Negetive pressure wound therapy device with primary and auxillary systems

摘要

A negative pressure wound therapy apparatus can include a first source of negative pressure and a first power source, the first source of negative pressure configured to supply, via a fluid flow path, negative pressure to a wound covered by a wound dressing, and the first power source configured to provide electrical power to the first source of negative pressure. The negative pressure wound therapy apparatus can further include a second source of negative pressure and a second power source, the second source of negative pressure configured to supply, via the fluid flow path, negative pressure to the wound, when the first source is not supplying negative pressure to the wound, and the second power source configured to provide electrical power to the second source of negative pressure, the second source of negative pressure being different from the first source of negative pressure.