1258379 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種安全沐糾哭α丨η — 裡文王庄射裔，特別是指一種可將使用 完畢的針頭座縮至注射筒中的安全注射器。 【先前技術】 按，-般習用之針筒，其針頭係以旋鎖之方式固定， 因此’當使用者使用完畢時，需再將針頭蓋蓋合該針頭再 行丟棄，㈣免他人遭相螫傷，而發生受傷或遭感染的 現象。 但是，使用者常在使用完畢時，將該針頭蓋蓋合該針 頭時’常因為—時的眼花、滑手或是精神不專注等現象， 而刺傷了自己而刺傷事小’如被注射之患者患有肝炎、 愛滋病或-些經由血液傳㈣疾病......等等，那被刺傷者 會經由該患者使用過之針頭而傳染。 因此，上述之針筒時有需做進一步改良之必要，以避 免最常使用針筒的護理人，有上述之現象產生而遭感 染的情形產生’本案發明人鐘於上述習用之針筒所衍生的 各項缺點，乃亟思加以改良創新，並經多年苦心孤諸潛心 研究後，終於成功研發完成本件安全注射器。 【發明内容】 本發明之目的即在於提供—種安全注射器，係可達環 境保護、廢棄物處理體積縮減之簡便注射器。 1258379 本毛明之-人-目的係在於提供一種於使用完畢後，針 頭蓋係可插置於注射筒之安全注射器。 本么明之另-目的係在於提供一種於使用完畢後斜頭 座可容置於注射筒之容置部的安全注射器。 、 本創作之又-目的係在於提供—種推桿之主體與頸部 間係以數連接點連接在一起，並在使用後可將主體與頸部 折斷分離之安全注射器。 可達成上述發明目的之安全注射器，包括有： …'主射同，係為一具有頂端及底端之圓管體，其接近 时體之底端内部係環設有一環凸部，以使該環凸部與底 μ成谷置部，且該容置部係由該環凸部後端沿底端漸 縮呈一圓錐體之形態，並於該注射狀底端外緣開設有一 與容置部相通之穿孔’其穿孔之孔徑係由容置部漸縮於底 端外緣之圓錐形態； -推桿，該推桿係由一按壓部、一主體、一頸部、一 凸柱及-套環所組成，該頸部之前端係設有環凹部並以 套環套設於環凹部之上，而該凸㈣為—球狀圓錐體； 一針頭座，係設有一變化曲面之基座、一套座及一套 合部’該基座之上平面之形狀為一呈有長轴與短轴且近似 於橢圓形之形態，且該上平面之外圍環繞的總長係小於環 凸部内圍環繞的總長，而該基座之下平面之形狀係為一圓 1258379 形之型恶並開設有一圓孔，其位於套合部之圓孔係可固設 針碩，該針頭係與基座内開設之圓孔相通； 一針頭蓋，係成中空之圓錐形態以供蓋合該針頭之 用，且該針頭蓋之外緣環設有數凸肋。 【實施方式】 明參閱圖一、圖二及圖三，本發明所提供之安全注射 器，其具有： /主射筒1，係為一具有頂端及底端之圓管體1丨，其 接近圓管體11之底端内部係環設有—環凸部U1，以使該 環凸部111與底端形成_容置部12，且該容置部12係由該 環凸部111後端沿底端漸縮呈—圓錐體之形態，並於該注 射筒1之底端外緣開設有一與容置部12相通之穿孔14,其 穿孔14之孔徑係由容置部12漸縮於底端外緣之圓錐形態； 一推桿2，該推桿2係由一按壓部21、一主體22、一 頸部23、一凸柱25及一套環26所組成，該頸冑23之前端 係設有環凹部24，並以套環26套設於環凹部24之上，該 套環26係可由橡膠或矽膠所製成，於本實施例中該套環託 係為橡膠所製成，而該凸柱25係為一球狀圓錐體； 一針頭座3，係設有一變化曲面之基座31、一套座犯 及一套合部34,該基座31之上平面314之形狀為一呈有長 軸312與短軸313，且近似於橢圓形之形態，且該上平面 1258379 314之外圍環繞的總長係小於環凸部lu内圍環繞的總 長，而該基座31之下平面315之形狀係為一圓形之型態並 開設有一圓孔316，其位於套合部34之圓孔316，係可固 設一針頭33，該針頭33係與基座31内開設之圓孔316相 通； 一針頭蓋4 ,係成中空之圓錐形態以供蓋合該針頭⑽ 之用，且該針頭蓋4之外緣環設有數凸肋41，如圖九所示， 而該針頭蓋4係可成頂、底端相通的形態或只具有一開口 的形態，而於本實施例中係以頂、底端相通的形態為說明 例； 請參閱圖四，該針頭座3係以基座31穿過該注射筒工 之圓管體11，並以基座31上平面314之長軸312二端頂抵 於環凸邛111之下緣，以形成一抵擋狀態設至於容置部 12,而該針頭座3之套座32為穿過注射筒丨的穿孔後， 藉以由基座31之下平面315與套座32密合於穿孔14，其 推桿2所設置之套環26能與注射筒丨之圓管體u密合， 如圖五所示，當使用者向注射筒丨内產生推擠壓力注射藥 劑，使藥劑注射完成後，推擠的力量會使該推桿2之凸桎 進入針頭座3之基座31，如圖六所示，在凸柱25進入 基座31的同時基座31的變化曲面會逐漸變成圓錐狀曲 面以使上平面314至下平面315中間之變化曲面逐漸與 1258379 、 凸柱25密合’進而使凸柱25之圓錐體與基座31之銜接部 311藉由迫緊力與摩擦力相結合，如圖七所示，再同時因基 座31上平面314外徑尺寸略小於環凸部111的内徑尺寸， 因此，當使用者拉拔出推桿2時（如圖八所示），可將針頭 座3脫離於容置部12並收藏於注射筒丨之圓管體11中。 參閱圖二，本發明之針頭座3另可設置第二實施態樣， 該針頭座3所設置之套合部34係提供其針座35之套設； 而針座35係為目前常用之針座，使用者可依需求拿取不同 規袼之針頭，並將針座35藉由固接部351套設於套合部 34，以提供使用。 為更詳盡說明，請再參閱圖三至圖九，當使用本發明 之安全注射器時，以食、中指抵住該注射筒i的抵止部 再以拇指輕壓該推桿2的按壓部2卜俾將容置於注射筒i 中的藥劑（圖中未顯示）經擠壓由該針頭33注出，而當推 動該按壓部21而使該推桿2移動至該注射筒i的底部時， 該推桿2的凸柱25會容置於該針頭座3之基座31的:接 部 態，而此種狀態下的基座31直徑會略小於該環凸部⑴的 孔徑’因此，當使用者將該推桿2後拉出注射筒i時該 針頭座3會隨輸桿2的後拉，而退出該注射筒）的容 置部12，使得該針頭33内縮於該圓管體11中 1258379 再者’由於該針頭蓋4之外緣環設數枝具有錐度的凸 肋41且係成頂、底端相通的形態，因此，可將該針頭蓋 4插m射筒i之穿孔14中，再藉由，其具錐度的凸肋 41迫緊定位。 在本發明之注射筒1中，該容置部12與該穿孔係 以相連通叹置’且該容置部12之孔徑係大於該穿孔 孔徑，因此則形成—具有階級之形態，所以當基座31設置 於'主射筒1中時’能完全對應於該容置部12及穿孔14,並 :完全的容置於該容置部12之中，使得該針頭座3無法從 牙孔14掉出„亥,主射筒i的情況產生其容置部η與該穿 孔14之階級形態設計，亦可避免其注射時藥劑外漏的現象 產生。 另，該注射筒1位於抵止部13的位置設有一傾斜部 15’且該傾斜部15與貫穿孔U相接處係形成階級之形態， 因此’當該安全注射器使用完畢時，使用者將該推桿2移 動至抵止部13時，該推桿2之擂止部27可卡止於抵止部 13’使之推桿2無法動彈不致脫離注射筒i，又推桿2之主 體22與頸部23間係以若干連接點予以連接在—起，當注 射筒1使用後可將主體22與頸部23折斷分離。 本發明所提供之安全注射器，與前述引證案及其他習 用技術相互比較時，更具有下列之優點： Ϊ258379 ⑴t «桿推至注射筒之底部時，可提供該針頭座 能隨著推桿退出該容置部，而容置於其圓管體中 :棄以防止他人遭該針頭螫傷的情形。 ⑺冑使用完時，該針頭蓋係可插置於該基座的穿孔 中起丢棄’以節省資源回收體積。 綜上所述，本案不但在空間型態上確屬創新，並能較 白用物品增進上述多項功效，應已充分符合新 穎性及進步 性之法定發明專利要件’爱依法提出申請，騎貴局核 准本件發明專利申請案，以勵發明，至感德便。 【圖式簡單說明】 月多閱以下有關本發明一較佳實施例之詳細說明及其 附圖’將可進_步瞭解本發明之技術内容及其目的功效； 有關該實施例之附圖為： 圖一為本發明安全注射器第一實施例之分解視圖； 圖二為本發明安全注射器第一實施例之分解視圖； 圖二為該安全注射器之立體分解視圖；； 圖四為該注射筒與套環結合後之放大視圖； 圖五為該推桿設置於注射筒之示意圖； 圖六為該安全注射器之結合視圖； 圖七為該安全注射器之結合放大視圖； 圖八為該推桿之圓錐體與基座之銜接部結合後，將針 1258379 頭座脫離於容置部之示意圖；.以及 圖九為該安全注射器之推桿後拉出注射筒及推桿之主 體與頸部折斷分離之示意圖。 【主要部分代表符號】 1注射筒 11圓管體 111環凸部 12容置部 1 3抵止部 14穿孔 15傾斜部 2推桿 21按壓部 22主體 23頸部 24環凹部 25凸柱 26套環 27擋止部 3針頭座 3 1基座 11 1258379 3 11銜接部 312長軸 313短轴 3 14上平面 315下平面 3 16圓孔 32套座 33針頭 34套合部 35針座 3 5 1固接部 4針頭蓋 41凸肋 121258379 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a safe squeaking crying α丨η — Li Wen Wang Zhuang, especially a safety syringe that can retract a used needle into a syringe . [Prior Art] According to the conventional syringe, the needle is fixed by a twist lock. Therefore, when the user finishes using it, the needle cover should be covered and the needle should be discarded again. (4) Bruises, injuries or infections. However, when the user finishes using the needle, the needle cover is often used because of the phenomenon of vertigo, slippery hands or mental disorientation, and stabbed himself and stabbed the little thing as if it was injected. The patient has hepatitis, AIDS or some blood transfusion (4) disease, etc., and the stabbed person will be infected through the needle used by the patient. Therefore, there is a need for further improvement in the above-mentioned syringes, in order to avoid the caregiver who most often uses the syringes, and the above-mentioned phenomenon is caused by infection, resulting in the case that the inventor of the present invention is derived from the above-mentioned conventional syringes. The shortcomings of the company are the improvement and innovation of the company, and after years of painstaking research, finally successfully developed this safety syringe. SUMMARY OF THE INVENTION The object of the present invention is to provide a safety syringe which is a simple syringe capable of achieving environmental protection and reducing waste volume. 1258379 This Maoming-Person-Purpose is to provide a safety syringe that can be inserted into the syringe after use. Another object of the present invention is to provide a safety syringe that can be placed in the housing of the syringe after use. The purpose of this creation is to provide a safety syringe in which the body and the neck of the putter are connected by a plurality of joint points, and the body and the neck are broken apart after use. The safety syringe capable of achieving the above object of the invention comprises: a main projection, a circular tube body having a top end and a bottom end, wherein the inner end ring of the bottom end of the body is provided with a ring protrusion to enable the The annular convex portion and the bottom portion are formed into a valley portion, and the receiving portion is tapered from the rear end of the annular convex portion into a shape of a cone, and the outer edge of the injection-shaped bottom end is opened and accommodated. The perforation of the perforation is a conical shape in which the aperture of the perforation is tapered from the receiving portion to the outer edge of the bottom end; - the push rod is composed of a pressing portion, a main body, a neck portion, a protruding column and - a collar, the front end of the neck is provided with a ring recess and is sleeved on the ring recess, and the protrusion (four) is a spherical cone; a needle seat is provided with a base of a curved surface a set of seats and a set of joints. The plane above the base is in the form of a long axis and a short axis and is approximately elliptical, and the total length of the outer periphery of the upper plane is smaller than the inner circumference of the ring convex portion. The total length of the circumference, and the shape of the plane below the base is a round shape of 1258379 and has a round hole The round hole of the sleeve portion can fix the needle, and the needle communicates with the circular hole opened in the base; the needle cover is formed into a hollow cone shape for covering the needle, and the needle The outer edge of the head cover is provided with a plurality of ribs. [Embodiment] Referring to Figure 1, Figure 2 and Figure 3, the safety syringe provided by the present invention has: / a main shooting barrel 1 which is a circular tube body having a top end and a bottom end, which is close to a circle The inner end of the tubular body 11 is provided with a ring protrusion U1 such that the ring protrusion 111 forms a _ accommodating portion 12 with the bottom end, and the accommodating portion 12 is bounded by the rear end of the ring protrusion 111 The bottom end is tapered in the shape of a cone, and a through hole 14 is formed in the outer edge of the bottom end of the syringe 1 to communicate with the receiving portion 12, and the aperture of the through hole 14 is tapered from the receiving portion 12 to the bottom end. a tapered shape of the outer edge; a push rod 2 consisting of a pressing portion 21, a main body 22, a neck portion 23, a protruding post 25 and a set of rings 26, the front end of the neck brace 23 An annular recess 24 is provided, and the collar 26 is sleeved on the annular recess 24, and the collar 26 can be made of rubber or silicone. In the embodiment, the collar is made of rubber, and the collar is made of rubber. The protrusion 25 is a spherical cone; a needle holder 3 is provided with a base 31 for changing a curved surface, a set of a seat and a set of 34, and the shape of the upper surface 314 of the base 31 is The long axis 312 and the short axis 313 are formed, and approximate to an elliptical shape, and the total length of the periphery of the upper plane 1258379 314 is smaller than the total length of the inner circumference of the ring convex portion lu, and the lower surface 315 of the base 31 The shape is a circular shape and defines a circular hole 316. The circular hole 316 of the sleeve portion 34 is fixed to a needle 33. The needle 33 is connected with a circular hole 316 formed in the base 31. a needle cover 4 is formed in a hollow conical shape for covering the needle (10), and the outer edge ring of the needle cover 4 is provided with a plurality of ribs 41, as shown in FIG. 9, and the needle cover 4 is In the embodiment, the top and bottom ends are connected to each other, and in the embodiment, the top and bottom ends are connected to each other. For example, referring to FIG. 4, the needle holder 3 is provided with a base 31. Passing through the tubular body 11 of the syringe, and the two ends of the long axis 312 of the upper surface 314 of the base 31 abut against the lower edge of the ring tenon 111 to form a resisting state to the receiving portion 12, and The sleeve 32 of the needle holder 3 is a perforation through the syringe barrel, whereby the flat surface 315 of the base 31 is in close contact with the sleeve 32. 14. The collar 26 provided by the push rod 2 can be closely adhered to the round tube body u of the syringe barrel. As shown in FIG. 5, when the user generates a pushing force for injecting a medicament into the syringe barrel, the medicament is injected. Upon completion, the pushing force causes the tenon of the push rod 2 to enter the base 31 of the needle holder 3, as shown in Fig. 6, as the stud 25 enters the base 31, the curved surface of the base 31 gradually becomes The conical surface is such that the curved surface in the middle of the upper plane 314 to the lower plane 315 is gradually adhered to the 1258379 and the post 25, and the engaging portion 311 of the cone of the stud 25 and the base 31 is pressed and frictional. In combination, as shown in FIG. 7, at the same time, since the outer diameter of the plane 314 on the base 31 is slightly smaller than the inner diameter of the annular protrusion 111, when the user pulls out the push rod 2 (as shown in FIG. The needle holder 3 can be detached from the accommodating portion 12 and stored in the round tube body 11 of the syringe barrel. Referring to FIG. 2, the second embodiment of the needle holder 3 of the present invention can be further provided. The sleeve portion 34 of the needle holder 3 is provided with a sleeve of the needle holder 35; and the needle holder 35 is a commonly used needle. The user can take different needles according to the requirements, and the needle holder 35 is sleeved on the sleeve portion 34 by the fixing portion 351 for use. For more detailed description, please refer to FIG. 3 to FIG. 9 again. When using the safety syringe of the present invention, the food and the middle finger are pressed against the abutting portion of the syringe i, and the pressing portion 2 of the push rod 2 is lightly pressed by the thumb. The medicine (not shown) accommodated in the syringe i is squeezed out by the needle 33, and when the pressing portion 21 is pushed to move the push rod 2 to the bottom of the syringe i The protrusion 25 of the push rod 2 is accommodated in the joint state of the base 31 of the needle holder 3, and the diameter of the base 31 in this state is slightly smaller than the diameter of the ring protrusion (1). When the user pulls the push rod 2 out of the syringe i, the needle holder 3 will withdraw from the receiving portion 12 of the syringe with the back pull of the rod 2, so that the needle 33 is retracted into the tube. 1258379 in the body 11 Further, since the outer edge of the needle cover 4 is provided with a plurality of tapered ribs 41 and is connected to the top and the bottom end, the needle cover 4 can be inserted into the m barrel i. In the perforation 14, the tapered rib 41 is pressed and positioned. In the syringe 1 of the present invention, the accommodating portion 12 and the perforation are in communication with each other and the aperture of the accommodating portion 12 is larger than the perforation aperture, so that it is formed into a class form, so When the seat 31 is disposed in the main shot 1 , it can completely correspond to the receiving portion 12 and the through hole 14 , and is completely received in the receiving portion 12 , so that the needle holder 3 cannot be from the tooth hole 14 . When the ejector is released, the case of the main shot i produces the shape of the accommodating portion η and the perforation 14 , and the phenomenon of leakage of the medicament during injection can be avoided. Further, the syringe 1 is located at the abutting portion 13 The position is provided with an inclined portion 15' and the inclined portion 15 is in contact with the through hole U to form a class. Therefore, when the safety syringe is used, the user moves the push rod 2 to the abutting portion 13 The rest portion 27 of the push rod 2 can be locked to the abutting portion 13' so that the push rod 2 cannot move out of the syringe i, and the main body 22 of the push rod 2 and the neck portion 23 are connected by a plurality of connection points. When the syringe 1 is used, the main body 22 and the neck 23 can be broken and separated. The present invention provides The full syringe, when compared with the aforementioned citations and other conventional techniques, has the following advantages: Ϊ258379 (1)t« When the rod is pushed to the bottom of the syringe, the needle holder can be provided to withdraw from the receiving portion with the push rod, It is placed in its round tube: it is discarded to prevent others from being injured by the needle. (7) When used, the needle cover can be inserted into the perforation of the base to discard it to save resource recovery volume. In summary, this case is not only innovative in terms of space type, but also can enhance the above-mentioned multiple functions compared with white goods. It should be fully in line with the novelty and progressiveness of the statutory invention patents. The Office approves the invention patent application, in order to invent the invention, to the sense of convenience. [Simplified description of the drawings] The following detailed description of a preferred embodiment of the present invention and its accompanying drawings will be BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a first embodiment of a safety syringe of the present invention; FIG. 2 is a first embodiment of a safety syringe of the present invention; Figure 2 is an exploded perspective view of the safety syringe; Figure 4 is an enlarged view of the syringe and the collar; Figure 5 is a schematic view of the push rod disposed on the syringe; Figure 6 is the safety syringe Figure 7 is a combined enlarged view of the safety syringe; Figure 8 is a schematic view of the needle 1258379 head seat being detached from the accommodating portion after the combination of the cone of the push rod and the base; After the push rod of the safety syringe is pulled out, the main body of the syringe and the push rod are broken and separated from the neck. [Main part representative symbol] 1 syringe 11 round tube 111 ring convex portion 12 accommodating portion 1 3 Portion 14 perforation 15 Inclined portion 2 Push rod 21 Pressing portion 22 Main body 23 Neck 24 Ring recess 25 Stud 26 Loop 27 Stopper 3 Needle seat 3 1 Base 11 1258379 3 11 Engagement 312 Long axis 313 Short axis 3 14 upper plane 315 lower plane 3 16 round hole 32 sleeve 33 needle 34 sleeve portion 35 needle seat 3 5 1 fixing portion 4 needle cover 41 rib 12