M398930 五、新型說明： 【新型所屬之技術領域】 本創作係與醫#用注射器具有關，特別是指一種可配 合注射針筒或點滴導管使用的免針穿刺之留置針。 【先前技術】M398930 V. New description: [New technical field] This creation department is related to the doctor # syringe, especially a needle-free puncture needle that can be used with an injection syringe or a drip catheter. [Prior Art]
習知之動靜脈留置針大致包含有一筒身、一留置管、 逆止塞以及一蓋體，該筒身具有一軸向延伸之容置孔， 該留置管是設於該容置孔前端，用以***患者血管令，該 逆止塞是塞設於該筒身之容置孔後端，該蓋體是用以封閉 該筒身之容置孔後端。 當需要進行注射時，使用者需先取下該蓋體，並以裝 有針頭之針筒或點滴導管刺穿該逆止塞，此時，注射物即 可通過該針頭、該筒身以及該留置管而被注人患者血管。 然而，該留置針於每次注射時，使用者均需使用針頭 阳穿該逆止塞’秘注射後，❹者也需重新將該蓋體鎖 固於該筒身，以避免注射物回流，因此使用上相當麻煩。 【新型内容】 鑑於上述缺失，本創作之— 刺之留置針，而可提一:：:提供， -筒:達穿㈣置針係包含有 身具有-容置孔以及-第-接部地= 3 i〇98930 該筒身，並具有一前端以及一後端，該第一接部是形成於 該容置孔後端之周圍，該留置管是設於該筒身前端，並具 有一注射通道與該筒身之容置孔前端連通，該第一逆止塞 是塞設於該筒身之該容置孔後端，並具有一剖溝，該剖溝 是軸向地貫穿該第一逆止塞，該第一蓋體是設於筒身之第 一接部’並具有—中心孔。 其中，該筒身之第一接部可包含有一卡合槽，該第_ 蓋體包含有一卡合肋，該卡合肋是可分離地卡合於該筒身 之卡合槽中，該第一蓋體於遠離該筒身之一侧可形成有二The conventional arteriovenous indwelling needle generally comprises a barrel body, an indwelling tube, a backstop and a cover body. The barrel body has an axially extending receiving hole, and the indwelling tube is disposed at the front end of the receiving hole. In the insertion of the patient's blood vessel, the backstop is inserted at the rear end of the receiving hole of the barrel, and the cover is used to close the rear end of the receiving hole of the barrel. When an injection is required, the user first removes the cover and pierces the check stopper with a needle-mounted syringe or a drip catheter. At this time, the injection can pass through the needle, the barrel, and the indwelling. The tube is injected into the patient's blood vessels. However, when the indwelling needle is used for each injection, the user needs to use the needle to wear the backstop. After the injection, the latter also needs to re-lock the cover to the barrel to avoid the backflow of the injection. Therefore, it is quite troublesome to use. [New content] In view of the above-mentioned shortcomings, the creation of the thorn-like needle, but one can be::: provide, - the tube: the wearing (four) needle system contains the body with - accommodating holes and - first - joints = 3 i〇98930 The barrel body has a front end and a rear end. The first joint portion is formed around the rear end of the receiving hole. The indwelling tube is disposed at the front end of the barrel body and has an injection passage. And communicating with the front end of the receiving hole of the barrel, the first backstop plug is inserted at the rear end of the receiving hole of the barrel body, and has a cutting groove, the cutting groove is axially penetrated through the first reverse The first cover is disposed at the first joint portion of the barrel and has a central hole. The first connecting portion of the barrel body may include an engaging groove, the first cover body includes an engaging rib, and the engaging rib is detachably engaged with the engaging groove of the barrel body, the first a cover body can be formed on one side away from the side of the barrel
定位凸塊，該第一蓋體之中心孔可為一錐孔，該錐孔之内 從是隨著遠離該筒身而遞增；另外，該第一逆止塞可具有 一圓盤部以及—環肋部，該環肋部S由該1B盤部軸向地沿 伸而出’該财之帛―接部包含有—環形容槽供該第一逆 ，塞之環肋部容置於其巾’該®盤部於遠離該筒身之一侧 可形成有二定位肋，該第一逆止塞之剖溝是位於該二定位 肋之間，該®盤部於接近該筒身之—側可形成有—橫向凸 =以及二凹槽’該剖溝是形成於該橫向凸塊上，該二凹槽 为別位於該凸塊兩侧。此外，該圓盤部於遠離該筒身之二 2形成有-弧凸面，該第-蓋體之中心孔可為一雜孔， 〇中心孔之内側壁面並與該第-逆止塞之弧凸面貼接。 一料，該免針穿刺之留置針可更包含有二翼片、 一延止塞以及一第二蓋體，該翼 身，㈣ha入士 體成形地連接該筒 由节容署 d —上孔以及—第二接部，該上孔是 μ置孔延伸至該筒身頂側，該第二接部是形成於該上 4 M398930 孔之頂端周園，該第二逆止塞是塞設於該筒身之該上孔頂 端’並具有一剖溝貫穿該第二逆止塞，該第二蓋體是設於 筒身之第二接部，並具有一中心孔。 【實施方式】 為了詳細說明本創作之構造及特點所在，茲舉以下二 較佳實施例並配合圖式說明如後，其中： 第一圖係本創作一較佳實施例之頂視圖； 第二圖係本創作一較佳實施例之分解圖； 第三圖係本創作一較佳實施例逆止塞之立體圖（一）； 第四圖係本創作一較佳實施例逆止塞之立體圖（二）； 第五圖係本創作一較佳實施例之使用狀態示意圖 (一）； 第六圖係本創作-較佳實施例之使用狀態示意圖 (二）； 第七圖係本創作-較佳實施例之使用狀態示意圖 (三）； 第八圖係本創作另-較佳實施例逆止塞及蓋體之剖視 圖。 請參閱第-圖至第二圖，本創作一較佳實施例所提供 之免針穿刺之留置針10,是包含有一筒身20、一留置管 30、二翼片35、一第一逆止塞4〇、一第一蓋體5〇、一第 二逆止塞60以及一第二蓋體7〇。 該筒身20概呈圓管狀，並具有一容置孔22、一上孔 5 M398930 24、一第一接部26以及一第二接部28，該容置孔22是軸 向地貫穿該筒身20 ’並具有一前端221以及一後端223， 該上孔24是由該容置孔22延伸至該筒身20頂侧，該第 一、第二接部26,28分別形成於該容置孔22後端223以及 上孔24之頂端周圍，且各具有一卡合槽261，281以及一環 形容槽263,283 ’其中，該卡合槽261,281是形成於該筒身 20之外側周壁，該環形容槽263,283則是同轴地形成於該 卡合槽261,281之内側。 該留置管30是設置於該筒身20之前端，並具有一注 射通道32連通於該筒身20容置孔22前端221，該留置管 3〇是由鐵氟龍(Teflon)材料所製成，而且具有撓性。 該二翼片35是一體成形地連接該筒身20。 該第一、第二逆止塞40,60是由橡膠所製成，分別塞 設於該筒身20之容置孔22後端223以及上孔24頂端，而 且各具有一圓盤部42,62以及一環肋部44,64，如第二圖至 第四圖所示，該圓盤部42,62具有一刮溝421,621、二定位 肋423,623、一橫向凸塊425,625以及二凹槽427,627，該 剖溝421，621是軸向地貫穿該第一、第二逆止塞4〇,6〇之圓 盤部42,62，該二定位肋423,623是形成於該圓盤部42,62 遠離該筒身20之一側，而可於製造過程中協助製造者準確 且筆直地切割出該剖溝421，621，該剖溝421，621是位於該 二定位肋423,623之間’該橫向凸塊425,625及該二凹样 427,627是形成於該圓盤部42,62接近該筒身2〇之一側， 該剖溝421,621是形成於該橫向凸塊425,625上，該二凹槽 6 iVuy893〇 427,627是位於該橫向凸塊425,625之兩側，該環肋部44 是由該圓盤部42軸向地朝接近該筒身20之方向延伸而 出’且容置於該筒身20之環形凹槽263,283中。 該第一、第二蓋體50,70(如第二圖）分別設於該筒身2〇 之第一、第二接部26,28 ’並具有一中心孔52,72以及一環 形之卡合肋54,74，該中心孔52,72是為一錐孔，該卡合肋 54,74是可分離地卡合於該筒身20之卡合槽261，281中， 該第一蓋體50於遠離該筒身20之一側並形成有二定位凸 塊56。 經由上述結構’該留置針1〇於初次注射時需配合一穿 刺針12使用，如第五圖所示，該穿刺針12包含有一針座 121、一針頭123以及一迴流座125，其中’該針座ι21及 該迴流座125可共同形成一容室126(如第六圖），使用者需 先將該針頭123經由該留置針1〇後端依序穿過該第一蓋體 50之中心孔52、第一逆止塞40之剖溝42卜筒身2〇之容 置孔22以及留置管30之注射通道32，並使針頭123之尖 端裸露於該留置管30前側，如第六圖所示，接著將該針= 123尖端及該留置f 3〇共同穿過患者皮膚而刺入其也管 中，此時，使用者可透過患者血液是否沿該針頭123流至 該容室126,來破認該留置管3〇是否域實***血管中|隨 後’使用者可抽出鮮麟12，並將―裝填社射液之^ 筒、14或是導管，經由該第一蓋體5〇之中心子⑸撐開該第 =逆止塞40之剖溝42卜如第七圖所*，使其前端進入該 筒身20之容置孔22 t，再配合推動該針筒之推桿(圖^ 7 M398930 示），該注射液即可經由該筒身20之容置孔22及該 3〇之注射通道32順利注入患者企管；注射後，當使用二 抽出該針筒14時’該第一逆止塞4〇之剖溝421則可藉由 本身彈性而自動封閉，以避免該筒身2Q中殘留之注射^ 由邊第一逆止塞40流出。 ’” 另外，該筒身20之上孔24同樣可供使用者進行注射。 由於該第-逆止塞40,60是利用彈性變形之方式來形 成通道，因此即使該針筒14未設置針頭，仍可順利該 剖溝421，621而進入該筒身20内部進行注射，此外，當= 用者抽出該針筒14時，該第—、第二逆止塞4_亦二 ，本身之彈性自動封閉該容置孔22後端，使該筒身^ 部自動與外界隔絕，故可大大提高使用上之便利性；此外， 5亥第一蓋體50之定位凸塊56是用以插置於該穿刺針12 針座121前側之凹部128(如第五圖），以協助該針頭123以 正確之旋轉角度插人患者皮膚；另外，該第-、第二蓋體 :〇’70之中心孔52,72是為—錐孔’且其内徑是隨著遠離該 筒身20而遞增’而可使該針筒14前端更順利地***該中 心孔52,72;再者，該第一、第二逆止塞40,60之凹槽427^27 則可使該針筒14更順利地撐開該剖溝421。 除此之外，該逆止塞及蓋體之結構亦可加以自由變 化，δ月再參閲第八圖，逆止塞82於遠離該筒身之一側可形 成弧凸面82卜使得使用者可輕易地利用酒精棉片 該逆止塞82進行消毒，而蓋體84之t心孔841則為Γ錐 孔，且其内側壁面並與該逆止塞82之弧凸面821貼接。 8 M398930 基於本創作之精神，該免針穿刺之留置針於結構上其 實也還具有多種變化，例如，該二翼片35亦可依需要而不 設置，舉凡此等易於及思之種種變化，均應被涵蓋在本案 之專利範圍。 M398930 【圖式簡單說明】 第一圖係本創作一較佳實施例之頂視圖； 第二圖係本創作一較佳實施例之分解圖； 第三圖係本創作一較佳實施例逆止塞之立體圖（一）； 第四圖係本創作一較佳實施例逆止塞之立體圖（二）； 第五圖係本創作一較佳實施例之使用狀態示意圖 (一）； 第六圖係本創作一較佳實施例之使用狀態示意圖 (二）； 第七圖係本創作一較佳實施例之使用狀態示意圖 (三）； 第八圖係本創作另一較佳實施例逆止塞及蓋體之剖視 M398930 【主要元件符號說明】 10免針穿刺之留置針 12穿刺針 14注射針筒 20筒身 121針座 125迴流座 128凹部 22容置孔 223後端 26第一接部 123針頭 126容室 221前端 24上孔 261，281卡合槽 263,283環形容槽28第二接部 30留置管 35翼片 40第一逆止塞 50第一蓋體 60第二逆止塞 70第二蓋體 82逆止塞 84蓋體 32注射通道 42,62圓盤部 423,623定位肋 427,627 凹槽 52,72中心孔 56定位凸塊 821弧凸面 841中心孔 421,621 剖溝 425,625橫向凸塊 44,64環肋部 54,74卡合肋Positioning the protrusion, the central hole of the first cover body may be a tapered hole, and the inside of the tapered hole is incremented away from the barrel; in addition, the first backstop may have a disc portion and a ring rib, the ring rib S is axially extended from the 1B disk portion. The connecting portion includes a ring groove for the first reverse, and the ring rib portion of the plug is received therein. The towel panel is formed on the side of one side of the cylinder body to form two positioning ribs. The first backstop plug is disposed between the two positioning ribs, and the ® disk portion is adjacent to the barrel body. The side may be formed with a lateral convex = and a second groove 'the groove is formed on the lateral protrusion, and the two grooves are located on both sides of the protrusion. In addition, the disc portion is formed with an arc convex surface away from the two sides of the barrel body, and the central hole of the first cover body may be a hole, and the inner side wall surface of the center hole and the arc of the first-reverse stop plug The convex surface is attached. In one case, the needle-free puncture needle may further comprise a second flap, a delay plug and a second cover. The wing body (4) is formed into a body formed by the body of the department. And a second connecting portion, the upper hole is a micro hole extending to the top side of the barrel, the second connecting portion is formed at a top end of the upper 4 M398930 hole, and the second backstop plug is plugged The top end of the upper end of the barrel has a groove extending through the second backstop. The second cover is disposed at the second joint of the barrel and has a central hole. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to explain in detail the construction and features of the present invention, the following two preferred embodiments will be described with reference to the accompanying drawings, wherein: the first drawing is a top view of a preferred embodiment of the present invention; The drawing is an exploded view of a preferred embodiment of the present invention; the third drawing is a perspective view of a preferred embodiment of the present invention; the fourth drawing is a perspective view of a preferred embodiment of the present invention. The fifth diagram is a schematic diagram of the state of use of a preferred embodiment of the present invention (1); the sixth diagram is a schematic diagram of the use state of the present invention - the preferred embodiment (2); A schematic view of the use state of the embodiment (3); The eighth figure is a cross-sectional view of the reverse stopper and the cover body of the present invention. Referring to the first to second figures, the needle-free indwelling needle 10 provided by the preferred embodiment of the present invention comprises a barrel 20, an indwelling tube 30, two flaps 35, and a first check. The plug 4 〇, a first cover 5 〇, a second check plug 60 and a second cover 7 〇. The barrel 20 is substantially tubular and has a receiving hole 22, an upper hole 5 M398930 24, a first connecting portion 26 and a second connecting portion 28. The receiving hole 22 extends axially through the tube. The body 20' has a front end 221 and a rear end 223. The upper hole 24 extends from the receiving hole 22 to the top side of the barrel 20. The first and second connecting portions 26, 28 are respectively formed in the body. The rear end 223 of the hole 22 and the top end of the upper hole 24 are disposed, and each has an engaging groove 261, 281 and an annular receiving groove 263, 283 ', wherein the engaging groove 261, 281 is formed on the outer peripheral wall of the barrel 20, the ring The shaped grooves 263, 283 are coaxially formed on the inner side of the engaging grooves 261, 281. The indwelling tube 30 is disposed at the front end of the barrel 20 and has an injection passage 32 communicating with the front end 221 of the barrel 20 receiving hole 22, which is made of Teflon material. And flexible. The two fins 35 are integrally formed to connect the barrel 20. The first and second backstops 40, 60 are made of rubber and are respectively inserted at the rear end 223 of the receiving hole 22 of the barrel 20 and the top end of the upper hole 24, and each has a disc portion 42. 62 and a ring rib 44, 64, as shown in the second to fourth figures, the disk portion 42, 62 has a scraping groove 421, 621, two positioning ribs 423, 623, a lateral projection 425, 625 and two grooves 427, 627, The grooving grooves 421, 621 are axially penetrating the first and second counter-stops 4, 6 圆盘 of the disk portions 42, 62, and the two positioning ribs 423, 623 are formed on the disk portion 42, 62 away from the tube One side of the body 20, which assists the manufacturer in accurately and straightly cutting the sectioning grooves 421, 621 during the manufacturing process. The sectioning grooves 421, 621 are located between the two positioning ribs 423, 623 'the lateral protrusions 425, 625 and The two concave forms 427, 627 are formed on the side of the circular portion 42, 62 which is adjacent to the side of the barrel 2, and the dividing grooves 421, 621 are formed on the lateral protrusions 425, 625. The two grooves 6 iVuy893 427, 627 are located at the side The two sides of the lateral projections 425, 625 are axially extended from the disc portion 42 toward the barrel 20 and are accommodated therein. The annular body 20 in the groove 263,283. The first and second covers 50, 70 (as shown in the second figure) are respectively disposed on the first and second joints 26, 28' of the barrel 2 and have a central hole 52, 72 and a ring card. The ribs 54, 74 are a tapered hole, and the engaging ribs 54, 74 are detachably engaged with the engaging grooves 261, 281 of the barrel 20, the first cover 50 is located away from one side of the barrel 20 and is formed with two positioning projections 56. Through the above structure, the indwelling needle 1 is used in conjunction with a puncture needle 12 for the first injection. As shown in the fifth figure, the puncture needle 12 includes a needle holder 121, a needle 123 and a reflow seat 125, wherein The needle seat ι21 and the reflow seat 125 can together form a chamber 126 (as shown in FIG. 6). The user first needs to pass the needle 123 through the center of the first cover 50 through the rear end of the indwelling needle 1 . The hole 52, the groove 42 of the first backstop 40, the receiving hole 22 of the barrel 2, and the injection channel 32 of the indwelling tube 30, and the tip end of the needle 123 is exposed on the front side of the indwelling tube 30, as shown in the sixth figure. As shown, the needle = 123 tip and the indwelling f 3 〇 are then passed through the patient's skin and penetrated into the tube. At this time, the user can flow through the patient's blood along the needle 123 to the chamber 126. To confirm whether the indwelling tube 3 is inserted into the blood vessel. Then, the user can extract the fresh lining 12, and the cartridge, 14 or catheter, which is filled with the ejac, through the first cover 5 The center sub-piece (5) opens the section 42 of the third counter-stop 40 as shown in the seventh figure, so that the front end enters the barrel 20 The hole 22 t, together with the push rod of the syringe (shown in FIG. 7 M398930), the injection can be smoothly injected into the patient through the receiving hole 22 of the barrel 20 and the injection channel 32 of the barrel; After that, when the syringe 14 is used, the first reticle 4 of the first anti-stop 4 can be automatically closed by its own elasticity to avoid the residual injection in the barrel 2Q. The stop 40 flows out. In addition, the hole 24 above the barrel 20 is also available for the user to inject. Since the first-reverse stopper 40, 60 is formed by elastic deformation, even if the needle 14 is not provided with a needle, The groove 421, 621 can still be smoothly entered into the inside of the barrel 20 for injection. In addition, when the user pulls out the syringe 14, the first and second check stoppers 4_ are also two, and the elasticity of the second is automatic. The rear end of the accommodating hole 22 is closed, so that the body portion is automatically isolated from the outside, so that the convenience of use can be greatly improved; in addition, the positioning protrusion 56 of the first cover 50 of the 5 hai is inserted The puncture needle 12 has a concave portion 128 on the front side of the needle holder 121 (as shown in the fifth figure) to assist the needle 123 to be inserted into the patient's skin at a correct rotation angle; in addition, the first and second cover bodies: the central hole of the 〇 '70 52, 72 is a cone hole 'and its inner diameter is increased as it moves away from the barrel 20', so that the front end of the barrel 14 can be inserted more smoothly into the center hole 52, 72; The recesses 427^27 of the second check plugs 40, 60 allow the syringe 14 to more smoothly spread the split groove 421. In addition, the reverse stop plug The structure of the cover body can also be freely changed. Referring to the eighth figure in the month of δ, the anti-stop plug 82 can form an arc convex surface 82 away from one side of the barrel body, so that the user can easily use the alcohol cotton sheet to back up. The plug 82 is sterilized, and the t-hole 841 of the cover 84 is a taper hole, and the inner side wall surface thereof is attached to the arc convex surface 821 of the check plug 82. 8 M398930 Based on the spirit of the present invention, the needle-free puncture The indwelling needle also has a variety of changes in structure. For example, the two fins 35 can also be arranged as needed, and all such changes and modifications are to be covered in the patent scope of the present case. BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a top view of a preferred embodiment of the present invention; the second drawing is an exploded view of a preferred embodiment of the present invention; and the third drawing is a preferred embodiment of the present invention. The third figure is a perspective view of a preferred embodiment of the present invention (2); the fifth figure is a schematic diagram of the use state of a preferred embodiment of the present invention (1); A schematic diagram of the state of use of a preferred embodiment (2); Figure 7 is a schematic view showing the state of use of a preferred embodiment of the present invention (3); Figure 8 is a cross-sectional view of another preferred embodiment of the reverse stopper and the cover M398930 [Description of main components] 10 needle-free Puncture indwelling needle 12 puncture needle 14 injection syringe 20 barrel 121 needle seat 125 reflow seat 128 recess 22 housing hole 223 rear end 26 first connection portion 123 needle 126 chamber 221 front end 24 upper hole 261, 281 engagement groove 263, 283 annular receptacle 28 second joint 30 indwelling tube 35 flap 40 first check plug 50 first cover 60 second check plug 70 second cover 82 counter stop plug 84 cover 32 injection passage 42, 62 Disc portion 423, 623 positioning rib 427, 627 groove 52, 72 central hole 56 positioning projection 821 arc convex surface 841 central hole 421, 621 grooving groove 425, 625 lateral projection 44, 64 ring rib portion 54, 74 engaging rib