EMISSION SENSOR DEVICE AND BIOINFORMATION DETECTING METHOD

• US 20100056887A1
• Filed: 11/26/2006
• Published: 03/04/2010
• Est. Priority Date: 11/27/2006
• Status: Abandoned Application

• Current Assignee: Kyushu University, Pioneer Corporation
• Original Assignee: Pioneer Corporation
• Inventors: Kimura, Yoshinori, Onoe, Atsushi, Sawada, Renshi
• Application Number:
  US12/516,080
• Publication Number:
  US 20100056887A1
• Time in Patent Office: Days
• US Class Current: 600/324
• CPC Class Codes: A61B 2562/0242 for varying or adjusting the optical path length in the tissue
• CPC Class Codes: A61B 5/02028 Determining haemodynamic parameters not otherwise provided for, e.g. cardiac contractility or left ventricular ejection fraction
• CPC Class Codes: A61B 5/0261 using optical means, e.g. infrared light
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: G01N 2021/3144 for oxymetry
• CPC Class Codes: G01N 21/359 using near infrared light

Abstract

An emission sensor device includes a base (110), a light applying section (120) disposed on the base and adapted for applying light beams having different wavelengths to a subject in such a way that the light beams at least overlap with one another, and a light receiving section (150) disposed on the base and adapted for detecting light from the subject attributed to the applied light beams for each wavelength. The device has a small size and can collect predetermined types of information on the subject such as bioinformation with high accuracy.

Claims

1-11. -11. (canceled)

12. A light-emitting sensor apparatus comprising:

a substrate;

an applying device which is disposed on said substrate and which applies a plurality of light with mutually different wavelengths to a measured sample such that the light overlaps each other at least partially; and

a light receiving device which is disposed on said substrate and which detects light from the measured sample caused by the applied plurality of light, for each wavelength.

13. The light-emitting sensor apparatus according to claim 12, wherein said applying device applies the plurality of light through a common optical system.

14. The light-emitting sensor apparatus according to claim 12, wherein

said applying device sequentially applies the plurality of light, and

said light receiving deice detects the light from the measured sample for each wavelength by time division.

15. The light-emitting sensor apparatus according to claim 12, wherein

said applying device simultaneously applies the plurality of light, and

said light receiving deice has a plurality of light receiving elements which detect the light from the measured sample for each wavelength.

16. The light-emitting sensor apparatus according to claim 12, wherein said applying device and said light receiving device are integrated on said substrate.

17. The light-emitting sensor apparatus according to claim 12, wherein said applying device has a semiconductor laser which generates a plurality of laser beams as the plurality of light.

18. The light-emitting sensor apparatus according to claim 17, wherein the semiconductor laser makes a drive current lower than a laser oscillation threshold value, to thereby function as a light-emitting diode.

19. The light-emitting sensor apparatus according to claim 12, wherein said applying device comprises:

a light source for generating a plurality of source light; and

a reflecting mirror which reflects the generated plurality of source light in a direction of the measured sample so as to be the irradiated plurality of light, at a position irradiated with the generated plurality of source light.

20. The light-emitting sensor apparatus according to claim 19, wherein the reflecting mirror includes, on its surface, at least one of Au (gold), Cu (copper), Al (aluminum), and Ag (silver).

21. The light-emitting sensor apparatus according to claim 12, further comprising a calculating device for calculating at least one of a blood flow velocity and a blood oxygen saturation level associated with the measured sample on the basis of the detected light.