TW200918112A - Safety syringe device with separable needle stem by turning back - Google Patents

Safety syringe device with separable needle stem by turning back Download PDF

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Publication number
TW200918112A
TW200918112A TW96138867A TW96138867A TW200918112A TW 200918112 A TW200918112 A TW 200918112A TW 96138867 A TW96138867 A TW 96138867A TW 96138867 A TW96138867 A TW 96138867A TW 200918112 A TW200918112 A TW 200918112A
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Taiwan
Prior art keywords
needle
syringe
space
positioning
push rod
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TW96138867A
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Chinese (zh)
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TWI334356B (en
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Wei-Shui Wu
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Wei-Shui Wu
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Publication of TWI334356B publication Critical patent/TWI334356B/en

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Abstract

A safety syringe device with separable needle stem by turning back is composed of a syringe tube, a push rod, a needle seat, a needle stem and a needle cap. The needle stem is attached to a bushing which being fitted to a core bit thereby fixing the needle seat at its position. The syringe tube and the needle seat that being screw combined are further tightly settled by dexterous positioning means. After finishing syringe, the needle sheet along with the needle stem is withdrawn and hidden in the syringe tube, the push rod can be broken at its brittle neck portion by tapping it against a breaking fringe formed around the syringe tube thereby leaving the needle seat and needle stem inside the syringe tube. By so the used needle stem will never emerge out accidentally to puncture people's skin. The used syringe tube, push rod, needle seat and stem can be thrown away altogether to avoid restoring for reuse.

Description

200918112 九、發明說明: 【發明所屬之技術領域】 器,而其推桿與針座間結合時具有較佳之摩擦 本發明係有關於-種可將使用過後 筒中之安全注射- r員口收置入於注射 容易者 力與迫緊效果,且其結構使製造更為 【先前技術】 隨著科技之進步以及醫療技術的提升’人類對於醫療安全 :重要性!更深—層的了解’也因此對於醫療器具的使用不論 疋在使用時更加小心,或是在使用後的處理過程亦相當重視, 因為不當的醫療器材使用行為,特別是侵入人體的彻置 使用如果不當,所造成的傷害並非只有當事人而已,其料成 的傷害與影響是無法估計的! 而目前,對於注射裝置之使用著重於預防重覆性使用以及 針頭块傷的問題,除了將使用過的注射裝置進行破壞使^法 再次提供使用外’在其破壞的過程中更需要有保護操作人員的 安全防護構造’以避免醫護人員在將使用過後的針頭拔除回收 置於安全部位時發生有被刺傷的可能狀況產生,因此本案發明 人雖已擁有多項有關安全注射聚置之專利,但是仍針對安纽 射敦置之結構精簡化、以及增加各構件間結合之摩擦力斑伯緊 效果亟思改良’秉持精益求精之精神,再繼續潛心研究'。〜“ 【發明内容】 内藏於注射 本發明之目的即在於提供—種可收回針頭並完 200918112 、-畢後,針項蓋係可插置或 的可轉動分離針頭之注射器;該、射同内 使用後,利用較小直徑之推心%刀離針碩之注射器可在 权(直仏之推f干的頸部’使 斷分離之操作。 隹#可以作折 本發明—種安全注射器,主要提供結構簡單 並且各構件之組接更行緊 以“ ’ 按m在之—種注射裝置 射筒、-推捍、一針座… 、係。括有一注 、 ^ 4十項以及一針頭蓋所組成;j:中 该注射筒具有一儲藥空間 如城# , 兩未工間之丽端内部設右 内螺旋段,其後端内部凸一 二 °有折斷邊緣,於該儲藥空 別端外部則縮小其外徑形、 弋徂工間,由该定位空一 針頭穿孔與該儲藥空間 複數之定位部; “位空間於其内部周面設置有 a推#係牙置在❹射筒内,其頂端設有—具較小圓徑之 頂推部,該頂推部之 工 著套〜套广 方'外部周圍設有複數個對位部,並接 ^使该套環係迫緊在該注射筒其儲藥空間之壁面 接在该套環之下方設有—段縮小圓徑之一顯部; 其針=座係二前端所設縮小圓徑之一穿套部伸出該注射筒 頭苗,、牙t外Γ错—組接套接設穿套部及該針頭後再套蓋該針 有二而方。玄穿套部之中心穿設一通道’於該通道之後端設置 谷置空間’於該容置空間之表面凸設有複數個定位塊,於 相4之一&位塊間則形成有—限位空間’據以供該推桿之對位 200918112 部可以嵌入’於該針座 心 辽之外周圍5又有-外螺旋段以及設有—固 持塊,係對應於該注身 , ㈣其内螺知段以及其定位部而設者; 前4::上結構’令該針座組㈣推桿之頂推部後,被往 ❹動至该注射筒其針頭穿孔處時,令該針座 注射筒其内螺旋段相蟬a,饮日寸#广 …亥 累口 $且輸之固持塊可以嵌入該注 部之間’而完成緊密卡料位之組接動作,並當以 目反於4寻螺旋段之方向旋動該推桿往下時,可連動該針座往 γ脫離該針财孔,㈣推桿之頸部接觸射筒其折斷邊緣 f右板動該推桿以折斷其頸部,而將針座以及其上組接之 針頭留置在注射筒中s 最後再將針頭蓋反向插入針頭穿孔内。 【實施方式】 请參閱圖一应fgj - & - ., ^ ”圖一所不,本發明一種安全注射器10,其係 匕括有一注射筒丨丨、— 推杯12、一針座13、—針頭141以及一 針頭蓋15所組成;其中 I主射筒11其結構與本發明人前幾件申請案中之注射筒大 =相同’主要係為一圓筒形之物體,其中心内部形成-儲藥空 間in’於該儲藥空間m之前端外部設有一段縮小外徑之部位 而形成有-定位空間112,於該定位空間112處設有—針頭穿孔 ⑴,該針頭穿孔U3且與該儲藥㈣⑴連通,又,該儲藥空 引而内。(5 °又有主方螺紋狀之一内螺旋段114延長設置 至°亥針碩穿孔113處,而該定位空間112則於其内部周面以等 200918112 距離、間隔設置有複數、呈三角形凸塊狀之定位部ιΐ5,而於相 鄰—定位部115之間則形呈有凹入空間116(請配合參閱圖六與 圖七所示),於其儲藥空間⑴後端向内崎一折斷邊緣 117’於該注㈣11之端部另設有可供人手姆指抵推用力之一 推片118 ; 該推桿12係穿置在該注射筒η内,其頂端設有—呈較小 _之頂_ 121’於該了《部⑵之下方外部處、間隔設 有複數個呈矩形凸塊狀之對位部122,各該對位部122其前端為 令央向兩側斜傾之導引面⑽,而於該等對位部122之下方設 扱.彖123,套% 124係套設於該等對位部122與擋緣 之間’且該套環124係迫緊在該注射筒u其儲藥空間⑴之壁 面上’又,於該麟123 <下讀有—段縮小圓徑之-頸部 125,係供注射完畢後扭動推桿12而可將其頸部125以上之部 留置在主射同U中之作用者;而於該頸部⑵之下方接設有 若干長形之肋條126,於該等肋條126之末端設有供人手姆指抵 ’該推片127係設呈八邊形狀,於預定相對 之其中二邊片上標設有指向相對之箭頭才票示者; 、該針座13係以其前端設—縮小圓經之穿套部⑶,套設— 套環139在其所具有之凹環槽138上定位後,再穿伸通過該注 射筒U其針頭穿孔113外’並據以供-形狀以其相近之-組接 套“得以對應套組於其穿套部131上定位,而於該組接套14 200918112 上係以穿組或黏接之方式設置一針頭141,使於該穿套部⑶ 中心穿設-通道132,於該通道132之後端連通設置有一容置空 間133’令裝置在該注射筒u其定位空間ιΐ2上定位之針座… 其容置空間i33、通道132以及針頭141得以相通,使於該該注 射筒η其儲藥空間⑴内所容裝之藥液可以經由此一通路從針 頭14Η主射進入欲注射者之體内者;於該容置空間⑶之表面 間隔設置有複數個定位塊134,於相鄰之二定位塊戰則形成 有一限位空間135,該等定位塊134係對應於該推㈣其對位 部122之形狀亦設呈矩形凸塊狀且於其底端設為中央向兩側斜 傾之導引面削,令其與該推桿12組接時,藉由該等㈣面 1341” 1221之引導’在推桿12往前推動時即順勢以其對位部 ]屬入針座以限位空間135内嵌合而完成組接,該針錢 於其容置空間133外周圍設有-外螺旋段136以及一固持塊 137其外螺旋段136係對應於該注射筒“其内螺旋段川亦 呈方螺紋,使該針座14可以與該注射筒丨丨緊密旋合’而藉該 針座14呈三㈣凸塊之固持塊137則可卡抵於該注射筒以 相鄰一定位部115中間之一凹入空間U6中而完成定位; 遠針頭蓋15係一設呈圓錐形套體,可以蓋合穿出於該注射 =其針頭穿孔112外組接㈣之用,以避免針頭141直接 外路而有刺傷人體之危險產生。 據由以上所述之一種安全注射器1〇,請參閱圖三所示,當 200918112 使用發明之安全注射器1G時,首先將該針座i3置人於該注射 筒11之儲藥空間m内,而該推桿12則由針座13之後方推入, 而令其對㈣122對應叙入於針座13之内部相鄰二定位塊134 間之限位空請中組接完成’繼續推動該推桿12並帶動該針 座13往前,當該針座13其穿套糊欲穿伸通過該注射筒u 其針頭穿孔113之時,該針座13其外螺旋段136因與該注射筒 Π其内螺旋段m相螺合,使針座13可以順著旋向往前,請參 閱圖四所不,待其固持塊137抵緊於該注射筒11其相鄰二定位 部” 116巾梅,物㈣圖七所 不’於該針座13上之套環139恰抵持於該注射筒u之定位, 間⑴處,與該推桿12上之套環124迫緊著注射筒^之壁面, μ保其馳㈣全㈣晴;導將該轉 ㈣套組於該針座〗3其穿套部131穿出於該注射们〗其針頭 穿孔112之部位,再蓋合上該針頭蓋,如圖五所示。 當使用者欲抽取藥液時之動作與習用者相同,拿下謂頁 蓋/5並將針頭⑷插入藥瓶中(圖未示出),直接將該推二 在後拉回即可將樂液抽吸進入於儲藥空間⑴之中,因為节針 f]3已藉該外螺紋段136以及固持請之結構,可以二地 、'旦設定位在該注射筒,不會受推桿12之直向前進或後退 之方式影響;而當注射完畢後,令該推桿12持續往前並復以其 對位部卿職入於該針座13之限位空間】%中,接著則反 10 200918112 向旋轉該推桿12而連動該針座13順著螺旋之方向退後,令盆 固持塊137脫離凹入空間116, ' 脫離該湖" ϋ戶斤不,當该針座13整體 注射、广同U之内螺旋段114後’與針頭⑷-起藏入於該 待該推桿12之頸部125退至該儲藥空間m 圖 緣117處,左右扭動該推桿12使其頸部125折斷’如 蓋而可將其針頭141留置在注射筒11中,再將該針頭 回销毁。插人針碩牙孔13内’再吾人針筒回收裝置中進行收 ^明安全注射裝置之結構,具有以下之優點: 第—,使用過後之針頭141被收藏在注射筒n中不會掉 ’因此就不會產生有刺傷人體之危險發生,而且使用過後之 念射筒π、推桿12、針座]3以及針頭⑷都無法回收再使用, 石保醫療器材使用之安全性者。 第二,言亥針座13與該注射筒u間藉呈方螺紋形狀之内、 狄累、’、文&相螺合組接之形態’不但接合更為緊密,而且使注射 制土、'’十座13於製造時拔模較為容易,失敗率較小,可降低 :造:本’而習用之注射筒與針座設呈凸塊狀而邊緣為傾斜一 、或ϋ狀導引面之擋止部以及固定塊之結構設計,係採強 ^拔輪之方式,失敗率非常高’製品之品質無法穩定地控制, 致其有製造成本高的缺弊,利用發明之結構即得以完全克服 解決者。 200918112 弟二’本發明於該注射筒u其定位空間ιΐ2内又 :間:設置之定位部115’於相鄰之二―中間形成一 凹入空間11 6,而可供兮科汴】〇 # 3其所具有之該固持塊⑶族 ’=、適當之摩擦與抵持作用,使針座以組接於 i2=rw,於針座13上以及推㈣上之套糊' 出,不怕藥劑輕易滲流而 出,庄射使用時效果更佳。 =閱圖十與圖十—所示,係本發明之第二實施例之 針頭Μ 嶋包財樣2卜推胁針座… 二=;頭蓋25所組成’其與前述第-實施例之差別在 々、。茨庄射同21之定位处pE! 9 e μ 工間212與針頭穿孔如之距離較短而 處:=2U之前端,亦即接近於該針輸… 之推桿22、针座…針詞H徵設計,而其他 徵結構不變,本發明第二實 5員盍25 4各構件之特 23、針糊以及針頭之心射筒Μ與推桿22、針座 動作⑴ 針頭盍25寺各構件之相關組接位置以及連結 ΓΙΓ於本發明之第—實施例,並同樣能提供前述三點功 放,故在此不再贅述。 術相=:提1Γ轉動分離針頭之注射器,與其他習用技 、更具有下列之優點: 12 200918112 /宗上所述’本案不但在空間型態上確屬創新,並能較習用 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 要件线法提”請’懇冑f局核准本件發明專利申 3月案,以勵發明’至感德便。 【圖式簡單說明】 圖0 r 圖係本發明—較佳實施例之立體分解示意 圖二係圖—之平面剖視示意圖。 注射筒之後端往前推進 圖三為該推桿穿套該針座由該 之動作示意圖。 圖四為該推桿穿套該針座並 < ’王射同其針頭穿孔穿 出之平面組合暨剖視示意圖。 圖五則係於該圖四之針頭穿 分, 牙m t5亥針座上套接 "X、.且接套以組接針頭並蓋上 圖。 貝ι之千面組合暨剖視示意 圖六係圖四之局部外觀暨動作示意圖。 圖七係由第六圖其上端部往下俯視之示意圖。 圖八係反向旋轉該推桿以連動誃 ik ^ ,± - 6 Λ Λ< ^下而其固持塊 …亥注射同之疋位部分離之立體動作示意圖。 針頭留置在注射 之平面 筒内再將該針頭蓋反向插進難射筒其針頭穿孔處 圖九為折斷該推桿之頸部後將針座與 音 圖。 13 200918112 圖十係本創作另一較佳實施例注射筒之立體外觀分解 示意圖。 圖十一係圖十注射筒之平面組合剖視示意圖。 【主要元件符號說明】 11、 21注射筒 111、 212儲藥空間 112、 212定位空間 113、 213針頭穿孔 114、 214内螺旋段 115定位部 11 6凹入空間 11 7折斷邊緣 12、 22推桿 121頂推部 122對位部 1221導引面 12 3擋緣 124套環 1 2 5頸部 12 6肋條 127推片 14 200918112 1271箭頭 13、 23針座 131穿套部 132通道 133容置空間 134定位塊 1341導引面 135限位空間 136外螺旋段 137固持塊 14、 24組接套 1 41針頭 15、 25針頭蓋200918112 IX. Description of the invention: [Technical field of the invention] The device has a better friction when it is combined with the needle holder. The invention relates to a safety injection-injection in the used cylinder. It is easy to inject and force the effect, and its structure makes the manufacturing more [previous technology] With the advancement of technology and the advancement of medical technology, 'humanity for medical safety: importance! deeper-layer understanding' is also for medical treatment The use of the appliance is more careful, whether it is used at the time of use, or the handling process after use is also taken seriously, because the improper use of medical equipment, especially if it is inadvertently used in the human body, the damage is not only the party. The damage and impact of the material is not estimated! At present, the use of the injection device focuses on the prevention of repeated use and the problem of needle block injury, in addition to the destruction of the used injection device, so that the method is again provided for use, in the process of its destruction, more protection operation is required. The safety protection structure of the personnel' avoids the possibility that the medical staff may be stabbed when the used needle is removed and collected in a safe place. Therefore, the inventor of the present invention has a number of patents relating to safe injection polymerization, but still In view of the simplified structure of the installation of Annu, and the increase of the friction between the various components, the effect of the zebra tightening effect is to improve the spirit of excellence and continue to study. ~ "Summary of the Invention" The purpose of the present invention is to provide a retractable needle and to complete the syringe at the end of 200918112, after the needle cover is inserted or rotated, the needle can be inserted; After the inner use, the syringe with a smaller diameter can be used to separate the needle from the needle. The 颈部# can be used as a safety syringe. Mainly provides a simple structure and the assembly of each component is more tight with "' press the m in the injection device, the push device, the push pin, the needle seat..., the system. There is a note, ^ 4 items and a needle cover The composition of the j; the injection cylinder has a drug storage space such as the city #, the inside of the two unworked interiors of the right inner spiral section, the rear end of the rear convex one or two degrees with broken edges, in the drug storage The outer part of the outer end is reduced in the outer diameter shape and the work space, and the positioning part of the storage space is perforated by the positioning empty needle; the "position space is provided with a push on the inner peripheral surface thereof" Inside the cylinder, the top end is provided with a pushing portion having a smaller circular diameter, and the pushing The work of the department is set to a set of squares. There are a plurality of alignment parts around the outside, and the ring system is tightly placed on the wall of the drug storage space of the syringe to be connected below the collar. The segment is reduced by one of the circular diameters; the needle=one of the reduced diameter of the front end of the seat is the one of the narrowed diameter of the sleeve, and the outer part of the sleeve is extended, and the outer sleeve of the tooth is wrong. The needle is then covered by the needle and has two sides. The center of the sleeve is provided with a channel 'a valley space at the rear end of the channel', and a plurality of positioning blocks are protruded on the surface of the housing space. Phase 4 & between the blocks is formed with a - limit space 'according to the putter alignment 200918112 can be embedded in the periphery of the needle seat outside the heart 5 and has an outer spiral segment and is provided - the holding block corresponds to the injection body, (4) the inner screw knowing section and its positioning part; the first 4:: the upper structure 'make the needle seat group (4) the push rod of the pusher, is moved When the needle is perforated to the syringe, the inner spiral section of the needle holder is 蝉a, the drinking time is wide, and the holding block can be embedded. When the part between the injection parts is completed, the assembly operation of the tight card level is completed, and when the push rod is turned downward in the direction of the 4th spiral section, the needle holder can be interlocked to γ to be separated from the needle hole. (4) The neck of the push rod contacts the barrel with its broken edge f. The right plate moves the push rod to break the neck, and the needle seat and the needle on which the needle is placed are placed in the syringe. Finally, the needle cover is inserted back into the needle. [Embodiment] Please refer to Figure 1 for fgj - & - ., ^ " Figure 1 is not a safe syringe 10 of the present invention, which includes a syringe 丨丨, - push cup 12, a needle The seat 13 is composed of a needle 141 and a needle cover 15; wherein the structure of the main nozzle 11 is the same as that of the syringe in the first few applications of the present inventors, which is mainly a cylindrical object, and its central interior Forming a drug storage space in the outer portion of the front end of the drug storage space m is provided with a portion of the reduced outer diameter to form a positioning space 112, and the positioning space 112 is provided with a needle perforation (1), the needle piercing U3 and Connected with the drug (4) (1), and the drug storage is empty. (5° and one of the main thread shapes, the inner spiral section 114 is extended to the point of the nano-needle hole 113, and the positioning space 112 is provided with a plurality of triangular protrusions on the inner circumferential surface thereof at intervals of 200918112. The block-shaped positioning portion ιΐ5 and the adjacent-positioning portion 115 are formed with a recessed space 116 (please refer to FIG. 6 and FIG. 7), and the rear end of the drug storage space (1) is inward. The breaking edge 117' is further provided at one end of the note (4) 11 for pushing the piece 118 by one of the fingers of the hand; the pusher 12 is placed in the syringe n, and the top end is provided with a smaller _top _ 121' is located at the outer portion of the lower portion of the portion (2), and is provided with a plurality of aligning portions 122 having a rectangular convex shape, and the front ends of the aligning portions 122 are inclined at both sides of the central portion. a guide surface (10), and 扱.彖123 is disposed below the alignment portion 122, and the sleeve % 124 is sleeved between the alignment portion 122 and the retaining edge and the collar 124 is pressed against the The injection cylinder u is on the wall surface of the drug storage space (1), and in the lining of the lining 123, the section is narrowed to the diameter of the neck 125, which is used for twisting after the injection is completed. 12, the portion of the neck portion 125 or more may be placed in the main shot with the U; and the neck (2) is provided with a plurality of elongated ribs 126, at the end of the ribs 126 The hand 135 is arranged in an octagonal shape, and the opposite side of the two sides of the sheet is marked with a pointing arrow to the opposite side; the needle seat 13 is set at the front end thereof to reduce the circle The sleeve (3), the sleeve - the sleeve 139 is positioned on the recessed groove 138 thereof, and then passed through the syringe U, the needle through hole 113 is externally 'and according to the shape - the shape is similar - The set of sleeves is configured to be positioned on the sleeve portion 131, and a needle 141 is disposed on the sleeve 14200918112 in a manner of wearing or bonding, so that the center of the sleeve portion (3) is disposed. a passage 132, and a receiving space 133 ′ is disposed at a rear end of the passage 132 for positioning the device on the positioning space ι 2 of the syringe u. The accommodating space i33, the passage 132 and the needle 141 are communicated with each other. The medicine liquid contained in the drug storage space (1) of the syringe η can be passed from the needle through the one passage The head 14 Η main shot enters the body of the person to be injected; a plurality of positioning blocks 134 are arranged on the surface of the accommodating space (3), and a limit space 135 is formed in the adjacent two positioning block wars, and the positioning blocks are formed. The 134 series corresponds to the push (4). The shape of the aligning portion 122 is also formed in a rectangular convex shape, and the bottom end thereof is formed with a guide surface cut obliquely to the both sides, so that when it is assembled with the push rod 12 By the guidance of the (four) face 1341" 1221 'when the push rod 12 is pushed forward, the home position portion is fitted with the needle seat to fit in the space 135, the needle is completed. The outer circumference of the accommodating space 133 is provided with an outer spiral section 136 and a holding block 137. The outer spiral section 136 corresponds to the syringe. The inner spiral section is also square threaded, so that the needle seat 14 can be injected with the needle. The holder 137 is tightly screwed, and the holding block 137 which is formed by the needle holder 14 as a three (four) bump can be engaged with the syringe to be recessed into the space U6 by one of the adjacent positioning portions 115 to complete the positioning; The needle cover 15 is provided with a conical sleeve, which can be covered and worn for the injection=the outer end of the needle through hole 112 is assembled (4), 141 needle-free road directly outside and have a puncture hazard to the human body produces. According to the safety syringe 1 described above, please refer to FIG. 3, when the safety syringe 1G of the invention is used in 200918112, the needle holder i3 is first placed in the drug storage space m of the syringe 11, and The push rod 12 is pushed in by the rear of the needle holder 13, and the pair of (four) 122 correspondingly inserted into the limit position between the two adjacent positioning blocks 134 of the needle holder 13 is completed. 12 and driving the needle holder 13 forward, when the needle holder 13 is inserted through the syringe u and the needle through hole 113 thereof, the outer spiral portion 136 of the needle holder 13 is licked by the syringe The inner spiral segment m is screwed so that the needle holder 13 can be rotated forward. Referring to FIG. 4, the holding block 137 is abutted against the adjacent positioning portion of the syringe 11 116. (4) The sleeve 139 on the needle holder 13 is not positioned in the position of the syringe u, and the sleeve (124) on the push rod 12 is pressed against the wall of the syringe. μ保其其(4)全(四)晴; guide the turn (four) set in the needle seat 〖3, the wearing part 131 is worn by the injection part of the needle perforation 112, and then Close the needle cover, as shown in Figure 5. When the user wants to take the liquid medicine, the action is the same as that of the user, take the page cover /5 and insert the needle (4) into the medicine bottle (not shown). Directly pulling the push back back can draw the liquid into the drug storage space (1), because the needle f]3 has borrowed the external thread segment 136 and the structure of the holding, can be two, The setting position is in the syringe, and is not affected by the straight forward or backward movement of the push rod 12; and when the injection is completed, the push rod 12 is continuously advanced and the opposite position is added to the needle. The limit space of the seat 13]%, then the reverse 10 200918112 rotates the push rod 12 and interlocks the needle holder 13 to retreat in the direction of the spiral, so that the pot holding block 137 is separated from the recessed space 116, 'off the lake " Seto Jin not, when the needle seat 13 is integrally injected, the inner spiral section 114 of the same U and the needle (4) - the neck 125 that is hidden in the putter 12 is retracted to the storage space m At the edge 117, the push rod 12 is twisted left and right to cause the neck 125 to be broken off. The cover 141 can be left in the syringe 11 and then the needle is placed. Destruction. The structure of the safety injection device is carried out in the needle-recovering device of the human needle, and has the following advantages: First, the needle 141 after use is collected in the syringe n. It will not cause the risk of stabbing the human body, and the post-use cartridges π, push rod 12, needle holder 3 and needle (4) can not be recycled and reused, and the safety of Shibao medical equipment is used. Secondly, in the shape of the square thread between the needle seat 13 and the syringe u, the form of the combination of Dili, ', text & screwing' is not only more tightly joined, but also makes the injection soil, ''The ten-seat 13 is easier to draw at the time of manufacture, and the failure rate is smaller, which can be reduced: the original: the conventional syringe and the needle seat are convex, and the edge is inclined, or the sigmoid guide surface. The structure of the stopper and the fixed block is designed to adopt a strong pull-out method, and the failure rate is very high. The quality of the product cannot be stably controlled, so that it has the disadvantage of high manufacturing cost, and the structure of the invention is completely utilized. Overcome the solver. 200918112 The second invention of the invention is in the positioning space ιΐ2 of the syringe u: the positioning portion 115' is disposed in the middle of the adjacent two to form a concave space 11 6 and is available for the 兮科汴】〇# 3 It has the holding block (3) family'=, proper friction and resistance, so that the needle seat is connected to i2=rw, and the paste on the needle seat 13 and push (four) is out, not afraid of the medicine Seeping out, the effect is better when used. = Figure 10 and Figure 10 - showing the second embodiment of the present invention, the needle Μ 财 财 财 财 2 ... ... ... ... ... ... ... ... ... ... ... ... 二 二 二 二 ; ; ; ; ; ; ; ; ; ; ; ; ; ; 头In 々,.茨庄射同21 positioning pE! 9 e μ Workshop 212 and needle piercing distance is short: = 2U front end, that is, close to the needle input... Push rod 22, needle seat... H sign design, and other signs structure unchanged, the second real 5 members of the present invention 盍 25 4 special components 23, acupuncture and needle heart Μ Μ and putter 22, needle seat action (1) needle 盍 25 temple each The related assembly positions of the components and the connection are in the first embodiment of the present invention, and the foregoing three-point power amplifier can also be provided, and thus will not be described herein. Surgical phase =: 1) Rotating the syringe with separate needles, and other conventional techniques, has the following advantages: 12 200918112 / Zong Shang's 'This case is not only innovative in space type, but also can enhance the above multiple items. Efficacy, should be fully in line with the novelty and progressiveness of the statutory requirements of the line of law "please" 恳胄f Bureau approved this invention patent application for the March case, in order to invent 'to the sense of virtue. [Simplified illustration] Figure 0 r is a schematic cross-sectional view of the present invention - a perspective view of a preferred embodiment of the second embodiment of the present invention. The rear end of the syringe is advanced. Figure 3 is a schematic view of the operation of the pusher by the pusher. For the putter, the needle seat is worn and < 'the plane combination of the ejaculation and the needle piercing and the cross-sectional view of the needle. Figure 5 is the needle of the figure 4, the head of the tooth m t5 Connect "X,. and set the needle to assemble the needle and cover the picture. The combination of the appearance and the schematic diagram of the six-figure diagram of the six-face combination of the figure and the cross-section of the figure. Figure 7 is from the upper end of the sixth figure Below is a schematic view. Figure 8 is a reverse rotation The push rod is linked to the 誃 ik ^ , ± - 6 Λ Λ < ^ and its holding block... The injection is separated from the squatting part of the three-dimensional action diagram. The needle is placed in the plane tube of the injection and the needle cover is inserted backwards. Figure 9 shows the needle seat and the sound map after the neck of the push rod is broken. 13 200918112 Figure 10 is a schematic exploded view of the syringe of another preferred embodiment of the present invention. Schematic diagram of the planar combination of the ten injection cylinders. [Main component symbol description] 11, 21 syringe 111, 212 drug storage space 112, 212 positioning space 113, 213 needle perforation 114, 214 inner spiral segment 115 positioning portion 11 6 Recessed space 11 7 broken edge 12, 22 push rod 121 urging portion 122 aligning portion 1221 guiding surface 12 3 rim 124 collar 1 2 5 neck 12 6 rib 127 push piece 14 200918112 1271 arrow 13, 23 needle Seat 131 wearing sleeve 132 channel 133 accommodating space 134 positioning block 1341 guiding surface 135 limiting space 136 outer spiral section 137 holding block 14, 24 set of sleeves 1 41 needles 15, 25 needle cover

1515

Claims (1)

200918112 十、申請專利範圍: I. 一種安全注射器,包括: 一注射筒,直呈古 、 諸藥空間,於該儲藥空間之前端内部 5又有—内螺旋段,於 、4儲樂空間之前端外部則縮小其外徑 形成一定位空間, 藥空間連通;…空間處穿設-針頭穿孔與該儲 ;推係穿置在該-射筒内,該推桿之頂端設有一頂推 ^:頂推部之下方於外部·設有複數個對位部,並接 者套设一套環,使 亥套%係迫緊在該注射筒其儲藥空間之 土面上,接在該套淨夕 一 、 5又有一段縮小圓徑之一頸部; 針座,係裝置在該注射筒 設縮小圓徑之工曰,而以其前端所 一針頭以及套蓋—針 # 要。又 .十碩-者,於該穿套部之中心穿設—通 t,於該通道之後端接設— 面凸設有複數個定位塊,_ “置空間之表 限位*門 H疋位塊間則形成有— 二:據以供該推桿之對位部可以“,該針座於其 二工間之外周圍設有一外螺旋段與-固持塊,可與該注 十筒其内螺旋段緊密旋合, 〜 定位部相卡抵而定位者。〃⑽塊則可與該注射筒其 2. Γ請專利範圍第1項所述之安全注射器,其中該該注射 丹之内螺紋❹及該針座之外料段料方螺纹者 如旁請專利範圍第1項所述之安全注射器器,其中該抑 16 3· 200918112 之對位部係設呈其前端為尹央向兩側斜傾之㈣面。 4·=請專利範圍帛1項所述之安全注㈣器,其中該針座 之順則對應設呈其底側為中央向兩側傾斜之钭面。 5· 請第1稍述之安衫射器,其中該針頭传 =一組接套申,而該組接套係恰得以對應套設於該針 座其牙套部上定位者。 6. Π;"專利範圍第1項所述之安全注射器,其中該注㈣ 空間於其内部周面設置有複數之定位部。 1二請專利範圍第1項所述之安全注射器,其中該針座於 二之外周圍再設有一固持塊’可與該注射筒其定 °卩相卡抵而定位者。 8 利範圍第7項所述之安全注射器,其中該注射筒 :之定位部,係呈間隔設置之三角形凸塊,而該針座 中間:塊亦没呈三角形狀而可卡抵於間隔設置之二定位部 17200918112 X. Patent application scope: I. A safety syringe, comprising: a syringe, which is straight into the ancient and various medicine spaces. In the front end of the drug storage space, the interior 5 has an inner spiral segment, and the 4 storage space The front end of the front end is reduced in outer diameter to form a positioning space, and the medicine space is connected; the space is pierced - the needle perforation and the storage; the pusher is placed in the -shooting cylinder, and the top end of the push rod is provided with a pushing ^: Below the ejector, there are a plurality of alignment parts, and a set of rings is arranged, so that the quilt is tied to the soil of the drug storage space of the syringe, and the net is attached. On the other day, there is a section of the neck that narrows the diameter of the circle; the needle seat is equipped with a work for reducing the diameter of the circular cylinder in the syringe, and a needle at the front end and a cover-needle. In addition, the ten masters are placed in the center of the wearing part—through t, and the terminal is connected after the channel—the surface is convexly provided with a plurality of positioning blocks, _“the space table limit* the door H position Between the blocks is formed - two: according to the alignment portion of the push rod can be ", the needle holder is provided with an outer spiral section and a holding block around the outside of the second working chamber, and can be placed inside the ten cylinder The spiral section is tightly screwed, and the positioning part is stuck against the locator. The 〃(10) block can be used with the syringe 2. The safety syringe described in claim 1 of the patent scope, wherein the injection of the inner thread of the dan and the thread of the material outside the needle seat are as patented The safety injector according to the above item 1, wherein the contra-angle portion of the restraining portion is a (four) surface whose front end is obliquely inclined to both sides. 4·=Please refer to the safety note (4) in the scope of the patent, in which the needle seat is arranged to have a bottom surface whose center side is inclined to both sides. 5· Please refer to the first section of the smear, where the needle is transmitted as a set of sleeves, and the set of sleeves is positioned correspondingly to the sleeve on the socket. 6. The safety syringe of claim 1, wherein the space of the note (4) is provided with a plurality of positioning portions on its inner circumferential surface. The safety syringe of the first aspect of the invention, wherein the needle holder is further provided with a holding block around the circumference of the needle holder, and the holder can be positioned against the syringe. 8. The safety syringe of claim 7, wherein the positioning portion of the syringe is a triangular protrusion arranged at intervals, and the middle portion of the needle holder is not triangular and can be snapped to the interval. Two positioning part 17
TW96138867A 2007-10-17 2007-10-17 Safety syringe device with separable needle stem by turning back TWI334356B (en)

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Application Number Priority Date Filing Date Title
TW96138867A TWI334356B (en) 2007-10-17 2007-10-17 Safety syringe device with separable needle stem by turning back

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TWI334356B TWI334356B (en) 2010-12-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI501794B (en) * 2009-05-05 2015-10-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI501794B (en) * 2009-05-05 2015-10-01

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