CN102271583A - 皮肤刺痕装置 - Google Patents

皮肤刺痕装置 Download PDF

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CN102271583A
CN102271583A CN2009801530873A CN200980153087A CN102271583A CN 102271583 A CN102271583 A CN 102271583A CN 2009801530873 A CN2009801530873 A CN 2009801530873A CN 200980153087 A CN200980153087 A CN 200980153087A CN 102271583 A CN102271583 A CN 102271583A
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spring
lancet
trigger
shell
puneture
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CN102271583B (zh
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克莱夫·尼科尔斯
克里斯托夫·威廉·哈德逊
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Owen Mumford Ltd
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    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
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    • A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
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    • A61B5/15058—Joining techniques used for protective means
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Abstract

根据本发明的第一方面，提供一种皮肤刺痕装置。该装置包括外壳(2)以及容纳在外壳(2)内并与弹簧(8)一体形成的刺血针(12)。

Description

皮肤刺痕装置
技术领域
本发明涉及皮肤刺痕装置，尤其但不必然地是，涉及一种用于提供血样本的皮肤刺痕装置。
背景技术
在医疗和相关的诊断和测试领域，通常需要从对象采取小量的血样，以用于试验或分析血液的目的。获得血样的通常方法是通过使用小针头或刺血针在血管靠近表面的位置刺穿皮肤。为了避免感染和污染，切开装置优选地用于单个目的并且是一次性的。因而它们必须紧凑并且廉价制造。
许多一次性的刺穿装置普遍存在市场中。这包括UnistikTM制造并由Owen Mumford Ltd(Woodstock，UK)销售的产品。当前的设计包括模压塑料套，连接到弹簧的短针安装在该模压塑料套内。触发器形成在套内，当触发器被压下时，释放弹簧以使针通过套内的开口被释放出来。部分当前的设计需要操作员在触发之前预加载或扣紧弹簧。在其他设计中，刺穿装置被供应时就已经处于扣紧状态。用户也通常需要在触发之前从装置或针头的前端移除帽。用户因此必须执行至少两个步骤，有时候是三个步骤，以便执行血液取样程序。此外，这些设计包括若干必须单独制造并组装在一起的部件，这就增加了制造的复杂性和费用。
需要一种比现有设计更简单制造的刺穿装置。当然，任何改进设计必须是可靠的，以确保装置能在可操纵条件中提供给用户，并且必须能够简单使用。本发明就是考虑前述内容而设计的。
发明内容
根据本发明的第一方面，提供一种皮肤刺痕装置。该装置包括外壳、与弹簧一体形成并容纳在外壳内的刺血针、触发器以用于将弹簧保持在压缩状态直到用户通过致动触发器释放弹簧为止。弹簧可以是折叠式板簧，并且弹簧和刺血针可由单片材料形成。触发器可包括拇指板和取决于拇指板以与弹簧上的构造合作的造型。触发器可与外壳一体地形成。可被选地，触发器可与弹簧一体地形成。
外壳可具有用来将弹簧装载入外壳内的开口和可用于在弹簧被装载入外壳内时使用触发器的开口。当弹簧被装载入外壳内时，触发器可设置于触发器开口，使得弹簧被保持在外壳内。外壳也可具有开口，刺血针可在弹簧伸长时通过该开口退出外壳。
根据本发明的第二方面，提供一种皮肤刺痕装置。该装置包括外壳、容纳在外壳内的刺血针、用于驱动刺血针的弹簧、以及触发器，该触发器用于将弹簧保持在压缩状态直到用户通过致动触发器释放弹簧为止，至少该弹簧和触发器彼此一体地形成。刺血针可与弹簧一体地形成。
根据本发明的第三方面，提供一种制造皮肤刺痕装置的方法，该皮肤刺痕装置包括外壳和刺血针机构，该刺血针机构包括：刺血针；用于驱动刺血针的弹簧，该刺血针置于弹簧的远端处；以及触发器，至少该弹簧和触发器彼此一体地形成。该方法包括：通过外壳的装载口将刺血针机构推进外壳内；在将力应用到弹簧近端的同时堵塞弹簧远端的进一步运动，以压缩弹簧直到弹簧被触发器抓住以将弹簧锁定在压缩状态为止。该力也可将触发器进一步移动到外壳内，以到达触发器和弹簧的合作构造接合的适当位置。
弹簧远端的进一步的运动可通过临时地置于外壳内的刺血针退出开口附近的堵塞单元阻止，刺血针在装置被触发时通过该退出开口突出。
附图说明
图1是根据本发明实施例的皮肤刺痕装置的透视图；
图2是图1的皮肤刺痕装置在垂直平面内的横截面；
图3是图1的皮肤刺痕装置的外壳的透视图；
图4是图2的外壳在垂直平面内的横截面；
图5是图1的皮肤刺痕装置的驱动单元在加载弹簧部分之前的透视图；
图6是图1的皮肤刺痕装置的驱动单元的透视图，其加载了弹簧部分以及使刺血针帽覆盖刺血针。
具体实施方式
在图1中图示了皮肤刺痕装置，该装置设计成刺穿人的皮肤，例如提供小量的血样。通常地，装置用来刺穿人手指的指垫，留下小的血液斑点在手指上。该斑点例如使用试验片收集，以用于测量和试验中。皮肤刺痕装置1具有外壳2以及加载到外壳内的刺血针机构3，如图2中所图示。
图3和4分别地示出了外壳2和刺血针机构3。外壳2包括单片的模压片，在该模压片内，形成有供刺血针突出来的孔4、用于触发器5的开口和用于将驱动器和刺血针单元3装载入外壳2内的口6。一体地形成在外壳内壁内的是一对导轨7(参见图4)。这些导轨7沿外壳的各自侧壁自大体上临近孔4的边缘纵向地延伸到外壳长度沿线的1/3处左右的点。
刺血针机构3由模压、压印、挤压或切割成合适外形的单金属片形成。片被折叠以形成总体上U形的片，片的一侧被进一步折叠以形成板状折叠弹簧部分8，而片的另一侧被形成为触发器部分9。弹簧部8的远端形成有刺血针12，并且直接临近刺血针12的弹簧部的每一侧形成有一对锁定突出13，各个锁定突出对13限定它们之间的锁定凹槽14。触发器部9的远端形成有两个弹簧或臂10，其自触发器部9向弹簧部8垂直地延伸。各臂10的末端也形成有挡块或夹头11，各挡块11自各自的臂向其他臂突出，以便使臂之间的空间狭窄。这些挡块11可与置于弹簧部8的末端上的凹槽14接合，其将弹簧部保持在压缩配置，如图6所示。刺血针机构3也具有覆盖刺血针12的塑料刺血针帽15，如图6中所示，并具有足够长度以在装置1被组装和加载时通过刺血针孔4从刺血针12延伸出。刺血针帽15通常在组装前被模压到刺血针12之上，并仅在使用之前被立即移除。
装置1通过将刺血针机构3的刺血针末端装载到外壳2的口6内并且将刺血针机构3推入外壳2内而在组装台架上组装。外壳2的口的尺寸略微小于触发器部9和弹簧部8的最远部分之间的距离，使得触发器部分9在其进入外壳2的口6时向弹簧部8弯曲。触发器部9的弯曲使触发器臂10的末端上的挡块11向弹簧部8移动，使得挡块11移出导轨7所位于的平面。当刺血针机构3向外壳2进一步移动时，锁定突出13移入导轨7内，并且刺血针帽15向刺血针孔4移动。通过组装台架(未示出)上的堵塞单元防止刺血针帽15完全退出外壳2。刺血针帽15所提供的附加长度使刺血针帽15的远端在刺血针和驱动单元3被完全装载到外壳2内之前到达堵塞单元，以便用来将刺血针机构3推入外壳2内的力使弹簧部8压缩。
弹簧部8的压缩使每一对锁定突出的最后端穿过臂10之间的空间，该空间宽于挡块11之间的空间。一旦刺血针机构3足够地移入外壳2内使得触发器臂10的顶部邻接触发器开口5的边缘时，触发器部9将插入触发器开口5内，使触发器部9伸直并且使触发器臂10自弹簧部8离开以返回到它们的原始位置。该运动允许挡块11移入锁定凹槽14内，以便在刺血针孔4被揭开盖时，弹簧部8将部分地卸载，直到各对锁定突出13的最后端碰到挡块11以防止任何进一步的卸载。该局部卸载允许刺血针帽15的远端进一步退出外壳2，但保持弹簧部8处于加载配置。一旦装置1被完全组装，它然后被辐射以消毒待用。可被选地，刺血针机构可在组装之前被消毒。
在使用中，用户首先通过抓住刺血针帽的远端以移除刺血针帽15，该远端通过刺血针孔4退出外壳2。他或她然后将装置1紧靠皮肤布置，然后通过将触发器部9压入装置而释放弹簧部8。触发器部9的挤压使它曲伸，并且触发器臂10的末端上的挡块11向弹簧部8移动。挡块11然后移出锁定槽14，释放弹簧部8以从其压缩配置卸载并延伸。弹簧部8的卸载所提供的力使弹簧部过度延伸，使得刺血针12通过外壳2的刺血针孔4移出，刺穿皮肤。弹簧部然后轻微地收缩，将刺血针12送回外壳2内。
外壳2的内部上的导轨7在装置被激发并且弹簧部8卸载时，提供刺血针机构3的刺血针末端上的锁定突出13移动通过这些导轨7，从而确保刺血针12在不与外壳2接触的情况下移动通过刺血针孔4。
单部件刺血针机构应当由适宜的弹性材料比如金属或塑料形成，以使其充当弹簧作用，并且在致动装置时以便允许触发器部弯曲到外壳内。材料也应当能按照需要成型或铸造。
在备选实施例中，包括触发器臂和挡块的触发器部，可与外壳一起形成，并且与刺血针机构的其余部分单独地形成。装置然后可通过将刺血针机构推入外壳直至锁定突出碰到挡块为止而组装。装置然后可按上文所描述的那样操作。在这种实施例中，外壳由适度弹性的材料比如塑料或金属形成，以便允许触发器部在致动装置时弯曲到外壳内，同时也足够地硬以维持外壳的总体外形。材料应当也能按需要成型或铸造。
所描述的装置提供可靠的刺痕装置，其在使用时所需步骤不超过两个，并且它的制造和组装是简单的，同时也需要最小的步骤数。这就减少了制造费用和组装时间，这对于高批量制造是尤其重要的。
本领域技术人员应当理解的是，在不脱离本发明范围的情况下，可对上文所描述的实施例做出不同的修改。

Claims (16)

1.一种皮肤刺痕装置，其包括：
外壳；
与弹簧一体形成并容纳在外壳内的刺血针；以及
触发器，其用于将弹簧保持在压缩状态直到用户通过致动触发器释放弹簧为止。
2.如权利要求1所述的皮肤刺痕装置，其特征在于，所述弹簧是折叠式板簧。
3.如前述权利要求中任一项所述的皮肤刺痕装置，其特征在于，所述弹簧和刺血针可由单片材料形成。
4.如前述权利要求中任一项所述的皮肤刺痕装置，其特征在于，所述触发器包括拇指板和取决于拇指板以与弹簧上的构造合作以将弹簧保持在压缩状态的构造。
5.如前述权利要求中任一项所述的皮肤刺痕装置，其特征在于，所述触发器与外壳一体地形成。
6.如前述权利要求中任一项所述的皮肤刺痕装置，其特征在于，所述触发器与弹簧一体地形成。
7.如前述权利要求中任一项所述的皮肤刺痕装置，其特征在于，所述外壳具有用来将弹簧装载入外壳内的开口。
8.如附加于权利要求6的权利要求7所述的皮肤刺痕装置，其特征在于，所述外壳具有用于在弹簧被装载入外壳内时使用触发器的开口。
9.如权利要求8所述的皮肤刺痕装置，其特征在于，当弹簧被装载入外壳内时，触发器设置于触发器开口，使得弹簧被保持在外壳内。
10.如前述权利要求中任一项所述的皮肤刺痕装置，其特征在于，外壳也可具有开口，以允许刺血针在弹簧伸长时退出外壳。
11.一种皮肤刺痕装置，该装置包括外壳、容纳在外壳内的刺血针、用于驱动刺血针的弹簧、以及触发器，该触发器用于将弹簧保持在压缩状态直到用户通过致动触发器释放弹簧为止，至少该弹簧和触发器彼此一体地形成。
12.如权利要求11所述的皮肤刺痕装置，其特征在于，刺血针与弹簧一体地形成。
13.一种参考附图大体上如前文描述的皮肤刺痕装置。
14.一种制造皮肤刺痕装置的方法，该皮肤刺痕装置包括外壳和刺血针机构，该刺血针机构包括：刺血针；用于驱动刺血针的弹簧，该刺血针置于弹簧的远端处；以及触发器，至少该弹簧和触发器彼此一体地形成；该方法包括：
通过外壳的装载口将刺血针机构推进外壳内；
在将力应用到弹簧近端的同时阻止弹簧远端的进一步运动，以压缩弹簧直到弹簧被触发器抓住以将弹簧锁定在压缩状态为止。
15.如权利要求14所述的方法，其特征在于，该力也可将触发器进一步移动到外壳内，以到达触发器和弹簧的合作构造接合的适当位置。
16.如权利要求14或15中任一项所述的方法，其特征在于，弹簧远端的所述进一步的运动通过临时地置于外壳内的刺血针退出开口附近的堵塞单元被阻止，所述刺血针在装置被触发时通过该退出开口突出。
CN200980153087.3A 2008-11-17 2009-11-11 皮肤刺痕装置 Expired - Fee Related CN102271583B (zh)

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