CN103599577A - Needleless medication addition infusion positive pressure connector - Google Patents

Needleless medication addition infusion positive pressure connector Download PDF

Info

Publication number
CN103599577A
CN103599577A CN201310646442.9A CN201310646442A CN103599577A CN 103599577 A CN103599577 A CN 103599577A CN 201310646442 A CN201310646442 A CN 201310646442A CN 103599577 A CN103599577 A CN 103599577A
Authority
CN
China
Prior art keywords
hollow
plug
infusion
vertical section
dosing
Prior art date
Application number
CN201310646442.9A
Other languages
Chinese (zh)
Inventor
梁栋科
林森
李涛
朱小叶
邢宗江
何健
Original Assignee
上海康德莱企业发展集团医疗器械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海康德莱企业发展集团医疗器械有限公司 filed Critical 上海康德莱企业发展集团医疗器械有限公司
Priority to CN201310646442.9A priority Critical patent/CN103599577A/en
Publication of CN103599577A publication Critical patent/CN103599577A/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22Valves or arrangement of valves
    • A61M39/26Valves closing automatically on disconnecting the line and opening on reconnection thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/20Closure caps or plugs for connectors or open ends of tubes

Abstract

The invention discloses a needleless medication addition infusion positive pressure connector. The needleless medication addition infusion positive pressure connector comprises a shell, wherein the shell comprises a vertical segment and a horizontal segment which is arranged in the middle of the vertical segment and connected with the vertical segment. A hollow rubber plug is arranged inside the vertical segment, wherein a semi-rigid rubber plug inner core is fixed to the upper portion of the hollow rubber plug in an inserting connection mode, an interlayer which supports the rubber plug inner core is arranged in the middle of the hollow rubber plug, and the outer wall of the top of the hollow rubber plug and the inner wall of the upper portion of the vertical segment form a leakproof structure. The hollow rubber plug separates the vertical segment from the horizontal segment, and the bottom of the hollow rubber plug and the bottom of the vertical segment are fixed to each other through a hollow gasket located inside the shell. The needleless medication addition infusion positive pressure connector has the advantages that when an injection instrument is pulled out, the needleless medication addition infusion positive pressure connector can provide an enough amount of positive pressure, so that human blood is prevented from flowing back, residual quantity of liquid medicine in the needleless medication addition infusion positive pressure connector is reduced, waste of the liquid medicine is reduced, and the accuracy of dosages is guaranteed.

Description

一种无针加药输液正压接头 A non-positive joint infusion dosing needle

技术领域 FIELD

[0001] 本发明涉及医疗器械领域的一种无针加药输液正压接头。 [0001] relates to the field of medical devices present invention provides a positive-pressure infusion dosing needle fitting.

背景技术[0002] 无针加药输液正压接头主要用于医疗中注射药液、重力输液、液体抽取,可与静脉输液器,静脉导管等注射器械连接,无针加药输液正压接头可以避免由于针头穿刺可能对人体毛细血管带来的微粒、微屑的污染。 [0002] Dosing infusion needle for injecting pressurized liquid is mainly linker, gravity infusion, the medical liquid extraction, can be connected to the intravenous infusion, intravenous catheter injection device, dosing infusion needle pressure linker may avoid contaminated needles may puncture the human body caused by capillary particles, micro-chips. 当注射器械拔除时,无针加药输液正压接头产生一个正压,自动使静脉输液器,静脉导管等内的液体向前推进,可防止血液回流,避免形成血栓。 When the removal of the injection device, dosing infusion needle linker generates a positive pressure, automatic venous infusion, the liquid in the forward intravenous catheter to prevent backflow of blood, avoiding the formation of blood clots. 目前的无针加药输液正压接头存在的主要问题是:注射器械拔除时,无针加药输液正压接头提供的正压量不足,造成大量药液残留在无针加药输液正压接头内,引起了大量药液的浪费,并可影响用药剂量的准确性,耽误病人的治疗。 The main problem of the current needle-free dosing infusion positive-pressure connector is present: the removal of injection equipment, insufficient amount of positive-pressure needleless connector provides positive pressure infusion dosing, resulting in a lot of liquid left in the needle-free dosing infusion positive-pressure connector inside, causing a lot of waste liquid, and can affect the accuracy of the dosage, delayed treatment of patients. 同时,无针加药输液正压接头内部还存在金属结构,其在进行核磁共振检查时将影响检查结果的准确性。 Meanwhile, the internal pressure infusion dosing needle fitting further presence of a metal structure, which would affect the accuracy of test results during MRI.

发明内容 SUMMARY

[0003] 本发明的目的是为了克服现有技术的不足,提供一种无针加药输液正压接头,其在注射器械拔除时能提供更大的正压量,减少药液在无针加药输液正压接头内的残留量,减少药液的浪费,保证用药剂量的准确性。 [0003] The object of the present invention is to overcome the deficiencies of the prior art, there is provided a needleless connector dosing infusion pressure, it can provide a greater amount of pressure when the injection device removed, reducing the applied liquid needleless residues within the drug infusion pressure joint, reduce waste liquid, and to ensure the accuracy of the dose.

[0004] 实现上述目的的一种技术方案是:一种无针加药输液正压接头,包括外壳,所述外壳分为垂直段,以及在所述垂直段中部,与所述垂直段相接的水平段; [0004] The technical solution to achieve the above object is: A pressure infusion dosing needle fitting, comprising a housing divided into vertical sections, and in the middle of the vertical section, in contact with the vertical section the horizontal section;

[0005] 所述垂直段内设有中空胶塞,所述中空胶塞的上部插接固定有一个半刚性的胶塞内芯,所述中空胶塞的中部设有支撑所述胶塞内芯的隔层,所述中空胶塞顶部的外壁与所述垂直段上部的内壁之间形成密封结构;所述中空胶塞将所述垂直段与所述水平段隔断,所述中空胶塞的底部与所述垂直段的底部之间通过位于所述外壳内的中空垫片固定。 [0005] features a vertical section of the hollow plug, the upper plug of the hollow rubber plug is fixed to a semi-rigid inner core plug, said hollow plug is provided within the central core supporting the stopper the bottom of the hollow stopper section perpendicular to the horizontal section partition, the hollow rubber plug; a spacer, a sealing structure is formed between the outer wall between the top of the hollow upper portion of the stopper and the vertical section between the bottom of the vertical segment passing through said hollow gasket positioned within a stationary housing.

[0006] 进一步的,所述中空垫片包括与所述中空胶塞内壁底部插接固定的垫片本体,以及位于所述垫片本体底部的垫片凸缘,所述垫片凸缘的顶面与所述中空胶塞的底面固定,所述垫片凸缘的侧面紧贴所述垂直段的内壁,所述垂直段的底部设有径向向内凸出的支撑部件,支撑所述垫片凸缘的底面。 [0006] Further, the spacer comprises a hollow plug with the inner wall of the bottom of the hollow connector body fixed pad, and located at the bottom of the body of the spacer gasket flange, the top flange gasket surface of the bottom surface of the hollow rubber plug is fixed, the side surface of the gasket flange against the inner wall of the vertical section of the bottom section of the vertical support member is provided with a radially inwardly projecting, said support pad the bottom surface of the flange piece.

[0007] 再进一步的,所述垫片凸缘上设有减压缺口。 [0007] Still further, the notch is provided on the spacer flange under reduced pressure.

[0008] 再进一步的,所述中空胶塞的中部设有位于所述中空胶塞外壁上的胶塞凸缘,所述胶塞凸缘紧贴所述垂直段的内壁,并将所述垂直段与所述水平段隔断。 [0008] Still further, the middle of the hollow rubber plug is provided, stopper flange against the inner wall of the vertical section located in said outer wall of the hollow rubber plug stopper flange, and the vertical blocking segment and the horizontal segment.

[0009] 进一步的,所述胶塞内芯包括与所述中空胶塞内壁插接固定的内芯本体以及与位于所述内芯本体顶部的内芯凸缘,所述内芯凸缘的底面与所述中空胶塞的顶面固定。 [0009] Further, the plug core comprises an inner wall of the hollow rubber plug connector body and a fixed inner core and a core located within the top flange bottom surface of the body of the inner core, the inner core flanges and fixing the hollow rubber plug top surface.

[0010] 再进一步的,所述胶塞内芯的顶面的中心设有进液口。 [0010] Still further, the center of the top surface of the inner core is provided with the plug inlet port.

[0011] 进一步的,所述垂直段上部的外壁上套接有旋紧盖。 [0011] Further, the upper portion of the outer wall of the vertical section is mounted a screwed lid.

[0012] 进一步的,所述水平段的外壁上套接有螺口,所述螺口与所述水平段的径向之间套接内螺护帽。 [0012] Further, an outer wall of said socket section has a horizontal screw, the screw radially inner socket port and the period between horizontal retaining screw cap. [0013] 进一步的,所述外壳和所述中空垫片均是透明的。 [0013] Further, the housing and the hollow gasket are transparent.

[0014] 再进一步的,所述外壳和所述中空垫片均由医用聚碳酸酯制成,所述胶塞内芯由医用聚甲醛制成,所述中空胶塞由医用硅胶制成。 [0014] Still further, the housing and the spacer by a medical hollow polycarbonate, the inner core is made of medical rubber plug polyoxymethylene, said hollow stopper made of medical grade silicone.

[0015] 采用了本发明的一种无针加药输液正压接头的技术方案,即在外壳的垂直段内设置中空胶塞,中空胶塞的上部插接固定有一个半刚性的胶塞内芯,中空胶塞的中部设有支撑胶塞内芯的隔层,中空胶塞顶部的外壁与垂直段上部的内壁之间形成密封结构,中空胶塞将外壳的垂直段与外壳的水平段隔断,中空胶塞的底部与外壳的垂直段的底部之间通过一个位于外壳内的中空垫片固定的技术方案。 [0015] The present invention is a needleless pressure infusion dosing joint technical solution, i.e. is provided within a semi-rigid hollow upper stopper plug, plug the hollow plug is fixed in the vertical section of the housing forming a seal structure, the horizontal section of the hollow stopper section of the housing perpendicular to the partition between the compartment of the housing, between the outer wall of the hollow upper portion of the top of the stopper and the vertical section, the central core of the hollow plug is provided with a core support plug fixed technical solution a hollow gasket positioned within the housing between the bottom of the vertical section of the bottom of the housing of the hollow stopper. 其技术效果是:在注射器械拔除时,其能提供足够的正压量,防止人体血液的返流,减少药液在无针加药输液正压接头内的残留量,减少药液的浪费,保证用药剂量的准确性。 Technical effect: removal of the injection device, it can provide a sufficient amount of pressure to prevent regurgitation of blood, to reduce the amount of liquid remaining in the dosing needle infusion pressure joints, reduce waste of liquid, ensure the accuracy of medication dose.

附图说明 BRIEF DESCRIPTION

[0016] 图1为本发明的一种无针加药输液正压接头的右视图。 A non-needle [0016] FIG. 1 is a right side view of the present invention, positive pressure infusion dosing linker.

[0017] 图2为本发明的一种无针加药输液正压接头的AA面剖视图。 A non-needle [0017] FIG. 2 of the present invention, positive pressure infusion dosing joint plane AA cross-sectional view.

[0018] 图3为本发明的一种无针加药输液正压接头中的中空垫片的俯视图。 A plan view of a pad hollow needle [0018] FIG. 3 is an infusion dosing pressure joint.

[0019] 图4为本发明的一种无针加药输液正压接头在输液状态下的AA面剖视图。 A non-needle [0019] FIG. 4 of the present invention, the dosing infusion in the infusion pressure joint plane AA cross-sectional view of a state.

具体实施方式 Detailed ways

[0020] 请参阅图1至图4,本发明的发明人为了能更好地对本发明的技术方案进行理解,下面通过具体地实施例,并结合附图进行详细地说明: [0020] Please refer to FIG. 1 to FIG. 4, the inventors of the present invention in order to better understand the technical solutions of the present invention, will be described in detail by way of particular embodiments and the drawings in conjunction with:

[0021] 请参阅图1至图4,本发明的一种无针加药输液正压接头,包括外壳1,外壳I具有三通管的结构,即外壳I分为两端开口的垂直段11,以及在垂直段I的中部,与垂直段11相接的水平段12。 [0021] Please refer to FIG. 1 to FIG. 4, the present invention is one kind of dosing infusion needle pressure fitting comprises a housing 1, having the structure I tee housing, i.e. the housing is divided into vertical segments I open at both ends 11 and a central vertical section I, the vertical segment 11 in contact with the horizontal section 12. 水平段12的径向中心形成药液流出无针加药输液正压接头的出液口121。 The radial center of the horizontal section 12 of the liquid effluent formed dosing infusion needle pressure outlet port 121 of the joint.

[0022] 垂直段11内设有一个中空胶塞2,中空胶塞2的上部插接固定有一个半刚性的胶塞内芯3,胶塞内芯3的刚度必须大于中空胶塞2的刚度。 [0022] 11 features a vertical section of the hollow plug 2, the upper portion of the hollow connector plug 2 is fixed to the inner plug of a semi-rigid core 3, the stiffness of the core plug 3 must be greater than the stiffness of the hollow plug 2 . 中空胶塞2的中部,设有位于中空胶塞2内部,用于支撑胶塞内芯3的隔层21。 Central plug 2 is hollow, is provided inside the hollow plug 2 is located, the support for the spacer plug 21 within the die 3. 中空胶塞2的上部相当于具有半刚性结构,在受力后基本不变形。 2 corresponds to the upper portion of the hollow stopper having a semi-rigid structure, does not substantially deformed by the force.

[0023] 同时,垂直段11上部即垂直段11中高于水平段12部分,垂直段11下部即垂直段11中低于水平段12部分。 [0023] Meanwhile, i.e., an upper vertical section 11 vertical section 11 of the portion 12 above the horizontal section, i.e. a lower vertical section 11 vertical section 11 below the horizontal leg portion 12. 为了使无针加药输液正压接头能够承受一定的人体血液压力而不泄漏;为了将无针加药输液正压接头内的空间与外部空间隔断,从而防止外界空气和细菌的污染;为了能在输液过程中,提供将药液挤出水平段12的挤压力,还为了在注射器械7拔除时,使无针加药输液正压接头内产生足够的正压量,中空胶塞2顶部的外壁与垂直段11上部的内壁之间必须形成密封结构。 In order to make a positive pressure infusion dosing needle fitting able to bear without leakage of blood pressure; To the space within the needle fitting dosing infusion pressure and an external space partition, and outside air to prevent bacterial contamination; order during the infusion, provided the pressing force liquid out of the horizontal section 12, but also when the injection device 7 for removal of the needle to produce a sufficient amount of positive pressure within the dosing infusion joint, the top of the hollow plug 2 necessary to form the sealing structure between the inner wall and the outer wall 11 of the upper vertical segment.

[0024] 本实施例中,中空胶塞2的顶部,设有位于中空胶塞2外壁上的,轴向长度为0.5~Imm的上凸缘23,上凸缘23紧贴垂直段11上部的内壁,从而使中空胶塞2顶部的外壁与垂直段11上部的内壁之间形成了密封结构。 [0024] In this embodiment, the top plug 2 is hollow, is provided on the outer wall of the hollow stopper 2, the axial length of 0.5 to Imm upper flange 23, the flange 23 against the upper vertical segment 11 an inner wall, so that the hollow plug is formed sealing structure between the outer wall of the top of the inner wall 2 and the upper vertical section 11. 必须说明的是,中空胶塞2上部的外壁与垂直段11上部的内壁之间形成密封结构并不局限于设置上凸缘23这一种方式,上凸缘23的轴向长度也不局限于0.5~1mm。 It must be noted that the sealing structure is formed between the inner wall 11 of the outer wall of the hollow upper portion of the upper stopper 2 is not limited to the vertical section 23 which is provided on the way of the flange, the axial length of the flange 23 is not limited to the 0.5 ~ 1mm.

[0025] 同时,中空胶塞2的外壁将垂直段11与水平段12隔断,使中空胶塞2与水平段12之间也形成密封结构。 [0025] Meanwhile, the outer wall 2 of the hollow rubber plug 11 and the horizontal section of the vertical section 12, exposing the hollow plug 2 is also formed between the sealing structure 12 and the horizontal section.

[0026] 中空胶塞2下部的外壁与垂直段11下部的内壁之间留有间隙。 [0026] The clearance between the inner lower portion of the outer wall 2 of the hollow rubber plug and a lower vertical segment 11. 该间隙的作用在于:在注射器械7从垂直段11的顶部插入时,为中空胶塞2下部的高弹压缩形变提供足够空间。 The effect of the gap is that: when the injection device 7 is inserted vertically from the top section 11 to provide adequate space for the compression set high elasticity of the lower portion 2 of the hollow stopper.

[0027] 中空胶塞2的底部设有一个位于外壳I内的中空垫片4。 The bottom of the [0027] hollow plug 2 is provided with a hollow gasket positioned within the housing I 4. 将垂直段11的底部与中空胶塞2的底部固定。 The bottom fixing section 11 is perpendicular to the bottom 2 of the hollow stopper.

[0028] 注射器械7的圆锥接口71从垂直段11的顶部插入无针加药输液正压接头后,注射器械7将力作用于胶塞内芯3上,胶塞内芯3将力传导到中空胶塞2上。 After conical Interface [0028] 71 of the injection device 7 is inserted into the dosing needle infusion pressure fitting at the top of the vertical section 11, the force to the injection device 7 inside the core plug 3, the stopper a force transmitted to the core 3 2 hollow plug. 中空胶塞2和胶塞内芯3整体下移,中空胶塞2的上部,即隔层21以上的部分,基本不变形。 The hollow plug 2 and the core plug 3 shifted downward, the upper plug 2 is hollow, i.e. above the spacer part 21, substantially no deformation. 中空胶塞2的下部,即隔层21以下的部分,发生高弹压缩形变,相当于起到了一个弹簧的作用。 A lower hollow plug 2, i.e. below the spacer layer 21, the occurrence of high-elastic compression set, is equivalent to a spring action played. [0029] 随着中空胶塞2的下部,发生高弹性压缩形变,中空胶塞2的上部的外壁与垂直段11的内壁之间形成的间隙用于存储药液。 [0029] As the lower portion 2 of the hollow plugs, the occurrence of a high elastic compression gap formed between the inner wall of the hollow upper portion of the deformation of the outer wall 2 of the stopper of the vertical section 11 for storing liquid. 同时,垂直段11与水平段12之间连通。 Meanwhile, the communication between the vertical segment 12 and horizontal segment 11. 药液从胶塞内芯3顶面上的进液口33溢出,顺着垂直段11内壁上的三条均匀分布的溢流槽(图2和图4中未显示),充满中空胶塞2上部的外壁与垂直段11内壁之间的间隙中。 Overflowing from the inlet port 333 on the top surface of the core plug, on the inner wall along three vertical segments 11 uniformly distributed overflow tank (not shown in FIG. 2 and FIG. 4), filled with hollow upper stopper 2 the gap between the outer and inner walls 11 in vertical section. 接着,药液沿着水平段12流出无针加药输液正压接头。 Next, liquid effluent pressure infusion dosing needle fitting 12 in the horizontal section. 无针加药输液正压接头处于注射状态。 Dosing infusion needle fitting is in pressure injection conditions.

[0030] 当拔除注射器械7后,中空胶塞2的下部的高弹压缩形变复原,中空胶塞2的外壁将垂直段11与水平段12之间重新隔断。 [0030] When the removal of the injection device 7, the lower portion 2 of the hollow stopper a high elastic compression strain recovery, the outer wall of the hollow rubber plug 2 will be re-blocking between 12 and 11 and the horizontal section of the vertical section. 该过程中,由于中空胶塞2高弹压缩形变复原,无针加药输液正压接头内产生一个足够大正压量,自动使药液沿着水平段12向前推进,防止血液回流进入水平段12,避免形成血栓。 In this process, since the hollow plug 2 compression set high elastic recovery, generating a sufficiently large amount of positive pressure within the dosing needle infusion pressure joint, automatically so that the liquid propelled along a horizontal forward section 12, to prevent backflow into the blood levels of section 12, to avoid thrombus formation.

[0031] 通过上述的设计,在注射器械7拔除时,无针加药输液正压接头能提供足够大的正压量,防止血液回流进入水平段12,避免形成血栓,并减少药液在无针加药输液正压接头内的残留量,减少药液的浪费,保证用药剂量的准确性。 [0031] By the above design, when the removal of the injection device 7, pressure infusion dosing needle fitting provides sufficient amount of pressure to prevent backflow of blood into the horizontal section 12, to avoid thrombus formation and reduce the liquid in the absence of residues within the needle fitting dosing infusion pressure, reduce waste liquid, and to ensure the accuracy of the dose.

[0032] 本实施例中,中空垫片4包括与中空胶塞2底部内壁插接固定的垫片本体41,以及位于垫片本体41底部的垫片凸缘42,垫片凸缘42的顶面与中空胶塞2的底面固定,垫片凸缘42的侧面紧贴垂直段11的内壁,形成密封结构,垂直段11的底部设有径向向内凸出的支撑部件111,支撑垫片凸缘42的底面,从而便于中空垫片4在外壳I内的定位。 [0032] In this embodiment, the spacer 4 comprises a hollow plug 2 with the hollow inner bottom wall of the plug body 41 is fixed to the spacer, and the spacer is located at the bottom of the body 41 of the spacer flange 42, a top flange 42 of the spacer surface of the bottom surface 2 of the hollow rubber plug is fixed, the side surface of the gasket 42 against the inner wall of the flange 11 of the vertical section to form a sealed structure, perpendicular to the bottom section 11 is provided with a radially inwardly projecting support member 111, support washer the bottom surface of flange 42, thereby facilitating the hollow spacer 4 is positioned within the housing I. 这样设计的目的在于增加中空垫片4与垂直段11底部的接触面积,分散受力,防止垂直段11在使用过程中开裂。 The purpose of this design is to increase the contact area of ​​the hollow 4 and the bottom of the vertical gasket segment 11, dispersion forces, to prevent cracking of the vertical section 11 during use. 中空垫片4,即中空垫片4的径向中心设有贯通孔43,其作用在于:减少中空胶塞2下部在高弹压缩形变中受到的阻力。 Hollow pad 4, i.e. a hollow center pad 4 is provided with radial through holes 43 that act to: reduce the hollow plug 2 are subjected to lower compressive deformation resistance at high elasticity.

[0033] 为了进一步减少中空胶塞2下部在高弹压缩形变中受到的阻力,中空垫片4的垫片凸缘42上设有一个位于垫片凸缘42径向边缘上的减压缺口421。 [0033] To further reduce the hollow plug 2 in a lower resistance to compression deformation by the high-elastic, hollow gasket flange gasket 4 is provided with a notch located on the pressure pad 42 of the flange 42 on the radial edge 421 . 在中空胶塞2的下部发生高弹压缩形变时,位于中空胶塞2下部的外壁与垂直段11下部的内壁之间的间隙中的空气可通过减压缺口421排出。 When the lower portion of the hollow plug 2 generating high elastic compression deformation, the gap between the lower portion of the inner wall 11 of the hollow plug 2 with the outer wall of the lower portion of the vertical section of the air gap 421 may be reduced by discharging. 中空胶塞2的下部完成高弹压缩形变后,中空胶塞2下部的外壁与垂直段11下部的内壁之间形成密封结构,因而药液不会从垂直段11底部滴漏。 The lower part of the hollow rubber plug 2 is completed after the high elastic compression set, sealing structure is formed between the lower portion of the inner wall 11 of the outer wall of the hollow rubber plug and a lower vertical segment 2, and thus liquid will not drip from the bottom of the vertical section 11.

[0034] 本实施例中,中空胶塞2的中部设有位于中空胶塞2外壁上的胶塞凸缘22,胶塞凸缘22的目的在于:在无针加药输液正压接头与人体相连而未注射变形时,胶塞凸缘22与垂直段11的内壁形成密封件结构,使无针加药输液正压接头能够承受一定的人体血液压力而不泄漏;同时,防止外界空气和细菌进入而造成污染。 [0034] In this embodiment, the central positioned hollow plug 2 is provided on the outer wall 2 of the hollow rubber plug stopper flange 22, the stopper flange 22 aims: dosing the infusion needle body pressure linker when connecting the injection without modification, stopper flange 22 form a seal with the inner wall structure of the vertical section 11, so that a positive pressure infusion dosing needle fitting able to bear without leakage of blood pressure; same time, to prevent external air and bacteria enter and cause pollution.

[0035] 本实施例中,胶塞内芯3包括与中空胶塞2内壁插接固定的内芯本体31以及与位于内芯本体31顶部的内芯凸缘32,内芯凸缘32的底面与中空胶塞2的顶面固定。 Embodiment, the inner wall 3 of the hollow plug including a plug flange 31 and an inner core of the fixed inner core positioned within the core body and the top 31 of the body 32, the bottom surface of the inner flange of the core [0035] The inner core 32 of the present embodiment of the plug fixed with the top surface of the hollow plug 2. 这样设计的目的在于:保证中空胶塞2的上部不发生高弹压缩形变,同时保证在无针加药输液正压接头处于输液状态下时,中空胶塞2上部的外壁与垂直段11的内壁之间能形成间隙,使药液能够顺利通过水平段12流出无针加药输液正压接头。 The purpose of this design is that: an upper hollow plug 2 to ensure a high compression elastic deformation does not occur, while ensuring that the next dosing infusion needle the infusion pressure fitting is in an inner wall, an outer wall of the hollow upper portion of the plug 2 with the vertical segment 11 a gap is formed between the can, so that the liquid smoothly flows through the horizontal section 12 a needleless connector dosing infusion pressure.

[0036] 同时,胶塞内芯3的顶面的中心设有进液口33,注射器械7里的药液正是通过进液口33,再从在垂直段11内壁上均匀分布的三条溢流槽溢出,充满中空胶塞2上部的外壁与垂直段11内壁之间的间隙中,沿着水平段12流出无针加药输液正压接头。 [0036] Meanwhile, the center of the top surface of the core plug 3 is provided with a liquid inlet 33, in the liquid injection device 7 is 33, then three overflow from the inner wall of the vertical section 11 uniformly distributed through the inlet port the gap between the overflow gutter, the upper portion of the hollow stopper 2 is filled with the inner wall of the vertical section of the outer wall 11, the outflow pressure infusion dosing needle joint 12 in the horizontal section.

[0037] 本实施例中,水平段12的外壁上套接有螺口61,螺口61与水平段12的径向之间套接内螺护帽62,用于保护出液口121不受外界空气中灰尘和细菌的污染。 [0037] In this embodiment, the outer wall of the socket 12 of the horizontal section 61 with a screw, the socket screw 61 and the radial segment 12 of the horizontal screw between the protective cap 62 to protect the port 121 from the liquid outside air and dust bacterial contamination.

[0038] 同时,垂直段11上部的外壁上套接有旋紧盖5,旋紧盖5通过位于垂直段11顶部外壁上的外螺纹112固定。 [0038] Meanwhile, the upper portion 11 of the outer wall is mounted a vertical section 5 is fixed by the external thread 11 located on the top of the outer wall of the vertical section 112 of the cover 5 screwed, tighten cap. 旋紧盖5的作用在于:作为无针加药输液正压接头进液端的保护帽,很好地防止了进液端的中空胶塞2,以及胶塞内芯3顶面暴露在外,被外界空气中灰尘和细菌的污染的可能,这是目前其它无针加药输液正压接头所没有的。 5 is that the effect of tightening the cap: a positive-pressure infusion dosing needle protective cap fluid inlet fitting end, in the hollow of the well prevent the liquid end of plugs 2, 3 and the inner surface of the plug exposed core, the outside air is bacterial contamination and dust may be, which is another positive-pressure infusion dosing needle does not have joints. 外螺纹112的另外一个作用在于:在注射器械7的圆锥接口71插入垂直段11的顶部后,将注射器械7固定,如图4所示。 Another effect is that the external thread 112: After inserting the top of the vertical section 11 of the interface 71 in the conical injection device 7, the injection device 7 is fixed, as shown in FIG. [0039] 外壳I和中空垫片4由透明塑料制成,无针加药输液正压接头的中空胶塞2的高弹压缩形变都是可视的,药液在无针加药输液正压接头内的流动也是可视的,无针加药输液接头内是否被药液完全冲洗,或者是否发生血液的回流也都是可视的,优于现有技术的同类产品。 [0039] I and a hollow housing gasket 4 made of a transparent plastic, hollow plug dosing infusion needle high pressure fitting elastic compression set 2 are visible, needle-free liquid at a positive pressure infusion dosing flow within the joint is visible, whether the processing solution is completely dosing the infusion needle linker, or whether the blood return occurs are also visible, over the prior art similar products.

[0040] 同时,为了实现中空胶塞2的高弹压缩形变,中空胶塞2是由医用硅胶制成的。 [0040] Meanwhile, in order to achieve a high elastic hollow stopper 2 compression set, hollow plug 2 it is made of medical grade silicone. 胶塞内芯3和中空垫片4的刚度要大于中空胶塞2的刚度,因此胶塞内芯3的材料优选医用聚甲醛,是不透明的,中空垫片4、外壳1,螺口61的材料优选医用聚碳酸酯,是透明的。 Stiffness of the core plug 3 and a hollow gasket 4 is greater than the stiffness of the hollow rubber plug 2, and thus the plug of the core material is preferably medical polyoxymethylene 3, is opaque, a hollow gasket 4, the housing 1, the screw 61 the medical material is preferably polycarbonate is transparent. 内螺护帽62的材料优选医用聚丙烯,旋紧盖5的材料优选医用聚乙烯,都是不透明的。 The protective cap 62 is screwed material is preferably medical grade polypropylene, polyethylene medical material is preferably screwed lid 5, are opaque. 本实施例中无针加药输液正压接头内部无金属部件保证了输液病人进行核磁共振检查的正确结果。 To ensure the correct results of an MRI infusion patients embodiment medicated inner needle infusion pressure metal-free joint member according to the present embodiment.

Claims (10)

1.一种无针加药输液正压接头,包括外壳(I),所述外壳(I)分为垂直段(11),以及在所述垂直段(11)中部,与所述垂直段(11)相接的水平段(12 );其特征在于: 所述垂直段(11)内设有中空胶塞(2),所述中空胶塞(2)的上部插接固定有一个半刚性的胶塞内芯(3),所述中空胶塞(2)的中部设有支撑所述胶塞内芯(3)的隔层(21),所述中空胶塞(2)顶部的外壁与所述垂直段(11)上部的内壁之间形成密封结构;所述中空胶塞(2)将所述垂直段(11)与所述水平段(12)隔断,所述中空胶塞(2)的底部与所述垂直段(11)的底部之间通过位于所述外壳(I)内的中空垫片(4)固定。 A pressure infusion dosing needle fitting, comprising a housing (I), the housing (I) into (11), and in the middle of the vertical section (11) vertical section, with the vertical segment ( 11) in contact with the horizontal section (12); characterized in that: said vertical section (11) is provided with a hollow stopper (2), an upper portion of said hollow plug (2) is fixed to a plug semirigid the core plug (3), said hollow central plug (2) is provided supporting said plug core (3) of the barrier (21), said hollow plug (2) and the top of the outer wall said vertical section (11) to create a seal between the upper inner wall; said hollow stopper (2) to the vertical section (11) and said horizontal section (12) cut off, said hollow stopper (2) between the bottom and the bottom of the vertical section (11) positioned through said hollow gasket (4) is fixed within the housing (I).
2.根据权利要求1所述的一种无针加药输液正压接头,其特征在于:所述中空垫片(4)包括与所述中空胶塞(2)内壁底部插接固定的垫片本体(41),以及位于所述垫片本体(41)底部的垫片凸缘(42),所述垫片凸缘(42)的顶面与所述中空胶塞(2)的底面固定,所述垫片凸缘(42)的侧面紧贴所述垂直段(11)的内壁,所述垂直段(11)的底部设有径向向内凸出的支撑部件(111),支撑所述垫片凸缘(42)的底面。 2. A method according to claim 1 dosing infusion needle pressure joint, characterized in that: said hollow gasket (4) comprises a hollow rubber plug (2) fixed to the bottom of the inner wall of the plug gasket body bottom surface (41), and said spacer positioned body (41) of the bottom flange of the gasket (42), said spacer flange (42) of the top surface of the hollow rubber plug (2) is fixed, inner wall of the side surface of the flange gasket (42) against the vertical section (11), the bottom of the vertical section (11) is provided with a support member (111) projecting radially inwardly of the support (42) of the bottom spacer flange.
3.根据权利要求2所述的一种无针加药输液正压接头,其特征在于:所述垫片凸缘(42)上设有减压缺口(421)。 According to claim 2, wherein one of the dosing needle infusion pressure joint, characterized in that: said spacer flange (42) is provided with notches under reduced pressure (421) on.
4.根据权利要求2所述的一种无针加药输液正压接头,其特征在于:所述中空胶塞(2)的中部设有位于所述中空胶塞(2)外壁上的胶塞凸缘(22),所述胶塞凸缘(22)紧贴所述垂直段(11)的内壁,并将所述垂直段(11)与所述水平段(12 )隔断。 According to claim 2, wherein one of the dosing needle infusion pressure joint, characterized in that: said hollow central plug (2) is provided with a stopper located in said hollow stopper (2) of the outer wall flange (22), (22) against the vertical section (11) of the inner wall of the stopper flange, and the vertical section (11) and said horizontal section (12) cut off.
5.根据权利要求1至4中任意一项所述的一种无针加药输液正压接头,其特征在于:所述胶塞内芯(3)包括与所述中空胶塞(2)内壁插接固定的内芯本体(31)以及与位于所述内芯本体(31)顶部的内芯凸缘(32),所述内芯凸缘(32)的底面与所述中空胶塞(2)的顶面固定。 1 to 4 according to any one of one of the positive-pressure infusion dosing needle connector as claimed in claim, wherein: said plug core (3) comprises an inner wall of the hollow stopper (2) fixed inner core plug body (31) and a core located within the body (31) of the top flange of the inner core (32), a bottom surface of the inner core flange (32) and said hollow plug (2 ) fixed to the top surface.
6.根据权利要求5所述的一种无针加药输液正压接头,其特征在于:所述胶塞内芯(3)的顶面的中心设有进液口( 33 )。 6. A method according to claim 5, wherein the dosing needle infusion pressure joint, characterized in that: the center of the top surface of the plug core (3) is provided with a liquid inlet (33).
7.根据权利要求1至4中任意一项所述的一种无针加药输液正压接头,其特征在于:所述垂直段(11)上部的外壁上套接有旋紧盖(5 )。 According to claim 1 to 4 according to any one of a needle dosing infusion pressure joint, characterized in that: (11) an upper portion of the outer wall of the vertical section is mounted a screwed lid (5) .
8.根据权利要求1至4中任意一项所述的一种无针加药输液正压接头,其特征在于:所述水平段(12)的外壁上套接有螺口(61),所述螺口(61)与所述水平段(12)的径向之间套接内螺护帽(62)。 A medium according to any of claims 1 to 4, wherein the positive-pressure infusion dosing needle fitting as claimed in claim, wherein: said horizontal leg (12) of the outer wall is mounted a screw (61), the radially within said socket cap screw retaining screw (61) and the horizontal leg (12) between (62).
9.根据权利要求1至4中任意一项所述的一种无针加药输液正压接头,其特征在于:所述外壳(I)和所述中空垫片(4)均是透明的。 According to claim 1 to 4, one kind of any one of the dosing needle infusion pressure joint, characterized in that: said housing (I) and the hollow gasket (4) are transparent.
10.根据权利要求9中所述的一种无针加药输液正压接头,其特征在于:所述外壳(I)和所述中空垫片(4)均由医用聚碳酸酯制成,所述胶塞内芯(3)由医用聚甲醛制成,所述中空胶塞(2)由医用硅胶制成。 10. A method according to claim 9, claim dosing infusion needle pressure joint, characterized in that: said housing (I) and the hollow gasket (4) are made of medical polycarbonate, the said plug core (3) made of medical polyoxymethylene, said hollow stopper (2) made of medical grade silicone.
CN201310646442.9A 2013-12-03 2013-12-03 Needleless medication addition infusion positive pressure connector CN103599577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310646442.9A CN103599577A (en) 2013-12-03 2013-12-03 Needleless medication addition infusion positive pressure connector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310646442.9A CN103599577A (en) 2013-12-03 2013-12-03 Needleless medication addition infusion positive pressure connector
PCT/CN2014/092274 WO2015081802A1 (en) 2013-12-03 2014-11-26 Needle-less dosing infusion positive pressure connector

Publications (1)

Publication Number Publication Date
CN103599577A true CN103599577A (en) 2014-02-26

Family

ID=50117879

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310646442.9A CN103599577A (en) 2013-12-03 2013-12-03 Needleless medication addition infusion positive pressure connector

Country Status (2)

Country Link
CN (1) CN103599577A (en)
WO (1) WO2015081802A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015081802A1 (en) * 2013-12-03 2015-06-11 上海康德莱企业发展集团医疗器械有限公司 Needle-less dosing infusion positive pressure connector

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1270533A (en) * 1997-09-15 2000-10-18 阿拉里斯医疗系统公司 Needless valve
US6245048B1 (en) * 1996-12-16 2001-06-12 Icu Medical, Inc. Medical valve with positive flow characteristics
US6428520B1 (en) * 1996-12-16 2002-08-06 Icu Medical, Inc. Positive-flow valve
US6883778B1 (en) * 1996-11-18 2005-04-26 Nypro Inc. Apparatus for reducing fluid drawback through a medical valve
CN201061640Y (en) * 2007-08-08 2008-05-21 东 孙 Non-needle enclosed transfusion joint
CN201414998Y (en) * 2009-05-31 2010-03-03 广东龙心医疗器械有限公司 Needle-free positive-pressure dosing infusion joint
CN101879339A (en) * 2010-07-12 2010-11-10 上海康德莱企业发展集团医疗器械有限公司 Needleless dosing positive pressure connector
CN201840715U (en) * 2010-07-12 2011-05-25 上海康德莱企业发展集团医疗器械有限公司 Needle-free medicine adding positive pressure connector
CN203677628U (en) * 2013-12-03 2014-07-02 上海康德莱企业发展集团医疗器械有限公司 Needle-free medicine adding and infusion positive pressure joint

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201091713Y (en) * 2007-08-17 2008-07-30 朱锡才 Infusion connector
CN103599577A (en) * 2013-12-03 2014-02-26 上海康德莱企业发展集团医疗器械有限公司 Needleless medication addition infusion positive pressure connector

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6883778B1 (en) * 1996-11-18 2005-04-26 Nypro Inc. Apparatus for reducing fluid drawback through a medical valve
US6245048B1 (en) * 1996-12-16 2001-06-12 Icu Medical, Inc. Medical valve with positive flow characteristics
US6428520B1 (en) * 1996-12-16 2002-08-06 Icu Medical, Inc. Positive-flow valve
CN1270533A (en) * 1997-09-15 2000-10-18 阿拉里斯医疗系统公司 Needless valve
CN201061640Y (en) * 2007-08-08 2008-05-21 东 孙 Non-needle enclosed transfusion joint
CN201414998Y (en) * 2009-05-31 2010-03-03 广东龙心医疗器械有限公司 Needle-free positive-pressure dosing infusion joint
CN101879339A (en) * 2010-07-12 2010-11-10 上海康德莱企业发展集团医疗器械有限公司 Needleless dosing positive pressure connector
CN201840715U (en) * 2010-07-12 2011-05-25 上海康德莱企业发展集团医疗器械有限公司 Needle-free medicine adding positive pressure connector
CN203677628U (en) * 2013-12-03 2014-07-02 上海康德莱企业发展集团医疗器械有限公司 Needle-free medicine adding and infusion positive pressure joint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015081802A1 (en) * 2013-12-03 2015-06-11 上海康德莱企业发展集团医疗器械有限公司 Needle-less dosing infusion positive pressure connector

Also Published As

Publication number Publication date
WO2015081802A1 (en) 2015-06-11

Similar Documents

Publication Publication Date Title
EP0629418B1 (en) Needleless access device
JP3626179B2 (en) Medical tubular connector
US20140261558A1 (en) Female luer connector disinfecting cap
US20100306938A1 (en) Medical implement cleaning device with friction-based fitting
CN102164628B (en) A diaphragm for connecting the syringe to the container or hose line
CN1531981A (en) Mixing/charging port for medical treatment
CN1874814A (en) Flush syringe having anti-reflux features
SK2382001A3 (en) Container for intravenous administration
CN101879339B (en) Needleless dosing positive pressure connector
US9289588B2 (en) Connector against contrary flowing for medical treatment
CN1874815A (en) Flush syringe having anti-reflux stopper
CN204798514U (en) End cap subassembly and injection system thereof
CN201930309U (en) Bubble-free anti-bleed-return infusion set
CN202920736U (en) Disposable infusion apparatus capable of cutting off liquid automatically
US9039989B2 (en) Disinfection cap for disinfecting a male luer end of an infusion therapy device
CN202605452U (en) Automatic exhausting and liquid-stopping transfusion set
AU2011258245B2 (en) Connector cap for priming a transfusion line
CN104399145B (en) One kind of double lumen tubing puncture intravenous catheter
CN203107819U (en) Automatic stop solution protective cap
JP4118598B2 (en) Seal valve and injector connecting port
CN201061640Y (en) Non-needle enclosed transfusion joint
CN202666117U (en) Disposable anti-back-flow infusion set
CN201001885Y (en) Safety device for infusion device
CN203694250U (en) Novel self-exhausting remaining needle
CN201643333U (en) Blood return preventing vein detained needle

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
RJ01