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Fig. 5 | BMC Anesthesiology

Fig. 5

From: Application of a novel extracorporeal membrane oxygenation system in awake Hu sheep under various durations

Fig. 5

Observation of ECMO equipment after withdrawal and heparin coating staining: (A, B, C, D) Circuit tubing, hollow fiber membrane and pump head before staining; (E, F, G, H) Circuit tubing, hollow fiber membrane and pump head exhibited a fairly uniform bluish-purple coloration after staining with toluidine blue, indicating that the heparin coating was relatively intact

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