An alarm issue was reported with the adc device in use with samsung a51 phone with android operating system version 9.Customer experienced a signal loss and was unable to obtain readings and receive glucose alarms.As a result, customer was not alerted of changes in glucose level and experienced hypoglycemic shock, a loss of consciousness and was unable to self-treat, requiring treatment of glucose injection from a healthcare professional.There was no report of death or permanent impairment associated with this event.
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The most probable root causes associated with this failure mode are disconnected, faulty or damaged components, software/data corruption, or misuse.However, mitigations are in place to reduce and prevent such issues.All vital manufacturing steps are validated, monitored, and verified during manufacturing to ensure the system is in conformance with the verified design.All vital functions are monitored by the system and, when necessary, function is suspended to safeguard against inaccurate results.Labeling is provided to instruct the user on the intended use of all vital parts of the system to minimize misuse.All complaints and complaint trends are investigated to determine if there is a product defect/ deficiency.If a product defect/ deficiency is identified, a risk evaluation is completed and compared to the risk management report, to ensure the risk profile has not changed.Additionally, as a part of abbott¿s post-market surveillance process, all risk evaluations with associated complaint data are reviewed annually to determine if the risk profiles have changed as compared to the product risk management reports.These monitoring processes ensure that all product risk profiles remain acceptable and have a positive benefit/ risk ratio.At this time, product has not yet been returned.An extended investigation has been performed for the reported complaint and determined that there was no indication that the product did not meet specification.The dhrs (device history record) for the libre sensor and sensor kit were reviewed, and the dhrs showed the libre sensor and sensor kit passed all tests prior to release.If the product is returned, a physical investigation will be performed and a follow-up report submitted.The most probable root causes associated with this failure mode are software/data corruption or misuse.However, mitigations are in place to reduce and prevent such issues.All vital functions are monitored by the system and, when necessary, function is suspended to safeguard against inaccurate results.Labeling is provided to instruct the user on the intended use of all vital parts of the system to minimize misuse.All complaints and complaint trends are investigated to determine if there is a product defect/ deficiency.If a product defect/ deficiency is identified, a risk evaluation is completed and compared to the risk management report, to ensure the risk profile has not changed.Additionally, as a part of abbott¿s post-market surveillance process, all risk evaluations with associated complaint data are reviewed annually to determine if the risk profiles have changed as compared to the product risk management reports.These monitoring processes ensure that all product risk profiles remain acceptable and have a positive benefit/ risk ratio.The customer experienced signal loss alarm with the freestyle librelink application.The reported issue was investigated and attempted to be replicated.Per the abbott diabetes care compatibility guide for the freestyle librelink app, the reported configuration of the device samsung galaxy a51 is not compatible with the freestyle librelink app.The latest revision of the compatibility guide is available to the customer on the abbott diabetes care website.All pertinent information available to abbott diabetes care has been submitted.
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