Fig. 1From: Comparison of biological and mechanical properties of different paranasal sinus mucosa in goatSelf-made clamp device. A harvested square mucosa were placed between two self-made clamps. B the self-made clamp was carefully sealed with the screw. C the vertical downward pressure was applied evenly to the central mucosa exposed by the inner ring of the clamp. A force gauge was placed on the thrust end to record the pressure givenBack to article page