My husband had a Medtronic pump implanted at Mayo in 2016 for late-stage cancer pain involving pathologically fractured ribs. The medicine they chose for him was morphine. The surgery was terribly hard on him and was to be a simple outpatient procedure, but he spent 4 days in the hospital, unable to recover from the general anesthesia. The morphine gave him little if any relief and finding a practitioner outside of the Mayo network to manage the dosage was nearly impossible. His health declined rapidly after the surgery and he lived for less than two months after that. I deeply regret putting him through that and have nothing positive to say about his experience with the pump. I hope others are having better results. The concept is good, though, but it's not for everyone.