Per clinical review: the customer has an advance perfusions system 1 (aps1) that has not been used clinically in over a year.The date of the incidents are unknown, and just a year was given on the occurrence 2015.The information that is available to the manufacturer is very scarce, even after numerous attempts to gather more information.There was not a trained individual performing maintenance or preventive maintenance on the aps1 and its components.The user facility biomedical engineer (biomed) was performing any procedure that needed done on the aps1.The complaint is that the oxygen concentration is 19% but the correct number should be 21%, and they cannot calibrate the electronic patient gas system (epgs).The date of the occurrence was not relayed on to the manufacturer, nor when the occurrence took place for the perfusion team.They have since changed the oxygen sensor, for they are now working with a manufacturer trained biomed.Since the changing of the oxygen sensor, the team has been able to calibrate it.
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