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Model Number M00516730 |
Device Problems
Use of Device Problem (1670); Detachment of Device or Device Component (2907); Material Deformation (2976)
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Patient Problem
No Clinical Signs, Symptoms or Conditions (4582)
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Event Date 03/06/2024 |
Event Type
malfunction
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Manufacturer Narrative
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Blocks d4, h4: the complainant was unable to provide the suspect device lot number; therefore, the lot expiration and device manufacture dates are unknown.Block h6: imdrf device code a0501 captures the reportable event of tip detached.
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Event Description
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It was reported to boston scientific corporation that a wallflex esophageal fully covered stent was used in the gastroesophageal junction to treat a post-surgical leak during an esophagogastroduodenoscopy (egd) with stent placement procedure performed on (b)(6) 2024.The patient's anatomy was not tortuous and was not dilated prior to stent placement.During the procedure, while loading the stent over the guidewire, the white rubber cone at the end of the stent was detached.The procedure was completed with another wallflex esophageal stent.There were no patient complications reported as a result of this event.Note: it was reported that the wallflex esophageal stent was used to treat a post-surgical leak.However, per the wallflex esophageal fully covered stent system instructions for use (ifu), the stent is intended for maintaining esophageal luminal patency in esophageal strictures caused by intrinsic and/or extrinsic malignant tumors, and occlusion of concurrent esophageal fistulas.The device is not indicated for the treatment of leakage.
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Event Description
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It was reported to boston scientific corporation that a wallflex esophageal fully covered stent was used in the gastroesophageal junction to treat a post-surgical leak during an esophagogastroduodenoscopy (egd) with stent placement procedure performed on (b)(6) 2024.The patient's anatomy was not tortuous and was not dilated prior to stent placement.During the procedure, while loading the stent over the guidewire, the white rubber cone at the end of the stent was detached.The procedure was completed with another wallflex esophageal stent.There were no patient complications reported as a result of this event.Note: it was reported that the wallflex esophageal stent was used to treat a post-surgical leak.However, per the wallflex esophageal fully covered stent system instructions for use (ifu), the stent is intended for maintaining esophageal luminal patency in esophageal strictures caused by intrinsic and/or extrinsic malignant tumors, and occlusion of concurrent esophageal fistulas.The device is not indicated for the treatment of leakage.
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Manufacturer Narrative
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Blocks d4, h4: the complainant was unable to provide the suspect device lot number; therefore, the lot expiration and device manufacture dates are unknown.Block h6: imdrf device code a0501 captures the reportable event of tip detached.Block h10: a wallflex esophageal fully covered stent and delivery system were received for analysis.The stent was received fully covered and undeployed.Visual inspection found the tip detached and was not returned.The outer sheath was kinked, and the stainless steel was bent.No other problems were noted with the stent and delivery system.Product analysis confirmed the reported event of tip detachment of device or device component.A product labeling review identified that the device was not used in accordance with the instructions for use (ifu) / product label.It was reported that the wallflex esophageal stent was used to treat a post-surgical leak.However, the ifu states, "the stent is intended for maintaining esophageal luminal patency in esophageal strictures caused by intrinsic and/or extrinsic malignant tumors, and occlusion of concurrent esophageal fistulas." it is most likely that procedural factors such as lesion characteristics, handling of the device, and the technique used by the physician (force applied) may have resulted in the reported event of tip detached and observed events of outer clear sheath kinked and stainless steel bent.Therefore, a review and analysis of all available information indicated the most probable cause is adverse event related to procedure.
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Search Alerts/Recalls
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