Exclusion criteria | |
---|---|
1. Pregnancy, breast feeding, plan to be pregnant, or unwilling to use contraceptive methods | |
2. Bleeding complications or coagulation disorders | |
3. Severe mental or cognitive disorders, cannot cooperate during surgery and post-operative programming | |
4. Life expectancy less than 1 year | |
5. Need therapy or examination that could not be implanted with IPG (e.g., MRI, thermo-therapy) | |
6. Pain reduction less than 50% during the trial period or cannot tolerate SCS | |
7. Other inappropriate situations determined by investigators |