MAUDE Adverse Event Report: RESPIRONICS, INC. TRILOGY O2 VENTILATOR, JAPAN; VENTILATOR, CONTINUOUS, FACILITY USE

Model Number	R1040004TP
Medical Device Problem Codes	Circuit Failure (1089); Electrical /Electronic Property Problem (1198); Device Sensing Problem (2917)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	06/10/2026
Type of Reportable Event	Malfunction
Event or Problem Description
The trilogy o2 ventilator was returned to the manufacturer service center for preventative maintenance.The device was not in use on a patient at the time of the occurrence.During the evaluation it was confirmed by an operational check that "ventilator service required" alarm sounded.Error code 344 (low flow) indicating a failure in the air flow sensor, was recorded in the error log, therefore the oxygen blender board equipped with the air flow sensor was replaced to address the issue.Additionally, periodic maintenance 1 was performed.The following parts were replaced as regulated by maintenance procedure to prevent failure: trilogy o2 pm1 kit.The technician performed repair test, alarm check, battery check, run in tests, cleaning then confirmed the unit operated properly.The software version was confirmed (ver.14.2.05).
Additional Manufacturer Narrative
The reported failure of the air flow sensor is accommodated in the product risk management file as being linked to hazard with description patient exposure to function / deterioration of function.Complaints for this failure are reviewed via the post market complaint trending and escalation processes to assess for the observed probability levels and compare them with the predicted levels in the risk file for the hazards linked to the failure.As of the date of submission for this report, there is no indication that complaints for the failure in question has led to unacceptable increase in probability levels for the hazardous situations in scope, and therefore no further action will be pursued.Qa continues to monitor complaints for this issue per the cadence in the complaint trending procedures.The device mentioned in this complaint has exceeded its useful life per the applicable ifu.Multiple service activities occur during the device¿s useful life according to the device¿s service manual.

• Brand Name: TRILOGY O2 VENTILATOR, JAPAN
• Common Device Name: VENTILATOR, CONTINUOUS, FACILITY USE
• Manufacturer (Section D): RESPIRONICS, INC.; 1001 murry ridge lane; murrysville PA
• Manufacturer (Section G): RESPIRONICS, INC.; 1001 murry ridge lane; murrysville PA
• Manufacturer Contact: melissa rosko ; 1001 murry ridge lane; murrysville, PA ; 7247330200
• MDR Report Key: 25609900
• Report Number: 2518422-2026-025489
• Device Sequence Number: 9914502
• Product Code: CBK
• UDI-Device Identifier: 00606959025394
• UDI-Public: (01)00606959025394
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: K083526
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Other,Foreign,Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 06/24/2026

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: Other
• Device Model Number: R1040004TP
• Device Catalogue Number: R1040004TP
• Was Device Available for Evaluation?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 06/10/2026
• Initial Report FDA Received Date: 06/24/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 04/17/2020
• 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