viscosity-based detection system - lapropharm plus · 2019. 7. 29. · diagnostica stago s.a.s rcs...
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![Page 1: Viscosity-based detection system - LAPROPHARM PLUS · 2019. 7. 29. · Diagnostica Stago S.A.S RCS Nanterre B305 151 409 3 allée Thérésa 92600 Asnières sur Seine France Ph. +33](https://reader035.vdocuments.site/reader035/viewer/2022062610/610ada1c6ee5183bf333a1e3/html5/thumbnails/1.jpg)
Viscosity-baseddetection system
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The change in viscosity is measured by monitoringthe amplitude of an oscillating steel ball
in a specially designed cuvette.
Clot detection is based on the increasein viscosity of the plasma being tested.
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ACTIVATING COILACTIVATING COIL ACTIVATING COILACTIVATING COIL
Movement of the steel ball is mediated by 2 activating coils,working alternatively to induce and maintain
a natural oscillation.
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When the start reagent is added,the detection and the chronometer start
immediately and simultaneously.
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As the ball oscillates left and right, the amplitude of the motion is measured.
The chronometer times the clotting of the sample.
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As the ball oscillates left and right, the amplitude of the motion is measured.
The chronometer times the clotting of the sample.
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Amplitude is monitored during the entire clotting process.The amplitude remains constant while no clot is present.
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As the clot develops the viscosity increases,and the amplitude decreases.
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Based on different algorithms, the chronometer is stoppedeven if the clot is weak, and even if the ball is not stopped.
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Maximum sensitivity for:
• Weak clots
• Fibrinogen testing linearity 1.5 to 9 g/L
• All clotting tests
Insensitivity to:
• Coloured plasmas • Haemolysed plasmas • Lipemic plasmas • Bilirubin • Turbid reagents
Standardisation:
• For each clotting process • For the entire range of
Stago analysers
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STart Max STA Compact Max
STA Satellite Max STA R Max
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Diagnostica Stago S.A.SRCS Nanterre B305 151 4093 allée Thérésa92600 Asnières sur Seine FrancePh. +33 (0)1 46 88 20 20Fax +33 (0)1 47 91 08 [email protected]
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