INFORMATION ACQUISITION APPARATUS

• US 20160242683A1
• Filed: 02/23/2016
• Published: 08/25/2016
• Est. Priority Date: 02/24/2015
• Status: Abandoned Application

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: ISHIGURO, Hideto, EGUCHI, Tsukasa, TSUCHIYA, Hitoshi, ITO, Megumu
• Application Number:
  US15/050,860
• Publication Number:
  US 20160242683A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 2560/0233 Optical standards
• CPC Class Codes: A61B 2562/0233 Special features of optical sensors or probes classified in A61B5/00
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/1495 Calibrating or testing of in-vivo probes
• CPC Class Codes: A61B 5/6824 Arm or wrist
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: G01N 21/31 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry G01N21/72 takes precedence
• CPC Class Codes: G01N 21/474 Details of optical heads therefor, e.g. using optical fibres
• CPC Class Codes: G01N 21/4785 Standardising light scatter apparatus; Standards therefor
• CPC Class Codes: G01N 21/4795 spatially resolved investigating of object in scattering medium in vivo A61B

Abstract

A component measurement apparatus includes: a first unit including a sensor module that receives first reflected light reflected at a measured portion, and that outputs a signal corresponding to light intensity of the first reflected light; and a second unit separately provided from the first unit, the second unit including a calibration plate that has a stable reflectance and that outputs second reflected light to the sensor module, the second reflected light being used for comparing the light intensity of the first reflected light.

Claims

1. An information acquisition apparatus comprising:

a first unit including a photoreceiver that receives first reflected light reflected at an object, and that outputs a signal corresponding to light intensity of the first reflected light; and

a second unit separately provided from the first unit, the second unit including a calibrator that has a stable reflectance and that outputs second reflected light to the photoreceiver, the second reflected light being used for comparing the light intensity of the first reflected light.

2. The information acquisition apparatus according to claim 1, wherein the first unit and the second unit include locating sections with which the photoreceiver and the calibrator are installed face to face.

3. The information acquisition apparatus according to claim 1, wherein the photoreceiver includes:

a light-emitting device that emits light applied to the calibrator or the object; and

a light-receiving device that receives the second reflected light or the first reflected light,

the light-emitting device and the light-receiving device having optical axes in the same direction.

4. The information acquisition apparatus according to claim 1, wherein the calibrator contains polytetrafluoroethylene.

5. The information acquisition apparatus according to claim 1, wherein the first unit includes:

a glucose level arithmetic section that computes a glucose level using an output signal from the photoreceiver of which signal corresponds to light intensity of the first reflected light;

a determining section that compares the glucose level with a determination value to determine whether the object is in an abnormal state; and

a warning section that gives a warning when the object is in an abnormal state.

6. The information acquisition apparatus according to claim 5,

wherein the first unit includes a sending section that sends information of the glucose level, and

wherein the second unit includes a receiving section that receives information of the glucose level, and a storage section that stores information of the glucose level.

7. The information acquisition apparatus according to claim 6, wherein the second unit includes an analysis arithmetic section that analyzes information of the glucose level.

8. The information acquisition apparatus according to claim 7,

wherein the analysis arithmetic section selects a countermeasure for the object, and

wherein the second unit includes a display section that displays the countermeasure.