1239254 玖、發明說明（1 ) 【發明所屬之技術領域】 特別是指一種能收 本發明是有關於一種拋棄式針筒 納隱藏針體的拋棄式針筒。 【先前技術】 ::注射用的針筒或注射器，在完成注射目的後，無 免，、尖銳的針體有裸露在外的情形，所以，只要務有 不:真’就：有刺傷醫護人員之虞，造成傷痛甚或是愛滋病 堅肝=C型肝炎··."·等致命㈣疾減染的危險， 而在使用安全上有嚴重的缺失。 10 15 I可將針體收納在針筒本體内的安全針筒結 =設Γ將可免除醫護人員日常使用注射針筒之傷害與恐 堵如“第457752 ?虎「安全注射針筒構造」、公告第 「639號「安全注射針筒改良結構」、公告第447310號 扭轉回縮式安全注射針筒」、公告第料漏號「安全: 同」、公告第侧08 ?虎「安全注射針筒」……等專利案， 都可以藉由隱藏針體的設計方式，避免刺傷人員。惟，上 述女全針筒雖然、可以達到收納針體的目的，其卻於實際製 造使用時，仍存有以下缺失而亟待解決： 衣 1.上述安全針筒注射完畢後，必㈣後經推壓推 使推桿與針翻結）、後拉推桿（使推桿將針體抽拉至針筒 内）及折斷推桿（避免突出針筒的推桿不慎被觸壓，而使針 匕再次穿出針體)等動作，不但在動作上較為繁複，且在 。又。十上’要考慮推桿與針體S否具有足夠的固結力，否則 20 1239254 _、誉明說明（2 ) ^法將卡目在針筒前端的針體抽離，惟此—固炉 體及抽拉針體脫離針汽 隹才干與針 形成-種阻力，而H動作’顯然會因為前述卡固關係 而在細作上較費時費力。 5 10 15 2.且為了達到可以收拉針體的目的，上 用了多個組件連結針體| > 一曰、抓 式，除了合辦加έ且壯 惟’這種多組件的組合方 …、★ 的困擾外，且會增加材料、製造、 才双測成本，及提昇產品的不良 序，使- π 更㈢因為I瑣的組裝程 斤使組件被巧染的機會大幅提昇。 3·由於上述案件連結的組件相當多，因此，實厂 ^時，藥劑或血液在各組件間之死腔内的殘留量也會^ 加，也因而產生更多的污染問題。 曰 【發明内容】 1 口:’本發明之目的，即在提供一種能隱藏針體，且 間化組件及操作動作的拋棄式針筒。 々々於是，本發明的抛棄式針筒，包含有一外套管、一針 =本體…推桿及m該外套管具錢繞—轴線並 ^出-管腔的圍繞壁’該圍繞壁具有反向的一穿入端與 一穿出端。該針筒本體是可滑動的穿置在外套管的管腔内 ，使針筒本體可抽離部份管腔而位於拋棄位置，及與管腔 完㈣合而位於使用位置，該針筒本體具有圍繞該軸線並工 界疋出-大孔這與一小孔道的管壁，該管壁具有反向且鄰 近小孔道的-出口端與鄰近大孔道的—入口端。該推桿是 可滑動於大孔道内作有限推送行程。該針頭組具有一中空 20 1239254 玖、發明說明（3) 的針體2針體是部份固定在針筒本體小孔道内，使⑼ t出口端穿出針筒本體，藉此，當針筒本體㈣使用位: %，該針體會由外套管穿出端穿出外套管 於拋棄位置時，嗜斜姊合阼Μ〜丄 t问本體位 在管腔内。針脰會㈣林體抽離部份管腔而隱藏 【實施方式】 本發明之前述以及其他技術内容、特點與優點，在以 =芬考圖式之四較佳實施例的詳細說明t，將可清楚 參閱第一、二圖，本發明拋棄式針筒的第-較佳實施 例是包含有-外套管卜-針筒本體2、—推桿3及= 碩組4。 該外套管1具有圍繞一軸線χ並界定出一管腔丨丨的 15 輯壁12。該圍繞壁12具有反向的一穿入端121與一穿 15出端122、一鄰近穿入端121的大管徑段123與一鄰近穿 出端122的小管徑段124、數沿一外壁面125相對於小管 又124延伸且徑向突出的肋條126、數沿一内壁面1 η 相對於大管徑段123中間位置分佈的凸肋128。 該針筒本體2是可滑動的穿置在外套管丨的管腔u 内，並具有圍繞該軸線X並界定出一大孔道21與一小孔 逼22的管壁23。該管壁23外徑是與管腔u吻合，並具 有反向且鄰近小孔道22的一出口端231與鄰近大孔道21 的一入口端232、數鄰近出口端231且沿一外表面233呈 1239254 玖、發明說明（4 ) 環狀分佈的凹陷+、、盖 如徑向凹陷：:」 鄰近中間位置且沿外表面 广咖的卡合部235、數分別由卡合部235沿外表 33王螺旋狀延伸的導引槽2 · ' 相對於小孔道22且沿外編3突出的肋—片圖 限推是可滑動於針筒本體2的大孔道21内作有 該針独4具有—中空的針體41及—中空 :亥針體41是部份固定在針筒本體〇孔道U内， 10 15 20 :^由出口端231穿出針筒本體2。該針套42套 徑段124套合，及與肋條⑶卡合，並包覆隔離 參閱第二、三圖，在正常使用的狀態下，該外 =凸肋128與針筒本體2的卡合部扭卡合定 了本體2與外套管1的管腔η Μ套合，及以肋片23十8 舁内壁面127抵觸限位，而位於使用位置。藉此，進行注 射用途時，與-般針筒或注射器的操作方式相同，只 =套^取下’並推壓推桿3沿針筒本體2的大孔道Μ、滑 移，就可以使推桿3在推移過程中注射藥劑。 1參閱第三、四圖，當推桿3推移至大孔道21終點並 兀成〉主射用途後，只要稍加旋動針筒本體2,使外套管丨 在針筒本體2旋動的過程中，以凸肋⑶沿針筒本體二的 導引槽236(如第二圖）脫離卡合部235，就可以藉 槽236螺旋狀的導引功能，並反向牽引針筒本體2 ’使針 10 1239254 玖、發明說明（5 ) 筒本體2被旋退出部份管月空n 士 抽拉針筒本體2，至外 此吟，使用者只須繼續 卡溝234卡合定位時，該:乂d:與針筒本體2的 使針體41隨針筒本啤 版2佶好位於拋棄位置， 1的管腔11内。義士 g I 11而fe滅在外套管 繞壁12隔離斜雕;，使丟棄的針筒能以外套管丨的圍 A收於卜免除醫護人員使用傳統針筒後，因 為收拾針頭組4而盥針 Η交因 …十肢41接觸’導致受傷、感染的危 奴’㈣針筒再以適當處理程序處置。 10 另外’茶閱第五、六圖所示，是本發明第二較佳實 施例’其與第一較佳實施例大致相同，故於此不再贅述 ，其不同處只在於： 、 該外套管1更具有數破穿圍繞壁12-側129的視窗13 ，使該視窗13可顯露出部份的針筒本體2。藉此，除了可 以更清楚的透視針筒本體2外，也可以在視覺效果上縮小 整體的外徑。 該針筒本體2的導引槽237是由卡合部235沿外表面 233呈螺旋狀延伸至與卡溝234連接。藉此，完成注射用 途後，當使用者旋動並抽拉針筒本體2時，該外套管1就 可以利用凸肋128沿針筒本體2的導引槽237脫離卡合部 235，及依循導引槽237的執跡行進並卡入卡溝234，使針 同本體2能更順暢地抽離部份管腔11，並將針體41隱藏在 外套管1的管腔11内。 參閱第七圖所示，是本發明第三較佳實施例，其與 11 1239254 玫、發明說明（§ ) 故於此不再贅述，其不同處 第二較佳實施例大致相同 只在於： 该外㈣1更具有數破穿圍繞壁12兩側的視窗13、 14。該視窗13、14是排列在圍繞㈣兩㈣，使該視窗η 、14可顯露出部份的針筒本體2。藉Λ，同樣可以更 的透視針筒本體2外’也可以在視覺效果上縮小整 徑。 1 ’閱第八、九圖，是本發明第四較佳實施例，本發 10 15 20 棄式針同更具有_導管件5，可配合靜脈注射進行 :管内導管設置的作業，供抽血或銜接點滴輸注管線（圖 未不）等用途。 小管徑段與穿出端122間形成有 該外套管1更具有一 一套接段120。 該^管件5，並具有相互銜接且中空的一套接座η :軟g 52忒套接座51是與外套管1套接段120套合。 田針同本體2位於使用位置時，該針體叫與軟管52相套 合且部份由軟管52穿出。 、使用日守，可以藉由針體41穿刺入動物體的血管内， =引軟管52進人血管内，藉此，使用者可以直接抽拉推 才干3 ’將A液由軟管52經套接座川由取入針筒本體2内， 提供後續血液相關檢測之檢體。且當外套管丨脫離導管件 :完成血管内導管設置的作業後，同樣可以將針筒本體2 部份抽離外套管丨，使針體41隱藏在外套管丨的管腔11内 12 1239254 玖、發明說明（7 ) ，達到隔離的目的。 歸納上述，本發明之拋棄式針筒實已具有如下所列之 優點及功效： 1·本發明只須藉由旋轉並後拉針筒本體2的動作，就 可以使針體41賴在外套#1的管腔㈣，達到隔離針 體41的目的，不但在操作上更為簡易，且不需要強迫針 體〇脫離針筒本體2,而能以更省時省力的方式完成隱 藏針體41的動作。 10 15 20 2'且本發明除了針筒本體2、推桿3及針頭組4等結 構外，只利用了一個特殊設計的外套管卜就可以達到隱 藏針版41的目的。使本發明利用特殊的結構設計、精簡 :組件’提昇針筒的實用性及組裝的效率，降低組件被污 木的機會，並能降低材料、組裝、檢測成本。 匹配3.由於推桿3與針筒本體2大孔道21的結構是完整 ，-：因此’樂劑能被推桿3幾乎完全推擠出針筒本體2 斤乂可以使樂劑或血液殘留的污染問題降至最低。 4.本發明可以配合導管 在砰脈，主射後，將軟管52 ^内’完成血管内導普执署& 針體41㈣在外套其= 並能直接將 、一套s 1内，而能隔離針體，免除醫護1239254 发明 Description of the invention (1) [Technical field to which the invention belongs] In particular, the present invention relates to a disposable syringe which is a disposable syringe that contains a concealed needle body. [Previous technology] :: Needle barrels or syringes for injection, after completing the purpose of injection, the sharp needle body may be exposed, so as long as there is nothing: true ': there is a stab wound to the medical staff It can cause injury or even AIDS. Liver = Hepatitis C. ... and other dangers of reducing the risk of fatal dysentery, and there is a serious lack of safety in use. 10 15 I Safety needle knot that can store the needle in the body of the syringe = Setting Γ will prevent medical staff from using the injection syringe in the daily injury and fear of blockage, such as "Article 457752-Tiger" Safety syringe structure ", Announcement No. 639 "Improved Structure of Safety Syringe", Announcement No. 447310 Twisted Retractable Safety Injection Syringe, Announcement No. "Safety: Same", Announcement No. 08-Tiger "Safety Syringe" "... and other patent cases, you can avoid stabbing people by hiding the needle design. However, although the above-mentioned female full syringe can achieve the purpose of accommodating the needle body, it still has the following shortcomings and needs to be resolved when it is actually manufactured and used: Clothing 1. After the above safety syringe is injected, it must be pushed forward. Press and push to make the push rod and needle turn), pull the push rod back (to make the push rod pull the needle into the syringe barrel) and break the push rod (to avoid the push rod protruding from the syringe from being accidentally pressed, so that the needle The dagger penetrates the needle body again) and other actions, which are not only complicated in movement, but also in. also. Shi Shang 'must consider whether the push rod and the needle body S have sufficient consolidation force, otherwise 20 1239254 _, Yu Ming description (2) ^ method to pull the needle body of the card at the front of the syringe, but this-solid furnace The body and the drawn needle body can form a kind of resistance with the needle before it is released from the needle, and the H action is obviously more time-consuming and labor-intensive due to the aforementioned clamping relationship. 5 10 15 2. And in order to achieve the purpose of retracting the needle body, a plurality of components are used to connect the needle body | > One-handed, grasping type, in addition to cooperating and multiplying such a multi-component combination method …, ★, and will increase the cost of materials, manufacturing, and testing, as well as improve the bad order of the product, making -π even more difficult. Because of the trivial assembly process, the chance of the component being dyed is greatly increased. 3. Since there are quite a lot of components connected in the above case, the residual amount of pharmaceuticals or blood in the dead space between the components will increase when the factory is completed, which will cause more pollution problems. [Summary of the invention] 1 mouth: ‘The purpose of the present invention is to provide a disposable syringe which can hide the needle body, and can assemble components and operation actions. Therefore, the disposable syringe of the present invention includes an outer sleeve, a needle = the body, a push rod, and the outer sleeve. The outer sleeve has a winding-axis line and ^ out-a surrounding wall of the lumen. A penetrating end and a penetrating end facing each other. The syringe body is slidably placed in the lumen of the outer sleeve, so that the syringe body can be pulled away from a part of the lumen and placed in the abandonment position, and it is located in the use position after being combined with the lumen. There is a pipe wall surrounding the axis and a large hole and a small channel, which has an exit end opposite to and adjacent to the small channel and an inlet end adjacent to the large channel. The push rod can slide in a large channel for limited pushing stroke. The needle set has a hollow 20 1239254 玖, the needle body 2 of the invention description (3). The needle body is partially fixed in the small channel of the syringe body, so that the outlet end of ⑼ t penetrates the syringe body. Use position of body:%, when the needle body is pushed out of the outer sleeve from the outer end of the outer sleeve at the discarding position, the oblique coupling 阼 M ~ 丄 t is located in the lumen. Acupuncture will extract part of the lumen and hide it. [Embodiment] The foregoing and other technical contents, features, and advantages of the present invention will be described in detail in the fourth preferred embodiment of the Finkel diagram. As can be clearly seen in the first and second figures, the first preferred embodiment of the disposable syringe of the present invention includes an outer sleeve, a syringe body 2, a push rod 3, and a large group 4. The outer sleeve 1 has 15 walls 12 around an axis χ and defining a lumen. The surrounding wall 12 has an entrance end 121 and an exit end 122 opposite to each other, a large pipe diameter section 123 adjacent to the entrance end 121 and a small pipe diameter section 124 adjacent to the exit end 122. The ribs 126 extending from the outer wall surface 125 to the small tube 124 and protruding radially, and the ribs 128 distributed along the inner wall surface 1 η with respect to the middle position of the large tube diameter section 123. The syringe body 2 is slidably inserted into the lumen u of the outer sleeve 丨 and has a tube wall 23 surrounding the axis X and defining a large channel 21 and a small hole 22. The outer diameter of the tube wall 23 coincides with the lumen u, and has an outlet end 231 opposite to and adjacent to the small channel 22 and an inlet end 232 adjacent to the large channel 21, several adjacent to the outlet end 231, and along an outer surface 233. Shows 1239254 发明, description of the invention (4) Ring-shaped depressions +, and covers such as radial depressions :: "The engaging portion 235 and the number near the middle position and along the outer surface of the wide coffee are respectively formed by the engaging portion 235 along the outer surface 33 The guide groove 2 extending in a helical shape of the king is opposite to the small channel 22 and the rib protruding along the outer braid 3. The limit push is that the needle can be slid in the large channel 21 of the syringe body 2 and has 4- Hollow needle body 41 and—Hollow: Hai needle body 41 is partially fixed in the body 0 of the syringe body U, 10 15 20: ^ exits the syringe body 2 from the outlet end 231. The needle sleeve 42 sets of diameter sections 124 fits, and engages with the rib ⑶, and is covered and isolated. Refer to the second and third figures. Under normal use, the outer = convex rib 128 is engaged with the syringe body 2 The torsional engagement fixes the fitting of the body 2 and the lumen η M of the outer tube 1, and the inner wall surface 127 of the rib 23 80 is in contact with the limit position and is located at the use position. Therefore, when injecting, the operation mode of a syringe or syringe is the same as that of a syringe or a syringe, only the sleeve ^ removed 'and pushing the push rod 3 along the large channel M of the syringe body 2 and sliding can push. The rod 3 injects a medicament during the pushing process. 1Refer to the third and fourth figures, when the push rod 3 is moved to the end of the large hole 21 and formed> After the main shooting purpose, just slightly rotate the syringe body 2 to make the outer sleeve 丨 rotate in the syringe body 2 In this way, the rib ⑶ is separated from the engaging portion 235 along the guide groove 236 (as shown in the second figure) of the second syringe body, and the spiral guide function of the groove 236 can be used to pull the syringe body 2 in the opposite direction. Needle 10 1239254 发明, description of the invention (5) The barrel body 2 is unscrewed to withdraw part of the tube moon and sky n. Pull the barrel body 2 to the outside, and the user only needs to continue the groove 234 to engage and locate, the:乂 d: The needle body 41 is positioned in the discard position 1 with the syringe body 2 so that the needle body 41 is located in the discard position 1. The righteous person g I 11 and fe annihilate the oblique carving on the outer sleeve 12 around the wall 12 so that the discarded syringe can be placed outside the cannula. A is closed after removing the medical staff from using the traditional syringe because the needle set 4 is cleaned. Epiphyseal intercourse ... Ten limbs 41 contact the 'dangerous slave who caused injuries and infections' and the needle cylinder is disposed of with appropriate procedures. 10 In addition, the tea is shown in Figures 5 and 6 as the second preferred embodiment of the present invention. It is substantially the same as the first preferred embodiment, so it will not be repeated here. The only differences are: The tube 1 further has a plurality of windows 13 that penetrate through the wall 12-side 129, so that the windows 13 can expose a part of the syringe body 2. Thereby, in addition to allowing the syringe body 2 to be seen more clearly, the overall outer diameter can be reduced visually. The guide groove 237 of the syringe body 2 is spirally extended from the engaging portion 235 along the outer surface 233 to be connected to the engaging groove 234. Thus, after the injection is completed, when the user rotates and pulls the syringe body 2, the outer sleeve 1 can use the raised rib 128 to disengage from the engaging portion 235 along the guide groove 237 of the syringe body 2 and follow The track of the guide groove 237 travels and snaps into the groove 234, so that the needle and the body 2 can more smoothly withdraw part of the lumen 11 and hide the needle body 41 in the lumen 11 of the outer sleeve 1. Referring to the seventh figure, it is the third preferred embodiment of the present invention, which is the same as 11 1239254 and the invention description (§), so it will not be repeated here. The second preferred embodiment is substantially the same except that: The outer condyle 1 further has a plurality of windows 13 and 14 that penetrate through both sides of the surrounding wall 12. The windows 13 and 14 are arranged around the two sides, so that the windows η and 14 can expose part of the syringe body 2. By using Λ, the outside of the syringe body 2 can also be seen through more, and the entire diameter can be reduced visually. 1 'See the eighth and ninth figures, which is the fourth preferred embodiment of the present invention. The present 10 15 20 disposable needle has a _ catheter 5 and can be used with intravenous injection to perform the operation of setting the catheter in the tube for blood extraction. Or connect the drip infusion line (not shown in the figure) and other purposes. The outer tube 1 is formed between the small-diameter section and the exit end 122 and has a set of connecting sections 120. The tube fitting 5 has a set of sockets η that are connected to each other and are hollow: the soft g 52 and the socket 51 are sleeved with the sleeve section 1 of the outer sleeve 120. When the Tian needle is in the use position with the main body 2, the needle body is called to fit with the hose 52 and partially penetrated by the hose 52. 2. Using the day guard, the needle body 41 can be inserted into the blood vessel of the animal body, = the lead tube 52 is inserted into the human blood vessel, thereby the user can directly pull and push the talent 3 'put the A liquid from the tube 52 through The socket socket is taken into the syringe body 2 to provide a specimen for subsequent blood-related tests. And when the outer sleeve 丨 is detached from the catheter: After completing the operation of setting the intravascular catheter, the body 2 of the syringe body can also be pulled away from the outer sleeve 丨, so that the needle 41 is hidden in the lumen 11 of the outer sleeve 丨 12 1239254 玖The invention description (7), to achieve the purpose of isolation. To sum up, the disposable syringe of the present invention has the following advantages and effects: 1. The present invention can make the needle body 41 rest on the outer jacket only by rotating and pulling the syringe body 2 back. The lumen of 1 achieves the purpose of isolating the needle body 41, which is not only easier to operate, but also does not need to force the needle body 0 to detach from the syringe body 2, and can complete the concealment of the needle body 41 in a more time-saving and labor-saving manner. action. 10 15 20 2 '. In addition to the structure of the syringe body 2, the push rod 3, and the needle group 4, the present invention can achieve the purpose of hiding the needle plate 41 by using only a specially designed outer sleeve. The present invention makes use of a special structural design and streamlined: components' to improve the practicability and assembly efficiency of the syringe, reduce the chance of the components being stained with wood, and reduce the cost of materials, assembly and testing. Match 3. Because the structure of the push rod 3 and the large hole 21 of the syringe body 2 is complete,-: Therefore, 'music agent can be pushed out of the syringe body 2 almost completely by the push rod 3. Pollution issues are minimized. 4. The present invention can cooperate with the catheter to ping the pulse, and after the main shot, the tube 52 ^ is completed to complete the intravascular guide. The needle 41 is placed in the outer sleeve and can be directly inserted into a set of s 1, and Capable of isolating the needle body and eliminating the need for medical care
:订官内導官設置作業時’使用傳統注射器後，因 為收拾針體41，而盥斜舻拉總、曾 U 險。 。針體41接觸，導致受傷、感染的危 而已，當不 惟以上所述者’僅為本發明之較佳實施例 13 1239254 坎、發明說明（8 ) 月匕以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明書内容所作之簡單的等效變化與修:，皆 應仍屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 第一圖疋一分解圖，說明本發明拋棄式針筒的一第一 較佳實施例； 第二圖是一正視圖，說明該較佳實施例的組合情形； 第二圖是一剖視圖，說明該較佳實施例中一針筒本體 位於使用位置； 第四圖是一剖視圖，說明該較佳實施例中該針筒本體 位於撤棄位置並隱藏一針體； 十门本體 =五圖是一正視圖，說明本發明—第二較佳實施例； 第六圖是-正視圖，說明該第二較佳實施例中針筒本 體位於拋棄位置並隱藏該針體； 第七圖是一正視圖，說明本發明一第三較佳實施例； 第八圖是一剖視圖，說明本發明一第四較佳實施例； 第九圖是一剖視圖，說明該第四較佳實施例中針筒本 體位於拋棄位置，並隱藏該針體及將一導管件留置在血管 内。 14 1239254 玖、發明說明（9 ) 【圖式之主要元件代表符號簡單說明】 1 (« 4 « TL·… ………j、子匕 1卜… “ 月空 23 Μ ” " r^> 12 “… ε……圍繞壁 231 - …“…出π端 121… ……，穿入端 232- "……入0端 122… ……《穿出端 233 - …“…夕卜表面 123… ……大管徑段 234- 124… …小管徑段 235- …“…卡合部 125… …“ “夕卜i^Q 236- ……〃導引槽 126… ……1肋條 237- ”……導弓1槽 127- *“*·**f 238- "……肋ϋ 128… ……，t〇7肋 3…… ……“推桿 129… » ·ί a r · + K — _ 4,…" …"…針頭組 120… ……< 套接段 1 v *，v ……〃針體 13 8……視w 42…* …"…益十 1 ‘ ………視窗 5…… …“…導管件 2……' ………針筒本體 51…· ……“套接座 21'… ………大孑匕道^ 52 Λ h. S> ^ ^ A * /"ρΓ^ 15: When setting up the internal guide of the ordering officer ’After using the traditional syringe, because the needle body 41 was cleaned up, the toilet was pulled and the head was in danger. . The contact of the needle body 41 may result in the danger of injury and infection. It is not only the above-mentioned ones that are only the preferred embodiment of the present invention. 13 1239254 Kan, invention description (8) The dagger is used to limit the scope of the present invention. Any simple equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the invention description of the present invention shall still fall within the scope of the invention patent. [Brief description of the drawings] The first figure is an exploded view illustrating a first preferred embodiment of the disposable syringe of the present invention; the second figure is a front view illustrating the combination of the preferred embodiment; the second Figure is a cross-sectional view illustrating the syringe body in the use position in the preferred embodiment; Figure 4 is a cross-sectional view illustrating the syringe body in the withdrawal position and hiding a needle body in the preferred embodiment; The body = fifth figure is a front view illustrating the present invention—a second preferred embodiment; the sixth figure is a front view illustrating the syringe body in the second preferred embodiment in a discarded position and the needle body is hidden; Figure 7 is a front view illustrating a third preferred embodiment of the present invention; Figure 8 is a sectional view illustrating a fourth preferred embodiment of the present invention; Figure 9 is a sectional view illustrating the fourth preferred embodiment In the example, the syringe body is located in the abandonment position, the needle body is hidden, and a catheter member is left in the blood vessel. 14 1239254 发明, Description of the invention (9) [Simplified description of the main symbols of the drawings] 1 («4« TL · ...… j, sub-dagger 1 bu ... "" Moon and Sky 23 Μ "" r ^ > 12 "... ε ... around the wall 231-…" ... out π end 121 ... ......, ingress end 232- " ... in 0 end 122 ... ...... "exit end 233-…" ... Xibu surface 123 …… Large-diameter section 234- 124… small-diameter section 235-… “… engagement section 125…” “Xibu i ^ Q 236-… 〃 guide groove 126…… 1 rib 237- "... Guide bow 1 slot 127-*" * · ** f 238- " ... Rib ϋ 128 ... ……, t〇7 rib 3 ... ...... "Put 129…» · ί ar · + K — _ 4,… "… " ... Needle set 120 ……… < Socket segment 1 v *, v ...... Needle body 13 8 …… View w 42… *… " ... benefit ten 1 '… ... window 5 ...… "... catheter 2 ...'...... syringe body 51 ......" "socket holder 21 '...… 孑 大道 道道 ^ 52 Λ h. S > ^ ^ A * / " ρΓ ^ 15