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저희 MCIK는 최근 미국 Texas 주의 Austin에 위치하고 있는 Vilastic Scientific Inc. 사와 Official Exclusive Distributor in Korea 로써 공식 대리점 계약을 체결하여 2008년 7월부터 한국내에서도 Vilastic Scientific Inc. 사의 정밀 기기 판매가 가능 해졌습니다. "Vilastic Viscoelasticity Analyzers are the most sensitive instruments V-E System for Industrial Rheology BioProfiler for Blood and Plasma Rheology Vilastic-3 for Biofluid Rheology Vilastic V-E SYSTEM A unique instrument with the ability to perform precise measurements of viscosity and elasticity of ultra thin fluids--the consistency of water--as well as thicker fluids. Small footprint, small sample size, controlled thermal environment and portability all add versatility and power to this instrument. Use the V-E SYSTEM to explore the properties of your liquid by measuring both the viscosity and elasticity over a wide range of values of frequency, shear stress, shear rate, shear strain, time and temperature. Once you select a measurement protocol, you can repeat it at any time with high precision because the unvarying geometry of the V-E SYSTEM eliminates the mechanical adjustments and dimensional inaccuracies of traditional rotational instruments. Computer controlled protocols and data processing mean precisely timed measurement sequences, high volume of measurements and disk storage of all results. FEATURES Broaden and deepen your view of rheology with System Enhancements for extensional viscoelasticity, electrorheology, porous media and microcapillaries. Vilastic Scientific presents the BioProfiler, the only rheometer dedicated to measurements of blood viscoelasticity and plasma viscosity with the sensitivity beyond the capability of conventional rotational rheometers. By measuring both the viscosity and elasticity, the BioProfiler gives physiologically significant characterization of the dynamic flow properties of blood*. Because blood flow in the circulation is pulsatile, the heart pumps energy into the blood with each beat. Portions of this energy are either dissipated or stored as the blood cells rearrange, orient and deform in order to pass through the circulation. Viscosity is an assessment of the rate of energy dissipation due to cell deformation and sliding. Elasticity is an assessment of the elastic storage of energy primarily in the kinetic deformability of the red blood cells. Together, the viscosity and elasticity determine the pressure required to produce blood flow. The relative influence of aggregation tendency and kinetic elastic cell deformability on blood viscoelasticity changes with shear rate (see our Tech Note). The viscosity and elasticity of blood are direct indicators of how these parameters affect the ability of the blood to flow under the shear conditions imposed by the pulsatility of the circulation. Therefore, in order to provide a complete picture of hemorheology, the BioProfiler measures the viscoelasticity for oscillatory flow over a range of shear rates. Shear Rate Sweep Protocol for Comprehensive Characterization Critical Three Point Protocol for Simple and Rapid Characterization Low-Shear Region Mid-Shear Region The red cells are strongly aligned to form layers that slide on adjacent plasma layers. The viscoelasticity is strongly influenced by cell deformability because this property limits the ability of the cell to conform to layers. Less deformable cells form thicker cell layers with thinner plasma layers, thus increasing both viscosity and elasticity. The Critical Three Point Protocol simplifies the viscoelastic profile using three rapid measurements at fixed strains in the low, mid and high shear region. By sampling the viscoelastic properties of the blood in each region, simple numberical characterization of the effects of aggregation and dynamic deformability can be used for statistical studies and montiroing progressive hemorheological changes. These critical measurements are automatically tabulated at the native hematocrit and projected to a hematocrit of 45%, with temperature projections to 25 ?C and 37 ?C. The ASCII output option exports data from several samples into one file, which is compatible with most spreadsheet programs. VILASTIC-3 Viscoelasticity Analyzer Explore the properties of your bio-fluid by measuring both the viscosity and elasticity over a wide range of values of frequency, shear stress, shear rate and shear strain. Rapid sample change with minimal possible contact between the fluid and operator. Uses water as calibration fluid, a universal standard readily available at no cost FEATURES |
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