MAUDE Adverse Event Report: STIMWAVE TECHNOLOGIES INC. STIMQ NEUROSTIMULATOR; WEARABLE ANTENNA ASSEMBLY

Model Number PDBT-915-2K

Device Problem Temperature Problem (3022)

Patient Problems Burning Sensation (2146); Skin Inflammation/ Irritation (4545)

Event Date 04/25/2022

Event Type  Injury  

Event Description

The patient was implanted with a stimq neurostimulator on (b)(6) 2019.On (b)(6) 2022 the patient reported a burning sensation in their lower back around the site of the stimulator.After meeting with the clinical representative, the patient clarified that they were feeling a hot sensation and something was burning their skin.The patient was immediately instructed to stop wearing the wearable antenna assembly and turn it off.The antenna pad was getting hot regardless of increasing or decreasing the power index.The patient presented with a large red/irritated area to their lower back directly over the stimwave stimulator receiver, spanning from midline back to the lateral coil pocket.The patient also has a nevro scs system implanted with the ipg on his right lower back just below the reported red area.The stimwave device remains implanted, the patient was provided new waas and was instructed to wear the antenna superior to the nevro battery to avoid any heating/burning of the skin.The patient is receiving therapy, the skin has cleared substantially, and they are doing well.

Manufacturer Narrative

The waa heat-related failure questionnaire was reviewed for potential causes of the reported issue.Based on this review, inadequate dosage and placing the device directly on the skin have been ruled out as potential causes.However, the patient has a non-stimwave device implanted near the stimwave device.Stimwave investigated rma-6578 on may 13, 2022.The investigation of the device was unable to replicate the alleged issue, and no non-conformances were found.For the report of overheating: thermal imaging was used to verify the outside temperature of the device while operating, outside temperature while charging, and the internal temperature while operating.Results are as follows: outside thermal temperature while operating: 28.7°c.Outside thermal temperature while charging: 29.2°c.Internal thermal temperature while operating: 30.0°c.The outside thermal temperature while charging was 29.2°c, which is below the product requirements specification of 41°c (106°f).Based on the thermal imaging, there is no evidence of thermal damage and the product met temperature specifications.Stimwave investigated rma-6597 on may 12, 2022.The investigation of the device was unable to replicate the alleged issue, and no non-conformances were found.For the report of overheating: thermal imaging was used to verify the outside temperature of the device while operating, outside temperature while charging, and the internal temperature while operating.Results are as follows: outside thermal temperature while operating: 28.3°c.Outside thermal temperature while charging: 28.4°c.Internal thermal temperature while operating: 28.2°c.The outside thermal temperature while charging was 28.4°c, which is below the product requirements specification of 41°c (106°f).Based on the thermal imaging, there is no evidence of thermal damage and the product met temperature specifications.The stimulator is used to treat pain.The cause of the reported issue is due to interference of a non-stimwave device and is not in compliance with the ifu (user error - clinician).

• Brand Name: STIMQ NEUROSTIMULATOR
• Type of Device: WEARABLE ANTENNA ASSEMBLY
• Manufacturer (Section D): STIMWAVE TECHNOLOGIES INC.; 1310 park central boulevard s.; pompano beach FL 33064
• Manufacturer (Section G): STIMWAVE TECHNOLOGIES INC.; 1310 park central boulevard s.; pompano beach FL 33064
• Manufacturer Contact: alicia pagliaro ; 1310 park central boulevard s.; pompano beach, FL 33064
• MDR Report Key: 14491349
• MDR Text Key: 294776367
• Report Number: 3010676138-2022-00068
• Device Sequence Number: 1
• Product Code: GZF
• UDI-Device Identifier: 00818225020150
• UDI-Public: 0100818225020150
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: K171366
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Company Representative
• Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date: 05/24/2022

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 05/24/2022
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Device Operator: Lay User/Patient
• Device Model Number: PDBT-915-2K
• Device Lot Number: 00563-DT
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 05/02/2022
• Date Manufacturer Received: 04/25/2022
• Was Device Evaluated by Manufacturer?: Yes
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Treatment: STIMQ NEUROSTIMULATOR SN: (B)(4) LN:SWO210408; WAA SN:001EC02C0D8B, LN:00563-DT