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Disposable syringe drug reservoir

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Publication number
CN103736176B
CN103736176B CN 201410024549 CN201410024549A CN103736176B CN 103736176 B CN103736176 B CN 103736176B CN 201410024549 CN201410024549 CN 201410024549 CN 201410024549 A CN201410024549 A CN 201410024549A CN 103736176 B CN103736176 B CN 103736176B
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CN 201410024549
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Chinese (zh)
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CN103736176A (en )
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兰海
乔艳
揭华盛
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江西科伦医疗器械制造有限公司
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Abstract

本发明公开了一次性使用贮药注射器,它包括注射器主体和设置于注射器主体内的推拉杆A(5),推拉杆A(5)的内部设有轴向通孔(6),推拉杆B(7)从轴向通孔(6)后端插入推拉杆A(5)内部,轴向通孔(6)的前端设置有滑动阀门(8),推拉杆A(5)的后端设置有手指抓取部B(9),推拉杆B(7)前端、推拉杆A(5)和滑动阀门(8)形成密闭腔室A(10),推拉杆A(5)前端、滑动阀门(8)和注射器主体形成密闭腔室B(11)。 The present invention discloses a disposable drug reservoir syringe which comprises a syringe body and a push-pull rod is provided A (5) within the syringe body, the inner push rod A (5) is provided with an axial through hole (6), the push rod B (7) from the axial through hole (6) is inserted into the rear end of the push rod a (5) inside an axial through-hole (6) is provided with a front end of a slide valve (8), the rear end of the push rod a (5) is provided with a finger gripping portion B (9), the front end of the push rod B (7), the push rod A (5) and a slide valve (8) forming a closed chamber A (10), push-pull rod A (5) the front end, the slide valve (8 ) and the syringe body form a sealed chamber B (11). 本发明的有益效果是:大幅降低、节约了成本,简化了注射的操作程序,避免污染,结构简单,稳定性和可靠性高,操作方便,易于推广应用,能够满足两种药物的完全混合,调节方便灵活。 Advantageous effects of the invention are: significantly reduced, cost savings, simplification of the injection procedure, to avoid contamination, simple structure, high reliability and stability, easy to operate, easy application, mixing of the two drugs can be fully satisfied, convenient and flexible adjustment.

Description

一次性使用贮药注射器 Disposable syringe drug reservoir

技术领域 FIELD

[0001 ]本发明涉及医用注射器技术领域,特别是一次性使用贮药注射器。 [0001] The present invention relates to a medical injector technical field, particularly disposable drug reservoir using a syringe.

背景技术 Background technique

[0002]传统的注射操作过程中先要用注射器抽出溶媒(即注射用水),再将注射器针头扎入溶质瓶(粉针剂或水针剂),然后推出溶媒与溶质进行混合溶化,最后再抽出混合药液到注射器内才能对人体进行注射或给输液瓶内加药。 [0002] Traditional shot operation must first extraction solvent (i.e., water for injection), then the syringe needle stuck into a solute bottle (powder or water injection), and then introduced solubilizing solvent and solute mixing syringe, and finally mixed out liquid into the syringe to the human body by injection or infusion bottle to dosing. 这种操作方法程序复杂,护士劳动量大,药液要经几次转移,容易污染。 This method of operation procedures are complicated, labor intensive nurse, after several liquid to transfer easily contaminated.

[0003]目前,出现了将溶媒和溶质共同贮存于同一注射器中的结构,如中国专利2008200292616公开的“粉针剂无菌混药预灌封注射器”、中国专利2008200301441公开的“双室卡式瓶粉针剂预灌装注射器”、中国专利2012202806593公开的“水粉合一快速注射器”等,其结构均是由一活塞将粉剂储腔与水剂储腔分隔开,使用时,或通过针刺透该活塞实现水粉混合,或通过推动活塞使活塞与针筒间出现间隙从而实现水粉的混合。 [0003] Currently, there has been the co-solvent and a solute is stored in the same syringe structure, as disclosed in Chinese Patent No. 2008200292616 "sterile powder drug mixing prefilled syringe", Chinese Patent No. 2008200301441 disclosed in "dual chamber bottle card powder prefilled syringe ", Chinese Patent No. 2012202806593 disclosed in" fast syringe gouache unity "and the like, and their structures were powder reservoir and is the agent reservoir are separated by a piston, in use, through or by needling Beneath the piston to achieve mixing, mixing or by pushing the piston to achieve a gap between the piston and the occurrence Beneath the syringe. 但现有结构中均存在分隔水粉的活塞只能向针头方向单方向运动,当进行水剂向粉剂腔推送的过程中也极易造成分隔水粉的活塞被动向针头方向移动,进而使得盛放粉剂的腔体的体积成为最终容纳水粉混合剂的最大盛装体积,活塞向针头方向的移动就造成了该体积的进一步减小,因而此类注射器通常存在水剂不能完全注入粉剂盛放腔的问题,或在混合过程中因该容腔内压力过大,药液从针头排出的现象,不能满足正常注射需求。 However, the existing structures are present separated Beneath piston motion in one direction only the direction of the needle, when the process proceeds to push liquid medication powder is also easy to cause the chamber separated by a piston movements Beneath the needle direction, thus making the powders bloom volume of the cavity containing the largest volume of the final mixture receiving watercolor, the piston moves in the direction of the needle causing further reduction of the volume, and thus the presence of such agent is usually not completely syringe injection problems powders accommodating chamber, or because of the excessive pressure receiving chamber, the drug solution discharged from the needle during the mixing phenomenon, not meet the normal requirements for injection. 同时,现有水粉共贮注射器的组件多、结构复杂,进一步降低了注射器使用的稳定性和可靠性,且加工、组装工艺复杂,成本高,制约着此类注射器的推广应用。 At the same time, co-existing Beneath reservoir syringe assembly more complex structure, further reducing the stability and reliability of use of the syringe, and processing, assembling process is complicated, costly and restricts the application of such syringes.

发明内容 SUMMARY

[0004]本发明的目的在于克服现有技术的缺点,提供一种降低成本、操作方便、安全可靠的一次性使用贮药注射器。 [0004] The object of the present invention to overcome the disadvantages of the prior art, to provide a lower cost, easy to operate, safe and reliable drug reservoir disposable syringe.

[0005]本发明的目的通过以下技术方案来实现:一次性使用贮药注射器,它包括注射器主体和设置于注射器主体内的推拉杆A,注射器主体包括套筒、设置于套筒前端部的锥头和设置于套筒后端的手指抓取部A,锥头的药剂出口处设置有密封件,推拉杆A从套筒后端插入套筒内部,推拉杆A的外壁与套筒的内壁紧密配合,推拉杆A的内部设有轴向通孔,轴向通孔内设置有推拉杆B,推拉杆B从轴向通孔后端插入推拉杆A内部,推拉杆B的外壁与轴向通孔的孔壁紧密配合,轴向通孔的前端设置有滑动阀门,推拉杆A的后端设置有手指抓取部B,推拉杆B前端、推拉杆A和滑动阀门形成密闭腔室A,推拉杆A前端、滑动阀门和注射器主体形成密闭腔室B。 [0005] The object of the present invention is achieved by the following technical solution: a drug reservoir disposable syringe comprising a syringe body and disposed within the syringe body in the push-pull rod A, the syringe body includes a sleeve, a sleeve disposed in the tapered distal portion and a gripping head provided at the rear end of the sleeve portion a of the finger, the agent is provided at the exit cone a seal, the inner sleeve is inserted into the push rod a from the rear end of the sleeve, a tight fit between the outer wall of the sleeve of the push-pull rod a , a push-pull rod is provided with an internal axial through hole, the through hole is provided with an axial push rod B, B push-pull rod is inserted from the rear end of the axial through hole inside a push-pull rod, the push rod and the outer wall of the axial through hole B mating hole wall, the axial front end of the through hole has a slide valve, the push rod is provided with a rear end a of the finger gripping portion B, the front end of the push rod B, a push-pull rod and the slide valve forms a closed chamber a, the push rod A front end of the slide valve and the syringe body form a sealed chamber B.

[0006]所述的滑动阀门包括圆柱型导位柱和设置于导位柱前端的密封帽,导位柱设置于轴向通孔内,密封帽的后端面与推拉杆A的前端面接触密封,导位柱的外壁与轴向通孔紧密连接,导位柱的外壁上设置有轴向槽。 The slide valve [0006] The bit comprises a cylindrical guide post and a guide provided in the front end position of the sealing cap column, the bit guide post is positioned in the axial through hole, the rear end surface of the sealing cap in contact with the sealing surface of the distal end of the push rod A , the outer wall of the guide column position close connection with the axial through hole, the outer wall of the lead-bit column is provided with an axial groove.

[0007]所述的手指抓取部A为凸出于套筒外表面的片状指托A,所述的手指抓取部B为凸出于推拉杆A外表面的片状指托B。 A finger gripping portion [0007] of the outer surface of the sleeve projecting finger rest sheet A, the finger gripping portion B is convex to the outer surface of the push rod A sheet-like finger rest B.

[0008]所述的手指抓取部B还包括位于片状指托B前侧、设置于推拉杆A外表面的手指让位槽。 Finger [0008] portion of the gripping means B also includes a sheet-like front bracket B side, disposed on an outer surface of the push-pull rods A finger grooves give way.

[0009]所述的推拉杆B的后端设置有推柄,所述的推拉杆A的后端面上设置有与推柄配合的凹槽。 The rear end of the push rod B [0009] The push handle is provided with, disposed rear end face of the push rod A groove cooperating with a push handle.

[0010]当推拉杆B完全推入到推拉杆A轴向通孔时,推柄的后端面与手指抓取部B的后端面相平齐,推拉杆B的前端面与推拉杆A的前端面相平齐。 [0010] When the push rod B push-pull rod is fully pushed into the axial through hole A, the rear end of the rear end surface of the finger gripping portion of the push handle is flush with B, B push-pull rod and the end surface of the front end of the push rod A face flush.

[0011 ]所述的密封件为呈圆筒形的螺纹接口和通过螺纹与螺纹接口配合密封连接的螺旋帽,螺纹接口固设于套筒前端面且套装于锥头外部,螺旋帽的内部设置有用于容置锥头的锥形腔,螺旋帽的锥形腔与锥头间为紧密配合,螺旋帽与螺纹接口通过螺纹密封连接后形成对锥头的药剂出口的密封。 Said sealing member [0011] The cylindrical screw cap and the threaded connection by a screw threaded connection with the fitting of a sealed connection, threaded connection fixed to the front end face of the sleeve and the cone to suit the outside, is provided inside the screw cap cone for accommodating the conical cavities, after the close fit, threaded connection with the screw cap sealed by a threaded connection between the screw cap conical cavity and form a seal against cone outlet cone of an agent.

[0012]所述的锥头为6%鲁尔圆锥接头。 Cone [0012] The 6% luer taper.

[0013]所述的密闭腔室A预装有药剂A,所述的密闭腔室B预装有药剂B。 [0013] The closed chamber A preloaded with drug A, B of the closed chamber preloaded with agent B.

[0014]所述的药剂A为液体或粉体,药剂B为液体或粉体。 [0014] The agent A is a liquid or a powder, liquid or powder medicament B.

[0015]本发明具有以下优点:本发明将注射药物的包装与注射器两大产业整合,将原来的三种包装整合到了一支注射器上,大幅降低、节约了成本,提高了工作效率。 [0015] The present invention has the following advantages: The invention will be packaged with a syringe injection drugs two major industry consolidation, will integrate the original packaging to three on a syringe, dramatically reducing the cost savings, improve work efficiency.

[0016] 不需要配药用注射器,简化了注射的操作程序,避免配药抽吸药水过程中因操作不当引起的污染及浪费,两种药物都不与外界接触,完全避免了药品本身的污染和药品对环境的污染,符合药品的临床使用规范。 [0016] does not require dispensing with a syringe, simplifying the injection procedure and avoid pumping syrup during dispensing due to pollution and waste caused by improper operation, the two drugs do not contact with the outside, completely avoid contamination of the drugs themselves, and Drug pollution of the environment, consistent with the clinical use of drugs specifications.

[0017]节省注射前粉剂配制时间,适用于快速配药及注射,便于按常规药方药物注射,及战时或灾时的伤病员自救。 [0017] The powder formulation before injection time savings for fast dispensing and injections, according to conventional prescription drugs to facilitate injection, and when the victim self disaster or war.

[0018]结构简单,组件少,进一步降低了制造成本,保证了使用的稳定性和可靠性,外形美观,操作方便,易于推广应用。 Simple [0018] structure, less assembly, further reducing the manufacturing cost, ensure the stability and reliability of use, pleasing in appearance, easy to operate, easy application.

[0019]设置有密封件,能够避免在两种药物混合过程中药剂因压力过大从注射器内排出的现象,安全可靠,密闭式螺纹方便连接操作,降低了操作难度,同时又安全无菌;推拉杆A、推拉杆B和注射器主体的结构设计,能够满足两种药物的完全混合,调节方便灵活,适用范围更广,实用性更强,滑动阀门的设计能避免产品的二次使用。 [0019] provided with a seal, the phenomenon can be avoided due to excessive pressure discharged from the syringe during the drug mixing the two drugs, safe, reliable, easy sealed threaded connection operation, reducing the difficulty of the operation as well as safe sterilized; push rod a, B push-pull rod and the syringe body structure designed to meet the complete mixing of the two drugs, convenient and flexible regulation, broader scope, more practical, the slide valve is designed to avoid the use of secondary products.

附图说明 BRIEF DESCRIPTION

[0020]图1为本发明的结构示意图 [0020] FIG. 1 is a schematic structural diagram of the present invention,

[0021]图2为本发明的滑动阀的结构示意图 [0021] The schematic structure of the sliding valve of the present invention. FIG. 2

[0022]图中,1-套筒,2-锥头,3-手指抓取部A,4-密封件,5_推拉杆A,6_轴向通孔,7_推拉杆B,8-滑动阀门,9-手指抓取部B,10-密闭腔室A,11-密闭腔室B,12-手指让位槽,13-推柄,14-凹槽,15-导位柱,16-密封帽,17-轴向槽,18-螺纹接口,19-螺旋帽。 [0022] FIG, 1 sleeve, cone 2-, 3- finger gripping portion A, 4- seal member, the push rod 5_ A, 6_ axial through hole, the push rod 7_ B, 8- slide valve, 9- finger gripping section B, 10- tight chamber A, 11- tight chamber B, 12- finger grooves give way, push handle 13-, 14- grooves, guide bit 15 column, 16- sealing cap, 17 axial grooves, threaded connection 18, 19 screw cap.

具体实施方式 detailed description

[0023]下面结合附图对本发明做进一步的描述,本发明的保护范围不局限于以下所述: [0023] DRAWINGS further description of the invention, the scope of the present invention is not limited to the following said:

[0024]如图1所示,一次性使用贮药注射器,它包括注射器主体和设置于注射器主体内的推拉杆A5,注射器主体包括套筒1、设置于套筒1前端部的锥头2和设置于套筒1后端的手指抓取部A3,锥头2的药剂出口处设置有密封该药剂出口的密封件4,推拉杆A5从套筒1后端插入套筒1内部,推拉杆A5的外壁与套筒1的内壁紧密配合,推拉杆A5与套筒1间密封性良好,推拉杆A5的内部设有轴向通孔6,轴向通孔6内设置有推拉杆B7,推拉杆B7从轴向通孔6后端插入推拉杆A5内部,推拉杆B7的外壁与轴向通孔6的孔壁紧密配合,推拉杆B7与轴向通孔6间密封性良好,轴向通孔6的前端设置有密封该轴向通孔6的滑动阀门8,推拉杆A5的后端设置有手指抓取部B9,推拉杆B7前端、推拉杆A5和滑动阀门8形成密闭腔室A10,推拉杆A5前端、滑动阀门8和注射器主体形成密闭腔室B11。 [0024] 1, the disposable drug reservoir syringe which comprises a syringe body and disposed within the syringe body in the push-pull rod A5, a syringe body comprises a sleeve provided at a distal end portion of the sleeve and the cone 2 1 is provided at the rear end of the finger gripping portion of the sleeve A3, the drug outlet cone 2 is provided with a sealing agent outlet of the seal member 4, the push rod is inserted into the inner sleeve 1 A5 1 from the rear end of the sleeve, the push-pull rod A5 between the outer wall of the sleeve 1 with a close fit, a good push-pull rod and the sleeve a sealing A5, A5 of the push-pull rod is provided with an internal axial through hole 6, an axial through hole 6 provided with a push-pull rods B7, B7 push rod from the rear end of the axial through hole 6 is inserted inside the push rod A5, push rod hole wall and the outer wall of the axial through hole 6 close fit B7, B7 good push-pull rods to the axial sealing the through hole 6, the axial through hole 6 the front end is provided with a sealing axial bore 8 of the slide valve 6, the rear end of the push rod A5 is provided with a finger gripping portion B9, B7 front end of the push rod, the push rod 8 form a slide valve and A5 tight chamber AlO, push-pull rods A5 front end, the slide valve 8 and the syringe body form a sealed chamber B11.

[0025]结合图1、图2所示,所述的滑动阀门8包括圆柱型导位柱15和设置于导位柱15前端的密封帽16,导位柱15设置于轴向通孔6内,密封帽16的后端面与推拉杆A5的前端面接触密封,导位柱15的外壁与轴向通孔6紧密连接,导位柱15的外壁上设置有轴向槽17。 [0025] in conjunction with FIGS. 1 and 2, the slide valve 8 comprises a cylindrical guide 15 and a stationary post 15 distal seal cap disposed on a guide post 16 bits, the bit guide post 15 disposed within an axial through hole 6 , the sealing cap sealing the rear end surface 16 in contact with the front end face of the push rod A5, the outer wall of the axial through hole 15 of the guide post 6 bit tight, that the outer wall of the guide post 15 of the bit provided with an axial groove 17.

[0026]如图1所示,所述的密封件4为呈圆筒形的螺纹接口 18和通过螺纹与螺纹接口18配合密封连接的螺旋帽19,螺纹接口18固设于套筒1前端面且套装于锥头2外部,螺纹接口18的内表面设置有连接螺纹,螺旋帽19的外圆周面设置有连接螺纹,所述的锥头2为6%鲁尔圆锥接头,螺旋帽19的内部设置有用于容置锥头2的锥形腔,该锥形腔的形状和尺寸与锥头2的形状和尺寸相配合,螺旋帽19的锥形腔与锥头2间为紧密配合,螺旋帽19与螺纹接口18通过螺纹密封连接后形成对锥头2的药剂出口的密封。 [0026] 1, the seal member 4 is a threaded cylindrical interface 18 and the interface 18 by a screw threaded connection with a screw cap seal 19, 18 is fixed to the threaded connection the distal end surface of the sleeve 1 and set the external cone 2, the inner surface of the interface 18 is provided with a threaded screw connection, the outer circumferential surface of the screw cap 19 is provided with a connecting thread, said cone 2 6% luer taper, the inside of the screw cap 19 is provided for receiving the tapered conical cavity 2, the cavity is tapered cone shape and size to the shape and size of the two cooperating screw cap conical cavity and the two cones 19 is a tight fit, screw cap after the interface 19 with the threads 18 formed by the threaded connection seal of the cone seal 2 agent outlet. 锥头2为6%鲁尔圆锥接头,方便与现有通用注射针的配合使用。 Cone 2 6% luer taper, and easy to use with existing common injection needle. 螺纹接口18和螺旋帽19的设计既能在通过螺纹连接后密封6%鲁尔圆锥接头的药剂出口,又方便通过螺纹旋出螺旋帽19,将合适规格的注射针安装于6%鲁尔圆锥接头上进行注射。 Threaded screw cap 18 and the design of both the sealing agent outlet 19 a 6% luer taper after screwing through, and convenient by screwing the screw cap 19, the injection needle of suitable size attached to a 6% Luer taper the injection joint. 结构简单,密封性能好,且操作方便,通用性强。 Simple structure, good sealing performance, and easy operation, versatility.

[0027]所述的手指抓取部A3为凸出于套筒1外表面的片状指托A,所述的手指抓取部B9为凸出于推拉杆A5外表面的片状指托B。 Finger gripping portion A3 [0027] is projected on the outer surface of the sleeve 1 of the sheet-like finger rest A, the finger gripping portion of the push rod projecting B9 to the outer surface of the sheet-like finger rest A5 B .

[0028]所述的手指抓取部B9还包括位于片状指托B前侧、设置于推拉杆A5外表面的手指让位槽12。 Finger [0028] B9 said gripping portion further comprises a sheet-like front side of the finger supports B, set at the outer surface of the push rod A5 finger groove 12 give way.

[0029]所述的推拉杆B7的后端设置有推柄13,所述的推拉杆A5的后端面上设置有与推柄13配合的凹槽14。 [0029] The rear end of the push rod is provided with a push handle 13 B7 of said push rod is provided with a recess 13 cooperating with a push handle 14 A5 rear end face.

[0030]所述的密闭腔室A10预装有药剂A,所述的密闭腔室B11预装有药剂B。 Tight chamber [0030] A10 is preloaded with the agent A, the tight chamber preloaded with agent B. B11

[0031 ]所述的药剂A为液体或粉体,药剂B为液体或粉体。 [0031] The agent A is a liquid or a powder, liquid or powder medicament B.

[0032]当推拉杆B7完全推入到推拉杆A5轴向通孔6时,推柄13的后端面与手指抓取部B9的后端面相平齐,推拉杆B7的前端面与推拉杆A5的前端面相平齐。 [0032] When the push rod is pushed into the fully B7 A5 push rod axially through-hole 6, the rear end 13 of the push handle and the rear end surface of the finger gripping portion is flush B9, B7 push rod and the push rod distal end surface A5 flush with the front end surface.

[0033]本发明的工作过程如下:首先用手把持住手指抓取部B9,向下推动推拉杆B7,通过药剂A推动滑动阀门8向下滑动,密封帽16的后端面与推拉杆A5的前端面分离解除密封,从而密闭腔室A10与密闭腔室B11通过轴向槽17而连通,药剂A从轴向槽17流入密闭腔室B11内,与药剂B混合,此过程中推拉杆A5相对于注射器主体是固定的,不会产生位移,因而不会对锥头2的密封件4造成压力;当药剂A的贮存量大于密闭腔室B11的剩余体积时可以在下推推拉杆B7的同时向上提推拉杆A5,从而可使药剂A全部顺利进入密闭腔室B11,因此本发明的密闭腔室B11的体积是可以随时任意调节的,且调节的过程中同样不会对锥头2的密封件4造成压力;当推拉杆B7的推柄13完全落入推拉杆A5的凹槽14内时,药剂A被完全排入密闭腔室B11内,待药剂A与药剂B完全混合后,手持注射器主体使锥头2略向上 [0033] The operation of the present invention is as follows: firstly grip the finger gripping portion B9, B7 pushing the push rod down, slide down the slide valve 8 by hand pushing the agent A, the sealing cap 16 and the rear end of the push rod A5 separating unsealed distal end surface, such that the sealed chambers A10 and B11 and the sealed chamber 17 communicate through the axial grooves, the agent A flows into the sealed chamber B11 from the axial groove 17, mixing with drug B, during which the push rod relative A5 fixed to the syringe body is not displaced, and thus will not cause pressure on the cone seal 2, 4; a drug while when storage capacity is larger than the remaining volume of the sealed chamber may be lower pushing lever B11 B7 upwardly process provide push-pull rod A5, so that all can smoothly enter the drug a tight chamber B11, B11 and therefore the volume of the sealed chamber of the present invention can be adjusted at any time, and is not adjusted in the same cone seal 2 of 4 create pressure; push-pull rod when the push handle 13 B7 fairly fall recess A5 when push rod 14, the agent a is completely discharged into the sealed chamber B11, until completely mixed with the pharmaceutical agent a B, handheld syringe body 2 that the cone slightly upwardly 再旋开螺旋帽19,螺旋帽19脱离锥头2,取合适规格的注射针安装拧紧于锥头2上,按常用注射方法注射,注射时,手持手指抓取部A3,向下推动推拉杆A5与推拉杆B7相平齐的末端,推动推拉杆B7进行注射,当滑动阀门8的密封帽16接触到注射器主体的端面时,继续推动推拉杆B7,滑动阀门8的导位柱15回收至轴向通孔6内,当推拉杆B7的前端面紧密接触密封帽16的后端面时, 19 and then unscrew the screw cap, the screw cap 19 from the cone 2, take the appropriate size needle mounted secured on the cone 2, an injection in the usual method of injection, injection, holding a finger gripping portion A3, pushing down the push rod A5 B7 flush with the push rod end, pushing the push rod B7 injection, when the sealing cap 16 comes into contact with the slide valve end face 8 of the syringe body, continue to push the push rod B7, the slide valve 15 of the guide post 8 bits recovered within the axial through hole 6, when the front end surface of the push rod B7 in close contact with the rear end face 16 of the sealing cap,

完成注射ο Completion of the injection ο

Claims (8)

1.一次性使用贮药注射器,它包括注射器主体和设置于注射器主体内的推拉杆A(5),注射器主体包括套筒(1)、设置于套筒(1)前端部的锥头(2)和设置于套筒(1)后端的手指抓取部A(3),其特征在于:锥头(2)的药剂出口处设置有密封件(4),推拉杆A(5)从套筒(1)后端插入套筒(1)内部,推拉杆A( 5 )的外壁与套筒(1)的内壁紧密配合,推拉杆A( 5 )的内部设有轴向通孔(6),轴向通孔(6)内设置有推拉杆B(7),推拉杆B(7)从轴向通孔(6)后端插入推拉杆A(5)内部,推拉杆B(7)的外壁与轴向通孔(6)的孔壁紧密配合,轴向通孔(6)的前端设置有滑动阀门(8),推拉杆A(5)的后端设置有手指抓取部B(9),推拉杆B(7)前端、推拉杆A(5)和滑动阀门(8)形成密闭腔室A(10),推拉杆A(5)前端、滑动阀门(8)和注射器主体形成密闭腔室B(ll);所述的滑动阀门(8)包括圆柱型导位柱(15)和设置于导位柱(15)前端的密封帽(16), 1. disposable drug reservoir syringe which comprises a syringe body and disposed within the syringe body in the push-pull rod A (5), a syringe body comprising a sleeve (1), is provided in the sleeve (1) cone (2 distal portion ) and a gripping portion provided a (3) of the sleeve (1) of the rear end of the finger, wherein: cone (2) at the outlet of the drug provided with a seal (4), the push rod a (5) from the sleeve an inner wall (1) is inserted into the rear end of the sleeve (1) inside the push rod a (5) of the outer wall of the sleeve (1) close fit inside the push rod a (5) is provided with an axial through hole (6), is provided with a push-pull rod B (7), push-pull rod B (7) from the axial through hole (6) is inserted into the rear end of the push rod a (5) inside, push-pull rod B (7) in the axial through hole (6) of the outer wall closely with axial through bore hole wall (6), the axial through hole (6) is provided with a front end of a slide valve (8), the rear end of the push rod a (5) is provided with finger gripping portion B (9) , push-pull rod B (7) front end, the push rod A (5) and a slide valve (8) forming a closed chamber A (10), push-pull rod A (5) the front end, the slide valve (8) and the syringe body form a tight chamber B (ll); said slide valve (8) comprises a cylindrical lead-bit column (15) and disposed in the lead-bit column (15) of the front end of the sealing cap (16), 位柱(15)设置于轴向通孔(6)内,密封帽(16)的后端面与推拉杆A(5)的前端面接触密封,导位柱(15)的外壁与轴向通孔(6)紧密连接,导位柱(15)的外壁上设置有轴向槽(17);所述的手指抓取部A(3)为凸出于套筒(1)外表面的片状指托A,所述的手指抓取部B(9)为凸出于推拉杆A(5)外表面的片状指托B。 Bit column (15) disposed within the axial through hole (6), the sealing cap (16) and the rear end surface of the push rod A (5) of the front end face sealing contact with the outer wall of the guide bit column (15) and the axial through hole (6) tightly connected to the outer wall of the lead-bit column (15) is provided with an axial groove (17); said finger gripping portion a (3) is protruding from the sleeve (1) refers to a sheet-like surface of the outer holder a, the finger gripping portion B (9) is a push rod projecting from the a (5) of the outer surface of the sheet-like finger rest B.
2.根据权利要求1所述的一次性使用贮药注射器,其特征在于:所述的手指抓取部B(9)还包括位于片状指托B前侧、设置于推拉杆A(5)外表面的手指让位槽(12)。 The drug reservoir disposable syringe according to claim 1, wherein: said finger gripping portion B (. 9) further comprises a sheet-like front bracket refers to the B side, the push rod disposed in the A (5) the outer surface of the finger demise groove (12).
3.根据权利要求1所述的一次性使用贮药注射器,其特征在于:所述的推拉杆B(7)的后端设置有推柄(13),所述的推拉杆A(5)的后端面上设置有与推柄(13)配合的凹槽(14)。 The drug reservoir disposable syringe according to claim 1, wherein: the rear end of the push rod B (7) is provided with a push handle (13), said push rod A (5) of the rear end face provided with a groove (14) cooperating with a push handle (13).
4.根据权利要求3所述的一次性使用贮药注射器,其特征在于:当推拉杆B(7)完全推入到推拉杆A(5)轴向通孔(6)时,推柄(13)的后端面与手指抓取部B(9)的后端面相平齐,推拉杆B(7)的前端面与推拉杆A(5)的前端面相平齐。 According to claim disposable drug reservoir syringe 3, wherein: when the push-pull rod B (7) completely pushed into the push-pull rod A (5) an axial through-hole (6), the push handle (13 ) and the rear end surface of the finger gripping portion B (9) is flush with the rear end face, the push rod B (7) of the front end surface of the push-pull rod a (5) is flush with the front end surface.
5.根据权利要求1所述的一次性使用贮药注射器,其特征在于:所述的密封件(4)为呈圆筒形的螺纹接口( 18)和通过螺纹与螺纹接口( 18)配合密封连接的螺旋帽(19),螺纹接口(18)固设于套筒(1)前端面且套装于锥头(2)外部,螺旋帽(19)的内部设置有用于容置锥头(2)的锥形腔,螺旋帽(19)的锥形腔与锥头(2)间为紧密配合,螺旋帽(19)与螺纹接口(18)通过螺纹密封连接后形成对锥头(2)的药剂出口的密封。 The drug reservoir disposable syringe according to claim 1, wherein: said seal (4) of cylindrical shape threaded connection (18) and sealed by mating threads threaded connection (18) set internal screw cap (19) connected to the threaded connector (18) fixed to the sleeve (1) and set in a front end face cone (2) an external, screw cap (19) for receiving the cone (2) between the conical cavities, screw cap (19) with a cone conical cavity (2) is a close fit, screw cap (19) with a threaded connection (18) of the cone forming agent (2) is sealed by a threaded connection seal exports.
6.根据权利要求5所述的一次性使用贮药注射器,其特征在于:所述的锥头(2)为6%鲁尔圆锥接头。 The drug reservoir disposable syringe according to claim 5, wherein: said cone (2) 6% luer taper.
7.根据权利要求1所述的一次性使用贮药注射器,其特征在于:所述的密闭腔室A(10)预装有药剂A,所述的密闭腔室B(ll)预装有药剂B。 The drug reservoir disposable syringe according to claim 1, wherein: said closed chamber A (10) preloaded with agent A, the tight chamber B (ll) preloaded with drug B.
8.根据权利要求7所述的一次性使用贮药注射器,其特征在于:所述的药剂A为液体或粉体,药剂B为液体或粉体。 According to claim disposable drug reservoir to the syringe 7, wherein: said powder or liquid agent A, agent B is a liquid or a powder.
CN 201410024549 2014-01-20 2014-01-20 Disposable syringe drug reservoir CN103736176B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6149628A (en) * 1998-07-20 2000-11-21 Szapiro; Jaime Luis Syringe with two variable volume chambers for containing and administering mixtures of products provided separately
CN101439211A (en) * 2007-11-22 2009-05-27 亨克-萨斯,沃尔夫有限公司 Syringe
CN202844259U (en) * 2012-10-30 2013-04-03 无锡耐思生物科技有限公司 Injection mixing pre-filling and pre-sealing injector
CN203663178U (en) * 2014-01-20 2014-06-25 江西科伦医疗器械制造有限公司 Disposable medicament storage injector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6149628A (en) * 1998-07-20 2000-11-21 Szapiro; Jaime Luis Syringe with two variable volume chambers for containing and administering mixtures of products provided separately
CN101439211A (en) * 2007-11-22 2009-05-27 亨克-萨斯,沃尔夫有限公司 Syringe
CN202844259U (en) * 2012-10-30 2013-04-03 无锡耐思生物科技有限公司 Injection mixing pre-filling and pre-sealing injector
CN203663178U (en) * 2014-01-20 2014-06-25 江西科伦医疗器械制造有限公司 Disposable medicament storage injector

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