WO2004103176A1 - Systeme et procede de diagnostic de fonction d'equilibre - Google Patents

Systeme et procede de diagnostic de fonction d'equilibre Download PDF

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Publication number
WO2004103176A1
WO2004103176A1 PCT/JP2004/007402 JP2004007402W WO2004103176A1 WO 2004103176 A1 WO2004103176 A1 WO 2004103176A1 JP 2004007402 W JP2004007402 W JP 2004007402W WO 2004103176 A1 WO2004103176 A1 WO 2004103176A1
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WO
WIPO (PCT)
Prior art keywords
balance function
diagnostic system
motion
user
function diagnostic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2004/007402
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English (en)
Inventor
Toshihiko Oba
Soichiro Matsushita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gm & M Company Inc
Original Assignee
Gm & M Company Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gm & M Company Inc filed Critical Gm & M Company Inc
Publication of WO2004103176A1 publication Critical patent/WO2004103176A1/fr
Priority to US11/251,570 priority Critical patent/US20060251334A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/40—Detecting, measuring or recording for evaluating the nervous system
    • A61B5/4005—Detecting, measuring or recording for evaluating the nervous system for evaluating the sensory system
    • A61B5/4023—Evaluating sense of balance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
    • A61B5/1116—Determining posture transitions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2505/00—Evaluating, monitoring or diagnosing in the context of a particular type of medical care
    • A61B2505/07—Home care
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0219—Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6814—Head
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6823—Trunk, e.g., chest, back, abdomen, hip

Definitions

  • the present invention relates to an apparatus that is worn on the body of the user and that is used in a system that supports therapeutic knowledge-based diagnosis of the functions of balance by obtaining information on unconsciously occurring motions such as sway or inclination of the body, and to said system.
  • This system is effective in diagnosing not only diseases of the balance function and also states of functional deterioration such as the state of fatigue, for example.
  • the diagnosis of balance disorders including dizziness or vertigo
  • JP-A 8-215176 presents a known examination apparatus and system called a Stabilometer that calculates the distribution of weight applied to the soles of the feet together with the time that the user is standing straight up, thereby analyzing unconscious motions of the body (JP-A 8-215176).
  • the user steps onto an apparatus that resembles a weighing scale for home use, so that the distribution of force acting on the horizontal surface of the scale is measured by strain gages or other force sensors, and thus the diagnosis is performed by merely having the user stand on the apparatus.
  • the information measured by this apparatus is the change over time in the position of the center of gravity of the body as estimated by the distribution of force applied to the soles of the feet.
  • Motion patterns are collected in advance from those of healthy persons and persons with characteristic diseases related to balance function disorders . These motion patterns are collected over a fixed period of time of 30 seconds or 60 seconds for each of the states of eyes being open and eyes being closed.
  • a diagnosis of balance function is performed by statistical identification of a motion pattern from the pre-collected motion patters which is closest to the new motion pattern collected from the user.
  • gravity act in the direction perpendicular to the horizontal surface upon which the user stands, so it is necessary for the installation position of the measurement apparatus to be calibrated in advance with respect to gravity applied to the horizontal surface.
  • the user must be standing on both feet for at least a fixed period of time, for example, 30 seconds or 60 seconds. For this reason, the people who can be diagnosed are limited to those who can stand straight on both feet, so it is a diagnostic method that cannot be used on persons who may have a disorder of the sense of balance function, but have difficulty maintaining the standing position for long periods of time, or persons who are not easily measured in the standing position due to other symptoms.
  • the present invention came about in order to solve the aforementioned problems and its object is to make the diagnostic apparatus one of a portable size and weight and also expand the places of use and methods of use to a much greater range than those based on the prior art, thus achieving an environment wherein anyone can undergo diagnosis of balance disorders at any time or any place.
  • the user stands upon a scale-like apparatus and the diagnosis of balance disorders is performed based on the principle of measuring the distribution of gravity acting on the soles of the feet.
  • the present invention utilizes the measurement of motion at characteristic locations on the body, namely the positions of the head and waist of the user where the so-called “vertigo or dizziness” phenomenon acts, thus using motion sensor means for measuring these motions.
  • motion diagnosis means that processes signals from the motion sensor means and gives appropriate diagnostic results is also used.
  • the motion diagnosis means is not portable but rather is installed such that it is physically isolated from the motion sensor means, by making motion storage means, which temporarily stores signals from the motion sensor means using a semiconductor memory or other storage device, portable together with the motion sensor means, it is possible to adopt a configuration where diagnosis is performed by having the user carry only an even more compact and lighter apparatus.
  • the present invention provides a balance function diagnostic system comprising a portable terminal unit that can be worn on the body of the user and an analytical apparatus that analyzes the data from this portable terminal unit, wherein said portable terminal unit comprises motion sensor means that detects the motion of the body of said user, said analytical apparatus comprises motion diagnosis means that processes signals from said motion sensor means and performs diagnosis of balance function based on prerecorded motion diagnosis information, and where said balance function diagnostic system is constituted such that it is able to analyze the motion of said user and output diagnostic information related to balance function.
  • the "detection of motion” is defined to include the detection of characteristic motions that appear together with disorder or deterioration of the sense of balance, including for example, speed in linear motion, acceleration, angular velocity around various central axes of rotation, and the like.
  • the present invention provides a balance function diagnostic system comprising a portable terminal unit that can be worn on the body of the user and an analytical apparatus that analyzes the data from this portable terminal unit, wherein said portable terminal unit comprises motion sensor means that detects the motion of the body of said user and motion storage means that stores signals from said motion sensor means, said analytical apparatus comprises motion diagnosis means that processes signals from said motion sensor means and performs diagnosis of balance function based on prerecorded motion diagnosis information, and where said system is constituted such that it is able to analyze the motion of said user and output diagnostic information related to balance function.
  • the present invention provides a balance function diagnostic system comprising a portable terminal unit that can be worn on the body of the user and an analytical apparatus that analyzes the data from this portable terminal unit, wherein said portable terminal unit comprises motion sensor means that detects the motion of the body of said user and motion information sending means that sends signals from said motion sensor means wirelessly to the outside, said analytical apparatus comprises motion information receiving means that receives signals from said motion information transmission means and obtains signals from said motion sensor means, motion diagnosis means that processes signals from said motion sensor means and performs diagnosis of balance function based on prerecorded motion diagnosis information, and where said system is constituted such that it is able to analyze the motion of said user and output diagnostic information related to balance function.
  • said portable terminal unit comprises motion sensor means that detects the motion of the body of said user and motion information sending means that sends signals from said motion sensor means wirelessly to the outside
  • said analytical apparatus comprises motion information receiving means that receives signals from said motion information transmission means and obtains signals from said motion sensor means, motion diagnosis means that processes signals from said motion sensor means and performs
  • said motion diagnosis means may further comprise stimulus generation means that applies sensory stimuli to said user, so by sharing information related to the characteristics of sensory stimuli applied to said user by said stimulus generation means in said motion diagnosis means, it is possible to analyze signals from said motion sensor means with respect to specific stimuli and output diagnostic information for the balance function.
  • the present invention provides a portable terminal unit used in a balance function diagnostic system having a constitution as described above, where said motion sensor means is constituted such that it can be mounted on the top of the head of said user, and where said portable terminal unit is constituted so as to have detection sensitivity in at least the anterior/posterior direction and the left/right direction with respect to the head.
  • the present invention provides a portable terminal unit used in a balance function diagnostic system having a constitution as described above, where said motion sensor means is constituted such that it can be mounted in the waist area of said user, and where said portable terminal unit is constituted so as to have detection sensitivity in at least the anterior/posterior direction and the left/right direction with respect to the centerline of the body of said user.
  • the present invention provides a diagnostic apparatus used in a balance function diagnostic system having a constitution as described above.
  • the present invention provides a computer-readable program for the purpose of executing said motion analysis means in the diagnostic apparatus having a constitution as described above.
  • This program can also be stored on recording media.
  • FIG. 1 is a block diagram of a balance function diagnostic system according to Embodiment 1 of the present invention.
  • FIG. 2 is a block diagram of a balance function diagnostic system according to Embodiment 2 of the present invention.
  • FIG. 3 is a block diagram of a balance function diagnostic system according to Embodiment 3 of the present invention.
  • FIG. 4 is a block diagram of a balance function diagnostic system according to Embodiment 4 of the present invention.
  • FIG. 5 is a block diagram of a balance function diagnostic system according to Embodiment 5 of the present invention.
  • FIG. 6 is a block diagram of a balance function diagnostic system according to Embodiment 6 of the present invention.
  • FIG. 7 is a functional block diagram illustrating the constitution of a balance function diagnostic system according to the present invention.
  • FIG. 8 is a flowchart of one example of the processing of information by a balance function diagnostic system according to the present invention.
  • FIG. 9 is a diagram illustrating the acceleration trace pattern of a user obtained from an acceleration sensor.
  • FIG. 10 is a diagram illustrating an example of finding the surface area based on the aforementioned acceleration trace pattern.
  • FIG. 11 is a diagram illustrating an example of finding the total trace length from the aforementioned acceleration trace pattern.
  • FIG. 12 is a diagram illustrating the results of a Fourier transform from the time signal f(t) to the frequency function F( ⁇ ).
  • FIG. 1 illustrates Embodiment 1 of the present invention, where signals representing the motion of the body of the user detected by motion sensor means 10 are provided as input to motion diagnosis means 12.
  • the motion diagnosis means 12 calculates, from the signals that represent motion, physical characteristic quantities which are various parameters stored in motion diagnosis information accumulation means 14 that describe physical motion, such as the acceleration, velocity, displacement and frequency components, for example.
  • the diagnosis of balance function is performed.
  • the diagnostic results are output via diagnostic results output means 16.
  • FIG. 2 illustrates Embodiment 2 of the present invention, where at least motion sensor means 10 and motion storage means 18 that temporarily stores signals representing motion from the motion sensor means 10 are worn on the body of the user. Moreover, once the situation of motion is stored in the motion storage means 18, by connecting the output of the motion storage means 18 to the input of the motion diagnosis means 12, diagnostic result output is obtained in the same manner as the procedure recited in Embodiment 1.
  • the only constituent elements that must be on the body of the user are the motion sensor means 10 and the motion storage means 18, and the electrical signal wiring or other physical wiring need be provided between the motion storage means 18 and the motion diagnosis means 12 only after the measurement of the motion of the user is complete, so it is possible to make the measurements required for diagnosis without impeding the natural motions of the user.
  • the electrical signal wiring or other physical wiring need be provided between the motion storage means 18 and the motion diagnosis means 12 only after the measurement of the motion of the user is complete, so it is possible to make the measurements required for diagnosis without impeding the natural motions of the user.
  • FIG. 3 illustrates Embodiment 3 of the present invention, where the motion storage means 18 in Embodiment 2 is replaced by motion information sending means 20 worn by the user and motion information receiving means 22 that need not necessarily be worn by the user, so that motion information is transmitted between the two by a wireless method as a motion information signal.
  • the only constituent elements that must be worn on the body of the user are the motion sensor means 10 and the motion information sending means 20, while the other constituent elements, namely the motion information receiving means 22, motion diagnosis means 12, motion diagnosis information accumulation means 14 and diagnostic results output means 16 need not necessarily be worn on the body of the user.
  • FIG. 4 illustrates Embodiment 4 of the present invention, where the balance function diagnostic system according to Embodiment 1 is combined with stimulus generation means 24, which actively applies sensory stimuli to the user and is coupled to the motion diagnosis means 12.
  • the sensory stimuli generated by the stimulus generation means 24 may be, for example, visual stimuli given to the user by the projection of moving images onto a large screen, a light source that is given varying intensity, a head- mounted display worn on the head of the user, or other presentation of images from equipment that projects images near the eye, auditory stimuli including stereo or other three-dimensional stimuli given in an auditory manner, or active stimuli that act with physical force on the body of the user, such as pressure applied on the back of the user, for example.
  • the stimulus generation means 24 which gives these kinds of stimuli, by transmitting to the motion diagnosis means 12 information as to when the stimulus generation means 24 gave what kind of stimuli to the user, it is possible to easily identify the corresponding signals from the motion sensor, thus making active diagnosis of balance function possible.
  • the stimulus generation means 24 according to this embodiment may also be used together with Embodiment 2 or 3 of the present invention, and in either case the weight of equipment that must be worn on the body of the user can be reduced and also the natural motions of the user are not impeded by physical electrical signal wiring or the like, so it is possible to perform motion diagnosis of the user under application of external stimuli in a more natural situation. (Embodiment 5)
  • FIG. 5 illustrates an example of the balance function diagnostic apparatus 1 according to Embodiment 5 of the present invention, being an example where a motion sensor 30 consists offeree sensors or acceleration sensors, mounted on the top of the head, that are sensitive in the anterior/posterior direction and the left/right direction with respect to the head. ote that at the time of measurement, it is preferable that the head of the user be in the same orientation as when standing straight with respect to the ground, namely the top of the head should be furthest from the ground.
  • the change in the angle with respect to the ground is mostly a slow change in contrast to linear motion, so by extracting from the signal from the acceleration sensor only the high-frequency components, namely the components that change with a period of roughly 2 cycles per second or greater, it is possible to perform appropriate diagnosis.
  • the diagnosis is performed after removing as noise the signal components output from the acceleration sensor (e.g., the low-frequency components) due to the change in posture of the user.
  • FIG. 6 illustrates an example of the balance function diagnostic apparatus 2 according to Embodiment 6 of the present invention, being an example where motion sensor means 34 consists of a motion sensor worn at the waist of the user and secured to the front of the body at the waist using a belt-like jig 32.
  • the waist is the part of the body that serves as the base for nearly all of the motions of the human body, so random motions that are meaningless in the diagnosis of balance function occur less readily than in the extremities such as the hands or feet and thus highly reliable motion information is obtained. Accordingly, while the motion sensor is placed on the front of the body at the waist in this embodiment, similar meritorious effects can be obtained even if it is placed at the center of the back. Measurement of body sway is effective in the diagnosis of balance function, so measurement of the forward and backward/left and right motions of the waist area which is near the center of the body is effective, and thus it is preferable to use acceleration sensors or angular velocity sensors that are sensitive in these respective directions.
  • FIG. 7 is a functional block diagram illustrating the constitution of a balance function diagnostic system 3 according to the present invention.
  • acceleration sensors 36 serving as the motion sensor means for detecting motion in the X-axis and motion in the Y-axis are electrically connected to analog/digital converters 40 and 42, respectively, and moreover the analog/digital converters 40 and 42 are electrically connected to a microcomputer 44.
  • the microcomputer 44 is provided with an electrically connected diagnostic information memory 46, startup switch 48, diagnostic result output device 50 and speaker 52.
  • the acceleration sensor 36 serving as the motion sensor means will be described.
  • the acceleration sensor 36 consists of a sensor for detecting motion in the X-axis 36a and a sensor for detecting motion in the Y-axis 36b, thus calculating the acceleration by measuring the forces acting on a weight in the interior of the sensor.
  • the acceleration sensor 36 is mounted on the top of the head as shown in FIG. 5 or at the waist as shown in FIG. 6.
  • the acceleration sensor 36 it is preferable for the acceleration sensor 36 to be mounted on the top of the head as shown in FIG. 5 or at the waist as shown in FIG. 6.
  • the acceleration sensor by mounting an acceleration sensor on the top of the head, it is possible to measure sway at the top of the head with good reproducibility and low error, without calibrating the relationship between the orientation (angle) and acceleration.
  • an acceleration sensor at the waist which is equivalent to the center of the body, random motions that are meaningless in the diagnosis of balance function occur less readily than in the extremities such as the hands or feet and thus highly reliable motion information is obtained.
  • it is preferably mounted at the position of the navel which is near the center of gravity of the human body and positioned along the centerline of the body.
  • the acceleration sensor 36 used in the present invention preferably has sufficient resolution to resolve an acceleration of roughly 5/1000 G or less.
  • the microcomputer 44 has the function of performing arithmetic processing on the acceleration signals received from the acceleration sensor 36 based on the characteristic quantity data used to determine a diagnosis. Specifically, it has a diagnostic information memory 46 as the motion diagnosis accumulation means that stores information used to determine a diagnosis, and motion diagnosis means (not shown) that analyzes signals received from the acceleration sensor 36 based on the motion characteristic quantity data used to determine a diagnosis, and has the function of providing output of the results of this process to the diagnostic result output device 50 and speaker 52 to be described later.
  • the diagnostic result output device 50 is a device that provides output of the diagnostic results from the microcomputer 44 to the outside, so that the diagnostic results can be displayed on the screen of a monitor, or the diagnostic results can be printed by a printer or the like on paper media.
  • the analog/digital converters 40 and 42 are devices that convert the analog signals output from the acceleration sensor 36 into digital signals.
  • the speaker 52 is a device used to convey the start of measurement with a sound, provide voice output of the diagnostic results from the microcomputer 44, provide voice output of operating signals for the operator, and otherwise serve as an auxiliary output of the diagnostic result output device 50.
  • the analog/digital converters 40 and 42 and speaker 52 are not particularly limited in their type, so commercially available units may be used.
  • the balance function diagnostic system 3 according to the present invention may also comprise motion storage means that temporarily stores information from the acceleration sensor 36, motion information sending means that sends information from the acceleration sensor 36 wirelessly, and motion information receiving means that receives signals from the motion information transmission means and transmits those signals to the motion diagnosis means.
  • the startup switch of the balance function diagnostic system of the present invention When the startup switch of the balance function diagnostic system of the present invention is moved to ON (STl), the balance function diagnostic system starts up and measurement by the acceleration sensor starts several seconds after the startup switch is ON.
  • the diagnostic apparatus it is preferable that the diagnostic apparatus be attached to the body before the startup switch is turned ON.
  • the time from startup to the start of measurement can be set appropriately depending on the situation, such as in the case in which the person to undergo diagnosis performs the measurement himself/herself, or the case in which another person operates the apparatus.
  • the timing of the start/end of measurement can be indicated using a LED or other light, but there are cases in which an optical notification method is not appropriate, such as in the case that the user performs the measurement alone and the main apparatus is not within the field of view of the user or if the user must close their eyes as a condition of measurement.
  • the start and end of measurement are audibly conveyed to the user in the form of sound effects from the speaker (ST2).
  • the motion data collected from the acceleration sensor may be the physical characteristic quantities of acceleration, velocity, displacement and frequency components, for example, which are stored in the computer by the motion storage means (ST3).
  • the stored motion data may be stored temporarily and deleted at the time of the end of measurement, or overwritten with newly collected motion data at the time of the next measurement.
  • Measurement can typically be performed in 30 to 60 seconds, but the measurement time can also be set appropriately depending on the condition of the user. For example, a patient with severe impairment of the brain function may find it difficult to maintain the standing position for a fixed period of time, so the measurement time may be set to the shortest value, or when examining a patient on the first examination for a diagnosis of dizziness or vertigo, it is necessary to determine the degree of dizziness, so the measurement time can be set to the longest value, or other changes are possible.
  • a sound effect or the like notifies the user of the end of measurement (ST4). At this time, they user may remove the diagnostic apparatus from the body.
  • the microcomputer calculates the motion characteristic quantities of the collected motion data (ST5).
  • the motion characteristic quantities thus obtained are compared against motion characteristic quantities measured and recorded previously from healthy persons or non-healthy persons with specific disorders of balance function, or namely compared against diagnostic determination data as motion diagnostic information (ST6).
  • the information obtained as a result of the comparison is output from the diagnostic result output device as diagnostic information (ST7).
  • the diagnostic information may be displayed on the screen of a display or the like or printed on paper media by a printer or the like.
  • the measurement may be performed while standing or while sitting, and there is no need for the user to be standing continuously during measurement as is required with a prior-art balance diagnostic apparatus.
  • FIG. 9 presents a motion trace from a user as obtained from the acceleration sensor.
  • the mounting location of the acceleration sensor is the top of the head as shown in FIG. 5.
  • FIG. 9(b) illustrates the value of the acceleration over time as a trace pattern. In this figure, from the acceleration value at time t ⁇ and the acceleration value at time t 2 , it is possible to find a characteristic quantity that indicates how much the axis of the body has swayed over a fixed period of time.
  • FIG. 10 illustrates an example of finding the surface area based on the acceleration trace pattern described above.
  • the length of the outermost periphery is calculated from the two-dimensional acceleration trace.
  • the surface area of the range enclosed by the outermost periphery is found to find a characteristic quantity that represents how much the head of the user swayed over how much of a range at most.
  • FIG. 11 presents an example of finding the total trace length from the acceleration trace pattern.
  • the trace of acceleration is plotted over time from the time t to t 2 , t 3 , ... t formula, and the distances between the plotted points are found as the trace lengths L h L 2 , ....
  • the length L ⁇ of the acceleration trace from time t ⁇ to time t
  • the length L 2 of the acceleration trace from time t 2 to time t 3 , ...
  • total trace length length L of the acceleration trace from time t x to time t 2 + length L 2 of the acceleration trace from time t 2 to time t 3 + length of the acceleration trace from time t perennial-l to time t n
  • the relationship between time and acceleration takes the form of the graph in FIG. 12(a)
  • a Fourier transform is performed from the time signal f(t) to the frequency function F( ⁇ )
  • a graph illustrating the relationship of the amplitude to the frequency such as that in FIG.
  • the balance function diagnostic apparatus and system according to the present invention was described in the case of being used to measure the balance function of a human, but the balance function diagnostic apparatus and system according to the present invention can also be applied to a standing two-legged walking-type robot.
  • the balance function diagnostic apparatus and system according to the present invention can also be applied to a standing two-legged walking-type robot.
  • the microcomputer by subjecting the information obtained from the motion sensor to information processing by the microcomputer and by reflecting the diagnostic results in the operation of the hands and feet or other extremities, it becomes possible to form a posture that will prevent the robot from toppling over. Even in the case that the robot should topple, it is also possible to send the robot commands to form a posture that will minimize the shock upon toppling.
  • the balance function diagnostic apparatus and system according to the present invention performs measurements using an acceleration sensor or other motion sensor mounted upon a portion of the body, so the presence of gravity is not assumed as in the case of the scale-type measurements according to the prior art, and there are also no limitations on location. Thus, it can also be used in a zero-gravity environment such as that in space.
  • the user can perform daily diagnosis of the balance function with no necessity for the user to go to a medical facility, so the state of health can be easily determined on an everyday basis.
  • the diagnostic apparatus and system according to the present invention may also be utilized to perform quantitative evaluation of the balance function, evaluation of the gravity of balance disorders, evaluation of the degree of improvement of balance disorders, evaluation of the effectiveness of treatment, as an index of development of the balance function, and for inferring the damaged organ causing balance disorder, etc.

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Abstract

L'invention porte sur un système et sur un appareil portatif et léger de diagnostic d'équilibre, et dont les procédés d'utilisation portent sur une large gamme, ce qui permet d'avoir un environnement dans lequel quiconque peut subir un diagnostic des troubles de l'équilibre n'importe quand et n'importe où. Au moins un capteur de mouvement (10) et un dispositif d'enregistrement des mouvements (18) stockant provisoirement des signaux qui représentent le mouvement détecté par le capteur (10) sont placés sur le corps de l'utilisateur. De plus, une fois que la situation de mouvement est stockée dans le dispositif d'enregistrement des mouvements (18), l'entrée du dispositif de diagnostic de mouvements (12) est connectée à la sortie du dispositif d'enregistrement des mouvements (18) de façon à obtenir les résultats de diagnostic avec ce système de diagnostic de fonction d'équilibre.
PCT/JP2004/007402 2003-05-22 2004-05-24 Systeme et procede de diagnostic de fonction d'equilibre Ceased WO2004103176A1 (fr)

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US11/251,570 US20060251334A1 (en) 2003-05-22 2005-10-13 Balance function diagnostic system and method

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JP2003-145400 2003-05-22
JP2003145400A JP4471588B2 (ja) 2003-05-22 2003-05-22 平衡感覚機能診断システムおよびそれに用いられる装置

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007115565A2 (fr) 2006-04-10 2007-10-18 Arneborg Ernst Appareil mobile pour troubles de l'équilibre
EP1859738A1 (fr) * 2006-05-27 2007-11-28 Arneborg Ernst Système portable de diagnostic de fonction d'équilibre
WO2008058567A1 (fr) * 2006-11-17 2008-05-22 Balance International Innovations Gmbh Système et procédé pour fournir une rétroaction de stabilomtrie au corps d'un sujet
DE202007019380U1 (de) 2006-04-10 2012-02-17 Arneborg Ernst Mobile Gleichgewichtsprothese
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DE202007019380U1 (de) 2006-04-10 2012-02-17 Arneborg Ernst Mobile Gleichgewichtsprothese
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WO2008058567A1 (fr) * 2006-11-17 2008-05-22 Balance International Innovations Gmbh Système et procédé pour fournir une rétroaction de stabilomtrie au corps d'un sujet
US10342461B2 (en) 2007-10-15 2019-07-09 Alterg, Inc. Method of gait evaluation and training with differential pressure system
US12171715B2 (en) 2007-10-15 2024-12-24 Alterg, Inc. Systems, methods and apparatus for differential air pressure devices
US10004656B2 (en) 2007-10-15 2018-06-26 Alterg, Inc. Systems, methods and apparatus for differential air pressure devices
US9642764B2 (en) 2009-05-15 2017-05-09 Alterg, Inc. Differential air pressure systems
US12239595B2 (en) 2009-05-15 2025-03-04 Alterg, Inc. Differential air pressure systems
US11752058B2 (en) 2011-03-18 2023-09-12 Alterg, Inc. Differential air pressure systems and methods of using and calibrating such systems for mobility impaired users
US12178772B2 (en) 2011-03-18 2024-12-31 Alterg, Inc. Differential air pressure systems and methods of using and calibrating such systems for mobility impaired users
US9451916B2 (en) 2011-08-02 2016-09-27 Sway Medical Llc System and method for assessing postural sway and human motion
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US9914003B2 (en) 2013-03-05 2018-03-13 Alterg, Inc. Monocolumn unweighting systems
US10493309B2 (en) 2013-03-14 2019-12-03 Alterg, Inc. Cantilevered unweighting systems
US10265565B2 (en) 2013-03-14 2019-04-23 Alterg, Inc. Support frame and related unweighting system
US11806564B2 (en) 2013-03-14 2023-11-07 Alterg, Inc. Method of gait evaluation and training with differential pressure system
EP3017761A1 (fr) 2014-11-06 2016-05-11 Fundacíon Tecnalia Research & Innovation Procédé et système d'évaluation d'équilibrage fonctionnel
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US11517781B1 (en) 2017-06-22 2022-12-06 Boost Treadmills, LLC Unweighting exercise equipment
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US12226668B2 (en) 2017-10-31 2025-02-18 Alterg, Inc. System for unweighting a user and related methods of exercise
US20210298646A1 (en) * 2020-01-18 2021-09-30 Michael PENNINGTON Orthostatic reporting assembly, orthostatic reporting system, and related method of use
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