MAUDE Adverse Event Report: ROCHE DIAGNOSTICS COBAS 8000 E 801 MODULE; IMMUNOCHEMISTRY ANALYZER

Catalog Number	07682913001
Medical Device Problem Code	Low Test Results (2458)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	03/20/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The folate reagent lot number and expiration date were requested, but not provided.The investigation is ongoing.
Event or Problem Description
The initial reporter stated they received discrepant results for one patient sample tested with elecsys folate iii on a cobas e 801 module.The sample initially resulted in a folate value of 6 ng/ml.The sample was repeated on a second analyze on (b)(6) 2026, resulting in a value of 4 ng/ml.
Additional Manufacturer Narrative
The field service engineer replaced the measuring cell and found a blocked mixer wash station that prevented the mixer from drying, causing carryover of water into the reagent.The mixer issue was resolved.The investigation determined the service actions resolved the issue.

• Brand Name: COBAS 8000 E 801 MODULE
• Common Device Name: IMMUNOCHEMISTRY ANALYZER
• Manufacturer (Section D): ROCHE DIAGNOSTICS; 9115 hague road; indianapolis IN 46250 0457
• Manufacturer (Section G): HITACHI HIGH TECH CORP.; 882 ichige hitachinaka; ibaraki 312-8 504; JA 312-8504
• Manufacturer Contact: natalie catton ; 9115 hague road; indianapolis, IN 46250
• MDR Report Key: 24816643
• Report Number: 1823260-2026-01340
• Device Sequence Number: 17678627
• Product Code: JJE
• UDI-Device Identifier: 04015630946198
• UDI-Public: 04015630946198
• Combination Product (Y/N): N
• Initial Reporter Country: AU
• PMA/510(K) Number: K060373
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,User Facility
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 04/29/2026

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: 07682913001
• Was Device Available for Evaluation?: Yes
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 03/24/2026
• Supplement Date Received by Manufacturer: 04/08/2026
• Initial Report FDA Received Date: 04/08/2026
• Supplement Report FDA Received Date: 04/29/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Patient Sex: Unknown