MAUDE Adverse Event Report: BIOSENSE WEBSTER INC QDOT MICRO; CATHETER, PERCUTANEOUS, CARDIAC ABLATION, FOR TREATMENT OF ATRIAL FIBRILLATION

Catalog Number	D139501
Medical Device Problem Code	Patient Device Interaction Problem (4001)
Health Effect - Clinical Code	Heart Block (4444)
Date of Event	05/22/2025
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 31543312l and no internal action related to the complaint was 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 a paroxysmal supraventricular tachycardia ablation, and the patient experienced cardiac block that required a planned pacemaker insertion.During ablation near his, a complete cardiac block was confirmed.A pacemaker implantation was planned.The physician's comment on the relationship between the event and the product was that the ablation near his had been performed too much for a long time.There were no abnormalities observed prior to or during use of the product.Contact force (cf) monitoring method used was vector and visitag, visitag color setting was tag index, and additional visitag filter was fot.The physician¿s opinion on the cause of this adverse event was procedure related.The patient required extended hospitalization because of pacemaker implantation.No relevant tests/laboratory data or other relevant history/preexisting condition were noted.

• Brand Name: QDOT MICRO
• Common Device Name: CATHETER, PERCUTANEOUS, CARDIAC ABLATION, FOR TREATMENT OF ATRIAL FIBRILLATION
• 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: 22267193
• Report Number: 2029046-2025-01987
• Device Sequence Number: 7019075
• Product Code: OAE
• UDI-Device Identifier: 10846835016710
• UDI-Public: (01)10846835016710(11)250116(17)280115(10)31543312L
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: P210027
• 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): 06/17/2025

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: D139501
• Device Lot Number: 31543312L
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 05/22/2025
• Initial Report FDA Received Date: 06/18/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 01/16/2025
• 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
• Concomitant Medical Products and Therapy/Usage Dates: 8.5F SHEATH, VIZ SMCURVE, SHORT; NGEN PUMP, JAPAN CONFIGURATION; NGEN RF GENERATOR, JAPAN
• Outcome Attributed to Adverse Event: Required Intervention; Life Threatening; Hospitalization
• Patient Sex: Female
• Patient Ethnicity: Non Hispanic
• Patient Race: Asian