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[Presentation of a clinical hemoviscosimeter]
J C Lelièvre1, H Delgallo, C Lacombe
1Département de Biophysique, Université Paris VI.
Journal Des Maladies Vasculaires
|January 1, 1993
Summary
A new hemoviscosimeter automatically measures blood viscosity and elastothixotropic properties. This hemorheogram test provides clinicians with key blood rheology data in 15 minutes.
Area of Science:
- Biomedical Engineering
- Hemodynamics
- Rheology
Context:
- Blood rheology is crucial for understanding cardiovascular health.
- Accurate and efficient blood viscosity measurement is needed in clinical settings.
- Existing methods may be time-consuming or require large sample volumes.
Purpose:
- To present a novel, automated clinical hemoviscosimeter.
- To describe the methodology for generating a "hemorheogram" using the device.
- To outline the key hemorheological parameters obtained from the test.
Summary:
- A microcomputer-driven, Couette-type hemoviscosimeter was developed for automatic blood viscosity measurement.
- The protocol requires 1 ml of anticoagulated blood (45% hematocrit) at 37°C, yielding an elastothixotropic response.
- The 15-minute "hemorheogram" test provides absolute and relative blood viscosities, plasma viscosity, and a thixotropy index.
Impact:
- Enables rapid and automated assessment of blood rheology in clinical environments.
- Provides valuable hemorheological data to clinicians for improved patient diagnosis and management.
- Facilitates detailed laboratory analysis of blood viscoelastic properties.