财:24956 五、新型說明： 【新型所屬之技術領域】 本創作係有關一種回拉式安全 式針頭之結合構造，可有效穩_ === 縻用οσ之主射針筒或類似結構者。 菌 【先前技術】Wealth: 24956 V. New Description: [New Technology Field] This creation is about a combination of a pull-back safety needle that can be effectively stabilized _ === 主 之 之 主 主 或 或 or similar structure. Bacterium
域，】注射器或針筒已廣泛應用於醫療領 :病:用後即去，既方便衛生又可避免 傳染’然而廢棄之注射器暴露在外的針頭一不小 如果沒有妥善處理，隨意棄置傳 他人；對於處理醫療廢棄物r;朗制亦會札傷 典宜I β一 保人貝’也可能是廢棄針頭之 式安全注射器之產生，可將使用過後之 十頭拉回續肋，使針賴於針制，並且減纽射器 槓。 淮回拉式安全注射器其針頭與針筒結 :，因為製造之公差問題，有時針頭不易插入結合於針= 有時針頭插置於前财又域弛，僅靠針頭針座上所設之 凸緣卡抵於針筒的前端内壁，不容易穩固。此外，安全注射器 如果沒有-阻擋機制，避免使用前或運輸過程 ^ 不當結合，將纽姐㈣之失效。 有鏗於此’本創作者乃致力於改良，期能提供一種令回拉 式針頭與針筒結合之改良結構。 3 【新型内容】 本創作之主要目的在提供 種結構簡單、可有效穩固支撐 回拉式安全針 =且於執絲賤⑽ 括4=:=設之種回拉式安全針筒，包 座’該針座係包括-上針座应1 具有一針體及-針 於上，而下針座係活動+人;;下針座，該上針座供針體固定 —銜接部；該似—上針釘方，讀絲部則設有 以供針頭插Lf空筒體’其前端形成為針頭插座， 又:= 針頭之針座可容納於該針頭插座内， 錢有—抵靠部，供針頭之針座抵靠於上；該 =1= 推進於針勒，雜塞之前端鮮一活塞， 二二:p可與上針座底部銜接部銜接之結合部，藉以使 1、凡畢後，施加-力量使活塞擠壓變形至結合部與銜接部結 己，而使針職離針輸座與婦部錄回至針筒内部。 土實施時’該柱塞設有-徑、縮部，使該柱塞之徑縮部回拉至 罪近針筒末端時，可被施力而將該柱塞折斷成兩截。 實施時，該上針座與下針錢_設有可轉卡合之 部。 實施時，該下針座设有供容置上針座之銜接部之容置空 間。 為進一步了解本創作，以下舉較佳之實施例，配合圖示、 圖唬’將本創作之具體構成内容及其所達成的功效詳細說明如 后： 【實施方式】 實二創作回拉式安全針筒之-該針頭i係具有-針體二^塞:：成。 定於上座122，該上針座m供針體11固 ιΓζ*與下触122舞應対可相對卡合 二部則設有一銜接部125，該下針織: 有供合置上針座121之銜接部125之容置空間126。 以供係為—中空筒體，其前端形成為針頭插座21， 插座21内 合，使該針頭1之針座12可容納於該針頭 =:，針頭插座21内壁設有一抵靠部22，供針頭1 之針座12抵靠於上。 ，,1 ==由· 2下方綠_㈣柱塞 ^塞31結合有，上針座⑵底部銜 =125銜接之結合部32，該結合部32係為一突出之釣部。 ㈣該ί塞3設有一徑縮部33，使可被施力而將該柱塞3折 斷成兩截。 實施時，當上雌121與下針座122依序自簡2後端置 入於針頭插座21内後，當越過針頭插座21内壁之抵靠部^ 透過上針座121與下触122職設有可姆卡合之棘部 、124，使下針座122可活動卡合於上針座121下方而組成 1 十座12 ’且該針頭！之針座12可藉由針頭插座21内壁之 抵罪部22而穩固結合於針頭插座21内，並使於抽藥及注射 過程中均形成密封狀。 因此’當注軸作完紐，可施加-力量使活塞31麵 戰z斗y% =至結合部32穿過下触121 與上針座122之銜接部125 、’合’當回拉該柱塞3後’該柱塞3前端活塞31之結合部犯 即可2動雜接部125轉上針座122連同下針座122下拉脫 離抵罪部22之撐持，而使針頭1脫離針雜座21與抵靠部 f而被拉回至針冑2内部，而當該柱塞3之徑縮部33回拉至 罪近針筒2末端時’可被施力而將該柱塞3折斷成兩截，可再 回收處理’有效減少廢料產生與降低成本。 ^以上所述乃是本創作之具體實施例及所運用之技術手 段，根據本文的揭露或教導可衍生推導出許多的變更與修正， 若依本創作之構想所狀等效改變，其所產生之_仍未超出 說明書及圖式所涵蓋之實質精神時，均應視為在本創作之技術 範疇之内，合先陳明。 ^依上文所揭示之内容’本創作確可達到創作之預期目的， 提供-種_式安全針筒’具有產業_與實用之價值無疑， 爰依法提出新型專利申請。 【圖式簡單說明】 第1圖係為本創作實施例中針座組合前之狀態示意圖。 第2圖係為本創作實施例t針座組合後之狀態示意圖。 第3圖係為本創作實施财柱塞叙針筒前之狀態示意圖。 第4圖料本_實細巾結合部與下針紅織部結合後 之狀態示意圖。 第5圖係為本創作實施例中回拉桎塞後之狀態示意圖。 【主要元件符號說明】 1 :針頭 6 M4.24956 11 :針體 12 :針座 121 :上針座 122 :下針座 123 :棘部 124 :棘部 125 :銜接部 • 126:容置空間 2 :針筒 21 :針頭插座 22 :抵靠部 3 :柱塞 31 :活塞 32 :結合部 • 33 :徑縮部 7Domain,] syringes or syringes have been widely used in medical collars: disease: go after use, it is convenient for hygiene and can avoid infection. However, the needles exposed by the discarded syringes are not small, if not properly handled, they are discarded at will; For the treatment of medical waste r; the lang system will also be a good example of the safety syringe of the discarded needle. It can be used to pull back the ribs after use, so that the needle depends on Needle, and reduce the bumper bar. Huai pull-type safety syringe with needle and needle knot: Because of the manufacturing tolerance problem, sometimes the needle is not easy to insert and bond to the needle = sometimes the needle is inserted in the front and the field is relaxed, only the needle seat is set. The flange card is abutted against the inner wall of the front end of the barrel and is not easily stabilized. In addition, if there is no-blocking mechanism for safety syringes, avoid the use of pre-use or transportation process ^ improper combination, will invalidate the new sister (four). There is something about this. The creator is working on improvement to provide an improved structure that combines a pull-back needle with a syringe. 3 [New content] The main purpose of this creation is to provide a kind of pull-back safety needle with simple structure, which can effectively support the pull-back safety needle=and the silk thread (10) including 4=:= The needle holder includes: the upper needle seat 1 has a needle body and a needle on the upper side, and the lower needle seat is movable + a person; the lower needle seat is provided for the needle body to be fixed - the joint portion; the like The upper part of the needle is arranged, the reading part is provided for inserting the needle into the Lf empty cylinder, the front end of which is formed as a needle socket, and the needle holder of the needle can be accommodated in the needle socket, and the money has an abutment portion for The needle seat of the needle abuts against the top; the =1= pushes the needle, the piston is fresh at the front end of the plug, and the joint of the second and the second can be connected with the bottom joint of the upper needle seat, so that The application-force causes the piston to be squeezed and deformed to the joint portion and the joint portion, and the needle is displaced from the needle and the woman to the inside of the syringe. When the soil is applied, the plunger is provided with a diameter and a constricted portion, and when the squeezing portion of the plunger is pulled back to the end of the syringe, the plunger can be biased to be broken into two pieces. When implemented, the upper needle seat and the lower needle money _ are provided with a reversible engagement portion. In practice, the lower needle hub is provided with a receiving space for receiving the adapter portion of the needle hub. In order to further understand the present invention, the following preferred embodiments, together with the illustrations, and the drawings, detail the specific components of the creation and the functions achieved by the following: [Embodiment] Real two creation pull-back safety needle The tube - the needle i has a - needle body 2:: into. The upper needle seat m is provided for the needle body 11 to fix the movement of the needle body 11 and the lower contact 122, and the opposite portion of the needle portion is provided with an engaging portion 125 for the lower needle holder 121. The accommodating portion 125 accommodates the space 126. The hollow cylinder is formed as a hollow cylinder, and the front end thereof is formed as a needle socket 21, and the socket 21 is fitted therein, so that the needle holder 12 of the needle 1 can be accommodated in the needle=:, the inner wall of the needle socket 21 is provided with an abutting portion 22 for The needle hub 12 of the needle 1 abuts against it. , 1 == 2 · Green below the _ (4) plunger The plug 31 is combined with the joint portion 32 of the upper needle seat (2) at the bottom of the joint = 125, and the joint portion 32 is a protruding fishing portion. (4) The plug 3 is provided with a reducing portion 33 so that the plunger 3 can be biased into two pieces by being biased. In the implementation, when the upper female 121 and the lower needle holder 122 are sequentially inserted into the needle socket 21 from the rear end of the simple needle 2, the abutting portion of the inner wall of the needle socket 21 passes through the upper needle holder 121 and the lower contact 122. There is a Knocker's spine, 124, so that the lower hub 122 can be movably engaged under the upper needle holder 121 to form a ten seat 12' and the needle! The needle hub 12 can be firmly coupled to the needle socket 21 by the sinus portion 22 of the inner wall of the needle socket 21, and is sealed in both the medicine and the injection process. Therefore, when the injection shaft is finished, the force can be applied to make the piston 31 face the z bucket y% = until the joint portion 32 passes through the joint portion 125 of the lower contact 121 and the upper needle holder 122, and the 'close' pulls the column back. After the plug 3, the joint portion of the front end piston 31 of the plunger 3 can be detached from the needle seat 122 and the lower needle holder 122 is pulled down from the support portion 22, and the needle 1 is disengaged from the needle seat 21 Pulled back to the inside of the butt 2 with the abutting portion f, and when the squeezing portion 33 of the plunger 3 is pulled back to the end of the syringe 2, the force can be applied to break the plunger 3 into two Cut-off, recyclable treatment 'effectively reduce waste generation and reduce costs. The above is the specific embodiment of the present invention and the technical means used. According to the disclosure or teaching of the present disclosure, many changes and modifications can be derived, which are produced according to the equivalent changes of the concept of the creation. In the absence of the spirit of the manual and the schema, it shall be deemed to be within the technical scope of this creation. ^ According to the content disclosed above, this creation can achieve the intended purpose of creation, providing a kind of _-type safety syringes with the value of industry and practicality, and submitting new patent applications according to law. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the state before the combination of the needle hub in the present embodiment. Fig. 2 is a schematic view showing the state after the combination of the needle holders of the present embodiment. The third picture is a schematic diagram of the state before the implementation of the financial plunger. Fig. 4 is a schematic view showing the state in which the nipple is joined to the lower red woven portion. Fig. 5 is a schematic view showing the state after pulling back the plug in the present embodiment. [Main component symbol description] 1 : Needle 6 M4.24956 11 : Needle body 12 : Needle holder 121 : Upper needle holder 122 : Lower needle holder 123 : Ratchet portion 124 : Ratchet portion 125 : Engagement portion • 126 : accommodating space 2 : Syringe 21 : Needle socket 22 : Abutment 3 : Plunger 31 : Piston 32 : Joint portion • 33 : Reducing portion 7