The hospital reported that during a coronary artery bypass procedure, hst iii system (4.3mm) umbrella triggered too early.Umbrella opened before use.No injury, since no use, no effect on the patient.A new hsk device was used and thus completed.
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Trackwise (b)(4).Updated sections: g4, g7, h2, h3, h6, h10.Analysis of production: (3331/213/67) the device history records review concluded that there were no ncmrs, rework, or deviations documented for the reported lot number.Based on the dhr/lhr review results, it was determined that there is no relation between the manufacturing process and the reported failure.Historical data analysis: (4109/213/67) the review of the historical data indicates that no other similar complaints was reported for the same lot number and reported failure mode.Trend analysis: (4110/213/67) the overall 24 month product complaint trend data for the period dec 2019 through nov 2021 was reviewed.There were no triggers identified for the review period.Communication/interviews: (4111/213/67) communication/interviews were performed to obtain all possible information.Testing of actual/suspected device & testing of raw/starting materials: (10 & 4105/13 & 22) the device was returned for evaluation on 12/08/2021.Photographs were provided by the account.A photographic inspection was conducted.The delivery device was observed in he loading device with the seal and tension spring assembly in the loading device window.There were no visible defects observed on the seal.The white plunger was partially visible in the photographs and was observed to be not depressed.The blue side lock was not observed in the photographs.An investigation was conducted on 12/14/2021.A visual inspection was conducted.Signs of clinical use and evidence of blood was observed.The delivery device was returned inside the loading device but not lined up with the "2".Blood was observed on the loading device.The white plunger was not depressed and the blue slide lock was not engaged.The seal was observed in the loading device window.No visible defects were observed on the seal.The delivery device was removed from the loading device with the seal and tension spring assembly remaining inside the loading device.The seal and tension spring assembly was removed from the loading device with no physical or visual defects.No cracks or delamination was observed on the seal.Measurements of the delivery device were taken; the inner diameter was measured at 0.196 inches, the outer diameter was measured at 0.213 inches.The length of the delivery tube was measured at 2.48 inches.The measurement values recorded for the delivery tube were within the tolerance specifications.Based on the returned condition of the device, the reported failure "premature activation" was not confirmed but was confirmed for the analyzed failure "fitting problem".
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