MAUDE Adverse Event Report: NEVRO CORP. SENZA; NEVRO SENZA

Model Number	LEAD2005-90B
Medical Device Problem Code	Fracture (1260)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	11/05/2024
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported the patient underwent a revision and it was found there was the white wire broken from the paddle while it was implanted.An hcp assessment regarding the cause of the reported event was not available.The patient had the device explanted.There have been no reports of further complications regarding this event.
Additional Manufacturer Narrative
The manufacturing records were reviewed and no relevant non-conformities were found.Nevro is awaiting the return of the device.Nevro submits this report in compliance with fda¿s medical device reporting regulations under 21 cfr part 803.Nevro has complied with regulatory investigation requirements and is submitting all information that is reasonably known to us at this time.However, we may not have been able to confirm this information or complete the investigation within the timeframe for filing this report.We may have given no response or an incomplete response to certain questions because we do not currently have information available to provide a complete response.If we later obtain any required information that was not available at the time of this initial report, we will submit a supplemental report.This report is not an admission by anyone that the product described in this report was defective, that it malfunctioned, or that it caused or contributed to the event described in this report.We may conclude that the device had no defect, did not malfunction, or did not cause or contribute to a reportable event.Some of the items on this form include forced-choice terms used by the fda for reporting purposes that do not necessarily reflect nevro¿s conclusions about the causes or nature of the event.This statement should be included with any freedom of information act response.
Additional Manufacturer Narrative
Updated sections: d9, g1, h2, h3, h6 codes for type of investigation, investigation findings and investigation conclusion.Visual inspection was performed on the returned device and noticeable damage was observed.The microscopy confirmed that some sort of force, strain, or tension likely pulled the white lead out of the paddle.The investigation could not find the cause of the fractured lead as it occurred while implanted in the patient¿s body, and there were no reports of any falls, injuries, surgeries, or other events/activities.It is possible excessive force, strain, or tension pulled the paddle lead apart, which caused the white lead to become disconnected from the paddle.However, a definitive root cause of the fractured lead cannot be conclusively determined with the available evidence.Nevro submits this report in compliance with fda¿s medical device reporting regulations under 21 cfr part 803.Nevro has complied with regulatory investigation requirements and is submitting all information that is reasonably known to us at this time.However, we may not have been able to confirm this information or complete the investigation within the timeframe for filing this report.We may have given no response or an incomplete response to certain questions because we do not currently have information available to provide a complete response.If we later obtain any required information that was not available at the time of this initial report, we will submit a supplemental report.This report is not an admission by anyone that the product described in this report was defective, that it malfunctioned, or that it caused or contributed to the event described in this report.We may conclude that the device had no defect, did not malfunction, or did not cause or contribute to a reportable event.Some of the items on this form include forced-choice terms used by the fda for reporting purposes that do not necessarily reflect nevro¿s conclusions about the causes or nature of the event.This statement should be included with any freedom of information act response.

• Brand Name: SENZA
• Common Device Name: NEVRO SENZA
• Manufacturer (Section D): NEVRO CORP.; 1800 bridge parkway; redwood city CA 94065
• Manufacturer Contact: john paxton ; 1800 bridge parkway; redwood city, CA 94065 ; 6504332730
• MDR Report Key: 20779880
• Report Number: 3008514029-2024-01082
• Device Sequence Number: 5052220
• Product Code: LGW
• UDI-Device Identifier: 00813426020640
• UDI-Public: 00813426020640
• Combination Product (Y/N): N
• Initial Reporter State: CA
• Initial Reporter Country: US
• PMA/510(K) Number: P130022
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2023
• Device Explanted Year: 2024
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 06/09/2025

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: Health Professional
• Device Expiration Date: 06/30/2025
• Device Model Number: LEAD2005-90B
• Device Lot Number: 94525321
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 11/05/2024
• Supplement Date Received by Manufacturer: 05/28/2025
• Initial Report FDA Received Date: 11/26/2024
• Supplement Report FDA Received Date: 06/09/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 07/05/2022
• 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: Initial
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Sex: Female