CN1343307A - 保护光学测量仪器的测试片台架 - Google Patents

保护光学测量仪器的测试片台架 Download PDF

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CN1343307A
CN1343307A CN00804956A CN00804956A CN1343307A CN 1343307 A CN1343307 A CN 1343307A CN 00804956 A CN00804956 A CN 00804956A CN 00804956 A CN00804956 A CN 00804956A CN 1343307 A CN1343307 A CN 1343307A
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CN1308672C (zh
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布伦特·莫泽莱夫斯基
乔治·朗兹
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Trividia Health Inc
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Home Diagnostics Inc
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S436/00Chemistry: analytical and immunological testing
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Abstract

用于使用测试片的测试仪器类型的测试片台架,其中台架具有限定测试片轨道的屏板,可将插入的片条定位于光孔上方以测定分析物。台架具有固定安装在屏板上的防护罩,它位于光学窗口上方并可保护光学测试仪器。片条轨道具有将片条保持在测试位置上的稳定件。防护罩用于引导插入的片条的前沿与稳定件相啮合,以保证片条的适当插入。

Description

保护光学测量仪器的测试片台架
技术领域
本发明总的涉及分析物的测定,具体涉及基于反射的光学监测系统,例如在一次性片条上进行基于酶的血分析物的化学分析所用的系统(例如血糖测试系统),尤其涉及用于保护这种系统的光学装置免受污染和保证片条适当地插入监测系统的仪器。
背景技术
包括血糖计的便携式分析物监测系统在本领域广为人知。就血糖计来说,这些监测器是典型的便携式测量仪器,可用于个人特别是糖尿病患者监测血糖的水平。自从19世纪70年代以来,在糖尿病需要注射胰岛素之时,这些设备获得了不断增长的普及和个人家庭使用的接受。由于电子学、光学和测试片化学技术的发展,这些测量仪器已经不断地变得轻便、精确和方便。
如今使用最为普及的血糖计类型是基于光的反射并结合一次性使用的测试片。在使用中,使用携带与血反应的化学试剂的小块片条,例如美国专利号5,296,192中所述,在此将结合其内容作为参考。当新鲜的全血,特别是来自病人割开的手指,被应用在测试片上,发生的酶基反应产生了颜色变化,其典型的染色变化与呈现在血样中的葡萄糖浓度成比例。在加入血使反应进行之后,片条于是被插入监测仪器,光反射被用于测量颜色的变化。一旦仪器确定反应充分完成(最适宜在反应稳定时发生),反射测量可通过在监测仪器中的软件转化成葡萄糖测量,典型地以毫克/分升为单位并在显示屏上报告使用者。
这种光学监测仪器依靠适当的片条插入以保证含有血样和化学试剂的片条部分精确地对准光学测量装置。另外,如果光学装置受到血或其它外部物质的污染,精确度也会受到损害。由于糖尿病患者使用这些监测仪器,他们会经常受到视力和电动机的协调变差之累,因此重要的是监测仪器应便于适当的引入带条和引导带条的对准,以及保护光学装置免受污染。由于其可携带性,这些仪器会受到各种粗糙的环境和搬运,这些均可能污染光学装置。
现有技术的仪器不足以满足这些要求。在美国专利号5,843,692中描述了一种以ONE TOUCH为名出售的流行的测量器。此设备需要先将片条插入测量器,然后将血加在片条上。这种方法对使用者并不方便,当他或她必须将刺破的手指对准片条上的测试位置时,它却正位于测量器中。因此,这导致了疏忽时血液会溢出到测量器上,并因此污染了其光学装置。在一大滴血直接沉到片条上时,会时常发生这种情况。此装置在使用时还利用门来遮蔽光学装置周围的光线,这将在测量器不使用时保护光学装置。不幸的是,门的打开和关闭增加了测试过程的步骤。另外,由于此仪器的光学系统需要门来遮挡周围的光线,门的损坏会致使仪器无法使用。
发明内容
本领域需要一种便携式监测仪器,它可保证片条适当对准其光学装置,以及保护光学装置免受污染。
本发明涉及一种方法和仪器,其可保证片条适当插入并对准光反射计,并且同时保护光学测量装置。
根据本发明的实施例的一个方面,测试片接收件或屏板具有一位于监测仪器的光学装置上方的光学窗口。屏板上的一保护性光学罩盖或防护罩保护光学窗口下方的光学装置免受外来物质的污染。
根据本发明的实施例的另一方面,屏板具有一将片条引导到测试位置的轨道。屏板具有啮合片条上相配合的锯齿的指状物,用以触觉地指示片条的适当测试位置。
根据本发明的实施例的又一方面,保护性防护罩固定安装在屏板上并具有可引导插入的片条前沿的凸轮件,使得指状物可适当将其接收并引入适当的测试位置。
本发明的这些和其它的特征和优点将结合附图所示的本发明的实施例得到容易的理解。
附图说明
图1是本发明的具有创造性的测试片台架的便携式监测仪器的立体图,描述了传统测试片的插入。
图2示出了根据本发明的测试片台架的实施例的立体分解图。
图3是底面和防护罩的凸轮件的立体图。
图4A是现有技术的测试片的俯视图。
图4B是现有技术的测试片的仰视图。
图5是防护罩固定安装在屏板上后,图2的屏板沿线A-A和防护罩沿线A’-A’的横截面示意图。
具体实施方式
为了促进对本发明原理的理解,附图中描述的本发明的实施例的示意图将作为参考。
参见图1,描述了一便携式测试仪器2,例如用于测量全血中的血糖,由佛罗里达州Ft.Lauderdale的Home Diagnostics股份有限公司制造的商标为PRESTIGE LX的类型。仪器的外罩容纳了在应用测试片200的示例中基于微处理器计算血糖浓度的电子装置。仪器2具有可以是液晶显示器的显示屏4,用于报告使用者的计算结果和其它信息。片条200被插入片条接收台架6,下面将会对它进行详细讨论。
图2是图1所示台架6的分解示意图。可从仪器2上拆卸的台架便于清除血迹和其它杂质,并且可以接近覆盖仪器的光学装置的窗口(图中未显示)。台架6的移动允许光学窗口被清洁以保证仪器2的最佳性能。台架6包括两个固定在一起的主要部件,它们是屏板10和防护罩100,将在下文中依次讨论。
屏板10接收片条并将其引导到测量位置以便适当操作。屏板10具有空腔12,它低于套管的上表面,横向尺寸可使片条紧密地滑动,间隙样式保证在允许片条前进时的横向稳定性。在空腔12的每一边上均有一稳定件或指状物14,它从与对面的指状物相反的直径方向伸入空腔。这些指状物12施压于从适当位置插入空腔12的片条,以使光学装置更好地读数。在插入时,片条紧密地对着空腔12的底面以使下面将要阐述的色斑被保持在光孔20上方。在台架6固定在测量仪器2上时,光孔20被定位在仪器的光学装置上方。屏板10也有固定地附连在此处的防护罩上的装置16,以及将台架6可移动地附连在测量仪器外罩上的装置18。
图2中还描述了第二主台架部件是防护罩100。防护罩100用来保护位于光孔20下方的光学测量装置,以及还帮助引导片条进入适当的测试位置,这在下文中将讨论到。防护罩具有将其固定地附连在屏板10上的装置102。如同所述,防护罩上的装置102与固定地安装在屏板上的协作装置16紧密配合。所述的这些特征将被示出,并且会用已知工艺中的大量机械的手段和方法之一提供部件间的固定附连,例如胶合、焊接、超声波或射频焊接,或者很坚固的机械锁定或棘爪。
转向图3,所示的是防护罩100的下侧。为了允许使用者在防护罩100被固定地附连在屏板10上时目睹插入的片条的前沿的前进,提供了观测槽104。还提供了凸轮件106,在防护罩100被固定地附连在屏板10上时,它在屏板的指状物14下提供向下的斜面以推动插入的片条的前沿。根据图5将深入论述此特征,它会在简要叙述图4A和4B所示的现有技术的片条后被讨论。
参见图4A,描述了现有技术的测试片的上表面,例如美国专利号5,296,192所述。片条200具有取样口或测试点202,在将片条引入仪器2之前,血将施加在其上面。片条200也具有锯齿204或其它配合指状物14的表面特征。当然,在啮合可位于片条上的任何地方的类似锯齿的台架上会提供其它配合结构。锯齿在片条插入正确的测试位置(也就是,使下述的色斑定向在屏板的光孔20上方)时提供用于指示的触觉引导,以及还提供保持片条位置的阻力。用手拉动片条可以容易地克服阻力,但如果在测试的过程中测量器被重新定向或受到震动,它足以使片条保持测试的位置。片条200也可具有镶边206,测量仪器2在片条被全部插入时将其用于光学检测。全部插入通常可表示测试的位置,以及将与诸如指状物14上的装置等配合结构与锯齿204啮合的位置相对应。镶边206同样可通过图2和3所示的观测槽104示意性地让使用者确信片条已经被适当地插入。在片条200的底侧上没有镶边,使用者可以通过槽104目睹前沿是否含有所示镶边206以及片条是否被适当地插入。
图4B描述了图4A所示片条的底面。观察孔或色斑208基本上位于测试点204正下方。当含有分析物的流体施加在测试点202上时,它经过含有化学物质的元件在片条中产生色彩变化,如果所加样品足量,可以在测试仪器2中插入片条200前观察色斑208使其得到证实。在片条插入正确的测试位置时,色斑208位于屏板中的光孔20上方以使光学测量装置接近色斑208。
现在转向图5,示出了台架6的横截面示意图,显示了屏板10和防护罩100互相固定地相连。屏板10和防护罩100的横截面分别沿着剖面线A-A和A’-A’。可见,图1中对应于片条轨道22的空腔12,其中片条将沿箭头B的方向插入。可以理解的是,被插入的片条的前沿将遇到凸轮件106并向下偏转致使前沿通过指状物14下方。如同所示,在图4A和4B中描述的现有技术的片条中,突起14a提供了与锯齿204配合的结构。又如所示,光孔20位于以示意的方式描述的光学测量装置300的上方,可以理解的是,台架的防护罩部分100保护光学装置300免受污染。
当附图和前面的叙述详细地说明和叙述了本发明时,在特性上相同将被视为是说明性的和非局限性的,应当理解的是所示和所述的只是说明性的实施例,所有落在本发明的精神和范围之中的变化和修改都将得到保护。例如,本发明的应用并不局限在光的反射系数的测量或血糖水平的测量,还将发现任何需要插入测试片的测量类型的应用。

Claims (11)

1.一种测试片台架,它可用来容纳分析测定的测试片,测试台架包括:
一屏板部分,包括:
片条轨道,其尺寸可在其中容纳一测试片,以及在允许所述片条以所述片条的纵向尺寸的方向可滑动地被插入时,向所述片条提供横向的稳定性;
沿所述片条轨道的光孔,其尺寸位于至少一部分所述片条之下并提供其中的光学通道;
至少一个稳定件,其在所述光孔附近伸入所述片条轨道,使得根据所述光孔以预定的空间方向在所述测试片的所述部分上保持测试片;
防护罩部分,其固定附连在所述片条轨道上方的所述屏板部分,以便对上方的所述光孔加以保护;防护罩部分包括:
至少一个可降到所述片条轨道之中的凸轮件并且其位置便于引导插入的片条的前沿与至少一个稳定件相啮合。
2.如权利要求1所述的测试片台架,其特征在于,所述至少一个稳定件包括至少一个指状部件。
3.如权利要求2所述的测试片台架,其特征在于,所述至少一个指状部件包括用于啮合测试片上的锯齿的突出部。
4.权利要求1的测试片还包括在插入片条上的啮合锯齿的结构,用于在片条完全插入后提供测试片的保持力。
5.如权利要求4所述的测试片台架,其特征在于,所述结构还提供了片条完全插入的触觉指示。
6.如权利要求3所述的测试片台架,其特征在于,有两个指状物。
7.如权利要求1所述的测试片台架,其特征在于,有两个凸轮件。
8.一种测试仪器包括如权利要求1的测试片台架。
9.一种进行分析测定的方法,包括步骤:
提供如权利要求7所阐述的测试仪器;
提供具有前沿和色斑的测试片;
将含有分析物的材料施加于所述测试片,以使在所述色斑引起可测量的光学变化;
将测试片引入所述片条轨道;
使所述测试片前进,使得所述至少一个凸轮件引导所述前沿与至少一个稳定件相啮合,直至所述色斑位于所述光孔上方;
光学接近所述色斑以进行分析测定。
10.如权利要求9所述的方法,还包括在所述色斑位于所述光孔上方时在所述片条轨道中保持所述片条位置的步骤。
11.如权利要求9所述的方法,还包括在所述色斑位于所述光孔上方时提供触觉指示的步骤。
CNB008049564A 1999-11-24 2000-11-22 保护光学测量仪器的测试片台架 Expired - Lifetime CN1308672C (zh)

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Publication number Priority date Publication date Assignee Title
CN103959061A (zh) * 2011-11-24 2014-07-30 霍夫曼-拉罗奇有限公司 用于检测分析物的对称测试元件
CN103959061B (zh) * 2011-11-24 2015-11-25 霍夫曼-拉罗奇有限公司 用于检测分析物的对称测试元件

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US6458326B1 (en) 2002-10-01
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