MAUDE Adverse Event Report: CURONIX LLC FREEDOM PERIPHERAL NERVE STIMULATOR

Model Number	STQ4-RCV-B0
Medical Device Problem Code	Expulsion (2933)
Health Effect - Clinical Code	Erosion (1750)
Date of Event	04/10/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
The surgical issue questionnaire was reviewed for potential causes of the reported issue.Potential causes of a fractured neurostimulator include: severe force or bending during implantation or explant, improper surgical technique (incorrect tool, implanting too deep), severe force being applied to the implant (patient fall, accident), and excessive twisting or stretching.A curonix representative conducted a review of sterilization and packaging records for the respective product lot; curonix has confirmed that the product was delivered sterile, validated sterilization parameters were used, and sterile barriers were verified to be intact following packaging.The stimulator is used to treat pain.The cause of the reported issue is unknown.The investigation findings do not lead to a clear conclusion about the cause of the reported issue.Therefore, the conclusion has been selected as unable to determine the root cause.Rates reviewed at the most recent complaint trending meeting do not indicate a significant increase in surgical issues.Surgical issue rates remain acceptably low; thus, a capa is not required at this time.Surgical issue rates will continue to be tracked and trended.
Event or Problem Description
The patient reported their neurostimulator was broken in half and eroded through their skin.An explant procedure was performed on (b)(6) 2026.The device appeared fractured above the circuitry after the explant procedure.The neurostimulator was removed and there were no broken or fractured pieces left implanted.As of (b)(6) 2026, the patient is healing and doing well.

• Brand Name: FREEDOM PERIPHERAL NERVE STIMULATOR
• Common Device Name: PERIPHERAL NERVE STIMULATOR
• Manufacturer (Section D): CURONIX LLC; 1310 park central boulevard s.; pompano beach FL 33064
• Manufacturer (Section G): CURONIX LLC; 1310 park central boulevard s.; pompano beach FL 33064
• Manufacturer Contact: alicia pagliaro ; 1310 park central boulevard s.; pompano beach, FL 33064 ; 8009655134
• MDR Report Key: 25113748
• Report Number: 3010676138-2026-00072
• Device Sequence Number: 10232030
• Product Code: GZF
• UDI-Device Identifier: 00850051034413
• UDI-Public: (01)00850051034413(17)240701
• Combination Product (Y/N): N
• Initial Reporter State: PA
• Initial Reporter Country: US
• PMA/510(K) Number: K233162
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2023
• Device Explanted Year: 2026
• 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): 05/07/2026

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: Lay User/Patient
• Device Expiration Date: 07/01/2024
• Device Model Number: STQ4-RCV-B0
• Device Lot Number: SWO220726
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 04/10/2026
• Initial Report FDA Received Date: 05/07/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 06/15/2022
• 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 Age: 65 YR
• Patient Sex: Female