System for monitoring physiological characteristics

• US 10,080,529 B2
• Filed: 01/16/2015
• Issued: 09/25/2018
• Est. Priority Date: 12/27/2001
• Status: Expired due to Term

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Inventors: Fox, James Kelly, Steil, Garry M., Rebrin, Kerstin, Estes, Mark C., Saidara, Frank
• Primary Examiner(s): Natnithithadha, Navin
• Application Number:
  US14/599,010
• Publication Number:
  US 20150190100A1
• Time in Patent Office: 1,348 Days
• Field of Search: 600309, 600345-366
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 2560/0252 using ambient temperature
• CPC Class Codes: A61B 2560/045 with a separable interface unit, e.g. for communication
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1468 using chemical or electrochemical methods, e.g. by polarographic means A61B5/1486 takes precedence
• CPC Class Codes: A61B 5/1486 using enzyme electrodes, e.g. with immobilised oxidase
• CPC Class Codes: A61B 5/1495 Calibrating or testing of in-vivo probes
• CPC Class Codes: A61B 5/7275 Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B
• CPC Class Codes: G16H 15/00 ICT specially adapted for medical reports, e.g. generation or transmission thereof
• CPC Class Codes: G16H 20/10 relating to drugs or medications, e.g. for ensuring correct administration to patients
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 40/67 for remote operation

Abstract

Apparatuses and methods for medical monitoring physiological characteristics values such as blood glucose levels for the treatment of diabetes, are presented. The apparatuses and methods provide dynamic glucose monitoring functions that perform predictive analysis to anticipate harmful conditions, such as glucose crash and hyperglycemic incidents for a patient. The dynamic functions can also be used to maximize athletic performance and warn of inadequate nocturnal basal rate. Other aspects include advanced alarm and reminder functions, as well as advanced data presentation tools to further facilitate convenient and efficient management of various physiological conditions.

Claims

1. A glucose monitor system, comprising:

a sensor set to produce signals corresponding to blood glucose levels of a user; and

a glucose monitor, including

a processor to receive the signals from the sensor set, analyze the signals received, and provide multiple alarms, wherein

a first upper alarm of the multiple alarms is associated with a first upper threshold value and a first lower alarm of the multiple alarms is associated with a first lower threshold value for a first range of rates of glucose level change, and

a second upper alarm of the multiple alarms is associated with a second upper threshold value and a second lower alarm of the multiple alarms is associated with a second lower threshold value for a second range of rates of glucose level change, and

a display to provide visual alarm indications based on the multiple alarms corresponding to the first upper threshold value, the first lower threshold value, the second upper threshold value, and the second lower threshold value, wherein the multiple alarms are distinguishable from each other.

2. The glucose monitor system of claim 1, further including a telemetered monitor transmitter coupled to the sensor set, wherein the sensor set provides the signals to the telemetered monitor transmitter and the telemetered monitor transmitter interprets and converts the signals to RF signals to be wirelessly transmitted to the glucose monitor.

3. The glucose monitor system of claim 1, wherein the glucose monitor further includes a sensor input coupled to the processor to wirelessly receive the signals from the sensor set.

4. The glucose monitor system of claim 1, wherein the visual alarm indications include at least one of a colored light, a flashing light, and a display.

5. The glucose monitor system of claim 1, wherein the display relates information to the user based on the signals received from the sensor set.

6. A glucose monitor, comprising:

a processor to receive signals corresponding to blood glucose levels of a user from a sensor set, analyze the signals received, and provide multiple alarms, wherein

a first upper alarm of the multiple alarms is associated with a first upper threshold value and a first lower alarm of the multiple alarms is associated with a first lower threshold value for a first range of rates of glucose level change, and

a second upper alarm of the multiple alarms is associated with a second upper threshold value and a second lower alarm of the multiple alarms is associated with a second lower threshold value for a second range of rates of glucose level change, and

a display to provide visual alarm indications based on the multiple alarms corresponding to the first upper threshold value, the first lower threshold value, the second upper threshold value, and the second lower threshold value, wherein the multiple alarms are distinguishable from each other.

7. The glucose monitor of claim 6, further including a sensor input coupled to the processor to wirelessly receive the signals from the sensor set.

8. The glucose monitor of claim 6, wherein the visual alarm indications include at least one of a colored light, a flashing light, and a display.

9. The glucose monitor of claim 6, further including a telemetered monitor transmitter coupled to the sensor set, wherein the sensor set provides the signals to the telemetered monitor transmitter and the telemetered monitor transmitter interprets and converts the signals to RF signals to be wirelessly transmitted.

10. The glucose monitor of claim 6, wherein the display relates information to the user based on the signals received from the sensor set.

11. A method of providing alarms for a glucose monitor, comprising:

receiving signals corresponding to blood glucose levels of a user from a sensor set;

analyzing the signals received from the sensor set;

providing visual alarm indications corresponding to multiple alarms, wherein

a first upper alarm of the multiple alarms is associated with a first upper threshold value and a first lower alarm of the multiple alarms is associated with a first lower threshold value for a first range of rates of glucose level change,

a second upper alarm of the multiple alarms is associated with a second upper threshold value and a second lower alarm of the multiple alarms is associated with a second lower threshold value for a second range of rates of glucose level change, and

the multiple alarms corresponding to the first upper threshold value, the first lower threshold value, the second upper threshold value, and the second lower threshold value are distinguishable from each other.

12. The method of claim 11, further including producing the signals corresponding to the blood glucose levels of the user from the sensor set.

13. The method of claim 11, wherein the visual alarm indications include at least one of a colored light, a flashing light, and a display.