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

Model Number M00513840

Device Problems Premature Activation (1484); Material Deformation (2976)

Patient Problem No Consequences Or Impact To Patient (2199)

Event Date 06/19/2019

Event Type  Injury  

Manufacturer Narrative

(b)(6).(b)(4).Although the suspect device has been received, the evaluation has not been completed.Therefore, the cause of the reported malfunction has not been determined.Upon completion of the failure analysis of the complaint device, if there is any further relevant information from that review, a supplemental mdr will be filed.

Event Description

It was reported to boston scientific corporation on (b)(4) 2019 that an ultraflex esophageal ng covered proximal release stent was to be used to treat a 7cm malignant stenosis in the cardia of the stomach during a stent placement procedure performed on (b)(6) 2019.Reportedly, the patient's anatomy was tortuous and was dilated prior to stent placement.According to the complainant, during stent deployment, the shaft kinked and the stent deployed prematurely not in the proper position.The stent was removed with forceps and another ultraflex esophageal stent was used to complete the procedure.There were no patient complications as a result of this event.The patient's condition at the conclusion of the procedure was reported to be stable.

Manufacturer Narrative

Block e1: initial reporter's address1: (b)(6).Block h6: problem code 1484 captures the reportable event of stent prematurely deployed.Block h10: an ultraflex esophageal ng proximal release covered stent, delivery system, and stent deployment suture were received for analysis.Visual examination of the returned device found the stent was received fully deployed off the delivery system.A severe kink at the distal end of the shaft was also noted.The stent was measured to be within specification.No other issues with the stent and delivery system were noted.The damage noted to the returned device was consistent with the excessive force being applied to the delivery system during used.Taking all available information into consideration, the investigtaion concluded that the reported event and the observed failure were likely due to anatomical or procedural factors such as tortuous (tight) anatomy, handling of the device or the technique used by the user during the procedure, which limited the performance of the device.Therefore, the most probable root cause is adverse event related to the procedure.A review of the device history record (dhr) was performed and confirmed that this device met all material, assembly, and performance specifications at the time of release for distribution.

Event Description

It was reported to boston scientific corporation on june 19, 2019 that an ultraflex esophageal ng covered proximal release stent was to be used to treat a 7cm malignant stenosis in the cardia of the stomach during a stent placement procedure performed on (b)(6) 2019.Reportedly, the patient's anatomy was tortuous and was dilated prior to stent placement.According to the complainant, during stent deployment, the shaft kinked and the stent deployed prematurely not in the proper position.The stent was removed with forceps and another ultraflex esophageal stent was used to complete the procedure.There were no patient complications as a result of this event.The patient's condition at the conclusion of the procedure was reported to be stable.

• Brand Name: ULTRAFLEX ESOPHAGEAL NG
• Type of Device: PROSTHESIS, ESOPHAGEAL
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 300 boston scientific way; marlborough MA 01752
• MDR Report Key: 8780712
• MDR Text Key: 150707614
• Report Number: 3005099803-2019-03456
• Device Sequence Number: 1
• Product Code: ESW
• UDI-Device Identifier: 08714729716099
• UDI-Public: 08714729716099
• Combination Product (y/n): N
• PMA/PMN Number: K091816
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: company representative,foreig
• Type of Report: Initial,Followup
• Report Date: 08/26/2019

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 07/11/2019
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Expiration Date: 12/05/2020
• Device Model Number: M00513840
• Device Catalogue Number: 1384
• Device Lot Number: 0023042222
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 07/05/2019
• Date Manufacturer Received: 07/31/2019
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1
• Patient Outcome(s): Required Intervention
• Patient Age: 75 YR
• Patient Weight: 62