Portable clinical analysis system for hematocrit measurement
First Claim
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1. A method of performing a hematocrit analysis, the method comprising:
- inserting a test device comprising a hematocrit sensor into a port of an analyzer;
initiating, by the analyzer, a test cycle of the test device, the test cycle including performance of the hematocrit analysis, wherein the performance of the hematocrit analysis includes the test device generating an electric signal based on a hematocrit measurement of a biological sample;
determining spatial orientation and/or motion of the analyzer during the test cycle of the test device;
comparing the determined spatial orientation to a threshold operating spatial plane for the test device and/or comparing the determined motion to a threshold rate of motion for the test device;
when the determined spatial orientation exceeds the threshold operating spatial plane, and/or the determined motion exceeds the threshold rate of motion, providing an alert prompting a user to take corrective action,wherein the corrective action is instructed in the alert to be taken during the test cycle without having to reinitiate the test cycle including the performance of the hematocrit analysis.
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Abstract
The present invention covers the integration and utility of accelerometer features into a clinical analysis system. For example, measurement of dynamic acceleration and orientation of a blood-testing instrument with respect to Earth'"'"'s gravitational field may be used to determine reliability of a test procedure and optionally to provide corrective elements thereof.
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Citations
20 Claims
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1. A method of performing a hematocrit analysis, the method comprising:
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inserting a test device comprising a hematocrit sensor into a port of an analyzer; initiating, by the analyzer, a test cycle of the test device, the test cycle including performance of the hematocrit analysis, wherein the performance of the hematocrit analysis includes the test device generating an electric signal based on a hematocrit measurement of a biological sample; determining spatial orientation and/or motion of the analyzer during the test cycle of the test device; comparing the determined spatial orientation to a threshold operating spatial plane for the test device and/or comparing the determined motion to a threshold rate of motion for the test device; when the determined spatial orientation exceeds the threshold operating spatial plane, and/or the determined motion exceeds the threshold rate of motion, providing an alert prompting a user to take corrective action, wherein the corrective action is instructed in the alert to be taken during the test cycle without having to reinitiate the test cycle including the performance of the hematocrit analysis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of performing in vitro analysis of a sample comprising blood, the method comprising:
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inserting a test device comprising at least one sensor configured to output a signal that is partially dependent on non-homogeneity of blood cells positioned in a region of the at least one sensor into a port of an analyzer; initiating, by the analyzer, a test cycle of the test device, the test cycle including performance of the in vitro analysis, wherein the performance of the in vitro analysis includes the test device generating an electric signal based on a measurement of at least one target analyte or property of the sample; determining spatial orientation and/or motion of the analyzer during the test cycle of the test device; comparing the determined spatial orientation to a threshold operating spatial plane for the test device and/or comparing the determined motion to a threshold rate of motion for the test device; when the determined spatial orientation exceeds the threshold operating spatial plane, and/or the determined motion exceeds the threshold rate of motion, providing an alert prompting a user to take corrective action, wherein the corrective action is instructed in the alert to be taken during the test cycle without having to reinitiate the test cycle including the performance of the in vitro analysis. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification