The symptom reported was a small redness.The customer removed the device from the affected limb and treated the lesion according to their clinical protocol.No action was necessary to prevent loss of motor function because the injury was minimal.The incident was reviewed by the product development team, expert engineers, product managers and clinical specialists.A technical team was referred to the institution and collected more information about the clinical use of the product, they opened a new sensor to demonstrate how they were using the sensor and appeared it to be correct.According to the information available, it is not possible to say that there is a problem with the led of the device, because the sensor continued to be used after adjustments made by the customer and the problem was not repeated.The intensity of light emission by the led does not vary according to the position in which it is installed.The sensors do not exceed 41 ° c when used in environments with temperatures up to 35° c.Root cause analysis indicates that the reported failure may be related to the method of use and / or installation of the sensors, as well as the clinical condition of the patient.
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