Upon completion of the investigation, it was noted that the cottonoid is formed from a rayon material.During processing this rayon material is broken down into small, loose fibers.If the fibers do not break down enough, a small cluster of fibers can result.This in turn creates a thick spot in the pattie.When the string is ultrasonically welded on this spot it absorbs more energy than the rest of the pattie and results in a burn.Since the marking is from burnt rayon material, it would not affect the patient during surgery.Based on the results of this investigation no further action is required.Trends will be monitored for this and similar complaints.At the present time, this complaint is closed.
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