Wear trend analysis technique for components of a dialysis machine
First Claim
1. A method of analyzing wear on at least one component in a dialysis machine, comprising the steps of:
- establishing a threshold value which defines the limits of normal performance for each component to be analyzed;
monitoring actual performance of each component during use of the dialysis machine;
determining a test value from the actual performance monitored;
comparing the test value to the threshold value;
incrementing a maintenance count value in relation to each instance of the test value exceeding the threshold value; and
analyzing the wear on the component by referring to the maintenance count value.
7 Assignments
0 Petitions
Accused Products
Abstract
The wear on components in a dialysis machine is analyzed for the purpose of making repair and maintenance decisions. The actual performance of components is used to establish a test value. The test value is compared to a threshold value which represents the limits of normal performance of the component. Each instance where the test value exceeds the threshold value is counted and a maintenance count value is developed. The maintenance count value represents the number of abnormal performance events, and the maintenance count value is used to make maintenance and repair decisions. The test value developed for each component varies according to the type of component. The maintenance count values may be displayed for use by service personnel.
105 Citations
29 Claims
-
1. A method of analyzing wear on at least one component in a dialysis machine, comprising the steps of:
-
establishing a threshold value which defines the limits of normal performance for each component to be analyzed; monitoring actual performance of each component during use of the dialysis machine; determining a test value from the actual performance monitored; comparing the test value to the threshold value; incrementing a maintenance count value in relation to each instance of the test value exceeding the threshold value; and analyzing the wear on the component by referring to the maintenance count value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A dialysis machine including a plurality of components used to perform dialysis treatments and a safety and control system having a processor device using memory by which to control the components to perform the dialysis treatments and by which to develop information for analyzing wear on at least one of the components, comprising:
-
means for monitoring actual performance of each component to be analyzed during use of the dialysis machine; means for determining a test value from the actual performance monitored; means for recording a threshold value which defines the limits of normal performance for each component to be analyzed; means for comparing the test value to the threshold value to obtain a maintenance count value based on the comparison; means for recording the maintenance count value in memory; means for incrementing the maintenance count value in the memory in relation to each instance of the test value exceeding the threshold value; and means for selectively displaying the maintenance count value. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
-
Specification