BOSTON SCIENTIFIC CORPORATION ULTRAFLEX TRACHEOBRONCHIAL; PROSTHESIS, TRACHEAL, EXPANDABLE
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Model Number M00576650 |
Device Problems
Break (1069); Adverse Event Without Identified Device or Use Problem (2993); Positioning Problem (3009)
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Patient Problem
No Clinical Signs, Symptoms or Conditions (4582)
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Event Date 08/01/2022 |
Event Type
Injury
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Manufacturer Narrative
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Medical device problem code (b)(4).The ultraflex tracheobronchial stent has not been received for analysis.Upon receipt and completion of the device analysis, if there is any further relevant information from that review, a supplemental medwatch will be filed.
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Event Description
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It was reported to boston scientific corporation that an ultraflex tracheobronchial covered distal release stent was to be implanted in the mid trachea to treat a malignant stenosis and tracheoesophageal (te) fistula during a tracheal stent placement procedure performed on (b)(6) 2022.The patient's anatomy was tortuous.During the procedure, the ultraflex tracheobronchial stent was able to be deployed beside the previously implanted non boston scientific esophageal stent.However, the ultraflex tracheobronchial stent was unable to support the lumen and moved out of its target location.The ultraflex tracheobronchial stent was removed from the patient with a flexible forceps and another ultraflex tracheobronchial stent was implanted to complete the procedure.There were no patient complications reported as a result of this event.The patient's condition following the procedure was reported to be stable.Note: photos of the complaint device outside the patient were provided by the complainant and showed the stent was fully deployed and the green retention suture was found broken.
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Event Description
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It was reported to boston scientific corporation that an ultraflex tracheobronchial covered distal release stent was to be implanted in the mid trachea to treat a malignant stenosis and tracheoesophageal (te) fistula during a tracheal stent placement procedure performed on august 01, 2022.The patient's anatomy was tortuous.During the procedure, the ultraflex tracheobronchial stent was able to be deployed beside the previously implanted non boston scientific esophageal stent.However, the ultraflex tracheobronchial stent was unable to support the lumen and moved out of its target location.The ultraflex tracheobronchial stent was removed from the patient with a flexible forceps and another ultraflex tracheobronchial stent was implanted to complete the procedure.There were no patient complications reported as a result of this event.The patient's condition following the procedure was reported to be stable.Note: photos of the complaint device outside the patient were provided by the complainant and showed the stent was fully deployed and the green retention suture was found broken.
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Manufacturer Narrative
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Block h6: medical device problem code a1502 captures the reportable event of ultraflex tracheobronchial stent positioning issue.Medical device problem code a0401 captures the reportable event of ultraflex tracheobronchial stent suture break.Block h10: an ultraflex tracheobronchial covered distal release delivery system was received for analysis; the stent was not returned.Visual inspection found the shaft bent in different sections.Media analysis was performed on the photo provided by the complainant and it was observed that the retention suture was detached.No other issues were noted to the delivery system.Media analysis confirmed the reported event of stent suture break; however, the reported event of stent positioning issue could not be confirmed as this occurred during the procedure and is not possible to replicate in the laboratory of analysis.A product labeling review identified that the device was used per the directions for use (dfu) / product label.Additionally, stent misplacement is noted within the dfu as a potential adverse event associated with the use of the device.It is likely that the patient's tortuous anatomy could have contributed to the observed event of shaft bent.Furthermore, it is possible that the retention suture was detached during the stent removal procedure.Therefore, review and analysis of all available information indicated the most probable cause is adverse event related to procedure.
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