Non-Invasive Glucose Monitoring
First Claim
1. A method of determining a subject-specific correlation function correlating an electrical quantity characterizing a section of a subject body to a glucose level of the subject, the method comprising:
- non-invasively measuring the electrical quantity, so as to provide a time-dependence of said electrical quantity over a predetermined time-period;
measuring the glucose level of the subject a plurality of times, thereby providing a series of glucose levels;
using said time-dependence for extracting a plurality of parameters characterizing said time-dependence, wherein said plurality of parameters comprises at least four parameters; and
performing a statistical analysis so as to correlate said series of glucose levels to at least one of said plurality of parameters;
thereby determining the subject-specific correlation function.
1 Assignment
0 Petitions
Accused Products
Abstract
A monitoring system for monitoring the glucose level of a subject having a glucose level history is disclosed. The system comprises (a) a non-invasive measuring device, operable to measure and record an electrical quantity from a section of the subject body, so as to provide a time-dependence of the electrical quantity over a predetermined time-period. The system further comprises (b) a processing unit, communicating with the non-invasive measuring device. The processing unit comprises: an extractor, for extracting a plurality of parameters characterizing the time-dependence, a correlation function calculator for calculate a subject-specific correlation function, and an output unit, communicating with the correlation function calculator and configured to output the glucose level of the subject. The subject-specific correlation function describes the glucose level history and is defined over a plurality of variables, each corresponding to a different parameter.
124 Citations
50 Claims
-
1. A method of determining a subject-specific correlation function correlating an electrical quantity characterizing a section of a subject body to a glucose level of the subject, the method comprising:
-
non-invasively measuring the electrical quantity, so as to provide a time-dependence of said electrical quantity over a predetermined time-period; measuring the glucose level of the subject a plurality of times, thereby providing a series of glucose levels; using said time-dependence for extracting a plurality of parameters characterizing said time-dependence, wherein said plurality of parameters comprises at least four parameters; and performing a statistical analysis so as to correlate said series of glucose levels to at least one of said plurality of parameters; thereby determining the subject-specific correlation function. - View Dependent Claims (2, 3, 4, 35, 36, 37, 42, 43, 44, 46, 47, 48, 49)
-
-
5. A method of estimating the glucose level of a subject having a glucose level history, the method comprising calculating a subject-specific correlation function describing the glucose level history, and using said subject-specific correlation function for estimating the glucose level of the subject;
said subject-specific correlation function being defined over a plurality of variables, each corresponding to a different parameter characterizing a time-dependence of an electrical quantity over a predetermined time period being correlated to a heart rate of the subject.
-
6. A method of monitoring the glucose level of a subject having a glucose level history, comprising:
-
non-invasively measuring an electrical quantity from a section of the subject body so as to provide a time-dependence of said electrical quantity over a predetermined time-period being correlated to a heart rate of the subject; using said time-dependence for extracting a plurality of parameters characterizing said time-dependence; calculating a subject-specific correlation function describing the glucose level history, said subject-specific correlation function being defined over a plurality of variables, each corresponding to a different parameter of said plurality of parameters; and using said subject-specific correlation function for estimating the glucose level of the subject; thereby monitoring the glucose level of the subject. - View Dependent Claims (7, 8, 9, 10)
-
-
11-14. -14. (canceled)
-
15. A system for determining a subject-specific correlation function correlating an electrical quantity characterizing a section of a subject body to a glucose level of the subject, the system comprising:
-
(a) a glucose level input unit configured for receiving a series of glucose levels; (b) a non-invasive measuring device operable to measure and record the electrical quantity, so as to provide a time-dependence of said electrical quantity over a predetermined time-period; and (c) a processing unit communicating with said non-invasive measuring device, and comprising; (i) an extractor, communicating with said non-invasive measuring device and being operable to extract a plurality of parameters characterizing said time-dependence, wherein said plurality of parameters comprises at least four parameters; and (ii) a correlating unit, communicating with said extractor and being supplemented with statistical analysis software configured to correlate said series of glucose levels to at least one of said plurality of parameters, thereby to determine the subject-specific correlation function.
-
-
16. Apparatus for estimating the glucose level of a subject having a glucose level history, the apparatus comprising:
-
a correlation function calculator, operable to calculate a subject-specific correlation function describing the glucose level history, and to estimate the glucose level of the subject based on said subject-specific correlation function, wherein said subject-specific correlation function is defined over a plurality of variables, each corresponding to a different parameter characterizing a time-dependence of an electrical quantity over a predetermined time period being correlated to a heart rate of the subject; and an output unit, communicating with said correlation function calculator and configured to output the glucose level of the subject.
-
-
17. A monitoring system for monitoring the glucose level of a subject having a glucose level history, the system comprising:
-
(a) a non-invasive measuring device operable to measure and record an electrical quantity from a section of the subject body, so as to provide a time-dependence of said electrical quantity over a predetermined time-period being correlated to a heart rate of the subject; and (b) a processing unit, communicating with said non-invasive measuring device and comprising; (i) an extractor operable to extract a plurality of parameters characterizing said time-dependence, (ii) a correlation function calculator operable to calculate a subject-specific correlation function describing the glucose level history and to estimate the glucose level of the subject based on said subject-specific correlation function, wherein said subject-specific correlation function is defined over a plurality of variables, each corresponding to a different parameter of said plurality of parameters, and (iii) an output unit, communicating with said correlation function calculator and configured to output the glucose level of the subject. - View Dependent Claims (21)
-
-
18-20. -20. (canceled)
-
22-34. -34. (canceled)
-
38-41. -41. (canceled)
-
45. (canceled)
-
50-52. -52. (canceled)
Specification