BRAIN DISORDER EVALUATION APPARATUS

• US 20170112426A1
• Filed: 04/20/2015
• Published: 04/27/2017
• Est. Priority Date: 04/21/2014
• Status: Active Grant

• Current Assignee: Maxell, Ltd.
• Original Assignee: Hitachi Maxell Limited (Maxell, Ltd.)
• Inventors: YIN, Ying
• Granted Patent: US 10,736,556 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/1124 Determining motor skills
• CPC Class Codes: A61B 5/16 Devices for psychotechnics using teaching or educational appliances G09B1/00 - G09B7/00; Testing reaction times ; Devices for evaluating the psychological state
• CPC Class Codes: A61B 5/4064 Evaluating the brain A61B5/031, A61B5/369, A61B5/14553 take precedence
• CPC Class Codes: A61B 5/4088 Diagnosing of monitoring cognitive diseases, e.g. Alzheimer, prion diseases or dementia
• CPC Class Codes: G16H 20/30 relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
• CPC Class Codes: G16H 20/70 relating to mental therapies, e.g. psychological therapy or autogenous training
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 50/70 for mining of medical data, e.g. analysing previous cases of other patients

Abstract

A brain disorder evaluation apparatus adjusts a prompt cycle of body movement tasks according to individual differences, and includes: a body movement prompt unit, which prompts body movement tasks to a subject; a body movement detection unit, which detects body movement data of a subject; an operation input unit, which receives the input information; an output unit; a storage unit; and a data processing unit which includes, a body movement task selection part, which selects the body movement tasks, a data obtainment part, an indicative data generation part, which generates an indication cycle by means of information input from the operation input unit and the body movement accuracy obtained by the calculations of a body movement accuracy computation part, and generates indication data according to the above-mentioned indication cycle, the body movement accuracy computation part, and a cognitive impairment degree evaluation part.

Claims

1. A brain disorder evaluation apparatus, comprising:

a body movement prompt unit, which prompts body movement tasks to a subject;

a body movement detection unit, which detects body movement data of the subject related to the body movement made according to the body movement tasks prompted;

an operation input unit, which receives the input information;

an output unit, which outputs the information to the outside;

a storage unit, which is able to store various pieces of data from other unit; and

a data processing unit, comprising;

a body movement task selection part, which selects the body movement tasks input through the operation input unit or the preset body movement tasks;

a data obtainment part, which obtains the information input through the operation input unit, the body movement data of the body movement of the subject detected by the body movement detection unit, and the body movement accuracy obtained from a body movement accuracy computation part;

an indicative data generation part, which generates an indication cycle by means of the information input from the operation input unit and obtained by the data obtainment part, and the body movement accuracy obtained by the calculations of the body movement accuracy computation part, and generates indicative data according to the body movement tasks selected by the body movement task selection part using the above-mentioned indication cycle;

the body movement accuracy computation part, which computes the body movement accuracy according to the body movement data and the body movement prompt data; and

a cognitive impairment degree evaluation part, which evaluates the degree of cognitive impairment according to the body movement accuracy.

2. The brain disorder evaluation apparatus according to claim 1, wherein,

in the indicative data generation part, when the body movement accuracy of the subject is continuously equal to or greater than the predetermined body movement accuracy for more than specified times, the indication cycle is decreased by a specified value;

and when the body movement accuracy of the subject is continuously smaller than the predetermined body movement accuracy for more than specified times, the indication cycle is increased by a specified value.

3. The brain disorder evaluation apparatus according to claim 1, wherein,

the indicative data generation part comprises:

an initial setting part, which sets an initial prompt cycle T₀, a maximum prompt cycle T_max, a minimum prompt cycle T_min, an adjustment degree t, and a standard movement accuracy M₀, according to the information input through the operation input unit and obtained by the data obtainment part;

a body movement accuracy comparison part, which compares the body movement accuracy obtained by the calculations of the body movement accuracy computation part with the standard movement accuracy M₀ set in the initial setting part; and

,

an adjustment part, which adjusts the prompt cycle, wherein when the comparison result in the body movement accuracy comparison part is that the body movement accuracy obtained by the calculations of the body movement accuracy computation part is equal to or greater than the standard movement accuracy M₀, the prompt cycle is made as the value deducted by the adjustment degree t, and when the value deducted by the adjustment degree t is smaller than the minimum prompt cycle T_min, the prompt cycle is made as T_min; and

when the comparison result in the body movement accuracy comparison part is that the body movement accuracy obtained by the calculations of the body movement accuracy computation part is smaller than the standard movement accuracy M₀, the prompt cycle is made as the value added with the adjustment degree t, and when the value added with the adjustment degree t is equal to or greater than the maximum prompt cycle T_max, the prompt cycle is made as T_max.

4. The brain disorder evaluation apparatus according to claim 3, wherein,

the indicative data generation part further comprises an adjustment times counting part, which presets the adjustment times N of the prompt cycle, and counts the times of the adjustment part for adjusting the prompt cycle, and

when the count of the adjustment times counting part reaches the adjustment times N, the adjustment part stops adjusting the prompt cycle.

5. The brain disorder evaluation apparatus according to claim 3, wherein,

in the adjustment part, when the comparison result in the body movement accuracy comparison part is that the body movement accuracy obtained by the calculations of the body movement accuracy computation part is equal to or greater than the standard movement accuracy M₀, the prompt cycle is made as the value deducted by the adjustment degree t, and when the value deducted by the adjustment degree t is smaller than the minimum prompt cycle T_min, the adjustment degree t is decreased by the predetermined range and the prompt cycle is recomputed until the prompt cycle is greater than T_min;

and when the comparison result in the body movement accuracy comparison part is that the body movement accuracy obtained by the calculations of the body movement accuracy computation part is smaller than the standard movement accuracy M₀, the prompt cycle is made as the value added with the adjustment degree t, and when the value added with adjustment degree t is equal to or greater than the maximum prompt cycle T_max, the adjustment degree t is decreased by the predetermined range and the prompt cycle is recomputed until the cycle is smaller than T_max.

6. The brain disorder evaluation apparatus according to claim 5, wherein,

the decreased predetermined range of the adjustment degree is 25% to 50%.