External surface of a wound model

The utility model provides an external surface of a wound model, its structure includes bottle, pump, reactor and waste liquid bottle are deposited to the diffusate, the pump is used for carrying simulation wound exudate to the reactor, the reactor is used for carrying on the antibacterial activity evaluation test, the import of pump and diffusate are deposited and are linked together through diffusate conveying line between the bottle, and the delivery side of pump is being linked together of the compartment one -to -one through pump line and reactor respectively, and the outflow hole on the reactor is linked together through waste liquid outflow pipeline and waste liquid bottle. The utility model discloses can continuously supply with fresh nutrients to the microorganism to simulate the actual growth state of clinical surface of a wound microorganism, for the antibacterial activity evaluation of antibiotic dressing provides test platform, in order to reach scientific evaluation result.