Surgery patients are usually younger than 75 years old. If the patient is healthy, it is recommended to relax the age limit appropriately.
It is suggested that patients under 75 years old, with reasonable operation expectation, good health and more benefits can consider DBS brain pacemaker surgery.
As far as Medtronic's brain pacemaker is concerned, it can always work after implantation, but it needs battery power. Batteries are usually buried in the chest and connected to electrodes implanted in the brain through wires buried behind the ears. Batteries are generally divided into non-rechargeable and rechargeable. Non-rechargeable batteries have a certain capacity and can generally be used for about five years. After the battery is exhausted, it is only necessary to replace the stimulator implanted under the skin of the chest, while the electrode implanted in the brain does not need to be replaced. The rechargeable battery can be reused for 15 years. With the development of research, the service life of a single stimulator may be longer. 250,000 rechargeable batteries produced by Medtronic have been implanted all over the world. At present, there have been no battery-related failure events.
To sum up, generally speaking, normal replacement can be used for a lifetime.