CN1550780A - 两方向血糖测定器 - Google Patents
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Abstract
一种两方向血糖测定器,该两方向血糖测定器包括测定器本体,测定条,多个电子部件以及上测定条接收端口和下测定条接收端口。测定器本体配有位于其正面用以显示测定的数值和各种图像信息的液晶显示板。测定条在采血点处与血液接触,以便测定血液的血糖浓度。电子部件用于测定血液的血糖浓度。上测定条接收端口和下测定条接收端口分别被形成在测定器本体的上端和下端,以便接收测定条,并且都与电子部件电连接。
Description
技术领域
本发明一般涉及一种血糖测定器,尤其是涉及一种两方向血糖测定器,其允许测定条(measurement strip)插入两方向血糖测定器的上端和下端之一,从而大大提高在测定血糖时用户的方便性。
背景技术
近来,随着电子产品的功能和性能的迅速开发,有许多工作致力于改善电子消费品如家用电器的使用方便性。
在医疗仪器领域也呈现这种趋势。对于消费者直接选择和使用的医疗仪器,认为其使用方便性与其性能同等重要。
血糖测定器是这种医疗仪器之一。众所周知,血糖测定器是一种使需要调节血糖的糖尿病患者能够容易地测定血液中的血糖浓度的仪器。
在早期,在从血液中分离出血清和血球之后,利用早期的被安置在医院中的血糖测定器测定血糖。此后,开发了下一代技术,其不需要擦去血液或除去血球。该下一代技术分为光强测定法或电化学测定法。在该下一代技术中,使用了被统称为测定条的测定部件。在这种情况下,从严格意义上说,测定条仅指用于光强测定法中的测定部件。用于电化学测定法中的测定部件被称为生物传感器。
光强测定法的基本原理是利用通过氧化酶和过氧化物酶进行的葡萄糖氧化反应。光强测定法是通过分析起反应的指示剂的颜色变化,来测定血糖的浓度。在光强测定法中,按照以下方式测定血糖:将血液涂在反应试纸的表面上,在预定长反应时间过去之后除去血液,将不透明的反射板放在反应试纸下面以反射光,从发光装置发射一定量的光到反应试纸的表面上,以及利用反射光量。
然而,光强测定法的问题在于不能实现准确的测定,这是因为,在血液被涂在反应试纸上之后,如果在实际的反应时间超过或短于适当的反应时间的时候血液被擦除了,则反应不均匀。光强测定法的问题还在于不能实现血糖的准确测定,这是因为,当血液从反应试纸的上表面被擦除以允许光直接照射到反应试纸上时,由于反应试纸的材料或施加于反应试纸的光强的不同,而产生了不同的测定值。而且,光强测定法的问题还在于反应试纸的使用和更换不方便,以及测定步骤的数量和测定时间增加了,由此降低了测定效率。
一种克服以上缺点的血糖测定法是电化学测定法。该电化学测定法利用电介质而不是色素源,来测定在葡萄糖的氧化酶与电极反应的过程中所涉及的电子。当血样被涂在用作测定传感器的测定传感器的反应层上时,血液中的血糖被氧化酶氧化,氧化酶被还原。此时,电子接收器使氧化酶氧化,并使其自身还原。因此,还原的电子接收器失去电子,并且在被施加了某一电压的电子表面上再次被电化学氧化。由于此时产生的电流量与血液中葡萄糖的浓度成比例,因此通过测定电流量来测定血液中葡萄糖的浓度。
如上所述,用于电化学测定血糖浓度的血糖测定器通过测定电流量来测定血糖,因此可以较准确地测定血糖的浓度,可减少测定时间,以及可大大改善包括使用方便性在内的使用性能。
在图1中,以附图标记101表示电化学血糖测定器,其包括测定器本体103以及插入测定器本体103中的测定条105。如图1所示,由于血液是在指尖上被采集的,测定条105被安置在测定器本体103的上端。而且,在测定器本体103的上端形成条接收孔112。液晶显示器(LCD)面板107被安装在测定器本体103的正面的上部,以便以数字和图标形式显示测定值和各种图像信息。电源开关109和控制开关111位于面板107附近。
当利用血糖测定器101测定血糖时,以下面的方式采集一滴血:接通电源开关109,清洗手指上的采血点,擦干手指,以及利用放血器刺破指尖。此后,当测定条105与该血滴接触时,血糖值就被显示在显示面板107上。
为了如上所述测定血糖,利用如图2所示的放血器等刺破指尖,这样能够采集足量的血液,但是其缺点是在指尖的刺破点处产生了疼痛。
当在前臂的内侧点处采血以克服上述问题时,如图3a所示,将几乎感觉不到疼痛,但是其不方便性在于测定器本体103被倒置,以及由此难以辨认在显示面板107上显示的数字或图标。相反,有可能使测定条105与采血点110接触,同时保持测定器本体103竖直,以便能够容易地观看显示面板107,如图3b所示。然而,在这种情况下,拿着血糖测定器的右手的手腕过度地弯曲,鉴于人体工程学造成了使用的不方便。
发明内容
因此,提出本发明以克服现有技术中出现的以上问题,本发明的目的是提供一种两方向血糖测定器,其允许测定条选择性地插入两方向血糖测定器的上端和下端,从而测定条可以以与常规血糖测定器相同的方式插入两方向血糖测定器的上端,由此允许在指尖采血;以及测定条能够插入两方向血糖测定器的下端,由此允许方便地在采血时几乎不产生疼痛的手臂的某点处采血。
为实现上述目的,本发明提供一种两方向血糖测定器,该两方向血糖测定器包括:测定器本体,配有在测定器本体的正面形成的、用于显示测定值和各种图像信息的显示单元;上接收孔,形成在上述测定器本体的上端,用于接收要插入的上测定条;以及下接收孔,形成在测定器本体的下端,用于接收要插入的下测定条。
附图说明
由以下连同附图的详细说明,本发明的以上和其它目的、特征及优点将变得更明显,其中:
图1是常规电化学血糖测定器的正视图;
图2显示了图1的正用于在指尖处测定血糖的血糖测定器;
图3a和图3b显示了图1的正用于在手臂的内侧点处测定血糖的血糖测定器;
图4是测定条插入其上端的两方向血糖测定器的正视图;
图5是图4的从其上端移去测定条的两方向血糖测定器的平面图;
图6所示的框图显示了图4的两方向血糖测定器的内部电路的结构;
图7显示了图4的正用于在指尖处测定血糖的两方向血糖测定器;
图8显示了图4的正用于在前臂的内侧点处测定血糖的两方向血糖测定器。
具体实施方式
以下将参照附图,在附图中相同的附图标记表示相同或相似的部件。
以下将参照附图详细说明根据本发明优选实施例的两方向血糖测定器。
如图4所示,本发明的两方向血糖测定器1包括测定器本体3,显示单元7形成在测定器本体3的正面,以便显示各种数值或各种图像信息,例如通知血糖测定的顺序或指示测定结果值。在上部的显示单元7的下面布置了各种开关,包括用于接通或断开两方向血糖测定器1的电源开关9,以及用于操作两方向血糖测定器1的控制开关11。
现有技术中公知的器件如液晶显示器(LCD)和发光二极管(LED)等可用于上部的显示单元7,然而,优选地使用LCD。
如图5所示,上测定条接收孔和下测定条接收孔12分别形成在测定器本体3的上端和下端的内部,以便上测定条和下测定条5a、5b分别插入其中。
而且,虽然未在附图中显示,但是用作电源的可拆卸电池被安装在测定器本体3的后面,且电连接到显示单元7、电源开关9、控制开关11,测定条接收端口12的电路板位于测定器本体3的内部。如图6所示的电路板配有:分别连接到上测定条接收孔和下测定条接收孔12的上连接器13和下连接器15;用于计算在连接器13和15中产生的信号的测定单元19;以及用于控制被安装在电路板上的各个部件的微控制器单元(MCU)17。
要通过测定器本体3的上接收孔和下接收孔(图5所示的12)插入的上测定条和下测定条5a、5b垂直地伸出,如图4所示,以便在与血液接触时与血液反应,并以典型的电化学方式测定血糖。尤其是,当在采血时流出少量血的人体某一点例如手臂某一点处测定血糖时,由本发明的发明者于2002年4月17日提交的、公开号为国际专利申请No.PCT/KR2002/000703(国际公开号No.WO 03/056345)的“配有用于快速采集少量样品的样品采集单元的生物传感器(Biosensor equipped withsample introducing unit for rapidly introducing small amount of sample)”优选地用作测定条。
当测定条5a或5b通过上测定条接收孔或下测定条接收孔12插入和连接到上连接器13或下连接器15时,血糖测定器1的自动开始信号被发送给微控制器单元17,从而血糖测定器1的操作自动地开始。微控制器电源17发送信号,以指示对于已插入了测定条5a或5b以便执行测定的连接器13或15,测定是可允许的,同时微控制器单元17发送信号,以指示对于没有插入测定条5a或5b以阻止测定的连接器13或15,不可测定。因此,当测定条5a(或5b)被插入上连接器13(或下连接器15)中时,上连接器13(或下连接器15)从微控制器单元17接收指示测定可允许的信号,并能够测定血糖。相反,上连接器13(或下连接器15)从微控制器单元17接收指示不可测定的信号,并且不能测定血糖。而且,如果当测定条5a(或5b)已经被插入上连接器13(或下连接器15)中时,另一个测定条5b(或5a)被插入下连接器15(或上连接器13)中,则产生错误消息,并显示在显示面板7上。
当来自采血点10的血样与被插入上连接器13(或下连接器15)中、且已收到指示测定可允许的信号的测定条5a(或5b)接触时,产生测定信号,然后测定单元19计算测定信号的血糖值,并且计算的血糖值通过微控制器单元17显示在显示面板7上。
结果,本发明的两方向血糖测定器1具有以下的操作和效果。
当以与常规血糖测定器相同的方式在指尖处采血时,以下面的方式采血:清洗要采血的手指,擦干该手指,以及利用放血器刺破该手指的指尖。
此后,用另一支手拿着血糖测定器1,并且使测定条5a与采血点10接触,如图7所示,从而允许测定条5a与血液反应,并且使血糖值显示在显示面板7上。
相反,当在前臂的采血点10处采血以便减小采血时的疼痛时,执行以下步骤:将测定条5b插入下测定条接收孔12中,清洗要采血的前臂采血点10,完全擦干采血点10,利用放血器采血,以及使测定条5b与采血点10接触,从而测定条5b可以与血液反应,并且通过由测定条5b与血液的反应产生的电流值获得血糖值,然后使血糖值显示在显示面板7上。
如上所述,本发明提供一种两方向血糖测定器,其允许测定条选择性地插入上测定条接收孔和下测定条接收孔中。当两方向血糖测定器与插入两方向血糖测定器的上测定器接收孔中的测定条一起使用时,可以以典型的方式在用户的指尖处测定血液的血糖。另一方面,当在采血时几乎不产生疼痛的前臂的内侧点处测定血糖时,可以将测定条插入血糖测定器的下测定条接收孔中,从而能够容易地测定血糖,而不需要将血糖测定器的本体倒置以及过度地弯曲拿着测定器本体的手的手腕,而这是当通过将测定条插入上测定条接收孔中来测定血糖时所应该做的。结果,可以快速、准确和方便地测定血糖,而没有较大的疼痛。
虽然为说明性目的公开了本发明的优选实施例,但是本领域技术人员应该理解,在不背离由所附权利要求所定义的本发明的范围和精神的情况下,各种改变、添加和替代都是可能的。
Claims (5)
1.一种两方向血糖测定器,包括:
测定器本体(3),该测定器本体(3)由位于其正面用以显示测定的数值和各种图像信息的显示单元(7)形成;
上接收孔,所述上接收孔形成在测定器本体(3)的上端,用于使上测定条(5a)插入其中;以及
下接收孔,所述下接收孔形成在测定器本体(3)的下端,用于使下测定条(5b)插入其中。
2.根据权利要求1所述的两方向血糖测定器,还包括:
位于测定器本体(3)内的电路板,该电路板包括上连接器和下连接器(13、15),测定单元(19),以及微控制器单元(17),其中上连接器(13)与上接收孔连接,以及下连接器(15)与下接收孔连接。
3.根据权利要求2所述的两方向血糖测定器,其中微控制器单元(17)发送可测信号给上连接器和下连接器(13、15)之一,并且发送不可测信号给另一个。
4.根据权利要求2所述的两方向血糖测定器,其中当上连接器(13)和下连接器(15)都与测定条连接时,错误消息被显示在显示单元(7)上。
5.根据权利要求1所述的两方向血糖测定器,其中显示单元是液晶显示器。
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EP (1) | EP1475034B1 (zh) |
JP (1) | JP3831734B2 (zh) |
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US20040223877A1 (en) | 2004-11-11 |
US7704747B2 (en) | 2010-04-27 |
EP1475034B1 (en) | 2012-02-15 |
KR20040096039A (ko) | 2004-11-16 |
JP2004329919A (ja) | 2004-11-25 |
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KR100504766B1 (ko) | 2005-07-29 |
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