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

Model Number	ACCK5300
Medical Device Problem Code	Fracture (1260)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	03/14/2024
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that the anchor was found broken during a revision.It was not clear if the lead was fractured as well, but several contacts were nonfunctional (high impedance values) so the anchor possibly fractured the lead.An hcp assessment regarding the cause of the reported event was not available.There have been no reports of further complications regarding this event.
Additional Manufacturer Narrative
The manufacturing records were reviewed and no relevant nonconformities 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, h2, h3, h6 codes for type of investigation, investigation findings and investigation conclusion, correction for h6 component code.The other codes in h6 remain unchanged from the previous submitted form.The devices were returned and analyzed.Anchor and lead were confirmed to be fractured.The root cause of the anchor damage is likely from physician mishandling, where the sutures were overtightened directly around the lead.The exact root cause of the lead damage cannot be conclusively determined, but is most likely a combination of the broken anchor, fracture, wear and tear, and/or sudden movements straining the cables.There was no breakage of the outer lead insulation material (pellethane) and the fractured cables were contained and had no risk of exposed metal.A review of the diagnostic data revealed no out of range measurements at the time of the implantation, it can be assumed that the leads were manufactured within specification.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
H6 code correction mdr needed to correct impact code to "device revision or replacement", the other codes in h6 remain unchanged from the previous submitted form.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: zulfiqar ali ; 1800 bridge parkway; redwood city, CA 94065 ; 6505317627
• MDR Report Key: 19618107
• Report Number: 3008514029-2024-00582
• Device Sequence Number: 6963582
• Product Code: LGW
• UDI-Device Identifier: 00813426020251
• UDI-Public: 00813426020251
• 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: 2020
• 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,Followup
• Report Date (Section B): 11/26/2024

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: 02/28/2023
• Device Model Number: ACCK5300
• Device Lot Number: 9447155
• 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: 06/05/2024
• Supplement Date Received by Manufacturer: 08/26/2024; 11/14/2024
• Initial Report FDA Received Date: 06/26/2024
• Supplement Report FDA Received Date: 09/06/2024; 11/27/2024
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 03/24/2020
• 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
• Concomitant Medical Products and Therapy/Usage Dates: LEAD1058-50B (LOT 94470849).
• Patient Sex: Male