The wound vac has arrived.
Tomorrow, we'll make the trek to see the surgeon at noon, and then, when we get home, the nurse will come and "install" the wound vac.
I am still not sure exactly how it works, but I do hope it works. There will be some relief from twice daily dressing changes. Perhaps it will help to reduce His pain and improve His general sense of well-being. I sure hope so.
Here's the link to the video I found about what this beast is supposed to do: