BECTON, DICKINSON AND COMPANY, BD BIOSCIENCES BD FACS¿ LYSE WASH ASSISTANT; STATION, PIPETTING DILUTING CLINICAL USE
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Catalog Number 337146 |
Device Problem
Incorrect, Inadequate or Imprecise Result or Readings (1535)
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Patient Problem
No Clinical Signs, Symptoms or Conditions (4582)
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Event Date 09/05/2023 |
Event Type
malfunction
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Manufacturer Narrative
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E.1.Initial reporter phone#: (b)(6).H.3.A device evaluation and/or device history review is anticipated but is not complete.Upon completion, a supplemental report will be filed.
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Event Description
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It was reported that carryover was observed on patient samples during use with the bd facs¿ lyse wash assistant.The following information was provided by the initial reporter: 2023-09-08: additional information based on fse¿s email: we analyzed two of the three ¿pirs¿- lwas: (b)(6), (b)(4), sn (b)(6), (b)(4).Also lwa with sn (b)(6), (b)(4) was analyzed as a reference for carryover.It was not possible to check also lwa (b)(6), it should be tested.All three lwas were checked for carry over and also for cell loss, using stained whole blood.Carryover off all checked systems was lower than 50 ppm, meet specification.Selective cell loss could not be detected with lysed whole blood in all three systems.A kappa-apc positive population was found in a sample tube during acquisition, but sample has not such population (seen in repeated preparation) pir3011629.
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Event Description
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It was reported that carryover was observed on patient samples during use with the bd facs¿ lyse wash assistant.The following information was provided by the initial reporter: 2023-09-08: additional information based on fse¿s email: we analyzed two of the three ¿pirs¿- lwas: (b)(6) [(b)(4)], sn (b)(6) [8840757].Also lwa with sn (b)(6) [(b)(4)] was analyzed as a reference for carryover.It was not possible to check also lwa (b)(6), it should be tested.All three lwas were checked for carry over and also for cell loss, using stained whole blood.Carryover off all checked systems was lower than 50 ppm, meet specification.Selective cell loss could not be detected with lysed whole blood in all three systems.A kappa-apc positive population was found in a sample tube during acquisition, but sample has not such population (seen in repeated preparation) (b)(4).
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Manufacturer Narrative
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After further evaluation of the complaint, it has been determined that the previously submitted report was sent in error.Customer reported, ¿carryover off all checked systems was lower than 50 ppm, meet specification." fse also confirmed onsite that carryover was (b)(4) and instrument works within specification.Therefore this is not considered to be a reportable malfunction.
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