How Does Medtronic Deep Brain Stimulation Therapy Work?

Medtronic DBS Therapy involves the placement of a medical device (much like a pacemaker) and thin, insulated wires completely inside the body. DBS Therapy sends electrical signals to precisely targeted areas of the brain.

How DBS Therapy Can Manage Dystonia Symptoms*

Some dystonia symptoms are caused by abnormal messages sent by the brain. DBS Therapy sends electrical signals to the brain circuits that control movement.

These signals block some of the messages that cause disabling motor symptoms. This may help manage the symptoms of dystonia.

The Medtronic DBS Therapy System

The system has three parts that are implanted completely inside the body by a highly specialized neurosurgeon:

• Neurostimulator – The power source for the system. This small pacemaker-like device contains a battery and computer chip programmed to send electrical signals to manage dystonia symptoms.
• Lead (pronounced "leed") – A set of thin wires covered with a protective coating. It carries the stimulation signal to the electrodes that deliver the signal to the brain tissue. Part of the lead is implanted inside the brain. The rest of the lead is implanted under the skin of the scalp.
• Extension – An insulated wire placed under the scalp that connects to the lead and runs behind the ear, down the neck, and into the chest below the collarbone where it connects to the neurostimulator.

The deep brain stimulation system is programmed to meet your unique therapy needs. You may also be given a small controller that allows you to turn the system on and off.

Next: About the Procedure

*Humanitarian Device: The effectiveness of this device for the treatment of dystonia has not been demonstrated.