The implantable Pulse Generator (IPG) is a battery powered electronic device that generates electric pulses that can be used by spinal cord stimulation devices to control pain. It is one of the items in a spinal cord stimulation system. Spinal cord stimulation is a pain management therapy used to control chronic back pain.
As the name implies, the IPG is implanted. The device is connected to leads that are placed, with the help of fluoroscopy, into the epidural space, next to the spinal cord. Signals from the device are transmitted to the spinal cord via the leads, resulting in replacement of pain with a more mild sensation known as paresthesia.
There are two types of IPGs. The first, and older type is the non-rechargeable. When the battery runs out in a non-rechargeable IPG, you must go to your pain doctor and have a procedure to replace it. In contrast, the newer rechargeable implantable pulse generators allow you to recharge the battery yourself. Of course, this feature will only last as long as the battery does. When the battery expires, you will need a surgical procedure to get a new one. The battery life of the rechargeable IPGs can be up to 10 years, depending on brand and model.
