(b)(4).The device history record (dhr) for 00515048200, lot number z000011419, review noted no related non-conformance's, requests for deviation (rfd), change notices (cn), or any other issues with manufacturing.The dhr review found no issues with the device and all verifications, inspections, and tests were successfully completed.On (b)(6) 2019, it was reported from ichilov that the nurse has observed strange and greyish particles.This was not used for the surgery and an alternate device was opened instead.On (b)(6) 2019, a returned product investigation was performed on the (b)(4).The physical evaluation revealed that the device had a ruptured battery.The results of the returned product investigation have confirmed the reported event.While the returned product investigation confirmed that the (b)(4) batteries had ruptured, it cannot be determined from the information provided what actually caused the reported event.Therefore, based on the information provided, a specific root cause of the reported event cannot be determined.The investigation was based on the information that was provided initially and any information that was obtained throughout the follow-up process.
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