B3.Date of event: month and year of event have been provided, but day is unknown.There were multiple medical device types reported to be involved.The information for the additional device type is as follows: d.2.Common device name: filter, bacterial, breathing-circuit d.2.Medical device type: cah d4.Lot number, expiration date, udi, and h4.Manufacture date are unknown, as the reported lot# 231124 was not found for the reported catalog# ca13b0/4k2/000jp.D5.Other operator of device: operator of device is unknown.Investigation including root cause analysis is in progress.A supplemental mdr will be filed as necessary in accordance with 21 cfr 803.56 when additional reportable information becomes available.
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