CN106955399A - 安全注射器 - Google Patents

安全注射器 Download PDF

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Publication number
CN106955399A
CN106955399A CN201610012305.3A CN201610012305A CN106955399A CN 106955399 A CN106955399 A CN 106955399A CN 201610012305 A CN201610012305 A CN 201610012305A CN 106955399 A CN106955399 A CN 106955399A
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needle stand
syringe
safety injector
raker
variant part
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CN106955399B (zh
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吕文进
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Xingxu Medical Instrument Suzhou Co ltd
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Individual
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Priority to CN201610012305.3A priority Critical patent/CN106955399B/zh
Priority to TW105142782A priority patent/TWI640335B/zh
Priority to MA42866A priority patent/MA42866A1/fr
Priority to BR112018013823-1A priority patent/BR112018013823B1/pt
Priority to KR1020187020053A priority patent/KR102203317B1/ko
Priority to ES16883433T priority patent/ES2869288T3/es
Priority to PL16883433T priority patent/PL3400980T3/pl
Priority to HUE16883433A priority patent/HUE053897T2/hu
Priority to MX2018008392A priority patent/MX2018008392A/es
Priority to JP2018533944A priority patent/JP6576565B2/ja
Priority to MYPI2018001154A priority patent/MY193032A/en
Priority to CA3010878A priority patent/CA3010878C/en
Priority to UAA201807590A priority patent/UA121916C2/uk
Priority to PE2018001246A priority patent/PE20181285A1/es
Priority to EP16883433.1A priority patent/EP3400980B1/en
Priority to RU2018124348A priority patent/RU2703655C1/ru
Priority to US16/068,216 priority patent/US10918806B2/en
Priority to AU2016384940A priority patent/AU2016384940B2/en
Priority to PCT/CN2016/112099 priority patent/WO2017118308A1/zh
Publication of CN106955399A publication Critical patent/CN106955399A/zh
Priority to CONC2018/0006591A priority patent/CO2018006591A2/es
Priority to PH12018501423A priority patent/PH12018501423A1/en
Priority to ZA2018/05077A priority patent/ZA201805077B/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3232—Semi-automatic needle retraction, i.e. in which triggering of the needle retraction requires a deliberate action by the user, e.g. manual release of spring-biased retraction means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A61M2005/31516—Piston or piston-rod constructions, e.g. connection of piston with piston-rod reducing dead-space in the syringe barrel after delivery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M2005/3206—Needle or needle hub disconnecting devices forming part of or being attached to the hub or syringe body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3223—Means impeding or disabling repositioning of used needles at the syringe nozzle
    • A61M2005/3224—Means to disalign the needle tip and syringe nozzle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/323—Connection between plunger distal end and needle hub proximal end, e.g. stud protruding from the plunger
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3231—Proximal end of needle captured or embedded inside piston head, e.g. by friction or hooks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/348—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub snap lock, i.e. upon axial displacement of needle assembly

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  • Hematology (AREA)
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  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

本发明涉及一种安全注射器，包含有一针筒，具有一筒身，一容室，一装座孔，一卡座槽；一针座，具有一座身装设于该针筒的装座孔，一针孔，一勾杆，一连动变形部连接于该勾杆，及一卡筒部接于该连动变形部受其连动并可卡止于该针筒的卡座槽；一杆塞，具有一杆身，以及一插勾孔可套接该针座的勾杆并压缩该连动变形部弹性变形使该针座的卡筒部不卡止于该针筒的卡座槽，该插勾孔可卡勾该针座的勾杆使移动该针座。由此，本发明的安全注射器可稳固定位针座，方便快速回拉针座，并有效减少药液的残留。

Description

安全注射器
技术领域
本发明与医疗器具有关，特别是指一种安全注射器。
背景技术
习知安全注射器，如美国US20060106339公开专利，其仍有针座的固定及回拉不确实，以及药液残留量较多的问题。
因此，所述已知安全注射器的缺点仍然有待改进。
发明内容
针对上述问题，本发明的主要目的在于提供一种安全注射器，其可稳固定位针座，方便快速回拉针座，并有效减少药液的残留。
为达到上述目的，本发明所提供的一种安全注射器，其特征在于包含有：一针筒1，具有一筒身11，一容室12，一装座孔13，一卡座槽14；一针座20，具有一座身21，所述座身21装设于所述针筒1的装座孔13，一针孔22，一勾杆24，一连动变形部25连接于所述勾杆24，及一卡筒部26接于所述连动变形部25受其连动并能卡止于所述针筒1的卡座槽14；一杆塞3，具有一杆身31，以及一插勾孔41能套接所述针座20的勾杆24并压缩所述连动变形部25弹性变形使所述针座20的卡筒部26不卡止于所述针筒1的卡座槽14，所述插勾孔41能卡勾所述针座20的勾杆24使移动所述针座20。
上述本发明的技术方案中，所述针座20具有一凹室27相通所述针孔22与连动变形部25。
所述针座20具有一导流面212相接于所述凹室27。
所述针座20具有一内缩面211对应所述连动变形部25。
所述针座20中心线到勾杆24外缘的垂直距离L1小于所述针座20中心线到连动变形部25外缘的垂直距离L2。
所述卡筒部26延伸一部分长度与所述连动变形部25相连接。
还包含一密封环R，所述密封环R设在所述针筒1与针座20之间。
所述针筒1具有一主筒10及一前套50套接于所述主筒10。
还包含一密封环R，所述密封环R设于所述前套50与针座20的座身21之间。
所述针筒1具有一沉孔15，所述针座20具有一座肩23配合定位于所述针筒1的沉孔15。
采用上述技术方案，本发明所提供的安全注射器其确实可稳固定位针座，方便快速回拉针座，并有效减少药液的残留。
附图说明
图1是本发明一较佳实施例的立体图；
图2是本发明一较佳实施例的一操作状态剖视图；
图3是本发明一较佳实施例另一操作状态剖视图；
图4是本发明一较佳实施例针座的立体图；
图5是本发明另一较佳实施例的立体图；
图6是本发明另一较佳实施例的一操作状态剖视图；
图7是本发明另一较佳实施例另一操作状态剖视图；
图8是本发明另一较佳实施例针座的立体图；
图9是本发明再一较佳实施例的立体图；
图10是本发明再一较佳实施例的一操作状态剖视图；
图11是本发明再一较佳实施例另一操作状态剖视图；
图12是本发明再一较佳实施例针座的立体图；
图13是本发明又一较佳实施例的立体图；
图14是本发明又一较佳实施例的一操作状态剖视图；
图15是本发明又一较佳实施例另一操作状态剖视图；
图16是本发明又一较佳实施例针座的立体图。
具体实施方式
现举以下实施例并结合附图对本发明的结构及功效进行详细说明。
申请人首先在此说明，在通篇说明书中所指的内、外、上、下等有关方向性的形容词，都是以本发明图式中的方向为基准。
以下将通过所列举的实施例配合随附的图式，详细说明本发明的技术内容及特征，其中：
如图1至图4所示，本发明一较佳实施例的安全注射器，包含有：
在本实施例中，主筒10单独即可构成一针筒1；即，广义而言，本发明安全注射器包含有一针筒1，针筒1具有一主筒10。
主筒10具有一筒身11，一容室12连通一装座孔13，一卡座槽14位于装座孔13的内缘，一沉孔15在容室12与卡座槽14之间。
一针座20，具有一座身21，座身21装设于主筒10的装座孔13，一针孔22，一座肩23配合定位于针筒1的沉孔15，一勾杆24其杆身较佳略呈锥形，一连动变形部25呈凸弧形片状连接于勾杆24，以及一卡筒部26接于连动变形部25受其连动并可卡止于针筒1的卡座槽14。
针座20还具有一内缩面211对应配合连动变形部25；即，座身21及/或勾杆24对应连动变形部25处形成略成削除的表面，以提供连动变形部25更多变形空间。
其中，针座20还具有一凹室27开通于针孔22与连动变形部25之间，针座20还具有一环槽28可供装设一密封环R密封针筒1与针座20之间。
针座20还具有一导流面212相接于凹室27，导流面212也相接于内缩面211，其可使药液更容易流到凹室27。
此外，卡筒部26的另一端还连接于其座身21。
在本实施例中，针座20在其针孔22直接装设一针头N。
本实施例中，针座20中心线到勾杆24外缘的垂直距离L1小于针座20中心线到连动变形部25外缘的垂直距离L2。
一杆塞3，具有一推杆30有一杆身31，以及一封塞40接设于推杆30的杆身31。
封塞40具有一插勾孔41可套接针座20的勾杆24并压缩连动变形部25弹性变形使针座20的卡筒部26不卡止于针筒1的卡座槽14，插勾孔41可卡勾针座20的勾杆24使移动针座20。
针座20的卡筒部26与针筒1的卡座槽14可有效卡合。
而当杆塞3向前推抵使其封塞40的插勾孔41套入针座20的勾杆24与连动变形部25时，即可控制针座20的卡筒部26离开针筒1的卡座槽14而不再卡合，即可顺利回拉。连动变形部25弹性变形时与座身21及勾杆24间的空隙变小，则可减少其间的药液残留。
最后，针座20与针头N也因针座20的连动变形部25与杆塞3的插勾孔41的配合关系而歪斜向一侧，针座20与针头N便不容易再被推出针筒1。
由此，实施例即达到本发明的目的。
而本发明的重点更在于，通过针座20的连动变形部25与凹室27配合，其设计还可有效减少注射药液残留量。
如图5至图8所示，本发明提供另一种实施例的安全注射器，其与前述实施例大致相同，主要不同点在于：
针座20还具有一接针部29形成在前段。
针头N设于一接件N1，接件N1再接设于针座20的接针部29。
由此，本实施例同样可以达到本发明的目的。
如图9至图12所示，为本发明另一较佳实施例的安全注射器，其与前述实施例大致相同，其主要不同点在于：
针筒1具有一主筒10及一前套50可密封地套接于主筒10共同形成装座孔13，密封环R设于前套50与针座20的座身21之间。
即，主筒10还具有一前套50套接于主筒10前端，本例中卡座槽14及沉孔15形成在主筒10，当然也可改为形成在前套50。利用两个构件组合而成，其可使针筒1的制造更为简单，且能增加其使用形式。
由此，本实施例同样可以达到本发明的目的。
如图13至图16所示，为本发明另一较佳实施例的安全注射器，其与前述实施例大致相同，其主要不同点在于：
针座20具有较大尺寸而另形成一外筒部供装设针头N。
卡筒部26可延伸一部分长度再与连动变形部25相连接。因此，仍能以封塞40的插勾孔41压缩针座20的连动变形部25弹性变形，而以带动卡筒部26卡合与不卡合。
由此，本实施例同样可以达到本发明的目的。
本发明推杆30与封塞40可为组合的之外，或也可为一体的。
本发明密封环R除了如前述为独立构件之外，其也可为一体成形于针筒1或一体成形于针座20。
以上所述的任何实施形态均可一个或多个互相搭配使用，均可达到本发明的目的。
综上所述，本发明所提供的安全注射器其确实可稳固定位针座，方便快速回拉针座，并有效减少药液的残留，因此确实达到本发明的目的。

Claims (10)

1.一种安全注射器，其特征在于包含有：
一针筒(1)，具有一筒身(11)，一容室(12)，一装座孔(13)，一卡座槽(14)；
一针座(20)，具有一座身(21)，所述座身(21)装设于所述针筒(1)的装座孔(13)，一针孔(22)，一勾杆(24)，一连动变形部(25)连接于所述勾杆(24)，及一卡筒部(26)接于所述连动变形部(25)受其连动并能卡止于所述针筒(1)的卡座槽(14)；
一杆塞(3)，具有一杆身(31)，以及一插勾孔(41)能套接所述针座(20)的勾杆(24)并压缩所述连动变形部(25)弹性变形使所述针座(20)的卡筒部(26)不卡止于所述针筒(1)的卡座槽(14)，所述插勾孔(41)能卡勾所述针座(20)的勾杆(24)使移动所述针座(20)。
2.如权利要求1所述的安全注射器，其特征在于：所述针座(20)具有一凹室(27)相通所述针孔(22)与连动变形部(25)。
3.如权利要求2所述的安全注射器，其特征在于：所述针座(20)具有一导流面(212)相接于所述凹室(27)。
4.如权利要求1所述的安全注射器，其特征在于：所述针座(20)具有一内缩面(211)对应所述连动变形部(25)。
5.如权利要求1所述的安全注射器，其特征在于：所述针座(20)中心线到勾杆(24)外缘的垂直距离(L1)小于所述针座(20)中心线到连动变形部(25)外缘的垂直距离(L2)。
6.如权利要求1所述的安全注射器，其特征在于：所述卡筒部(26)延伸一部分长度与所述连动变形部(25)相连接。
7.如权利要求1所述的安全注射器，其特征在于：还包含一密封环(R)，所述密封环(R)设在所述针筒(1)与针座(20)之间。
8.如权利要求1所述的安全注射器，其特征在于：所述针筒(1)具有一主筒(10)及一前套(50)套接于所述主筒(10)。
9.如权利要求8所述的安全注射器，其特征在于：还包含一密封环(R)，所述密封环(R)设于所述前套(50)与针座(20)的座身(21)之间。
10.如权利要求1所述的安全注射器，其特征在于：所述针筒(1)具有一沉孔(15)，所述针座(20)具有一座肩(23)配合定位于所述针筒(1)的沉孔(15)。
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RU2018124348A RU2703655C1 (ru) 2016-01-08 2016-12-26 Безопасный шприц
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UAA201807590A UA121916C2 (uk) 2016-01-08 2016-12-26 Безпечний шприц
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