Help with bone growth stimulator

Hi
I have a non union of fractured femur, I have been looking at buying a bone growth stimulator on ebay, my problem is that I need to know how much time is left on the stimulator, can anyone help me with this please. My medical insurance does not cover me for this, hence I need to buy a used one myself

Pulsed electromagnetic field therapy (PEMFT) has been used for decades to assist delayed fracture healing. We used to have someone on it almost all hours of the day when I worked in a large state athletic practice in Sydney. I have always wanted one for the clinic in London although I would only have a rare occasion to use it here. They typically set you back a few thousand £'s. Maybe you are looking at a different device as the one I have has no time limit as such on it. It is plug it in, wrap it around the limb and read the paper.

I found this link on the web although I have not read it to see if it in itself is a marketing tool - Buyer's Guide to Pulsed Electromagnetic Fields (PEMF) - Dr. Pawluk