MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION WALLFLEX ESOPHAGEAL; PROSTHESIS, ESOPHAGEAL

Model Number	M00516730
Medical Device Problem Code	Migration (4003)
Health Effect - Clinical Code	No Code Available (3191)
Date of Event	09/17/2020
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
(b)(4).The complainant indicated that the device remains implanted and will not be returned for evaluation; therefore, a failure analysis of the complaint device could not be completed.If any further relevant information is identified, a supplemental medwatch will be filed.
Event or Problem Description
It was reported to boston scientific corporation on (b)(6) 2020 that a wallflex esophageal fully covered stent was implanted to treat a 3cm malignant stricture in the esophagus during an esophagogastroduodenoscopy (egd) with stent placement performed on (b)(6) 2020.Reportedly, the patient's anatomy was not tortuous and was not dilated prior to stent placement.According to the complainant, two days after the stent placement during a routine follow-up procedure, a nasogastric tube was placed and it was noted under kidney, ureter, bladder (kub) imaging that the stent had migrated.On (b)(6) 2020, an egd procedure was performed and the stent was repositioned with rat tooth forceps and sutured in place.The stent remains implanted and the procedure was completed with original stent.There were no patient complications reported as a result of this event.The patient's condition at the conclusion of the procedure was reported to be fine.

• Brand Name: WALLFLEX ESOPHAGEAL
• Common Device Name: PROSTHESIS, ESOPHAGEAL
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 300 boston scientific way; marlborough MA 01752
• MDR Report Key: 10652751
• Report Number: 3005099803-2020-04507
• Device Sequence Number: 4283593
• Product Code: ESW
• UDI-Device Identifier: 08714729778066
• UDI-Public: 08714729778066
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: K091510
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2020
• Reporter Type: Manufacturer
• Report Source: company representative,health
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 10/08/2020

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Expiration Date: 12/02/2021
• Device Model Number: M00516730
• Device Catalogue Number: 1673
• Device Lot Number: 0025557094
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 09/17/2020
• Initial Report FDA Received Date: 10/08/2020
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 70 YR
• Patient Weight: 47