MAUDE Adverse Event Report: W. L. GORE & ASSOCIATES, INC. GORE CARDIOFORM ASD OCCLUDER; TRANSCATHETER SEPTAL OCCLUDER

Model Number ASD32A

Device Problem Migration (4003)

Patient Problem Embolism (1829)

Event Date 12/07/2020

Event Type  Injury  

Manufacturer Narrative

The gore® cardioform septal occluder instructions for use state in the section ¿potential device ¿ or procedure-related adverse events¿.Adverse events associated with the use of the occluder may include, but are not limited to: device embolization.

Event Description

It was reported the physician was implanting a 32mm gore® cardioform asd occluder to close an atrial septal defect (asd).The defect measured 14mm by stop flow balloon sizing.At lock release, it was noted that part of the right disc was deployed on the left side of the septum.The physician had difficulty unlocking the device.A great deal of force was applied trying to pull the device back into the delivery catheter.The delivery catheter kinked at the guidewire port.The ptfe loop that the retrieval cord runs through, broke releasing the entire system from the occluder.The retrieval cord did not break.The device was viewed again and looked in a stable position on the septum with the device still locked.The retrieval cord was removed and a few minutes later the device embolized to the left ventricle.The patient was sent to surgery to remove the device and repair the asd.

Manufacturer Narrative

Updated secton b1 and b2.

Manufacturer Narrative

A review of the manufacturing records for the device verified that the lot met all pre-release specifications.The engineering investigation of the returned images stated the following: it was reported that there was difficulty in unlocking the occluder and a great deal of force was applied trying to pull the device back into the delivery catheter.The retrieval loop broke or separated (the retrieval cord did not break), detaching the occluder from the delivery system.The outward deformation of the sides of the guidewire port is consistent with kinking of the tip due to application of significant tension along length of the catheter.The eptfe retrieval loop is no longer intact, but it cannot be determined whether the loop material broke in tension or separated from the eyelet.The findings of the investigation are consistent with the reporting of the event in that the delivery catheter kinked in tension potentially preventing the retrieval of the occluder back into the catheter.Also, the retrieval loop broke or detached which would release the occluder from the delivery system.The root cause of the initial difficulty in unlocking the occluder, and the resistance to retrieval of the occluder into the delivery system leading to kinking the catheter tip and separation of the retrieval loop cannot be determined from the evidence available.There is no clear indication that these reported events were due to the design or manufacture of the device, however the evidence available is limited to the images provided.

• Brand Name: GORE CARDIOFORM ASD OCCLUDER
• Type of Device: TRANSCATHETER SEPTAL OCCLUDER
• Manufacturer (Section D): W. L. GORE & ASSOCIATES, INC.; 1505 n. fourth street; flagstaff AZ 86004
• MDR Report Key: 11079913
• MDR Text Key: 224245737
• Report Number: 2017233-2020-01561
• Device Sequence Number: 1
• Product Code: MLV
• UDI-Device Identifier: 00733132636495
• UDI-Public: 00733132636495
• Combination Product (y/n): N
• PMA/PMN Number: P050006
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Type of Report: Initial,Followup,Followup
• Report Date: 02/16/2021

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 12/28/2020
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Expiration Date: 08/04/2023
• Device Model Number: ASD32A
• Device Catalogue Number: ASD32A
• Was Device Available for Evaluation?: No
• Date Manufacturer Received: 12/07/2020
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1
• Patient Outcome(s): Required Intervention
• Patient Age: 16 YR