SynchroMed™ II Intrathecal Pump Intrathecal Drug Infusion System for Chronic Pain Management

The SynchroMed™ II programmable, implantable pump delivers drug to the intrathecal space via an implanted catheter. SynchroMed™ II pumps can be managed using the Control WorkflowSM approach, which is designed to help eliminate systemic opioids and provide effective pain relief.

 SynchroMed™ II Intrathecal Pump


Discover the SynchroMed™ II Pump

Targeted drug delivery is a safe, proven, and effective way to manage chronic pain with fewer side effects and lower doses than systemic medication.1

Watch the animation to learn more. (2:24)

How SynchroMed™ II Works

The drug enters the pump through the reservoir fill port and passes through the reservoir valve and into the SynchroMed™ II pump reservoir. At normal body temperatures, pressurized gas that is stored below the reservoir expands, exerting pressure on the reservoir. The pressure helps advance the drug into the SynchroMed™ II pump tubing.

The peristaltic action of the SynchroMed™ II pump moves the drug from the pump reservoir, through the pump tubing, check valve, catheter access port, and implanted catheter, to the infusion site.

The catheter access port (CAP) allows injection of the drug into the implanted catheter for drug administration and diagnostic purposes. Drug injected into the CAP bypasses the SynchroMed™ II pump mechanism and goes through the catheter port into the implanted catheter to the infusion site.

More SynchroMed™ II Videos

Discover the benefits of targeted drug delivery. (4:01) - (04:01)

Learn about trialing and long-term patient management. (8:24) - (08:24)


SynchroMed™ II Pump

  • Offered in two sizes (20 mL or 40 mL) to create efficient refill intervals
  • Designed to last up to 7 years at up to 0.9 mL/day flow rate
  • Precisely delivers drug with ± 0.3% day-to-day repeatability
  • Offers simple, safe, efficient MRI workflow
  • Allows for full-body access to 1.5 and 3.0-Tesla MRI*
    • Pump is designed to stop programmed therapy during an MRI scan.
    • Pump is designed to resume programmed therapy after an MRI scan
    • By avoiding the need for the reservoir to be emptied prior to MRI, drug remains in the reservoir, minimizing drug waste, and reducing procedural steps.


Ports and suture loops on the SynchroMed™ II infusion pump

Ascenda™ Catheter

  • Available in two lengths
  • Flexible construction with the ability to trim to the desired length
  • Unique four-layer construction for compression resistance
  • Sutureless connector

Close up of the Ascenda catheter.


Clinician Programmer

The SynchroMed™ II Clinician Programmer provides a simple, guided workflow approach to programming SynchroMed™ II intrathecal pumps.

myPTM™ Personal Therapy Manager

The myPTM™ Personal Therapy Manager works with the SynchroMed™ II pump to help alleviate unpredictable pain.


Efficio™ Management Software

EfficioTM management software is designed to simplify your pump practice by offering efficient schedule planning, simple drug tracking, historical dosing insights, and on-demand access to reports.


Model Battery Life

8637-20 (20 mL reservoir)

4 to 7 years

8637-40 (40 mL reservoir)

4 to 7 years

Product Support

U.S. Clinician Services


Find educational tools and resources at Medtronic Academy. Learn more about the Dr. Lisa Stearns Academy for treating cancer pain.


MR Safety Triangle Under specific conditions for 1.5 T and 3.0 T MRI scans. Requires interrogation to confirm pump status.

Requires interrogation to confirm pump status.


Hamza M, Doleys D, Wells M, et al. Prospective study of 3-year follow-up of low dose intrathecal opioids in the management of chronic nonmalignant pain. Pain Med. 2012;13:1304-1313.