It was reported that during set-up of the device for a cardiopulmonary bypass procedure, that during inspection, the yellow level sensor was false alarming.No problem was confirmed in attached state to the reservoir.The user suspect internal disconnection of the sensor.As a result, an alternative device was employed.The surgical procedure was completed successfully.There was no delay, no blood loss, nor adverse consequences to the patient.
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The reported complaint was confirmed.Data log analysis demonstrates there were several coupled/uncoupled/disconnected messages in the logs.This can be caused by improper coupling, mounting the sensor over an irregularity, or a bad sensor.Logs were not able to determine these factors.Correspondence with the manufacturing engineering center (mec) indicates that the customer is not returning the level sensor.Mec stated they examined the sensor¿s cabling via x-ray and did not see breakage.Script answers do not indicate an issue.The mounting pads were allowed to adhere for over the five minutes minimum recommendation and the proper gel was used in coupling the sensor to the reservoir.The sensors were reported to be mounted in an area free of obstructions, such as labeling or support ribs.No additional action will be taken at this time.
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