A needless device that uses pressure to inject insulin. It seems complicated but maybe it isn't once you get used to it.
http://www.insujet.com/index.php?m=how-to-use
Wow, are these still around? I know they came out in the 80s. I think people had problems with thickening of the skin at the site of injections. And you could still bleed a bit too. I don't think it ever really took off as a technology and I don't think it was that successful except for people that had a real fear of needles. I think the pens have pretty much taken over that potential market.
Cora
Yeah, they didn't work well and still hurt. Don't know if you can get them anymore.