Leica biosystems received a complaint regarding sub-optimal tissue processing.On (b)(6) 2016, leica biosystems received the following information from the laboratory "there were two skin biopsies of suspected malignancies that were unreadable.They could not be re-biopsied since the original biopsy was the entire lesion.We had to sign the cases out with a disclaimer regarding suboptimal tissue processing.We could not make a definitive diagnosis in these 2 cases." patient information was not provided to leica biosystems, to date.Investigation of this complaint by leica biosystems is in progress and if additional information becomes available a follow up report will be submitted.
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The investigation by leica biosystems concluded that the processing reagent bottle concentration settings had been reset to the manufacturer default settings when a failed hard disk drive (hdd) was replaced by a leica field service engineer.The complainant's customized reagent bottle concentration settings specific to their processing protocol were not transferred over to the new hdd after the replacement was performed and thus led to the sub-optimal tissue processing.Information as to whether medical intervention was required to preclude permanent impairment of a body function or permanent damage to a body structure; and an identifier, gender and age or date of birth for each of the two (2) cases for which a definitive diagnosis could not be made, has been sought.If additional information becomes available another follow up report will be submitted.For additional information regarding the investigation and conclusion, please see manufacturer report 8020030-2017-00004 and follow up #01.
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