MAUDE Adverse Event Report: ZOLL MEDICAL CORPORATION Z VENT; VENTILATOR

Model Number	799-AEB1-00-01
Medical Device Problem Code	Calibration Problem (2890)
Health Effect - Clinical Code	Insufficient Information (4580)
Date of Event	12/23/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Zoll medical corporation has received the product and will be providing a supplemental report when our investigation is completed.
Event or Problem Description
Complainant alleged that while attempting to treat a patient (age & gender unknown), the device displayed a "runtime calibration failure - 1051" error message.Complainant did not indicate that there was any adverse effect to the patient due to the reported malfunction.
Additional Manufacturer Narrative
The device was returned to zoll medical corporation for evaluation.The customer's report was observed during review of the device data logs.The log review identified self-check pneumatic sensor events (codes 3172 and 1051) related to the device inability to properly zero the airway pressure sensor during the autocalibration cycle.These events can be intermittent and may be influenced by environmental factors such as vibration or mounting instability.During technical evaluation, the reported issue could not be reproduced.The unit was stress-tested for over two hours without failure, passed all functional testing (exhalation, backup, and autocal valve checks), and internal inspection confirmed no discrepancies.The logged events cleared after a power cycle.The smart pneumatic module (spm) board was recommended to be replaced as a precaution.The device was recertified and returned to the customer.Analysis of reports of this type has not identified an increase in trend.

• Brand Name: Z VENT
• Common Device Name: VENTILATOR
• Manufacturer (Section D): ZOLL MEDICAL CORPORATION; 269 mill road; chelmsford MA 01824
• Manufacturer Contact: scott august ; 269 mill road; chelmsford, MA 01824 ; 9784219552
• MDR Report Key: 24185038
• Report Number: 1220908-2026-00327
• Device Sequence Number: 10017073
• Product Code: CBK
• UDI-Device Identifier: 00847946024192
• UDI-Public: (01)00847946024192
• Combination Product (Y/N): N
• Initial Reporter State: MN
• Initial Reporter Country: US
• PMA/510(K) Number: K162832
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 01/06/2026

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: 799-AEB1-00-01
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 01/15/2026
• Is the Reporter a Health Professional?: No
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 01/06/2026
• Supplement Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 01/26/2026
• Supplement Report FDA Received Date: 02/17/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 09/01/2020
• 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
• Usage of Device: Reuse
• Patient Sequence Number: 1
• Patient Sex: Unknown