M277463 323-030TWU - 3/21 六、 英文新型摘要： 七、 指定代表圖： (一） 本案指定代表圖為：第（2)圖。 (二) 本代表圖之元件符號簡單說明： 5 10彎針組；11針頭；111卡掣凹環；12翼片； 121中管；13輸液接管；20針套；21容針室； 22出針孔；23長槽；231卡止部；232導針斜面； 春 233第一-^掣槽；234第二卡掣槽 10八、新型說明： 【新型所屬之技術領域】 • 本創作係有關於一種蝶形彎針輸液套改良，尤其指提 • 供靜脈內植式輸液塞專用，藉由蝶形彎針輸液套對病患實 施化學藥物治療後，針頭拔除之過程不致有化學藥物污染 I5醫務人員之危險，且使用過之針頭確實隱藏固定於針套內 • 部無法取出，俾以杜絕被再度使用者。 【先前技術】 按’靜脈內植式輸液塞俗稱人工血管，它包含球體部 20份和導管部份，球體部份大小如10元硬幣，是一個硬的塑 膠或金屬圓盤，中間有封閉性矽質的橡皮，導管部份使用 矽質材料，其可完全植入皮下兼具外型美觀及減少倂發感 染之危險；靜脈內植式輸液塞提供了需要長期藥物或輸液 治療的病患，一個可重覆使用的血液插管途徑，其可容許 •M277463 323-030TWU - 4/21 藥物、輸液及血液成份及其它溶液的輸入，也可作爲血液 採樣檢查，目前更普遍應用於化學藥物治療的癌症病患； 靜脈內植式輸液塞不但可以免除醫護人員無法順利找到病 患靜脈的煩惱，亦可減少病患因長期多次血管穿刺的身心 5痛苦，而且手術後照顧上十分容易，並不影響病患的曰常 生活，即使不需要再使用，留在病患體內也不會對人體造 成任何傷害。 •靜脈內植式輸液塞須使用專屬針頭，稱蝶形彎針輸液 套；將蝶形彎針輸液套之針頭與一般針頭相較，可看出蝶 10形彎針輸液套之針頭斜面較小，故而接觸的穿刺面積較 小，對於靜脈內植式輸液塞的矽質橡皮傷害較少，若使用 - 此種專屬的蝶形彎針輸液套，靜脈內植式輸液塞的矽質橡 . 皮至少可承受1000〜2000次以上的穿刺。 目前針對提供點滴使用之蝴蝶針而設計的結構衆多， 15其最主要之目的在於：將使用過之針頭確實隱藏收置，杜 • 絕不宵之徒將使用過的蝴蝶針經淸洗或消毒後，重新流入 醫療器材市場再度被使用，其將蝴蝶針的針頭確實隱藏收 置，並可有效防止醫務人員遭針頭紮傷感染病毒。 但，現階段針對靜脈內植式輸液塞專用之蝶形彎針輸 20液套而設計的結構並不多見，本創作人有鑑於此，特以其 多年來參與相關產業之硏發設計與生產製造實務經驗，針 對蝶形彎針輸液套的結構進行改良，期使藉由本創作人所 改良之蝶形彎針輸液套使病患實施化學藥物治療後，蝶形 彎針輸液套自病患的靜脈內植式輸液塞拔除之過程，其治 M277463 323-030TWU - 5/21 療病患之化學藥物不會污染醫務人員’並且將使用過之針 頭確實隱藏固定於針套內部致使無法取出’俾以杜絕被再 度使用者。 5【新型内容】 本創作之主要目的在於提供靜脈內植式輸液塞專用之 蝶形彎針輸液套改良，其可防止對病患實施化療後該化學 藥物污染醫務人員之危險’且使用過之針頭確實隱藏固定 於針套內部無法取出’俾以杜絕被再度使用者。 10 本創作次一主要目的在於提供可平貼於'病患身體表面 之蝶形彎針輸液套改良，當L形針頭之作用段插入靜脈內 植式輸液塞的矽質橡皮中’翼片及輸液接管可穩固平貼於 病患身體表面不至於鬆脫’則藉由蝶形彎針輸液套對病患 實施輸液治療之過程不致有漏液之弊端產生者。 15 爲實現上述目的’本創作蝶形彎針輸液套第一實施 例，包括一彎針組及一針套；該彎針組係由L形針頭、翼 片及輸液接管構成’其針頭之作用段前端可插刺於靜脈內 植式輸液塞的矽質橡皮中，且針頭之連結段設一"^掣凹環 並對應穿入翼片之中管一端’而翼片之中管另端係與輸液 20接管銜接；該針套係爲內部設有中空容針室及前端具有出 針孔之筒體，於針套之筒壁上設一長槽’此長槽與內孔相 連通，且長槽之末端設一呈三角卡槽狀之卡止部’此卡止 部之前方依序設有導針斜面及第一卡掣槽’並長槽之前端 設以第二卡掣槽者。 M277463 323-030TWU - 6/21 爲實現上述目的，本創作蝶形彎針輸液套第二實施 例，包括一彎針組及一針套；彎針組，係由L形針頭、翼 片及輸液接管組成，其針頭之作用段前端可插刺於靜脈內 植式輸液塞的矽質橡皮中，且針頭之連結段前端與翼片之 5中管內端的卡掣環連結，並翼片之中管外端與輸液接管銜 接者；針套，係內部設有中空容針室及前端具有出針孔之 筒體，於針套之筒壁上設一長槽，且針套之前端設一匕形 . 固針凸塊，此固針凸塊44之豎段設一與長槽導通之卡掣 孔’於固針凸塊之豎段設一針頭嵌槽者，另針套之後端對 10應固針凸塊之位置設一固管凸塊，此固管凸塊內部設一下 窄、內寬之接管嵌槽者。 【實施方式】 本創作蝶形彎針輸液套之第一實施例〈請參閱第1及2 15圖〉，包括一彎針組10及一針套20; φ 一彎針組10，係由L形針頭11、翼片12及輸液接管13 組成，其針頭11之作用段前端可插刺於靜脈內植式輸液塞 的矽質橡皮中〈請參閱第10圖〉，且針頭11之連結段設 一*^掣凹環111並對應穿入翼片12之中管121—端，而翼 20片12之中管121另端係與輸液接管13銜接者； 一針套20，係內部設有中空容針室21及前端具有出 針孔22之筒體（如第5圖所示），於針套20之筒壁上設一 長槽23 (如第2及5圖所示），此長槽23係與容針室21相 連通，於長槽23之末端設一呈三角卡槽狀之卡止部231 M277463 323-030TWU - 7/21 (如第2、5圖所示），且卡止部231前方依序設有導針斜 面232及第一·^掣槽233，並長槽23之前端設以第二卡掣 槽234者。 組裝本創作第一實施例蝶形彎針輸液套之構件時（如 5第2圖所示），係將彎針組10之針頭11作用段’自針套20 之長槽23的導針斜面232前方穿入容針室21內部（如第8 所示），且針頭11連結段之卡掣凹環111對應卡固於長槽 * 23之第一卡掣槽233中，俾以組成針頭11隱藏於針套20內 部之蝶形彎針輸液套。 10 藉由本創作蝶形彎針輸液套第一實施配合靜脈內植式 輸液塞對病患進行輸液治療時（如第3、6及9圖示）’係 . 以推力作用彎針組10之翼片12致使針頭11向前推移’直 到針頭11穿出針套20前端之出針孔22，且針頭11連結段 之卡掣凹環111對應卡固於長槽23之第二卡掣槽234中， 15俾以組成針頭11顯露於針套20外部之於蝶形彎針輸液 • 套；當L形針頭11之作用段對應插入靜脈內植式輸液塞30 的矽質橡皮中，翼片12及輸液接管13可穩固平貼於病患 身體表面不至於鬆脫（如第10圖所示），則藉由蝶形彎針 輸液套配合靜脈內植式輸液塞30對病患實施輸液治療之過 20程，不致有漏液之弊端產生者。 當本創作蝶形彎針輸液套第一實施對病患輸液治療完 成，且針頭11拔出靜脈內植式輸液塞30的矽質橡皮時； 爲杜絕使用過之針頭11被不肯之徒再度使用，係以推力作 用彎針組10之翼片12致使針頭11向後推移，直到針頭11 M277463 323-030TWU - 8/21 經由出針孔22縮入針套20內部，且針頭11之卡掣凹環111 沿著長槽23之導針斜面232進入卡止部231內（如第4及7 圖示），俾達永久將針頭11隱藏於針套20內部使其無法 取出被再度使用之目的。 5 本創作蝶形彎針輸液套之第二實施例〈請參閱第11及 12圖〉，包括一彎針組40及一針套50; 一彎針組40，係由L形針頭41、翼片42及輸液接管43 組成，其針頭41之作用段前端可插刺於靜脈內植式輸液塞 的矽質橡皮中〈請參閱第15圖〉，且針頭41之連結段前 10端與翼片42之中管421內端的卡掣環422連結，並於翼片 42之中管421外端與輸液接管43銜接者； 一針套50，係內部設有中空容針室51及前端具有出 針孔52之筒體（如第11及12圖所示），於針套50之筒壁 上設一長槽53 (如第13及14圖所示），且針套50之前端 15設一L形固針凸塊54，該固針凸塊54之豎段部設一與長槽 53相通之卡掣槽541，於固針凸塊54之橫段部設一針頭嵌 槽542者，另針套50之後端對應固針凸塊54之位置設一固 管凸塊55，該固管凸塊55內部設一夾管嵌槽551者。 組裝本創作第二實施例蝶形彎針輸液套之構件時（如 20第11圖所示），首先將彎針組40之針頭41作用段穿入針 套50之容針室51內部（如第13圖所示），當針頭41沿著 長槽53向外並穿出出針孔52後，將彎針組40順時針旋轉 90度，接著將平貼針套50之翼片42的中管421前段，嵌入 針套50前端固針凸塊54之卡掣槽541中，且翼片42中管 M277463 323-030TWU - 9/21 421前端之卡掣環422可平貼於固針凸塊54之豎段部前壁 上，隨後將彎針組40之針頭41嵌入固針凸塊54之橫段部 針頭嵌槽542中（如第12及14圖所示），最後將彎針組40 之輸液接管43嵌入針套50後端之固管凸塊55內部之夾管 5嵌槽551中即可達成蝶形彎針輸液套之構件組裝者。 藉由本創作第二實施例蝶形彎針輸液套配合靜脈內植 式輸液塞30對病患進行輸液治療時（如第15圖所示）， 病患所穿著之衣服不會鼓起，且輸液接管43不會受壓而中 斷輸液功能，且其蝶形彎針輸液套穿刺靜脈內植式輸液塞 10之使用穩固性更佳。 綜上所述之本創作蝶形彎針輸液套改良，其可防止病 患實施化療後該化學藥物污染醫務人員之危險，且使用過 之針頭確實隱藏固定於針套內而部無法取出，俾以杜絕被 再度使用；並於針頭插入靜脈內植式輸液塞的矽質橡皮中 15對病患進行輸液治療時，翼片及輸液接管可穩固平貼於病 患身體表面不至於鬆脫，則藉由蝶形彎針輸液套對病患實 施輸液治療之過程不致有漏液之弊端產生者，此乃爲本創 作最主要之創意所在，謹此一倂說明。 雖然本創作已以較佳實施例揭露如上，然其並非用以 20之限定本創作，舉凡任何熟習此道技藝者，當可在不脫離 本創作之精神和範圍內，進行各種更動與潤飾，因此本創 作之保護範圍當視後附之申請專利範圍所界定者爲準。 M277463 323-030TWU - 10/21 【圖式簡單說明】 第1圖係本創作第一實施例之構件組合立體外觀示意 圖； 第2圖係本創作第一實施例之立體分解示意圖； 5 第3圖係本創作第一實施例針頭穿出針套前端之立體 外觀示意圖； 第4圖係本創作第一實施例針頭縮入針套內部之立體 外觀示意圖； 第5圖係本創作第一實施例針頭之卡掣凹環卡固於第 1() 一卡掣槽中之前視外觀平面圖； 第6圖係本創作第一實施例針頭之卡掣凹環卡固於第 二卡掣槽中之前視外觀平面圖； 第7圖係本創作第一實施例針頭之卡掣凹環卡固於卡 止部中之前視外觀平面圖； 15 第8圖係本創作第一實施例針頭之卡掣凹環卡固於第 一卡掣槽中之俯視剖面圖； 第9圖係本創作第一實施例針頭之卡掣凹環卡固於第 二卡掣槽中之俯視剖面圖； 第10圖係本創作第一實施例之針頭插刺於靜脈內植式 20輸液塞矽質橡皮中且翼片平貼於病患身體表面之使用實施 例。 第11圖係本創作第二實施例針頭之卡掣凹環卡固於第 一卡掣槽中之俯視剖面圖； M277463 323-030TWU - 11/21 第12圖係本創作第二實施例針頭之卡掣凹環卡固於針 頭嵌槽中之俯視剖面圖； 第13圖係本創作第二實施例針頭穿出針套前端之立體 外觀示意圖； 5 第14圖係本創作第二實施例針頭之卡掣凹環卡固於針 頭嵌槽中之立體外觀示意圖； 第15圖係本創作第二實施例之針頭插刺於靜脈內植式 輸液塞矽質橡皮中且翼片平貼於病患身體表面之使用實施 例。 0 【主要元件符號說明】 10彎針組；11針頭；111卡掣凹環；12翼片； U1中管；13輸液接管；20針套；21容針室； 22出針孔；23長槽；231卡止部；232導針斜面； 5 233第一卡掣槽；234第二卡掣槽； 3〇靜脈內植式輸液塞； 4〇彎針組；41針頭；42翼片；421中管； 422卡掣環；43輸液接管；50針套；51容針室； 52出針孔；53長槽；54固針凸塊；541卡掣孔； 10 542針頭嵌槽；55固管凸塊；551夾管嵌槽M277463 323-030TWU-3/21 VI Abstract in English: VII. Designated Representative Map: (1) The designated representative map in this case is: (2). (2) Brief description of the component symbols in this representative figure: 5 10 curved needle set; 11 needles; 111 snap-in concave ring; 12 wings; 121 middle tube; 13 infusion tube; 20 needle sleeve; 21 needle chamber; 22 out Pinholes; 23 long grooves; 231 locking parts; 232 guide pin slopes; spring 233 first- ^ slot grooves; 234 second latching grooves 108. New type description: [Technical field to which the new type belongs] • This creative system has The improvement of a butterfly-shaped curved needle infusion set, especially for the provision of an intravenous implant infusion plug. After the patient is treated with chemical drugs by the butterfly-shaped curved needle infusion set, the needle removal process will not cause chemical contamination. I5 The medical staff is dangerous, and the used needles are indeed hidden and fixed inside the needle sleeve. The parts cannot be removed, so as to prevent being re-used by users. [Previous technology] According to the 'intravenous implant infusion plug', commonly known as artificial blood vessels, it contains 20 parts of the sphere and a catheter. The size of the sphere is like a 10 yuan coin. It is a hard plastic or metal disc with a seal in the middle. Silicone rubber, the catheter part is made of silicon material, which can be completely implanted under the skin with both beautiful appearance and reduce the risk of epidemic infection; the intravenous implant infusion plug provides patients who need long-term medication or infusion treatment, A reusable blood intubation route that allows • M277463 323-030TWU-4/21 The input of drugs, infusions and blood components and other solutions. It can also be used as a blood sampling test. It is currently more commonly used in chemical drug treatment. Intravenous implanted infusion plug can not only relieve the medical staff from the trouble of failing to find the patient's vein, but also reduce the physical and mental pain of the patient due to long-term multiple vascular puncture. Also, it is very easy to take care of after surgery. It does not affect the daily life of the patient. Even if it is no longer needed, it will not cause any harm to the human body. • Intravenous implant-type infusion plugs must use a dedicated needle, called a butterfly curved needle infusion set; comparing the needle of the butterfly curved needle infusion set with a normal needle, it can be seen that the needle bevel of the butterfly 10 curved needle infusion set is smaller Therefore, the contact puncture area is small, and the silicone rubber of the intravenous implant infusion plug is less harmful. If you use this kind of exclusive butterfly loop needle infusion set, the silicone rubber of the intravenous implant infusion plug. Can withstand at least 1000 ~ 2000 punctures. At present, there are many structures designed for the use of butterfly needles. 15 The main purpose is to conceal the used needles, and never wash or disinfect the used butterfly needles. Later, it re-entered the medical equipment market and was used again. It does hide the needle of the butterfly needle and can effectively prevent medical staff from being infected by the needle. However, at this stage, the structure designed for the 20-liquid set of the butterfly-shaped curved needle dedicated for intravenous implant infusion plugs is rare. The creator has taken this into consideration, and has been involved in the design and development of related industries for many years. Production manufacturing practice experience, to improve the structure of the butterfly loop needle infusion set, with the hope that the butterfly loop needle infusion set modified by the creator will enable patients to undergo chemical drug treatment, In the process of removing the intravenous implant infusion plug, the treatment of patients with M277463 323-030TWU-5/21 will not contaminate the medical staff, and the used needles will be concealed and fixed inside the needle cover so that they cannot be removed.俾 To prevent being re-used. 5 [New content] The main purpose of this creation is to provide an improved butterfly loop infusion set for intravenous implant infusion plugs, which can prevent the danger of contamination of medical staff by the chemical drug after chemotherapy is administered to patients. The needle is indeed concealed and fixed inside the needle sleeve and cannot be removed 'to prevent being re-used by the user. 10 The main purpose of this creation is to provide an improvement on the butterfly curved needle infusion set that can be flatly applied to the surface of the patient's body. When the active section of the L-shaped needle is inserted into the silicone rubber of the intravenous implant infusion plug, the tab and The infusion tube can be firmly and flatly adhered to the surface of the patient's body so as not to loosen. However, the butterfly curved needle infusion set is used to prevent the leakage of the patient during the process of infusion treatment. 15 In order to achieve the above purpose, the first embodiment of the present invention of a butterfly-shaped curved needle infusion set includes a curved needle group and a needle cover; the curved needle group is composed of an L-shaped needle, a flap and an infusion tube, and the role of the needle The front end of the segment can be inserted into the silicon rubber of the intravenous implant infusion plug, and the connecting segment of the needle is provided with a "recessing ring" corresponding to one end of the middle tube of the flap and the other end of the middle tube of the flap. It is connected with the infusion tube 20; the needle sleeve is a cylinder with a hollow needle chamber and a needle hole at the front end. A long groove is provided on the cylinder wall of the needle sleeve. This long groove communicates with the inner hole. And the end of the long slot is provided with a triangle-shaped slot-shaped locking portion 'in front of this locking portion, a guide pin bevel and a first locking slot are sequentially arranged', and the front end of the long slot is provided with a second locking slot . M277463 323-030TWU-6/21 In order to achieve the above purpose, the second embodiment of the butterfly looper infusion set is composed of a looper set and a needle set; the looper set is composed of an L-shaped needle, a flap and an infusion It is composed of a takeover tube, and the front end of the action section of the needle can be inserted into the silicon rubber of the intravenous implant infusion plug, and the front end of the connection section of the needle is connected with the snap ring of the inner end of the tube in the flap 5 and in the flap. The outer end of the tube is connected with the infusion tube; the needle cover is a cylinder with a hollow needle chamber and a needle hole at the front end. A long groove is provided on the cylinder wall of the needle cover, and a dagger is set at the front end of the needle cover. Shaped. A fixed needle projection. The vertical section of this fixed needle projection 44 is provided with a latching hole that communicates with a long slot. A needle insertion groove is provided in the vertical section of the fixed needle projection. A fixed tube projection is set at the position of the fixed needle projection, and a narrow and internal wide receiving slot is set inside the fixed tube projection. [Embodiment] The first embodiment of the creative butterfly loop infusion set (see Figures 1 and 2 15), includes a loop set 10 and a set 20; φ a loop set 10, which consists of L It consists of a needle 11, a flap 12 and an infusion tube 13. The front end of the active section of the needle 11 can be inserted into the silicon rubber of the intravenous implant infusion plug (see Figure 10), and the connecting section of the needle 11 is set A * ^ recessed ring 111 corresponds to the end of the tube 121 which is inserted into the wing 12, and the other end of the tube 121 in the wing 20 is connected with the infusion tube 13; a needle cover 20 is provided with a hollow inside The needle receiving chamber 21 and a cylinder with a needle hole 22 at the front end (as shown in Fig. 5), a long groove 23 (as shown in Figs. 2 and 5) is provided on the cylinder wall of the needle cover 20, and this long groove The 23 series communicates with the needle receiving chamber 21, and a triangular locking groove-shaped locking portion 231 M277463 323-030TWU-7/21 (as shown in Figures 2 and 5) is provided at the end of the long groove 23, and the locking is performed. A guide pin inclined surface 232 and a first control slot 233 are sequentially provided in front of the portion 231, and a second latch slot 234 is provided at the front end of the long slot 23. When assembling the components of the butterfly loop infusion set of the first embodiment of this creation (as shown in Fig. 5 and Fig. 2), the beveled surface of the guide needle of the looper group 10 is actuated from the long groove 23 of the needle set 20 The front of 232 penetrates into the inside of the needle accommodation chamber 21 (as shown in FIG. 8), and the locking recess 111 of the connecting section of the needle 11 is correspondingly fixed in the first locking groove 233 of the long groove * 23 to form the needle 11 A butterfly curved needle infusion set hidden inside the needle cover 20. 10 The first implementation of the butterfly loop needle infusion set with the intravenous implant infusion plug for infusion treatment of patients (as shown in Figures 3, 6, and 9) is the system. The wings of the loop needle group 10 are pushed by thrust The sheet 12 causes the needle 11 to move forward until the needle 11 passes through the needle hole 22 at the front end of the needle sleeve 20, and the locking recess 111 of the connecting section of the needle 11 is correspondingly fixed in the second locking groove 234 of the long groove 23. , 15 俾 is composed of a needle-shaped curved needle infusion set exposed to the outside of the needle cover 20 with the needle 11; when the active section of the L-shaped needle 11 is inserted into the silicon rubber of the intravenous implant infusion plug 30, the flap 12 and The infusion tube 13 can be firmly and flatly attached to the surface of the patient's body so as not to be loosened (as shown in FIG. 10). Then, the butterfly curved needle infusion sleeve and the intravenous implant infusion plug 30 are used to perform the infusion treatment on the patient. For 20 passes, there will be no disadvantages of leakage. When the first implementation of the butterfly loop infusion set for this patient is completed, and the needle 11 is pulled out of the silicone rubber of the intravenous implant infusion plug 30; in order to prevent the used needle 11 from being rejected again by unacceptable persons It is used to push the wings 12 of the looper group 10 with thrust to cause the needle 11 to move backward until the needle 11 M277463 323-030TWU-8/21 is retracted into the inside of the needle sleeve 20 through the needle hole 22, and the latch of the needle 11 is recessed The ring 111 enters the locking portion 231 along the guide needle inclined surface 232 of the long groove 23 (as shown in Figures 4 and 7), and Trent permanently hides the needle 11 inside the needle cover 20 so that it cannot be removed for reuse. 5 The second embodiment of this creative butterfly loop infusion set (see Figures 11 and 12) includes a loop set 40 and a loop set 50; a loop set 40 is made up of an L-shaped needle 41 and wings It is composed of a piece 42 and an infusion tube 43. The front end of the working section of the needle 41 can be inserted into the silicon rubber of the intravenous implant infusion plug (see Figure 15), and the first 10 ends of the connecting section of the needle 41 and the tab The snap ring 422 at the inner end of the middle tube 421 is connected to 42, and the outer end of the middle tube 421 of the wing 42 is connected to the infusion connection 43. A needle sleeve 50 is provided with a hollow needle chamber 51 and a needle at the front end. The cylinder body of the hole 52 (as shown in Figs. 11 and 12) is provided with a long groove 53 (as shown in Figs. 13 and 14) on the cylinder wall of the needle sleeve 50, and the front end 15 of the needle sleeve 50 is provided with an L A fixed needle projection 54 is formed in the vertical section of the fixed needle projection 54 with a latching groove 541 communicating with the long groove 53. A needle insertion groove 542 is provided in the horizontal section of the fixed needle projection 54. A fixed tube projection 55 is provided at the rear end of the sleeve 50 at a position corresponding to the fixed needle projection 54, and a clamping pinch groove 551 is provided inside the fixed tube projection 55. When assembling the components of the butterfly-shaped curved needle infusion set of the second embodiment of this creation (as shown in Fig. 20 and Fig. 11), firstly insert the action section of the needle 41 of the curved needle group 40 into the interior of the needle chamber 50 of the needle cover 50 (such as (Shown in Figure 13), after the needle 41 goes outward along the long groove 53 and exits the needle hole 52, rotate the looper group 40 clockwise 90 degrees, and then flatly attach the middle of the blade 42 of the needle sleeve 50 The front section of the tube 421 is inserted into the locking groove 541 of the fixed needle projection 54 at the front end of the needle sleeve 50, and the locking ring 422 at the front end of the tube 42 in the fin 42 can be flatly attached to the fixed needle projection. On the front wall of the vertical section of 54, the needle 41 of the looper group 40 is then inserted into the needle recess 542 of the horizontal section of the fixed needle projection 54 (as shown in Figures 12 and 14). Finally, the looper group 40 The infusion tube 43 is inserted into the clamping tube 5 inset groove 551 inside the solid tube protrusion 55 at the rear end of the needle sleeve 50 to achieve the component assembly of the butterfly curved needle infusion sleeve. When using the second embodiment of the butterfly-shaped curved needle infusion set and the intravenous implant infusion plug 30 to perform infusion treatment on a patient (as shown in FIG. 15), the clothes worn by the patient will not swell and the infusion The infusion tube 43 will not be pressured to interrupt the infusion function, and its butterfly loop needle infusion sheath punctures the intravenous implant infusion plug 10 with better stability. In summary, the modified butterfly loop infusion set created by this invention can prevent the patient from being contaminated by the chemical after the chemotherapy is performed, and the used needle is indeed hidden in the needle cover and cannot be removed, 俾In order to prevent re-use; and when the needle is inserted into the silicone rubber of the intravenous implant infusion plug 15 for infusion treatment of the patient, the flap and the infusion tube can be firmly and flatly attached to the patient's body surface so as not to loosen, The butterfly-shaped curved needle infusion set does not cause leakage of patients during the process of infusion treatment of patients. This is the main idea of this creation and I would like to explain it here. Although this creation has been disclosed as above with a preferred embodiment, it is not intended to limit this creation to 20. Anyone who is familiar with this art can make various changes and decorations without departing from the spirit and scope of this creation. Therefore, the scope of protection of this creation shall be determined by the scope of the attached patent application. M277463 323-030TWU-10/21 [Schematic description] Figure 1 is a three-dimensional appearance diagram of the component combination of the first embodiment of this creative work; Figure 2 is a three-dimensional exploded view of the first embodiment of this creative work; 5 Figure 3 It is a schematic diagram of the three-dimensional appearance of the needle in the first embodiment of the creation through the front end of the sleeve; Figure 4 is a schematic diagram of the three-dimensional appearance of the needle in the first embodiment of the creation retracted into the inside of the sleeve; The plan view of the front view of the snap ring of the snap ring in the first (1) snap slot; Figure 6 is the front view of the snap ring of the needle of the first embodiment of this creation in the second snap slot. Plan view; FIG. 7 is a plan view of the appearance of the latching ring of the needle of the first embodiment of the present invention before it is fixed in the locking portion; 15 FIG. 8 is the latching ring of the needle of the first embodiment of the present invention when it is fixed Top sectional view in the first latch groove; FIG. 9 is a top sectional view of the latch groove of the needle of the first embodiment of the present invention fixed in the second latch groove; FIG. 10 is the first implementation of this creation Example: Intravenous implanted 20 infusion stopper silicon rubber And the flap flat against the body surface of the patient using an embodiment. Fig. 11 is a top sectional view of the latching ring of the needle of the second embodiment of the present invention fixed in the first latching groove; M277463 323-030TWU-11/21 Fig. 12 is of the needle of the second embodiment of the present invention The top sectional view of the latching concave ring fixed in the needle slot; Figure 13 is a schematic diagram of the three-dimensional appearance of the needle penetrating the front end of the sleeve of the second embodiment of the present creation; 5 Figure 14 is the needle of the second embodiment of the present creation Schematic diagram of the three-dimensional appearance of the latching ring being fixed in the needle slot; Figure 15 is the second embodiment of the creation. The needle is inserted into the silicon rubber of the intravenous implant infusion plug and the flap is flat against the patient's body surface. Its use examples. 0 [Description of main component symbols] 10 curved needle sets; 11 needles; 111 snap-in concave rings; 12 wings; U1 middle tube; 13 infusion takeovers; 20 needle sleeves; 21 needle chamber; 22 needle holes; 23 long grooves 231 latching section; 232 guide needle bevel; 5 233 first latching slot; 234 second latching slot; 30 intravenous implant infusion plug; 40 curved needle set; 41 needles; 42 wings; 421 in Tube; 422 snap ring; 43 infusion takeover; 50 needle sleeve; 51 needle housing; 52 needle hole; 53 long slot; 54 fixed needle projection; 541 snap hole; 10 542 needle insertion slot; 55 fixed tube projection Block; 551 pinch groove