Medical data display method
First Claim
1. A method of evaluating patient specific data from a medical monitor which measures patient vital signs readable as individual data readings having a value as of a particular relevant time comprising of the steps of:
- a) selecting individual data readings;
b) setting a subgroup number as the number of measurements in subgroups;
c) grouping the data readings so that a number of readings equal to the subgroup number are grouped into consecutive subgroups as subgroup data;
d) determining at least one control chart statistic for each of the subgroups;
e) determining a correlation value for correlation between at least two individual data readings;
f) determining at least one control chart limit;
g) determining at least one correcting factor for modifying the at least one control chart limit relative to the correlation value;
h) modifying the at least one control chart limit using the at least one correcting factor to obtain a modified chart limit;
i) displaying the at least one control chart statistic for the patient specific data in conjunction with the at least one modified chart limit.
0 Assignments
0 Petitions
Accused Products
Abstract
The invention is a method of measuring patient data, determining statistics from the data; determining measures of variation within the data, determining from the measures of variation a measure of homeostasis, modifying control chart limits based on the determined measure of homeostasis and displaying the statistic on the modified control chart. In addition, the control charts are modified as data varies over time in statistically significant groups as determined by the user and the modification of the limits is repeated so that the patient'"'"'s real time change in condition is constantly reflected in modified control charts. Records of the changes in the chart limits and data are maintained for consistency. Patient specific data received from a monitor are thereby modified to reflect the level of consistency in data received. The date include specific biological rhythms such as: pulse, oxygen content in the blood, blood pressure, and other bodily functions capable of being monitored. By determining the amount of consistency (or similarity) within consecutive subgroups of data (auto correlation or serial correlation) significant changes in the body may be identified relative to the time when consistency changes. The data are coordinated by time and subgroup number. The results are applied to control chart data (1) to obtain statistical results comparable to statistically independent control chart data, (2) to correct limits for control chart data, (3) to correct the plotting of data for control charts and (4) to determine when the prior three actions should be taken and for treating and diagnosing patients.
-
Citations
26 Claims
-
1. A method of evaluating patient specific data from a medical monitor which measures patient vital signs readable as individual data readings having a value as of a particular relevant time comprising of the steps of:
-
a) selecting individual data readings; b) setting a subgroup number as the number of measurements in subgroups; c) grouping the data readings so that a number of readings equal to the subgroup number are grouped into consecutive subgroups as subgroup data; d) determining at least one control chart statistic for each of the subgroups; e) determining a correlation value for correlation between at least two individual data readings; f) determining at least one control chart limit; g) determining at least one correcting factor for modifying the at least one control chart limit relative to the correlation value; h) modifying the at least one control chart limit using the at least one correcting factor to obtain a modified chart limit; i) displaying the at least one control chart statistic for the patient specific data in conjunction with the at least one modified chart limit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
Specification