Will be starting training on my new AV Graft in center, to do self cannulation at home. I've been asked by my dialysis nurse what kind of needles would I want to use. As I'm doing this in a Japanese hospital in Okinawa, there is sometimes communications problems or something gets lost in translation. I would like to use the buttonhole method, but will this work with a graft? I've tried to stay away from the needles, but after over 2 years my tunnel catheter has begun to fail, so I had to go into the hospital, and they ran one needle from the AV graft arterial and the other one to venous tunnel catheter. As I just had the AV graft worked on a few days ago, my surgeon didn't want me to start using it yet. Fortunately it worked. Any help with types of needles would really be a big help.