Patent ID: 11967421
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC G  A  H | IPC G

Claim 12:
13. A monitoring device for generating maintenance alerts, the monitoring device comprising:
a display;
an electronic processor operatively connected with the display; and
a non-transitory storage medium storing instructions readable and executable by the electronic processor to perform a monitoring method for generating maintenance alerts, the monitoring method comprising:
generating decision rules for classifying medical imaging device log data based on whether parameter values of operating parameters of medical imaging device components identified by component identifications (component IDs) in the log data are within operating parameter ranges for the respective operating parameters wherein the operating parameter ranges for the respective operating parameters are extracted from electronic medical imaging device manuals;
applying the decision rules to log data generated by a monitored medical imaging device to detect out-of-range log data generated by the monitored medical imaging device;
controlling the display to present maintenance alerts in response to the detected out-of-range log data wherein the maintenance alerts are associated with component IDs contained in the detected out-of-range log data;
determining accuracy of the presented maintenance alerts based on feedback extracted from a service log of the monitored medical imaging device; and
updating the decision rules based on the determined accuracy of the presented maintenance alerts;

wherein at least one of:
(i) accuracy of a presented maintenance alert is determined based on feedback extracted from the service log of the monitored medical imaging device over a time interval extending from a time of presentation of the maintenance alert to an end time dependent upon a mean time to failure (MTTF) of the medical imaging device component identified by the component ID associated with the maintenance alert; and/or
(ii) the generating of the decision rules further includes parsing text and tables of the electronic medical imaging device manuals to delineate semantic units including at least sentences, list items, and table rows, identifying operating parameters by identifying numeric values and parameter terms that are connected by linking terms or symbols indicative of equality or inequality and associating operating parameters identified by the parameter terms with medical imaging device components whose component IDs occur in the same semantic units as the parameter terms, and determining operating parameter ranges associated with the identified operating parameters based on the numeric values and the equalities or inequalities indicated by the linking terms or symbols.