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

Model Number	E 411
Medical Device Problem Codes	Low Test Results (2458); Non Reproducible Results (4029)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/28/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The reagent lot number was 924462.The expiration date was not provided.The serial number for module 2 is (b)(6).The qc was acceptable.The service representative found that the pinch valve was severely deteriorated.He replaced both pinch valves and adjusted the pipette.The investigation determined that the service actions resolved the issue.
Event or Problem Description
There was an allegation of questionable elecsys troponin t hs stat results for 1 patient sample on a cobas e 411 analyzer (disk system).The initial result was 15.61 ng/l.The sample was repeated on another module (module 2), and the result was 4.91 ng/l.This result was correct.On (b)(6) 2026, the sample was repeated.The sample was tested on the same module as the initial result, and the result was 4.46 ng/l.The result on module 2 was 4.91 ng/l.

• Brand Name: COBAS E 411 ANALYZER (DISK 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: 25302847
• Report Number: 1823260-2026-02078
• Device Sequence Number: 13156608
• Product Code: JJE
• UDI-Device Identifier: 04015630937103
• UDI-Public: 04015630937103
• Combination Product (Y/N): N
• Initial Reporter Country: SP
• 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
• Report Date (Section B): 05/27/2026

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: 04775279001
• Was Device Available for Evaluation?: Yes
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 04/29/2026
• Initial Report FDA Received Date: 05/27/2026
• 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