System and method for continuous monitoring of diabetes-related blood constituents
First Claim
1. System apparatus for providing an indication of at least patient blood insulin, comprising:
- ECG sensor means for obtaining signals representative of the patient ECG,signal processing means for processing said ECG signals to provide first parameter data indicative of the patient'"'"'s blood insulin level, wherein the signal processing means include means for comparing the sensed ECG signals against a reference value, andresponse means for providing a response as a function of said data.
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Abstract
A system and method for sensing and providing an indication of one or more diabetes-related blood constituents of a patient, the system being based upon an ECG sensor which processes patient ECG signals, either surface, or intracardiac or epicardial, for determining a measure of a blood constituent such as insulin or glucose, or both insulin and glucose. The system has processing capability for correlating selected parameters of the ECG signal with patient blood insulin or blood glucose, to provide the insulin or glucose level. Additionally, the system is provided with input capability for enabling the patient to input data such as the time of meal intake, which is representative of glucose intake, which data is incorporated in making a determination of patient insulin need. The system can be in a first external wearable embodiment, or in a second implantable embodiment which utilizes a pacing-type lead for picking up intracardiac or epicardial signals. In either the wearable or implantable embodiment, the output response may be simply an indication of patient insulin and/or glucose need provided by an external display, and may also include automatic control of insulin injection to the patient.
803 Citations
44 Claims
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1. System apparatus for providing an indication of at least patient blood insulin, comprising:
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ECG sensor means for obtaining signals representative of the patient ECG, signal processing means for processing said ECG signals to provide first parameter data indicative of the patient'"'"'s blood insulin level, wherein the signal processing means include means for comparing the sensed ECG signals against a reference value, and response means for providing a response as a function of said data. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for providing an indication of blood insulin level of a patient, comprising
ECG sensor means for sensing ECG signals of said patient, processing means for processing said ECG signals and obtaining therefrom a measure of patient blood insulin, wherein the processing means include means for comparing the sensed ECG against a reference value, and output means responsive to said insulin measure for outputting an indication of patient insulin level.
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14. A system for determining insulin need of a diabetic patient, comprising
ECG sensing means for sensing the patient ECG and deriving therefrom an indication of patient blood insulin level, glucose input means for inputting data indicative of patient glucose intake, processing means for determining patient insulin need as a function of said indicated blood insulin level and said glucose intake data, wherein the processing means include means for comparing said indicated blood insulin level against a reference value, and response means for outputting an indication of said determined patient insulin need.
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21. A system for sensing one or more diabetes-related blood constituents of a patient, comprising an implantable apparatus and an external apparatus, said implantable apparatus comprising sensor means for continuously sensing ECG signals from said patient;
- processing means for continuously processing said ECG signals and obtaining therefrom data indicating the level of at least one selected blood constituent, wherein the processing means include means for comparing the sensed ECG signals against a reference value; and
transfer means for transferring said data to said external apparatus, andsaid external apparatus comprising indicator means for indicating said patient blood constituent level based upon said transferred data. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
- processing means for continuously processing said ECG signals and obtaining therefrom data indicating the level of at least one selected blood constituent, wherein the processing means include means for comparing the sensed ECG signals against a reference value; and
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33. A system for continuously determining a measure of at least one diabetes-related blood constituent of a patient, said constituent selected from the group of blood insulin and blood glucose, comprising:
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sense means for continuously sensing patient ECG signals, the ECG having a QRS portion and a T wave portion; programmable means for storing data reflective of preselected ECG parameters corresponding to a selected one of said blood constituents; first signal processing means for substantially continuously extracting from said ECG signals portions representative of said ECG parameters; second signal processing means for processing said extracted signal portions and obtaining data therefrom which correlates with said selected constituent; and third signal processing means for continuously determining a measure of said selected constituent as a function of said obtained data wherein said third signal processing means include means for comparing said obtained data against a reference value. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification