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CN204219535U - 笔式针组件 - Google Patents

笔式针组件 Download PDF

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Publication number
CN204219535U
CN204219535U CN201420463592.6U CN201420463592U CN204219535U CN 204219535 U CN204219535 U CN 204219535U CN 201420463592 U CN201420463592 U CN 201420463592U CN 204219535 U CN204219535 U CN 204219535U
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guard shield
distal end
needle stand
needle
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J·赫尔
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Yingbaida Co
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Becton Dickinson and Co
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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
    • A61M5/46—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 controlling depth of insertion
    • 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
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    • A—HUMAN NECESSITIES
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    • A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • A—HUMAN NECESSITIES
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    • 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
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    • 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
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    • 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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/326—Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
    • A61M2005/3261—Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user triggered by radial deflection of the anchoring parts between sleeve and syringe barrel, e.g. spreading of sleeve retaining hooks having slanted surfaces by engagement with conically shaped collet of the piston rod during the last portion of the injection stroke of the plunger
    • A61M2005/3263—Trigger provided at the distal end, i.e. syringe end for mounting a needle
    • 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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/326—Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
    • A61M2005/3267—Biased sleeves where the needle is uncovered by insertion of the needle into a patient's 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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • 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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3271—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position
    • 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
    • A61M5/347—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub rotatable, e.g. bayonet or screw

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  • Health & Medical Sciences (AREA)
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  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

本实用新型涉及一种笔式针组件，包括：针座，其适于接纳药物笔本体，所述药物笔本体中有药物隔室；固定至针座的针套管，针套管的远侧端部从针座的远侧端部延伸，并且针套管的近侧端部适于通向药物笔本体中的药物隔室；第一被动式护罩，其布置在所述针座上并包围针套管；偏压构件，在注射之后，偏压构件将第一被动式护罩偏压到覆盖住针套管的远侧位置；附接至针座的外套筒，外套筒的远侧端部包围第一被动式护罩和针座；其中，针座的远侧端部位于外套筒的远侧端部的远侧，并且在针的远侧末端与针座的远侧端部之间的距离是针的有效穿透深度。本实用新型能够在对患者组织施加更小可感压力的情况下允许更近地插入至最佳深度。

Description

笔式针组件
技术领域
本实用新型涉及注射装置领域，该注射装置具有在注射之后用来覆盖针的自动护罩，并且本实用新型尤其涉及具有延伸针座的安全笔式针。
背景技术
现有技术教导了各种适于与药物笔一起使用的安全护罩系统。被动式遮护系统的示例包括那些在美国专利申请公开文献No.2011/0288491和2011/0257603中描述的系统，这些美国专利申请公开文献通过引用并入本文中。典型地，在受遮护的药物笔中的针穿透深度由从针末端到形成该装置外周边的外套筒远侧端部之间的距离加以限定。本实用新型人已经研发出笔式针护罩系统，其中针的注射深度不用参考外套筒的位置加以限定。
实用新型内容
因此，本实用新型在一个方面中涉及一种笔式针组件，该笔式针组件包括被动式护罩，该被动式护罩适合于在注射之后覆盖住针套管。该组件包括针座，所述针座适合于接纳药物笔本体，在所述药物笔本体中有药物隔室。针套管被固定到所述针座，所述针套管的远侧端部从所述针座的远侧端部延伸，而所述针套管的近侧端部适合于通向所述笔本体中的药物隔室。被动式护罩设在该组件上并具有偏压构件，该偏压构件在注射之后将被动式护罩偏压到覆盖住针套管的远侧位置。附接至针座的外套筒包围被动式护罩和针座。针座相对于笔本体延伸，使得针座的远侧端部定位在外套筒的远侧端部的远侧。因此，针的远侧末端与所述针座的远侧端部之间的距离是针的有效穿透深 度。
在优选实施例中，根据本实用新型的笔式针组件包括延伸针座，该延伸针座适合于接纳药物笔本体，该药物笔本体中有药物隔室。如上所描述地，针被固定至针座，针的远侧端部从针座的远侧端部延伸，针的近侧端部适合于通向笔本体中的药物隔室。针座的远侧端部位于外套筒的远侧。针座上的内护罩包围针，使得针的远侧端部在初始位置中从内护罩突出并且弹簧沿远侧方向偏压该内护罩。外护罩包围内护罩，并对抗弹簧的偏压力以可释放的方式保持内护罩在初始位置中。外护罩在注射期间的向近侧运动释放内护罩，使其在弹簧的偏压力下运动以覆盖住处于使用后位置中的针的远侧端部。
因此，在上文描述的实施例中，针套管的有效穿透深度为：从针的远侧末端到针座的远侧端部。当病人或医护人员执行注射时，注射力集中在针座远侧端部的相对小的区域上，而没有分布至由外套筒形成的环。本实用新型的装置与现有技术中的安全护罩装置相比有助于实现适当的插入深度，因为在针座远侧端部上的力集中防止受弹簧偏压的内护罩移动经过针座上如现有技术中那样将力分布在外套筒上会使得内护罩能够向远侧地突出超过外套筒而潜在地限制注射深度的那个点。
当被动式安全护罩沿远侧方向驱策以在执行注射之后覆盖住针套管时，被动式护罩仅需从针座的远侧端部移动到覆盖住针的位置。由于在这个短距离上为被动式护罩提供动力所需的弹簧力更小，因此施加在病人的组织上的可感压力更小。
除了针座延伸部外，护罩组件的多个部件类似于并在一些实施例中相同于现有技术护罩系统。因此，设计可以容易变化并确保许多部件之间的互用性。
附图说明
图1描绘根据本实用新型的部分的笔式针组件，其中针座向远侧地延伸经过外套筒。
图2描绘根据现有技术的部分的笔式针组件设计，示出了针套管从外套筒远侧端部伸出的有效长度。
图3描绘根据本实用新型一个实施例的延伸针座。
图4是根据本实用新型一个实施例的笔式针在使用前状态中的透视图。
图5是根据本实用新型一个实施例的外护罩。
图6是根据本实用新型实施例的内护罩。
图7是图5中描绘的外护罩的剖视图。
图8是图6中描绘的内护罩的透视图。
图9是根据本实用新型另一实施例的包括非病人端部护罩的笔式针组件的剖视图。
具体实施方式
如本文所使用地，“远侧”方向朝向注射部位的方向，而“近侧方向”是相反的方向。“轴向”方向是沿着注射装置的纵向轴线的方向。针套管总体上沿轴向方向布置于该装置中。“径向”是垂直于轴向方向的方向。因此，“径向向内”通常意指更靠近针。“整合的(integral)”意指在使用者通常遇到的状态中是一体件——其不会被容易地分开。“被动式”护罩是注射装置上的护罩，该护罩在执行注射之后被自动驱策到覆盖住针套管的位置中而不需要由使用者或医护人员操纵。
图1示出部分的笔式针组件10，该部分笔式针组件包括位于外套筒18(以外轮廓线示出)远侧的针座12上的延伸的针座柱16。内外套筒从图1移除以更加清楚地描绘出针套管14相对于外套筒18的位置。距离d1是从针套管的末端到针座16的远侧端部测得的针的有效穿透深度。相对比地，在图2中绘出了现有技术组件20，其中针的有效穿透深度是从外套筒28的远侧端部到针套管24的末端测得的d2。根据本实用新型，有效穿透深度不受特别地限制，但本实用新型的可操作实施例包括8mm、6mm、5mm和4mm的穿透深度，所有这些穿透深度用于皮下注射。更短的有效套管长度可以用于皮内注射装置， 而延伸的针座将有助于在所有皮内和皮下套管长度上的适当插入。
图3描绘根据本实用新型的针座12，该针座适于将针套管固定在其中心孔中，并适于接纳药物笔本体。在优选实施例中，针座12包括本体部分33、比本体部分33窄的柱部分36、以及比本体部分33宽的基部部分37。基部部分37可以在其内表面上设有螺纹件或者其它构件以适于接纳笔本体。远侧柱36与常规针座柱相比略微地延伸，而针座12的其余部分——本体部分33和基部部分37——可以被设计尺寸以保证与现有药物笔装置的互用性。在这个实施例中，针座本体33包括突起部38，该突起部接纳被动式护罩以防止护罩转动。针座本体33也可以包括带突起部31的延伸的柔性臂部35以将护罩保持在初始近侧位置中。
在优选实施例中(该优选实施例不应当被解释为限制本实用新型)，如图4中所示地，护罩组件包括被动式的内护罩44和外护罩42，该外护罩包围住针14。在图4所示的实施例中，针14被固定到针座12并从针座远侧端部上的针座柱16向远侧地延伸。针14包括近侧端部，该近侧端部适于通向笔本体中的药物隔室。针借助粘合剂或机械锁或其它机构固定在针座上，使得针的有效穿透深度d1从针座柱的远侧端部延伸。针的近侧端部在形成于针座基部部分37内部中的空腔内延伸，但优选地不沿近侧方向延伸超过由针座的底部凸缘39形成的平面。这允许该组件在可剥离的柔性覆盖件位于针座基部37上的开口之上的情况下被运输。
在这个实施例中，内护罩44包括突齿部82(图8中示出)，该突齿部接合针座上的突起部38，并确保内护罩在外护罩42向近侧运动到套筒18中期间不会旋转。类似地，内护罩44当在注射之后受弹簧偏压力在针套管上向远侧运动时不旋转。
外护罩42包围内护罩44并覆盖住在使用之前处于初始位置的针14。如图5中所示，外护罩42设有棘爪部56，该棘爪部适于接合外套筒18的内表面中的凹陷部，以便在注射期间当外护罩被压到外套筒18中时控制外护罩42的路径。外护罩42在注射期间向近侧的运动将 内护罩44在弹簧偏压力下释放以覆盖住使用后位置中的针的远侧端部。
图9的实施例包括与如上文所描述的针座和外套筒相互作用的内外护罩，并且还包括被动式非病人端部护罩96，该被动式非病人端部护罩当笔式针从笔本体移除时自动地覆盖住针套管的非病人端部。完全双护罩实施例的操作基本上如前述美国专利申请公开文献2011/0257603所描述，前述美国专利申请公开文献由于这个目的通过引用被并入本文中。
在注射期间，外护罩42压靠注射部位，使用者对药物笔施压以使得针套管进入病人的组织。内护罩44的远侧端部优选地处于针座柱16的远侧端部处或者接近针座柱16的远侧端部，虽然在针达到完全穿透深度之前在内护罩压靠病人组织时可以存在内护罩44的一些轻微的近向侧运动。在延伸的针座设计中，对皮肤的笔插入力集中到针座柱16的顶部上，该顶部具有相对小的表面区域。这与现有技术设计相比允许实现更深的套管穿透，在现有技术中外套筒接触在注射部位周围的区域并将插入力分布在由外套筒在注射部位周围形成的环中。
外护罩42上的棘爪部56在位于外套筒18的内表面上的凹槽中引导，使得外护罩42的初始近侧运动仅沿轴向方向，而没有转动。在棘爪部56越过外套筒18上的凹槽之后，随着内护罩42和外护罩44上的相应的锥形表面70、72在彼此上滑动，外护罩能够旋转。在锥形表面70与表面72脱离接合时，内护罩能够在弹簧98的偏压力下向远侧地运动以覆盖住针套管14的远侧端部。
在受弹簧偏压的内护罩运动以覆盖住针套管时，由内护罩44施加在皮肤上的作用力会低于现有技术笔式针组件中的作用力，这是因为内护罩可以位于外套筒18的远侧，从而更靠近针套管的远侧端部。因此，被动式护罩44行进更短的距离。对应地，需要在注射期间用以将护罩维持在针座柱处或下方的作用力更小。这些因素能够允许插入更靠近待实现的最佳深度。
在使用后状态中，内护罩44优选地突出穿过外护罩42的远侧端 部上的开口。内护罩44形成有狭窄部分和更宽的肩部部件，所述狭窄部分配合穿过所述开口，而所述更宽的肩部部分在使用后状态中接触外护罩。优选地，设有在使用后用来锁住内护罩44的装置，以便保证针套管不会被再次暴露。例如，可以在内护罩上设置与外套筒18上的凹陷部匹配的突起部。或者，内护罩44可以抵靠针座锁定。对于本领域技术人员来说，其它构造将是显然的。
笔式针可以在保护性外盖帽位于护罩组件远侧上的情况下加以运输，该外盖帽经过盈配合与外套筒匹配。柔性的可剥离覆盖件可以设在组件近侧上的开口上，以将保护性外盖帽、外套筒和针座密封在产品内并保持产品无菌。为了将笔式针组件安装在药物笔上，使用者从柔性保护性覆盖件从该开口剥离，暴露出针座上适于接纳笔的构件。当笔式针组件经螺纹连接到笔上时(或通过将针座固定到笔本体的闩锁件或其它机构而连接)，可以将保护性外部覆盖件拿掉。
近侧端部护罩96同样可以以可释放的方式保持在初始位置中，并在使用之后通过从笔本体移除笔式针组件而锁定，如前述专利申请公开文献No.2011/0257603中所披露的一样。或者，可以在不偏离本实用新型范围的情况下使用被动式地遮护针套管近侧端部的一些其它机构。
对优选实施例的上述描述将不被认为限制本实用新型，本实用新型由所附权利要求限定。可以在不偏离本实用新型范围的情况下将一个实施例披露的特征组合在另一实施例中。

Claims (12)

1.一种笔式针组件，其特征在于，该笔式针组件包括：
针座，所述针座适于接纳药物笔本体，所述药物笔本体中有药物隔室；
固定至所述针座的针套管，所述针套管的远侧端部从所述针座的远侧端部延伸，并且所述针套管的近侧端部适于通向所述药物笔本体中的药物隔室；
第一被动式护罩，所述第一被动式护罩布置在所述针座上并包围所述针套管；
偏压构件，在注射之后，所述偏压构件将所述第一被动式护罩偏压到覆盖住所述针套管的远侧位置；
附接至所述针座的外套筒，所述外套筒的远侧端部包围所述第一被动式护罩和所述针座；
其中，所述针座的远侧端部位于所述外套筒的远侧端部的远侧，并且在针的远侧末端与所述针座的远侧端部之间的距离是针的有效穿透深度。
2.根据权利要求1所述的笔式针组件，其特征在于，该笔式针组件还包括从所述第一被动式护罩径向向外且从所述外套筒径向向内的外护罩，所述外护罩覆盖住在使用之前处于初始状态中的所述针套管。
3.根据权利要求1所述的笔式针组件，其特征在于，该笔式针组件还包括被动式近侧端部护罩和第二偏压构件，在注射之后，所述第二偏压构件偏压所述被动式近侧端部护罩以覆盖住所述针套管的近侧端部。
4.根据权利要求1所述的笔式针组件，其特征在于，限定针的有效穿透深度的在针的远侧末端与所述针座的远侧端部之间的距离处于4mm到8mm的范围中。
5.根据权利要求1所述的笔式针组件，其特征在于，限定针的有效穿透深度的在针的远侧末端与所述针座的远侧端部之间的距离是皮 内注射深度。
6.根据权利要求1所述的笔式针组件，其特征在于，
所述针座包括本体部分和柱部分，其中所述柱部分比所述本体部分窄并且位于所述本体部分的远侧；
所述第一被动式护罩被接纳在所述针座上，使得所述第一被动式护罩上的突齿部接合所述针座上的突起部以防止所述第一被动式护罩转动；
所述笔式针组件还包括：
从所述第一被动式护罩径向向外的外护罩，所述外护罩具有用以将所述第一被动式护罩保持在初始位置中的保持构件，其中所述外护罩的向近侧运动从所述保持构件释放所述第一被动式护罩，使得所述第一被动式护罩在所述偏压构件的驱策下向远侧运动，从而覆盖住处于使用后位置中的所述针套管；和
被动式近侧端部护罩，在注射之后，所述被动式近侧端部护罩被第二偏压构件偏压以覆盖住所述针套管的近侧端部。
7.一种笔式针组件，其特征在于，该笔式针组件包括：
针座，所述针座适于接纳药物笔本体，所述药物笔本体中有药物隔室；
固定至所述针座的针，所述针的远侧端部从所述针座的远侧端部延伸，并且所述针的近侧端部适于通向所述药物笔本体中的药物隔室；
所述针座上的内护罩，所述内护罩包围所述针，使得在初始位置中所述针的远侧端部从所述内护罩突出；
弹簧，所述弹簧沿远侧方向偏压所述内护罩；
外护罩，所述外护罩包围所述内护罩并对抗所述弹簧的偏压以可释放的方式将所述内护罩保持在所述初始位置中；和
套筒，所述套筒包围所述外护罩；
其中，所述针座的远侧端部位于所述外套筒的远侧。
8.根据权利要求7所述的笔式针组件，其特征在于，所述针的远侧末端与所述针座的远侧端部之间的距离是所述针的有效穿透深度。
9.根据权利要求8所述的笔式针组件，其特征在于，所述针的有效穿透深度是4mm到8mm。
10.根据权利要求7所述的笔式针组件，其特征在于，所述有效穿透深度是皮内注射深度。
11.根据权利要求7所述的笔式针组件，其特征在于，所述针座具有本体部分和柱部分，所述柱部分位于所述本体部分的远侧，其中所述柱部分向远侧延伸超过所述外套筒，并且其中所述本体部分没有向远侧延伸超过所述外套筒。
12.根据权利要求7所述的笔式针组件，其特征在于，该笔式针组件还包括第二弹簧和被动式近侧端部护罩，其中在注射之后，所述第二弹簧将所述近侧端部护罩偏压在所述针套管的近侧端部上。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116195996A (zh) * 2021-11-30 2023-06-02 上海微创生命科技有限公司 针组件、传感器底座组件及植入系统

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104307072A (zh) * 2014-10-29 2015-01-28 杭州普昂医疗科技有限公司 安全式胰岛素笔针
WO2016158141A1 (ja) * 2015-03-27 2016-10-06 テルモ株式会社 注射針組立体および薬剤注射装置
CN107427647A (zh) * 2015-03-27 2017-12-01 泰尔茂株式会社 注射针组装体及药剂注射装置
CN107405459B (zh) * 2015-03-27 2020-10-09 泰尔茂株式会社 注射针组装体及药剂注射装置
CA2895103A1 (en) 2015-06-25 2016-12-25 Montmed Inc Coloured pen needles, kit and method for using the same
US9757966B2 (en) * 2016-01-15 2017-09-12 Sympateco, Inc. Printer head cleaner assembly
USD938022S1 (en) * 2016-08-10 2021-12-07 Owen Mumford Limited Safety pen needle
USD847981S1 (en) * 2016-08-10 2019-05-07 Owen Mumford Limited Safety pen needle
GB2560556A (en) * 2017-03-15 2018-09-19 Owen Mumford Ltd A Needle cover
JP7111801B2 (ja) 2018-03-16 2022-08-02 テルモ株式会社 針組立体
USD914208S1 (en) 2019-06-14 2021-03-23 Owen Mumford Limited Syringe component
USD952136S1 (en) 2019-06-14 2022-05-17 Owen Mumford Limited Syringe
USD959651S1 (en) 2020-04-08 2022-08-02 Owen Mumford Limited Medical instrument
USD972745S1 (en) 2020-05-07 2022-12-13 Owen Mumford Limited Testing device
USD1069617S1 (en) 2021-03-29 2025-04-08 Owen Mumford Limited Testing device
USD1078052S1 (en) 2021-11-03 2025-06-03 Owen Mumford Limited Medical device
WO2023091966A1 (en) * 2021-11-17 2023-05-25 Embecta Corp. Retractable sleeve for pen needle assembly
CN118434465A (zh) * 2021-12-15 2024-08-02 赛诺菲 用于注射装置的组件、包括这种组件的注射装置、用于这种组件的药剂容器以及用于生产这种药剂容器的方法
USD1071168S1 (en) 2022-10-17 2025-04-15 Owen Mumford Limited Medical injector
USD1071161S1 (en) 2022-10-17 2025-04-15 Owen Mumford Limited Medical injector
USD1077210S1 (en) 2022-11-18 2025-05-27 Owen Mumford Limited Medical injector

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5542760A (en) 1995-09-26 1996-08-06 Becton Dickinson And Company Syringe filler for mixing insulins
US6221053B1 (en) 1998-02-20 2001-04-24 Becton, Dickinson And Company Multi-featured medication delivery pen
US5961495A (en) 1998-02-20 1999-10-05 Becton, Dickinson And Company Medication delivery pen having a priming mechanism
US6248095B1 (en) 1998-02-23 2001-06-19 Becton, Dickinson And Company Low-cost medication delivery pen
ES2258469T3 (es) 1999-08-05 2006-09-01 Becton Dickinson And Company Lapiz de administracion de medicacion.
US6277099B1 (en) 1999-08-06 2001-08-21 Becton, Dickinson And Company Medication delivery pen
US6585698B1 (en) 1999-11-01 2003-07-01 Becton, Dickinson & Company Electronic medical delivery pen having a multifunction actuator
US7850663B2 (en) 2001-01-12 2010-12-14 Becton, Dickinson And Company Medicament microdevice delivery system, cartridge and method of use
US6932794B2 (en) 2003-04-03 2005-08-23 Becton, Dickinson And Company Medication delivery pen
US7645264B2 (en) 2005-04-11 2010-01-12 Becton, Dickinson And Company Injection device with secondary reservoir
FR2884721A1 (fr) 2005-04-20 2006-10-27 Becton Dickinson France Soc Pa Ensemble d'injection et dispositif d'assistance a l'injection
JP5658039B2 (ja) 2008-01-17 2015-01-21 ベクトン・ディキンソン・アンド・カンパニーＢｅｃｔｏｎ， Ｄｉｃｋｉｎｓｏｎ Ａｎｄ Ｃｏｍｐａｎｙ 物質混合用バルブ
EP2262557B1 (en) 2008-03-13 2019-05-01 Becton, Dickinson and Company Safety needle assembly
US8632503B2 (en) * 2008-03-13 2014-01-21 Becton, Dickinson And Company Safety pen needle assembly having shielding for patient and non-patient ends
US9381136B2 (en) 2009-04-15 2016-07-05 Becton, Dickinson And Company Fixturing member and device for permitting mixing in a pen injector
AU2010242096B2 (en) * 2009-04-27 2012-08-02 Shl Group Ab Safety pen needle device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116195996A (zh) * 2021-11-30 2023-06-02 上海微创生命科技有限公司 针组件、传感器底座组件及植入系统

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ES2663776T3 (es) 2018-04-17
JP6755636B2 (ja) 2020-09-16
EP3332824A1 (en) 2018-06-13
EP2839854B1 (en) 2018-01-17
JP2019103852A (ja) 2019-06-27

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