MAUDE Adverse Event Report: ROCHE DIAGNOSTICS COBAS E 411 ANALYZER (RACK SYSTEM); IMMUNOCHEMISTRY ANALYZER

Model Number	E 411
Medical Device Problem Code	Non Reproducible Results (4029)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	03/25/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The reagent information was not provided.The investigation is ongoing.
Event or Problem Description
There was an allegation of questionable hepatitis b surface antigen (hbsag) results for multiple patient samples on a cobas e 411 analyzer (rack system).Multiple previous patient samples were repeated and the results were positive.The exact results and number of patient samples was not provided.

• Brand Name: COBAS E 411 ANALYZER (RACK SYSTEM)
• 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: 24953465
• Report Number: 1823260-2026-01542
• Device Sequence Number: 12078436
• Product Code: JJE
• UDI-Device Identifier: 04015630924721
• UDI-Public: 04015630924721
• Combination Product (Y/N): N
• Initial Reporter Country: IT
• PMA/510(K) Number: K961481
• 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): 06/10/2026

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 Model Number: E 411
• Device Catalogue Number: 04775201001
• 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: 03/26/2026
• Supplement Date Received by Manufacturer: 05/18/2026
• Initial Report FDA Received Date: 04/22/2026
• Supplement Report FDA Received Date: 06/10/2026
• 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