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Intuitive surgical, inc.(isi) received the da vinci product to perform failure analysis.The potts scissors instrument was analyzed and found to have a broken distal pitch cable at the proximal clevis hole.The cable was fully broken.As a result of the full break, functional testing for motion related issues cannot be performed.There was no discoloration, corrosion, or contamination on the cable to suggest improper reprocessing as a contributing factor.Further inspection found no abnormally sharp or damaged components that could have contributed to the cable breaking.Common causes of broken - distal instrument pitch cables, whether partial or full, are attributed to damage to the cable through external collisions, during transport and/or storage, during use, or during reprocessing.
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