
Last week, the Food and Drug Administration
(FDA) announced that medical device company
Wicab is allowed to market a new device that
will help the blind “see.” The device, called the
BrainPort V100, can help the blind navigate by
processing visual information and
communicating it to the user through electrodes
on his tongue.
The BrainPort V100 consists of a pair of dark
glasses and tongue-stimulating electrodes
connected to a handheld battery-operated
device. When cameras in the glasses pick up
visual stimuli, software converts the information
to electrical pulses sent as vibrations to be felt
on the user’s tongue. Like most sensory
substitution devices, “seeing” with your tongue
may not be intuitive at first. But the researchers
who developed the device tested it over the
course of a year, training users to interpret the
vibrations. Studies showed that 69 percent of
the test subjects were able to identify an object
using the BrainPort device after a year of
training. However, the device is expensive;
Wicab told Popular Science that it will cost
$10,000 per unit, the same as its price when
first reported back in 2009.
Researchers have been fiddling with sensory
substitution for a long time, but most of these
devices are not yet widely available. The
BrainPort V100 will be on one of the first,
having passed the FDA’s review through
recently-updated guidelines called the premarket
review pathway: “a regulatory pathway for some
low- to moderate-risk medical devices that are
not substantially equivalent to an already
legally-marketed device,” according to the press
release. Since this device is now allowed to be
marketed and was approved relatively quickly
through these new guidelines
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