Decision support system for lung ventilator settings

Abstract

The present invention relates to a ventilator system capable of displaying complex information patterns in a GUI, thereby allowing a clinician to get subtract complex information from multiple parameters inputs.

1 . A mechanical ventilation system ( 10 ) for respiration aid of an associated patient ( 5 , P), the system being adapted for providing decision support for choosing a ventilation strategy of said associated patient, the system comprising:
 ventilator means ( 11 , VENT) capable of mechanical ventilating said associated patient with air and/or one or more medical gases;   control means ( 12 , CON), the ventilator means being controllable by said control means by operational connection thereto (Vt_set);   first measurement means ( 11   a,  M_G) arranged for measuring parameters of inspired gas ( 6   a ) of said associated patient, the first means being capable of delivering first data (D 1 ) to said control means;   optionally, second measurement means ( 11   b,  M_G) arranged for measuring the respiratory feedback of said associated patient in expired gas ( 6   b ), the second means being capable of delivering second data (D 2 ) to said control means;   third measurement means ( 20 , M_B), arranged for measuring one or more blood values of said associated patient, the third means being capable of delivering third data (D 3 ) to said control means,   the control means applying a set of preference functions (CPF) to convert the first data (D 1 ), the third data (D 3 ), and optionally the second data (D 2 ), of the associated patient into corresponding scoring values (S 1 , . . . , S 6 );   the system comprising a graphical user interface (GUI,  13 ) with a multi-dimensional coordinate system ( 14 ), wherein at least one pair of scoring values is arranged for being displayed in the coordinate system, wherein each pair of scoring values comprises   a first scoring value (S 1 , S 2 , S 6 ) being a translated variable related to over-ventilation of the associated patient, the first scoring value being displayed at an axis indicative of over-ventilation in a first direction (OV) in the GUI, the first scoring value being displayed at a distance from a first starting point (O) corresponding to the first scoring value, and   a second scoring value (S 3 , S 4 , S 5 ) being a translated variable related to under-ventilation of the associated patient, the second scoring value being displayed at an axis being indicative of under-ventilation in a second direction (UV) in the GUI, the second scoring value being displayed at a distance from a second starting point (O) corresponding to the second scoring value.   
     
     
         2 . The system according to  claim 1 , wherein each pair of plotted scoring values have a common starting point (O) in the multi-dimensional coordinate system. 
     
     
         3 . The system according to  claim 1  or  2 , wherein the scoring values displayed closer to the starting point is indicative of lower associated patient risk than values plotted at greater distance from the starting point. 
     
     
         4 . The system according to any of the preceding claims, wherein the scoring values of a pair are displayed in opposite directions. 
     
     
         5 . The system according to any of the preceding claims, the multi-dimensional coordinate system has an outer shape being a polygon, each corner in the polygon and the center (O) of the polygon representing an axis of the scoring values (S 1 , . . . , S 6 ), along which axis the scoring values are plotted. 
     
     
         6 . The system according to  claim 5 , wherein the polygon has an equal number of corners, such as 2-20 corners, such as 2-10 corners such as 2-8 corners, such as 4-6 corners, or such as 6 corners. 
     
     
         7 . The system according to any of  claims 1 - 4 , wherein the multi-dimensional coordinate system is a circle or circular shape, such as an oval, and wherein the circumference of the circle or circular shape and the center of the circle or circular shape representing an axis of the scoring parameters (S 1 , . . . , S 6 ) along which the scoring parameter are plotted/displayed. 
     
     
         8 . The system according to any of  claims 1 - 4 , wherein the starting point for each pair begins at different points at a line in the multi-dimensional coordinate system dividing the coordinate system into two half's, one half indicative of over-ventilation of the associated patient and the second half indicative of under-ventilation of the associated patient. 
     
     
         9 . The system according to  claim 8 , wherein the GUI presents a value and/or indicator for the area formed. 
     
     
         10 . The system according to any of the preceding claims, wherein the converted scoring values represents patient risk values wherein all patient risk values have been normalized to have comparable patient risk values. 
     
     
         11 . The system according to any of the preceding claims, wherein the coordinate system is divided by a line through the center, dividing the coordinate system into two half's, one half indicative of over-ventilation of the associated patient and the second half indicative of under-ventilation of the associated patient. 
     
     
         12 . The system according to any of the preceding claims, wherein the neighbouring displayed scoring values are connected with lines/curves forming an area ( 15 ) in the GUI. 
     
     
         13 . The system according to any of the preceding claims, wherein the system is arranged for presenting an overview over scoring values and/or areas ( 15 ) determined at earlier time points. 
     
     
         14 . The system according to any of the preceding claims, wherein decreasing areas ( 15 ) over time, is indicative of improved ventilation parameters and wherein increasing areas ( 15 ) over time is indicative of suboptimal ventilation parameters. 
     
     
         15 . The system according to any of the preceding claims, wherein the system is arranged to output scoring values and/or areas ( 15 ) in the GUI based on suggested input ventilation parameters by a user. 
     
     
         16 . The system according to any of the preceding claims, wherein the system is arranged to output an advice for a ventilation strategy of the associated patient and display modelled scoring values and/or areas ( 15 ) based on said advice, the system using a physiological model (MOD) to generate said advice. 
     
     
         17 . The system according to any of the preceding claims, wherein the pairs of scoring values are selected from the group consisting of:
 mechanical lung trauma vs. acidosis;   oxygen toxicity vs. low oxygenation;   stress vs. ventilator dependency;   Volutrauma vs. atelectrauma and/or   Alveolar derecruitment vs heamodynamic adverse effects of high ventilator pressure.   
     
     
         18 . The system according to any of the preceding claims, wherein the pairs of scoring values are selected from the group consisting of:
 mechanical lung trauma vs. acidosis;   oxygen toxicity vs. low oxygenation; and/or   stress vs. ventilator dependency.   
     
     
         19 . The system according to any of the preceding claims, wherein the system is arranged for receiving one or more therapeutic input parameters relating to the associated patient, wherein the system is arranged to recalibrate the preference functions (CPF) based on said therapeutic input parameters, thereby recalibrating the scoring values generated by the system. 
     
     
         20 . The system according to  claim 19 , wherein the system is adapted for changing the weighing of each preference function based on the therapeutic input parameters. 
     
     
         21 . The system according to  claim 19  or  20 , wherein the therapeutic input parameters are selected from the group consisting of information on head trauma, age, sex, clinical history, medication, and/or associated patient group. 
     
     
         22 . The system according to any of the preceding claims, wherein the colouring of lines and/or areas are indicative of the total patient risk. 
     
     
         23 . The system according to any of the preceding claims, wherein the colouring of lines and/or areas are indicative of extra patient risk in addition to risks presented on the axes. 
     
     
         24 . A computer system ( 12 ,  13 ) for cooperating with, and optionally controlling, an associated mechanical ventilation system ( 10 ) for respiration aid of an associated associated patient ( 5 , P), the computer system being adapted for providing decision support for choosing a ventilation strategy of said associated patient, the associated mechanical ventilation system comprising:
 ventilator means ( 11 , VENT) capable of mechanical ventilating said associated patient with air and/or one or more medical gases;   first control means ( 12 , CON), the ventilator means being connectable to said first control means by operational connection thereto (Vt_set);   first measurement means ( 11   a,  M_G) arranged for measuring parameters of inspired gas ( 6   a ) of said associated patient, the first means being capable of delivering first data (D 1 ) to said first control means;   optionally, second measurement means ( 11   b,  M_G) arranged for measuring the respiratory feedback of said associated patient in expired gas ( 6   b ), the second means being capable of delivering second data (D 2 ) to said first control means;   third measurement means ( 20 , M_B), arranged for measuring one or more blood values of said associated patient, the third means being capable of delivering third data (D 3 ) to said first control means,   the computer system comprising:   second control means applying a set of preference functions (CPF) to convert the first data (D 1 ), the third data (D 3 ), and optionally the second data (D 2 ), of the associated patient into corresponding scoring values (S 1 , . . . , S 6 ); and   a graphical user interface (GUI,  13 ) with a multi-dimensional coordinate system ( 14 ), wherein at least one pair of scoring values is arranged for being displayed in the coordinate system, wherein each pair of scoring values comprises   a first scoring value (S 1 , S 2 , S 6 ) being a translated variable related to over-ventilation of the associated patient, the first scoring value being displayed at an axis indicative of over-ventilation in a first direction (OV) in the GUI, the first scoring value being displayed at a distance from a first starting point (O) corresponding to the first scoring value, and   a second scoring value (S 3 , S 4 , S 5 ) being a translated variable related to under-ventilation of the associated patient, the second scoring value being displayed at an axis being indicative of under-ventilation in a second direction (UV) in the GUI, the second scoring value being displayed at a distance from a second starting point (O) corresponding to the second scoring value.   
     
     
         25 . A computer program product being adapted to enable a computer system comprising at least one computer having data storage means in connection therewith to cooperate with a mechanical ventilation system ( 10 ) for respiration aid of an associated patient ( 5 , P) according to  claim 24 .