TWM411948U - Structure to retract the needle head of safety injection needle cylinder - Google Patents
Structure to retract the needle head of safety injection needle cylinder Download PDFInfo
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- TWM411948U TWM411948U TW100203084U TW100203084U TWM411948U TW M411948 U TWM411948 U TW M411948U TW 100203084 U TW100203084 U TW 100203084U TW 100203084 U TW100203084 U TW 100203084U TW M411948 U TWM411948 U TW M411948U
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Description
100年06月17日梭正替换頁 M411948 五、新型說明: 【新型所屬之技術領域】 [0001] 本創作係關於一種安全注射針筒,係在其注射的過 程當中,使其自動形成一密閉容室,該密閉容室預備吸 入其針頭,可以達成自動縮回針頭之目的。 【先前技術】 [0002] 一習知結構,請參閱第9圖所示者,係為本國新型專On June 17th, 100th, the shuttle is replaced by M411948. V. New description: [New technical field] [0001] This work is about a safe injection syringe, which automatically forms a closed seal during the injection process. The chamber, the sealed chamber is ready to inhale the needle, and the purpose of automatically retracting the needle can be achieved. [Prior Art] [0002] A conventional structure, please refer to the figure shown in Figure 9, which is a new type of national
利第M286674號之「拋棄式安全針筒裝置」,其包括一針 頭91、一銜接部92、一針筒93及一活塞94,其中:針頭 91,包括一針管911及一針座912,其針座912係套置在 銜接部92前端面一管狀承座921上;銜接部92,係塞置在 針筒93内管之前端位並固定住,其係一具有内流道之一 體式成型體,其前端面形成一管徑較小之管狀承座921供 套置一針頭91,而其外環緣面上形成一或以上之環狀凹 槽922供各套置一封塞環圈923,而其後端面上設有一適 當厚度之樞轉片924,該樞轉片924係利用其邊緣處一連 接片925而與銜接部92後端面連接,該連接片925並形成 樞轉片924之樞軸,使樞轉片924可貼覆在銜接部92之後 端面或以連接片925為樞軸而樞轉掀離後端面;又樞轉片 924中央設有一適當口徑之圓形穿孔926以貫通至銜接部 92之内流道空間;活塞94,係在針筒93内往復推拉,其前 端處外緣面設有環狀凹槽供套置封塞環圈941,其前端面 上設有一對應於樞轉片中央穿扎之凸柱942,該凸柱942 具適當高度,其頂端設有一具鉤部943之圓錐狀頭端;藉 此,當活塞94被向前推動而使其凸柱942上之圓錐狀頭端 表單編號A0101 第3頁/共22頁 M411948 100年06月17日修正替换頁 抵在穿孔上時,可再施力推擠活塞以迫使其圓錐狀頭端 迫進穿孔内,並藉其鉤部943而倒鉤住;則在反向拉回活 塞94時,該樞轉片924可樞轉離開後端面而先形成傾斜狀 態,並再藉連接片而拉動銜接部92及其上針頭91向後移 動以回縮至針筒9 3内部。 【新型内容】 [0003](所欲解決技術問題) 然,上述習知結構,欲達到安全目的時,使用人必 須作以下動作:趁針頭91傾斜時須將活塞94用力往前壓使 針管911彎曲後,再將活塞94拉後退至預定處再折斷活塞 柄944的預設處;可見,使用前述習知結構係相當地麻煩 (解決問題之技術手段)The "disposable safety syringe device" of the No. M286674 includes a needle 91, an engaging portion 92, a syringe 93 and a piston 94. The needle 91 includes a needle tube 911 and a needle holder 912. The needle hub 912 is sleeved on a tubular bearing seat 921 on the front end surface of the engaging portion 92; the engaging portion 92 is placed at the front end of the inner tube of the syringe barrel 93 and fixed, and the system has a body flow forming body. The body has a tubular bearing seat 921 having a small diameter to form a needle 91, and one or more annular grooves 922 are formed on the outer circumferential surface for each of the ring rings 923. A pivoting piece 924 of a suitable thickness is disposed on the rear end surface thereof, and the pivoting piece 924 is connected to the rear end surface of the engaging portion 92 by a connecting piece 925 at the edge thereof, and the connecting piece 925 forms a pivoting piece 924. The pivoting piece 924 can be attached to the rear end surface of the engaging portion 92 or pivoted away from the rear end surface by the connecting piece 925 as a pivot; and the circular rotating hole 926 of the appropriate diameter is provided in the center of the pivoting piece 924. To the inner flow space of the connecting portion 92; the piston 94 is reciprocally pushed and pulled in the syringe 93, and the outer edge of the front end The surface is provided with an annular groove for arranging the sealing ring 941, and a front end surface thereof is provided with a protruding column 942 corresponding to the center of the pivoting piece. The protruding column 942 has a suitable height and a hook portion is arranged at the top end. Conical head end of 943; thereby, when the piston 94 is pushed forward to make the conical head end on the stud 942 form number A0101 page 3 / total 22 pages M411948 100 June 17, revised replacement page arrived When the perforation is applied, the piston can be pushed again to force its conical head to force into the perforation and be hooked by its hook 943; then, when the piston 94 is pulled back in the reverse direction, the pivoting piece 924 The arm can be pivoted away from the rear end face to form an inclined state, and the connecting piece 92 and the upper needle 91 thereof are pulled backward by the connecting piece to be retracted to the inside of the barrel 193. [New content] [0003] (To solve the technical problem) However, in the above-mentioned conventional structure, in order to achieve safety purposes, the user must perform the following actions: When the needle 91 is tilted, the piston 94 must be forced forward to make the needle 911 After bending, the piston 94 is pulled back to the predetermined position and then the preset position of the piston handle 944 is broken; it can be seen that the use of the aforementioned conventional structure is rather troublesome (technical solution to the problem)
本創作人有鑑於此,乃憑恃著長期對安全注射針筒 的研究與構思,而創作出一種安全注射針筒縮回針頭之 結構,係包含:一外筒,係為圓形筒狀並在其末端有一末 端容室,以供内活塞桿的彈性凸桿卡抵;一針頭,係包 含一金屬針及一結合座,並在該結合座内設有一推拔槽 ,而其整個從外筒後方組設於該外筒的前端;一外活塞 桿,係為圓形中空狀且在其中段處與末端之間的外圍設 有一軸向滑槽,又該外活塞桿設為沉入外筒内部,且在 其前端内部卡入拉針件;一拉針件,係包含一嵌合錐部 和一膠墊部;其中該拉針件的嵌合錐部與針頭的推拔槽 對應,該拉針件的膠墊部緊配合於外活塞桿的内部前端 ;一内活塞桿,係在其末端接設一彈性凸桿,該彈性凸 桿凸伸於外活塞桿的滑槽而與外筒的内壁抵觸; 表單編號A0101 第4頁/共22頁 I?日接正熟頁 其中該外筒的末端容室的内徑大於該外筒本體的内 役,使該末端容室内徑與本體内徑的結合處產生一落差 其中該外活塞桿的前端設有一推拔孔供該拉針件的 膠塾部歲合,且該推拔孔係為前窄後寬; 其中該外活塞桿與其潸槽的對面周圍及與其對應的肋條 役向貫穿至少—穿孔,又該穿孔周圍的肋條的側邊各設 為斜邊;In view of this, the creator created a safety injection syringe retracting needle structure based on long-term research and conception of a safe injection syringe, which includes: an outer cylinder, which is a circular cylinder and The end has a terminal chamber for the elastic rod of the inner piston rod to be engaged; a needle includes a metal needle and a joint, and a push groove is provided in the joint, and the whole is from the outer cylinder The rear group is disposed at the front end of the outer cylinder; an outer piston rod is circularly hollow and has an axial sliding groove at a periphery between the middle portion and the end portion, and the outer piston rod is set to sink into the outer cylinder Internally, and the inside of the front end of the card is inserted into the needle member; a pull needle member includes a fitting tapered portion and a rubber pad portion; wherein the fitting tapered portion of the pulling needle member corresponds to the pushing groove of the needle, The rubber pad portion of the pulling needle member is tightly fitted to the inner front end of the outer piston rod; an inner piston rod is connected with a resilient protruding rod at the end thereof, and the elastic protruding rod protrudes from the sliding groove of the outer piston rod and the outer cylinder The inner wall is in conflict; Form No. A0101 Page 4 / Total 22 pages I? The inner diameter of the end chamber of the cylinder is larger than the inner chamber of the outer cylinder body, so that a gap is formed between the inner diameter of the end chamber and the inner diameter of the body, wherein a front end of the outer piston rod is provided with a pushing hole for the pulling rod The plastic dome is aged, and the push hole is a front narrow rear width; wherein the outer piston rod and the corresponding ribs thereof and the corresponding ribs run through at least the perforation, and the side of the rib around the perforation Each side is set to a hypotenuse;
其中該外活塞桿的外周圍設有複數個軸向肋條; 其中該針頭末端所設的凸緣與外筒内部前端之間設有— 環型膠墊,且該環型膠墊緊配合於外筒内部前端及 的凸緣; 其中該内活塞桿的彈性凸桿係為從其末端徑向伸出—小 段後向内活塞桿的前端内彎成90度後延伸一段; 其中該内活塞桿的外周圍設有複數個軸向肋條;Wherein the outer circumference of the outer piston rod is provided with a plurality of axial ribs; wherein a ring-shaped rubber pad is arranged between the flange provided at the end of the needle and the inner front end of the outer cylinder, and the annular rubber pad is tightly fitted a front end of the cylinder and a flange; wherein the elastic rod of the inner piston rod is radially protruded from the end thereof; the small portion is extended after the front end of the inner piston rod is bent at 90 degrees; and the inner piston rod is extended a plurality of axial ribs are arranged around the outer circumference;
其中該内活塞桿的中段處設一凸緣,使該内活塞桿 塞:桿内部移動時較不會偏擺; 阀始注射時 —讲和,丨也;仟抵門沽塞桿則不動,在 外活塞桿内的拉針件的後方則形成一密閉容室;續壓 外活3¾ 4日 * 的亡’,則該拉針件因反作用力而後退而在該拉針件 的=束緊力變小的當下’則該拉針件與針頭受大氣壓力 力’亦即等效為桿體内之真空密室之吸力作用一 ° 及進該密閉容室。 安^故,本創作的主要目的:在於提供—種便利操作的 提供叫針筒縮回針頭結構·,又本創作的次要目的:在於 表單編號咖1更安全之安全注射針筒_針頭結構;本創作 第5頁/共22頁 M411948 100年ϋ6月17日核正替換頁 的另一目的:在於提供一種利於資源回收再利用之安全 注射針筒縮回針頭結構。 (對照先前技術之功效) 茲由以上說明得知,本創作相較先前技術,確可達 到如下之功效:Wherein the inner piston rod is provided with a flange at the middle portion thereof, so that the inner piston rod plug: the inside of the rod is less yaw when moving; the valve is injected at the beginning - speaking, and the 丨 is also 仟; A closed chamber is formed behind the pull rod member in the outer piston rod; the continuous pressure is 33⁄4 4 days*, and the pull needle member is retracted by the reaction force and the tightening force at the pull needle member When it is smaller, the needle and the needle are subjected to atmospheric pressure, which is equivalent to the suction force of the vacuum chamber in the rod, and enters the sealed chamber. Safety, the main purpose of this creation is to provide a convenient operation of the needle cylinder retracting needle structure, and the secondary purpose of this creation: in the form number coffee 1 safer safety injection syringe _ needle structure Another objective of the nuclear replacement page is to provide a safe injection retraction needle structure that facilitates resource recycling and reuse. (Compared with the efficacy of the prior art) As can be seen from the above description, this creation can achieve the following effects compared to the prior art:
1、 本創作注射時運用外活塞桿、内活塞桿之間產生 密閉容室,使其吸入該注射後的針頭,讓使用人無須費 力地按壓外活塞桿以彎折金屬針管及折斷外活塞桿,即 能將針頭封入外筒内部後予以丟棄,以達安全注射針筒 之目的;是故,本創作在操作使用上係相當地簡單、容 易及方便。 2、 由於本創作係將針頭吸入在外活塞桿内部,該針 頭係受外活塞桿、外筒的雙層包覆後予以丟棄,可確保 該針頭在運輸過程中不會外露於外筒的外面;是故,本 創作可達成更安全的一種注射針筒。1. During the creation of the creation, a closed chamber is generated between the outer piston rod and the inner piston rod, so that the needle is sucked into the injection, so that the user does not need to press the outer piston rod to bend the metal needle tube and break the outer piston rod. That is, the needle can be sealed inside the outer cylinder and discarded, so as to achieve the purpose of safely injecting the syringe; therefore, the creation is quite simple, easy and convenient in operation and use. 2. Since the creation system inhales the needle into the outer piston rod, the needle is discarded by the double-layer coating of the outer piston rod and the outer cylinder, thereby ensuring that the needle is not exposed outside the outer cylinder during transportation; Therefore, this creation can achieve a safer syringe.
3、 由於本創作的外活塞桿與其滑槽的對面周圍及與 之對應的肋條徑向貫穿至少一穿孔,該穿孔可利於將外 活塞桿的本體折斷;因此,本創作注射完遭丟棄時,可 將該外活塞桿從外筒抽出後將其折斷取出針頭而將本創 作的塑膠件、金屬件作分類回收,以達成資源再利用。 【實施方式】 [0004] 首先,請參閱第1圖至第2圓所示者,為本創作關於 一種安全注射針筒縮回針頭之結構,其係包含:一外筒1 、一針頭2 ' —外活塞桿3 ' —拉針件4及一内活塞桿5 ; 其中, 該外筒1,係為本體10具有透明性材質所製成且其橫 表單編號Α0101 第6頁/共22頁 M411948 100年06月17日接正替換頁3. Since the outer piston rod of the present invention and the corresponding rib around the sliding groove and the corresponding rib extend radially through at least one perforation, the perforation can facilitate breaking the body of the outer piston rod; therefore, when the creation is discarded after the injection is completed, The outer piston rod can be taken out from the outer cylinder, and then the needle is broken and the needle is taken out, and the plastic parts and metal parts of the creation are sorted and recovered to achieve resource reuse. [Embodiment] [0004] First, referring to the figures shown in Figures 1 to 2, the present invention relates to a structure for a safety syringe retracting needle, which comprises: an outer cylinder 1 and a needle 2' - outer piston rod 3' - pull needle member 4 and inner piston rod 5; wherein, the outer cylinder 1 is made of a transparent material of the body 10 and its horizontal form number Α 0101 page 6 / total 22 pages M411948 On June 17, 100, the replacement page was replaced.
斷面為圓形中空狀,又在其前端設有一錐形内孔1 2,在 其末端設有互為相對的二翼片15,該二翼片15與本體10 的連接處設有一末端容室13 ;其十前述的錐形内孔12係 供針頭2穿入,也因針頭2所設的結合座22為錐形且會與 該錐形内孔12對應而產生自鎖狀態以固定該針頭2 ;又該 末端容室13内徑大於本體10的内徑,使該末端容室13内 徑與本體10的内徑的結合處產生一落差16,該落差16係 供内活塞推5的彈性凸桿51卡合,另設有一環型膠墊14置 入外筒1内的最底部與針頭2末端所設一凸緣221之間,該 環型膠墊14得緊配合外筒1内的最底部,使外筒1具有方 止漏液的效果;The cross section has a circular hollow shape, and a tapered inner hole 12 is provided at the front end thereof, and two opposite fins 15 are disposed at the ends thereof, and a joint end portion of the two fins 15 and the body 10 is provided with a terminal end. The chamber 13 has a tapered inner hole 12 for the needle 2 to penetrate, and the coupling seat 22 provided by the needle 2 is tapered and corresponding to the tapered inner hole 12 to generate a self-locking state to fix the The needle 2; the inner diameter of the end chamber 13 is larger than the inner diameter of the body 10, so that a gap 16 is formed between the inner diameter of the end chamber 13 and the inner diameter of the body 10, and the drop 16 is for the inner piston to push 5 The elastic protruding rod 51 is engaged, and a ring-shaped rubber pad 14 is disposed between the bottom of the outer tube 1 and a flange 221 provided at the end of the needle 2. The annular rubber pad 14 is tightly fitted into the outer tube 1. At the bottom of the bottom, the outer cylinder 1 has the effect of stopping liquid leakage;
該針頭2,係包含一金屬針管21及一結合座22,其該 結合座22為透明塑膠一體成形且固設於金屬針管21末端 ,又該結合座22的内部設有一推拔槽222與金屬針管21相 連通,該結合座22的外部周圍亦為錐形且與位於外筒1前 端的錐形内孔12相對應,以致該針頭2能緊密地固定於外 筒1的前端; 該外活塞桿3,係為中空狀的一桿體30,在其前端外 設有一活塞套301且内設有一拉針件4,且在該桿體30末 端設有一凸緣302,又該外活塞桿3設為沉入外筒1内部, 又從該桿體30的中間至凸緣30 2之間設有軸向的一滑槽33 ,該滑槽33係供一内活塞桿5的凸桿51穿伸;其中在該拉 針件4後方緊接設有一内活塞桿5 ;另,該外活塞桿3的外 周圍設有複數個軸向肋條36,又該外活塞桿3與其滑槽33 的對面周圍及與其對應的肋條36徑向貫穿至少一穿孔35 ,又該穿孔35周圍的肋條36的側邊各設為斜邊361 ; 表單編號A0101 第7頁/共22頁 M411948 100年06月17日務正替换頁 該拉針件4,係由一嵌合錐部41及一膠墊部42所組成 ,其中膠墊部42係套設於嵌合錐部41的末端,又該拉針 件4的嵌合錐部41為錐狀與針頭2的結合座22的推拔槽 222對應,該嵌合錐部41與該推拔槽222結合時可產生自 鎖狀態而使拉針件4與針頭2產生連動效果;另該拉針件4 係組設於外活塞桿3前端的錐形内孔32(如第7圖、第8圖 所示者); 該内活塞桿5,係本體50為圓形實心桿,在其末端接 設一彈性凸桿51,該彈性凸桿51係從本體50的末端徑向 伸出一小段後向内活塞桿5的前端内彎成90度後延伸一段 ,故該彈性凸桿51大致呈L狀,當内活塞桿5組設於外活 塞桿3時,而該彈性凸桿51會凸伸於外活塞桿3的滑槽33 而與外筒1的内壁111抵觸;另,該内活塞桿5的外周圍設 有複數個軸向肋條53,又該内活塞捍5的中段處設一凸緣 52,使該内活塞桿5在外活塞桿3内部31移動時較不會偏 擺; 請再參閱第2圓所示,藉由上述元件的組成,本創作 的安全注射針筒的最初原始狀態係為外活塞桿3沉入外筒 1内底部,而内活塞桿5則沉入外活塞桿3内底部而與拉針 件4的膠墊部42接觸,特別該内活塞桿5所設的彈性凸桿 51會凸露於外活塞桿3所設滑槽33的底端,且與外筒1的 内壁111抵觸;如第3圖所示,使用人將本創作的安全注 射針筒插入藥液罐内以拉動安全注射針筒的外活塞桿3以 抽取藥液,直至内活塞桿5的彈性凸桿51沿滑槽33上移至 其彈性卡合定位於外筒1所設的末端容室13 ;如第4圖所 示,開始為病患注射時,使用人推動外活塞桿3而内活塞 表單編號A0101The needle 2 includes a metal needle 21 and a joint 22, and the joint 22 is integrally formed of a transparent plastic and fixed to the end of the metal needle 21, and the inside of the joint 22 is provided with a push-out groove 222 and a metal. The needle tube 21 is in communication, and the outer circumference of the coupling seat 22 is also tapered and corresponds to the tapered inner hole 12 at the front end of the outer cylinder 1, so that the needle 2 can be tightly fixed to the front end of the outer cylinder 1; The rod 3 is a hollow body 30 having a piston sleeve 301 at its front end and a pull rod member 4 therein, and a flange 302 is disposed at the end of the rod body 30, and the outer piston rod 3 is further disposed. It is set to sink into the inner portion of the outer cylinder 1, and an axial sliding groove 33 is provided between the middle of the rod body 30 and the flange 30 2 . The sliding groove 33 is for the protruding rod 51 of the inner piston rod 5 to be worn. Extending; an inner piston rod 5 is disposed immediately behind the pull rod member 4; further, the outer circumference of the outer piston rod 3 is provided with a plurality of axial ribs 36, and the outer piston rod 3 is opposite to the sliding groove 33 thereof. The ribs 36 around and corresponding thereto extend radially through at least one of the through holes 35, and the sides of the ribs 36 around the through holes 35 are respectively set to beveled edges 361. Form No. A0101 Page 7 of 22 M411948 On June 17, 100, the replacement pin page is composed of a fitting tapered portion 41 and a rubber pad portion 42, wherein the rubber pad portion 42 is The fitting taper portion 41 of the pull pin member 4 is tapered and corresponds to the pushing and receiving groove 222 of the coupling seat 22 of the needle 2, and the fitting taper portion 41 and the push-pull portion 41 are sleeved. When the slot 222 is combined, the self-locking state can be generated to make the pull-pin member 4 and the needle 2 have a linkage effect; and the pull-tab member 4 is disposed on the tapered inner hole 32 at the front end of the outer piston rod 3 (as shown in FIG. 7 and The inner piston rod 5 is a circular solid rod, and a resilient protruding rod 51 is attached to the end thereof. The elastic protruding rod 51 protrudes radially from the end of the body 50. The front end of the inner piston rod 5 is bent 90 degrees and then extended for a period of time. Therefore, the elastic protruding rod 51 is substantially L-shaped. When the inner piston rod 5 is assembled to the outer piston rod 3, the elastic protruding rod 51 is convex. The sliding groove 33 of the outer piston rod 3 is in contact with the inner wall 111 of the outer cylinder 1; further, the outer circumference of the inner piston rod 5 is provided with a plurality of axial ribs 53, and a middle portion of the inner piston rod 5 is provided with a The edge 52 makes the inner piston rod 5 less yaw when moving inside the outer piston rod 3; please refer to the second circle, as shown by the second circle, the original original state of the safety injection syringe of the present invention The outer piston rod 3 sinks into the inner bottom of the outer cylinder 1, and the inner piston rod 5 sinks into the inner bottom of the outer piston rod 3 to contact the rubber pad portion 42 of the needle pulling member 4, in particular, the inner piston rod 5 is provided. The elastic protruding rod 51 is protruded from the bottom end of the sliding groove 33 provided by the outer piston rod 3, and is in contact with the inner wall 111 of the outer cylinder 1; as shown in Fig. 3, the user inserts the safety injection syringe of the present invention into the medicine. The outer piston rod 3 of the safety injection syringe is pulled in the liquid tank to extract the liquid medicine until the elastic protruding rod 51 of the inner piston rod 5 moves along the sliding groove 33 to be elastically engaged and positioned at the end capacity of the outer cylinder 1 Room 13; as shown in Figure 4, when the patient begins to inject, the user pushes the outer piston rod 3 while the inner piston form number A0101
第8頁/共22頁 M411948 100年06月17日按正替換頁Page 8 of 22 M411948 June 17, 100 Press the replacement page
桿5因其彈性凸桿51卡入外筒1的末端容室13的落差16處 則不移動,且至外活塞桿3前端的拉針件4卡合於針頭2末 端的推拔槽222為止,此時在外活塞桿3内的拉針件4的後 方已形成預備容納該針頭2的一密閉容室34(如第5圖所示 ),特別一提,外活塞桿3的穿孔35具有逃氣的作用,以 降低手部推動外活塞桿3的阻力;如第6圖及第7圖所示 ,使用人續壓下外活塞桿3,則拉針件4因反作用力而在 外活塞桿3的錐形内孔32内部作後退動作,換言之,該拉 針件4由原本在其受束緊力f較大的位置後退至受束緊 力f較小的位置當下,則該拉針件4與針頭2因外部大 氣壓力的推擠,亦即等效為桿體内之密閉容室34之吸 力作用,則該拉針件4與針頭2因外部大氣壓力P的推擠而 一起被吸進該密閉容室34内,如第8圖所示。 綜合以上所述,本創作的所構成結構之各實施例未 曾見於書刊或公開使用,誠符合新型專利申請要件,懇 請鈞局明鑑,早曰准予專利,至為感禱;需陳明者,以 上所述乃是本創作之具體實施立即所運用之技術原理,The rod 5 does not move because the elastic projection 51 is caught in the drop 16 of the end chamber 13 of the outer cylinder 1, and the needle member 4 to the front end of the outer piston rod 3 is engaged with the pushing groove 222 at the end of the needle 2. At this time, a closed chamber 34 for accommodating the needle 2 is formed behind the needle member 4 in the outer piston rod 3 (as shown in FIG. 5), and in particular, the perforation 35 of the outer piston rod 3 has escape. The action of the gas to reduce the resistance of the hand pushing the outer piston rod 3; as shown in Figures 6 and 7, when the user presses the outer piston rod 3 continuously, the needle member 4 is on the outer piston rod 3 due to the reaction force. The inside of the tapered inner bore 32 is retracted, in other words, the pull-tab member 4 is retracted from a position where the tightening force f is large to a position where the tightening force f is small, and the pull-tab member 4 is When the needle 2 is pushed by the external atmospheric pressure, that is, equivalent to the suction force of the sealed chamber 34 in the rod body, the needle member 4 and the needle 2 are sucked together by the pushing of the external atmospheric pressure P. The sealed chamber 34 is as shown in Fig. 8. In summary, the various embodiments of the structure of the present creation have not been found in books or public use, and are in line with the requirements of the new patent application, and please ask the Bureau to give a patent, and to pray for it; The above is the technical principle applied immediately by the specific implementation of this creation.
若依本創作之構想所作之改變,其所產生之功能作用仍 未超出說明書及圖式所涵蓋之精神時,均應在本創作之 範圍内,合予陳明。 【圖式簡單說明】 [0005] 第1圖:係為本創作結構出廠時原始狀態之剖面圖。 第2圖:係為本創作結構之分解圖。 第3圖:係為本創作結構之抽取藥液之示意圖。 第4圖:係為本創作結構之注射之示意圖。 第5圖:係為本創作結構的外活塞桿已形成密閉容室之示 表單編號A0101 第9頁/共22頁 M411948 !-· »- 100年06月17日*核正替换頁 意圖。 第6圖:係為本創作結構的外活塞桿前端之拉針件位於較 大束緊位置之示意圖。 ; 第7圖:係為本創作結構的外活塞桿前端之拉針件位於較 小束緊位置之示意圖。 第8圖:係為本創作結構的外活塞桿前端之拉針件被吸入 密閉容室之示意圖。 第9圖:習知結構圖。If the functional changes made in accordance with the concept of this creation have not exceeded the spirit of the manual and the drawings, they shall be combined with Chen Ming within the scope of this creation. [Simple description of the drawing] [0005] Fig. 1 is a sectional view showing the original state of the creation structure at the time of shipment. Figure 2: An exploded view of the creative structure. Figure 3: Schematic diagram of the extraction of the drug solution for the creation structure. Figure 4: A schematic diagram of the injection of the creative structure. Figure 5: The outer piston rod of the original structure has been formed into a closed chamber. Form No. A0101 Page 9 of 22 M411948 !-· »- June 17th, 2006 * Nuclear replacement page Intent. Fig. 6 is a schematic view showing the needle-pulling member at the front end of the outer piston rod of the original structure in a relatively large tightening position. Fig. 7 is a schematic view showing the stylus member at the front end of the outer piston rod of the original structure in a relatively small tightening position. Fig. 8 is a schematic view showing the drawing of the needle member at the front end of the outer piston rod of the original structure into the sealed chamber. Figure 9: A conventional structure diagram.
【主要元件符號說明】 [0006] 「本創作」 外筒1 内部11 錐形内孔12 環型膠墊14 落差16 金屬針管21 凸緣221 外活塞桿3 活塞套3 01 内部31 滑槽33 穿孔35 斜邊3 61 嵌合錐部41 内活塞桿5 彈性凸桿51 表單編號A0101 本體10 内壁111 末端容室1 3 翼片15 針頭2 結合座22 推拔槽222 桿體30 凸緣302 錐形内孔32 密閉容室34 肋條36 拉針件4 膠墊部42 本體50 凸緣52 第ίο頁/共22頁[Main component symbol description] [0006] "This creation" Outer tube 1 Internal 11 Tapered inner hole 12 Ring type pad 14 Drop 16 Metal needle 21 Flange 221 Outer piston rod 3 Piston sleeve 3 01 Inner 31 Chute 33 Perforation 35 Beveled edge 3 61 Fitting taper 41 Inner piston rod 5 Elastic lug 51 Form No. A0101 Body 10 Inner wall 111 End chamber 1 3 Flap 15 Needle 2 Binding seat 22 Pushing groove 222 Rod body 30 Flange 302 Tapered Inner hole 32 Closed chamber 34 Rib 36 Pull pin 4 Pad portion 42 Body 50 Flange 52 Page 395
M411948 100年06月17日梭正替換頁 肋條53 大氣壓力P 受束緊力f 「習知結構」--9 針頭91 針管911 針座912 銜接部92 管狀承座921 凹槽922 封塞環圈923 柩轉片924 連接片925 穿孔926 針筒93 活塞94 封塞環圈941 凸柱942 鉤部943 活塞柄944 表單編號A0101 第11頁/共22頁M411948 June 17, 100 Shuttle replacement page ribs 53 Atmospheric pressure P Tension force f "Practical structure" - 9 Needle 91 Needle 911 Needle seat 912 Engagement 92 Tubular socket 921 Groove 922 Closure ring 923 柩 924 924 connecting piece 925 perforation 926 syringe 93 piston 94 sealing ring 941 stud 942 hook 943 piston handle 944 form number A0101 page 11 / total 22 pages
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TW100203084U TWM411948U (en) | 2011-02-21 | 2011-02-21 | Structure to retract the needle head of safety injection needle cylinder |
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TW100203084U TWM411948U (en) | 2011-02-21 | 2011-02-21 | Structure to retract the needle head of safety injection needle cylinder |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI572385B (en) * | 2011-10-21 | 2017-03-01 | 賽諾菲阿凡提斯德意志有限公司 | Auto-injector |
TWI581813B (en) * | 2015-03-13 | 2017-05-11 | Chane Yu Lai | Needle tip with protective cover |
-
2011
- 2011-02-21 TW TW100203084U patent/TWM411948U/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI572385B (en) * | 2011-10-21 | 2017-03-01 | 賽諾菲阿凡提斯德意志有限公司 | Auto-injector |
TWI581813B (en) * | 2015-03-13 | 2017-05-11 | Chane Yu Lai | Needle tip with protective cover |
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