Investigation of blood-biomaterial interaction by means of a new quantitative dynamic measuring principle

In this study a new dynamic measuring chamber for flat biomaterials allowing the estimation of cell adhesion on test surfaces by measuring the cell lost from surface contacting test blood under defined rheological conditions is introduced. This was achieved by constructing a test chamber permitting the contact of small amount of blood with a large geometrical test surface. The construction consists of a spiral-shaped flow channel of 0.3 cm width, 0.02 cm height and 78 cm length. The applicability of the new method was demonstrated by evaluation of platelet adhesion on siliconized glass, fibrinogen coated glass, cuprophane and polyacrylnitrile.