TWM262191U - Safety syringe with retractable needle - Google Patents

Safety syringe with retractable needle Download PDF

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Publication number
TWM262191U
TWM262191U TW93216670U TW93216670U TWM262191U TW M262191 U TWM262191 U TW M262191U TW 93216670 U TW93216670 U TW 93216670U TW 93216670 U TW93216670 U TW 93216670U TW M262191 U TWM262191 U TW M262191U
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TW
Taiwan
Prior art keywords
needle
base
syringe
shape
bottom end
Prior art date
Application number
TW93216670U
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Chinese (zh)
Inventor
Wei-Shuei Wu
Original Assignee
Wei-Shuei Wu
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Priority to TW93216670U priority Critical patent/TWM262191U/en
Publication of TWM262191U publication Critical patent/TWM262191U/en

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Description

M262191 八、新型說明: 【新型所屬之技術領域】 本創作係關於一種具回收針頭之安全注射器,特別是指一 種可將使用完畢的針頭座縮至注射筒巾的具回收針頭之安全注 射器。 王〆 【先前技術】 按 旋鎖之方式固定,因此, 般習用之針筒,其針頭係以 當使用者使用完畢時,需再將針頭蓋蓋合該針頭再行丢棄,以避 免他人遭針頭螫傷,而發生受傷或遭感染的現象。 由血液傳染的疾病 但是,❹者常在使用完畢時,將該針頭蓋蓋合該針頭時, 常因為-時的眼花、滑手或是精神不專注等現象,而刺傷了自 己,然而刺傷事小,如被注射之患者患有肝炎、愛滋病或—些經 針頭而傳染 等等’那被刺傷者會經由該患者使用過之 因此 之必要,以避免最常 上述之針筒時有需做進一步改良 使用針筒的護理人員篝,古μ、+、 、 有述之現象產生而遭感染的情形產 生’本案創作人鏗於上述習 μ 这s用之針同所衍生的各項缺點 加以改良創新,並經多年苦 成本件研究後,終於成功研發完 ,、ϋ收針碩之安全注射器。 【新型内容】 可達麥 1即在於&供'種具回收針頭之安全注射器,係 、兄…、廢棄物處理體積縮減之簡便注射器。 M262191 本創作之次—目的係在於提供—種於使用完畢後,針頭芸係 可插置於注射筒之具回收針頭之安全注射器。 、一 …本創作之另—目的係在於提供一種於使用完畢後針頭座可 合置於庄射同之容置部的具回收針頭之安全注射器。 、 又目的係在於提供一種推桿之主體與頸部間係 以數連接點連接在一 . ,並在使用後可將主體與頸部折斷分離之 具回收針頭之安全注射器。 可達成述新型目的之具回收針頭之安全注射器,包括有: 一注射筒’係為一具有頂端及底端之圓管體,其接近圓管 體:底端内部係環設有—環凸部,以使該環凸部與底端形成一容 置部’且該容置部係由該環凸部後端沿底端漸縮呈一圓錐體之形 並於該注射筒之底端外緣開設有—與容置部相通之穿孔’其 牙孔之孔㈣由容置部漸縮於底端外緣之圓錐形態; —料,該推桿係由一按壓部、一主體、一頸部、一凸柱 j套ί衣所組成’該頸部之前端係設有環凹部,並以套環套設於 %凹部之上,而該凸柱係為一球狀圓錐體; —針頭座,係設有-變化曲面之基座、—套座及—套合部, 該基座之上平面之形狀為一呈有長軸與短轴且近似於擴圓形之 形態,且該上平面之外圍環繞的總長係小於環凸部内圍環繞的總 長,而該基座之下平面之形狀係為一圓形之型態並開設有一圓 孔’其位於套合部之圓孔係可固設—針頭’該針頭係與基座内開 設之圓孔相通; M262191 ▲ 一針頭蓋,係成中空之圓錐形態以供蓋合該針頭之用,且 5亥針頭盍之外緣環設有數凸肋。 【實施方式】 請參閱圖-、圖二及圖三,本創作所提供之具回收針頭之安 全注射器,其具有: /主射筒1,係為-具有頂端及底端之圓管體u,其接近圓 官-11之底端内部係環設有_環凸部lu ’以使該環凸部⑴ 與底端形成-容置部12,且該容置部12係由該環凸部⑴後端 沿底端漸縮呈-圓錐體之形態,並於該注射^之底端外緣開設 有-與容置部12相通之穿孔14’其穿孔14之孔徑係由容置部 12漸縮於底端外緣之圓錐形態; 推杯2,該推桿2係由一按壓部21、一主體&、一孩立 U、一凸柱25及一套環26所組成,該頸部以之前端係設二: 凹部24’並以套環26套設於環凹部24之上,該套環26係可由 橡膠切膠所製成1本實施例中該套環26料橡膠所製成, 而該凸柱25係為一球狀圓錐體; 一針頭座3,係設有一變化曲面之基座31、一套座犯及一 套合部34,該基座31之上平面314之形狀為一呈有長轴犯虚 短軸近似於橢圓形之㈣’且該上平面314之外圍料 的總長係小於環凸部111内圍環繞的總長,而該基座31之= 面315之形狀係為―圓形之型態並開設有_圓孔316,复位於套 合部34之圓孔316,係可固設一針頭33,該針頭…系與基座 M262191 31内開設之圓孔316相通; ’ 一針頭蓋4,係成中^之圓錐形態以供蓋合該針頭33之用, 且該針頭蓋4之外緣環設有數凸肋41,如圖九所示,而該針頭 蓋4係可成頂、底端相通的形態或只具有—開口的形態,而於本 實施例中係以頂、底端相通的形態為說明例; 請參閱圖四,該針頭座3係以基座31穿過該注射筒i之圓 管體U’並以基座31上平面314之長㈣2二端頂抵於環凸部 111之下緣,以形成一抵擋狀態設至於容置部12,而該針頭座3 之套座32為穿過注射筒1的穿孔14後,藉以由基座31之下平 面315與套座32密合於穿孔14,其推桿2所設置之套環心 與注射筒1之圓管體11密合,如圖五所示,當使用者向注射何 1内產生推擠壓力注射藥劑’使藥劑注射完成後,推擠的力量合 使該推桿2之凸柱25進入針頭座3之基座31,如圖六所示,在 凸柱25進入基座31的同時基座31的變化曲面會逐漸變成圓錐 狀曲面,以使上平面314至下平面315中間之變化曲面逐漸與凸 柱25在合’進而使凸柱25之圓雜體與基座31之銜接部川藉 由l緊力與摩擦力相結合,如圖七所示,再同時因基座Μ上平 面314外徑尺寸略小於環凸部⑴的内徑尺寸,因此,當使用者 拉拔出推桿2時(如m、 ®八所不),可將針頭座3脫離於容置部工2 並收藏於注射筒1之圓管體u中。 ° -參閱圖二’本創作之針頭座3另可設置第二實施態樣,該針 頭座3所„又置之套合部34係提供其針座35之套設;而針座 M262191 係為目前常用之針座,使用者可依需求拿取不同規格之針頭並 將針座35藉由固接部351套設於套合部34,以提供使用。 為更詳盡說明’請再參閱圖三至圖九,當使用本創作之呈回 收針頭之安全注射11時,以食、中指抵住該注射筒丨的抵止部 13,:以梅指輕麼該推桿2的㈣部21,俾將容置於注射筒^ 中的藥劑(圖中未顯示)經擠壓由該針頭33注出,而當推動咳 按壓部21而使該推桿2移動至該注射筒!的底部時,該推桿2 的凸柱25會容置於該針頭座3之基座3ι的銜接部⑴之中,使 得該橢圓形態的基座31變形為圓形的形態,而此種狀態下的基 座31直徑會略小於該環凸部111的孔徑,因此,當使用者將該 推桿2後拉出注射筒"夺,該針頭座3會隨著該推桿2的後拉, 、出"主射筒1的容置部12 ’使得該針頭33内縮於該圓管體 11中。 /再者’由於該針頭蓋4之外緣環設數枝具有錐度的凸肋41, ^係成頂❸而相通的形態’因此’可將該針頭蓋⑼入該注射 ^ 牙孔14中,再藉由,其具錐度的凸肋41迫緊定位。 在本創作之注射筒1中,該容置部12與該穿孔Η係以相連 通°又置’且4容置部12之孔徑係大於該穿孔14之孔徑,因此則 $成*有階級之形態,所以當基座31設置於注射筒1中時, 能完全對應於該容置部12及穿孔14,並可完全的容置於該容置 4 12之中’使得該針頭座3無法從穿孔14掉出該注射筒1的情 况產生’其谷置部12與該穿孔14之階級形態設計,亦可避免其 M262191 注射時藥劑外漏的現象產生。 * 另,該注射筒1位於抵止部13 該傾斜部15與貫穿孔u力… 又有一傾斜部15,且 目妾处係形成階級之形態,因此,當該 具回收針頭之安全注射器使用完 、,使用者將該推桿2移動至 抵止部13時,該推桿2之擋止 邛2 7可卡止於抵止部丨3,使之 推桿2無法動彈不致脫離注射 又推扣2之主體22與頸部 23間係以若干連接點予以連接 者 ^ 田/主射同1使用後可將 主體22與頸部23折斷分離。 本創作所提供之具回收針頭之安 文王庄射為’與丽述引證案及 其他習用技術相互比較時,更具有下列之優點·· ⑴t該推桿推錄㈣之底料,可提供料頭座能隨 者推桿退出該容置部,而容置於其圓管體中再行丢 棄,以防止他人遭該針頭螫傷的情形。 (2)當使用完時’該針頭蓋係可插置於該基座的穿孔中一 起丟棄,以節省資源回收體積。 綜上所述,本案不但在空間型態上確屬創新,並能較習用 物品增進上述多項功效’應已充分符合新穎性及進步性之法定新 型專利要件,爱依法提出巾請’懇請f局核准本件新型專利申 凊案,以勵創作,至感德便。 【圖式簡單說明】 請參閱以下有關本創作一較佳實施例之詳細說明及其附 圖,將可進一步瞭解本創作之技術内容及其目的功效;有關該實 M262191 施例之附圖為: 圖一為本創作具回收針頭之安全注射器第一實施例之分解 視圖; 圖二為本創作具回收針頭之安全注射器第一實施例之分解 視圖; 圖三為該具回收針頭之安全注射^之立體分解視圖;; 圖四為該注射筒與套環結合後之放大視圖; 圖五為該推桿設置於注射筒之示意圖; 圖六為該具回收針頭之安全注射器之結合視圖; 圖七為該具回收針頭之安全注射器之結合放大視圖; ; 圖八為該推桿之圓錐體與基座之銜接部結合後,將針頭座脫 離於容置部之示意圖;以及 圖九為該具回收針頭之安全注射器之推桿後拉出注 推桿之主體與頸部折斷分離之示意圖。 【主要元件符號說明】 1注射筒 射筒及 11圓管體 111環凸部 12容置部 13抵止部 14穿孔 1 5傾斜部 12 M262191 2推桿 21按壓部 22主體 23頸部 24環凹部 25凸柱 26套環 2 7撞止部 3針頭座 3 1基座 3 11銜接部 3 12長軸 313短軸 3 14上平面 3 15下平面 3 1 6圓孔 32套座 33針頭 3 4套合部 35針座 351固接部 4針頭蓋 M262191 41凸肋M262191 8. Description of the new type: [Technical field to which the new type belongs] This creation is about a safety syringe with a recovery needle, especially a safety syringe with a recovery needle that can retract the used needle seat to an injection towel. Wang Xi [Previous technology] It is fixed by a rotary lock. Therefore, the needles of conventional syringes are used when the user is finished, and then the needle cover needs to be covered with the needle and then discarded to prevent others from being damaged. Needle stinging and injury or infection. Diseases transmitted by blood. However, when the person who uses the needle covers the needle when they are finished using it, they often stab themselves because of dazzling, slippery hands, or mental inattention. Small, if the injected patient has hepatitis, AIDS, or some infection through a needle, etc., 'the stabbed person will be used by the patient and it is necessary to avoid the most common need for further injections Improving the use of syringes in the nursing staff camp, the ancient μ, +,, and the occurrence of the phenomenon described and infected have occurred 'The creator of this case is accustomed to the above practice μ This needle and the various disadvantages derived from it are improved and innovative After years of painstaking research, it has finally successfully developed a safe syringe with a narrow needle. [New content] Kedamai 1 is a & safety syringe with recovery needle, which is a simple syringe for reducing the volume of waste disposal. M262191 The purpose of this creation—the purpose is to provide—a kind of safety syringe with a recovery needle that can be inserted into a syringe after use. 1. Another ... The purpose of this creation is to provide a safety syringe with a recovery needle that can be placed in the receiving part of Zhuang Shetong after use. The purpose is to provide a safety syringe with a recovery needle which is connected between the main body of the push rod and the neck with several connection points and can be used to break off the main body and the neck after use. A safety syringe with a recovery needle that can achieve the novel purpose includes: a syringe barrel is a round tube body with a top end and a bottom end, which is close to the round tube body: an inner ring is provided at the bottom end with a ring convex portion So that the annular convex portion and the bottom end form an accommodating portion ', and the accommodating portion is gradually tapered into a cone shape from the rear end of the annular convex portion along the bottom end and is on the outer edge of the bottom end of the injection cylinder It is provided with a perforation which communicates with the accommodation portion, and the hole ㈣ of its perforation is tapered from the accommodation portion to the outer edge of the bottom end;-the push rod is composed of a pressing portion, a main body, and a neck 1. A convex post j sleeve is made up of a garment 'the front end of the neck is provided with a ring recess, and the collar is sleeved on the% recess, and the convex post is a spherical cone; It is provided with a base with a changing surface, a socket, and a fitting portion. The shape of the plane above the base is a shape that has a long axis and a short axis and is approximately a circular shape, and the upper plane is The total length of the outer circumference is smaller than the total length of the inner circumference of the annular convex portion, and the shape of the plane below the base is a circular shape and is provided. Round hole 'The round hole located in the fitting part can be fixed-needle' The needle is connected with the round hole opened in the base; M262191 ▲ A needle cover is a hollow conical shape for covering the needle. There are several convex ribs on the outer ring of the 5H needle head. [Embodiment] Please refer to Fig.-, Fig.2 and Fig.3. The safety syringe with a recovery needle provided by this creation has: / the main barrel 1, which is a round tube u with a top end and a bottom end, An inner ring is provided at the bottom end near Yuan-11, so that the ring convex portion ⑴ forms a receiving portion 12 with the bottom end, and the receiving portion 12 is formed by the ring convex portion ⑴. The rear end is tapered into a cone shape along the bottom end, and is provided on the outer edge of the bottom end of the injection ^-a perforation 14 communicating with the accommodation portion 12, and the aperture of the perforation 14 is gradually tapered by the accommodation portion 12. The conical shape at the outer edge of the bottom end; push cup 2, the push rod 2 is composed of a pressing part 21, a main body & a child stand U, a convex column 25 and a set of rings 26, the neck is formed by The front end is provided with two: a recessed portion 24 ′ and a sleeve 26 is sleeved on the ring recessed portion 24. The sleeve 26 is made of rubber cut rubber. 1 In this embodiment, the sleeve 26 is made of rubber. The convex column 25 is a spherical cone; a needle base 3 is provided with a base 31 with a varying curved surface, a set of sockets and a set of joints 34. The shape of the plane 314 above the base 31 is There is a long The short axis of the axis is approximately the shape of an ellipse, and the total length of the peripheral material of the upper plane 314 is smaller than the total length of the inner circumference of the annular convex portion 111. The shape of the surface 31 of the base 31 is ―circular The type is also provided with a _round hole 316, which is reset to the round hole 316 of the fitting portion 34. A needle 33 can be fixedly installed, which is in communication with the round hole 316 opened in the base M262191 31; The head cover 4 is formed into a conical shape for covering the needle 33, and the outer edge ring of the needle cover 4 is provided with a plurality of ribs 41, as shown in FIG. 9, and the needle cover 4 can be topped. The shape with the bottom ends communicating or only has an opening. In this embodiment, the form with the top ends communicating with the bottom is taken as an example for explanation. Please refer to FIG. 4, the needle base 3 passes through the base 31 The round tube U ′ of the injection cylinder i abuts against the lower edge of the annular convex portion 111 with the long end 2 of the flat surface 314 on the base 31 to form a resisting state and is set to the receiving portion 12, and the needle base 3 The sleeve 32 is a sleeve center provided by the push rod 2 after the sleeve 14 passes through the perforation 14 of the syringe 1 so that the lower surface 315 of the base 31 and the sleeve 32 are in close contact with the perforation 14. It is in close contact with the circular tube body 11 of the injection cylinder 1, as shown in Fig. 5, when the user generates a pushing force into the injection He 1 to inject the medicine, so that after the medicine injection is completed, the pushing force is combined to make the push rod 2 The convex pillar 25 enters the base 31 of the needle base 3, as shown in FIG. 6, when the convex pillar 25 enters the base 31, the changing surface of the base 31 will gradually become a conical surface, so that the upper plane 314 to the lower plane The changing surface in the middle of 315 gradually merges with the convex column 25, so that the connecting portion of the round body of the convex column 25 and the base 31 is combined with the tight force and the friction force, as shown in FIG. The outer diameter dimension of the upper plane 314 of the base M is slightly smaller than the inner diameter dimension of the annular convex part ⑴. Therefore, when the user pulls out the push rod 2 (such as m, ® Basuo), the needle seat 3 can be separated from the container. Place the worker 2 and store it in the round tube u of the syringe 1. °-Refer to Figure 2 'The needle holder 3 of this creation can also be provided with a second embodiment. The sleeve 34 provided by the needle holder 3 is provided with its needle holder 35; and the needle holder M262191 is At present, needle holders are commonly used. Users can take different specifications of needles and set the needle holder 35 on the fitting portion 34 through the fixing portion 351 to provide use. For a more detailed description, please refer to FIG. 3 again. As shown in FIG. 9, when using the safe injection 11 with a recycling needle created by this creation, use the food and middle fingers to abut against the abutment portion 13 of the syringe 丨: Use the plum finger to lighten the crotch portion 21 of the pusher 2, 俾A medicament (not shown in the figure) contained in the syringe ^ is squeezed out by the needle 33, and when the cough pressing part 21 is pushed to move the push rod 2 to the bottom of the syringe! The protrusion 25 of the push rod 2 will be accommodated in the connecting part ⑴ of the base 3m of the needle base 3, so that the oval base 31 is deformed into a circular shape, and the base 31 in this state The diameter will be slightly smaller than the diameter of the annular convex portion 111. Therefore, when the user pulls the push rod 2 out of the syringe ", the needle holder 3 will follow The pull-back of the push rod 2 and the accommodating portion 12 ′ of the main barrel 1 cause the needle 33 to be retracted into the circular tube body 11 / Furthermore, since the outer edge of the needle cover 4 is ring-shaped Several branches have tapered convex ribs 41, which are in the form of intersecting and communicating. Therefore, the needle cap can be inserted into the injection hole 14, and then the tapered convex ribs 41 are tightly positioned. In the injection cylinder 1 of this creation, the accommodation portion 12 and the perforation are in communication with each other, and the aperture of the 4 accommodation portion 12 is larger than the aperture of the perforation 14, so $ 成 * 有 级In this form, when the base 31 is set in the injection cylinder 1, it can completely correspond to the accommodating portion 12 and the perforation 14, and can be completely accommodated in the accommodating 4 12 ', making the needle base 3 impossible. The case of dropping the syringe 1 from the perforation 14 results in a class design of the valley portion 12 and the perforation 14, which can also prevent the leakage of the medicine during injection of its M262191. * In addition, the syringe 1 is located in the abutment. Stop 13 The force of the inclined portion 15 and the through hole ... There is another inclined portion 15 and the position of the eye is in the form of a class. Therefore, when the tool is recycled When the safety syringe on the head is used up, when the user moves the push rod 2 to the abutting portion 13, the stopper 2 of the pusher 2 can be locked on the abutting portion 3, making the pusher 2 unable to move. The main body 22 and the neck 23 that are not separated from the injection and pushed the buckle 2 are connected by a number of connection points ^ Tian / Main Shot 1 can be used to break and separate the main body 22 and the neck 23. The recycling provided by this creation The needle of Anwen Wang Zhuangshewei has the following advantages when compared with Lishu's citation case and other conventional techniques: 该 tThe putter can be used to record the base material of ㈣, which can provide the material head seat to be able to exit with the putter. The accommodating part is accommodated in the round tube body and then discarded, so as to prevent others from being stung by the needle. (2) When finished, the needle cover can be inserted into the perforation of the base and discarded together to save resource recovery volume. In summary, this case is not only innovative in terms of space type, but also can enhance the above-mentioned multiple effects over conventional items. 'It should have fully met the requirements of novel and progressive statutory new patents. Approval of this new patent application case, to encourage creativity, to the utmost. [Brief description of the drawings] Please refer to the following detailed description of a preferred embodiment of the present invention and the accompanying drawings, which will further understand the technical content of this creation and its purpose and effectiveness; the attached drawings of the embodiment of the actual M262191 are: Figure 1 is an exploded view of the first embodiment of a safety syringe with a recovery needle; Figure 2 is an exploded view of the first embodiment of a safety syringe with a recovery needle; Figure 3 is a safe injection of the safety needle with a recovery needle ^ An exploded perspective view; Figure 4 is an enlarged view of the injection cylinder and the collar after being combined; Figure 5 is a schematic view of the push rod provided in the syringe; Figure 6 is a combined view of the safety syringe with a recovery needle; Figure 7 is An enlarged view of the combination of the safety syringe with a recovery needle; Figure 8 is a schematic diagram of the needle seat being separated from the accommodating portion after the cone of the pusher is combined with the connecting portion of the base; and Figure 9 is the recovery needle with the needle After the pusher of the safety syringe is pulled out, the body of the injection pusher and the neck are broken and separated. [Description of main component symbols] 1 Syringe barrel and 11 round tube body 111 ring convex part 12 accommodating part 13 abutment part 14 perforation 1 5 inclined part 12 M262191 2 push rod 21 pressing part 22 main body 23 neck 24 ring concave part 25 convex post 26 collar 2 7 collision stop 3 needle seat 3 1 base 3 11 connecting part 3 12 long axis 313 short axis 3 14 upper plane 3 15 lower plane 3 1 6 round hole 32 sleeve 33 needle 3 3 sets Joint 35-pin holder 351 Fixed portion 4-pin head cover M262191 41 raised rib

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Claims (1)

M262191 九、申請專利範圍: 1. -種具回收針頭之安全注射器,包括: 一注射筒,係為一具有 们“及底端之圓管體,其接近圓管 體之底端内部係環設有一 一和立 凸邛,以使該環凸部與底端形成 谷置部,且該容置部係由該環凸部後端沿底端漸縮呈一圓 錐體之形態,並於嗜注A 亥/主射同之底端外緣開設有一與容置部相 之孔㈣由容置部漸縮於底端外緣之圓錐 形態;M262191 IX. Scope of patent application: 1.-A safety syringe with a recovery needle, including: a syringe, which is a round tube with their bottom ends, which is set inside the ring near the bottom end of the round tube. There is a ridge, so that the annular convex portion forms a valley portion with the bottom end, and the accommodating portion is gradually tapered into a cone shape from the rear end of the annular convex portion along the bottom end. Note A: The outer edge of the bottom end of Hai / Tongtong is provided with a hole corresponding to the receiving part. The conical shape gradually shrinks from the receiving part to the outer edge of the bottom end. -推桿:該推桿係由一按壓部、一主體、一頸部、一凸柱 及套%所組成,該頸部之前端係設有環凹部,並以套環套 設於環凹部之上,而該凸柱係為-球狀圓錐體; 一針頭座,係設有—變化曲面之基座、—套座及—套合部, 座之上平面之形狀,為一呈有長軸與短軸且近似於橢圓 形之形態,且該上平面之外圍環繞的總長,係小於環凸部内-Push rod: The push rod is composed of a pressing part, a main body, a neck, a protruding post and a sleeve. The front end of the neck is provided with a ring recess, and it is sleeved on the ring recess. The convex column is a spherical cone; a needle base is provided with a base with a varying curved surface, a socket and a socket, and the shape of the plane above the seat is a long axis. And the short axis and a shape similar to an ellipse, and the total length of the periphery of the upper plane is smaller than the inside of the annular convex portion 圍環繞的總長,而該基座之下平面之形狀,係為—圓形之型 態並開設有一圓孔; 一針頭蓋,係成中空之圓錐形態以供蓋合該針頭之用,且 该針頭蓋之外緣環設有數個凸肋; η亥針頭座係以基座穿過該注射筒之圓管體,並以基座上平 面之長軸二端頂抵於環凸部之下緣,以形成一抵擋狀態設至於容 置部,而該針頭座之套座為穿過注射筒的穿孔後,藉以由基座之 下平面與套座密合於穿孔,其推桿所設置之套環能與注射筒之圓 15 M262191 管體密合,以供使用者注射筒内產生推擠壓力注射藥劑,當藥劑 注射完成時,推擠的力量會使該推桿之凸柱進人針頭座之基座, 在凸柱進入基座的同時基座的變化曲面,會逐漸變成圓錐狀曲 、使上平面至下平面中間之變化曲面,逐漸與凸柱密合進 而使凸柱之圓錐體與基座之銜接部,#由迫緊力與摩擦力相結 口’同%因基座上平面外徑尺寸略小於環凸部的内徑尺寸,因 此’當使用者拉拔出推桿時,可將針頭座脫離於容置部並收藏於 注射筒之圓管體中。 2. 如申請專利項所述之具㈣針頭之安纽射器其 中該推桿之主體與頸部間,係以若干連接點予以連接在一 起並在使用後可將主體與頸部折斷分離。The total length of the surrounding circle, and the shape of the plane below the base is a round shape and a round hole is opened; a needle cover is a hollow conical shape for covering the needle, and the The outer edge ring of the needle cover is provided with several convex ribs; the η Hai needle base is passed through the circular tube body of the syringe with a base, and the two ends of the long axis on the upper plane of the base abut against the lower edge of the ring convex part. To form a resisting state, it is set to the accommodating part, and the sleeve of the needle seat is a perforation that passes through the syringe, so that the lower plane of the base and the sleeve are closely fitted to the perforation. The ring can be in close contact with the round 15 M262191 tube body of the syringe, so that the user can generate a pushing force in the syringe to inject the medicine. When the medicine injection is completed, the pushing force will cause the protrusion of the push rod to enter the needle. The base of the seat, when the convex column enters the base, the changing surface of the base will gradually become a conical curve, changing the curved surface from the upper plane to the lower plane, and gradually close to the convex column to make the cone of the convex column. The connection part with the base, #composed by the pressing force and the friction force % Because the outer diameter of the plane on the base is slightly smaller than the inner diameter of the annular convex portion, so when the user pulls out the push rod, the needle seat can be detached from the accommodating portion and stored in the round tube of the syringe. . 2. As described in the patent application, the body of the pusher and the neck are connected by a number of connection points, and the body and the neck can be broken and separated after use. 3. 如申請專利範 中該套環,係 圍第1項所述之具时針頭之安全注射器,其 為橡膠或矽膠所製成。3. The collar, as described in the patent application, is a safety syringe with an hourly needle as described in item 1, which is made of rubber or silicone. 如申請專利範圍第1項所述之具时針頭之安 中該針頭蓋係於使用後可固定置入注射筒之穿 回收體積。 全注射器,其 孔中,以減少As described in item 1 of the scope of the patent application, the needle cap has a needle cap which can be fixed into a syringe to recover the volume after use. Full syringe with holes in it to reduce 5· 如申請專利範圍第1 中該針頭座之套合部 如申請專利範圍第4 中該針頭座之套合部 項所述之具回 收針頭之安全注射器 之圓孔,係可固設一針頭。 項所述之具回收針頭之安全注射器 係可套設一針座。 其 其 16 6.5 · If the fitting part of the needle base in the scope of patent application 1 is the round hole of the safety syringe with a recovery needle as described in the fitting unit of the needle base in scope 4 of the patent application, a needle can be fixed. . The safety syringe with a recovery needle described in the above item may be provided with a needle seat. Its other 16 6.
TW93216670U 2004-10-19 2004-10-19 Safety syringe with retractable needle TWM262191U (en)

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