CAS • Clinical Application Specialist
Dr. Sarah Chen
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🚨 Critical Issue Detected
HIGH PRIORITY

SYSTEM SERIAL

6657782

SOFTWARE VERSION

8.1.1.994

PROCEDURE DATE

2025-07-02 17:41

HOSPITAL

Metro General

CATHETER TYPE

QDOT MICRO

ANALYSIS STATUS

✅ Complete

ERROR 106: QDOT FORCE SENSOR ERROR
Force catheter sensor error detected during procedure with QDOT catheter re-insertion. System displayed persistent force measurement errors requiring catheter replacement.
241
Error Occurrences
3:42
Total Duration
2:43
Max Duration
100%
Resolution Rate

📅 Event Timeline

10:33:41
QDOT catheter re-inserted into patient
10:33:42
⚠️ Error 106 triggered - Force catheter sensor error
10:34:15
Cable and TX eco cable reseated by operator
10:34:45
Error cleared but high force warning displayed
10:37:28
✅ Catheter replaced - all errors resolved

🎯 Root Cause Analysis

Primary Cause: Hardware fault in the QDOT catheter's force sensor signal path, likely triggered by re-insertion handling.


Technical Details:

  • Micro-damage to force sensor wires or strain gauge during manipulation
  • Possible connector contamination (blood, saline, condensation)
  • Internal catheter circuit failure due to flexion stress or ESD event

Contributing Factors: Connection instability at PIU, frequent patch disconnections added noise but were not root cause.

💡 Clinical Recommendations

Immediate Action: Quarantine and return failed catheter for manufacturer analysis
Procedure Review: Inspect handling procedures to minimize connector contamination during re-insertion
System Check: Verify all cables and patches are firmly connected before procedure start
Documentation: Log catheter serial numbers and report to J&J quality assurance team