ON-Q System NRFit®

Elastomeric Pain Relief Pump System

The ON-Q NRFit® Pain Relief System is a pain management solution that has been clinically proven to reduce pain and opioid consumption in a range of surgical specialties.

The elastomeric pump versions are available in a variety of fill volumes and flow rate options providing post-operative pain relief.

The ON-Q System with SELECT-A-FLOW (SAF) allows to change the flow rate according to the individual need of the patient.

The ON-Q System with Bolus (ONDEMAND) delivers a continuous infusion (basal) and allows fixed boluses to be delivered on demand by patient.


With the ON-Q Pain Relief System, patients

  • Were discharged 1.1 days sooner, on average (1,4,10,11,12
  • Reported up to 69% lower pain scores (5,11)
  • Were up to 3x as likely to report high satisfaction scores (1,2,14)
  • Are more likely to experience better pain management with fewer side effects (2,3,4)

Benefits of Bolus System:

  • Single press delivery button
  • Easy to read reservoir fill indicator
  • Ergonomic bolus design

Benefits of SELECT-A-Flow:

  • Variable flow rate controller (1-7 ml/h or 2-14ml/h version)
  • Removable key for tamper resistance
  1. D1. Liu SS, Richman JM, Thirlby RC, Wu Cl. Efficacy of continuous wound catheters delivering local anaesthetics for postoperative analgesia: a quantitative and qualitative systemic review of randomized controlled trials. J Am Coll Surg. 2006;203(6):914-932.
  2. Beaussier M, El’Ayoubi H, Schiffer E, et al. Continuous preperitoneal infusion of ropivacaine provides effective analgesia and accelerates recovery after colorectal surgery. Anesthesiology. 2007 (France); 107(3):461-468.
  3. Forastiere E, Sofra M, Giannarelli D, Fabrizi L, Siomne G. Effectiveness of continuous wound infusion of 0.5% ropivacaine by On-Q pain relief system for post operative pain management after open nephrectomy. Br J Anaesth. 2008 (UK);101(6):841-847.
  4. Cansler V, B2B Team. Patient Pain Survey/GMR&A Summary. Study: 26199. July 2012.
  5. Sherwinter DA, Ghaznavi AM, Spinner D, Saval RH, Macura JM, Adler H. Continuous infusion of interperitoneal bupivacaine after laparoscopic surgery: a randomized controlled trial. Obes Surg. 2008;18(12):1581-1586.
  6. Ahmad M, Mandadi G, Paintsil J, Hager H, Pestel G. Local anesthetic infiltration increases subcutaneous tissue oxygenation after lower abdominal surgery. Paper presented at: American Society of Anesthesiologists Annual Meeting; October 2004; San Fransisco, CA.
  7. Wang J, Barke RA, Charboneau R, Roy S. Morphine impairs host innate immune response and increases susceptibility to Streptococcus pneuominae lung infection. J Immunal. 2005;174(1):426-434.
  8. The Source, The Joint Commision. The Fith “Vital Sign”. November 2012.
  9. Rothwell M, Pearson D, Wright K, Barlow D. Bacterial contamination of PCA and epidural infusion devices. Anesthesia. 2009; 64(7):751-753.
  10. Singh J, Hum M, Cohen S, et al. Multicenter infections surveillance study, Comparing two types of post operative pain management, surgical site using On-Q* SILVER SOAKER* and local anesthetics vs. systemic narcotics following colorectal procedures. Presented at the 47th Annual interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC), Chicago IL. September 2007.
  11. White PF, Rawal S, Latham P, et al. Use of continuous local anesthetic infusion for pain management after median sternotomy. Anesthesiology. 2003;99(4):918-923.
  12. Dowling R, Thielmeier K, Ghaly A, Barber D, Boice T, Dine A. Improved pain control after cardiac surgery: results or a randomized, double-blind, clinical trial. J Thorac Cardiovasc. Surg. 2003;126(5):127-1278.
  13. Zimberg SE. Reducing pain and cost with innovative post operative pain management. Manag Care Q. 2003;11(1):34-36.
  14. Heller L, Kowalski AM, Wei C, Butler CE. Prospective, randomized, double-blind trial of local anesthetic infusion and intravenous narcotic patient-controlled anesthesia pump for pain management after TRAM fl ap breast reconstruction. Plast Reconstr Surg. 2008;122(4):1010-1018.