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    • 5. 发明授权
    • Blood coagulation test cartridge, system, and method
    • 血液凝固试验盒,系统和方法
    • US07439069B2
    • 2008-10-21
    • US11047026
    • 2005-01-31
    • Douglas D. NippoldtCynthia T. ClagueDaniel G. Ericson
    • Douglas D. NippoldtCynthia T. ClagueDaniel G. Ericson
    • G01N33/86
    • G01N33/86G01N33/4905Y10T436/2575
    • A system and method for determining a coagulation time, e.g., thrombin time, PT, aPTT, and ACT, of a blood sample deposited in a test cartridge is disclosed. The test cartridge includes a blood receptacle that is open to the atmosphere into which a blood sample is to be deposited, a vacuum port that is open to atmosphere, and a spiral capillary within the test cartridge having a capillary length and cross-section area, a first capillary end of the spiral capillary open to the blood receptacle and a second capillary end of the spiral capillary open to the vacuum port, whereby the spiral capillary is closed to atmosphere. When a blood sample is deposited in the blood receptacle, a vacuum is drawn through the vacuum port and the blood is drawn through the spiral capillary until coagulation occurs. A pressure change is detected, and the coagulation time is measured.
    • 公开了一种用于确定沉积在测试盒中的血液样品的凝固时间,例如凝血酶时间,PT,aPTT和ACT的系统和方法。 测试盒包括对要沉积血液样本的大气开放的血液容器,对大气开放的真空端口以及具有毛细管长度和横截面面积的测试盒内的螺旋毛细管, 螺旋毛细管的第一毛细管端部通向血液容器,并且螺旋毛细管的第二毛细管端部通向真空端口,由此螺旋毛细管关闭到大气。 当血液样本沉积在血液容器中时,真空通过真空口抽出,血液通过螺旋毛细管吸入,直到发生凝血。 检测到压力变化,并测量凝固时间。
    • 7. 发明授权
    • Blood coagulation test cartridge, system, and method
    • 血液凝固试验盒,系统和方法
    • US07422905B2
    • 2008-09-09
    • US10826994
    • 2004-04-19
    • Cynthia T. ClagueDaniel S. CheekDouglas D. Nippoldt
    • Cynthia T. ClagueDaniel S. CheekDouglas D. Nippoldt
    • G01N33/86
    • G01N11/162G01N11/14G01N15/042G01N15/05G01N33/4905G01N2015/0092Y10T436/111666
    • A system and method for determining a coagulation time, e.g., TT, PT, aPTT, and ACT, of a test sample deposited in a test cartridge is disclosed. A cartridge housing having upper and lower major sides and a minor sidewall encloses a test chamber having a test chamber pivot element and is provided with a cartridge port for introducing a test sample into the test chamber. Ferromagnetic agitator vane leaflets extend from an agitator pivot element supported by the test chamber pivot element intermediate the upper and lower major sides for rotational motion. The agitator vane leaflets can be swept, in response to an external magnetic field, through the test sample in the absence of coagulation. A timer is started when the agitator movement is commenced whereupon the agitator moves freely. Resistance to agitator movement due to coagulation is detected, and the coagulation time is measured.
    • 公开了一种用于确定沉积在测试盒中的测试样品的凝固时间(例如TT,PT,aPTT和ACT)的系统和方法。 具有上下侧和下侧壁的盒壳体包围具有测试室枢转元件的测试室,并且设置有用于将测试样品引入测试室的盒端口。 铁磁搅拌器叶片叶片从由测试室枢转元件支撑的搅拌器枢轴元件延伸,位于上,下三个主要侧面以用于旋转运动。 在不存在凝结的情况下,搅拌器叶片叶片可以响应于外部磁场扫过测试样品。 当搅拌器运动开始时,搅拌器自由移动,启动定时器。 检测到由于凝结而产生的搅拌器运动阻力,测定凝固时间。