What is the name of the pump that they use to get rid of an infection in nursing homes??

I have a friend in a nursing home that has some sores that are not healing or healing slowly. They are using a pump to pump his bodily fluids into a filter to get rid of the infection. The nurse told me this technology has been out for ten years. Does anyone know what it is called?
Thank you,
TomS

mildred f2013-09-18T08:42:18Z

If it is attached to the wound it is a wound vac.