BEUDAMED
    FDA Adverse Event Malfunction Summary report: N

    QDOT MICRO

    MDR report key: 25207304 · Received May 18, 2026

    Report

    Report Number
    2029046-2026-01596
    Event Type
    Malfunction
    Date Received
    May 18, 2026
    Date of Event
    March 9, 2026
    Report Date
    May 18, 2026
    Manufacturer
    BIOSENSE WEBSTER INC
    Product Code
    OAE
    UDI-DI
    10846835016758
    PMA / PMN Number
    P210027
    Product Problem
    Yes
    Report Source
    Manufacturer report
    Reporter Location
    US
    Reporter Occupation
    OTHER HEALTH CARE PROFESSIONAL
    Health Professional
    Yes

    Narratives

    Additional Manufacturer Narrative · 0

    THE DEVICE WAS RETURNED TO JOHNSON & JOHNSON MEDTECH (J&J MEDTECH) FOR EVALUATION. FOLLOWING J&J MEDTECH PROCEDURES, A VISUAL INSPECTION AND MAGNETIC TEST OF THE RETURNED DEVICE WERE PERFORMED. VISUAL ANALYSIS REVEALED REDDISH BROWN MATERIAL INSIDE THE PEBAX AND A SEPARATION BETWEEN PEBAX AND ELECTRODE SECTION. THE DEVICE WAS CONNECTED TO THE CARTO 3 SYSTEM, AND IT WAS RECOGNIZED AND VISUALIZED CORRECTLY. NO MAGNETIC ISSUES OR ERRORS WERE OBSERVED. A MANUFACTURING RECORD EVALUATION WAS PERFORMED FOR THE FINISHED DEVICE BATCH NUMBER, AND NO INTERNAL ACTIONS WERE IDENTIFIED. THE REDDISH MATERIAL INSIDE THE PEBAX COULD BE RELATED TO THE MAGNETIC SENSOR ERROR REPORTED BY THE CUSTOMER; THEREFORE, THE CUSTOMER COMPLAINT WAS CONFIRMED. THE ROOT CAUSE OF THE PEBAX DAMAGE IS TRACED TO THE MANUFACTURING PROCESS. THE INSTRUCTIONS FOR USE (IFU) CONTAIN THE FOLLOWING RECOMMENDATIONS: DO NOT SCRUB OR TWIST THE TIP ELECTRODE AS DAMAGE TO THE TIP ELECTRODE BOND MAY OCCUR AND LOOSEN THE TIP ELECTRODE, OR DAMAGE MAY ALSO OCCUR TO THE CONTACT FORCE SENSOR AND AFFECT MEASUREMENT ACCURACY. IN ADDITION, IN ORDER TO PREVENT DAMAGE TO THE CATHETER TIP, VERIFY COMPATIBILITY BETWEEN THE SHEATH AND CATHETER, ADVANCE THE CATHETER THROUGH THE SHEATH PRIOR TO INSERTION. ANY SHEATH < 8.5 F IS CONTRAINDICATED. THIS PRODUCT ISSUE WILL BE ADDRESSED THROUGH THE QUALITY SYSTEM. AN INTERNAL CORRECTIVE ACTION WAS CREATED FOR FURTHER INVESTIGATION OF THE FORCE SENSOR SLEEVE INSOLATION TO PREVENT FLUIDS FROM GETTING INSIDE THE DEVICE. 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 AN IDIOPATHIC VENTRICULAR TACHYCARDIA (IDVT) PROCEDURE AND THE QDOT MICRO¿ CATHETER HAD VERY HIGH MAGNETIC VALUES, "OFF THE CHART," ESPECIALLY WHEN PACING. THE REPORTER ALSO INDICATED THAT THEY WERE UNABLE TO TAKE ANY POINTS, AND THE MAGNET SYMBOL WAS ALSO DISPLAYED IN THE CORNER OF THE SCREEN, INDICATING THEY COULD NOT MAP. THE CABLE FOR THE QDOT MICRO¿ CATHETER WAS REPLACED WITHOUT RESOLUTION. WHEN THE CATHETER WAS REPLACED, THE ISSUE WAS RESOLVED. THE PROCEDURE CONTINUED WITH NO FURTHER ISSUES. THERE WAS NO PATIENT CONSEQUENCE. THIS EVENT WAS ORIGINALLY ASSESSED AS NOT MDR REPORTABLE. THE DEVICE WAS RETURNED TO JOHNSON & JOHNSON MEDTECH (J&J MEDTECH) FOR EVALUATION. FOLLOWING J&J MEDTECH PROCEDURES, A VISUAL INSPECTION AND MAGNETIC TEST OF THE RETURNED DEVICE WERE PERFORMED. VISUAL ANALYSIS REVEALED REDDISH BROWN MATERIAL INSIDE THE PEBAX AND A SEPARATION BETWEEN PEBAX AND ELECTRODE SECTION. THIS FINDING IS MDR REPORTABLE.

    Devices

    Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
    453083 QDOT MICRO CATHETER, PERCUTANEOUS, CARDIAC ABLATION, FOR TREATMENT OF ATRIAL FIBRILLATION OAE BIOSENSE WEBSTER INC 31416843L 10846835016758

    Patients

    Seq Age Sex Outcome Treatment
    1 NA Unknown