MAUDE Adverse Event Report: COVIDIEN LLC MICROSTREAM; ANALYZER, GAS, CARBON-DIOXIDE, GASEOUS-PHASE

Model Number	PM35MN02
Medical Device Problem Code	Device Alarm System (1012)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	12/31/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.
Event or Problem Description
It was reported that the spo2 alarm on the device did not activate when oxygen saturation reached its lower limits during pre-operative preparation.The device alarm failed when the issue occurred.The device was tested before use, and the lower and high alarms were updated.There was an visual but no audible alarm.Troubleshooting steps included testing the device and updating alarm settings, as well as swapping to isolate the issue.There was no patient involved.
Additional Manufacturer Narrative
Additional information: g3, h3, h6.H3 evaluation summary: medtronic conducted an investigation based upon all information received.The device was available for evaluation.Visual inspection noted upon powering on the unit, no audio output was present.Further diagnostics revealed that the speaker connector inside the main board was unplugged.The software was updated and the co2 board was recalibrated.Both the internal and external batteries were replaced due to age and routine maintenance.The issue was resolved by properly reconnect the speaker connector.It was reported that the spo2 alarm on the device did not activate when oxygen saturation reached its lower limits during pre-operative preparation.The reported issue was confirmed.The most likely cause was traced to a component failure.The manufacturing records for each device are thoroughly reviewed prior to release to ensure that it meets all medtronic quality specifications.Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.

• Brand Name: MICROSTREAM
• Common Device Name: ANALYZER, GAS, CARBON-DIOXIDE, GASEOUS-PHASE
• Manufacturer (Section D): COVIDIEN LLC; 6135 gunbarrel ave; boulder,co
• Manufacturer (Section G): COVIDIEN LLC; 6135 gunbarrel ave; boulder,co
• Manufacturer Contact: mike bocchino ; 8200 coral sea st ne; mounds view, MN 55112-4391 ; 8006464633
• MDR Report Key: 24116288
• Report Number: 2936999-2026-00024
• Device Sequence Number: 9334840
• Product Code: CCK
• UDI-Device Identifier: 10884521551596
• UDI-Public: (01)10884521551596(11)200510
• Combination Product (Y/N): N
• Initial Reporter State: AZ
• Initial Reporter Country: US
• PMA/510(K) Number: K150272
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Biomedical Engineer
• Type of Report: Initial,Followup
• Report Date (Section B): 03/30/2026

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: PM35MN02
• Device Catalogue Number: PM35MN02
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 01/13/2026
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 01/02/2026
• Supplement Date Received by Manufacturer: 03/27/2026
• Initial Report FDA Received Date: 01/20/2026
• Supplement Report FDA Received Date: 03/30/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 05/10/2020
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Unknown
• Patient Sequence Number: 1
• Patient Sex: Unknown