ON-Q* C-Bloc with SELECT-A-FLOW* and ONDEMAND*Recalls & reported problems across all models

We found 2 models of ON-Q* C-Bloc with SELECT-A-FLOW* and ONDEMAND* by Avanos Medical, Inc. in the FDA's device registry (GUDID). Together they are named in 26 adverse event reports in the FDA's MAUDE database, received between Jun 19, 2020 and Sep 11, 2026 — classified as 4 injuries, 22 malfunctions.

The most frequently reported specific device problem is “Excess Flow or Over-Infusion” (12 reports).

Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event. Widely used products collect more reports, so totals can't be used to compare products or estimate failure rates. Only reports that name a model's exact device identifier are counted. What reports can and can't tell you · How this data works

Most reported ON-Q* C-Bloc with SELECT-A-FLOW* and ONDEMAND* problems

ON-Q* C-Bloc with SELECT-A-FLOW* and ONDEMAND* models

2 models, most reported first. Each model has its own page with its reports, recalls and device details.

• ON-Q* C-bloc with SELECT-A-FLOW* and ONDEMAND* 13474

  Pump, infusion, elastomeric
  20 reports
• ON-Q* C-Bloc with SELECT-A-FLOW* and ONDEMAND* 13473

  Pump, infusion, elastomeric
  6 reports

Recent ON-Q* C-Bloc with SELECT-A-FLOW* and ONDEMAND* adverse event reports

The 15 most recent reports across all models, in the reporter's own words as published by the FDA.

• MalfunctionSep 11, 2026Physical Resistance/Sticking

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 50739508 ↗
• InjurySep 1, 2026Infusion or Flow Problem

  Patient problems: Pain

  MAUDE report 50543580 ↗
• InjuryAug 7, 2026Key or Button Unresponsive/not Working

  Fill Volume: Unknown.Flow Rate: Unknown. Procedure: Right tri-malleolar ankle open reduction andinternal fixation.CathPlace: Unknown.Date of procedure: (b)(6)2024.It was reported the patient was admitted for right tri-malleolar ankle open reduction and internal fixation surgery with a physician. Prior to the surgery, the patient was treated by anesthesiologists. The patient was recommended by the anesthesiologists to consent to the placement of a disposable pain pump ¿ "ON-Q Pain Relief System" ¿ to manage patient's post-operative pain.Prior to surgery, the physician performed the peripheral nerve block and catheter placement at the popliteal nerve on the patient's right leg. The placement of the block and catheter was done under ultrasound guidance. At the time of the placement of the block and catheter, the patient verbalized to the anesthesiologists of feeling a sharp sensation at the location of the block and catheter. A physician, who was overseeing the procedure, instructed the anesthesiologist to "back out" the needle /catheter when this occurred. These events were not reported or referenced in the patient's medical records. Following the procedure, patient was discharged ho

  Patient problems: Nerve Damage

  MAUDE report 50180741 ↗
• MalfunctionJul 27, 2026Physical Resistance/Sticking

  It was reported the "bolus button pops up immediately after pressing. Orange indicator is in the bottom location and not rising. Advised to close clamp on tubing. States anesthesiologist contact is not on his discharge instructions. Told to call hospital and request to talk to anesthesiologist on call." The patient did not want to call hospital because patient states they would not call patient back. Followed up with patient and patient confirmed calling hospital and was "waiting for a return call." There was no reported injury. Additional information received on 01-Jul-2026 stating the patient was able to get the pump replaced at the hospital and no longer has the device.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 50011883 ↗
• MalfunctionApr 11, 2025Improper Flow or Infusion; Improper Flow or Infusion

  AVANOS MEDICAL INC. RECEIVED A SINGLE REPORT THAT REFERENCED TWO DIFFERENT INCIDENCES, WHICH WERE ASSOCIATED WITH SEPARATE UNITS, INVOLVING ONE PATIENT. THIS IS THE FIRST OF TWO REPORTS. REFER TO 2026095-2025-00008 FOR THE SECOND REPORT. FILL VOLUME: 545 ML FLOW RATE: UNKNOWN PROCEDURE: UNKNOWN CATH PLACE: UNKNOWN INFUSION START TIME: UNKNOWN. INFUSION STOP TIME: UNKNOWN. IT WAS REPORTED, ¿A PATIENT WAS CONTINUING TO HOLD THE BOLUS BUTTON DOWN AND WHEN INSTRUCTED TO RELEASE IT STAYED IN THE LOCKED POSITION. THE ACCOUNT HAS SOME CONCERNS THAT THE BOLUS BUTTON CAN BE HELD AND CONTINUE TO DELIVER A HIGHER/ LOWER VOLUME (NOT A TRUE LOCKOUT) THAN THE 5ML/ 30 MIN. CONFIRMED WITH THE ACCOUNT THAT THE BOLUS IS READY EVERY 30 MIN WHEN THE ORANGE LINE INDICATOR IS AT THE TOP OF THE SIDE WINDOW." PER NOTE RECEIVED WITH SAMPLE RETURN ON 26MAR2025, ¿ON DEMAND CONTROL NOT LOCKING PATIENT OUT. ABLE TO GIVE DOES, THEN GIVE AGAIN. I PUSHED IT WHEN NOT CONNECTED TO PATIENT AND IT BLOUSED AROUND 3-5 ML 10 MINUTES AFTER LAST DOES. PATIENT GOT APPROXIMATELY 10ML BOLUS WITHIN 45 MINUTES.¿

  Patient problems: Insufficient Information

  MAUDE report 21830597 ↗
• MalfunctionApr 11, 2025Improper Flow or Infusion; Improper Flow or Infusion

  AVANOS MEDICAL INC. RECEIVED A SINGLE REPORT THAT REFERENCED TWO DIFFERENT INCIDENCES, WHICH WERE ASSOCIATED WITH SEPARATE UNITS, INVOLVING ONE PATIENT. THIS IS THE SECOND OF TWO REPORTS. FILL VOLUME: 545 ML, FLOW RATE: UNKNOWN, PROCEDURE: UNKNOWN, CATHPLACE: UNKNOWN, INFUSION START TIME: UNKNOWN, INFUSION STOP TIME: UNKNOWN. IT WAS REPORTED, ¿A PATIENT WAS CONTINUING TO HOLD THE BOLUS BUTTON DOWN AND WHEN INSTRUCTED TO RELEASE IT STAYED IN THE LOCKED POSITION. THE ACCOUNT HAS SOME CONCERNS THAT THE BOLUS BUTTON CAN BE HELD AND CONTINUE TO DELIVER A HIGHER/ LOWER VOLUME (NOT A TRUE LOCKOUT) THAN THE 5ML/ 30 MIN. CONFIRMED WITH THE ACCOUNT THAT THE BOLUS IS READY EVERY 30 MIN WHEN THE ORANGE LINE INDICATOR IS AT THE TOP OF THE SIDE WINDOW.¿ PER NOTE RECEIVED WITH SAMPLE RETURN ON 26MAR2025, ¿ON DEMAND CONTROL NOT LOCKING PATIENT OUT. ABLE TO GIVE DOES, THEN GIVE AGAIN. I PUSHED IT WHEN NOT CONNECTED TO PATIENT AND IT BLOUSED AROUND 3-5 ML 10 MINUTES AFTER LAST DOES. PATIENT GOT APPROXIMATELY 10ML BOLUS WITHIN 45 MINUTES.¿

  Patient problems: Insufficient Information

  MAUDE report 21830455 ↗
• MalfunctionAug 22, 2024Excess Flow or Over-Infusion; Excess Flow or Over-Infusion

  FILL VOLUME: UNKNOWN, FLOW RATE: 6ML/HR. PROCEDURE: UNKNOWN, CATHPLACE: UNKNOWN. IT WAS REPORTED, THE PUMP WAS COMPLETELY EMPTY AFTER ONE DAY. NO CLINICAL'S SIGNS OF LOCAL ANESTHETIC TOXICITY. ON (B)(6) 2024 [THE PHYSICIAN] SPOKE TO A PATIENT AT HOME WITH AN ONQ IN PLACE: [THE PATIENT] SAID THE PUMP HAD BEEN REPLACED THE DAY PRIOR BEFORE [THE PATIENT] WAS DISCHARGED, AND THAT ON THE (B)(6) IT WAS COMPLETELY EMPTY. [THE PATIENT] SAID THE INSIDE OF THE BLACK BAG WAS DRY, AND [THE PATIENT] CLOTHING/BEDDING WAS ALSO DRY, LEADING [THE PHYSICIAN] TO THINK IT WAS NOT AN EXTERNAL LEAK. [THE PATIENT] ... CLICKED THE BUTTON ABOUT [THREE TIMES] TOTAL BETWEEN LEAVING THE HOSPITAL AND [THE PHYSICIAN] CALL ABOUT 24 HOURS LATER. [THE PHYSICIAN] ASKED [THE PATIENT] TO RECHECK THE RATE AND [THE PATIENT'S SPOUSE] NOTED THE RATE WAS SET AT 6ML/HR. [THE CLINICAL TEAM] FOLLOWED UP CLOSELY AND [THE PATIENT] HAS DONE WELL CLINICALLY WITHOUT ANY CONCERN FOR LOCAL ANESTHETIC TOXICITY, BUT IT IS STILL CONCERNING IF THE PUMP INDEED RAN THAT FAST." THE WAS NO REPORTS OF INJURY OTHER THAN DELAY IN TREATMENT.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 20035213 ↗
• MalfunctionJan 5, 2024Failure to Reset; Improper Flow or Infusion; Failure to Eject; Failure to Reset; Improper Flow or Infusion; Failure to Eject

  FILL VOLUME: 545 ML. FLOW RATE: UNKNOWN. PROCEDURE: UNKNOWN. CATHPLACE: UNKNOWN. INFUSION START TIME: UNKNOWN. INFUSION STOP TIME: DECEMBER 15, 2023. IT WAS REPORTED, THE BUTTON GOT STUCK DOWN AFTER THE PATIENT PRESSED IT. IT RESULTED IN THE PATIENT BEING ADMITTED TO THE EMERGENCY DEPARTMENT BECAUSE THE DRUG CONTINUED TO INFUSE, AND THE PATIENT'S ARM WENT NUMB. PATIENT¿S HUSBAND CUT THE LINE TO END THE INFUSION. NO MEDICAL INTERVENTIONS REPORTED. PER ADDITIONAL INFORMATION RECEIVED 19DEC2023, PATIENT PUSHED THE BUTTON AND IT REMAINED STUCK IN PUSH [DOWN] POSITION. A FEW MINUTES LATER, HER ARM WAS GETTING PROGRESSIVELY NUMB AND WEAK. PATIENT'S HUSBAND THEN USED SCISSORS TO CUT THE TUBING OF THE PUMP. THE CATHETER WAS REMOVED IN THE EMERGENCY DEPARTMENT AROUND 2AM.

  Patient problems: Alteration in Body Temperature; Inadequate Pain Relief; Muscle Weakness/Atrophy; Numbness; Tachycardia

  MAUDE report 18455538 ↗
• MalfunctionNov 15, 2023Excess Flow or Over-Infusion; Excess Flow or Over-Infusion

  AVANOS MEDICAL RECEIVED A SINGLE REPORT THAT REFERENCED FOUR DIFFERENT INCIDENCES, WHICH WERE ASSOCIATED WITH SEPARATE UNITS, INVOLVING FOUR DIFFERENT EVENTS. THIS IS THE FOURTH OF FOUR REPORTS. REFER TO 2026095-2023-00104 FOR THE FIRST EVENT. REFER TO 2026095-2023-00105 FOR THE SECOND EVENT. REFER TO 2026095-2023-00106 FOR THE THIRD EVENT. FILL VOLUME: 400ML. FLOW RATE: 4 ML/HR. PROCEDURE: UNKNOWN . CATH PLACED: ADDUCTOR CANAL, SCIATIC POPLITEAL. INFUSION START TIME: (B)(6) 2023 AT 19:59. INFUSION STOP TIME: (B)(6) 2023 AT 11:04. IT WAS REPORTED THERE WAS A "FAST FLOW INCIDENT" INVOLVING AN ON-Q PUMP. A TRAUMA PATIENT ADMITTED TO OPERATING ROOM THE DEVICE WAS CONNECTED TO THE PATIENT, RED TAB WAS NOT REMOVED FROM PATIENT-CONTROLLED ANALGESIA (PCA) PUMP. A TOTAL OF 400ML WAS DELIVERED IN LESS THAN 15-HOURS. THE PATIENT STILL REPORTED PAIN. THERE WAS NO REPORTED INJURY. PATIENT DISCHARGED, NO ADVERSE OUTCOME REPORTED.

  Patient problems: Pain

  MAUDE report 18144784 ↗
• MalfunctionNov 15, 2023Excess Flow or Over-Infusion; Excess Flow or Over-Infusion

  AVANOS MEDICAL RECEIVED A SINGLE REPORT THAT REFERENCED FOUR DIFFERENT INCIDENCES, WHICH WERE ASSOCIATED WITH SEPARATE UNITS, INVOLVING FOUR DIFFERENT EVENTS. THIS IS THE THIRD OF FOUR REPORTS. REFER TO 2026095-2023-00104 FOR THE FIRST EVENT. REFER TO 2026095-2023-00105 FOR THE SECOND EVENT. REFER TO 2026095-2023-00107 FOR THE FOURTH EVENT. FILL VOLUME: 400ML. FLOW RATE: 4 ML/HR. PROCEDURE: UNKNOWN. CATH PLACED: ADDUCTOR CANAL, SCIATIC POPLITEAL. INFUSION START TIME: (B)(6) 2023 AT 19:59. INFUSION STOP TIME: 19-OCT-2023 AT 11:04. IT WAS REPORTED THERE WAS A "FAST FLOW INCIDENT" INVOLVING AN ON-Q PUMP. A TRAUMA PATIENT ADMITTED TO OPERATING ROOM THE DEVICE WAS CONNECTED TO THE PATIENT, RED TAB WAS NOT REMOVED FROM PATIENT-CONTROLLED ANALGESIA (PCA) PUMP. A TOTAL OF 400ML WAS DELIVERED IN LESS THAN 15-HOURS. THE PATIENT STILL REPORTED PAIN. THERE WAS NO REPORTED INJURY. PATIENT DISCHARGED, NO ADVERSE OUTCOME REPORTED.

  Patient problems: Pain

  MAUDE report 18144782 ↗
• MalfunctionNov 15, 2023Excess Flow or Over-Infusion; Excess Flow or Over-Infusion

  AVANOS MEDICAL RECEIVED A SINGLE REPORT THAT REFERENCED FOUR DIFFERENT INCIDENCES, WHICH WERE ASSOCIATED WITH SEPARATE UNITS, INVOLVING FOUR DIFFERENT EVENTS. THIS IS THE FIRST OF FOUR REPORTS. REFER TO 2026095-2023-00105 FOR THE SECOND EVENT. REFER TO 2026095-2023-00106 FOR THE THIRD EVENT. REFER TO 2026095-2023-00107 FOR THE FOURTH EVENT. FILL VOLUME: 500ML. FLOW RATE: 4 ML/HR. PROCEDURE: UNKNOWN. CATH PLACED: ADDUCTOR CANAL, SCIATIC POPLITEAL. INFUSION START TIME: 17-OCT-2023 AT 17:27. INFUSION STOP TIME: 18-OCT-2023 AT 19:59. . IT WAS REPORTED THERE WAS A "FAST FLOW INCIDENT" INVOLVING AN ON-Q PUMP. A TRAUMA PATIENT ADMITTED TO OPERATING ROOM THE DEVICE WAS CONNECTED TO THE PATIENT, RED TAB WAS NOT REMOVED FROM PATIENT-CONTROLLED ANALGESIA (PCA) PUMP. A TOTAL OF 500ML WAS DELIVERED IN LESS THAN 26-HOURS. THE PATIENT STILL REPORTED PAIN. THERE WAS NO REPORTED INJURY. PATIENT DISCHARGED, NO ADVERSE OUTCOME REPORTED.

  Patient problems: Pain

  MAUDE report 18144778 ↗
• MalfunctionNov 15, 2023Excess Flow or Over-Infusion; Excess Flow or Over-Infusion

  AVANOS MEDICAL RECEIVED A SINGLE REPORT THAT REFERENCED FOUR DIFFERENT INCIDENCES, WHICH WERE ASSOCIATED WITH SEPARATE UNITS, INVOLVING FOUR DIFFERENT EVENTS. THIS IS THE SECOND OF FOUR REPORTS. REFER TO 2026095-2023-00104 FOR THE FIRST EVENT. REFER TO 2026095-2023-00106 FOR THE THIRD EVENT. REFER TO 2026095-2023-00107 FOR THE FOURTH EVENT. FILL VOLUME: 500ML. FLOW RATE: 4 ML/HR. PROCEDURE: UNKNOWN . CATH PLACED: ADDUCTOR CANAL, SCIATIC POPLITEAL. INFUSION START TIME: (B)(6) 2023 AT 17:27. INFUSION STOP TIME: (B)(6) 2023 AT 19:59. IT WAS REPORTED THERE WAS A "FAST FLOW INCIDENT" INVOLVING AN ON-Q PUMP. A TRAUMA PATIENT ADMITTED TO OPERATING ROOM THE DEVICE WAS CONNECTED TO THE PATIENT, RED TAB WAS NOT REMOVED FROM PATIENT-CONTROLLED ANALGESIA (PCA) PUMP. A TOTAL OF 500ML WAS DELIVERED IN LESS THAN 26-HOURS. THE PATIENT STILL REPORTED PAIN. THERE WAS NO REPORTED INJURY. PATIENT DISCHARGED, NO ADVERSE OUTCOME REPORTED.

  Patient problems: Pain

  MAUDE report 18144777 ↗
• MalfunctionMay 25, 2023Excess Flow or Over-Infusion; Excess Flow or Over-Infusion

  FILL VOLUME: UNKNOWN ML . FLOW RATE: 6 ML/HR. PROCEDURE: UNKNOWN. CATHPLACE: UNKNOWN. INFUSION START TIME: UNKNOWN. INFUSION STOP TIME: UNKNOWN. IT WAS REPORTED A FAST FLOW OCCURRED; THE DEVICE FINISHED WITHIN 24-HOURS. THERE WAS NO REPORTED INJURY.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 17006055 ↗
• MalfunctionApr 21, 2023Physical Resistance/Sticking; Physical Resistance/Sticking

  FILL VOLUME: UNKNOWN, FLOW RATE: UNKNOWN, PROCEDURE: UNKNOWN, CATHPLACE: UNKNOWN. IT WAS INITIALLY REPORTED "BOLUS BUTTON STAYING DECOMPRESSED. THE BUTTON WAS STUCK DOWN, AND COULD NOT INITIALLY GET IT BACK UP. GOING AS FAR AS SMACKING IT A FEW TIMES WITH A STAPLER. THE BUTTON WAS DOWN, THE CHAMBER WAS INDICATING IT WAS FULL, SO THE USER TRIED LETTING THE CHAMBER RUN OUT ALLOWING THE BUTTON TO POP BACK UP. THE BUTTON ONLY POPS BACK UP WHEN THE CHAMBER EMPTIES, BUT GIVEN THE TIME IT TOOK TO CALL A NURSE AND GET THE PAIN TEAM OVER (LIKELY HOURS). THERE WAS NO REPORTED INJURY.

  Patient problems: Insufficient Information

  MAUDE report 16784615 ↗
• MalfunctionMar 28, 2023Excess Flow or Over-Infusion; Excess Flow or Over-Infusion

  FILL VOLUME: 500 ML. FLOW RATE: 4 ML/HR. PROCEDURE: UNKNOWN. CATHPLACE: UNKNOWN. IT WAS REPORTED "THE PUMP HAD COMPLETELY INFUSED AFTER 24-HOURS . THEATRE STAFF DIDN¿T WANT THE PATIENT TO BE ABLE TO USE THE BOLUS FEATURE, SO NEVER REMOVED THE RED TAB. THE [COMPANY REPRESENTATIVE] EXPLAINED THIS IS WHY THE PUMP HAS INFUSED MUCH QUICKER, DESPITE THE FLOW RATE BEING SET AT 4ML/HR. THE PUMP WAS FILLED WITH 500ML 0.2% ROPIVACAINE." ADDITIONAL INFORMATION RECEIVED 14-MAR-2023 REPORTED, THERE [WAS] NO UNTOWARD EFFECT FROM THE INCIDENT OR UNPLANNED FURTHER TREATMENT REQUIRED. THERE WAS NO REPORTED INJURY.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 16628217 ↗

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