Check this out! this could be phenomenal! with this technology, stem cells can be put exactly where the damage is!!
http://mrbrunches.lefora.com/2008/12/15/surgical-device-invented-in-halifax-nova-scotia-tr/page1/
http://mrbrunches.lefora.com/2008/12/15/surgical-device-invented-in-halifax-nova-scotia-tr/page1/