On (b)(6) 2015, the craniotomy procedure using xmax, csr60 and the perforator in question was performed for the patient with meningioma ((b)(6)-year-old female,).After perforation, white burn-like scars were found on the brain surface just under each of all 6 burr holes.According to the surgeon, the patient¿s skull was thick and hard (over 1 cm), and it took about 2 or 3 minutes to perforate each burr hole.Also, csr60 was found heated after the perforation though irrigation had been conducted during the procedure.The perforator had not been reprocessed.There was no problem with the disengagement mechanism and no dura injury was caused.The patient has no sign of any impairment after surgery.
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