METHOD, DEVICE AND SYSTEM FOR NON-INVASIVE MEASUREMENT OF BLOOD GLUCOSE CONTENT

• US 20170055891A1
• Filed: 09/02/2015
• Published: 03/02/2017
• Est. Priority Date: 09/02/2015
• Status: Abandoned Application

• Current Assignee: Leila Chaychi
• Original Assignee: Leila Chaychi
• Inventors: Chaychi, Leila
• Application Number:
  US14/842,832
• Publication Number:
  US 20170055891A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/02055 Simultaneously evaluating both cardiovascular condition and temperature
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/681 Wristwatch-type devices
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses
• CPC Class Codes: A61B 5/6898 Portable consumer electronic devices, e.g. music players, telephones, tablet computers

Abstract

An accurate and real-time architecture that uses Near Infra-red (NIR) and mid infra-red (IR) thermal energy to determine blood glucose levels in a patient'"'"'s body member based on NIR and IR transmittance and reflecting back while in contact with the body member.

Claims

1. A user device for non-invasive measurement of concentration of glucose contained in the blood in a site having a vasculature, comprising:

a display;

a first detector configured to detect an infra-red (IR) signal reflected from glucose contained in the blood at the site;

a communication interface coupled to the first detector;

at least one processor in communication with the communication interface and configured to;

detect the concentration of glucose contained in the blood at the site based on IR signal detected by the first detector; and

display a number representative of the concentration on the display.

2. The user device of claim 1, further comprising a second detector in communication with the communication interface and configured to detect the concentration of oxygen contained in the blood at the site.

3. The user device of claim 2, wherein the processor is further configured to:

detect the concentration of oxygen in the blood at the site detected by the second detector.

4. The user device of claim 2, wherein the first detector is further configured to detect red, and near infra-red (NIR) radiation.

5. The user device of claim 3, wherein the detecting of the concentration of oxygen in the blood at the site is by pulse oximetry technique.

6. The user device of claim 1, further comprising a radiation source irradiating the site.

7. The user device of claim 1, wherein the first detector is configured to be mounted on an external body surface proximate to a portion of the site.

8. The user device of claim 2, wherein the second detector is configured to be mounted on an external body surface proximate to a portion of the site.

9. The user device of claim 1, wherein the first detector is mounted using a wristband or a strap.

10. The user device of claim 2, wherein the second detector is mounted using a wristband or a strap.

11. A method for non-invasive measurement of concentration of glucose contained in the blood in a site having a vasculature, comprising:

detecting the concentration of glucose contained in the blood at the site based on infra-red (IR) signal; and

displaying a number representative of the concentration on a display.

12. The method of claim 11, wherein the step of detecting the concentration of glucose contained in the blood at the site includes measuring the red and near infra-red (NIR) radiation from the site.

13. The method of claim 12, further comprising the step of normalizing the measured red, infra-red (IR) and near infra-red (NIR) radiation by applying a first order filter to low wavelength NIR, medium wavelength NIR and high wavelength NIR radiation.

14. The method of claim 13, further comprising the step of applying linear regression to normalized measured red, infra-red (IR) and near infra-red (NIR) radiation.

15. The method of claim 14, further comprising the step of detecting the concentration of oxygen contained in the blood at the site.

16. The method of claim 15, further comprising determining whether the concentration of oxygen contained in the blood at the site is within a range of 90 to 99 percent.

17. The method of claim 16, responsive to the concentration of oxygen contained in the blood at the site being within a range of 90 to 99 percent, mapping a concentration of glucose contained in the blood at the site to [55,355] mg/ml.

18. The method of claim 17, further comprising the step of scaling the concentration of glucose contained in the blood at the site by a factor based on pre-existing condition of the user.

19. A kit for non-invasive measurement of concentration of glucose contained in the blood in a site having a vasculature, the kit comprising:

a first detector configured to detect red, infra-red, and near infra-red signals reflected from glucose contained in blood;

a user device including;

a communication interface coupled to the first detector;

at least one processor in communication with the communication interface and configured to;

detect the concentration of glucose contained in the blood at the site based on IR signal detected by the first detector; and

display a number representative of the concentration on the display.

20. The kit of claim 19, further comprising a second detector in communication with the communication interface and configured to detect the oxygen concentration contained in blood.