MAUDE Adverse Event Report: FISHER & PAYKEL HEALTHCARE LTD MR850; RESPIRATORY HUMIDIFIER

Model Number	MR850AEA
Medical Device Problem Code	No Audible Alarm (1019)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
(b)(6).Method: the subject pcb of the mr850 respiratory humidifier was received at our fisher & paykel (f&p) healthcare regional office in china where it was inspected by a trained f&p service technician.Our investigation is based on the information, photograph and video provided by the healthcare facility, our evaluation of the subject device and our knowledge of the product.Results: review of the provided video observed that the speaker of the mr850 respiratory humidifier generated no audible sound, confirming the reported issue.The speaker resistance test performed by the regional service centre determined the speaker had an open circuit.Conclusion: based on the information provided by the customer and without the return of the subject device, we are unable to determine the exact cause of the reported fault.The mr850 respiratory humidifier product technical manual contains a maintenance schedule which instructs the user to conduct annual visual checking and performance testing of the mr850 respiratory humidifier.In addition, the product technical manual also states that "all servicing procedures should be followed by a humidifier test, and an electrical safety test to ensure proper operation".The mr850 respiratory humidifier is equipped with visual alarm indicators in addition to the audible alarm.
Event or Problem Description
A distributor reported on behalf of a healthcare facility in china that the audible alarm of an mr850 respiratory humidifier was not functioning during patient use.There was no patient consequence.

• Brand Name: MR850
• Common Device Name: RESPIRATORY HUMIDIFIER
• Manufacturer (Section D): FISHER & PAYKEL HEALTHCARE LTD; 15 maurice paykel place; east tamaki; auckland, 2013 ; NZ 2013
• Manufacturer (Section G): FISHER & PAYKEL HEALTHCARE LTD; 15 maurice paykel place; east tamaki; auckland, 2013 ; NZ 2013
• Manufacturer Contact: diego banuelos ; 17400 laguna canyon road; suite 300; irvine, CA 92618 ; 9494341005
• MDR Report Key: 24735057
• Report Number: 9611451-2026-01028
• Device Sequence Number: 13367460
• Product Code: BTT
• UDI-Device Identifier: 09420012407177
• UDI-Public: (01)09420012407177(10)2102097032(11)220322
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: K073706
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,User Facility,Distributor
• Initial Reporter Occupation: Other
• Type of Report: Initial
• Report Date (Section B): 03/31/2026

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: MR850AEA
• Device Catalogue Number: MR850AEA
• Device Lot Number: 2102097032
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/02/2026
• Initial Report FDA Received Date: 03/30/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 03/22/2022
• 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: Reuse
• Patient Sequence Number: 1
• Patient Sex: Unknown