The company Microtransponder have created a prototypal wireless neurostimulation device which it claims will potentially reverse the effects of chronic pain and tinnitus.

The device, which is reportedly smaller than a grain of rice, is implanted underneath the skin and delivers small electrical jolts to reprogram nerve impulses associated with pain and tinnitus. It is currently in the early stages of clinical research and has only been tested in rats [[i]].   

 The CEO of Microtransponder, Will Rosellini, recently testified as to the potential of the device in front of the US House of Representatives. You can see a video of this testimony at:

http://www.youtube.com/watch?v=u9FAi1CmGIc&feature=channel