MAUDE Adverse Event Report: RESPIRONICS, INC. REMSTAR AUTO A-FLEX; VENTILATOR, NON-CONTINUOUS (RESPIRATOR)

Model Number	CA561S
Medical Device Problem Code	Degraded (1153)
Health Effect - Clinical Code	Choking (2464)
Date of Event	07/26/2022
Type of Reportable Event	Malfunction
Event or Problem Description
The manufacturer received information alleging an issue related to a cpap device's sound abatement foam.The patient alleged visualization of black particles in the tubing and water chamber.Patient also alleged choking while using the device.There is no allegation of serious or permanent harm or injury.No medical intervention was required by the patient.The manufacturer's investigation is ongoing.A follow-up report will be submitted when the manufacturer's investigation is complete.
Additional Manufacturer Narrative
Additional information was received on may 29, 2025, and section h11 should be reported as: the manufacturer previously received information alleging an issue related to a cpap device's sound abatement foam.The patient alleged visualization of black particles in the tubing and water chamber.Patient also alleged choking while using the device.There is no allegation of serious or permanent harm or injury.No medical intervention was required by the patient.The device was returned to the third-party service center for further evaluation.The device was evaluated.There was no mention of visual findings to the external part of the device.The internal aspect of the device was inspected.The device powered on and airflow was confirmed.The device's downloaded logs were reviewed.There were 2 errors found.The third-party service center concludes that they could not confirm the customer's allegation and there was no visible foam degradation.Device was scrapped.Sections d8, d9, h2, h3 and h6 has been updated in this report.

• Brand Name: REMSTAR AUTO A-FLEX
• Common Device Name: VENTILATOR, NON-CONTINUOUS (RESPIRATOR)
• Manufacturer (Section D): RESPIRONICS, INC.; 1001 murry ridge lane; murrysville PA 15668
• Manufacturer (Section G): RESPIRONICS, INC.; 1001 murry ridge lane; murrysville PA 15668
• Manufacturer Contact: rosko melissa ; 1001 murry ridge line; murrysville, PA 15668 ; 7247330200
• MDR Report Key: 15182431
• Report Number: 2518422-2022-69285
• Device Sequence Number: 17618718
• Product Code: BZD
• UDI-Device Identifier: 00606959014152
• UDI-Public: 00606959014152
• Combination Product (Y/N): N
• Initial Reporter Country: CA
• PMA/510(K) Number: K131982
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,Consumer
• Initial Reporter Occupation: Non-Healthcare Professional
• Remedial Action: Recall
• Type of Report: Initial,Followup
• Report Date (Section B): 09/16/2025

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: Lay User/Patient
• Device Model Number: CA561S
• Device Catalogue Number: CA561S
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/26/2022
• Supplement Date Received by Manufacturer: 05/29/2025
• Initial Report FDA Received Date: 08/08/2022
• Supplement Report FDA Received Date: 09/16/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 04/03/2015
• 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
• Usage of Device: Unknown
• If action reported to FDA under 21 USC 360i(g), list FDA-assigned Recall Number or include a statement: RES 88058
• Patient Sequence Number: 1
• Patient Sex: Unknown