Biological information measuring apparatus and biological information detection sensor

Patent metadata

Field	Value
Publication number	US-2019192004-A1
Application number	US-201816228959-A
Country	US
Kind code	A1
Filing date	Dec 21, 2018
Priority date	Dec 25, 2017
Publication date	Jun 27, 2019
Grant date	—

Abstract

A biological information measuring apparatus includes a housing having a contact part to be in contact with a body of a user, a light emitter that emits light toward the body of the user, a light receiver that receives a reflected light reflected by the body of the user, a processing unit that processes a signal from the light receiver and determines biological information, and a optically transparent member placed in the contact part and transmitting the light emitted by the light emitter and the light entered into the light receiver, and the light emitter and the light receiver are placed on the optically transparent member.

First claim

What is claimed is:

1 . A biological information measuring apparatus comprising:
a housing configured to have a contact part, the contact part contacts with a body of a user; a light emitter configured to emit light toward the body of the user; a light receiver configured to receive reflected light reflected by the body of the user; a processor configured to process a signal from the light receiving part and determines biological information; and a optically transparent member configured to be arranged to the contact part and transmitting the light from the light emitter and the reflected light, on which the light emitter and the light receiver are arranged.

2 . The biological information measuring apparatus according to claim 1 ,
wherein the optically transparent member has:
a first surface that contacts with the body of the user; and
a second surface on which the light emitting part and the light receiving part are arranged.

3 . The biological information measuring apparatus according to claim 2 ,
wherein the optically transparent member has a convex portion projecting in a first direction from the second surface toward the first surface, placed on the first surface, and overlapping with the light emitter in a plan view from the first direction.

4 . The biological information measuring apparatus according to claim 2 ,
wherein the optically transparent member has a concave portion recessed in a second direction from the first surface toward the second surface, placed on the first surface, and overlapping with the light receiving part in a plan view from the second direction.

5 . The biological information measuring apparatus according to claim 3 ,
wherein the optically transparent member has a concave portion recessed in a second direction from the first surface toward the second surface, placed on the first surface, and overlapping with the light receiving part in a plan view from the second direction.

6 . The biological information measuring apparatus according to claim 2 , further comprising:
an electrode pattern provided on the second surface and electrically connecting to the light emitter and the light receiver; and a connector that electrically connects the electrode pattern and the processing unit.

7 . The biological information measuring apparatus according to claim 3 , further comprising:
an electrode pattern provided on the second surface and electrically connecting to the light emitter and the light receiver; and a connector that electrically connects the electrode pattern and the processing unit.

8 . The biological information measuring apparatus according to claim 4 , further comprising:
an electrode pattern provided on the second surface and electrically connecting to the light emitter and the light receiver; and a connector that electrically connects the electrode pattern and the processing unit.

9 . The biological information measuring apparatus according to claim 1 ,
wherein the light emitter includes:
a light emitting device that emits light; and
a reflection member that covers the light emitting device and has a concave curved surface for reflecting the light entered from the light emitting device toward the body of the user.

10 . The biological information measuring apparatus according to claim 2 ,
wherein the light emitter includes:
a light emitting device that emits light; and
a reflector that covers the light emitting device and has a concave curved surface for reflecting the light entered from the light emitting device toward the body of the user.

11 . The biological information measuring apparatus according to claim 3 ,
wherein the light emitter includes:
a light emitting device that emits light; and
a reflector that covers the light emitting device and has a concave curved surface for reflecting the light entered from the light emitting device toward the body of the user.

12 . The biological information measuring apparatus according to claim 1 ,
wherein the optically transparent member is a glass substrate or resin that transmits the light from the light emitter and the reflected light.

13 . The biological information measuring apparatus according to claim 2 ,
wherein the optically transparent member is a glass substrate or resin that transmits the light from the light emitter and the reflected light.

14 . The biological information measuring apparatus according to claim 3 ,
wherein the optically transparent member is a glass substrate or resin that transmits the reflected light.

15 . The biological information measuring apparatus according to claim 1 ,
wherein the optically transparent member has a shield area that shields light in a position except a passage area for the light emitted from the light emitter and the reflected light.

16 . The biological information measuring apparatus according to claim 2 ,
wherein the optically transparent member has a shield area that shields light in a position except a passage area for the light emitted from the light emitter and the reflected light.

17 . The biological information measuring apparatus according to claim 3 ,
wherein the optically transparent member has a shield area that shields light in a position except a passage area for the light emitted from the light emitter and the reflected light.

18 . A biological information detection sensor used for a biological information measuring apparatus that measures biological information of a user, comprising:
an optically transparent member configured to have a first surface to be in contact with a body of the user, and a second surface as an opposite surface to the first surface; a light emitter configured to be arranged on the second surface and to emit light along a first direction from the second surface toward the first surface; and a light receiver configured to be arranged on the second surface and receiving light traveling along a second direction from the first surface toward the second surface, wherein the optically transparent member has a passage area through which at least the light emitted from the light emitter and the light entering the light receiver pass, and a shield area provided in a position except the passage area and shielding light.

19 . The biological information detection sensor according to claim 18 , further comprising an electrode pattern configured to be arranged on the second surface and electrically connecting to the light emitter and the light receiver.

20 . The biological information detection sensor according to claim 18 ,
wherein the optically transparent member is a glass substrate or resin that transmits the light from the light emitter and the light to be received by the light receiver.

Assignees

• Seiko Epson Corp

Inventors

• Matsuo Atsushi
• Matsumoto Yoshiaki

Classifications

• A61B5/0059 Primary

  using light, e.g. diagnosis by transillumination, diascopy, fluorescence (photoacoustic A61B5/0093; optical measurement of heart rate A61B5/02416; optical measurement of blood flow A61B5/0261; optical measurement of analytes A61B5/1455) · CPC title

• A61B5/02108

  from analysis of pulse wave characteristics · CPC title

• A61B5/02427 Primary

  Details of sensor · CPC title

• A61B5/02438

  with portable devices, e.g. worn by the patient · CPC title

• A61B5/681

  Wristwatch-type devices · CPC title