Figure 1
From: Metabolism during anaesthesia and recovery in colic and healthy horses: a microdialysis study
An illustration of the microdialysis catheter and infusion pump. The microdialysis catheter consists of a 600-mm-long inlet tube, a 90-mm-long double-lumen tube, and a 220-mm-long outlet tube to which the microvial is fastened. The double-lumen tube has a 60-mm-long shaft (0.9 mm in diameter) and a 30-mm tip (0.6 mm in diameter) where the outer layer consists of a polyamide dialysis membrane. The perfusate enters the catheter between the inner tubing and the outer dialysis membrane, allowing for the process of dialysis, the dialysate is subsequently transported away inside the inner tube to be collected in the microvial. The illustration was published with kind permission of CMA/Microdialysis AB, Solna, Sweden.