A facility reported a microsensor was implanted/tunneled on (b)(6) 2021 and worked for a day with icp of 14 and a good waveform.Then, after returning form a ct scan, the microsensor was not working.The ct did show good placement of the microsensor.The direct link module did not recognize the sensor.A customer tried resuming the direct link and using different icp monitors and nothing worked.They tried switching out cables and reconnecting and it did not resume.However, with a test sensor, the direct link worked fine.It was determined that the microsensor was damaged and it was replaced on (b)(6) 2021.
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