MAUDE Adverse Event Report: Curonix LLC Freedom Peripheral Nerve Stimulator

Model Number	STQ4-RCV-A0, STQ4-RCV-B0
Medical Device Problem Code	Use of Device Problem (1670)
Health Effect - Clinical Code	Erosion (1750)
Date of Event	08/25/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
The surgical issue questionnaire was reviewed for potential causes of the reported issue.Based on this review, implanting the device off-label, not performing an x-ray immediately after the implant procedure to confirm device placement, inadequate fixation, implanting a damaged neurostimulator, implanting the neurostimulator after the expiration date, not prepping the surface of the skin with an antiseptic solution, multiple tunneling attempts, using incorrect tools, and not prescribing antibiotics pre-operatively have been ruled out.Additionally, the patient having contraindicating conditions, the patient touching or picking at the wound, and severe force being applied to the implant have been ruled out.However, a surgical issue was identified as the incision site was not irrigated with an antibiotic solution before closure.Additionally, the incision site was closed using staples which is non-compliant to the ifu.\ \ 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.Although the cause the discoloration and erosion are unknown, a surgical issue was identified as the incision site was not irrigated with an antibiotic solution before closure (user error-clinician).Additionally, non-compliance to the ifu was identified as the incision site was closed using staples (user error-clinician).\ \ 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 the receiver site appeared discolored with erosion at the receiver site.Antibiotics were prescribed, an explant procedure was performed on (b)(6) 2026, and two new neurostimulators were implanted.No further issues have been reported.

• 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 ; +1(800)965-5134
• MDR Report Key: 50721125
• Report Number: 3010676138-2026-00189
• Device Sequence Number: 13301871
• Product Code: GZF
• UDI-Device Identifier: 00850051034406
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: K233162
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2025
• 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): 09/10/2026

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 Model Number: STQ4-RCV-A0, STQ4-RCV-B0
• Device Lot Number: SWO250516, SWO250328
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 08/25/2026
• Initial Report FDA Received Date: 09/10/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 04/14/2025
• 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: 56 YR
• Patient Sex: Female