VNS



A new pocket-watch-sized device that is also called as ‘a pacemaker for the brain’ is developed to provide better treatment to the patients of depression. FDA has been approved it eight months before and since then more than 550 Americans have implanted a vagus nerve stimulator (VNS) in their chests to stimulate parts of brain



Cyberonics, the manufacturer of the device are waiting for the approval of the insurance companies for the operation of seven thousand another people who are in the list.



VNS is the first device to get approval provided another options to patients whose severe depression is not treated by psychotherapy or even shock treatments.



The device is a battery-operated generator attached to an electrode implanted in the vagus nerve in the neck.



The generator releases constant electric pulses. The pulses stimulate serotonin and some other brain chemicals that are supposed to normalize mood.



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