MAUDE Adverse Event Report: BIOSENSE WEBSTER INC THERMOCOOL SMARTTOUCH SF; CARDIAC ABLATION PERCUTANEOUS CATHETER

Catalog Number	D134801
Medical Device Problem Code	Patient Device Interaction Problem (4001)
Health Effect - Clinical Code	Stroke/CVA (1770)
Date of Event	04/24/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
An analysis of the product could not be performed since a physical sample was not received for evaluation.A manufacturing record evaluation was performed for the finished device number lot 31766840l and no internal actions related to the complaint were found during the review.As part of our company quality system process, all devices are manufactured, inspected, and distributed to approved specifications.This report is being submitted pursuant to the provisions of 21 cfr, part 803.This report may be based on information which has not been investigated or verified prior to the required reporting date.This report does not reflect a conclusion by biosense webster, inc., or its employees that the report constitutes an admission that the product, biosense webster, inc., or its employees caused or contributed to the potential event described in this report.If information is obtained that was not available for the initial report, a follow-up report will be filed as appropriate.Manufacturer's reference number: (b)(4).
Event or Problem Description
It was reported that a patient underwent an atrial fibrillation ablation with a thermocool smarttouch sf (stsf) and the patient experienced cerebral infarction that required prolonged hospitalization.Approximately one hour after completion of the procedure patient developed a disturbance of consciousness and was diagnosed with a cerebral infarction caused by thrombus.To note, in this procedure, pulmonary vein isolation and posterior wall isolation using pulse field ablation with pulse select were performed, along with cavotricuspid isthmus (cti) line ablation using a stsf.Contact force monitoring methods were: real time graph, dashboard, vector, visitag.Visitag coloring setting was tag index.There were no abnormalities observed prior to, or during use of the product.

• Brand Name: THERMOCOOL SMARTTOUCH SF
• Common Device Name: CARDIAC ABLATION PERCUTANEOUS CATHETER
• Manufacturer (Section D): BIOSENSE WEBSTER INC; 31 technology drive, suite 200; irvine CA 92618
• Manufacturer (Section G): BIOSENSE WEBSTER INC (JUAREZ); circuito interior norte; 1820parque industrial salvacar; juarez 32599 ; MX 32599
• Manufacturer Contact: henry boden ; 31 technology dr; irvine, CA 92618 ; 9497882078
• MDR Report Key: 25249708
• Report Number: 2029046-2026-01647
• Device Sequence Number: 18513975
• Product Code: LPB
• UDI-Device Identifier: 10846835010145
• UDI-Public: (01)10846835010145(17)281009(10)31766840L
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: P030031
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional
• Initial Reporter Occupation: Other
• Type of Report: Initial
• Report Date (Section B): 05/21/2026

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: Health Professional
• Device Catalogue Number: D134801
• Device Lot Number: 31766840L
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 04/24/2026
• Initial Report FDA Received Date: 05/21/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 10/10/2025
• 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: Hospitalization; Life Threatening
• Patient Age: 85 YR
• Patient Sex: Female