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Transcranial Magnetic Stimulator

Transcranial magnetic stimulation (TMS) is a noninvasive method to cause depolarization or hyper polarization in the neurons of the brain. TMS uses electromagnetic induction to induce weak electric currents using a rapidly changing magnetic field, this can cause activity in specific or general parts of the brain with minimal discomfort, allowing for study of the brain's functioning and interconnections. A variant of TMS, repetitive transcranial magnetic stimulation(rTMS) has been tested as a treatment tool for various neurological and psychiatric disorders including migraines, strokes, Parkinson's disease, dystonia, tinnitus and depression and auditory hallucinations.

Indications

Studies of the use of TMS and rTMS to treat many neurological and psychiatric conditions have as have stated the rTMS appeared to be effective in the treatment of major depression.

rTMS devices are marketed for the treatment of such disorders in Canada, Australia, New Zealand, the European Union, Israel and the United States.

There is evidence that rTMS can reduce chronic pain and change pain-related brain and nerve activity.

Other areas of research include the rehabilitation of aphasia and motor disability after stroke, tinnitus, Parkinson's disease, tic disorders, possibly PTSD and the negative symptoms of schizophrenia.

TMS uses electromagnetic induction to generate an electric current across the scalp and skull without physical contact. A plastic-enclosed coil of wire is held next to the skull and when activated, produces a magnetic field oriented orthogonal to the plane of the coil. The magnetic field passes unimpeded through activates nearby nerve cells in much the same way as currents applied directly to the cortical surface.

The path of this current is difficult to model because the brain is irregularly shaped and electricity and magnetism are not conducted uniformly throughout its tissues. The magnetic field is about the same strength as an MRI, and the pulse generally reaches no more than 5 centimeters into the brain unless using the Deep TMS variant of TMS] Deep TMS can reach up to 6 cm into the brain to stimulate deeper layers of the motor cortex, such as that which controls leg motion.

Two plastic-enclosed coil of wires arranged inside helmet, one side and the other on the right side which can be connected to the control box by a on output cord with three hold sockets end.

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