Some suggestions here – the name of the medical device, the model, the product number, the serial number, warranty period, the provider, under service contract, last inspected/tested/calibrated, disposal date, reason for disposal, cost (full cost, co-payments), associated with insurance or self purchase, estimated life – replacement date can be calculated from the date acquired (I would suggest that the “start date” be changed to this) plus the estimated life, and then calculate the replacement date, and a display calculation of how long has the patient had the device in years and months.