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The device was discarded and not available for evaluation.However, the photos provided confirmed the report.The balloon of the device was observed to be ruptured.While the reported event was confirmed, the exact root cause of the reported issue could not be determined.No further investigation can be performed without return of the complaint device.Balloon rupture is an inherent risk of using this product.Due to the nature of the device and the procedures it is being used for, the reported issue is a known complication of using the device.It is possible that procedural factors/anatomical features such as calcification, or plaque caused/contributed to the reported issue.As stated in the ifu: do not inflate the internal carotid balloon to any greater volume than is necessary to obstruct blood flow for the internal carotid artery.Do not exceed the recommended maximum balloon liquid capacity.Exercise caution when encountering extremely diseased vessels.Arterial rupture or balloon failure due to sharp calcified plaque may occur.Avoid extended or excessive exposure to fluorescent light, heat, sunlight, or chemical fumes to reduce balloon degradation.Deflate the balloons prior to shunt removal.Avoid using excessive force to push or pull the shunt against resistance.The device history record (dhr) for the device was reviewed.The review found no issues during manufacturing or packaging that would cause or contribute to the reported event.The lot passed all qc testing and the lot was found to meet specification required for sale.
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