200812660 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種「安全型牙科暨疫苗針筒結構」， 尤指一種於注射完畢時，藉由一套設於筒體外部之安全套 筒設置，將筒體向後拉回’使安全套筒緊密套置定位二筒 體前端與針頭外部且無法再移動使用，以達安全功效者同 【先前技術】200812660 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a "safety dental and vaccine syringe structure", and more particularly to a safety sleeve disposed outside the cylinder when the injection is completed. Set, pull the cylinder back back' so that the safety sleeve is tightly nested to position the front end of the two cylinders and the outside of the needle and can no longer be used for safety purposes. [Prior Art]
按，目前-般牙科在進行牙周病治療、拔牙、根管a 療^植牙粒人π腔的醫療作業時，多半會崎筒注射ς 醉藥劑於患者的牙齦，使麻藥進入軟組織，以降低患者於 治療過程中的疼痛感。峨著祕技術與衛生觀^提升 ’現代醫療院所-般多普遍採使用—次即丟棄之抛棄式 ^且於針筒上再套上安全防護蓋體，以防止針頭外漏而 I傷人體，並避免針筒再次使用。 言月配=參閱第九及十圖所示，係為習知牙科用的麻醉 u射針筒c結構，其包括—含有拉柄7 3之針筒7 〇、 一針頭7 2 1、一組設於針筒7 〇内之藥劑管7 6、一推 安全保護套管8〇，其中，該針筒70前端外 ，设有一凸塊71，於針筒70前端套接-具雙頭針7 2 1之針座7 2 ;該拉柄7 3係為具大、小徑部7 3工、 之中空短圓筒體’使前端大徑部7 3 1螺接於針筒 〇末端’且其間套設有—_7 4，該小徑部7 λ 導孔7 3 3可令該推桿7 5之桿體穿伸並伸人針筒7 〇 5 200812660 ㈣推壓藥劑管76之活塞761，使藥劑注入人體；該 :全保護套管8Q其外周相對於針筒7◦之凸塊71位置 处開設一導引槽8 1，該導引槽8 1後端部人口處設置一 凹陷曲段部8 2，並於該區段部8 2之後設有一可彈性變 ，之擋止部8 3及位於其後之—卡止槽8 4 ;於注射針筒 7 0使用後，先將針筒7 〇往後拉回，令保護套管8 〇往 前伸出，而將針頭721往内縮，使針筒7〇上之凸塊？ 1沿導引槽8 1而由前端部進人後端部，再經由變形撐止 部8 3卡止於卡止槽84内而使針筒7 〇不能再移出，以 確保注射針筒7 〇之使用安全者。 【發明内容】（所欲解決之技術問題） 惟，該習用牙科麻醉劑注射針筒之針筒凸塊藉安全保 護套管導引槽之導引與嵌卡定位結構中，及該拉柄之結構 與組設方式簡單’料鬆脫損壞，本發明人認為 良之空間者。 (解決問題之技術手段） 本發明人有鑑於此，乃憑恃著長期對於針筒之研究及 融會貫通之構思’而發明出—種安全型牙科暨疫苗針筒幹 構，其主要係於筒體外套設有—安全套筒，該筒體前端= 設有一擋止部，其係具有複數個與刮槽相接之肋片，且其 中兩相對之肋片向外凸設-卡止肋，另於安全套筒末端對 應肋片之卡勾肋形狀具有複數個定位槽孔，於注射完畢 200812660 ，將筒體向後拉回，使筒體前端之卡止肋與安全套筒末端 之定位槽孔形成穩固嵌卡定位，且筒體無法再移出使用， 同時該針頭隨筒體之拉收而容收於安全套筒中，以提供一 次性使用與操作便利之安全型牙科暨疫苗針筒結構功效 者。 (對照先前技術之功效） ^ 茲由以上說明得知，本發明相較先前技術，確可達到 ⑩如下之若干功效： 1、 具一次性使用之安全功效：由於本發明針筒結構 之筒體外部套設有一安全套筒，可於注射完畢後，將筒體 向後拉回，使筒體前端之卡止肋與安全套筒末端之定位槽 孔相互崁卡固定，且針頭得隨筒體之拉收而容收於安全套 筒中，筒體無法移出再使用，以達一次性使用之安全功效。 2、 操作簡單：由於本發明於注射完畢後，直接將筒 φ 體向後拉回，即可使筒體前端卡止肋與安全套筒末端定位 - 槽孔準確地崁固定位，使針頭容收於安全套筒内，確具操 . 作簡單便利之功效者。 3、 據穩固結合之拉柄部：由於本發明之拉柄部藉一 固定座前端與筒體末端接設，該固定座末端可供一拉柄套 設，再將推桿穿伸一固定套後並穿套一套筒與一彈性元件 ，使推桿穿伸入筒體，並藉固定套接設固定於固定座上， 俾以提供一具穩固結合之拉柄部者。 4、 可據以應用於疫苗針筒：本發明之筒體卡止肋與 200812660 安全套狀位槽孔間之嵌卡固定設計，係可據以應用實施 於一般疫苗針筒結構，同樣可達-次性使用之安全功效者。 5、具組裝導引之功效：由於本發明之牙科針筒筒體 或疫苗針胃套管與好套㈣，财可相錢卡之肋條與 導槽，俾可提供組裝時之便利導引功效者。 一 【實施方式】 、 4參閱第—〜三圖所示，係為本發明安全型牙科暨疫 籲苗針筒結構，其構成至少包括—具容室以供容納藥劑管3 0之筒體1 0、-炭設於筒體前端以供針座2◦套設之套 座1 3、一穿設於針座2 〇之雙向針頭2 i、一設於筒體 1 0末端之拉柄部4 0及一推桿5 0所組成，其中，該雙 向針頭2 1具有一可刺穿藥劑管3 〇封閉端的刺針及一往 前凸伸的注射針，令該推桿5 〇伸入筒體1 〇内而推壓藥 劑管3 0之塞體3 1，使藥劑3 2注入人體；本發明之主 要改良在於： _ 該筒體10，其前端具有一小徑部11，而後端具有 一大径部1 5，該小徑部1 ;[中央具有穿孔1 2，使小徑 部1 1可供針頭套座1 3嵌設，於筒體2 0前端突設有一 擋止部1 4，其係具有複數個與剖槽i 4 i相接且兩兩相 對之肋片1 4 2、1 4 5，其中該兩相對且較寬之肋片工 4 1係向外凸設一卡止肋1 4 3，該卡止肋1 4 3近筒體 1 0内侧設一斜切向内之切角，形成一尖斜卡制端緣1 4 4，另一兩兩相對之肋片1 4 5其外側中央橫設一組間隔 8 200812660 設置之長肋條1 4 6 ;該大徑部1 5外部設有螺紋2 6者 ，·另於筒體1 0具有兩相對設之開口槽2 7，俾便利藥劑 管3 0置設於筒體1 〇申者； η 該拉柄部4 0，係包括一固定座4 2、一拉柄4 2、 -套筒4 3、-彈性元件4 4與-固絲4 5所組成，·該 固定座4 1，係為-中空短套筒體，套筒前端具有一大徑 邛4 1 1，其6又有内螺紋4 12以供鎖緊接設於筒體1 〇 末端’套筒末端具有-小徑部4 ! 3，其設有外螺紋4工 4，且於大徑部4 1 1與小徑部4 1 3内部之間設有一突 園4 1 5 ’·該拉柄4 2，其可為方形、圓形、擴圓形或其 匕片體型狀’且其兩端係可具有適弧者，於拉柄4 2 中央設有—套孔4 2 1，以可套設於固定座4 1小徑部4 1 3上’且另端受大獲部4工工抵頂者；該套筒4 3，係 呈一中空筒狀，其後側開口處分別具有内、外凸緣4 3 1、 4 3 2 ’將套筒4 3前端由小徑部4 1 3穿套人固定座4 ^内中間突圍41 5處’使其前端恰抵頂於藥劑管3 〇末 t IS套4 5 ’係為一端具開口 4 5 1之套蓋體，該 設有内螺紋4 5 2 ’且於套蓋另側端緣處 ^ 3，其係將該推桿46穿套該彈性元件4 於固定套穿孔4 5 3後，將固定套45鎖緊接設 入套之小徑部413上，且使推桿46前端穿伸 3=^頂tn件44提供套筒43與藥劑管 7者；頂按效果，再於推桿4 6末端鎖接一屢柄4 200812660 ^ 一安全套筒5〇,係為一中空筒體狀，其前端處向内 5又有突緣5 1，該突緣5 1與筒壁間凹設有-肋槽5 2， 且肋槽5 2與筒壁間具有適當斜度，另於套筒5 〇末端筒 壁内適當位置處設有一對應筒體工〇兩卡止肋丄4 3形狀 $兩相對定位槽孔5 3，另於套筒5 ◦筒壁對應筒體1 〇 ^ 别端兩長肋條1 4 6位置設有兩導槽5 4 ; 兄其係將安全套筒5 0套設於筒體1 0外侧，使筒體工 φ 〇如知肋片1 4 2之卡止肋1 4 3恰嵌設於安全套筒5 〇 之肋槽5 2内，請配合參閱第三A圖所示，使兩肋片工4 6外侧之長肋條1 4 6對應嵌入安全套筒5 〇内部之兩導 槽5 4内，以達組裝時之導引功效，俾便利該筒體工〇與 安全套筒5 0相套設組裝結合者； 藉由以上構件組成，請參閱第四A〜B圖所示本發明 之動作示意圖，其係壓下壓柄4 7以推動該推桿4 6，使 推桿4 6前端進入筒體1 〇内並推動藥劑管3 〇之塞體3 • 1 士以使藥劑3 2由針頭2 1施打入人體，當藥劑施二完畢 犄，拉動拉柄4 2將筒體1 〇向後拉回，則筒體丄〇前端 ’ 肋片1 4 2之卡止肋1 4 3沿斜度脫出肋槽5 2，由於卡 止肋1 4 3受筒體1 〇内壁壓迫，可藉肋片丄4 2之剖槽 1 4 1設計，以可彈性壓縮於肋片i 4 2與筒體小徑部工 1間之容伸空間内，隨筒體丄〇之向後拉回動作使^止肋 1 4 3至疋位槽孔5 3處時’由於卡止肋1 4 3不受何辟 壓迫而可彈性復位且恰嵌卡入該定位槽孔5 3内，形成穩 固嵌卡定位，使筒體1 〇無法再移出使用，同時該針頭^ 200812660 1容收於安全套筒5 〇内，避免針頭2 i扎傷人，以達一 次使用之安全性者。 本發明另一實施例請參閲第五〜七圖所示，其係可將 本發明之安全套筒結構據以應用實施於一般疫苗針筒B結 構者，其大致係包括有一筒體6 〇、一套設於筒體6 〇前 端之針頭6 2與-穿伸於筒體6 Q内之推桿6 3所組成， 其係於疫苗針筒6 〇外側套設一套管6 4，其末端設有嵌 緣6 4 1以可嵌套於筒體6 〇末端突伸之拉柄6 1處，於 套管6 4前端設有複數個與剖槽6 4 2相接且兩兩相對之 肋片643、646’其中該兩兩相對且較寬之肋片6 4 3向外凸設一卡止肋6 44，且其近筒體工〇内侧向内斜 切形成一卡制端緣β 4 5，另一兩兩相對之肋片6 4 6 其二侧中央橫設-組長肋條6 4 7 ;於套管6 4外侧套設 一安全套筒6 5 ’該安全套筒6 5同樣係具有前端内緣之 肋槽6 5 1與末端對應卡止肋6 4 4形狀之兩相對定位槽 孔6 5 2 ’並於㈣對應套管6 4前料長肋條6 4 7 = 置處馨設有兩導槽6 5 3，以提供套管6 4與安全套筒6 5間之套設組裝導引功效者；注射完畢時，如第八a〜八 B圖所示’將筒體6 〇向後拉回，將套管6 4前端卡止肋 6 4 4與安全套筒6 5末端之定位槽孔6 5 2相互嵌卡穩 固定位，使筒體6 Q無法再移出使用，錢針頭6 2容^ 其中’以提m陳狀安全型疫苗針筒6結構者。 綜上所述，本發明之「安全型牙科暨疫苗針筒結構」， 係提供一套設於針筒筒體外侧之安全套筒設計，直可適用 11 200812660 於牙科暨疫苗針筒結構，於筒體前端突設有複數具 =肋片，且該安全套筒末端設有複數個對應卡止肋形 定位槽孔’於注射結束時，將筒體向後拉回，使針頭p 體之拉收而容收於安全套筒内，且使筒體前端 = 安全套筒末端之定位槽孔形成相互褒卡固定，筒體無法力再 ‘移^吏用’以提供具-次性使用之安全型牙 •請料二開使用，誠符合發明專利中請要件，懇 月，局明鑑’早日准予專利，至為感禱。 用者’ m所述乃是本發明之具體實施立即所運 用t技術原理，若依本發明之構想所作之改變，1所產Γ =作用仍未超出說明書及圖示所涵蓋之時所S 在本發明之範圍内，合予陳明。 ㈣f均應 【圖示簡單說明】 第二圖 第三圖 第一圖：係為本發明針筒結構之立體外觀圖。 係為本毛明針筒結構之立體分解圖。 ’系為本發明針筒結構之組合面。 第二=為本發明針筒結構之局部組合截面圖。 . 係為本發明針筒結構之動作剖面圖。 第六圖 第七圖 弟五圖.係為本發明另一實施例之立體外觀圖。 係為本發明另一實施例之立體分解圖。 ，為本發明另一實施例之組合剖面圖。 ㈣：係為本發明P實施例之動作剖面圖。 12 200812660 第九圖··係為習知針筒結構之立體分解圖。 第十圖：係為習知針筒結構使用狀態之平面圖。According to the current dental surgery, when performing periodontal disease treatment, tooth extraction, root canal a treatment, and granule treatment of granules, most of them will be injected with sputum into the patient's gums, so that the anesthetic enters the soft tissue. Reduce the pain of the patient during the treatment. Focus on the secret technology and health concept ^ Improve the 'modern medical institution - the most common use - the disposable discarding type ^ and put a safety cover on the syringe to prevent the needle from leaking and I hurt the human body And avoid using the syringe again.言月配=refer to the ninth and tenth drawings, which is a conventional anesthesia u-needle cylinder c structure, which comprises a syringe 7 〇 containing a handle 7 3 , a needle 7 2 1 , a group The medicine tube 7 6 disposed in the syringe 7 、, a push protection sleeve 8 〇, wherein the front end of the syringe 70 is provided with a bump 71, which is sleeved at the front end of the syringe 70 - with a double-ended needle 7 2 1 needle seat 7 2 ; the handle 7 3 is a hollow short cylindrical body having a large and small diameter portion 7 3, and the front end large diameter portion 7 3 1 is screwed to the end of the syringe barrel and The sleeve is provided with -_7 4, the small diameter portion 7 λ guiding hole 7 3 3 can extend the rod of the push rod 7 5 and extend the needle barrel 7 〇 5 200812660 (4) push the piston 761 of the medicine tube 76, so that The medicament is injected into the human body; the full protective sleeve 8Q has a guiding groove 8 at a position relative to the protrusion 71 of the barrel 7◦, and a recessed section is arranged at the rear end of the guiding groove 8 1 . 8 2, and after the section portion 8 2 is provided with an elastically deformable portion 8 3 and a locking groove 8 4 located therebelow; after the injection syringe 70 is used, the syringe 7 is first used. Pull back and pull the protective sleeve 8 forward. Retracted into the needle 721, so that the bump cylinder 7〇? 1 is inserted into the rear end portion from the front end portion along the guiding groove 81, and then locked in the locking groove 84 via the deformation stopping portion 83 to prevent the syringe 7 from being removed again to ensure the injection syringe 7 The use of security. SUMMARY OF THE INVENTION (Technical problem to be solved) However, the cylindrical projection of the dental anesthetic injection syringe is guided by the guiding sleeve of the safety protection sleeve and the card positioning structure, and the structure of the handle It is simple to set up the method, and the inventor thinks that the space is good. (Technical means for solving the problem) The present inventors have invented a safe dental and vaccine syringe dry structure based on the long-term conception of the syringe and the integration of the syringe, which is mainly used in the barrel jacket. a safety sleeve is provided, and the front end of the cylinder body is provided with a stopper portion having a plurality of ribs which are in contact with the scraping groove, and two opposite ribs are outwardly convexly-locking ribs, and The end of the safety sleeve has a plurality of positioning slots corresponding to the rib shape of the rib. After the injection is completed, the pipe body is pulled back backwards, so that the locking rib at the front end of the barrel and the positioning slot at the end of the safety sleeve are formed stably. The card is positioned and the cylinder can no longer be removed for use. At the same time, the needle is received by the cylinder and received in the safety sleeve to provide a safe and convenient dental and vaccine syringe structure for single use and operation. (Compared with the efficacy of the prior art) ^ As apparent from the above description, the present invention can achieve several effects as follows according to the prior art: 1. Safety effect with one-time use: due to the barrel of the syringe structure of the present invention The outer sleeve is provided with a safety sleeve, and after the injection is completed, the cylinder body is pulled back backward, so that the locking rib at the front end of the cylinder body and the positioning slot hole at the end of the safety sleeve are clamped together, and the needle has to follow the cylinder body. Pulled and received in the safety sleeve, the barrel can not be removed and reused, in order to achieve the safety effect of one-time use. 2, the operation is simple: Since the invention directly pulls the cylinder φ body back after the injection is completed, the front end locking rib of the cylinder body and the end of the safety sleeve can be positioned - the slot hole is accurately fixed, so that the needle is received In the safety sleeve, it is a simple and convenient function. 3. According to the handle portion of the stable combination, since the handle portion of the present invention is connected to the end of the cylinder body by a front end of the fixing seat, the end of the fixing seat can be sleeved by a pulling handle, and then the push rod is inserted through a fixing sleeve. And a sleeve and an elastic member are put into the sleeve, and the push rod is inserted into the cylinder body, and is fixed to the fixing seat by a fixing sleeve, so as to provide a stable joint. 4, can be applied to the vaccine syringe: the cartridge locking rib of the present invention and the 200812660 condom-like slot between the card fixation design, can be applied according to the general vaccine syringe structure, the same can be - The safety function of sub-use. 5, with the effect of assembly guidance: due to the dental syringe barrel or vaccine needle casing and the good set (four) of the present invention, the ribs and guide grooves of the money card can provide convenient guiding effect during assembly. By. [Embodiment] 4, as shown in the first to third figures, is a safety type dental and vaccination syringe structure of the present invention, which comprises at least a chamber 1 for containing a container 3 0, - a carbon sleeve is arranged at the front end of the cylinder for the socket 2 ◦ sleeve, a two-way needle 2 i is inserted through the needle seat 2 、, and a handle portion 4 is provided at the end of the cylinder 10 0 and a push rod 50, wherein the two-way needle 21 has a lancet piercing the closed end of the medicinal tube 3 and a forwardly projecting injection needle, so that the push rod 5 protrudes into the barrel 1 The body 3 1 of the drug tube 30 is pushed into the body to inject the agent 3 2 into the human body; the main improvement of the present invention is: _ the barrel 10 has a small diameter portion 11 at its front end and a large diameter at the rear end The portion 1 5, the small diameter portion 1; [the center has a perforation 1 2, the small diameter portion 1 1 is provided for the needle hub 13 , and a stopper portion 14 is protruded from the front end of the cylinder 20 There are a plurality of ribs 1 4 2, 1 4 5 which are opposite to the slot i i i and which are opposite to each other, wherein the two opposite and wider ribs 41 are outwardly convexly provided with a locking rib 1 4 3, the locking rib 1 4 3 The inner side of the cylinder 10 is provided with a chamfered inward chamfer to form a sharply inclined end edge 14 4 , and the other two opposite ribs 1 4 5 are disposed at the outer center of the group with a spacing 8 200812660 The long rib 1 4 6 ; the large diameter portion 15 is provided with a thread 26 on the outside, and the cylindrical body 10 has two opposite open slots 2 7 , and the convenient medicine tube 30 is disposed in the cylinder 1 〇 The shank portion 4 0 includes a fixing base 4 2, a pull handle 4 2, a sleeve 4 3, an elastic member 4 4 and a fixing wire 45, and the fixing seat 4 1, is a hollow short sleeve body, the front end of the sleeve has a large diameter 邛 4 1 1, and 6 has an internal thread 4 12 for locking connection at the end of the barrel 1 ' end of the sleeve has a small The diameter portion 4! 3 is provided with an external thread 4, and a protrusion 4 1 5 '· the handle 4 2 is provided between the large diameter portion 4 1 1 and the inner portion of the small diameter portion 4 1 3 It is a square, a circular shape, an expanded circular shape or a slab shape thereof, and the two ends of the handle can have an appropriate arc. The center of the handle 4 2 is provided with a sleeve hole 4 2 1 so as to be sleeved on the fixing seat 4 1 small diameter portion 4 1 3 upper 'and the other end is received by the large portion 4 workers; the sleeve 4 3, The utility model has a hollow cylindrical shape, and has an inner and outer flanges 4 3 1 and 4 3 2 2 at the rear side opening respectively. The front end of the sleeve 4 3 is passed through the small diameter portion 4 1 3 and the inner fixing seat 4 5 places 'so that the front end is just above the top of the medicament tube 3 t IS sleeve 4 5 ' is a sleeve body with an opening 4 5 1 at one end, which is provided with an internal thread 4 5 2 ' and at the other side of the cover The edge is ^3, after the push rod 46 is put on the elastic member 4 through the fixing sleeve through hole 4 5 3 , the fixing sleeve 45 is locked and connected to the small diameter portion 413 of the sleeve, and the front end of the push rod 46 is The extension 3=^ top tn member 44 provides the sleeve 43 and the medicine tube 7; the top pressing effect, and then the end of the push rod 46 is locked with a double handle 4 200812660 ^ A safety sleeve 5〇, is a hollow tube In the shape of the body, the front end is inwardly 5 and has a flange 5 1. The flange 5 1 is recessed with the rib groove 5 2 between the cylinder wall, and the rib groove 5 2 and the cylinder wall have appropriate inclination, and The corresponding position of the sleeve 5 〇 end cylinder wall is provided with a corresponding cylinder work 〇 two locking ribs 3 4 3 shape $ two opposite positioning slots 5 3 , and the sleeve 5 ◦ cylinder wall corresponding to the cylinder 1 〇 ^ Two long ribs at the end of the 1 4 6 position are provided with two guide grooves 5 4 ; The safety sleeve 50 is sleeved on the outer side of the cylinder 10, so that the cylinder φ, such as the locking rib 1 4 3 of the rib 1 4 2, is embedded in the rib groove 5 2 of the safety sleeve 5 Please refer to the third A picture, so that the long ribs 146 on the outer side of the two ribs 4 6 are correspondingly embedded in the two guide grooves 5 4 inside the safety sleeve 5 ,, so as to achieve the guiding effect during assembly.俾 Facing the assembly of the cylinder work piece and the safety sleeve 50 phase assembly; by the above components, please refer to the action diagram of the present invention shown in the fourth A to B drawings, which is used to press the lower handle 47 7 To push the push rod 4 6 so that the front end of the push rod 4 6 enters the barrel 1 and pushes the body 3 of the medicament tube 3 to make the medicament 3 2 into the human body by the needle 2 1 After the completion of the second step, pulling the handle 4 2 pulls the cylinder 1 〇 back, and then the locking rib 1 4 3 of the front end of the barrel 脱 ribs detaches the rib groove 5 2 along the slope, due to the locking The rib 14 4 is pressed by the inner wall of the cylinder 1 and can be designed by the slot 141 of the rib 丄 4 2 so as to be elastically compressible to the space between the rib i 4 2 and the small diameter portion of the cylinder 1 Inside, pull back with the cylinder When the locking rib 1 4 3 is at the position of the clamping slot 5 3 , the locking rib 1 4 3 can be elastically reset and just snapped into the positioning slot 5 3 to form a stable embedded card. Positioning, so that the cylinder 1 〇 can no longer be removed, and the needle ^ 200812660 1 is accommodated in the safety sleeve 5 ,, to avoid the needle 2 i tied to hurt people, in order to achieve a safety of use. For another embodiment of the present invention, please refer to the fifth to seventh embodiments, which can be applied to the general vaccine syringe B structure according to the application of the safety sleeve structure of the present invention, which generally includes a cylinder 6 〇 a set of needles 6 2 disposed at the front end of the barrel 6 and a push rod 6 3 extending through the barrel 6 Q, which is sleeved on the outer side of the vaccine syringe 6 and has a sleeve 6 4 The end is provided with a rim 6 4 1 so as to be nested at the handle 6 1 protruding from the end of the barrel 6 , and a plurality of ribs are formed at the front end of the sleeve 6 4 and are opposite to each other. The strips 643, 646', wherein the two opposite and wider ribs 643 protrude outwardly from a locking rib 6 44, and the inner side of the tubular body is chamfered inward to form a snap edge β 4 5, the other two pairs of opposing ribs 6 4 6 the two sides of the two sides of the horizontal erection - group length ribs 6 4 7; outside the casing 6 4 sleeve a safety sleeve 6 5 'The safety sleeve 6 5 also has The rib groove 6 5 1 at the inner edge of the front end and the corresponding locking rib 6 4 4 in the shape of the end are oppositely positioned with the slot hole 6 5 2 'and (4) corresponding sleeve 6 4 front material long rib 6 4 7 = Two guide grooves 6 5 3 to provide the sleeve 6 4 and the safety sleeve 6 5 sets the assembly guide effect; when the injection is completed, as shown in the eighth a to eighth B diagram, the cylinder 6 〇 is pulled back, and the sleeve 6 4 front end locking rib 6 4 4 and the safety sleeve 6 5 positioning slot 6 5 2 are embedded in the fixed position, so that the cylinder 6 Q can no longer be removed for use, the money needle 6 2 Rong ^ which 'to make m-shaped safety vaccine needle The structure of the cylinder 6 is. In summary, the "safety dental and vaccine syringe structure" of the present invention provides a set of safety sleeves disposed on the outside of the barrel of the syringe, which can be applied to the dental and vaccine syringe structure of 11 200812660. A plurality of ribs are protruded from the front end of the cylinder, and a plurality of corresponding locking rib-shaped positioning slots are arranged at the end of the safety sleeve. At the end of the injection, the cylinder is pulled back backward, so that the needle p body is pulled. It is accommodated in the safety sleeve, and the positioning hole of the front end of the cylinder = the end of the safety sleeve is formed to be mutually clamped, and the cylinder can not be used for "removing" to provide a safety type with secondary use. Tooth • Please use the second open, in accordance with the requirements of the invention patent, Hao Yue, Bureau Ming Jian 'as early as the patent, to the pray. The user's description is based on the t-technical principle immediately applied to the specific implementation of the present invention. If the change is made according to the concept of the present invention, the effect of 1 production Γ = does not exceed the time covered by the specification and the illustration. Within the scope of the present invention, Chen Ming is incorporated. (4) f should be [Simplified illustration] Second Figure Third Figure First: is a three-dimensional appearance of the syringe structure of the present invention. It is an exploded view of the structure of the Maoming syringe. ' is the combination surface of the syringe structure of the present invention. Second = a partial combined sectional view of the syringe structure of the present invention. Is a cross-sectional view of the action of the syringe structure of the present invention. Figure 6 is a perspective view of another embodiment of the present invention. It is a perspective exploded view of another embodiment of the present invention. Is a combined sectional view of another embodiment of the present invention. (4): A cross-sectional view showing the action of the embodiment of the present invention P. 12 200812660 The ninth figure is an exploded view of a conventional syringe structure. Figure 10: A plan view showing the state of use of a conventional syringe structure.
安全型牙科針筒結構 安全型疫苗針筒結構 【主要元件符號說明】 (本發明）Safety dental syringe structure Safety vaccine syringe structure [Main component symbol description] (Invention)
A B 1 0 · · · ·筒體 12····穿孔 1 4 · · · ·檔止部 1 4 2 · · ·肋片 1 4 4 · · ·卡制端緣 1 4 6 · · ·肋條 1 6 · · · ·螺紋 2 0 · · · ·針座 3 0 · · · ·藥劑管 3 2 · · · ·藥劑 4 0 · · · ·拉柄部 411···大徑部 413···小徑部 415···突圍 4 2 1 · · ·套孔 4 3 1 · · ·内凸緣 4 4 · · · ·彈性元件 4 5 1 · · ·開口 11·· ••小徑部 13·· ••套座 14 1· ••剖槽 14 3· ••卡止肋 14 5· ••肋片 15·· ••大徑部 17·· ••開口槽 2 1·· ••雙向針頭 3 1·· ••塞體 4 1·· ••固定座 4 12· ••内螺紋 4 14· ••外螺紋 4 2·· • •拉柄 4 3·· ••套筒 4 3 2· ••外凸緣 4 5·· ••固定套 4 5 2· ••内螺紋 13 200812660AB 1 0 · · · ·Tube 12····Perforation 1 4 · · · · Stopper 1 4 2 · · · Rib 1 4 4 · · · Carding edge 1 4 6 · · · Rib 1 6 · · · · Thread 2 0 · · · · Needle holder 3 0 · · · · Medicine tube 3 2 · · · · Medicine 4 0 · · · · Pulling part 411 · · · Large diameter part 413 · · · small Diameter portion 415···Breakout 4 2 1 · · Set hole 4 3 1 · · · Inner flange 4 4 · · · · Elastic element 4 5 1 · · · Opening 11 · · •• Small diameter part 13·· ••Sleeve 14 1· •• Groove 14 3· ••Retaining rib 14 5·•• Rib 15·· •• Large diameter section 17··••Open slot 2 1·· ••Two-way needle 3 1·· •• Plug body 4 1·· •• Mounting seat 4 12· •• Female thread 4 14· •• External thread 4 2·· • • Pulling handle 4 3·· ••Sleeve 4 3 2· • • Outer flange 4 5·· •• Fixing sleeve 4 5 2·••Internal thread 13 200812660
4 5 3 · • • 穿孔 4 6 • • 鲁 • 推桿 4 7 • · 壓柄 5 0 • · 安全套筒 5 1 • • 突緣 5 2 • · 肋槽 5 3 • • 定位槽孔 5 4 • · 導槽 6 0 鲁 · 筒體 6 1 • 拉柄 6 2 • · 針頭 6 3 • 推桿 6 4 • · 套管 6 4 1 嵌緣 6 4 2 · 剖槽 6 4 3 肋片 6 4 4 · 卡止肋 6 4 5 卡制端緣 6 4 6 · 肋片 6 4 6 肋條 6 5 • 鲁 安全套筒 6 5 1 肋槽 6 5 2 · 定位槽孔 6 5 3 導槽 ( 習 用） C 習用牙科麻醉針筒 7 0 針筒 7 1 • • 凸塊 7 2 針座 7 2 1 鲁 雙頭針 7 3 拉柄 7 3 1 參 大徑部 7 3 2 · 小徑部 7 3 3 • 導孔 7 4 膠圈 7 5 • 參 推桿 7 6 藥劑管 7 6 1 • 活塞 8 0 安全保護套管 8 1 • 參 導引槽 8 2 曲段部 8 3 • • 檔止部 8 4 • 卡止槽 144 5 3 · • • Perforation 4 6 • • Lu • Pusher 4 7 • • Clamp 5 0 • • Safety sleeve 5 1 • • Flange 5 2 • • Rib groove 5 3 • • Positioning slot 5 4 • · Guide groove 6 0 Lu · Cylinder 6 1 • Pull handle 6 2 • · Needle 6 3 • Push rod 6 4 • · Bushing 6 4 1 Insert 6 4 2 · Groove 6 4 3 Rib 6 4 4 · Snap rib 6 4 5 Snap end 6 4 6 · Rib 6 4 6 Rib 6 5 • Lu safety sleeve 6 5 1 Rib groove 6 5 2 · Positioning slot 6 5 3 Guide groove (used) C Conventional dentistry Anesthesia syringe 7 0 Needle 7 1 • • Bump 7 2 Needle holder 7 2 1 Lu double needle 7 3 Pull handle 7 3 1 Large diameter portion 7 3 2 · Small diameter portion 7 3 3 • Guide hole 7 4 Apron 7 5 • Reference push rod 7 6 Drug tube 7 6 1 • Piston 8 0 Safety sleeve 8 1 • Reference groove 8 2 Curved portion 8 3 • • Stop 8 4 • Locking groove 14