MAUDE Adverse Event Report: ZOLL MEDICAL CORPORATION X SERIES; AUTOMATED EXTERNAL DEFIBRILLATORS (NON-WEARABLE)

Model Number	630-2231111-01
Medical Device Problem Codes	Failure to Deliver Shock/Stimulation (1133); Defibrillation/Stimulation Problem (1573)
Health Effect - Clinical Code	Insufficient Information (4580)
Date of Event	05/19/2026
Type of Reportable Event	Malfunction
Event or Problem Description
Complainant alleged that while attempting to defibrillate a male patient (age unknown), the device internally dumped the energy and displayed a "defib charging error" message.Complainant indicated that the clinician was able to continue treating the patient with the device.Complainant did not indicate that there was any adverse effect to the patient due to the reported malfunction.
Additional Manufacturer Narrative
Zoll medical corporation has received the product and will be providing a supplemental report when our investigation is completed.
Additional Manufacturer Narrative
Correction: b5.The device was returned to zoll medical corporation for evaluation.Review of the device log showed that during the second charge attempt, charging was internally aborted due to a brief battery voltage drop below 8 vcd, resulting in a charge error.An immediate reattempt was successful, and the synchronized cardioversion shock was delivered as intended.Both synchronized cardioversions were successfully delivered to the patient.Functional testing, repeat defibrillation testing, and internal inspection found no device malfunction.The device was recertified for clinical use.Analysis of reports of this type has not identified an increase in trend.
Event or Problem Description
Complainant alleged that while attempting to defibrillate a male patient (age unknown), the device displayed a "defib charging error" message.Complainant indicated that the clinician was able to continue treating the patient with the device.Complainant did not indicate that there was any adverse effect to the patient due to the reported malfunction.

• Brand Name: X SERIES
• Common Device Name: AUTOMATED EXTERNAL DEFIBRILLATORS (NON-WEARABLE)
• 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: 25458617
• Report Number: 1220908-2026-01988
• Device Sequence Number: 13349086
• Product Code: MKJ
• UDI-Device Identifier: 00847946029517
• UDI-Public: (01)00847946029517
• Combination Product (Y/N): N
• Initial Reporter State: IL
• Initial Reporter Country: US
• PMA/510(K) Number: P160022
• 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): 05/20/2026

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: 630-2231111-01
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 06/02/2026
• 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: 05/20/2026
• Supplement Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 06/10/2026
• Supplement Report FDA Received Date: 07/13/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 12/01/2023
• 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: Male