200817058 九、發明說明： 【發明所屬之技術領域】 本發明係有關穿刺於動脈等，而被使用於透析等之帶翼 型留置針。 【先前技術】 穿刺於動脈，而被使用於透析等之帶翼型留置針，習知 v 在使用後，以筒狀護罩外嵌於其套管針（Canula needle)。 但，在上述的方法，當外嵌護罩時，醫療從事者於保持護 罩之手指發生被套管針穿刺之所謂誤穿刺事故，使醫療從 事者有被愛滋病或肝炎等感染之顧慮。 作爲解決此問題之帶翼型留置針，有下述者被提案（例 如，參考專利文獻1)。此留置針，含有「具有套管針、與 套管針的後部插装於筒狀輪轂之前部的可動組件」、「連 接於輪轂之後部，而與套管針連通的管」、「具有保護筒 的夾持具」及「具有可撓性、黏貼於患者之手或腕的固定 用翼具備於保護筒」。管係以保護筒的外部連接於輪轂， 又，套管針、輪轂、及夾持具係藉由硬質材料形成。 而，輪轂係具備可於夾持具的軸心方向滑動，可動組件 可作成從輪轂的前端部及套管針從保護筒向前方突出的使 用位置，及作成比使用位置更後方的位置而且可變更位置 將套管針整體收納於保護筒內的收納位置，同時可動組件 由於可在上述各位置被夾持具卡脫自如地卡合，所以可動 組件在各位置可固定於夾持具。 在上述習知方面，可動組件位於收納位置時，因爲套管 針整體收納於保護筒部內，有必要使保護筒及輪轂的軸心 200817058 方向長度變長。結果，將可動組件位於使用位置時，從輪 轂與管的連接部分到固定用翼之軸心方向的距離變大。 可是，可動組件將固定於使用位置之留置針設置於患者 時，固定用翼雖黏貼於患者，而使留置針固定於患者，但 管由於某些原因（例如，患者移動、或管與什麼接觸等原 因）而向上方移動時，以固定用翼作爲支點，使留置針的 後部向上方擺動，而使留置針的前部向下方擺動。 可是，在習知方面，如上所述，因爲從輪轂與管的連接 部分至固定用翼爲止之軸心方向的距離大，因此與藉由固 定用翼之留置針的固定力比較，.欲使可動組件擺動的外力 變大，結果，套管針的針尖向下方大擺動，而有損傷動脈 之顧慮。 【專利文獻1】日本專利特開平1 0 — 85 3 3 3號公報 【發明內容】 【發明所欲解決之課題】 本發明之目的在於提供一種帶翼型留置針，可防止由於 套管針所引起的誤穿刺事故，同時使用時，即使連接於輪 轂的管向上移動，可減少套管針的針尖向下方大大地擺 動，血管等受損傷之顧慮。 【用以解決課題之手段】 爲了達成上述目的，本發明提供一種帶翼型留置針，具 有：A.可動組件，係具有套管針及套管針的後部插設於筒 狀輪轂的前部；B.管，係連接於輪轂的後部，並與套管針 連通；C.夾持具；以及D.具有可撓性的固定用翼；而可動 組件係可於夾持具之軸心方向滑動，並可變更位置於使用 200817058 位置及比使用位置更後方的收納位置，同時可動組件位於 使用位置時，可動組件可卡脫自如地卡合於夾持具，且可 動組件能固定於夾持具，其特徵在於以下之點，夾持具具 有：a.具備固定用翼之保護筒，位於夾持具的前部，當可 動組件位在使用位置時，套管針比前端更突出於前方，而 當可動組件位於收納位置時，可僅將包含套管針之針尖的 前部收納於內部，及b.導引構件，位於夾持具的後部，能 導引可動組件的滑動，同時當可動組件位於收納位置時， 與可動組件卡合，而使可動組件固定。 此外，導引構件係作成於上下方向呈面狀的板狀，並露 出於上方，當可動組件位於使用位置時，管位於導引構件 的上方，並容許導引構件朝管的上方移動。 又，亦有於導引構件上形成凹口部，以便當壓縮力作用 於軸心方向時，使導引構件朝上方撓彎成彎曲突狀。 更且，亦有可動組件具有可固定於輪轂之可動組件操作 用的操作體，而操作體含有：A.擺動臂，作成可擺動，而 當可動組件位於使用位置時，藉由擺動卡脫自如地與夾持 具卡合；以及B.滑件，對導引構件可朝軸心方向滑動；而 於導引構件後部具備有與滑件卡合，使可動組件固定於收 納位置的卡合手段。 又，亦有夾持具含有：A.呈略環狀的鎖部，係被連結於 保護筒的後端部與導引構件的前端部，而與擺動臂卡脫自 如地卡合；以及B.蓋，係延伸設置於鎖部的後方，而當可 動組件位於收納位置時，將套管針之軸心方向的中途部覆 蓋。 200817058 更且，可動組件具有：A.操作體，係作爲操作固定於輪 轂的可動組件；及B.固定體，係具備於輪轂及導引構件而 可朝軸心方向滑動，當可動組件朝收納位置移動時，不能 脫離地卡合於輪轂及導引構件，而將可動組件固定於收納 位置；又操作體具有擺動臂，係作成可擺動，且當可動組 件位於使用位置時，藉由擺動可卡脫自如地卡合於夾持具。 又，亦有固定體，係作成空心狀；於其內部插通輪轂及 導引構件；同時於固定體內部形成卡合突起及卡合凹部； 於輪轂形成卡合溝部，使卡合突起不能脫離而可卡合；於 導引構件之後部形成卡合爪，使與卡合凹部不能脫離而可 卡合。 【發明效果】 根據本發明可防止由於套管針所引起的誤穿刺事故’同 時使用時，即使連接於輪轂的管向上移動’可減少套管針 的針尖向下方大大地擺動，患者的血管等受損傷之顧慮。 根據申請專利範圍第3項之發明’當軸心方向之壓縮力 作用於導引構件時，導引構件朝上方撓彎成彎曲突狀，使 套管針的針尖指向下方斜前方’所以套管針誤穿刺醫療從 事者之顧慮減少。 根據申請專利範圍第5項之發明’由於蓋係覆蓋套管針 之軸心方向的中途部，所以’即使例如，於套管針之軸心 方向的中途部附著有患者的血液等’可防止此血液等附著 於醫療從事者。 根據申請專利範圍第6項之發明’導引構件的長度可縮 短，據此，當使用時，醫療從事者或患、者接觸導引_件之 200817058 顧慮可減少，留置針移動之顧慮可減少，因此，由於不小 心將套管針傷到患者的血管等之顧慮可減少。 【實施方式】 〔實施形態的第1例〕 以下，將本發明之實施形態的第1例根據第1圖〜第14 圖的圖式說明時，帶翼型留置針，具有：可動組件1、管2、 夾持具3及固定用翼4。 可動組件1係具備可於夾持具3之軸心方向滑動（移 動），而含有：套管針（Canule needle)6、輪轂7及操作體 8 ° 套管針6係作成細長管狀，而前端部作成尖銳狀的針尖 6A。套管針6，係例如，由不銹鋼（最好爲SUS304 )等具 有彈性之硬質材料一體形成。 輪轂7係於軸心方向兩側作成開口之圓筒狀，而套管針 6的後部被插裝於其前部。輪轂7之軸心方向的中途部， 係作成比其他部分更大的大徑部1 1。輪轂7係由具有彈性 的硬質材料，例如，氯乙烯、ABS樹脂、聚碳酸酯、聚丙 烯、聚酯、聚乙烯等的熱可塑性樹脂一體形成。 操作體8係爲了操作可動組件1者，而具有嵌合部1 3、 後方突設部14、滑件（滑動體、移動體）1 5及左右一對的 擺動臂1 6，藉由具有與輪轂7同樣彈性的硬質材料一體形 成。此外，亦有個別形成之後，再組裝者。嵌合部丨3的下 側作成具有凹口的環狀，而從其後方外嵌於輪轂7的後 部，而與輪轂7的大徑部11於軸心方向相關而抵接。後方 突設部1 4係從嵌合部1 3的左右兩側部向後方延伸設置。 200817058 後方突設部1 4係於下方開口，同時於兩側部具有窗部。滑 件15係將後方突設部14之左右兩側部的下端部連結者， 因此’於其後端部卡合突起5 1突設在上方，卡合突起51 的後面係作成前傾狀的傾斜面52。各擺動臂1 6係被突設於 從後方突設部1 4的後端部至外側方及前方。各擺動臂1 6 係藉由彈性變形而可在寬度方向擺動，在其前部於內側方 被凹設之卡合接受部20，與前面隨着朝向前方而向內側方 移動之成爲傾斜面21的凸部22向著前方而被連續設置。 φ 管2係被外嵌於輪轂7的後部，藉由黏接劑等而與輪轂 7連接，並透過輪轂7而與套管針6連通。此時，管2的連 接側端部於輪轂7的大徑部1 1之間至少夾持該操作體8之 嵌合部13的一部，以防止操作體8從輪轂7脫落。管2最 佳係半透明且具備有柔軟性之材料成形者，例如，藉由與 輪轂7相同材料一體形成。 在夾持具3係具備可動組件1可在軸心方向移動，而可 作成如第1〜7圖所示之使用位置及如第8〜14圖所示，變更 φ 爲比使用位置更後方的收納位置。夾持具3係具有鎖部 25、保護筒26、導引構件27、蓋28，並藉由與輪轂7相同 硬質材料一體形成。 鎖部25呈（略）環狀，其軸心方向中途部的內面作成比前 端部更大徑之大徑部30,而在裏面大徑部30與前端部的邊 界部，於後方形成呈現面狀的階梯面3 1，當可動組件1位 於使用位置時，輪轂7的大徑部1 1嵌入該大徑部30內， ‘與階梯面3 1於軸心方向相關而抵接。從鎖部25，於上方作 成彎曲突狀的蓋28突設於後方，而當可動組件1位於收納位 -10- 200817058 置時，將套管針6之軸心方向的中途部覆蓋。又，在其左 右兩側卡合部32配設於上下方向，同時在卡合部32的前 方側，擺動臂16的突部22插脫自如地插入使可動組件1 固定於使用位置之插脫口 54於寬度方向貫通形成。 保護筒26係從鎖部25的前端部朝前方突設，當可動組 件1位於使用位置時，輪轂7的前部可於軸心方向滑動（移 動）插入保護筒26的內部，而使輪轂7的前端部及套管針 6比保護筒26更向前方突出。又，當可動組件1位於收納 0 位置時，可僅將包含套管針6之針尖6A的前部收納於保護 筒26內部。藉由此，使保護筒26及輪轂7之軸心方向的 長度變短，使可動組件1位於使用位置時，有關從輪轂7 與管2的連接部分至固定用翼4之軸心方向的距離變小。 導引構件27係將可動組件1朝軸心方向導引者，於軸心 方向作成細長板狀，並於上下方向呈面板狀。於導引構件 27的下方配置滑件1 5可朝軸心方向滑動，在導引構件27 的下面，滑件15的卡合突起51在內部滑動之導引溝部27A 凹設於上方。又，於導引構件27的後端部形成3型狀的切 0 入’作成可上下方向擺動且配置有成爲卡合手段的卡合片 55。在卡合片55後部的下面，當可動組件1到達收納位置 時卡合突起51不能脫離而可卡合之卡合凹部56凹設於上 方’卡合片55之前部的下面，即，在下面卡合凹部56的 前側部分，作成往前上升的傾斜面57。導引構件27係突設 於從鎖部25之後部的下端部到後方。在導引構件27的前 部’從下面側形成被凹設的凹設部（鉸鏈、凹口部）27 B。 據此，當軸心方向的壓縮力作用於導引構件27時，用於使 -11- 200817058 導引構件27朝上方撓彎成彎曲突狀。此外，凹設部27 B之 內部的後面作成往前上升的傾斜狀。 固定用翼4係一體形成於保護筒26，具有從保護筒26 向外側方延伸設置之左右一對的翼部4 1。固定用翼4雖與 輪轂7藉由同樣材料一體形成，但具有柔軟性及彈性。翼 部4 1係黏貼於患者的腕或手等。 根據上述構成例，在使用帶翼型留置針時，如第1〜7圖 所示，可動組件1係位於使用位置，輪轂7的前端部及套 管針6係從保護筒26的前方突出。又，可動組件1之操作 體8的突部22卡合於夾持具3之鎖部25的卡合部32，而 使可動組件1被固定於使用位置。 欲將帶翼型留置針固定於患者之手或腕時，把套管針6 穿剌於患者之手或腕等的動脈等，同時將固定用翼4黏貼 於患者的手或腕等，使帶翼型留置針固定於患者。 可是，管2由於某些原因以致向上方或左右移動時，管 2的移動傳給可動組件1，例如可動組件1的後部朝上方擺 動時，則可動組件1的前部，即套管針6向下方擺動。此 擺動因爲使固定於患者的固定用翼4成爲支點而發生，所 以從固定用翼4至管2的動作未被阻礙部分的距離越大， 傳給套管針6的擺動越大。習知之帶翼型留置針，收納套 管針之夾持具的全長度長，又，因爲管係被連接於與夾持 具之全長度約等長的輪轂末端，所以從固定用翼至管的動 作未被阻礙的部分，即至管與輪轂之連接部分的軸心方向 距離大。 但，本發明之帶翼型留置針因夾持具3之後方係以導引 -12- 200817058 構件27構成，故管2露出於上方及左右方向，而輪轂7也 與設置在夾持具3之前方的保護筒26、鎖部25及蓋28的 全長大致相等的長度。因此，從固定用翼4至管2與輪轂 7之連接部分的軸心方向距離格外地變短，由於管移動之 套管針6的擺動也可變小，可使套管針6之針尖6A損傷動 脈等之顧慮可減少。 將留置針從患者拔出時，首先，使可動組件1的操作體 8的擺動臂1 6向內側方擺動，讓擺動臂1 6的突部22從夾 _ 持具3之鎖部25的卡合部32脫離後，使可動組件1向後 方滑動，僅將包含套管針6之針尖6A的前部收納於保護筒 26。藉由此，可防止醫療從事者之手指等因套管針6穿刺 之所謂誤穿刺事故，可減少醫療從事者被愛滋病或肝炎等 感染之顧慮。 又，上述之際，因爲上側的蓋28覆蓋套管針6之軸心方 向的中途部，所以，即使例如於套管針6之軸心方向的中 途部附著有患者的血液等，亦可防止此血液等附著於醫療 從事者。 ^ 又，可動組件1在上述滑動時，滑件1 5若到達導引構件 27的後部，則滑件1 5之卡合突起5 1的傾斜面5 2便與導引 ，構件27之卡合片5 5的傾斜面5 7抵接，使卡合片5 5朝上 方擺動，使卡合突起51不能脫離卡合片55的卡合凹部56 而可卡合，同時卡合片55藉由彈性復原力恢復到原位置， 使可動組件1被固定在收納位置。 可是，上述之際，於保護筒26的後方側有外力作用，致 使導引構件27於軸心方向有壓縮力作用時，若於導引構件 -13-[Technical Field] The present invention relates to a winged indwelling needle for use in dialysis or the like for puncture of an artery or the like. [Prior Art] A winged indwelling needle that is used for dialysis or the like, which is used for dialysis, etc., is conventionally used. After use, a cylindrical shield is externally fitted to a canula needle. However, in the above method, when the shield is externally inserted, the medical practitioner causes a so-called accidental puncture accident in which the needle of the shield is punctured by the trocar, and the medical practitioner is infected with AIDS or hepatitis. As a winged indwelling needle for solving this problem, the following is proposed (for example, refer to Patent Document 1). The indwelling needle includes a "movable component having a trocar and a rear portion of the trocar inserted in a front portion of the tubular hub", "a tube connected to the rear portion of the hub and communicating with the trocar", and "protection" The holder of the cartridge and the "fixing wing having flexibility and adhesion to the patient's hand or wrist are provided in the protective cylinder". The pipe system is connected to the hub by the outside of the protection cylinder, and the trocar, the hub, and the clamp are formed of a hard material. Further, the hub is slidable in the axial direction of the clamp, and the movable assembly can be used as a use position from the front end portion of the hub and the trocar protruding forward from the protective cylinder, and can be made rearward than the use position and can be At the changing position, the trocar is entirely accommodated in the storage position in the protective cylinder, and the movable assembly is detachably engaged by the clamp at each of the above positions, so that the movable assembly can be fixed to the clamp at each position. In the above-described conventional aspect, when the movable member is placed in the storage position, since the entire trocar is housed in the protective cylinder portion, it is necessary to lengthen the axial direction of the protective cylinder and the hub in the direction of the axis of the hub 200817058. As a result, when the movable assembly is placed at the use position, the distance from the connecting portion of the hub to the tube to the axial direction of the fixed wing becomes large. However, when the movable component is placed on the patient in the indwelling needle fixed at the use position, the fixing wing is attached to the patient, and the indwelling needle is fixed to the patient, but the tube is for some reason (for example, the patient moves, or the tube contacts with) When moving upwards, the rear portion of the indwelling needle is swung upward by the fixing wing as a fulcrum, and the front portion of the indwelling needle is swung downward. However, in the conventional aspect, as described above, since the distance from the connecting portion of the hub to the tube to the axial direction of the fixing wing is large, it is compared with the fixing force of the indwelling needle by the fixing wing. The external force of the movable component is increased, and as a result, the needle tip of the trocar is swung downward, and there is a concern that the artery is damaged. [Patent Document 1] Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. Hei. No. 10-85 3 3 No. 3 of the Invention [Problem to be Solved by the Invention] It is an object of the present invention to provide a wing-shaped indwelling needle which can be prevented by a trocar When the accidental puncture accident is caused, even if the tube connected to the hub moves upward, the needle tip of the trocar can be greatly swung downward, and the blood vessel or the like is damaged. [Means for Solving the Problem] In order to achieve the above object, the present invention provides a winged indwelling needle having: A. a movable assembly having a rear portion of a trocar and a trocar inserted in a front portion of a cylindrical hub B. tube, connected to the rear of the hub and connected to the trocar; C. clamp; and D. flexible fixed wing; and the movable component can be in the axial direction of the clamp Sliding, and can change the position to use the position of 200817058 and the storage position behind the use position. At the same time, when the movable component is in the use position, the movable component can be freely engaged with the clamp, and the movable component can be fixed to the clamp. The utility model is characterized in that the clamping device has: a. a protective cylinder with a fixing wing, which is located at the front part of the clamping device, and the trocar protrudes more than the front end when the movable component is in the use position. And when the movable component is in the storage position, only the front portion including the needle tip of the trocar is housed inside, and b. the guiding member is located at the rear of the clamping device, and can guide the sliding of the movable component while Movable component When in the stowed position, the movable assembly engages the movable component is fixed. Further, the guiding member is formed in a plate shape which is planar in the up-and-down direction and is exposed upward. When the movable assembly is in the use position, the tube is positioned above the guiding member and allows the guiding member to move upward over the tube. Further, a notch portion is formed on the guiding member so that when the compressive force acts on the axial direction, the guiding member is bent upward to be curved. Moreover, the movable assembly also has an operating body for operating the movable assembly that can be fixed to the hub, and the operating body includes: A. the swinging arm is made to be swingable, and when the movable component is in the use position, the swinging card is freely movable. The ground is engaged with the clamp; and B. the slide member is slidable in the axial direction of the guide member; and the rear portion of the guide member is provided with a snapping means for engaging with the slide member to fix the movable assembly to the storage position . Further, the holder further includes: A. a slightly annular lock portion that is coupled to the rear end portion of the protection cylinder and the front end portion of the guide member, and is detachably engaged with the swing arm; and B The cover is extended at the rear of the lock portion, and covers the midway portion of the trocar in the axial direction when the movable assembly is at the storage position. 200817058 Moreover, the movable assembly has: A. an operating body as a movable component fixed to the hub; and a fixed body that is slidable in the axial direction of the hub and the guiding member, and the movable component is slid toward the housing When the position is moved, the movable component can be fixed to the storage position without being disengaged from the hub and the guiding member; and the operating body has the swinging arm, which is made to be swingable, and can be swinged when the movable component is in the use position. The card is freely engaged with the holder. Moreover, the fixing body is also formed in a hollow shape; the hub and the guiding member are inserted into the inside; and the engaging protrusion and the engaging recess are formed in the fixing body; the engaging groove is formed in the hub, so that the engaging protrusion cannot be disengaged The engaging member is formed at a rear portion of the guiding member so as to be disengageable from the engaging recess portion and engageable. [Effect of the Invention] According to the present invention, it is possible to prevent an accidental puncture accident caused by a trocar. When the device is used, even if the tube connected to the hub moves upward, the needle tip of the trocar can be greatly swung downward, the patient's blood vessel, etc. The fear of injury. According to the invention of claim 3, when the compressive force in the axial direction acts on the guiding member, the guiding member is bent upward to be curved, so that the needle tip of the trocar points downward obliquely forward. The concerns of the needle-puncture medical practitioners are reduced. According to the invention of the fifth aspect of the patent application, since the cover system covers the midway portion of the axial direction of the trocar, even if, for example, the blood of the patient is attached to the middle portion of the trocar in the axial direction, it is prevented. This blood or the like is attached to a medical practitioner. According to the invention of claim 6 of the patent application, the length of the guiding member can be shortened, and accordingly, when used, the concern of the medical practitioner or the patient and the contact guide can be reduced, and the concern of the indwelling needle can be reduced. Therefore, the fear of inadvertently injuring the trocar into the patient's blood vessel or the like can be reduced. [Embodiment] [First example of the embodiment] Hereinafter, a first example of an embodiment of the present invention will be described with reference to the drawings of Figs. 1 to 14 . The winged indwelling needle has a movable member 1. The tube 2, the holder 3 and the fixing wing 4. The movable assembly 1 is provided to be slidable (movable) in the axial direction of the holder 3, and includes: a canule needle 6, a hub 7, and an operating body 8°. The trocar 6 is formed into an elongated tubular shape, and the front end The tip is made into a sharp needle tip 6A. The trocar 6 is integrally formed of, for example, a resilient hard material such as stainless steel (preferably SUS304). The hub 7 is formed in an open cylindrical shape on both sides in the axial direction, and the rear portion of the trocar 6 is inserted in the front portion thereof. The middle portion of the hub 7 in the axial direction is formed as a larger diameter portion 11 than the other portions. The hub 7 is integrally formed of a thermoplastic material having elasticity, for example, a thermoplastic resin such as vinyl chloride, ABS resin, polycarbonate, polypropylene, polyester, or polyethylene. The operation body 8 has a fitting portion 13 , a rear protruding portion 14 , a slider (sliding body, a moving body) 15 , and a pair of left and right swing arms 1 6 in order to operate the movable unit 1 . The hub 7 is also formed of a rigid, rigid material. In addition, there are also individual formations that are reassembled. The lower side of the fitting portion 3 is formed into a ring shape having a notch, and is fitted to the rear portion of the hub 7 from the rear side thereof, and is in contact with the large-diameter portion 11 of the hub 7 in the axial direction. The rear protruding portion 14 is extended rearward from the left and right side portions of the fitting portion 13. 200817058 The rear protruding portion 14 is opened at the lower side and has a window portion at both sides. Since the slider 15 connects the lower end portions of the right and left side portions of the rear projecting portion 14, the rear end portion of the engaging projections 5 is protruded upward, and the rear surface of the engaging projections 51 is inclined forward. Inclined surface 52. Each of the swing arms 16 is protruded from the rear end portion of the rear projecting portion 14 to the outer side and the front side. Each of the swing arms 16 is configured to be swingable in the width direction by elastic deformation, and the engagement receiving portion 20 that is recessed on the inner side in the front portion thereof is moved toward the front side toward the front side to become the inclined surface 21 The convex portion 22 is continuously provided toward the front. The φ tube 2 is externally fitted to the rear portion of the hub 7, and is connected to the hub 7 by an adhesive or the like, and communicates with the trocar 6 through the hub 7. At this time, the connecting side end portion of the pipe 2 sandwiches at least a portion of the fitting portion 13 of the operating body 8 between the large diameter portions 11 of the hub 7, to prevent the operating body 8 from coming off the hub 7. The tube 2 is preferably a translucent material having a soft material, for example, formed integrally with the same material as the hub 7. In the holder 3, the movable unit 1 can be moved in the axial direction, and the position of use as shown in the first to seventh figures can be made, and as shown in Figs. 8 to 14, the change φ is later than the use position. Storage location. The holder 3 has a lock portion 25, a protective cylinder 26, a guide member 27, and a cover 28, and is integrally formed of the same hard material as the hub 7. The lock portion 25 has a (slightly) annular shape, and the inner surface of the intermediate portion in the axial direction is formed as a large diameter portion 30 having a larger diameter than the distal end portion, and is formed at the rear portion of the inner large diameter portion 30 and the distal end portion. The planar step surface 3 1, when the movable unit 1 is in the use position, the large diameter portion 1 1 of the hub 7 is fitted into the large diameter portion 30, and is in contact with the step surface 31 in the axial direction. From the lock portion 25, a cover 28 having a curved projection shape is protruded from the rear, and when the movable unit 1 is placed at the storage position -10- 200817058, the midway portion of the trocar 6 in the axial direction is covered. Further, the left and right engaging portions 32 are disposed in the vertical direction, and at the front side of the engaging portion 32, the protruding portion 22 of the swing arm 16 is detachably inserted into the insertion opening for fixing the movable unit 1 to the use position. 54 is formed to penetrate in the width direction. The protective cylinder 26 protrudes forward from the front end portion of the lock portion 25. When the movable assembly 1 is in the use position, the front portion of the hub 7 can be slid (moved) in the axial direction to be inserted into the inside of the protective cylinder 26, so that the hub 7 is made The front end portion and the trocar 6 protrude further forward than the protective tube 26. Further, when the movable unit 1 is placed at the storage 0 position, only the front portion of the needle tip 6A including the trocar 6 can be housed inside the protective tube 26. Thereby, the length of the protection cylinder 26 and the hub 7 in the axial direction is shortened, and when the movable unit 1 is in the use position, the distance from the connection portion of the hub 7 to the tube 2 to the axial direction of the fixed wing 4 is obtained. Become smaller. The guide member 27 guides the movable unit 1 in the axial direction, and has an elongated plate shape in the axial direction and a panel shape in the vertical direction. The slider 15 is disposed below the guide member 27 so as to be slidable in the axial direction. On the lower surface of the guide member 27, the guide groove portion 27A in which the engagement projection 51 of the slider 15 slides inside is recessed upward. Further, in the rear end portion of the guide member 27, a three-shaped cut-and-received portion is formed so as to be swingable in the vertical direction, and the engaging piece 55 serving as the engaging means is disposed. On the lower surface of the rear portion of the engaging piece 55, when the movable unit 1 reaches the storage position, the engaging projection 51 cannot be disengaged, and the engageable engaging recess 56 is recessed below the front portion of the upper 'engagement piece 55, that is, below. The front side portion of the engagement recess 56 is formed as an inclined surface 57 that rises forward. The guide member 27 is formed to protrude from the lower end portion of the rear portion of the lock portion 25 to the rear. A recessed portion (hinge, notch portion) 27B is formed in the front portion of the guide member 27 from the lower side. According to this, when the compressive force in the axial direction acts on the guiding member 27, the guiding member 27 is bent upward to be curved in a curved shape. Further, the rear surface of the inside of the recessed portion 27B is formed in an inclined shape which rises forward. The fixing wings 4 are integrally formed in the protective cylinder 26, and have a pair of left and right wing portions 41 that extend outward from the protective cylinder 26. The fixing wing 4 is integrally formed of the same material as the hub 7, but has flexibility and elasticity. The wing portion 41 is attached to a wrist or hand of a patient. According to the above configuration example, when the airfoil type indwelling needle is used, as shown in Figs. 1 to 7, the movable unit 1 is placed at the use position, and the front end portion of the hub 7 and the sleeve needle 6 project from the front side of the protective tube 26. Further, the projection 22 of the operating body 8 of the movable unit 1 is engaged with the engaging portion 32 of the lock portion 25 of the holder 3, and the movable unit 1 is fixed to the use position. When the winged indwelling needle is to be fixed to the patient's hand or wrist, the trocar 6 is passed through the artery of the patient's hand or wrist, and the fixing wing 4 is adhered to the patient's hand or wrist. The winged indwelling needle is fixed to the patient. However, when the tube 2 is moved upward or leftward for some reason, the movement of the tube 2 is transmitted to the movable assembly 1, for example, when the rear portion of the movable assembly 1 is swung upward, the front portion of the movable assembly 1, that is, the trocar 6 Swing down. This swing occurs because the fixing wing 4 fixed to the patient becomes a fulcrum, so that the larger the distance from the fixing wing 4 to the unobstructed portion of the tube 2, the larger the swing transmitted to the trocar 6. The conventional wing-shaped indwelling needle has a full length of the holder for accommodating the trocar, and since the tube is connected to the end of the hub which is about the same length as the entire length of the holder, the fixing wing to the tube The unimpeded portion of the motion, that is, the distance from the axial direction of the connecting portion of the tube to the hub is large. However, the winged indwelling needle of the present invention is constituted by the guide member -12-200817058 member 27 after the holder 3, so that the tube 2 is exposed in the upper and left and right directions, and the hub 7 is also disposed on the holder 3 The entire protective tube 26, the lock portion 25, and the lid 28 have substantially the same length. Therefore, the distance from the fixing wing 4 to the axial direction of the connecting portion of the tube 2 and the hub 7 becomes exceptionally short, and since the swing of the trocar 6 of the tube movement is also small, the needle tip 6A of the trocar 6 can be made. The concern of damaging the arteries and the like can be reduced. When the indwelling needle is pulled out from the patient, first, the swing arm 16 of the operating body 8 of the movable unit 1 is swung inward, and the projection 22 of the swing arm 16 is pulled from the card of the lock portion 25 of the holder 3. After the joint portion 32 is detached, the movable unit 1 is slid rearward, and only the front portion of the needle tip 6A including the trocar 6 is housed in the protective tube 26. As a result, it is possible to prevent a so-called accidental puncture accident caused by a puncturing of a trocar 6 by a finger of a medical practitioner, and it is possible to reduce the risk of infection of a medical practitioner by AIDS or hepatitis. In addition, since the upper cover 28 covers the middle portion of the trocar 6 in the axial direction, it is possible to prevent the blood of the patient from adhering to the middle portion of the trocar 6 in the axial direction, for example. This blood or the like is attached to a medical practitioner. ^ Further, when the movable member 1 is slid, the sliding member 15 reaches the rear portion of the guiding member 27, and the inclined surface 52 of the engaging projection 5 1 of the sliding member 15 is engaged with the guiding member 27 The inclined surface 57 of the sheet 5 5 abuts, and the engaging piece 55 is swung upward, so that the engaging projection 51 cannot be disengaged from the engaging recess 56 of the engaging piece 55, and the engaging piece 55 can be engaged by elasticity. The restoring force is restored to the original position, and the movable unit 1 is fixed at the storage position. However, in the above case, an external force acts on the rear side of the protective cylinder 26, so that when the guiding member 27 has a compressive force in the axial direction, if the guiding member -13-
200817058 27形成凹設部27B，則因爲導引構件27朝上方撓彎成 突狀’故套管針6之針尖6A成爲指向下斜前方，穿刺 從事者之顧慮少。 〔實施形態的第2例〕 第1 5圖〜第28圖係顯示本發明之實施形態的第2例 說明與第丨例的主要相異點，則在可動組件1的操作骨 係從嵌合部1 3的左右兩側部，後方突設部1 4突設於卷 滑件1 5係從嵌合部13的下端部突設於下方，成爲倒 型狀，由上部側的滑動部1 8，與寬度比滑動部1 8更寬 防脫部19而成。擺動臂16作成單一，從兩後方突設 的後端部突設於上方及前方，藉由彈性變形而可上下 擺動。在擺動臂16的前端部，於下方凹設之卡合接 20,與向上方突出且前端面作成後傾狀的傾斜面21之 22朝向前方連續設置。又在擺動臂1 6的軸心方向的 部，有立設爲了將擺動臂1 6向下方按壓操作的操作部 在夾持具3之鎖部25的上端部，於寬度方向橫設有 部32，當可動組件1位於使用位置時，在操作體8的 臂16，由於突部22的傾斜面21係與卡合部32抵接， 動臂16向下方擺動，卡合部32相對於擺動臂16的， 受部20從上方卡脫自如地卡合，使可動組件1被固定 用位置。 導引構件27的寬度方向中央部作成比兩側部更上 位置，成爲浮起的狀態。在導引構件27的寬度方向 部，於上下方向貫通形成之導引溝3 4形成於軸心方ιΐ 作體8之滑件1 5的滑動部1 8被插入於此導引溝34， 彎曲 醫療 卜若 18, I方。 立Τ 廣的 部14 方向 受部 突部 中途 ,23 ° 卡合 ί擺動 使擺 :合接 [於使 :面的 I中央 力，操 而被 -14- 200817058 導引於軸心方向，同時藉由滑件1 5的防脫部1 9，可防止滑 件15從導引溝34脫離。此外，防脫部19於導引構件27 的下面側作成收納狀。在導引溝34的軸心方向中途部，比 滑件15的防脫部19形成更大一圈的插入口 35，而將滑件 15的滑動部18插入導引溝34時，滑件15從上方插入於此 插入口 35。在導引溝34的後部，作爲卡合手段，作成比其 他部分寬度更廣的寬廣部36，與其他部分作成同樣寬度之 卡合溝部37朝向後方連續設置，從寬廣部36之前緣部的 0 左右兩側，作成於外側方可擺動之左右一對的擺動片部3 8 突設於後方。各擺動片部38的後部隨著朝後方寬廣部36 的寬度方向中央部移行作成傾斜狀，而兩擺動片部3 8的後 端部係透過若干的間隙而對向。又，可動組件1位於使用 位置時，滑件15位於導引溝34的前端部，可動組件1位 於收納位置時，滑件15位於卡合溝部37，同時滑件15從 卡合溝部37之脫離係藉由擺動片部3 8予以阻止。 蓋28係立設於導引構件27之前部的左右兩側部，同時 0 其前端部被連結於鎖部25，於外側方作成彎曲突狀，當可 動組件1位於收納位置時，將套管針6之軸心方向的中途 部覆蓋。 固定用翼4係與保護筒26個別作成，而具有位於寬度方 向中央部的外嵌部40,及從外嵌部40向外側方廷伸被設置. 之左右一對的翼部41，藉由與輪轂7同樣的材料一體形 成。外嵌部40係外嵌於保護筒26並予以固定。此外，亦 可將固定用翼4與第1例同樣與保護筒26 —體形成。又， 翼部41的背面爲了確實地固定於患者，亦可如第1 8圖所 -15- 200817058 示形成具有複數之凹凸的表面者。 在上述構成例，將可動組件1從如第1 5〜2 1圖所示的使 用位置，移動到如第22〜28圖所示的收納位置時，使可動 組件1之操作體8的擺動臂1 6藉由操作部23按壓於下方’ 使突部22從夾持具3之鎖部25的卡合部32脫離之後，將 可動組件1滑動到收納位置，僅將包含可動組件1之套管 針6之針尖6A的前部收納於保護筒26及鎖部25的內部。 又，上述之際，左右的蓋28將套管針6之軸心方向的中途 0 部覆蓋。 另外，可動組件1在上述滑動時，操作體8的滑件15雖 移動於可動組件1之導引構件27的導引溝34內，但因爲 滑件1 5的防脫部1 9作成收納狀於導引構件27的下面，所 以滑件1 5不會接觸到患者的手或腕。 又，可動組件1在上述滑動時，滑件1 5若到達導引溝34 的後部時，滑件1 5係與兩擺動片部3 8抵接，使兩擺動片 部3 8彈性變形，一面向外側方擺動一面押開，使滑件1 5 _ 的滑動部18到達導引溝34的卡合溝部37內。而，滑動部 1 8若通過，藉由彈性復原力使兩擺動片部3 8恢復到原位 置，阻止滑件15從卡合溝部37脫離。藉由此，可動組件1 被固定於收納位置。 〔實施形態的第3例〕 第29圖~第45圖係顯示本發明之實施形態的第3例，係 第1例的變形例，若說明其相異點，則爲由輪轂7的大徑 部1 1之靠近前部側，作成比大徑部1 1更小直徑，且於軸 心方向維持一定直徑的小徑部6 1、朝著後方作成錐面狀的 -16- 200817058 推拔部62,於外周面卡合溝部63涵蓋全周所形成之周 64、與作成與推拔部62的前端同一外徑而且於軸心方 成一定直徑的一定直徑部65而成，而上述各部係連續 於軸心方向。 可動組件1具有空心狀的固定體67。固定體67係作 端部凹口且大致環狀，而與輪轂7同樣藉由具有彈性 質材料一體形成。固定體67係比輪轂7的大徑部11 部側而可於軸心方向滑動而被外嵌於導引構件27，在 0 周面形成朝徑方向內方突出之卡合突起68。在可動組 的使用位置，卡合突起68係與輪轂7的大徑部1 1於 方向相關而抵接，又，藉由少許間隙而對向。在固定 的下部，於前後方向及下方形成開口之空洞部69，在 洞部69內插通有鎖部25及導引構件27。在空洞部69 前部的左右兩側面，形成向外側方被凹設之卡合凹部 周時空洞部69內後部之左右兩側的內面，係作成隨着 方而朝內側方移行的傾斜面7 1。 導引構件27之軸心方向作成短的長度，而在其後端 胃 於軸心方向作成約與蓋28的後端同位置。導引構件 後部作成左右一對的卡合爪73。卡合爪73藉由彈性義 可作成左右擺動，而其後端部係作成向外側方突出之 74。各爪部74向固定體67的後方移動時_，與固定體 卡合凹部70不能脫離地卡合，而固定於固定體67。 在上述構成例，將可動組件1從如第29圖〜第36圈 之使用位置移動到如第37圖〜第45圖所示的收納位辱 使可動組件1之操作體8的擺動臂1 6向內側方擺動， 溝部 向作 設置 成上 的硬 更前 其內 件1 軸心 體67 此空 內之 70， 向前 卜關 27的 I形， .爪部 67的 1所示 i時， 將操 17- 200817058 作體8的突部22從夾持具3之鎖部25的卡合部32脫離之 後，將可動組件1拉到後方。 據此，可動組件1係與管2 —起移動到後方的收納位置， 可僅將包含套管針6之針尖6 A的前部收納於保護筒2 6。 此移動時，輪轂7的小徑部61及推拔部62係與固定體67 的卡合突起68滑動。而，推拔部62與卡合突起68滑動時， 固定體67向徑方向外方彈性變形，上述滑動後，固定體67 向徑方向內方彈性恢復，使固定體67的卡合突起68於輪 φ 轂7的卡合溝部63內不能脫離而可落下卡合，令輪轂7與 固定體67被固定。 又，此固定後（或於固定前），固定體67的傾斜面71 係與導引構件2 7之卡合爪7 3的爪部7 4抵接，向軸心方向 滑動，藉由此，卡合爪73透過彈性變形向內側方擺動。上 述滑動結束時，卡合爪73彈性恢復，向外側方擺動，其爪 部74於固定體67的卡合凹部70不能脫離地卡合，使固定 體67被固定於收納位置。如上述進行，可動組件1被固定 0 於收納位置。 在上述第3例，固定體67係具備將輪轂7、鎖部25及導 引構件27可於軸心方向滑動，當可動組件1朝收納位置移 動時，於輪轂7及導引構件27不能脫離地卡合，由於可動 組件1可固定於收納位置，所以導引構件27的長度可變 短。據此，使用時，醫療從事者或患者接觸導引構件27之 顧慮可減少，可減少留置針移動之顧慮，同時由於不小心 將套管針6刺傷患者之血管等之顧慮可減少。 此外，在實施形態的第1例及第3例，卡合部係相對地 -18- 200817058 從外側方卡合於卡合凹部，但反之亦可相對地從內側方卡 合。又，在上述實施形態的第2例，係將卡合部從上方相 對地卡合於卡合凹部，但反之亦可從下方相對地卡合。此 外’在第2例及第3例，於導引構件未形成有凹設部，但 亦可形成。 【·圖式簡單說明】 第1圖係顯示本發明之實施形態的第1例立體圖。 第2圖係第1圖的側視圖。 0 第3 .圖係第1圖的俯視圖。 第4圖係第1圖的仰視圖。 第5圖係第1圖的A - A線箭視剖面圖。 第6圖係第1圖的B — B線箭視剖面圖。 第7圖係第5圖的C 一 C線箭視剖面圖。 第8圖係顯示第1圖的可動組件位於收納位置狀態的立 體圖。 第9圖係第8圖的側視圖。 I 第10圖係第8圖的俯視圖。 _ 第11圖係第8圖的仰視圖。 第1 2圖係第11圖的D — D線箭視剖面圖。 第1 3圖係第1 2圖的E — E線箭視剖面圖。 第1 4圖係第1 2圖的F - F線箭視剖面圖。 第1 5圖係顯示本發明之實施形態的第2例立體圖。 第1 6圖係第1 5圖的側視圖。 第1 7圖係第1 5圖的俯視圖。 第1 8圖係第1 5圖的仰視圖。 -19- 200817058 第1 9圖係第1 5圖的G — G線箭視剖面圖。 第20圖係第15圖的Η— Η線箭視剖面圖。 第2 1圖係第1 9圖的；ί — J線箭視剖面圖。 第22圖係顯示第1 5圖的可動組件位於收納位置狀態的 立體圖。 第23圖係第22圖的側視圖。 第24圖係第22圖的俯視圖。 第25圖係第22圖的仰視圖。 φ 第26圖係第25圖的Κ - Κ線箭視剖面圖。 第27圖係第26圖的L — L線箭視剖面圖。 第28圖係第26圖的Μ - Μ線箭視剖面圖。 第29圖係顯示本發明之實施形態的第3例立體圖。 第3 0圖係第2 9圖的側視圖。 第31圖係第29圖的俯視圖。 第32圖係第29圖的仰視圖。 第33圖係第32圖的Ν— Ν線箭視剖面圖。 0 第34圖係第33圖的Ρ - Ρ線箭視剖面圖。 第3 5圖係第3 3圖的Q — Q線箭視剖面圖。 第3 6圖係第3 3圖的R - R線箭視剖面圖。 第37圖係顯示第29圖的可動組件位於收納位置狀態的 立體圖。 第3 8圖係第3 7圖的側視圖。 第3 9圖係第3 7圖的俯視圖。 第4 0圖係第3 7圖的仰視圖。 第41圖係第40圖的3—3線箭視剖面圖。 -20- 200817058 第42圖係第4 1圖的T 一 T線箭視剖面圖。 第43圖係第4 1圖的U - U線箭視剖面圖。 第44圖係第4 1圖的V _ V線箭視剖面圖。 第45圖係第4 1圖的W - W線箭視剖面圖。 【主要元件符號說明】 1 可動組件 2 管 3 夾持具 φ 4 固定用翼 6 套管針 6Α 針尖 7 輪轂 8 操作體 15 滑件 · 16 擺動臂 25 鎖部 0 26 保護筒 27 導引構件 27Β 凹口部 28 蓋 34 導引溝 37 卡合溝部 38 擺動片部 5 1 卡合突起 5 5 卡合片 / -21- 200817058 56 卡合凹部 63 卡合溝部 67 固定體 68 卡合突起 69 空洞部 70 卡合凹部 73 卡合爪 -22When the recessed portion 27B is formed in 200817058, the guide member 27 is bent upward to form a protruding shape, so that the needle tip 6A of the trocar 6 is directed downward and obliquely forward, and the puncture practitioner has less concern. [Second example of the embodiment] Figs. 15 to 28 show a difference between the second example of the embodiment of the present invention and the third example, and the operation of the movable unit 1 is performed from the fitting. The right and left side portions of the portion 13 and the rear projecting portion 14 project from the winder 15 are protruded downward from the lower end portion of the fitting portion 13, and are formed in an inverted shape, and the sliding portion 18 on the upper side is formed. It is formed to have a wider anti-drop portion 19 than the sliding portion 18. The swing arm 16 is formed in a single shape, and the rear end portions projecting from the rear sides are protruded upward and forward, and are swingable up and down by elastic deformation. At the front end portion of the swing arm 16, the engaging portion 20 which is recessed downward is provided continuously toward the front side with respect to the inclined surface 21 which protrudes upward and which is inclined rearwardly. Further, in the portion in the axial direction of the swing arm 16 , the operation portion that presses the swing arm 16 downward is provided at the upper end portion of the lock portion 25 of the clamp 3, and the portion 32 is horizontally arranged in the width direction. When the movable unit 1 is in the use position, the arm 16 of the operating body 8 is abutted against the engaging portion 32 by the inclined surface 21 of the projection 22, and the boom 16 is swung downward, and the engaging portion 32 is opposed to the swing arm. In the case of the receiving portion 20, the receiving portion 20 is freely engaged from above, and the movable unit 1 is fixed. The center portion in the width direction of the guide member 27 is formed at a position higher than the both side portions, and is in a floating state. In the width direction portion of the guide member 27, the guide groove 34 formed in the vertical direction is formed in the shaft center. The sliding portion 18 of the slider 15 is inserted into the guide groove 34, and is bent. Medical Bu Ruo 18, I party. The direction of the 14th part of the Τ 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广 广The slider 15 is prevented from being detached from the guide groove 34 by the retaining portion 19 of the slider 15. Further, the retaining portion 19 is formed in a storage shape on the lower surface side of the guide member 27. In the middle of the axial direction of the guide groove 34, a larger opening of the insertion opening 35 is formed than the retaining portion 19 of the slider 15, and when the sliding portion 18 of the slider 15 is inserted into the guide groove 34, the slider 15 is inserted. The insertion port 35 is inserted from above. In the rear portion of the guide groove 34, as the engaging means, a wide portion 36 having a wider width than the other portions is formed, and the engaging groove portion 37 having the same width as the other portions is continuously provided rearward, and the front edge portion of the wide portion 36 is 0. On the left and right sides, a pair of left and right swinging piece portions 3 8 which are swingable on the outer side are protruded from the rear. The rear portion of each of the oscillating piece portions 38 is inclined in a direction toward the central portion in the width direction of the rear wide portion 36, and the rear end portions of the two oscillating piece portions 38 are opposed to each other through a plurality of gaps. Further, when the movable unit 1 is in the use position, the slider 15 is located at the front end portion of the guide groove 34, and when the movable unit 1 is at the storage position, the slider 15 is located at the engaging groove portion 37, and the slider 15 is disengaged from the engaging groove portion 37. It is blocked by the wobble piece 38. The cover 28 is erected on the left and right side portions of the front portion of the guide member 27, and the front end portion thereof is coupled to the lock portion 25, and is formed in a curved shape on the outer side. When the movable assembly 1 is in the storage position, the sleeve is sleeved. The midway portion of the needle 6 is covered in the middle of the axial direction. The fixing wing 4 is formed separately from the protective cylinder 26, and has an outer fitting portion 40 located at the central portion in the width direction, and a pair of right and left wing portions 41 extending from the outer fitting portion 40 to the outer side, by means of the hub 7 The same material is formed in one piece. The outer fitting portion 40 is externally fitted to the protective cylinder 26 and fixed. Further, the fixing wing 4 may be formed integrally with the protective cylinder 26 as in the first example. Further, in order to securely fix the back surface of the wing portion 41 to the patient, it is also possible to form a surface having a plurality of irregularities as shown in Fig. 18 to 2008-17058. In the above configuration example, when the movable unit 1 is moved from the use position shown in FIGS. 15 to 21 to the storage position as shown in FIGS. 22 to 28, the swing arm of the operating body 8 of the movable unit 1 is moved. 1 6 is pressed by the operation portion 23 to lower the protrusion 22 from the engagement portion 32 of the lock portion 25 of the clamp 3, and then the movable assembly 1 is slid to the storage position, and only the sleeve including the movable assembly 1 is slid The front portion of the needle tip 6A of the needle 6 is housed inside the protective tube 26 and the lock portion 25. Further, in the above case, the left and right covers 28 cover the midway of the trocar 6 in the axial direction. Further, when the movable unit 1 slides, the slider 15 of the operating body 8 moves into the guide groove 34 of the guiding member 27 of the movable unit 1, but the retaining portion 1 of the slider 15 is stored. Below the guiding member 27, the slider 15 does not touch the patient's hand or wrist. Further, when the movable unit 1 is slid, when the slider 15 reaches the rear portion of the guide groove 34, the slider 15 abuts against the two swing piece portions 38, and the two swing piece portions 38 are elastically deformed. The swinging portion 18 of the slider 1 5 _ reaches the engaging groove portion 37 of the guide groove 34 while being swinged toward the outer side. On the other hand, when the sliding portion 18 is passed, the two swinging piece portions 38 are returned to the original position by the elastic restoring force, and the sliding member 15 is prevented from being detached from the engaging groove portion 37. Thereby, the movable unit 1 is fixed to the storage position. [Third example of the embodiment] Fig. 29 to Fig. 45 show a third example of the embodiment of the present invention, and is a modification of the first example. When the difference is described, the large diameter of the hub 7 is shown. The portion 1 1 is formed closer to the front side than the large diameter portion 1 1 and has a small diameter portion 6 1 that maintains a constant diameter in the axial direction and a tapered portion that is tapered toward the rear - 16-200817058 push-out portion 62, the outer peripheral surface engagement groove portion 63 includes a circumference 64 formed over the entire circumference, and a constant diameter portion 65 formed to have the same outer diameter as the distal end of the push-out portion 62 and having a constant diameter on the axial center, and the respective portions are formed Continuous in the direction of the axis. The movable assembly 1 has a hollow fixing body 67. The fixed body 67 is formed as an end recess and is substantially annular, and is integrally formed of an elastic material as the hub 7. The fixed body 67 is slidable in the axial direction from the large-diameter portion 11 side of the hub 7, and is fitted to the guide member 27, and an engagement projection 68 that protrudes inward in the radial direction is formed on the 0-peripheral surface. At the use position of the movable group, the engaging projection 68 abuts against the large-diameter portion 1 1 of the hub 7, and is opposed by a slight gap. In the fixed lower portion, a hollow portion 69 having an opening is formed in the front-rear direction and the lower portion, and the lock portion 25 and the guide member 27 are inserted into the hole portion 69. On the left and right side surfaces of the front portion of the hollow portion 69, the inner surfaces of the left and right sides of the rear portion of the hollow portion 69 in the recessed portion are formed in the outer side, and are formed as inclined surfaces that move inward along the side. 7 1. The axial direction of the guiding member 27 is formed to have a short length, and at the rear end of the stomach, the stomach is formed in the same axial position as the rear end of the cover 28. A pair of right and left engaging claws 73 are formed at the rear of the guiding member. The engaging claws 73 are swingable left and right by elastic means, and the rear end portion is formed to protrude outward 74. When the claws 74 are moved rearward of the fixed body 67, they are fixed to the fixed body 67 by being engaged with the fixed body engagement recess 70 so as not to be disengaged. In the above configuration example, the movable unit 1 is moved from the use position of the 29th to the 36thth turn to the swing arm 16 of the operating body 8 of the movable position 1 as shown in Figs. 37 to 45. Swinging to the inner side, the groove portion is set to be harder than the front portion of the inner member 1 of the axial body 67, 70 of the empty space, and the I shape of the forward direction 27, the 1 of the claw portion 67 is i, Operation 17-200817058 After the projection 22 of the body 8 is detached from the engaging portion 32 of the lock portion 25 of the clamp 3, the movable assembly 1 is pulled to the rear. Accordingly, the movable unit 1 moves to the rear storage position together with the tube 2, and only the front portion of the needle tip 6A including the trocar 6 can be accommodated in the protective tube 26. At the time of this movement, the small diameter portion 61 and the push-out portion 62 of the hub 7 slide with the engagement projections 68 of the fixed body 67. When the push-out portion 62 and the engaging projection 68 slide, the fixed body 67 is elastically deformed outward in the radial direction. After the sliding, the fixed body 67 elastically recovers in the radial direction, and the engaging projection 68 of the fixed body 67 is placed thereon. The engagement groove portion 63 of the wheel φ hub 7 is not disengaged and can be engaged and dropped, so that the hub 7 and the fixed body 67 are fixed. Further, after the fixing (or before fixing), the inclined surface 71 of the fixing body 67 abuts against the claw portion 7 4 of the engaging claw 7 3 of the guiding member 27, and slides in the axial direction, whereby The engaging claw 73 swings inward by elastic deformation. When the above-described sliding is completed, the engaging claws 73 are elastically restored and swing to the outside, and the claw portions 74 are engaged with the engaging recessed portions 70 of the fixed body 67 so as not to be disengaged, and the fixed body 67 is fixed to the storage position. As described above, the movable unit 1 is fixed to 0 at the storage position. In the third example, the fixed body 67 is provided to allow the hub 7, the lock portion 25, and the guide member 27 to slide in the axial direction. When the movable unit 1 is moved toward the storage position, the hub 7 and the guide member 27 cannot be separated. Since the ground engaging member is fixed to the storage position, the length of the guiding member 27 can be shortened. Accordingly, the use of the medical practitioner or the patient in contact with the guiding member 27 can be reduced, the concern of the movement of the indwelling needle can be reduced, and the concern that the trocar 6 is inadvertently stabbed in the blood vessel of the patient can be reduced. Further, in the first example and the third example of the embodiment, the engaging portion is engaged with the engaging recessed portion from the outer side with respect to the -18-200817058, but the opposite side may be relatively engaged from the inner side. Further, in the second example of the above-described embodiment, the engaging portions are engaged with each other in the engaging recessed portion from above, but conversely, they can be relatively engaged from below. Further, in the second and third examples, the guide member is not formed with a recessed portion, but may be formed. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a first example of an embodiment of the present invention. Fig. 2 is a side view of Fig. 1. 0 3rd. The figure is a top view of Figure 1. Fig. 4 is a bottom view of Fig. 1. Fig. 5 is a cross-sectional view of the arrow A-A of Fig. 1; Fig. 6 is a cross-sectional view taken along line B - B of Fig. 1 . Fig. 7 is a cross-sectional view taken along line C-C of Fig. 5; Fig. 8 is a perspective view showing the state in which the movable unit of Fig. 1 is in the storage position. Figure 9 is a side view of Figure 8. I Fig. 10 is a plan view of Fig. 8. _ Figure 11 is a bottom view of Figure 8. Figure 12 is a cross-sectional view of the D-D line of Figure 11. Figure 13 is a cross-sectional view of the E-E line of Figure 12. Figure 14 is a cross-sectional view of the F-F line of Figure 12. Fig. 15 is a perspective view showing a second example of the embodiment of the present invention. Figure 16 is a side view of Figure 15. Figure 17 is a plan view of Figure 15. Figure 18 is a bottom view of Figure 15. -19- 200817058 Figure 19 is a cross-sectional view of the G-G line in Figure 15. Figure 20 is a cross-sectional view of the Η-Η line arrow of Figure 15. Figure 21 is a picture of Figure 19; ί — a cross-sectional view of the J-line arrow. Fig. 22 is a perspective view showing the state in which the movable unit of Fig. 15 is in the storage position. Figure 23 is a side view of Figure 22. Figure 24 is a plan view of Figure 22. Figure 25 is a bottom view of Figure 22. φ Figure 26 is a cross-sectional view of the Κ - Κ line arrow of Figure 25. Figure 27 is a cross-sectional view of the L-L line arrow of Figure 26. Figure 28 is a cross-sectional view of the Μ - Μ line arrow of Figure 26. Fig. 29 is a perspective view showing a third example of the embodiment of the present invention. Figure 30 is a side view of Figure 29. Figure 31 is a plan view of Figure 29. Figure 32 is a bottom view of Figure 29. Figure 33 is a cross-sectional view of the Ν-Ν line arrow of Figure 32. 0 Figure 34 is a cross-sectional view of the Ρ - Ρ line arrow of Figure 33. Figure 35 is a cross-sectional view of the Q-Q line of Figure 3-3. Figure 36 is a cross-sectional view of the R-R line of Figure 33. Fig. 37 is a perspective view showing the state in which the movable assembly of Fig. 29 is in the storage position. Figure 38 is a side view of Figure 37. Figure 39 is a top view of Figure 37. Figure 40 is a bottom view of Figure 37. Figure 41 is a cross-sectional view of the arrow 3-3 of Figure 40. -20- 200817058 Figure 42 is a cross-sectional view of the T-T arrow in Figure 41. Figure 43 is a cross-sectional view of the U-U line arrow of Figure 41. Figure 44 is a cross-sectional view of the V _ V line of Figure 41. Figure 45 is a cross-sectional view of the W-W line arrow of Figure 41. [Description of main component symbols] 1 Movable component 2 Tube 3 Clamp φ 4 Fixing wing 6 trocar 6Α Needle tip 7 Hub 8 Operating body 15 Slider 16 Swing arm 25 Locking part 0 26 Protective cylinder 27 Guide member 27Β Notch 28 Cover 34 Guide groove 37 Engagement groove 38 Wobble piece 5 1 Engagement protrusion 5 5 Engagement piece / -21- 200817058 56 Engagement recess 63 Engagement groove 67 Fixing body 68 Engagement protrusion 69 Cavity 70 engaging recess 73 engaging claw-22