Apparatus and method for processing physiological information

A physiological information processing apparatus comprising:

• a processor;
• a display including a display screen;
• and
• a memory storing computer-readable instructions,
• wherein, when the computer-readable instructions are executed by the processor, the processor causes the physiological information processing apparatus to:
• obtain a set of physiological information data indicative of physiological information of a subject, the physiological information data including blood pressure data,
• obtain a first parameter associated with a vital sign of the subject based on the physiological information data,
• display a first trend graph showing a temporal change in the first parameter in a first display area of the display screen of the display that displays the physiological information of the subject,
• obtain a second parameter associated with an autonomic nerve function of the subject based on blood pressure data, the second parameter being a parameter associated with a low frequency component of a maximum blood pressure variability,
• display a second trend graph showing a temporal change in the second parameter with a threshold indicator bar indicating a threshold value in a second display area of the display screen of the display that displays the physiological information of the subject, wherein the threshold indicator bar is movable higher or lower according to a user input, and the processor is configured to display a notification when the at least second parameter is lower than the threshold value, and
• display event information associated with the subject and event information associated with the physiological information processing apparatus in a third display area of the display screen,
• wherein the first display area, the second display area and the third display area are displayed next to one another such that the first trend graph over a first time axis of the first display area or the second trend graph over a second time axis of the second display area is synchronized with the event information associated with the physiological information processing apparatus over a third time axis of the third display area,
• wherein the event information associated with the subject includes:
• first event information indicative of an occurrence of arrhythmia with a first bar having a width representing a time period during which the arrhythmia occurs in synchronization with the first graph relating to the vital sign and the second trend graph relating to the autonomic nerve function;
• second event information indicative of an abnormality of the first parameter with a second bar having a width representing a time period during which the abnormality of the first parameter occurs in synchronization with the first and second graphs;
• and
• third event information associated with a medical treatment on the subject with a third bar having a width representing a time period during which the medical treatment performed to the subject occurs in synchronization with the first and second graphs, and
• wherein the event information associated with the physiological information processing apparatus indicates an abnormality of the physiological information processing apparatus or a failure of attachment between the physiological information processing apparatus and an external sensor configured to obtain the physiological information data, wherein the event information with the physiological information processing apparatus includes a fourth bar having a width representing a time period during which the abnormality of the physiological information processing apparatus or the failure of attachment between the physiological information processing apparatus and the external sensor.

A physiological information processing method to be executed by a computer, the physiological information processing method comprising steps of:

• (a) obtaining a set of physiological information data indicative of physiological information of a subject, the physiological information data including blood pressure data;
• (b) obtaining a first parameter associated with a vital sign of the subject based on the physiological information data;
• (c) displaying a first trend graph showing a temporal change in the first parameter in a first display area of a display screen;
• (d) obtaining at least one second parameter associated with an autonomic nerve function of the subject based on the blood pressure data, the at least one second parameter being a parameter associated with a low frequency component of a maximum blood pressure variability;
• (e) displaying a second trend graph showing a temporal change in the at least one second parameter with a threshold indicator bar indicating a threshold value in a second display area of the display screen, wherein the threshold indicator bar is movable higher or lower according to a user input, and the processor is configured to display a notification when the at least second parameter is lower than the threshold value;
• and
• (f) displaying event information associated with the subject and event information associated with the physiological information processing apparatus in a third display area of the display screen,
• wherein the first display area, the second display area, and the third display area are displayed next to one another such that the first trend graph over a first time axis of the first display area or the second trend graph over a second time axis of the second display area is synchronized with the event information associated with the physiological information processing apparatus over a third time axis of the third display area,
• wherein the event information associated with the subject includes:
• first event information indicative of an occurrence of arrhythmia with a first bar having a width representing a time period during which the arrhythmia occurs in synchronization with the first graph relating to the vital sign and the second trend graph relating to the autonomic nerve function;
• second event information indicative of an abnormality of the first parameter with a second bar having a width representing a time period during which the abnormality of the first parameter occurs in synchronization with the first and second graphs;
• and
• third event information associated with a medical treatment on the subject with a third bar having a width representing a time period during which the medical treatment performed to the subject occurs in synchronization with the first and second graphs, and
• wherein the event information associated with the physiological information processing apparatus indicates an abnormality of the physiological information processing apparatus or a failure of attachment between the physiological information processing apparatus and an external sensor configured to obtain the physiological information data, wherein the event information with the physiological information processing apparatus includes a fourth bar having a width representing a time period during which the abnormality of the physiological information processing apparatus or the failure of attachment between the physiological information processing apparatus and the external sensor.