H4 manufacturing date ¿ added.D4 expiration date - added.Based on the results of the device history record (dhr) review, there is no indication that the device, labeling or packaging failed to meet its specifications when released.The subject device is not available; therefore, visual testing as well as functional testing cannot be performed.The reported event is covered in the device directions for use (dfu) as an anticipated outcome as part of these procedures.The reported complaint could not be confirmed, and it could not be definitively determined if the device failed to meet specifications because the product was not returned.It was reported that after the acute thrombectomy case the operator found m2 stenosis in situ, so used cat6 to do aspiration and then used gateway 2.0*15 balloon to dilate.After that the vascular intima tearing(possibly related to the balloon dilation) was noticed so decided to deploy a stent.As the risk of vessel dissection's is outlined in the dfu, as unanticipated complication associated with these type of procedures, and there is no device related root cause, an assignable cause of anticipated procedural complication will be assigned to this complaint 'patient vessel dissection'.
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