SYSTEM AND METHOD FOR MONITORING BLOOD GLUCOSE LEVELS NON-INVASIVELY
0 Assignments
0 Petitions
Accused Products
Abstract
A system and method is described for non-invasive monitoring of blood glucose levels. The system includes a pulse-sensor unit configured to detect a pulse wave travelling through a blood vessel and a processor unit configured to determine pulse wave velocity, to calculate the blood density and so to determine blood glucose level. Various embodiments include pulse-sensor arrays and wearable units configured to communicate with insulin pumps worn about the person of the subject.
-
Citations
52 Claims
-
1-28. -28. (canceled)
-
29. A system for non-invasive monitoring of blood glucose levels, the system comprising:
- at least one pulse-sensor unit configured to detect a pulse wave travelling through a blood vessel and a processor unit configured to receive input from said at least one pulse-sensor unit, to determine pulse wave velocity and to calculate the blood glucose level wherein said pulse-sensor unit comprises at least two sensors separated by a known spacing distance.
- View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
-
50. A method for monitoring blood glucose levels comprising the steps:
-
producing a calibration curve by measuring pulse wave velocity in blood in a plurality of samples of blood having different glucose levels; measuring the pulse wave velocity in a blood vessel, and comparing the measured pulse wave velocity of said subject with said calibration curve thereby determining the blood glucose level in said subject. - View Dependent Claims (51)
-
-
52. A method for measuring the pulse wave velocity comprising:
-
providing at least two sensors; collecting a set of pressure samples detected at short time intervals δ
t;selecting a first set of pressure samples from a first sensor and a second set of pressure samples from a second sensor; measuring the degree of correlation between said first set of pressure samples to said second set of pressure samples at a plurality of time shifts τ
;selecting the time shift τ
opt with highest degree of correlation;determining inter-sensor spacing between said first sensor and said second sensor; and dividing the inter-sensor spacing by the optimal time shift τ
opt.
-
Specification