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System transfers power to devices INSIDE the body: Scientists say technique could lead to a new era in ‘electronic medicine’
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System transfers power to devices INSIDE the body: Scientists say technique could lead to a new era in ‘electronic medicine’
- Device uses a new way to control electromagnetic waves in humans
- Special type of wave changes in character when moving from air to skin
- The technology could lead to the creation of ultra-small medical devices
- Known as ‘electroceuticals’, these devices may be more effective than drugs for some disorders, such as those affecting parts of the brain
A method of wirelessly transferring power to devices embedded deep in the body could lead to a new era of ‘electronic medicine’, say researchers.
The technology developed in California could eliminate the bulky batteries and clumsy recharging systems that hinder wider use of medical implants.
After successfully powering a tiny heart pacemaker in a rabbit, the system is now being prepared for human trials.
A method of wirelessly transferring power to devices embedded deep in the body could lead to a new era of ‘electronic medicine’. The pacemaker device created by the scientists (pictured) could be powered or recharged wirelessly simply by holding a credit card-sized power source outside the body.
The hope is that it will assist the development of ultra-small devices that can be used instead of drugs to treat disease or control pain.
Known as ‘electroceuticals’, these device may be more effective than drugs for some disorders, such as those affecting specific regions of the brain.
The pacemaker device created by the scientists was smaller than a grain of rice and could be powered or recharged wirelessly simply by holding a credit card-sized power source outside the body.
‘We need to make these devices as small as possible to more easily implant them deep in the body and create new ways to treat illness and alleviate pain,’ said electrical engineer Dr Ada Poon, from Stanford University, who invented the technology.
The hope is that it will assist the development of ultra-small devices that can be used instead of drugs to treat disease or control pain. Researchers claim these devices may be more effective than drugs in some instances
The wireless power system involves a new way to control electromagnetic waves inside the body.
Dr Poon designed a power source that generated a special type of wave which changed in character when it moved from air to skin.
Contact with the body allowed it to propagate, like sound waves through a railway track.
Tests showed that the system fell well below the safety limits for human exposure to electromagnetic radiation.
Details of the research appear in the journal Proceedings of the National Academy of Sciences.
A method of wirelessly transferring power to devices embedded deep in the body could lead to a new era of ‘electronic medicine’. The technology developed in California could eliminate the bulky batteries and clumsy recharging systems that hinder wider use of medical implants, such as pacemakers (pictured)
Commenting on the development, neurobiologist Professor William Newsome, director of the Stanford Neurosciences Institute, said: ‘To make electroceuticals practical, devices must be miniaturised, and ways must be found to power them wirelessly, deep in the brain, many centimetres from the surface.
‘The Poon lab has solved a significant piece of the puzzle for safely powering implantable microdevices, paving the way for new innovation in this field.’
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