Gadgets work under your skin

LEFT your phone at home again? A solution is at hand: make sure it is with you at all times by having it implanted in your arm.

But given the opportunity, would you want your gadget to be a permanent part of you? The question may need answering sooner than you think.

Researchers at Autodesk, a software company in Toronto, Canada, checked to see whether the methods we currently use to interface with our gadgets work when the device is implanted in human tissue. The answer was a resounding "yes".

A button, an LED and a touch sensor all functioned appropriately when embedded under the skin of a cadaver's arm. The team was even able to communicate transcutaneously using a Bluetooth connection and charge the electronics wirelessly.

Would anyone want a piece of consumer electronics inside their body? There is something intrinsically creepy about the idea. Plus there is a risk that the device could malfunction and need to be removed, or that it could infect the surrounding tissue, not to mention the dystopian vision of a society in which our phones become tracking devices that we can never be free of.

Yet there are reasons for thinking that the cyborg future will come to be. The team, who worked with University of Toronto anatomist Anne Agur, says that medical risks such as infection need to be better understood before a device can be implanted into a living person. But it is a problem that manufacturers of existing implants, such as stents and replacement hips, have successfully tackled.

There are also clear benefits to implanted electronics. "The device is always there," says Holz. "You cannot lose it." And implants provide new interface methods. A gadget similar to a smartphone could provide a calendar alert by means of a gentle sub-skin vibration, for example.

And that creepy feeling? It is a common reaction now, but may lessen as people become familiar with the technology. The idea of using a machine to assist a human heart was once deemed unnatural, for example, but the insertion of a pacemaker is now a routine procedure.