BEUDAMED
    FDA Adverse Event Malfunction Summary report: N

    QDOT MICRO

    MDR report key: 24285320 · Received February 6, 2026

    Report

    Report Number
    2029046-2026-00407
    Event Type
    Malfunction
    Date Received
    February 6, 2026
    Date of Event
    October 16, 2025
    Report Date
    February 6, 2026
    Manufacturer
    BIOSENSE WEBSTER INC
    Product Code
    OAE
    UDI-DI
    10846835017052
    PMA / PMN Number
    P210027
    Product Problem
    Yes
    Report Source
    Manufacturer report
    Reporter Location
    CH
    Reporter Occupation
    OTHER

    Narratives

    Additional Manufacturer Narrative · 0

    THE ¿SUSPECTED MEDICAL DEVICE¿ REPORTED IN SECTION D OF THIS REPORT IS NOT MARKETED IN USA OR APPROVED BY THE FDA. HOWEVER, IT IS BEING REPORTED AS BIOSENSE WEBSTER CONSIDERS THIS AS A SIMILAR DEVICE TO QDOT MICRO APPROVED UNDER P210027. THE DEVICE EVALUATION DETAILS. THE DEVICE WAS RETURNED TO JOHNSON & JOHNSON MEDTECH (J&J MEDTECH) FOR EVALUATION 07-JAN-2026. VISUAL INSPECTION AND SCREENING TEST OF THE RETURNED DEVICE WERE PERFORMED FOLLOWING J&J MEDTECH PROCEDURES. VISUAL ANALYSIS REVEALED A HOLE AND REDDISH MATERIAL INSIDE THE PEBAX. THE FORCE FEATURE WAS TESTED AND NO ERRORS WERE OBSERVED. THE FORCE VALUES AND THE VECTOR WERE OBSERVED WITHIN SPECIFICATIONS. NO FORCE ISSUES WERE OBSERVED. A MANUFACTURING RECORD EVALUATION WAS PERFORMED AND NO INTERNAL ACTIONS RELATED TO THE REPORTED COMPLAINT CONDITION WERE IDENTIFIED. THE REDDISH MATERIAL INSIDE THE PEBAX COULD BE RELATED TO THE FORCE SENSOR ERROR REPORTED BY THE CUSTOMER; THEREFORE, THE CUSTOMER COMPLAINT WAS CONFIRMED. THE POTENTIAL CAUSE OF THE PEBAX DAMAGE COULD BE RELATED TO THE MANIPULATION OF THE DEVICE DURING THE PROCEDURE; HOWEVER, THIS COULD NOT BE CONCLUSIVELY DETERMINED. THE INSTRUCTIONS FOR USE (IFU) OF THE CARTO 3 SYSTEM CONTAIN THE FOLLOWING RECOMMENDATIONS: THE FORCE SENSOR OF THE CATHETER IS DISCONNECTED. IF THE PROBLEM PERSISTS, REPLACE THE CATHETER CABLE OR THE CATHETER; THE INSTRUCTION FOR USE OF THE DEVICE CONTAIN THE FOLLOWING RECOMMENDATIONS: ZERO THE CONTACT FORCE READING FOLLOWING INSERTION OF THE CATHETER INTO THE PATIENT. THE TIP ELECTRODE AND ALL FOUR RING ELECTRODES ON THE CATHETER TIP MUST BE OUTSIDE OF THE SHEATH SO THAT THE FORCE SENSOR IS INSIDE THE BODY. VARIATIONS IN THE FORCE READING AT THE SAME RATE AS THE CARDIAC OR RESPIRATION CYCLE MAY INDICATE CONTACT WITH CARDIAC STRUCTURES. WHEN THESE MARKERS INDICATE THE CATHETER TIP IS NOT IN CONTACT, THE READING CAN BE ZEROED. DO NOT SCRUB OR TWIST THE TIP ELECTRODE BECAUSE DAMAGE TO THE TIP ELECTRODE BOND MAY OCCUR AND LOOSEN THE TIP ELECTRODE, OR DAMAGE THE CONTACT FORCE SENSOR AND AFFECT MEASUREMENT ACCURACY. AS PART OF JOHNSON & JOHNSON MEDTECH¿S QUALITY PROCESS, ALL DEVICES ARE MANUFACTURED, INSPECTED, AND RELEASED 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).

    Description of Event or Problem · 0

    IT WAS REPORTED THAT A PATIENT UNDERWENT A PAROXYSMAL ATRIAL FIBRILLATION PROCEDURE WITH A QDOT MICRO CATHETER FOR WHICH BIOSENSE WEBSTER¿S PRODUCT ANALYSIS LAB (PAL) IDENTIFIED A HOLE INSIDE THE PEBAX. THE 106 ALERT CODE OCCURRED AFTER THE CATHETER WAS PLUGGED INTO THE CARTO AND BEFORE FIRST ABLATION (OUT-OF-BOX FAILURE). A SECOND DEVICE WAS USED TO COMPLETE THE PROCEDURE. THERE WAS NO ADVERSE EVENT REPORTED ON THE PATIENT. CATHETER WAS NOT USED IN THE PATIENT. THE BIOSENSE WEBSTER, INC. PRODUCT ANALYSIS LAB RECEIVED THE DEVICE FOR EVALUATION AND PER THE EVALUATION COMPLETION ON 12-JAN-2026, OBSERVED A HOLE AND REDDISH MATERIAL INSIDE THE PEBAX. THE EVENT WAS ORIGINALLY CONSIDERED NON-REPORTABLE, HOWEVER, BWI BECAME AWARE OF A HOLE INSIDE THE PEBAX ON 12-JAN-2026 AND HAVE ASSESSED THIS RETURNED CONDITION AS REPORTABLE.

    Devices

    Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
    345524 QDOT MICRO CATHETER, PERCUTANEOUS, CARDIAC ABLATION, FOR TREATMENT OF ATRIAL FIBRILLATION OAE BIOSENSE WEBSTER INC 31578918L 10846835017052

    Patients

    Seq Age Sex Outcome Treatment
    1 NA Unknown UNK_CARTO 3.