AXIOS STENT AND ELECTROCAUTERY ENHANCED DELIVERY SYSTEM

Description of Event or Problem

IT WAS REPORTED TO BOSTON SCIENTIFIC CORPORATION THAT AN AXIOS STENT AND ELECTROCAUTERY-ENHANCED DELIVERY SYSTEM WAS TO BE IMPLANTED TRANSGASTRIC TO THE PANCREAS TO TREAT A PSEUDOCYST DURING A DRAINAGE PROCEDURE PERFORMED ON (B)(6) 2025. DURING THE PROCEDURE, THE FIRST FLANGE OF THE STENT COULD NOT BE DEPLOYED. THE STENT WAS FULLY COVERED BY THE OUTER SHEATH WHEN IT WAS REMOVED FROM THE PATIENT. THE PROCEDURE WAS THEN COMPLETED USING ANOTHER AXIOS STENT. THERE WERE NO PATIENT COMPLICATIONS REPORTED AS A RESULT OF THIS EVENT.

Additional Manufacturer Narrative

BLOCK H6: IMDRF DEVICE CODE A150201 CAPTURES THE REPORTABLE EVENT OF STENT FAILURE TO DEPLOY. BLOCK E1: INITIAL REPORTER PHONE: (B)(6); REPORTED HERE AS THIS EXCEEDED CHARACTER LIMIT FOR THE DESIGNATED FIELD. BLOCK H11: FOLLOWING AN UPDATE TO THE AXIOS RISK DOCUMENTATION, THIS EVENT IS BEING REPORTED AS PART OF THE EFFORTS ASSOCIATED WITH BOSTON SCIENTIFIC'S NONCONFORMING EVENTS AND PREVENTION INVESTIGATION, (B)(4). INVESTIGATION RESULTS: BASED ON THE AVAILABLE INFORMATION, BOSTON SCIENTIFIC COULD NOT CONFIRM THE REPORTED EVENT OF STENT FAILURE TO DEPLOY. THE DEVICE WAS NOT RETURNED FOR ANALYSIS; THEREFORE, A TECHNICAL ANALYSIS COULD NOT BE PERFORMED. TAKING ALL AVAILABLE INFORMATION INTO CONSIDERATION THE INVESTIGATION CONCLUDED THAT THERE IS NOT ENOUGH EVIDENCE TO DETERMINE IF THE REPORTED EVENT OF STENT FAILURE TO DEPLOY WAS DUE TO THE PHYSICIAN'S TECHNIQUE DURING THE PROCEDURE, OR WHETHER IT WAS RELATED TO A DEVICE MALFUNCTION. THE INVESTIGATION FINDINGS DID NOT LEAD TO A DEFINITIVE CONCLUSION REGARDING THE CAUSE OF THE REPORTED EVENT. DEVICE HISTORY RECORD: IT WAS CONFIRMED THIS DEVICE MET MANUFACTURING SPECIFICATIONS PRIOR TO DISTRIBUTION AND THERE WERE NO MANUFACTURING DEVIATIONS WHICH COULD HAVE CONTRIBUTED TO THE REPORTED EVENT. DEVICE TECHNICAL ANALYSIS: THE COMPLAINT DEVICE WAS NOT RETURNED FOR EVALUATION AS IT WAS DISPOSED OF AT CUSTOMER SITE; THEREFORE, A TECHNICAL ANALYSIS COULD NOT BE PERFORMED. RISK REVIEW: A RISK REVIEW WAS COMPLETED AND CONFIRMED THAT THE EVENT OF "STENT FAILURE TO DEPLOY" WAS DEFINED IN THE RISK DOCUMENTATION AND IS DOCUMENTED ACCORDINGLY IN THE PRR. THIS EVENT TYPE HAS BEEN ACCOUNTED FOR DURING PRODUCT RISK ANALYSIS TO SUPPORT ACCEPTABLE RISK BENEFIT FOR THE PRODUCT. INVESTIGATION CONCLUSION: BASED ON A THOROUGH REVIEW OF THE REPORTED COMPLAINT, BOSTON SCIENTIFIC HAS ASSIGNED AN INVESTIGATION CONCLUSION CODE IS CAUSE NOT ESTABLISHED.