Deep Brain Stimulation (DBS) is taking off and will be part of the main treatment for brain diseases such as movement disorders, epilepsy, psychiatric diseases and many others. There is a need for more sophisticated devices that can do more in one penetration, not just stimulate. Once there is a probe in the brain, it is used for multiple passive measurements, without harming the brain further. It provides better understanding the brain and real time closed loop improved treatment. An apparatus and method are disclosed, which allow simultaneous monitoring of multiple parameters inside the human brain, such as: pH, temperature, pressure, seizure activity (EEG), degree of metabolism, oxygen tension in the brain, degree of excitotoxicity and others. The ability to measure those parameters during treatment and stimulation procedures makes the difference between success and failure of the patient.
