|Publication number||CN103736176 B|
|Application number||CN 201410024549|
|Publication date||6 Apr 2016|
|Filing date||20 Jan 2014|
|Priority date||20 Jan 2014|
|Also published as||CN103736176A|
|Publication number||201410024549.4, CN 103736176 B, CN 103736176B, CN 201410024549, CN-B-103736176, CN103736176 B, CN103736176B, CN201410024549, CN201410024549.4|
|Inventors||兰海, 乔艳, 揭华盛|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (4), Classifications (2), Legal Events (3)|
|External Links: SIPO, Espacenet|
技术领域 TECHNICAL 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。  The present invention relates to the technical field of medical syringes, in particular prefilled syringe reservoir is disposable.
背景技术 Background technique
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。  The traditional process of injection with a syringe out of operation must first solvent (ie, water for injection), and then the syringe needle pierced into the solute bottle (powder or water injection), and then launch the solvent and solute mixed melt, and finally out of mixed 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 and labor intensive nurse, after several liquid to transfer easily contaminated.
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。  Currently, there has been the co-solvent and solute stored in the same syringe structures, such as China Patent 2008200292616 Publication of "sterile powder mixed with medicated pre-filled syringe," China Patent 2008200301441 Publication of "dual chamber bottle card injection prefilled syringe, "China Patent 2012202806593 Publication of" gouache syringe one rapid "and its structure are made from a powder reservoir piston chamber and a liquid reservoir chamber separated, use, or by needling through the piston realize gouache mixing, or by pushing the piston of the gap in order to achieve gouache mixing occurs between the piston and the cylinder. 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 gouache piston movement only in one direction to the direction of the needle, when the agent to carry out the process of the powder chamber push too easily result in movements being separated by a piston gouache needle direction, thus making full bloom powder the volume of the containing chamber becomes the maximum volume of the final mixture of accommodating watercolor, movement of the piston to the needle direction and causing a further decrease of the volume, and thus the presence of such agent is usually not completely syringe injection problems of powder receiving cavity, or in the mixing process due to the cavity of the pressure, the liquid discharged from the needle phenomenon, can not meet the normal injection needs. 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。 Meanwhile, the total storage components of conventional syringe gouache more complex structure, further reducing the stability and reliability of the use of the syringe, and the processing, assembly process is complicated and costly, which restricts the application of such syringes.
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。  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 storage of drugs disposable syringe.
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。  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 push rod A, the syringe body comprises a sleeve, disposed on the tapered distal end portion of the sleeve the rear end of the sleeve and the head of the finger disposed on the grip portion a, the outlet of the medicament is provided with a tapered head seal a push-pull rod is inserted inside the sleeve from the rear end of the sleeve, the inner wall and the outer wall of the sleeve of the push-pull rod a close fit internal a push-pull rod is provided with an axial through-hole axial through-hole is provided with a push rod B, B push-pull rod is inserted from the rear end of the axial through-hole internal push rod a, push rod and the outer wall of the axial through hole B hole wall closely with the front end of the axial through hole of a slide valve, push-pull rod a rear end is provided with a finger grip portion B, B push-pull rod tip, push lever a and slide valve to form a closed chamber a, push-pull rod A front end of the slide valve and the syringe body form a sealed chamber B.
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。 Slide valve  comprises a cylindrical guide post position and set in front of the sealed lead-bit column cap, lead-bit column is set to the axial through-hole after the seal cap sealing contact with the push rod A front face , closely connected with the outer wall of the axial through-hole lead-bit column, the outer wall of the lead-bit column is provided with axial grooves.
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 grip portion A  wherein the outer surface of the sleeve is protruding from the sheet tray means A, B said finger grip portion protruding from the outer surface of the push rod A sheet refers to care B.
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  The fetch unit B also includes a sheet tray B refers to the front side, provided on the outer surface of the push rod A finger grooves give way.
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。 B push-pull rod rear end of  described is provided with a push handle, the rear end face of the push rod A is provided with a push handle with the recess.
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。  When the push-pull rod B push-pull rod is completely pushed into the axial through-hole A when the rear end surface of the rear face of the finger grip portion B of the push handle is flush with the front end surface of the push rod and the push rod A B front end 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。 Seal  is the cylindrical threaded connector and screw cap is screwed with a threaded connection with the sealing of the connection, threaded connection fixed on the front end face of the sleeve and cone suit to external and internal set screw cap there accommodating cone conical cavity of pharmaceutical exports cone sealed between the screw cap and the cone of conical cavities closely with screw cap and thread through the thread interface to form a sealed connection.
所述的锥头为6%鲁尔圆锥接头。 Cone  The 6% luer taper.
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。  The closed chamber A preloaded with agent A, the closed chamber B preloaded with agent B.
所述的药剂A为液体或粉体，药剂B为液体或粉体。  wherein A is a liquid or powder drug, a liquid or powder medicament B.
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。  The present invention has the following advantages: The invention will be injecting drug packaging and syringe two industry consolidation, will integrate three original packaging to the one syringe, dramatically reducing the cost savings, improve work efficiency.
 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。  does not need to dispense with a syringe, injecting simplified operating procedures to avoid pumping syrup dispensing process due to pollution and waste caused by improper operation, the two drugs are not in contact with the outside world, completely avoid the pollution and the drugs themselves Drug pollution of the environment, in line with the clinical use of the drug specification.
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。  before saving injection powder preparation time for fast dispensing and injection, easy to follow the conventional prescription drug injection, self-help and wounded when war or disaster.
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  structure, less components, further reducing manufacturing costs, to ensure the stability and reliability of use, appearance, convenient operation, easy application.
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。  provided with a seal, the two drugs can be avoided in the process of mixing the agent due to excessive pressure discharged from the syringe phenomenon, safe, reliable, easy sealed threaded connection operation, reducing the difficulty of the operation, as well as safe sterile; push lever a, B push-pull rod and the syringe body structure designed to meet the complete mixing of the two drugs, convenient and flexible adjustment, the scope of a broader, more practical, the slide valve is designed to avoid the use of secondary products.
附图说明 BRIEF DESCRIPTION
图1为本发明的结构示意图  FIG. 1 a schematic view of the structure of the present invention.
图2为本发明的滑动阀的结构示意图  sliding valve structure diagram in Figure 2 of the present invention
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。  FIG, 1 sleeve, 2 cone, 3-finger grip portion A, 4- seals, push rod 5_ A, 6_ axial through-hole, 7_ push rod B, 8- slide valve, 9-finger grip portion B, 10- airtight chamber A, 11- airtight chamber B, 12- finger grooves give way, 13 push handle, 14 groove, 15-bit column guide, 16 sealing cap, 17 axial groove, 18-threaded connection 19-screw cap.
具体实施方式 detailed description
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:  The following DRAWINGS The invention will be further described, the scope of the present invention is not limited to the following described:
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。  1, the disposable drug reservoir syringe which comprises a syringe body and disposed within the syringe body push rod A5, a syringe body comprises a sleeve provided at a distal end portion of the sleeve and the cone 2 a sleeve provided at the rear end of the grip portion of the finger A3, pharmaceutical cone at the outlet 2 is provided with the sealing agent outlet of the seal member 4, a pushing rod inserted into the sleeve interior A5 from a rear end of the sleeve, the push-pull rod A5 the inner wall and the outer wall of the sleeve with a close fit, push-pull rod A5 sleeve with a good seal, the internal push rod A5 provided with an axial through-hole 6, the axial through-hole 6 is provided with a push rod B7, B7 push-pull rod axial through hole 6 from the rear end of push rod inserted A5 interior, push rod and the outer wall of the axial through hole 6 hole wall B7 closely with the push rod B7 and axial through hole 6 good sealing, axial through hole 6 the front end of the axial through hole with a sealing slide valve 6 of 8, push-pull rod A5 rear end is provided with a finger grip portion B9, B7 push rod tip, push rod and the slide valve A5 8 form a sealed chamber A10, push-pull rod A5 front of the slide valve 8 and the syringe body form a sealed chamber B11.
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。  conjunction with Figure 1, shown in Figure 2, the valve slide 8 comprises a cylindrical guide post 15 and the bit position provided to the guide post 15 of the front end of the seal cap 16, the guide post 15 disposed on the bit axial through hole 6 after the seal cap 16 at the sealing surface of the distal end of the push rod A5, and the outer lead-bit column 15 axial through hole 6 of tight junctions, bit guide column 15 of the outer wall 17 is provided with axial grooves.
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。  shown in Figure 1, the seal member 4 is cylindrical threaded connection 18 and threaded through the threaded connection 18 is connected with the screw cap seal 19, threaded connection 18 fixed on the front end surface of the sleeve 1 set on the first and second external tapered inner surface of the threaded interface 18 is provided with a connecting thread, screw cap outer circumferential surface 19 is provided with a connecting thread, said cone 2 to 6% luer taper, internal screw cap 19 is provided for receiving the tapered conical cavity 2, the shape and size of the tapered cone shape and size of the cavity 2 is fitted, screw cap 19 is conical cavities with cone 2 to fit snugly, screw cap the formation of the cone sealing agent outlet 2 after 19 Nipple 18 thread sealing connection. 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。 2 cone 6% luer taper to facilitate the existing general injection needle used in conjunction. 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 connection 18 and screw cap 19 is designed both in the threaded connection through the sealing agent outlet 6% luer taper, but also facilitate the passage of the threaded screw cap 19, the appropriate size of the needle attached to the Luer cone 6% injection fitting. 结构简单，密封性能好，且操作方便，通用性强。 Simple structure, good sealing performance, and ease of operation, versatility.
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。 A finger grip portion A3  The sleeve 1 is protruding from the outer surface of the sheet-like finger rest A, B9 of the finger grip portion protruding from the outer surface of the push rod holder A5 sheet refers to B .
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  The fetch unit B9 also includes a sheet tray B refers to the front side, provided on the outer surface of the push rod A5 fingers gave way groove 12.
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。  The rear end of the push rod has B7 push handle 13, the rear end face of the push-pull rod are disposed A5 and push handle 13 with a recess 14.
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。 Sealed chamber  A10 is preloaded with the agent A, the airtight chamber B11 preloaded with agent B.
[0031 ]所述的药剂A为液体或粉体，药剂B为液体或粉体。  wherein A is a liquid or powder drug, a liquid or powder medicament B.
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。  When the push-pull rod B7 completely pushed into push-pull rod A5 axial through holes 6, the rear end face 13 of the push handle with finger grip portion of the rear end face flush B9, B7 push rod distal end surface of the push rod A5 the front end face flush.
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，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，  the working process of the present invention are as follows: First, the hand hold on the finger grip portion B9, push down the push rod B7, by pushing the agent A slide valve slide 8 down after seal cap 16 and the push rod of the A5 the front end face separation unsealed so that the closed chamber A10 and B11 sealed chamber and communicating through the axial grooves 17, agents from the axial groove A 17 flows into the sealed chamber B11, and pharmaceutical mixed B, this procedure push rod relative A5 in the syringe body is fixed and will not produce displacement, and thus will not put pressure on the cone seal 2, 4; at the same time when the remaining storage capacity of the agent a is greater than the volume of the closed chamber B11 can lower pushing the lever upward B7 mention push rod A5, thereby allowing all pharmaceutical a smooth entry into the enclosed chamber B11, B11 and therefore the volume of the closed chamber of the present invention is that it can be adjusted at any time, and the adjustment process will not be the same cone seal 2 4 create pressure; when the push handle push-pull rod B7 13 push-pull rod falls entirely within the groove A5 14 a drug is completely discharged into the sealed chamber B11, until thoroughly mixed and pharmaceutical agent a B, the hand-held syringe body so that the cone head 2 slightly upward, then unscrew the screw cap 19, a screw cap 19 from the cone 2, take the right size needle Fastening on the cone 2, according to the conventional method of injection injection, injection, holding a finger grip portion A3, A5 and push down the push rod push rod flush with the end of the B7, B7 pushing the push rod injection, seal cap 16 when the slide valve 8 comes into contact with the syringe body, continue to promote the push rod B7, slide valve 8 the guide post 15 bits recovered axial through hole 6, when the push rod distal end surface B7 close contact with the rear end face 16 of the sealing cap, the
完成注射ο Completion of the injection ο
|Cited Patent||Filing date||Publication date||Applicant||Title|
|CN101439211A *||24 Nov 2008||27 May 2009||亨克-萨斯,沃尔夫有限公司||Syringe|
|CN202844259U *||30 Oct 2012||3 Apr 2013||无锡耐思生物科技有限公司||Injection mixing pre-filling and pre-sealing injector|
|CN203663178U *||20 Jan 2014||25 Jun 2014||江西科伦医疗器械制造有限公司||Disposable medicament storage injector|
|US6149628 *||28 Jun 1999||21 Nov 2000||Szapiro; Jaime Luis||Syringe with two variable volume chambers for containing and administering mixtures of products provided separately|
|23 Apr 2014||C06||Publication|
|21 May 2014||C10||Entry into substantive examination|
|6 Apr 2016||C14||Grant of patent or utility model|