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Número de publicaciónCN102961803 A
Tipo de publicaciónSolicitud
Número de solicitudCN 201210421699
Fecha de publicación13 Mar 2013
Fecha de presentación30 Oct 2012
Fecha de prioridad30 Oct 2012
También publicado comoCN102961803B
Número de publicación201210421699.X, CN 102961803 A, CN 102961803A, CN 201210421699, CN-A-102961803, CN102961803 A, CN102961803A, CN201210421699, CN201210421699.X
Inventores许东良
Solicitante无锡耐思生物科技有限公司
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos:  SIPO, Espacenet
Disposable prefilled syringe
CN 102961803 A
Resumen
The invention provides a disposable prefilled syringe which makes ensure liquid medicine is mixed uniformly and is not polluted. The disposable prefilled syringe comprises a mandrel and an outer cover; the mandrel is sleeved in an inner hole of the outer cover; the front end of the mandrel is sleeved with a piston head; the front end of the outer cover is provided with a vent hole; the liquid medicine is loaded between the piston head and the vent hole; the disposable prefilled syringe is characterized in that the vent hole is wrapped in a conical structure which is closed outwards; the vent hole is a conical hole which is flared outwards; the front end of the outer cover is also provided with an internal thread connecting end; the internal thread connecting end is sleeved outside the conical structure; an installation cavity is formed between the internal thread of the internal thread connecting end and the outer conical surface of the conical structure; a spiral cap is in threaded connection with the internal thread on the internal thread connecting end through an external thread of the spiral cap, and is stuffed in the installation cavity; and a through hole is arranged in the center of the central wall of the spiral cap.
Reclamaciones(2)  traducido del chino
1. 一次性使用预灌封注射器,其包括芯杆、外套,所述芯杆套装于所述外套的内孔内,所述芯杆的前端部套装有活塞头,所述外套的前端部设置有通气孔,所述活塞头和所述通气孔之间装有药水,其特征在于:所述通气孔被包裹于向外收口的圆锥结构内,所述通气孔为向外扩口圆锥孔,所述外套的前端部还设置有内螺纹连接端,所述内螺纹连接端套装于所述圆锥结构外部,所述内螺纹连接端的内螺纹和所述圆锥结构的外圆锥面间形成安装空腔,螺旋帽通过其外螺纹螺纹连接所述内螺纹连接端的内螺纹、并塞装于所述安装空腔内,所述螺旋帽的中心壁的中心设置有通孔,塞子的顶部圆柱贯穿所述螺旋帽的中心壁,所述顶部圆柱的顶部设置有密封环,塞子的尾部通过压盖紧固于所述螺旋帽的尾部紧固空腔内,所述顶部圆柱塞装于所述通气孔内,所述顶部圆柱的密封环和所述通气孔过盈配合。 1. disposable pre-filled syringe, comprising a core rod, coat, suit the mandrel to the inner bore of the housing, the front end portion of the mandrel suit a piston head, the front end portion of the jacket provided There are vent holes, fitted between the piston head and syrup said orifice, characterized in that: the vent hole is wrapped in the conical structure shut out of the vent holes to extend outwardly opening tapered bore, the front end portion of the housing is further provided with an internal thread connection end, said inner threaded end of said conical outer configuration package, between the outer surface of the conical inner end and a threaded screw connection structure is formed of said conical mounting cavity , internally threaded outer screw cap by screwing the threaded end of the threaded connection, and plug mounted to the mounting cavity, the center wall of the center of the screw cap is provided with a through hole through the plug at the top of the cylinder central wall screw cap, the top of the cylinder is provided with a top seal ring, the tail plug secured to said gland via the tail fastening screw cap cavity, said cylinder plug mounted in the top inner venthole , said top cylinder sealing ring and the vent interference fit.
2.根据权利要求I所述的一次性使用预灌封注射器,其特征在于:所述通气孔的靠近所述芯杆的一端为圆柱孔、远离所述芯杆的一端为向外扩口圆锥孔。 2. I said disposable pre-filled syringe as claimed in claim wherein: said vent hole near one end of the mandrel is a cylindrical bore, remote from said one end of the stem is outwardly flared conical hole.
Descripción  traducido del chino

一次性使用预灌封注射器 Disposable pre-filled syringe

技术领域 Technical Field

[0001] 本发明涉及注射器结构的技术领域,具体为一次性使用预灌封注射器。 [0001] The present invention relates to the technical field of syringe structure specifically for a single use pre-filled syringe.

背景技术 Background

[0002] 预灌封注射器是九十年代开发的一种药品包装形式,经过多年的推广使用,对于预防传染病的传播和医疗事业的发展,起到了很好的作用。 [0002] The pre-filled syringe is the nineties developed a drug packaging, after years of promoting the use, for the prevention of the spread of infectious diseases and the development of the medical profession, played a very good role. 预灌封注射器主要用于高档药物的包装储存并直接用于注射或用于眼科、耳科、骨科等手术冲洗。 Prefilled syringe mainly used for packaging, storage and high-end drug injection or directly used for ophthalmology, ear, orthopedic and other surgical flushing. 预灌装注射器避免了:因用错药而导致医疗事故的发生,直至危害到患者的生命安全。 Prefilled syringes to avoid: using the wrong medicine because medical accidents caused until endanger the lives and safety of patients.

[0003] 现有的预灌装注射器有一些不足:预灌装注射器(不带针)外套前端有一小孔,小孔前端被螺旋塞的胶帽堵住,该注射器在灌装药物后,药物也充满小孔,医护人员在使用前通常要甩动几下,让药水再次混合均匀,因小孔太细小,小孔内的药水很难参与混合;预灌装注射器(带针)其针孔更细小,针孔内的药水更难参与再次混合,还有针管插在前端的胶帽内很容易掉胶屑在药水里。 [0003] The conventional prefilled syringe has some drawbacks: prefilled syringe (without needle) tip with a hole housing, the front end hole is blocked screw top plastic cap after filling the syringe in the drug, the drug is full of holes, the medical staff before using typically swinging a few times, let the syrup mix again, because the hole is too small, difficult to participate inside the hole potion mixing; prefilled syringe (with needle) which pinhole finer, more difficult to participate in the pinhole syrup mixed again, and the needle is inserted in front of the rubber cap is easy to fall in rubber crumbs in syrup.

发明内容 DISCLOSURE

[0004] 针对上述问题,本发明提供了一次性使用预灌封注射器,其确保药水混合均匀,且不会发生污染现象。 [0004] In response to these problems, the present invention provides a single use pre-filled syringe, which ensures potion mixing and contamination does not occur.

[0005] 一次性使用预灌封注射器,其技术方案是这样的:其包括芯杆、外套,所述芯杆套装于所述外套的内孔内,所述芯杆的前端部套装有活塞头,所述外套的前端部设置有通气孔,所述活塞头和所述通气孔之间装有药水,其特征在于:所述通气孔被包裹于向外收口的圆锥结构内,所述通气孔为向外扩口圆锥孔,所述外套的前端部还设置有内螺纹连接端,所述内螺纹连接端套装于所述圆锥结构外部,所述内螺纹连接端的内螺纹和所述圆锥结构的外圆锥面间形成安装空腔,螺旋帽通过其外螺纹螺纹连接所述内螺纹连接端的内螺纹、并塞装于所述安装空腔内,所述螺旋帽的中心壁的中心设置有通孔,塞子的顶部圆柱贯穿所述螺旋帽的中心壁,所述顶部圆柱的顶部设置有密封环,塞子的尾部通过压盖紧固于所述螺旋帽的尾部紧固空腔内,所述顶部圆柱塞装于所述通气孔内,所述顶部圆柱的密封环和所述通气孔过盈配合。 [0005] The single-use pre-filled syringe, the technical proposal is this: which includes core rod, coat the mandrel suit jacket in the inner hole of the front end portion of the mandrel suit a piston head , the front end portion of the jacket is provided with a vent hole, syrup containing between said orifice and said piston head, characterized in that: said vent shut wrapped within outer conical structure, said vent hole outwardly flared conical hole, the front end portion of the jacket also provided with an internal thread connection end, said inner threaded end suits to the conical external structure, internal thread threaded end of said inner and said conical structure between the outer conical surface forms a mounting cavity, a screw cap with an outer screw thread connecting the inner end of the threaded screw connection and plug mounted to the mounting cavity, the center of the screw cap of the central wall is provided with a through hole , the top of the cylinder plug through the center of the screw cap wall, the top of the top of the cylinder is provided with a sealing ring, through the rear plug screw cap lid is secured to the tail of the fastener within the cavity, the cylindrical top plug mounted in said inner vent hole, said top cylinder sealing ring and the vent interference fit.

[0006] 其进一步特征在于:所述通气孔的靠近所述芯杆的一端为圆柱孔、远离所述芯杆的一端为向外扩口圆锥孔。 [0006] further characterized in that: said vent hole near one end of the mandrel is a cylindrical bore, remote from said one end of the stem is outwardly flared conical bore.

[0007] 使用本发明的结构后,塞子的尾部通过压盖紧固于所述螺旋帽的尾部紧固空腔内,从而使得塞子和螺旋帽连为一体,螺旋帽通过其外螺纹连接外套前端部的内螺纹连接端的同时,将塞子的顶部圆柱塞装于通气孔内,直至顶部圆柱的密封环和所述通气孔过盈配合,完成密封,由于通气孔可以足够大,其确保药水混合均匀,且不会发生污染现象。 [0007] After use the structure of the present invention, the tail plug through the gland secured to the rear of the fastening screw cap cavity, so that the stopper and a screw cap as a single entity, the front end outer screw cap is connected by its outer thread At the same time the inner end of the threaded portion of the connection, the top plug cylinder plug mounted in the vent hole until the top of the cylinder and the vent seal ring interference fit, complete sealing, since the vent holes can be large enough to ensure that their mixed solution and contamination does not occur.

附图说明 Brief Description

[0008] 图I为本发明的实施例一的主视图剖视结构示意图;图2为本发明的实施例二的通气孔的结构示意图。 [0008] The front view of a schematic cross-sectional configuration of Figure I embodiment of the present invention; Figure 2 Schematic diagram of the second embodiment of the present air vents carrying out the invention.

具体实施方式 DETAILED DESCRIPTION

[0009] 见图I、图2,其包括芯杆I、外套2,芯杆I套装于外套2的内孔3内,芯杆I的前端部套装有活塞头4,外套2的前端部设置有通气孔5,活塞头4和通气孔5之间装有药水,通气孔5被包裹于向外收口的圆锥结构6内,外套2的前端部还设置有内螺纹连接端7,内螺纹连接端7套装于圆锥结构6外部,内螺纹连接端7的内螺纹8和圆锥结构6的外圆锥面间形成安装空腔11,螺旋帽9通过其外螺纹10螺纹连接内螺纹连接端7的内螺纹8、并塞装于安装空腔11内,螺旋帽9的中心壁12的中心设置有通孔13,塞子14的顶部圆柱15贯穿螺旋帽9的中心壁12,顶部圆柱15的顶部设置有密封环16,塞子14的尾部通过压盖17紧固于螺旋帽9的尾部紧固空腔18内,顶部圆柱15塞装于通气孔5内,顶部圆柱15的密封环16和通气孔5过盈配合。 [0009] Figure I, Figure 2, which includes a core rod I, 2 coats, suits I core rod in the bore 2 of the housing 3, the distal end portion of the core rod I suit a piston head 4, the front end portion of the jacket 2 is provided There vent 5, mounted between the piston head 4 and 5 syrup vent, the vent hole 5 in the wrapped cuff outward conical structure 6, the front end portion of the housing 2 is also provided with an internal thread connection terminal 7, the threaded connection between the inner surface of the outer tapered threaded end 7 Set in a conical structure 6 external, internal threaded end 7 6 8 and conical structures forming installation cavity 11, 9 with an outer screw cap 10 threaded connection internal thread threaded end 7 thread 8, and the plug on the mounting cavity 11, center center wall 12 is provided with a screw cap (9) through holes 13, 14 of the top 15 through the cylindrical plug screw cap center wall 9 of 12, the top of the top of the cylinder 15 is provided with aft seal ring 16, the plug 14 through the cap 17 is fastened to the rear fastening screw cap within the cavity 18 9 15 plug over the top of the column in the vent hole 5, the top of the cylinder 15 and the seal ring 16 through the vent hole 5 interference fit.

[0010] 具体实施例一,见图I :通气孔5为向外扩口圆锥孔; 具体实施例二,见图2 :通气孔5的靠近芯杆I的一端为圆柱孔18、远离芯杆I的一端为向外扩口圆锥孔19。 [0010] A particular embodiment shown in Figure I: vent hole 5 is spread outwardly opening tapered bore; two specific examples, see Figure 2: I vent holes near the stem end of the cylindrical bore 18 5, away from the mandrel I end is outwardly flared conical bore 19.

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
CN1162269A *31 Oct 199515 Oct 1997阿斯特拉制药有限公司Plastic syringe with overcap
CN1176605A *21 Feb 199618 Mar 1998考陶尔德航空股份有限公司Combination closure and syringe
CN1422167A *28 Mar 20014 Jun 2003阿斯特拉曾尼卡英国有限公司Pre-filled syringe
CN202844253U *30 Oct 20123 Abr 2013无锡耐思生物科技有限公司Disposable pre-filled injector
US5135513 *21 Dic 19874 Ago 1992Medicorp Holding S.A.Connector for liquid transfer device
US6440101 *31 May 200027 Ago 2002Abbott LaboratoriesSyringe systems for lyophilized drugs and methods for making the same
US20040116858 *14 Oct 200317 Jun 2004Transcoject Gesellschaft Fur Medizinische Gerate Mbh & Co. KgTamper-evident closure for a syringe
Clasificaciones
Clasificación internacionalA61J1/05, A61M5/178
Eventos legales
FechaCódigoEventoDescripción
13 Mar 2013C06Publication
16 Oct 2013C10Entry into substantive examination
21 Ene 2015C14Grant of patent or utility model