BIOLOGICAL COMPONENT MEASURING SENSOR

• US 20090128805A1
• Filed: 06/06/2006
• Published: 05/21/2009
• Est. Priority Date: 06/07/2005
• Status: Abandoned Application

• Current Assignee: Nielsen Media Research, Inc. (Nielsen Holdings plc), Omron Healthcare Company Limited (Omron Corporation)
• Original Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Inventors: Tokita, Muneo
• Application Number:
  US11/916,425
• Publication Number:
  US 20090128805A1
• Time in Patent Office: Days
• US Class Current: 356/300
• CPC Class Codes: A61B 2562/146 for optical coupling
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters

Abstract

A biological component measuring sensor comprising a plurality of light-receiving regions provided in a light-receiving element for receiving light from an organism, and a plurality of waveguides provided in correspondence with the plurality of light-receiving regions, each including an in-let side opening through which the light enters and an out-let side opening from which the light exits, and introducing the light to the plurality of light-receiving regions, respectively. The plurality of waveguides are provided in a waveguide formation member formed integrally, and the opening area of the in-let side opening of each of the waveguides is larger than the opening area of the out-let side opening. Consequently, the sensor can receive light from an organism more efficiently.

Claims

1. A biological component measuring sensor for spectroscopically measuring a concentration of a particular component included in a living tissue in a noninvasive manner, comprising:

a plurality of light-receiving regions provided in light-receiving means for receiving light from a living body; and

a plurality of waveguides, each including an inlet-side opening portion where said light enters and an outlet-side opening portion where said light exists, provided respectively corresponding to said plurality of light-receiving regions to introduce said light to respective said plurality of light-receiving regions, wherein

said plurality of waveguides are provided in an interior of a waveguide formation member as integrally formed, and

in each of said plurality of waveguides, an opening area of said inlet-side opening portion is formed to be larger than an opening area of said outlet-side opening portion.

2. The biological component measuring sensor according to claim 1, wherein each of said plurality of waveguides is formed to have its opening area gradually reduced from said inlet-side opening portion to said outlet-side opening portion.

3. The biological component measuring sensor according to claim 1, wherein in each of said plurality of waveguides, an opening shape in said inlet-side opening portion and an opening shape in said outlet-side opening portion are different from each other.