Figure 1From: Demonstration of a novel technique to quantitatively assess inflammatory mediators and cells in rat knee jointsThe perfusion needles and the perfusion system managing inflow and outflow from the knee joint space. A Watson-Marlow pump controlled the rate of saline infusion and sample extraction (100 μl min-1) from the joint. After the knee was secured to prevent movement of the limb, needles were inserted into the knee joint through the patella tendon.Back to article page