Unlike medications that circulate throughout your body in your bloodstream, drug delivery therapy releases medication directly into the fluid surrounding your spinal cord, which may lead to fewer or more tolerable drug side effects.
The system consists of a pump and catheter, both of which are surgically placed under the skin. The pump is a round device that stores and delivers pain medication. It is placed in your abdomen. The catheter (a thin, flexible tube) is inserted into your spine and connected to the pump.
During the surgery, your doctor fills the pump with pain medication using a needle. The pump sends the medication through the catheter to the spinal area where pain receptors are located. You return to your doctor’s office for more medicine when the pump needs to be filled.