stopper group. 10 The sixth diagram is a schematic diagram of another operation of a preferred embodiment of the present invention, showing a state where the pull-off portion of the push rod is disconnected. The seventh picture is a perspective view of another stopper group. The eighth picture is an exploded perspective view of another putter and stopper set. The ninth picture is a combined picture of a stopper set in this creation. 15 The tenth figure is a cross-sectional view of another stopper group in this creation, showing that the plug body has a flat disc-shaped structure. The eleventh figure is a cross-sectional view of a stopper group in this creation, showing the structure in which the clamping member is formed with a plurality of claws. The twelfth figure is a schematic plan exploded view of the putter and the stopper set of this creation. 20 shows the state where the two latching structures are interchanged. M244915 New instruction manual ft stomach 5 10 15 20 [Mainly representative symbols] Needle (N) Syringe (10) Body (11) Receiving hole (12) Thrust part (13) Locking part (15) Push rod retaining edge (18) Push rod (30) Needle connector (16) Hand-held ear (17) Shaft (31) Clip (33) (33B) Pull-off section (34) Hook-connect section (35) Abutment section (36) Push-pull section (37) Stop-release section (38) Locking section (39A) Stopper group (40) Convex strip (391) Plug body (41) (41A) Locking edge (42) Clip-on member (43) (43A ) (43B) Hooking part (45) (45A) Clamping hole (44) Abutment part (46) Extension rod (47) Clamping part (46 A) Card slot (461) Balance tube (48) Ring slot (49 ) Rubber stopper (50) Balance piece (48A) Balance abutment edge (481) -11-