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

Model Number	30001003101110013
Medical Device Problem Code	Incorrect Interpretation of Signal (1543)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	05/11/2026
Type of Reportable Event	Malfunction
Event or Problem Description
Complainant alleged while attempting to treat a patient due to arrythmia (age & gender unknown), the device prompted "no shock advised" for a rhythm clinicians believed to be shockable.Complainant indicated that there was no adverse effect to the patient due to the reported malfunction.
Additional Manufacturer Narrative
Zoll medical corporation has not received the device for evaluation and this complaint is still under investigation.
Additional Manufacturer Narrative
The device was not returned to zoll medical corporation.The customer indicated the device will not be sent in for evaluation as they were able to successfully retrieve the ecg strips from the date of the reported incident.The customer confirmed the device is functioning as intended.This claim is closed as no sample was returned-.

• Brand Name: R 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: 25365115
• Report Number: 1220908-2026-01940
• Device Sequence Number: 10653733
• Product Code: MKJ
• UDI-Device Identifier: 00847946017408
• UDI-Public: (01)00847946017408
• Combination Product (Y/N): N
• Initial Reporter State: NY
• 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): 05/15/2026

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: 30001003101110013
• Was Device Available for Evaluation?: No
• 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: 05/15/2026
• Supplement Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 06/02/2026
• Supplement Report FDA Received Date: 07/08/2026
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 02/01/2023
• 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: Unknown