MAUDE Adverse Event Report: ZOLL MEDICAL CORPORATION X SERIES; DEFIBRILLATOR/PACEMAKER

Model Number	610-2221511-01
Medical Device Problem Code	Unable to Obtain Readings (1516)
Health Effect - Clinical Code	Insufficient Information (4580)
Date of Event	10/16/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Zoll medical corporation has not received the device for evaluation and this complaint is still under investigation.
Event or Problem Description
Complainant alleged that while attempting to treat a patient (age & gender unknown), the device was unable to detect the attached electrode pads.Complainant did not indicate that there was any adverse effect to the patient due to the reported malfunction.
Additional Manufacturer Narrative
Zoll medical corporation evaluated the device and the customer's report was not replicated or confirmed.The customer reported an event occurring on or around 10/16/2025.The most recent available device log from the customer was dated september 17, 2025.Review of the device logs from the weeks prior to the reported event identified one brief cable fault during pacing, attributed to a temporary cable id change while in pacer mode.The device recognized the new cable id within approximately one second and was ready to resume pacing.This log could not be confirmed as related to the reported event, and no additional logs were identified to support the claim.The device was fully evaluated with no faults found.The device multifunction cable and receptacle were replaced as a precaution.The device was recertified and returned to the customer.No trend is associated with reports of this type.

• Brand Name: X SERIES
• Common Device Name: DEFIBRILLATOR/PACEMAKER
• 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: 23908808
• Report Number: 1220908-2025-04818
• Device Sequence Number: 18664549
• Product Code: MKJ
• UDI-Device Identifier: 00847946006020
• UDI-Public: (01)00847946006020
• Combination Product (Y/N): N
• Initial Reporter State: IN
• 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): 12/11/2025

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: Other
• Device Model Number: 610-2221511-01
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• 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: 12/11/2025
• Supplement Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 12/29/2025
• Supplement Report FDA Received Date: 02/25/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 05/01/2015
• 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: Reuse
• Patient Sequence Number: 1
• Patient Sex: Unknown