Brain and Spine Implants
For diseases that cause uncontrollable movements, such as Parkinson’s disease, people had few options until scientists in the 1990s began experimenting with a technique called deep brain stimulation (DBS). Think of it like a cardiac pacemaker, but for the brain.
For the treatment, a surgeon inserts thin electrodes (wires) into specific areas of the brain that control movement. The surgeon then connects the electrodes to a battery-operated device and implants it beneath the collarbone. The device, which can be turned off or on with a remote control, then sends electrical pulses to the brain.
Research from 2021 shows that DBS offers significant long-term benefits for people with Parkinson’s disease, including the reduction of dyskinesia (involuntary movements) by 75 percent and a boosted quality of life. The study also found that DBS reduced the need for certain Parkinson’s medications by nearly 51 percent.
In addition to treating certain conditions, high-tech implants may also hold the power to curb serious public health concerns — like the opioid epidemic.
DBS doesn’t just help Parkinson’s disease, though. It’s also approved to treat epilepsy, obsessive-compulsive disorder, and other movement disorders.
As technology evolves, creating breakthroughs in battery designs and on-demand stimulation, DBS is expected to become even more effective. It may also be used to treat other types of conditions. Research looking at whether DBS implants could treat depression and dystonia in children with cerebral palsy is currently underway.
In addition to treating certain conditions, high-tech implants may also hold the power to curb serious public health concerns — like the opioid epidemic.
More specifically, researchers have developed small, thin devices (microelectrodes) that can be placed in the brain to combat severe pain. They work by blocking pain signals from reaching the cerebral cortex, ultimately silencing the sensation of pain.
A key 2021 study describes the use of these microelectrodes on rats. Researchers found significant changes in pain signals, along with positive behavioral changes. And unlike prescription opioid medications, the devices appeared to cause no side effects, potentially paving the way for safer treatments for chronic pain.
The findings are promising, but further study on humans will need to take place before microelectrodes become available for you and me.
In the meantime, researchers continue to investigate advanced remedies for chronic pain to help minimize opioid dependence. For example, spinal cord stimulation may help treat severe chronic back pain with the help of an implantable pacemaker-like device that’s connected to a remote control.
The implant is placed beneath a person’s skin, usually in the abdomen or near the buttocks. They can then use a remote control to send electrical impulses to the spinal cord when they’re feeling pain.
This changes the way the brain senses pain, replacing that sharp or achy discomfort with a more tolerable tingling sensation, according to Johns Hopkins Medicine. Some of the newest spinal cord stimulation devices even offer “sub-perception stimulation” — in other words, pain you can’t even feel.