MAUDE Adverse Event Report: ICU Medical, Inc Medfusion 4000 Syringe Infusion Pump; Pump, Infusion

Model Number	4000
Medical Device Problem Code	Failure to Infuse (2340)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/21/2026
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that the o-ring on the plunger was falling off and was giving a "check syringe plunger sensor" error.The event occurred during preventative maintenance upon start up.There was no patient involvement and harm.
Additional Manufacturer Narrative
Investigation including root cause analysis is in progress.A supplemental mdr will be filed as necessary in accordance with 21 cfr 803.56 when additional information becomes available.

• Brand Name: Medfusion 4000 Syringe Infusion Pump
• Common Device Name: Pump, Infusion
• Manufacturer (Section D): ICU Medical, Inc; 6000 nathan lane north; minneapolis MN 55442
• Manufacturer Contact: reed covert ; 600 n. field dr.; lake forest, IL 60045 ; +1(224)706-2300
• MDR Report Key: 50802454
• Report Number: 3012307300-2026-08764
• Device Sequence Number: 21468745
• Product Code: FRN
• UDI-Device Identifier: 15019517069624
• Combination Product (Y/N): N
• Initial Reporter State: NA
• Initial Reporter Country: CA
• PMA/510(K) Number: K111386
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,User Facility
• Initial Reporter Occupation: Biomedical Engineer
• Type of Report: Initial
• Report Date (Section B): 09/17/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Other
• Device Model Number: 4000
• Device Catalogue Number: 4000-0106-01
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 08/21/2026
• Initial Report FDA Received Date: 09/17/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 05/22/2019
• Is the Device Labeled for Single Use? (Y/N): No
• Usage of Device: Reuse
• Patient Sequence Number: 1
• Patient Sex: Unknown