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

Model Number	EXTS3500
Medical Device Problem Code	Improper or Incorrect Procedure or Method (2017)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	06/27/2023
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Per physician manual 10001231 rev d, section 4.7 attaching the hfx trial stimulator to the patient, the instructions specify to "attach the pouch to the patient by removing the liner from the bottom adhesive and pressing the pouch and hfx trial stimulator onto the patient." investigation indicated that the pouch was adhered to the dressing instead.The manufacturing records were reviewed and no relevant nonconformities were found.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.H3 other text : the device was not returned.
Event or Problem Description
It was reported that the patient's dressing detached from the patient's skin due to excessive sweating and moist skin.The trial stimulator was attached to this dressing rather than to the patient's skin directly, causing it to be detached as well.The patient's leads were removed and there have been no reports of further complications regarding this event.

• 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: 17330239
• Report Number: 3008514029-2023-00427
• Device Sequence Number: 5536977
• Product Code: LGW
• UDI-Device Identifier: 00813426020770
• UDI-Public: 00813426020770
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: P130022
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 07/14/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Operator of Device: Health Professional
• Device Expiration Date: 12/31/2024
• Device Model Number: EXTS3500
• Device Catalogue Number: EXTS3500
• Device Lot Number: 9453859
• Was Device Available for Evaluation?: No
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 06/27/2023
• Initial Report FDA Received Date: 07/14/2023
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 01/30/2023
• 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: TLEAD1058-50B, LOT NO.: 50089843; TLEAD1058-50B, LOT NO.: 94543577
• Outcome Attributed to Adverse Event: Other
• Patient Sex: Male