I have not heard of it but then I don't know of anyone with a swollen legs problem. I believe my original advice is still the way to go. You need to find out
why your legs are swelling. Getting any device for the lonr reason of treating your swollen legs is only treating the symptom, not the cause. Swollen legs could be a sign of heart disease or kidney disease or other health problems. Only medical tests can show you and the doctor what is causing the swelling. I hope you are able to see that specialist as soon as possible. If I were you I would insist on an immediate appointment and if this one that your doctor is recommending can't see you this week, then find one yourself. This is my opinion and I'm not a doctor.
Here's a link to the Mayo Clinic's page about
this:
http://www.mayoclinic.com/health/leg-
swelling/MY00592/DSECTION=causesEnJOY, what has your blood sugar been for morning fasting and post prandial?