A physician reported that when pulling the perforator (id (b)(6) from the cranium after making the first burr hole, the product disassembled.The surgeon thought the cranium was harder than usual.The procedure performed was cerebral compression.The procedure was completed with the same perforator.According to the information provided, it is unknown if any parts fell into the surgical site; it is also unknown the manufacturer of the drill used with the perforator; if the drill was electric or pneumatic.It is also unknown if the perforator clicked in place in the drill or if the recommended spring tests were being performed between each burr hole.
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