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W.L. GORE & ASSOCIATES AORTIC TAG THORACIC ENDOPROSTHESIS (CTAG WITH ACTIVE CONTROL); SYSTEM, ENDOVASCULAR GRAFT, AORTIC ANEURYSM TREATMENT
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| Model Number |
TGMR404010 |
| Medical Device Problem Code |
Activation Problem (4042)
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| Health Effect - Clinical Code |
No Consequences Or Impact To Patient (2199)
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| Date of Event |
12/09/2019
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Type of Reportable Event
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Malfunction
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Event or Problem Description
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On (b)(6) 2019, this patient underwent endovascular repair of an aortic dissection using conformable gore® tag® thoracic endoprosthesis with active control®.During preparation of the device on the back table, it was reported that the packaging sheaths on the device were extremely difficult to remove.It was noticed during flushing of the device that it appeared a suture on the constrained device looked "stretched".It was decided that the device would be used.The device was then advanced into the desired location.It was reported that the patient had very straight anatomy.There was no resistance in advancing and positioning of the device.The deployment sequence was then initiated.The gray primary deployment handle was turned 90 degrees counter-clockwise and the physician pulled the handle.While the handle was being pulled, it was noticed on imaging that the device did not seem to be deploying.The physician kept pulling, but the device would not deploy.The physician reported that when approximately two feet of deployment line had been pulled from the delivery handle, the line became tight, and then "snapped".The device did not deploy.The device was then removed from the patient, and another device was used.The device and delivery catheter have been returned to gore for engineering evaluation.The results of the evaluation will be included in a follow-up report.
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Additional Manufacturer Narrative
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The device evaluation showed the following: the primary deployment line was broken in the second slip knot (in the order deployed) on the proximal end of the device.The woven loop of the deployment line and first slip knot had been undone.No stitches of the primary deployment sleeve were undone.The surface on the broken fiber is indicative of the fiber failing in tension which aligns with the reported tightening in the event description.The findings of the evaluation are consistent with the physician¿s observation that the primary deployment line was removed but the device did not deploy.The reason for the device not deploying to intermediate diameter is that the primary deployment line broke at the second slip knot on the proximal end of the device before primary deployment could begin.The fiber appears to have broken in tension.The root cause for the break in the fiber could not be determined with the currently available information.Due to the reported resistance, manufacturing may have contributed to the deployment failure.However, no manufacturing deficiency could be confirmed.The worst case severity of harm associated with the potential failure mode of primary sleeve deployment cannot be initiated is minor, as well as the identified risks are unlikely to be related to the event, therefore a capa request is not required.H6: results code 2, conclusion code 2.
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