Patient Monitor with User-Defined Monitored Parameters

Abstract

In a medical monitoring system ( 10 ), one or more biometric monitors ( 20, 21, 22, 23, 24, 26, 66 ) collect data of a plurality of monitored biometric parameters. An expression evaluator ( 72 ) evaluates a user-defined expression incorporating one or more of the monitored biometric parameters to generate data for a user-defined biometric parameter. A further processing component ( 32, 50, 52, 54, 55, 56, 57, 58, 60, 62, 88 ) performs processing and display of data of at least one parameter selected from the monitored bio-metric parameters and the user-defined biometric parameter. The further processing component operates in the same way regardless of whether the at least one parameter is selected from the monitored biometric parameters or the user-defined biometric parameter.

1 . A medical monitoring system comprising:
 one or more biometric monitors configured to collect samples of a plurality of monitored biometric parameters;   an expression evaluator configured to evaluate a user-defined expression incorporating one or more of the monitored biometric parameters to generate samples of a user-defined biometric parameters; and   a further processing component configured to perform processing and display of samples of at Least one parameter selected from the monitored biometric parameters and the user-defined biometric parameter, the further processing component operating in the same way regardless of whether the at least one parameter is selected from the monitored biometric parameters or the user-defined biometric parameter.   
     
     
         2 . The medical monitoring system as set forth in  claim 1 , wherein the user-defined expression evaluated by the expression evaluator further incorporates at least one patient-specific input as a monitored biometric parameter. 
     
     
         3 . The medical monitoring system as set forth in  claim 2 , wherein the at least one patient-specific input is selected from a group consisting of patient weight, patient age, patient gender, patient disease type, and patient disease severity. 
     
     
         4 . The medical monitoring system as set forth in  claim 1 , wherein the user-defined expression evaluated by the expression evaluator further incorporates at least one clinical monitored biometric parameter received from a network. 
     
     
         5 . The medical monitoring system as set forth in  claim 4 , wherein the at least one clinical monitored biometric parameter received from the network is selected from a group consisting of blood gas data, or lab results obtained via an input/output (I/O) portion from the network. 
     
     
         6 . The medical monitoring system as set forth in  claim 1 , wherein the user-defined biometric parameter includes two or more biometric parameters defined by corresponding two or more user-defined expressions each incorporating one or more of the monitored biometric parameters. 
     
     
         7 . The medical monitoring system as set forth in  claim 1 , wherein the monitored biometric parameters include at least two monitored biometric parameters selected from the group consisting of: heart rate, blood pressure, temperature, blood oxygen saturation (SpO 2 ), and electrocardiographic (ECG) data. 
     
     
         8 . The medical monitoring system as set forth in  claim 1 , wherein an alarm is configured to activate responsive to one or more of (i) the monitored biometric parameters, (ii) the user-defined biometric parameters, (iii) patient-specific input parameters, or (iv) clinical monitored biometric parameters, satisfying a pre-selected alarm criterion. 
     
     
         9 . The medical monitoring system as set forth in  claim 1 , wherein the further processing component comprises:
 a display configured to display trend samples of the at least one parameter selected from the monitored biometric parameters and the user-derived biometric parameters respective to time.   
     
     
         10 . The medical monitoring system as set forth in  claim 9 , wherein the further processing component further comprises:
 a data storage configured to store the samples of each of the monitored biometric parameters and the user-defined biometric parameter using the same data storage format for both the monitored biometric parameters and the user-defined biometric parameter, the display recalling and retrospectively displaying the stored trend samples of the at least one parameter selected from the monitored biometric parameters and the user-derived biometric parameter respective to time.   
     
     
         11 . The medical monitoring system as set forth in  claim 1 , wherein the further processing component comprises:
 a display configured to trend in real-time the samples of the at least one parameter selected from the monitored biometric parameters and the user-derived biometric parameter respective to time.   
     
     
         12 . The medical monitoring system as set forth in  claim 1 , wherein the further processing component comprises:
 a data storage configured to store the samples of each of the monitored biometric parameters and the user-defined biometric parameter using a common data storage format.   
     
     
         13 . The medical monitoring system as set forth in  claim 1 , wherein the further processing component comprises:
 a numeric display configured to display in real-time the samples of the at least one parameter selected from the monitored biometric parameters and the user-derived biometric parameter.   
     
     
         14 . The medical monitoring system as set forth in  claim 1 , further comprising:
 a user interface for user input of the user-defined expression.   
     
     
         15 . The medical monitoring system as set forth in  claim 14 , wherein the user interface comprises at least one of:
 a user-selectable list of the plurality of monitored biometric parameters, and a user-selectable list of functions selectable from a library for incorporation into the user-defined expression.   
     
     
         16 . The medical monitoring system as set forth in  claim 15 , wherein at least some of the selectable functions of the library are functionally dependent upon one or more of the plurality of monitored biometric parameters. 
     
     
         17 . The medical monitoring system as set forth in  claim 15 , wherein the selectable functions of the library include at least a systolic arterial blood pressure (ABPsys) function and a diastolic arterial blood pressure (ABPdia) function. 
     
     
         18 . The medical monitoring system as set forth in  claim 15 , wherein the selectable functions of the library include at least one of a calculus function and a statistical function. 
     
     
         19 . The medical monitoring system as set forth in  claim 15 , wherein the monitored biometric parameters include heart rate and blood pressure, and the user-defined biometric parameter includes a cardiac output parameter defined by the user-defined expression (K 1 /MABP)×(ABPsys−ABPdia)×HR where “HR” denotes the heart rate, and “K 1 ” is a constant factor that is a function of age or disease state, “MABP” denotes a mean arterial blood pressure library function, “ABPsys” denotes a systolic arterial blood pressure library function, and “ABPdia” denotes a diastolic arterial blood pressure library function, and wherein the “MABP”, “ABPsys” and “ABPdia” library functions each receive arterial blood pressure as input. 
     
     
         20 . A medical monitoring system comprising:
 one or more biometric monitors configured to collect data of a plurality of monitored biometric parameters;   an expression evaluator configured to evaluate a user-defined expression incorporating at least one of (i) the monitored biometric parameters, (ii) one or more patient-specific inputs, or (iii) one or more user selected clinical biometric parameters received via a network to generate data for a user-defined biometric parameter; and   a further processing component configured to perform processing and display of data of at least one parameter selected from the monitored biometric parameters, the patient-specific inputs, the user selected clinical biometric parameters and the user-defined biometric parameter, the further processing component operating in the same way regardless of whether the at least one parameter is selected from the monitored biometric parameters, the patient-specific inputs, the user selected clinical biometric parameters, or the user-defined biometric parameter.   
     
     
         21 . A medical monitoring system as set forth in  claim 20 , wherein an input/output I/O portion provides the user-defined biometric parameters throughout the monitoring system. 
     
     
         22 . A medical monitoring method comprising:
 collecting samples of a plurality of monitored biometric parameters from all available sources;   evaluating a user-defined expression incorporating one or more of the monitored biometric parameters to generate samples of a user-defined biometric parameter; and   processing samples of at least one of the monitored biometric parameters and the user-defined biometric parameter, the processing being performed in the same way for both the at least one monitored biometric parameter and for the user-defined biometric parameter.   
     
     
         23 . The medical monitoring method as set forth in  claim 22 , wherein the processing comprises:
 trending the samples of both the at least one biometric parameter and the user-derived biometric parameter respective to time.   
     
     
         24 . A computer device programmed to perform a method including: (i) evaluating a user-defined expression incorporating one or more monitored biometric parameters to generate samples of a user-defined biometric parameter, (ii) processing samples of at least one of the monitored biometric parameters, and (iii) processing the user-defined biometric parameter, the processing operations being performed in the same way both for the samples of the at least one monitored biometric parameter and for the samples of the user-defined biometric parameter.