MAUDE Adverse Event Report: LIVANOVA USA, INC. LEAD MODEL 303

Model Number	303-20
Medical Device Problem Code	High impedance (1291)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	07/17/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Livanova usa, inc.Submits this report to comply with 21 c.F.R.Part 803, the medical device reporting regulation, based on information that livanova has obtained, but may not have been able to investigate or verify prior to the date the report was required by the fda.This report does not constitute an admission, or a conclusion by fda or anyone else, that the device, livanova, or livanova's employees caused or contributed to the event described in the report.In particular, this report does not constitute an admission by anyone that the product described in this report has any "defects¿ or "malfunctions¿.These words are incorporated into the fda 3500a medwatch form by the fda, and livanova objects to their use.
Event or Problem Description
The patient was seen in clinic and presented with high impedance.The patient has since been referred for surgery.Additional information received noting that the patient has not experienced any recent trauma or manipulation, and x-rays were not taken.No known surgical intervention has occurred to date.No other relevant information has been received to date.
Event or Problem Description
Additional information received noting that the patient underwent a generator replacement only on (b)(6) 2025.It was reported that high impedance was seen in pre-op and the surgeon first troubleshooted by reinserting the lead pin and using a test resistor and the impedance was still high.The generator was then replaced, and the impedance was within normal limits.Internal data from the explanted generator was received and reviewed.No known surgical intervention has occurred to date with the lead.
Event or Problem Description
Additional information received noting that the patient had their device disabled due to it going off all the time.
Additional Manufacturer Narrative
B6 relevant tests/laboratory data, including dates, corrected data: initial report inadvertently left out relevant information.

• Brand Name: LEAD MODEL 303
• Common Device Name: LEAD
• Manufacturer (Section D): LIVANOVA USA, INC.; 100 cyberonics boulevard; houston TX 77058
• Manufacturer (Section G): HOUSTON; 100 cyberonics blvd; suite 600; houston TX 77058
• Manufacturer Contact: cindy scott ; 100 cyberonics blvd; suite 600; houston, TX 77058 ; 2816672681
• MDR Report Key: 23038434
• Report Number: 1644487-2025-10601
• Device Sequence Number: 9889385
• Product Code: LYJ
• UDI-Device Identifier: 05425025750115
• UDI-Public: 05425025750115
• Combination Product (Y/N): N
• Initial Reporter State: KY
• Initial Reporter Country: US
• PMA/510(K) Number: P970003
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2019
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Physician Assistant
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 11/04/2025

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: Lay User/Patient
• Device Expiration Date: 03/22/2022
• Device Model Number: 303-20
• Device Lot Number: 204427
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 08/20/2025
• Supplement Date Received by Manufacturer: 09/12/2025; 10/10/2025
• Initial Report FDA Received Date: 09/12/2025
• Supplement Report FDA Received Date: 10/07/2025; 11/04/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 03/27/2018
• 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
• Patient Age: 63 YR
• Patient Sex: Male