BIOLOGICAL INFORMATION DETECTOR AND BIOLOGICAL INFORMATION MEASURING DEVICE

• US 20110196242A1
• Filed: 01/28/2011
• Published: 08/11/2011
• Est. Priority Date: 02/10/2010
• Status: Abandoned Application

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: SATO, Shigemi, YAMASHITA, Hideto, IIJIMA, Yoshitaka
• Application Number:
  US13/016,281
• Publication Number:
  US 20110196242A1
• Time in Patent Office: Days
• US Class Current: 600/479
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/02444 Details of sensor A61B5/02427 takes precedence
• CPC Class Codes: A61B 5/681 Wristwatch-type devices
• CPC Class Codes: A61B 5/6824 Arm or wrist

Abstract

To provide a biological information detector or the like in which the detection accuracy or the measurement accuracy can be increased. A biological information detector includes a light-emitting part (14) for emitting light (R1) directed at a detection site (O) of a test subject; a light-receiving part (16) for receiving light (R1′) having biological information, the light (R1′) being light (R1) emitted by the light-emitting part (14) and reflected at the detection site (O); and a contact part (19) formed from a material that is transparent with respect to a wavelength of light (R1) emitted by the light-emitting part (14), the contact part (19) having a contact surface (19A) that makes contact with the test subject and an opposing surface (19B) disposed opposite the contact surface (19A). The light-emitting part (14) is installed on the opposing surface (19B).

Claims

1. A biological information detector, comprising:

a light-emitting part subjected to emit light directed at a detection site of a test subject;

a light-receiving part subjected to receive light having biological information, the light being light emitted by the light-emitting part and reflected at the detection site; and

a contact part formed from a material that is transparent with respect to a wavelength of the light emitted by the light-emitting part, the contact part having a surface that makes contact with the test subject and an opposing surface disposed opposite the contact surface;

wherein

the light-emitting part is installed on the opposing surface.

2. The biological information detector according to claim 1, wherein

a first wiring for the light-emitting part is arranged on the opposing surface, and

the light-emitting part is installed on a surface of the first wiring.

3. The biological information detector according to claim 1, wherein

light emitted by the light-emitting part includes a first light directed at the detection site and a second light directed in a direction other than that of the detection site;

and

the biological information detector further includes a first reflecting part for reflecting the second light towards the detection site.

4. The biological information detector according to claim 3, wherein

the first reflecting part is secured to the opposing surface.

5. The biological information detector according to claim 4, wherein

the first reflecting part is secured to the opposing surface with an insulating member interposed therebetween.

6. The biological information detector according to claim 2, further comprising:

a substrate formed from a material that is transparent with respect to the wavelength of the light emitted by the light-emitting part, the substrate having a first surface and a second surface disposed opposite the first surface;

wherein

a second wiring for the light-emitting part is arranged on the second surface; and

the first wiring is electrically connected to the second wiring with an electroconductive member interposed therebetween.

7. The biological information detector according to claim 6, further comprising

a second reflecting part subjected to cause light having biological information from the detection site to be reflected and guided towards the light-receiving part;

wherein

the light-receiving part is arranged on the first surface; and

the substrate is arranged between the second reflecting part and the contact part.

8. A biological information measuring device, comprising:

the biological information detector according to claim 1, and

a biological information measuring part for measuring the biological information from a light reception signal generated in the light-receiving part, wherein

the biological information is a pulse rate.