Information processing apparatus, method and storage medium

Patent metadata

Field	Value
Publication number	US-10602935-B2
Application number	US-201514850245-A
Country	US
Kind code	B2
Filing date	Sep 10, 2015
Priority date	Jan 22, 2015
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

According to one embodiment, an information processing apparatus includes an acquisition module, a feature calculator and a blood pressure value calculator. The acquisition module is configured to acquire a basic first attribute of a user, a second attribute related to a physique of the user, a third attribute related to a circulatory organ of the user, and a biological signal related to a living body of the user. The feature calculator is configured to calculate a feature in the biological signal. The blood pressure value calculator is configured to calculate a blood pressure value of the user, based on the first attribute, the second attribute, the third attribute, and the feature.

First claim

What is claimed is:

1. An information processing apparatus comprising:
a storage configured to store sets of parameters for each of a supine position and a seated position of a user, each set of parameters comprising first to sixth parameters including four parameters respectively applied to each of a basic first attribute of the user, a second attribute related to a physique of the user, a blood total cholesterol value of the user, and a feature, the four applied parameters being obtained by carrying out a multiple regression analysis using the first attribute, the second attribute, the blood total cholesterol value, and the feature as input variables, and using a first blood pressure value measured in advance as a response variable; and
a processor connected to the storage and configured to:
acquire the first attribute, second attribute, blood total cholesterol value, and a biological signal related to a living body of the user;
calculate the feature in the biological signal;
estimate the seated position or the supine position as an attitude of the user, based on a direction of acceleration due to gravity detected by an acceleration sensor;
select the set of first to sixth parameters for the seated position or the supine position estimated as the attitude of the user; and
calculate a second blood pressure value of the user, by applying the selected first to sixth parameters to the acquired first attribute, second attribute, blood total cholesterol value, and the feature, according to Equation (1):
α1*MPWTT+α2*MRRI+α3* P 1+α4* P 2+α5* P 3+α6,  (1)

where MPWTT is a mean pulse wave transit time of the user, MRRI is a heartbeat interval of the user, P 1 is the first attribute, P 2 is the second attribute, P 3 is the blood total cholesterol value, and α 1 -α 6 are the first to sixth parameters.

2. The information processing apparatus of claim 1 , wherein the processor is configured to:
acquire, as the biological signal, a first pulse wave signal related to a pulse wave at a first body surface position of the user, and a second pulse wave signal related to a pulse wave at a second body surface position of the user different from the first body surface position or an electrocardiographic signal related to an electrical activity of a heart of the user; and
calculate the mean pulse wave transit time or a pulse wave velocity, based on the first pulse wave signal, and the second pulse wave signal or the electrocardiographic signal.

3. The information processing apparatus of claim 1 , wherein the processor is configured to:
acquire, as the biological signal, a pulse wave signal related to a pulse wave or an electrocardiographic signal related to an electrical activity of a heart of the user; and
calculate the heartbeat interval or a heart rate, based on the pulse wave signal or the electrocardiographic signal.

4. The information processing apparatus of claim 1 , wherein the processor is configured to acquire a pulse wave signal related to a pulse wave of the user as the biological signal.

5. The information processing apparatus of claim 1 , wherein
the information processing apparatus is communicably connected to a biological sensor, the biological sensor configured to be attached to the user when used and being configured to measure the biological signal, and
the processor is configured to acquire the biological signal from the biological sensor.

6. The information processing apparatus of claim 1 , wherein
the processor is configured to acquire at least one of age, sex, and race of the user as the first attribute, or acquire at least one of a regional length of a body region of the user and an index value indicating a degree of a corpulent physique of the user as the second attribute, and
the first attribute or the second attribute is acquired based on a captured image of the user.

7. The information processing apparatus of claim 6 , wherein when a value of the second attribute is the regional length, the regional length includes at least one of a neck circumference, an abdominal circumference, and a hip circumference of the user.

8. The information processing apparatus of claim 6 , wherein when a value of the second attribute is the index value, the index value includes at least one of a body mass index (BMI) value, a body adiposity index (BAI) value, a degree of corpulence, and body fat percentage.

9. The information processing apparatus of claim 1 , wherein
the processor is configured to acquire at least one of age, sex, race, disease history, drinking history, and smoking history of the user as the first attribute, acquire at least one of a regional length of a body region of the user and an index value indicating a degree of a corpulent physique of the user as the second attribute, and
the first attribute, the second or the blood total cholesterol value is acquired from an external device communicably connected to the information processing apparatus.

10. The information processing apparatus of claim 1 , wherein
the processor is configured to acquire at least one of age, sex, race, disease history, drinking history, and smoking history of the user as the first attribute, or acquire at least one of a regional length of a body region of the user and an index value indicating a degree of a corpulent physique of the user as the second attribute.

11. The information processing apparatus of claim 1 , wherein
the blood total cholesterol value is a blood test result of the user, and
the processor is configured to acquire the blood test result from an external device communicably connected to the information processing apparatus.

12. The information processing apparatus of claim 1 , wherein the processor is configured to:
acquire the biological signal from a biological sensor configured to measure the biological signal via contact with a predetermined measured region of the user; and
change a position of the biological sensor to make a relative position of the measured region with respect to a position of a heart estimated from a captured image of the user fall within a predetermined range.

13. The information processing apparatus of claim 1 , comprising a display configured to display the second blood pressure value.

14. The information processing apparatus of claim 1 , further comprising a transmitter configured to transmit the second blood pressure value to an external device communicably connected to the information processing apparatus.

15. A method comprising:
storing sets of parameters for each of a supine position and a seated position of a user, each set of parameters comprising first to sixth parameters including four parameters respectively applied to each of a basic first attribute of the user, a second attribute related to a physique of the user, a blood total cholesterol value of the user, and a feature, the four applied parameters being obtained by carrying out a multiple regression analysis using the first attribute, the second attribute, the blood total cholesterol value, and the feature as input variables, and using a first blood pressure value measured in advance as a response variable;
acquiring the first attribute;
acquiring the second attribute;
acquiring the blood total cholesterol value;
acquiring a biological signal related to a living body of the user;
calculating, using a processor, the feature in the biological signal;
estimating, using the processor, the seated position or the supine position as an attitude of the user, based on a direction of acceleration due to gravity detected by an acceleration sensor;
selecting, using the processor, the set of the

Assignees

• Tdk Corp

Inventors

• Fuke Sawa
• Takakura Junya
• Yamauchi Yasunobu
• Nakayama Kanako
• Suzuki Takuji

Classifications

• A61B5/0077

  Devices for viewing the surface of the body, e.g. camera, magnifying lens · CPC title

• A61B5/0046

  Arrangements of imaging apparatus in a room, e.g. room provided with shielding or for improved access to apparatus · CPC title

• A61B5/7278

  Artificial waveform generation or derivation, e.g. synthesizing signals from measured signals · CPC title

• A61B5/1072

  measuring distances on the body, e.g. measuring length, height or thickness (A61B5/1076 takes precedence) · CPC title

• A61B5/6801

  specially adapted to be attached to or worn on the body surface · CPC title