201021870 九、發明說明： 【發明所屬之技術領域】 本發明關於一種套管的構造’特別是關於一種針頭安 全套管的構造。 【先前技術】 針筒是將藥液、血液、營養液等液狀物質注射於病人 ❹ 體内所使用的一種器具。其係藉由針頭插入於病人體内， 再利用活塞推力，將針筒内的上述液體經由針頭輸入於病 人體内。 由於使用時，針筒的針頭係插入於體内，因此使用後 ，該針頭即沾附有病人的金液。為避免遭受病人意外感染 ，必須將使用過後的針頭予以安全處理，以防止任何人的 接觸 依此’乃有所謂安全針筒的結構，其主要是將使用過 ❹ 後的針頭予以收藏或折斷在一容器内，防止任何人不意的 接觸，以避免感染。 第1圖及第2圖是繪示習知一種安全針筒的結構，其中 第1圖為其組合圖，第2圖為其分解囷。 該習知安全針筒包括有一針筒部丨、一針頭2與一針頭 套管。針筒部1包含有—筒體n與一活塞桿12;筒鱧^具 有相對的一第一端111與一第二端112，該第二端具有一螺 孔Π3;活塞桿12由第一端1^塞合於筒體u的内部。針頭 2包含有一針艘21與一支承該針體的針座22;針座22的外 201021870 周設有向外突出的多數外突體221，且針座22的端部的一 相對側部設有一相對突片222,能以該對突片222作為外螺 體旋入於針筒部1的螺孔113而與針筒部結合為一體。針頭 套管3具有一管體31，其具有相對的一開口端3ιι與—封口 端312且管體31於鄰近開口端311的部位設有向該管體内 部突出的多數内突體（未圖示），針頭2由開口端311套置於 針頭套管3的内部，而使針頭套管3套覆於針頭2的外部， 用以遮覆針頭2。 ❹ 使用時，係將針頭套管3取下，以顯露針頭2，即可以 針頭2及活塞桿12的抽推動作，以抽取或注射必要的液體 。當注射完成後，復將針頭套管3套覆於針頭2外部並旋 轉該針頭套管；此時，針頭套管3即可以其内突體帶動針 頭2的外突體221’使得針頭2被一併旋轉而自針筒部！旋出 並與針頭套管3套合為一體而被視為污染物處理；未接 觸病人的針筒部1則可另行處理或被回收使用。 m 肖習知安全針筒結構簡捷、使用方便、成本低廉，為 目前最常使用的安全針筒。惟該習知安全針筒於使用時有 如下缺撼。即：當針筒注射完成後而醫護人員欲將針頭2 套置於針頭套管3時，其針頭2係以沿著針體21的長度方向 由針頭套官3的開口端311直向插置於該針頭套管的内部 ，然而，此一沿著針體21長度方向的插置動作，有可能因 不慎或意外的推碰等因素，使得針體21的尖部沿其長度方 向順勢刺入於醫護人員的手部，而造成對醫護人員等使用 者意外的感染。 6 201021870 【發明内容】 本發明之一目的，係提供一種針頭安全套管，用以避 免針筒的針頭意外地刺入於使用者。 根據上述目的’本發明提供一種針頭安全套管’用於 套覆於一針筒的針頭，該針頭安全套管具有一管體其具 2相對的一開口端與一封口端，管體於鄰近開口端的部位 設有向管體内部突出的多數内突體；該針頭安全套管的管 糝 體的一側進—步自該開口端開始設有一沿管體長度方向 延伸的開縫，以供針筒的針頭由該開缝橫鑲置入於管體的 内部’避免針頭的尖部直向刺入使用者的手部。 較佳者’針頭安全套管的開缝及其鄰接開口端的部位 各形成一喇η八口 ’以利於針頭初期順利橫鑲置入於針頭套 管的内部。 【實施方式】 Φ 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之較佳實施例的詳細說明中，將可清楚 的呈現》 第3圖是繪示本發明針頭安全套管一實施例的外觀立 體圖並顯示其與一針筒之針頭及針筒部的分解圖，第4圖 是緣示第3圖其中針筒之針頭及針筒部的組合圖，並顯示 與本發明針頭安全套管的分解圖。 如圖所示，本發明針頭安全套管4係於習知針頭套管 的管體的一側設有—沿其長度方向延伸的開缝，提供—供 201021870 針頭套置的管道。亦即，本發明針頭安全套管4具有—管 體41’其具有相對的一開口端411與一封口端412,且管體 41於鄰近開口端411的部位設有向該管體内部突出的多數 内突體413,且管體41的一側進一步自其開口端411開始設 有一沿該管體長度方向延伸的開縫414。201021870 IX. Description of the Invention: [Technical Field] The present invention relates to a construction of a sleeve, particularly to a configuration of a needle safety sleeve. [Prior Art] A syringe is an instrument used to inject a liquid substance such as a drug solution, blood, nutrient solution or the like into a patient's body. The needle is inserted into the patient's body, and the liquid in the syringe is introduced into the patient via the needle by the thrust of the piston. Since the needle of the syringe is inserted into the body during use, the needle is adhered to the patient's gold liquid after use. In order to avoid accidental infection of the patient, the used needle must be safely treated to prevent any person's contact. This is the structure of the so-called safety syringe. The main purpose is to collect or break the needle after use. In a container, prevent anyone from accidentally touching to avoid infection. Fig. 1 and Fig. 2 are views showing the structure of a conventional safety syringe, wherein Fig. 1 is a combination diagram thereof, and Fig. 2 is an exploded view thereof. The conventional safety syringe includes a syringe portion, a needle 2 and a needle cannula. The barrel portion 1 includes a barrel n and a piston rod 12; the barrel has an opposite first end 111 and a second end 112, the second end has a screw hole 3; the piston rod 12 is first The end 1^ is fitted to the inside of the cylinder u. The needle 2 includes a needle boat 21 and a needle holder 22 for supporting the needle body; the outer portion 201021870 of the needle holder 22 is provided with a plurality of outer protrusions 221 protruding outward, and an opposite side portion of the end portion of the needle holder 22 is provided. A pair of protruding pieces 222 can be screwed into the screw hole 113 of the barrel portion 1 by the pair of protruding pieces 222 as an outer screw, and integrated with the barrel portion. The needle cannula 3 has a tubular body 31 having a pair of open ends 3 ιι and a sealing end 312 and a portion of the tubular body 31 adjacent to the open end 311 is provided with a plurality of inner protrusions protruding toward the inside of the tubular body (not shown) The needle 2 is placed inside the needle cannula 3 by the open end 311, and the needle cannula 3 is placed over the outside of the needle 2 to cover the needle 2. ❹ When in use, the needle cannula 3 is removed to reveal the needle 2, that is, the pushing action of the needle 2 and the piston rod 12 to extract or inject the necessary liquid. When the injection is completed, the needle cannula 3 is overlaid on the outside of the needle 2 and the needle cannula is rotated; at this time, the needle cannula 3 can drive the outer protrusion 221' of the needle 2 with its inner protrusion so that the needle 2 is Rotate together from the needle tube! It is treated as a contaminant treatment by screwing out and integrating with the needle cannula 3; the syringe portion 1 which is not in contact with the patient can be treated separately or recycled. m Xiao Xizhi safety syringe is simple, easy to use and low cost. It is the most commonly used safety syringe. However, the conventional safety syringe has the following disadvantages when used. That is, when the syringe is finished and the medical staff wants to place the needle 2 on the needle cannula 3, the needle 2 is inserted straight from the open end 311 of the needle cover 3 along the length of the needle body 21. In the interior of the needle cannula, however, the insertion action along the length direction of the needle body 21 may cause the tip end of the needle body 21 to follow the length direction due to factors such as inadvertent or accidental pushing. Involved in the hands of medical staff, causing accidental infections for medical staff and other users. 6 201021870 SUMMARY OF THE INVENTION One object of the present invention is to provide a needle safety sleeve for avoiding accidental penetration of a needle of a syringe into a user. According to the above object, the present invention provides a needle safety sleeve for covering a needle of a syringe, the needle safety sleeve having a tube body having an opposite open end and a mouth end, the tube body being adjacent to the open end The portion is provided with a plurality of inner protrusions protruding toward the inside of the tube body; one side of the tube body of the needle safety sleeve is stepped from the open end to provide a slit extending along the length of the tube body for the barrel The needle is placed laterally into the interior of the tubular body by the slit to prevent the tip of the needle from penetrating directly into the user's hand. Preferably, the slit of the needle safety sleeve and the portion adjacent to the open end each form a smear eight mouths to facilitate the initial smooth insertion of the needle into the interior of the needle cannula. [Embodiment] Φ The foregoing and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments with reference to the drawings. FIG. 3 is a view showing the needle of the present invention. An external perspective view of an embodiment of the safety sleeve and an exploded view of the needle and the needle portion of a syringe, and FIG. 4 is a combination view of the needle and the needle portion of the syringe in the third embodiment, and shows An exploded view of the needle safety sleeve of the present invention. As shown, the needle safety cannula 4 of the present invention is provided on one side of the body of a conventional needle cannula with a slit extending along its length to provide a conduit for the 201021870 needle. That is, the needle safety sleeve 4 of the present invention has a tube body 41' having an opposite open end 411 and a mouth end 412, and the tube body 41 is provided with a majority protruding toward the inside of the tube body at a portion adjacent to the open end 411. The inner protrusion 413, and one side of the tube body 41 is further provided with a slit 414 extending from the open end 411 along the length direction of the tube body.
本發明針頭安全套管4同樣使用於習知安全針筒的針 筒部1與針頭2。該些針筒部與針頭具有與習知相同的構造 。即：針筒部1包含有一筒體11與一活塞桿12;筒體u = 有相對的一第一端111與一第二端112,該第二端具有—螺 孔113;活塞桿12由第一端U1塞合於筒體u的内部。針頭 2包含有一針體21與一支承該針體的針座22 ;針座的成周 設有向外突出的多數外突體22卜且針座22的端部的;;相 對側部設有-相對突片222 ’能以該對突片222作為外 旋入於針筒部i的螺孔113，而與針筒部結合為一體/ 針頭2併參閱第5圖為繪示本發明針頭安全套管套覆於 管P的操作不意圖’第6圖為繪示本發明針頭安全套 :套覆於針頭外部的縱剖面示意圖，請為綠示第6圖： 將針頭自針筒邻“ 繪不利用本發明針頭安全套管 當醫護I:、並與針頭套合為一體的示意圖。 而欲:針頭/針頭2插人於病人體内並注射完成後， 針體叫橫截面方77上安全套管4時’其針頭2係可沿著 4“橫鎮置入境師…向下而由針頭安全套管4的開缝 圖所示)，然後旋轉:頭=套管的内部(如…^ 王套管4，此時，針頭安全套管 201021870 4即可以其内突體413帶動針頭2的外突體22ι(如第7圖所 示）’使得針頭2被-併旋轉而自針筒則旋出（如第8圖所 示）’並與針頭安全套管4套合為一體而被視為污染物處理 ;未接觸病人的針筒部丨則可另行處理或被回收使用。 、由於本發明針頭安全套管4於套置針頭2時，其針頭2 並非沿其長度方向直向插置於針頭安全套管4，亦即，其 針頭2尖部並非沿著插置的施力方向對準使用者手部；而 係沿著針體21的橫截面方向由上向下而由針頭安全套管4 的開縫414橫鑲置入於該針頭安全套管的内部，因此能避 免針體21的尖部順勢直向刺入醫護人員等使用者手部的 危險，避免遭受感染。 開縫414的寬度係僅略大於針體21的粗度，其寬度細 小，因此使用者的手指亦無法經由開縫4丨4接觸到針體， 確保使用者的安全。 針頭安全套管4的開缝414及其鄰接開口端41丨的部位 φ 各形成一喇叭口 415,以利於針頭2初期順利橫鑲置入於針 頭安全套管4的内部^ 依據本發明針頭安全套管，於套覆針頭時係為側面鑲 入，其使用方便，且能避免針頭直向刺入使用者的手部， 避免使用者遭受病人感染，其安全性及應用性佳。 本發明雖已藉上述較佳實施例加以詳細說明，惟以上 所述者’僅用以說明本發明使熟知本技藝者可更易於了解 本發明，並非用來限定本發明實施之範圍。故而，凡依本 發明申請專利範圍所述之形狀構造特徵及精神所為之均 201021870 等變化與修飾，均應包含於本發明 < τ睛專利範圍内。 【圖式簡單說明】 第1圖是繪示習知一種安全針筒的組合圖。 第2圖是缯'示第1圖所示習知容；私松 女全針筒的分解圖。 第3圖是缯示本發明針頭安全矣其—& 云β ~貫施例 體圖，並顯示其與-針筒之針頭及針筒部 卜觀立 第4圖是緣示第3圖其中針筒之針頭及針《。 圖，並顯示與本發明針頭安全套管的分解圖 Q的組合 第5圖是繪示本發明針頭安全套管 操作示意圖。 ；針頌外部的 第6圖是纷示本發明針頭安全套管套 縱剖面示意圖。 於針頭外部的 第7圖是繪示沿第6圖其中A_A線 丨μ的剖面 第8圖是繪示利用本發明針頭安全套營 、意圖。 部旋出，並與針頭套合為一體的示意圖。將針頭自斜筒 【主要元件符號說明】 1.針筒部 11. 筒體 111. 第一端 112. 第二端 113. 螺孔 12. 活塞桿 201021870 2. 針頭 21. 針體 22. 針座 221. 外突體 222. 突片 3. 針頭套管 31.管體 311.開口端 ® 312.封口端 4. 針頭安全套管 41.管體 411.開口端 41 2.封口端 413. 内突體 414. 開縫 41 5.剩°八口The needle safety sleeve 4 of the present invention is also used in the syringe portion 1 and the needle 2 of a conventional safety syringe. The syringe portions and the needle have the same configuration as conventional ones. That is, the syringe portion 1 includes a cylinder 11 and a piston rod 12; the cylinder u = has a first end 111 and a second end 112, the second end has a screw hole 113; the piston rod 12 is The first end U1 is fitted to the inside of the cylinder u. The needle 2 includes a needle body 21 and a needle holder 22 supporting the needle body; the needle hub is provided with a plurality of outer protrusions 22 protruding outwardly and ends of the needle holder 22; the opposite side portion is provided - the opposing tab 222 ' can be screwed into the screw hole 113 of the barrel portion i as the outer protruding piece 222, and integrated with the needle barrel portion / the needle 2 and refer to FIG. 5 to illustrate the needle condom of the present invention The operation of covering the tube P to the tube P is not intended. FIG. 6 is a schematic view showing the needle condom of the present invention: a longitudinal section of the needle covering the outside of the needle, please show the green figure 6: The needle is not used from the needle cylinder The needle safety sleeve of the present invention is a schematic diagram of the medical I: and integrated with the needle sleeve. And the needle/needle 2 is inserted into the patient body and after the injection is completed, the needle body is called the safety sleeve 4 on the cross section 77 'The needle 2 can be placed along the 4" horizontal town immigration...downward from the slit diagram of the needle safety sleeve 4), then rotated: head = inside of the casing (eg...^ king casing 4, At this time, the needle safety sleeve 201021870 4 can drive the outer protrusion 22 of the needle 2 (as shown in FIG. 7) with its inner protrusion 413 to make the needle 2 It is rotated by the - and rotated from the barrel (as shown in Figure 8) and is integrated with the needle safety sleeve 4 and treated as a contaminant; the needle unit that is not in contact with the patient can be treated separately Or the needle safety sleeve 4 of the present invention is inserted into the needle 2, and the needle 2 is not inserted directly into the needle safety sleeve 4 along its length, that is, the tip of the needle 2 is not inserted along the needle. The direction of the applied force is aligned with the user's hand; and the transverse direction of the needle body 21 is inserted from the top to the bottom of the needle safety sleeve 4 into the interior of the needle safety sleeve. It can avoid the danger that the tip of the needle body 21 will penetrate straight into the hand of the user such as a medical staff to avoid infection. The width of the slit 414 is only slightly larger than the thickness of the needle body 21, and the width thereof is small, so the user The finger can't contact the needle body through the slit 4丨4 to ensure the safety of the user. The slit 414 of the needle safety sleeve 4 and the portion φ adjacent to the open end 41丨 each form a bell mouth 415 to facilitate the needle 2 Initially inserted smoothly into the needle safety sleeve 4 According to the needle safety sleeve of the present invention, the needle is inserted into the needle when the needle is sheathed, which is convenient to use and can prevent the needle from penetrating directly into the user's hand, thereby avoiding the user suffering from the patient's infection, and its safety and application. The present invention has been described in detail by the preferred embodiments of the present invention, which is intended to be illustrative of the present invention. Therefore, any changes and modifications such as the shape and structure and the spirit of the invention described in the scope of the present invention should be included in the scope of the present invention. [Simplified illustration] Fig. 1 It is a combination of a conventional safety syringe. Figure 2 is an exploded view of the full syringe of the private pine. Figure 3 is a schematic view showing the needle safety of the present invention, and the needle and the needle of the syringe are shown in Figure 4, wherein the needle is shown in Figure 3 Needle and needle. Figure and showing a combination of an exploded view of the needle safety sleeve of the present invention. Figure 5 is a schematic view showing the operation of the needle safety sleeve of the present invention. Fig. 6 is a schematic longitudinal sectional view of the needle safety sleeve of the present invention. Fig. 7 which is outside the needle is a cross section taken along line A_A of Fig. 6 and Fig. 8 is a view showing the use of the needle condom of the present invention. The part is spun out and integrated with the needle sleeve. Needle self-angled tube [Main component symbol description] 1. Syringe portion 11. Cylinder body 111. First end 112. Second end 113. Screw hole 12. Piston rod 201021870 2. Needle 21. Needle body 22. Needle holder 221. Outer protrusion 222. Tab 3. Needle sleeve 31. Tube 311. Open end ® 312. Seal end 4. Needle safety sleeve 41. Tube 411. Open end 41 2. Seal end 413. 414. Slotted 41 5. Remaining ° eight