Optical Monitoring and Computing Devices and Methods of Use

• US 20130267854A1
• Filed: 04/09/2012
• Published: 10/10/2013
• Est. Priority Date: 04/09/2012
• Status: Abandoned Application

• Current Assignee: Boise State University
• Original Assignee: Boise State University
• Inventors: Sabick, Michelle, Johnson, Jami
• Application Number:
  US13/442,551
• Publication Number:
  US 20130267854A1
• Time in Patent Office: Days
• US Class Current: 600/473
• CPC Class Codes: A61B 2562/046 in a matrix array
• CPC Class Codes: A61B 2562/066 in a matrix array
• CPC Class Codes: A61B 5/0064 Body surface scanning
• CPC Class Codes: A61B 5/0082 adapted for particular medical purposes
• CPC Class Codes: A61B 5/6824 Arm or wrist
• CPC Class Codes: A61B 5/721 using a separate sensor to detect motion or using motion information derived from signals other than the physiological signal to be measured

Abstract

The present invention relates to medical devices and, in particular, to optical computing devices configured to monitor cardiac-related conditions. One optical computing device includes a substrate, at least one light source mounted on the substrate and configured to emit electromagnetic radiation that optically interacts with a vasculature and generates an optically interacted signal, a plurality of detectors mounted on the substrate and configured to detect the optically interacted signal, and a stabilizing matrix arranged on the substrate and substantially surrounding the at least one light source and the plurality of detectors. The stabilizing matrix may be configured to absorb vibration and thereby reduce motion artifacts detectable by the plurality of detectors.

Claims

1. A device, comprising:

a substrate;

at least one light source mounted on the substrate and configured to emit electromagnetic radiation that optically interacts with a vasculature and generates an optically interacted signal;

a plurality of detectors mounted on the substrate and configured to detect the optically interacted signal; and

a stabilizing matrix arranged on the substrate and substantially surrounding the at least one light source and the plurality of detectors, the stabilizing matrix being configured to absorb vibration and thereby reduce motion artifacts detectable by the plurality of detectors.

2. The device of claim 1, wherein the electromagnetic radiation is one of red or infrared light.

3. The device of claim 1, wherein the plurality of detectors form a circular array about the light source.

4. The device of claim 1, further comprising a processing device communicably coupled to the plurality of detectors and configured to receive signal data generated by the plurality of detectors.

7. The device of claim 1, wherein one or more of the plurality of detectors protrudes past an outer surface of the stabilizing matrix.

8. The device of claim 1, wherein the stabilizing matrix is made of a pliant material.

9. The device of claim 8, wherein the pliant material is silicone.

10. The device of claim 1, wherein the substrate is removably coupled to a back-side of a wrist watch such that the stabilizing matrix is in direct contact with skin of an individual.

5. The device of claim 5, wherein the processing device is a wireless transmitter configured to communicate the signal data to an adjacent computing system adapted to receive and process the signal data.

6. The device of claim 5, wherein the processing device is a microprocessor configured to receive and process the signal data.

11. A device, comprising:

a housing having a front surface and a back surface;

a substrate having a front side and a back side, the back side being removably coupled to the back surface of the housing;

at least one light source mounted on the front side of the substrate and configured to emit electromagnetic radiation that optically interacts with a vasculature and thereby generates an optically interacted signal;

a plurality of detectors mounted on the front side of the substrate and configured to detect the optically interacted signal; and

a stabilizing matrix arranged on the front side of the substrate and substantially surrounding the at least one light source and the plurality of detectors, the stabilizing matrix being configured to absorb vibration and thereby reduce motion artifacts detectable by the plurality of detectors.

12. The device of claim 11, wherein the back surface of the housing defines a recess configured to receive the substrate.

13. The device of claim 11, further comprising a layer of pressure-sensitive adhesive applied to an outer surface of the stabilizing matrix.

14. The device of claim 11, further comprising a processing device communicably coupled to the plurality of detectors and configured to receive signal data generated by the plurality of detectors.

15. The device of claim 14, further comprising an interface coupled to the front surface of the housing and communicably coupled to the processing device, the interface comprising an interactive display configured to provide real-time cardiac-related information to a user.

16. The device of claim 15, wherein the interface further comprises an alarm configured to alert the user to one or more predetermined cardiac conditions as detected by the plurality of detectors and measured by the processing device.

17. A method for detecting cardiac-related conditions, comprising:

emitting electromagnetic radiation through a vasculature using at least one light source mounted on a substrate, the electromagnetic radiation being configured to optically react with the vasculature and reflect an optically interacted signal;

detecting the optically interacted signal with a plurality of detectors mounted on the substrate, the plurality of detectors being configured to generate signal data;

absorbing vibration and reducing motion artifacts detectable by the plurality of detectors with a stabilizing matrix, the stabilizing matrix being arranged on the substrate and substantially surrounding the at least one light source and the plurality of detectors;

receiving the signal data with a processing device communicably coupled to the plurality of detectors; and

processing the signal data to determine the cardiac-related conditions.

18. The method of claim 17, wherein processing the signal data further comprises transmitting the signal data with the processing device to a computing device configured to analyze and filter the signal data and subsequently display a photoplethysmograph representative of the signal data.

19. The method of claim 17, wherein processing the signal data further comprises:

filtering and analyzing the signal data with the processing device to determine real-time cardiac-related information; and

displaying the real-time cardiac-related information on an interface communicably coupled to the processing device.

20. The method of claim 17, further comprising sealing off the plurality of detectors from ambient light interference using the stabilizing matrix.