Medtronic received a report that the first pipeline reached the target location with the marksman microcatheter.
However, during the deployment process, the pipeline failed to open in the distal segment.
The surgeon followed the instructions, re-sheathed, and redeployed the stent more than twice, then waited for more than 10 minutes each time.
The slack in the system was released as well, but the stent still would not open.
More than 50% had been deployed, the stent was not in a bend, and no additional steps were taken to open the device.
It was also stated the stent became locked up in the distal segment of the marksman even though a continuous flush was used.
There was no damage to the pipeline pushwire.
The devices were removed from the patient.
A new pipeline, and marksman of the same model/lot# were used, but the second pipeline became stuck at the distal end of the marksman during delivery.
The slack was released in the system, but the issue did not resolve.
The distal segment of the second marksman became accordioned, and there was no damage to the pipeline pushwire.
Replacement products were used again, and the procedure was completed without issue.
It was indicated that all devices were prepared as per the instructions for use (ifu), and no patient symptoms or further complications were reported as a result of this event.
Post-procedure angiographic results showed the blood flow diversion was satisfied.
The patient was undergoing surgery for treatment of a saccular, unruptured aneurysm of the cavernous sinus segment with a max diameter of 7.
88 mm and a 5.
18 mm neck diameter.
It was noted the patient's vessel tortuosity was moderate.
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