Wound therapy device

Wound therapy device (20, 40, 50, 60) for the treatment of wounds by means of negative pressure and fluid irrigation, comprising

• i. a negative-pressure dressing (15) with a fluid-tight cover, such that a wound space can be formed between the cover and the wound base,
• ii. a pressure sensor means (2), which can generate pressure measurement values, wherein the pressure sensor means (2) is in fluidic communication with the wound space,
• iii. a drainage container (1) for collecting liquid,
• iv. a drainage line (3) by means of which liquid can be conveyed from the wound space into the drainage container (1),
• v. a first pump unit (4) for aspirating liquid from the wound space via the drainage line (3), wherein the first pump unit (4) is connected in a fluid-conducting manner to the drainage container (1),
• vi. an instillation container (7) for making available an instillation fluid,
• vii. an instillation line (8) by means of which instillation fluid can be delivered from the instillation container (7) into the wound space,
• viii. a means for delivering an instillation fluid from the instillation container (7) into the wound space,
• ix. a control means (5), wherein the control means (5) can receive pressure measurement values from the pressure sensor means (2),
• characterized in that
• x. when a predefined upper negative-pressure threshold value is reached in the wound space, the control means can output a signal to switch off the first pump unit (4), and
• xi. when a predefined lower negative-pressure threshold value is reached in the wound space, the control means can output a signal to interrupt the delivery of the instillation fluid.