Biological Information Measurement Device And Pulse Oximeter

• US 20150201875A1
• Filed: 07/11/2013
• Published: 07/23/2015
• Est. Priority Date: 08/09/2012
• Status: Active Grant

• Current Assignee: Konica Minolta Inc.
• Original Assignee: Konica Minolta Inc.
• Inventors: Tateda, Norihiro, Kanazawa, Masaharu, Kamezawa, Hitoshi
• Granted Patent: US 9,642,567 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2560/0214 of power generation or supply
• CPC Class Codes: A61B 2560/0431 Portable apparatus, e.g. comprising a handle or case
• CPC Class Codes: A61B 2560/0443 Modular apparatus
• CPC Class Codes: A61B 2562/0238 Optical sensor arrangements for performing transmission measurements on body tissue
• CPC Class Codes: A61B 2562/164 the sensor is mounted in or on a conformable substrate or carrier
• CPC Class Codes: A61B 2562/166 the sensor is mounted on a specially adapted printed circuit board
• CPC Class Codes: A61B 2562/227 Sensors with electrical connectors
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/02427 Details of sensor
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses
• CPC Class Codes: A61B 5/6838 Clamps or clips
• CPC Class Codes: A61B 5/72 Signal processing specially adapted for physiological signals or for diagnostic purposes character recognition, recognising digital ink, document-oriented image-based pattern recognition G06V30/00; recognition or understanding of postal images G06V30/424

Abstract

A device includes a body part and a wearable part integrally attached to the body part and to be worn on a finger, and includes a light source unit and a light receiving unit that are arranged so as to oppose each other. The body part includes an electric circuit including a signal processor, a power supply unit, and a first terminal unit electrically connected to the electric circuit, and the wearable part includes at least one of the light source unit and the light receiving unit, and a second terminal unit electrically connected to the at least one of them. The first and second terminal units are mechanically in contact with and electrically connected to each other. The signal processor acquires a digital value concerning a pulse wave based on a signal output from the light receiving unit receiving light from the light source unit via the finger.

Claims

1. A biological information measurement device comprising:

a body part; and

a wearable part that is integrally attached to the body part and is to be worn on a finger of a living body, wherein

the biological information measurement device includes a light source unit and a light receiving unit that are arranged so as to oppose each other with said finger therebetween when said wearable part is worn on said finger,

said body part includes an electric circuit, a power supply unit, and a first terminal unit, the electric circuit including a signal processing unit, the first terminal unit being electrically connected to the electric circuit,

said wearable part includes at least one of said light source unit and said light receiving unit, and a second terminal unit that is electrically connected to the at least one of said light source unit and said light receiving unit,

said first terminal unit and said second terminal unit are mechanically in contact with and electrically connected to each other, and

said signal processing unit acquires a digital value concerning a pulse wave based on a signal output from said light receiving unit, the signal being output by said light receiving unit receiving light that is emitted from said light source unit and passes through said finger.

2. The biological information measurement device according to claim 1, wherein

said first terminal unit and said second terminal unit each include a connecter or an electrode section.

3. The biological information measurement device according to claim 1, wherein

said wearable part is detachably attached to said body part.

4. The biological information measurement device according to claim 1, wherein

said body part includes a first housing part that exposes only said first terminal unit to the outside, and

said wearable part includes a second housing part that exposes only said second terminal unit to the outside.

5. The biological information measurement device according to claim 1, wherein

attachment structure of said wearable part to said body part includes at least one of coupling by a connector, holding by a clip, and pushing of one of the body part and the wearable part into the other one of the body part and the wearable part.

6. The biological information measurement device according to claim 1, wherein

said body part includes a coupled part that is different from said first terminal unit,

said wearable part includes a coupling part that is different from said second terminal unit, and

said wearable part is attached to said body part by coupling said coupling part to said coupled part.

7. The biological information measurement device according to claim 6, wherein

said coupling part included in said wearable part is coupled to said coupled part included in said body part by at least one of an adhesion part and a coupling member.

8. The biological information measurement device according to claim 1, wherein

at least one of said light source unit and said light receiving unit is implemented in a flexible printed circuit.

9. The biological information measurement device according to claim 1, wherein

said wearable part includes said light receiving unit and a converter that converts a current signal output from said light receiving unit into a voltage signal.

10. The biological information measurement device according to claim 9, wherein

said wearable part includes a signal amplifier that amplifies said voltage signal output from said converter.

11. The biological information measurement device according to claim 1, wherein

said power supply unit includes a secondary battery.

12. The biological information measurement device according to claim 11, wherein

said body part further includes a charging circuit that charges said secondary battery.

13. The biological information measurement device according to claim 12, wherein

said charging circuit includes a circuit that charges said secondary battery without contact.

14. The biological information measurement device according to claim 1, wherein

said body part further includes a communication unit that wirelessly transmits data acquired by said signal processing unit.

15. The biological information measurement device according to claim 14, wherein

said communication unit transmits data of the digital value concerning said pulse wave acquired by said signal processing unit.

16. The biological information measurement device according to claim 14, wherein

said signal processing unit acquires, based on the digital value concerning said pulse wave, a digital value concerning one or more of oxygen saturation of blood, a pulse rate, and a pulse wave interval, and

said communication unit transmits data of the digital value concerning one or more of said oxygen saturation of blood, said pulse rate, and said pulse wave interval acquired by said signal processing unit.

17. The biological information measurement device according to claim 1, wherein

said wearable part includes an elastic body that has elasticity to hold said finger.

18. The biological information measurement device according to claim 4, wherein

said first housing part is harder than said wearable part.

19. The biological information measurement device according to claim 1, wherein

said wearable part includes a ring part that has an insertion hole into which said finger is inserted in one direction.

20. The biological information measurement device according to claim 19, wherein

said ring part is deformed by elasticity in a direction in which said insertion hole closes.

21. The biological information measurement device according to claim 19, wherein

said wearable part includes a stopper part that is provided at one end portion of said insertion hole in said one direction.

22. The biological information measurement device according to claim 21, wherein said stopper part includes a light blocking part.

23. The biological information measurement device according to claim 1, wherein

a first length of said body part in a longitudinal direction of the body part is greater than a second length of said wearable part in the longitudinal direction, and

a center position of said wearable part in said longitudinal direction is offset, from a center position of said body part in said longitudinal direction, in one direction toward one end portion of said body part in said longitudinal direction.

24. A pulse oximeter comprising:

a body part; and

a wearable part that is integrally attached to the body part and is to be worn on a finger of a living body, wherein

the pulse oximeter includes a light source unit and a light receiving unit that are arranged so as to oppose each other with said finger therebetween when said wearable part is worn on said finger,

said body part includes an electric circuit, a power supply unit, and a first terminal unit, the electric circuit including a signal processing unit, the first terminal unit being electrically connected to the electric circuit,

said wearable part includes at least one of said light source unit and said light receiving unit, and a second terminal unit that is electrically connected to the at least one of said light source unit and said light receiving unit,

said first terminal unit and said second terminal unit are mechanically in contact with and electrically connected to each other, and

said signal processing unit acquires a value concerning oxygen saturation of blood based on a signal output from said light receiving unit, the signal being output by said light receiving unit receiving light that is emitted from said light source unit and passes through said finger.