M261223 八、新型說明： 【新型所屬之技術領域】 本創作係關於-種可回拉針頭至針筒内部之 指-種設有可受力壓縮與回復、具有彈、^射益，尤 該可伸縮之彈性活塞可被推至接觸針筒注射空射器， 於注射後回拉針頭時，幫助針頭_ 内壁，且可 結合之動作可於病患體外完成，不會增加病自之針頭與柱塞. 種回拉式安全注射器之結構者。 〜$古，適用於各 【先前技術】 常二:Γ=之注射器或針筒已廣泛應用於醫懈 醫雜&Γ、、μ中的針頭亦會札傷他人；對於處理 ’也可能是廢棄針頭之受害者，是故遂有 使針裔之產生，可將使用過後之針頭拉回至針筒内， 針頭滅於針_，並且減少注射ϋ之體積。 成回拉式文全注射器如第11圖所示，一針筒Α前端形 包人二#座A卜該針頭插座A1可供—針頭B _，該針頭β 各―底料有第-喻接部Β2之針座β1，而一包含推桿π及活 - „4之柱基C可由針筒A之後方推入，該活塞C2頂面設有一第 ^ΡΪ部為避免第一喻接部B2與第二喻接部C3在注射器未 #别無意之結合，通常兩者之間會預留一空隙d，而在藥劑施 7之末段過程中，需再以一力量前推推桿α，使第-喻接部B2 5 M261223 與第二喻接部C3結合，故推桿cu 可被拉進簡A内，可安全 4龍之針頭β即 簧回拉機構以及啟動襄置之針體自動:縮式安有!， 完畢之後，施力於啟動裝置，1 叮 /射态，富注射 Γ至料f靖料避免轉. 曰’表主射器推桿前端與針頭之間仍留有—空隙，^、、、。 树Γ誤差量:因此上述之注射器仍有以下之缺點：· ’其絲伽與針筒峰_留一、 μ 免—_部在使用前無意結合，铁而此_門_ 造成醫護人員在抽取藥劑時抽取量不準確。、u 2. 動回拉式之注射器，在注射之末段 力量於推桿，需施加一相當之 終有==產=善上述之問題，本案之創作人乃深入研究， 【新型内容】 鲁 ，之活塞之回種：可受力壓縮與回復、具有 針筒内部，操作簡便、使可^或半自動地回拉針頭至 自動回拉式注射器。力’亚適合使用於預設回拉機構之 觸到二?在提供—種注射時可讓活塞頂面推到底碰 回之回拉式安全注射器，而且尚未啟動 1林者於使用w精準地從針筒之零刻度開始吸取 6 M261223 藥劑，達到良好的藥劑量控制。 本J]作之再一目的在提供—種活夷 頂端内壁’在針座以及活塞 瓣二，射空間 藥劑完全注射出去；使可於 =件尚未結合時，即可將 將注射針㈣之^者餅施力， 拉動作增加被注射者之痛楚感。〇拉式文全注射器，以避免回 為達到上述之創作目的，本士 · 包含有-針頭、一針筒以及一柱塞，其=回拉式安全注射器 喻接部，針筒上方形成—針頭插】ς δχ相底部設有一第-. 係以一預定結合力結合於針頭插座上下一注射空間，針頭^ 於針筒内之注射空間，其中該』= 間，域成可容易受视缩及回復之形狀。材貝具有一中空容 可使活基擠虔 在此狀況結合，㈣接·，部尚未 時，第二與輸塞之頂面 被拉回至針筒内部者。 D而使針頭可脫離針頭插座 又本創作提供數種且髀音& 狀與構造，使紐夷可A y U不可貫施之活塞之各種形 針筒之固定結合力壓縮回彈之回復力可克服針頭與 可實施之例子。對於活基前端之第二_部，亦提供數種 炫it具體實施例詳述於 後 為便於對糊魏妓深人的瞭解， 7 M261223 【貫施方式】 請參閱第卜2及2A圖，本創作之 針頭40、一針筒50以及—柱塞6〇， 拉心全注射器包含— 針體41與一供針體41固定之針座、:針碩40至少包含有— 接部43,由至少—個掣棘43 二針座42底部設-第1 例，該擎棘43 -端固設於針接部細接部之一實施 上方呈開口縮小之倒鉤狀，寧棘奶之^壁面’ 一端^空朝向 以及針體41連通，形成藥劑通道。、礼中工’與針座42. 50 52, . 一可伸縮具有彈性之活塞61套&==6中3央=塞柱63, ==二612 ’且設成可容易受力 係與活塞61頂面錐狀之鉤部64，該鉤部64之底部 圓錐^圖所7F ’該活塞61之—實施例係兩相對置之 密貼：，當醫生戍=’彈性體之圓周邊緣與咖内壁緊' 部64尚未結合（請來第 ，弟_43與弟二啣接 劑。在注射藥劑時，將ϋ 5 從針筒之零刻度開始吸取藥 直到活宾TfMn觸于往前推向注射空間之内壁頂部52卜 推出針ί 50外，卜與士注射空間之内壁頂部521相接觸’藥劑皆被 ^ ^ _ ，此時第—啣接部43與第二啣接部64尚未結合。 &成後’可將注射針頭40移出被注射者的體外，再以一力 8 M261223 I將推桿62往前推進，使彈性壓縮之活塞6 同時第一卸接部43與第二吻接部64結合 壓變形’ 示，者釋放力曇徭，、、*堂以 币0圖及第3A圖所 不田釋放力里後，活基61之回復力可幫助 插座5丨之結合力量’因此該回復力將幫助針頭4;=: 回拉，此時注射者只要輕輕將推桿62往後拉出，即可 針頭40回拉使元全隱藏在針筒5〇之注射空間於中，〃： 示’使廢棄之針頭不外露於針筒外，達到安全針筒之作 =4圖所 活塞之構造形態除了第丨圖所表示者之外，亦可 少兩個圓盤狀之彈性體堆疊之活塞61a，如第5圖及第示； 亦可設計成-中間纖之柱狀彈性體之活塞61b，如第6圖及第 6A圖所示；或是設計成表面為螺紋之柱狀體之活塞他，如第7 圖及f 7A圖所示’·當離輸似之柱狀體或其他形體所構成之活 塞形態’只要具有活塞被壓縮後可回彈之性質，該活塞之回復力 可克服針頭與針頭插座之固定力者，皆應視為不脫離^創作精神 之範疇。 此外，除前述之鉤部64為突出於活塞61頂面之設計外，亦 可配合製造或使狀需求*有不聽置之設置，討達到前推推 桿62而使鉤部64與第一啣接部43之目的，如第8、9圖所示， 該鉤部64前端部份係突出於活塞61頂面，而鉤部料其餘部份則 容置於活塞61内部之中空容間612中，或是賴部64完全容置 於活塞61内部之中空容間612中（即被活塞所包覆），使當施加一 力莖使活塞擠壓變形後，鉤部64可向上穿出活塞並遠離活塞之頂 面，而與第一啣接部43結合。故無論鉤部64之位置為完全裸露 於活塞61外(如第2圖所示）、部份裸露於活塞61外(如第8Α圖所 M261223 二)或是7L全包覆於活塞内(如第9A圖所示），一旦施加一力 基擠屋變形後，鉤部64皆可向上穿出活塞61並遠離活塞^之頂 面，而與第一啣接部43順利結合。 、 貫施時，本創作之可_與回復之彈性活塞裝置，亦適用於· 頭回拉機構以及啟動裝置之自動回拉式安全針筒（未示 中），其作用如下：當活塞被推人之注射空間，直至活塞 =面，射空間之内側頂面接觸時，啟動裝置尚未啟動回拉‘ 1盖=加—力量使活塞漏變形，始可觸發啟動裝置，使回拉. 機構動作，而使針頭被預設之回復力拉回至針筒内部。 《 施例ΐί各計之可能實 =用亦可互換’同樣可達频效果，凡為此領 器第一轉部與第二健部之圍本創作之回拉式安全注射 44(Α^ϋ 圖’本創作之針頭41更可包含—轉接頭 41與針座42係可拆卸地結合^ ==注射广可更換針體…= Ρ」弟1G圖僅疋針體與針座可旋 ， 半自動回拉:安:：合方式之針頭與針體皆可應用於本創作之 M261223 器 本創作所揭示之結構可應用於醫療領域之各種回拉式注射 並具有以下之優點： 本創作之回拉式安全注射器之活塞受力回彈之回復力可克服 針頭與針筒之結合力，使注射針筒之操作者可半自動省力地將 注射針頭往注射器内部拉回。 2. 3· 本創作之帥式安全注射器適於在注射液全部推出針筒後，將 針頭拔出病患體外，再將柱塞及針頭予以結合，避免回拉之喻 接動作所另外施加之力量造成病患之痛楚或不舒服。 4. 頭與柱塞結合須施加—相當力量，此力量之可 使用别或運輸過程中不當之結合，造成注射器之失效。 本創作之_式安全注射器尚未注樹，活塞細可推碰 主射空間之内壁頂ΐ ’使針筒於充分的排氣，或精準 攸’ η之糊度開贿取藥劑，達到良好的軸量控 式安=，=Γ達到創作咖 值，纽單、使物，_業利用之價 【圖式簡單說明】 創作實施例之回拉式安全注射器之立體示意圖。 弟2圖係為本創作實施例之 ‘㈡ 第2Α圖係第2圖之回拉式安全注；;之主知之剖面示意圖。 第2β圖係本創翻拉式安全注射器之活」微大不意圖。 内壁頂部接觸，活塞尚夫:'基頂面與針筒注射空間之 第_為係為本創作實施例之:拉：:放:::圖。 與第二鱗部結合之剖面示意圖^王趟益之弟一喻接部 M261223 第3A圖係第3圖之回拉式安全注射器之巧立 第4圖係為本創作實施例之回拉式安4 】面不思圖。 器針筒内之剖意圖。 ”之針碩被拉進注射 第5圖係為本創作實施例之回拉式安 疊成之活塞之剖面示意圖。 為之圓盤狀彈性體堆 第5A圖係第5圖之回拉式安全注射器 第6 _為補作實侧之錄式安全、、絲卩私相示意圖。. 之剖面示意圖。 /射益之中間頸縮之活塞 圖之回拉式安全注射器之局部放大剖面示音圖。· 第7圖係為本創作實施例之回拉式安全 " 塞之剖面示意圖。 ’射盗之表面具螺紋之活 第7A圖係第7圖之回拉式安全注射器之 第8圖係為本創作實施例之回拉式安全、、主射„ 1面不思圖。 出於活塞頂面之剖面示賴。/如之錦部前端部份突 第8A圖係第8圖之回拉式安全注射器之局 第9圖伤在盔士石丨认6 F放大剖面示意圖0 圖_林解錢狀回減好 於活塞内部之剖面示意圖。 ^之鉤心全今置^ 第第==^_恤咖之㈣大剖面示意圖。 弟1〇圖係為本創作實施例之 ★轉結合之組合方式之剖面示_料狀針體與針座以旋 第10A圖係第1〇圖之回拉式安全注射器 — % 11 isi ^ ^ ^ 4： 。°局邛放大剖面示意圖。 弟11圖料壯之回拉式安全注能之剖 【主要元件符號說明】 y® 12 M261223 40 :針頭 41 :針體 43 :掣棘（第一啣接部） 50 :針筒 51 :針頭插座 521 :注射空間之内壁頂部 60 :柱塞 61，61a，61b，61c :活塞 63 :活塞柱 65 :彈簧裝置 612 :中空容間 42 :針座 44 :轉接頭 52 :注射空間 62 :推桿 64 :鉤部（第二啣接部） 611 :活塞頂面 13M261223 8. Explanation of the new model: [Technical field to which the new model belongs] This creation is about-a kind of finger that can pull back the needle to the inside of the syringe-a kind that can be compressed and restored with force, has a spring, and a shot benefit, especially should be The retractable elastic piston can be pushed to the contact syringe injection air ejector. When the needle is pulled back after the injection, it helps the needle _ inside wall, and the combined action can be completed outside the patient's body, without increasing the needle and column of the disease. Stopper. Structure of a pull-back safety syringe. ~ $ 古, applicable to each [prior art] Often two: syringes or syringes of Γ = have been widely used in medical doctors & Γ ,, μ needles will also hurt others; for processing 'may also be Victims of abandoning needles have caused the generation of needles. The needles can be pulled back into the syringe after use, the needles are destroyed by the needle, and the volume of the injection can be reduced. As shown in Figure 11, a pull-back full-text syringe is shown in the figure. A syringe A is front-shaped and packs two people. The seat A1 is available for the needle-needle B _. The needles β each have a base material. The needle seat β1 of the part B2, and a post base C including a push rod π and a movable-"4 can be pushed in behind the syringe A. The top surface of the piston C2 is provided with a first ^ P ^ part to avoid the first metaphor B2 In combination with the second metaphor C3, the syringe is not intentionally connected. Generally, a gap d is reserved between the two. During the final stage of the medicament application 7, the pusher α needs to be pushed forward with a force. The first-meta joint B2 5 M261223 is combined with the second meta-joint C3, so the pusher cu can be pulled into the Jane A, which can safely secure the 4 needles of the dragon β, namely the spring-return mechanism, and automatically start the needle body. : Shrink-type safety! After finishing, apply force to the starting device, 1 bit / shot state, rich injection Γ to material f, to avoid rotation. Say, 'there is still a gap between the front end of the pusher of the table and the needle— Gap, ^ ,,, .. Tree Γ error amount: Therefore, the above-mentioned syringe still has the following disadvantages: · 'its silk and syringe peak _ leave one, μ free — _ Department unintentionally combined before use, iron and this _ _ It causes the medical staff to take inaccurate amount when taking the medicine. U 2. The pull-back syringe is driven at the end of the injection by the push rod, and a considerable amount of time must be applied == PRODUCT = good above problems, The creators of this case are in-depth research. [New content] Lu, the return of the piston: it can be compressed and restored under pressure, has a syringe inside, and is easy to operate, so that the needle can be pulled back to the automatic pull-back syringe semi-automatically. 。Li'ya is suitable for use in the preset pull-back mechanism of the touch two? When providing-a kind of injection can allow the top surface of the piston to push back to the end of the pull-back safety syringe, and has not yet activated 1 6 M261223 medicament was sucked from the zero scale of the syringe to achieve good drug dose control. The purpose of this article is to provide-a kind of movable top inner wall 'in the needle seat and the piston valve, the injection of the medicament is completely injected. So that when the pieces have not been combined, the injection needle can be used to force the cake, the pulling action increases the pain of the person being injected. 〇 pull-type full syringe to avoid returning to achieve the above-mentioned creative purpose ,this The taxi includes a needle, a syringe, and a plunger, which is a pull-back safety syringe, which is formed above the syringe—the needle is inserted]. The bottom of the δχ phase is provided with a first-. It is combined with a predetermined binding force The next injection space on the needle socket, the injection space of the needle ^ in the syringe, where the ″ = space, the shape is easy to be visually contracted and restored. The material has a hollow volume, which can squeeze the living base here. Combined with the situation, when the connection is not finished, the top surface of the second and the plug is pulled back to the inside of the syringe. D, so that the needle can be separated from the needle socket, this creation provides several kinds of sounds and structures The compressive rebound force of compression and rebound of the various shaped syringes that make Niyco A y U inconsistent piston can overcome the needle and the example that can be implemented. For the second part of the front end of the living base, several specific examples of it are also provided in detail. To facilitate the deep understanding of prostitutes, 7 M261223 [Method of implementation] Please refer to Figures 2 and 2A. The needle 40, a syringe 50, and a plunger 60 of this creation, a pulling full syringe includes a needle body 41 and a needle holder for fixing the needle body 41. The needle master 40 at least includes a connector 43 At least one pawl 43 is provided at the bottom of the two needle seat 42-the first example, the engine 43 is fixed at one end of the pin connection part to implement a barbed shape with a narrowed opening at the top. 'One end is open and the needle body 41 communicates to form a medicine channel. 、 Li Zhonggong 'and needle holder 42. 50 52,. 61 sets of retractable and elastic pistons & == 6 中 3 央 = plug column 63, == 二 612', and is set to be easily stressed The top surface of the piston 61 is a cone-shaped hook portion 64, and the bottom portion of the hook portion 64 is conical. Figure 7F 'The piston 61-the embodiment is two closely-located close to each other: when the doctor 戍 =' the peripheral edge of the elastomer and The inner wall of the coffee cup's tight part 64 has not yet been combined (please come, No. _43 and No. 2 linker. When injecting the medicine, draw ϋ 5 from the zero mark of the syringe until the live TfMn touches forward. The top of the inner wall of the injection space 52 pushes out the needle 50, and the medicament is in contact with the top of the inner wall 521 of the injection space. The medicaments are all ^ _ _. At this time, the first joint 43 and the second joint 64 are not yet combined. & After completion ', the injection needle 40 can be removed from the body of the person to be injected, and the push rod 62 can be advanced forward with a force of 8 M261223 I, so that the elastically compressed piston 6 and the first unloading portion 43 and the second kiss The combination of the compression deformation of the part 64 shows that after the release force is released, the restoring force of the living base 61 can help The combined force of seat 5 丨 'so the restoring force will help the needle 4; =: pull back, at this time the injector only needs to pull the push rod 62 back slightly, and the needle 40 can be pulled back to hide the whole part in the syringe The injection space of 50 is in the middle. 〃: It means that the discarded needle is not exposed outside the syringe to achieve the safety of the syringe. The structure of the piston shown in Figure 4 can be less than the one shown in Figure 丨. Piston 61a with two disc-shaped elastomers stacked, as shown in Figure 5 and Figure 1; also designed as-Piston 61b with intermediate fiber cylindrical elastomer, as shown in Figures 6 and 6A; or A piston designed as a cylindrical body with a thread on the surface, as shown in Figure 7 and f 7A, "· When the piston is formed by a cylindrical body or other shape like a piston", as long as the piston is compressed, it can be returned. The nature of the bomb, the restoring force of the piston can overcome the fixing force of the needle and the needle socket should be regarded as not departing from the spirit of creative spirit. In addition, in addition to the aforementioned design of the hook portion 64 protruding from the top surface of the piston 61 , Also can be made in accordance with the requirements of manufacturing or making * there are no listening settings, to reach the front putter 62 and make The purpose of the portion 64 and the first connecting portion 43 is shown in FIGS. 8 and 9. The front end portion of the hook portion 64 protrudes from the top surface of the piston 61, and the rest of the hook material is contained inside the piston 61. The hollow space 612 or the lying part 64 is completely contained in the internal space 61 of the piston 61 (ie, it is covered by the piston), so that when a force is applied to the piston to deform the piston, the hook 64 It can be pushed out of the piston and away from the top surface of the piston, and it is combined with the first connecting portion 43. Therefore, regardless of the position of the hook portion 64, it is completely exposed outside the piston 61 (as shown in Fig. 2) and partially exposed in the piston. 61 outside (as shown in Figure 8A M261223 2) or 7L is completely enclosed in the piston (as shown in Figure 9A). Once a force is applied to squeeze the house to deform, the hook portion 64 can penetrate the piston 61 upward and It is far from the top surface of the piston ^, and is smoothly combined with the first connecting portion 43. During the implementation, the flexible piston device of this creation can also be applied to the automatic pull-back safety syringe (not shown) of the head pull mechanism and the starting device. Its role is as follows: When the piston is pushed The injection space of the human is until the piston = face, when the inner top surface of the injection space is in contact, the starting device has not yet started to pull back. 1 cover = plus—the force deforms the piston, and the starting device can be triggered to make the pull back. Mechanism action, The needle is pulled back to the inside of the syringe with a preset restoring force. << Example ΐ The possible implementation of each measure = use can also be interchanged 'the same reachable frequency effect, whoever created the pull-back safety injection 44 (Α ^ ϋ Figure 'The needle 41 of this creation can also include-the adapter 41 and the needle holder 42 are detachably combined ^ == injection wide replaceable needle body ... = PD "Brother 1G only the needle body and needle holder can be rotated, The semi-automatic pullback: Ann :: combined needle and needle body can be applied to the M261223 device in this creation. The structure disclosed in this creation can be applied to various pull-back injections in the medical field and has the following advantages: The resilience of the piston of the pull-type safety syringe can be overcome by the rebound force of the needle and the syringe, so that the operator of the syringe can pull the injection needle back into the syringe semi-automatically and laborlessly. 2. 3 · The handsome safety syringe is suitable for pulling the needle out of the patient's body after the injection solution has been completely pushed out of the syringe, and then combining the plunger and the needle to avoid the pain caused by the additional force exerted by the metaphoric pull back action. Uncomfortable 4. Combination of head and plunger must be applied-phase When the force is used, the use of this force or the improper combination during transportation will cause the syringe to fail. The _ type safety syringe of this creation has not yet been injected with a tree, and the piston can push against the inner wall of the main shooting space. Sufficient exhaust, or preciseness of η's degree of bribery to obtain medicine, to achieve a good axis-quantity control type =, = Γ to achieve creative value, new bills, envoys, _ industry use price [Schematic simple Explanation] The three-dimensional schematic diagram of the pull-back safety syringe of the creative embodiment. Figure 2 is a drawing of the '实施 Figure 2A of the creative embodiment of the pull-back safety note of Figure 2; the cross-sectional schematic diagram of the main known. 2β The picture shows the life of the original pull-out safety syringe. ”It ’s slightly unintentional. The top of the inner wall is in contact with the piston. The piston _: The top of the base surface and the injection space of the syringe is the embodiment of this creative example: 拉 :: 放: :: Figure. Schematic cross-section combined with the second scale part ^ Wang Tangyi's younger brother Yuyu M261223 Figure 3A is the retractable safety syringe of Figure 3 Figure 4 is the example of this creative example Pull back type 4] No picture on the surface. The intention of section inside the syringe. Figure 5 is a cross-sectional view of a piston that is pulled back and assembled by the embodiment of the creative example. The disk-shaped elastomer stack is shown in Figure 5A and the pull-back safety syringe in Figure 5 is shown in Figure 6 _It is a supplementary diagram of the recording type of the safety side and the private side of the wire .. The cross-sectional view of the diagram. This is a cross-sectional schematic diagram of the pull-back safety " plug of this creative embodiment. 'The surface of the shooting thief is threaded. Figure 7A is the seventh drawing of the pull-back safety syringe. The pull-back safety, main shot „1 side is not shown. This is due to the cross-section of the top surface of the piston. / The front part of the brocade part is protruding. Figure 8A is the situation of the pull-back safety syringe in Figure 8. Fig. 9 Injured in Helmet Stone 丨 6 F enlarged cross-section schematic diagram 0 Fig. _ Lin Jie's cross-section diagram is better than the inside of the piston. ^ 之 心心 全 今 置 ^ 第 == ^ _ Schematic diagram of the large section of the shirt coffee. Figure 10 is a cross-sectional view of the combined method of turning and combining in this creative embodiment. ________ Material needle body and needle seat are rotated. Figure 10A is the pull-back safety syringe of Figure 10—% 11 isi ^ ^ ^ 4:. ° Enlarged cross-section diagram. Figure 11 Section of Zhuang's Pull-back Safety Injection Energy [Description of Main Component Symbols] y® 12 M261223 40: Needle 41: Needle Body 43: Detent (First Joint) 50: Syringe 51: Needle Socket 521: Top of the inner wall of the injection space 60: Plunger 61, 61a, 61b, 61c: Piston 63: Piston rod 65: Spring device 612: Hollow space 42: Needle seat 44: Adapter 52: Injection space 62: Push rod 64: hook portion (second connecting portion) 611: piston top surface 13