MAUDE Adverse Event Report: OGDEN MANUFACTURING PLANT OPTIFLUX F250NRe HF 12/CS 2.5SA EBEAM; Dialyzer, High Permeability With Or Without Sealed Dialysate System

Catalog Number	0500325E
Medical Device Problem Code	Obstruction of Flow (2423)
Health Effect - Clinical Code	Hemorrhage/Blood Loss/Bleeding (1888)
Date of Event	08/18/2026
Type of Reportable Event	Malfunction
Event or Problem Description
A user facility¿s medical instrument technician reported that a fme optiflux dialyzer experienced blood flowing back out of the dialyzer when the machine flow was turned on.When the flow was turned off, the dialyzer filled back up with blood.This occurred two hours after the initiation of a patient¿s hemodialysis (hd) treatment.The machine, a fme 2008t machine, did not alarm but was not expected to.The machine was removed from service following the incident and no issues were found.The machine was returned to service and has not had any issues since.A fme bloodline was in use.There was no obvious defect or damage seen on the dialyzer.The patient¿s blood was not returned following the incident and their estimated blood loss (ebl) was approximately 300ml.The patient was restarted on a new machine and treatment completed successfully with new supplies.There was no patient injury or medical intervention required due to the reported event.The complaint device is available to be returned to the manufacturer for evaluation.Multiple attempts have been made to contact the customer to obtain additional information related to the reported event.At this time, no additional information has been provided.
Additional Manufacturer Narrative
The plant investigation is in process.A supplemental mdr will be submitted upon completion of this activity. .

• Brand Name: OPTIFLUX F250NRe HF 12/CS 2.5SA EBEAM
• Common Device Name: Dialyzer, High Permeability With Or Without Sealed Dialysate System
• Manufacturer (Section D): OGDEN MANUFACTURING PLANT; director, site quality; 475 west 13th street; ogden UT 84404
• Manufacturer (Section G): OGDEN MANUFACTURING PLANT; director, site quality; 475 west 13th street; ogden UT 84404
• Manufacturer Contact: jessica trujillo ; 920 winter st; waltham, MA 02451 ; +1(617)417-5172
• MDR Report Key: 50457954
• Report Number: 0001713747-2026-00321
• Device Sequence Number: 10241460
• Product Code: KDI
• UDI-Device Identifier: 00840861100170
• UDI-Public: 00840861100170
• Combination Product (Y/N): N
• Initial Reporter State: TN
• Initial Reporter Country: US
• PMA/510(K) Number: K162488
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: User Facility
• Initial Reporter Occupation: Biomedical Engineer
• Type of Report: Initial,Followup
• Report Date (Section B): 09/24/2026

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: Health Professional
• Device Catalogue Number: 0500325E
• Device Lot Number: 26AU04004
• Was Device Available for Evaluation?: Yes
• Is the Reporter a Health Professional?: No
• Device Age: MO
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 08/21/2026
• Supplement Date Received by Manufacturer: 09/24/2026
• Initial Report FDA Received Date: 08/26/2026
• Supplement Report FDA Received Date: 09/24/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 01/06/2026
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Concomitant Medical Products and Therapy/Usage Dates: FME Bloodlines; FME Hemodialysis Machine
• Patient Sex: Male
• Patient Weight: 184 LB