WO2022225452A1 - Système de test de moteur de mouvement de table - Google Patents

Système de test de moteur de mouvement de table Download PDF

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Publication number
WO2022225452A1
WO2022225452A1 PCT/SG2022/050228 SG2022050228W WO2022225452A1 WO 2022225452 A1 WO2022225452 A1 WO 2022225452A1 SG 2022050228 W SG2022050228 W SG 2022050228W WO 2022225452 A1 WO2022225452 A1 WO 2022225452A1
Authority
WO
WIPO (PCT)
Prior art keywords
test system
motion motor
motor test
touch sensor
detection plate
Prior art date
Application number
PCT/SG2022/050228
Other languages
English (en)
Inventor
Wee Kiat TAN
Wei Tech ANG
Lek Syn LIM
Shupei Phyllis LIANG
Wai Hang KWONG
Ananda Ekaputera SIDARTA
Original Assignee
Nanyang Technological University
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 Nanyang Technological University filed Critical Nanyang Technological University
Publication of WO2022225452A1 publication Critical patent/WO2022225452A1/fr

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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
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6891—Furniture
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording 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, mobility of a limb
    • A61B5/1116—Determining posture transitions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording 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, mobility of a limb
    • A61B5/1118—Determining activity level
    • 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
    • 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
    • A61B2562/0252—Load cells
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/1036—Measuring load distribution, e.g. podologic studies

Definitions

  • the present disclosure relates to motion motor test systems for collecting kinetic data of a subject while the subject is carrying out a motion motor dexterity test.
  • ADL BACKGROUND Assessment of human movement performance in activities of daily living
  • Many clinical tests assess human movement in ADL tasks, and the instrument used can vary from a complex setup to a simple test kit.
  • One of the most robust and accurate methods is the use of motion capture technology for objective assessment of human movement in term of the level of impairment and function in people with movement impairment, such as stroke survivors, to track the level of recovery and determine the efficacy of treatments.
  • This technology can capture subject posture in time-varying dimensional movement data by using infrared reflective markers, and specialized cameras. These specialized cameras can emit infrared light and capture the infrared light reflected by the markers.
  • ARAT Action Research Arm Test
  • WMFT Wolf Motor Function
  • a motion motor test system comprises: a table top provided with a touch sensor and a pressure sensor; and a data acquisition device electrically coupled to the touch sensor and the pressure sensor and configured to generate synchronized sensor data.
  • the synchronized sensor data may be synchronized using motion capture data captured while a subject carries out clinical assessment tests. This allows captured kinetic data from the touch sensor and the pressure sensor to be correlated with kinematic data relating to how a subject moves during the clinical assessment tests.
  • the pressure sensor is arranged adjacent to an edge of the table top.
  • the motion motor test system further comprises a second touch sensor and a second pressure sensor.
  • a subject is doing an upper limb test, other than the trunk compensation, the arms can be exerting force onto the table unknowingly. Therefore, pairs of sensors are provided. The embedded sensors are used to measure the force exerted by the arms. The data can be analyzed to determine whether the patient had imbalance compensation.
  • the motion motor test system may further comprise a shelf portion arranged above the table top, the shelf portion being provided with a shelf touch sensor. This allows for monitoring of the subject carrying out tests which involve lifting objects onto the shelf or touching the shelf.
  • the touch sensor may be a capacitive touch sensor.
  • the pressure sensor may be a load ceil.
  • the motion motor test system further comprises an object detection plate having a coupling portion configured to with an object provided with a touch sensor. This allows tests involving the subject picking up an object such as a cube shaped object or a cylindrical object.
  • the object detection plate may be detachable from the table top of the motion motor test system.
  • the object detection plate and the table top are configured to fix a relative alignment with one another.
  • the relative alignment of the object detection plate and the table top may be fixed with magnets provided on the object detection plate and embedded into the table top.
  • the relative alignment of the object detection plate and the table top may be fixed by a jack and socket.
  • FIG.1A is a perspective view from the front of a table motion motor test system according to an embodiment of the present invention.
  • FIG.1 B is a perspective view from the rear of a table motion motor test system according to an embodiment of the present invention.
  • FIG.2 shows a pressure sensor of a table motion motor test system according to an embodiment of the present invention
  • FIG.3 shows a shelf component of a table motion motor test system according to an embodiment of the present invention
  • FIG.4A shows an object detection plate for use with a table motion motor test system according to an embodiment of the present invention
  • FIG.4B shows an underside view of an object detection plate for use with a table motion motor test system according to an embodiment of the present invention
  • FIG.5 shows mounting points for an object detection place on a table motion motor test system according to an embodiment of the present invention
  • FIG.6A shows an exploded view of a cube object for use with an object detection plate on a table motion motor test system according to an embodiment of the present invention
  • FIG.6B shows an exploded view of a cylindrical object for use with an object detection plate on a table motion motor test system according to an embodiment of the present invention
  • FIG.7 is a block diagram showing data processing in a table motion motor test system according to an embodiment of the present invention.
  • the present disclosure provides a table system for carrying out motion motor tests quantifying a patient’s motor mobility.
  • the table system may be used as part of the Wolf Motor Motion Test.
  • Wolf Motor Motion Test is a 15-tasks test to quantify upper extremity movement ability through timed single or multiple joint motions and functional tasks.
  • FIG.1A and FIG.1B show a table motion motor test system with embedded sensors according to an embodiment of the present invention.
  • FIG.1A is a perspective view from the front of the table motion motor test system and
  • FIG.1 B is a perspective view from the rear of the table.
  • the table motion motor test system 100 comprises a table surface 110 which is supported by column portions 102 which extend vertically from pedestal portions 104 which rest against the floor.
  • the pedestal portions 104 are provided with wheels or castors to allow the table motion motor test system to be positioned.
  • a computer chassis 106 is provided below the table surface 110 and is supported by one of the column portions 102. A subject would sit at a front edge of the table motion motor test system 100 as seen in FIG.1 A and the computer chassis 106 is arranged close to the rear edge of the table motion motor test system 100.
  • a left hand pressure sensor 120 is provided over an area from the front edge offset to the left hand side.
  • a right hand pressure sensor 130 is provided over an area from the front edge offset to the right hand side.
  • a left hand touch sensor 140 is provided on the table surface 110 behind the left hand pressure sensor 120.
  • a right hand touch sensor 150 is provided on the table surface 110 behind the right hand pressure sensor 130.
  • the table motion motor test system 100 may be provided with motorized height adjustment. The dimensions of the table motion motor test system 100 can be selected to fulfil dimensional requirements to ensure that the subject can adhere to postural protocol.
  • the dimension of the table is set to a minimum of the 5th percentile of Asian women and a maximum of slightly above the 95th percentile of the Asian male population.
  • the minimum height of the table is lower or equal to 66 cm
  • the table length is at least 130 cm
  • the table depth is at least 65 cm.
  • the left hand pressure sensor 120 and the right hand pressure sensor 130 are provided. These embedded sensors are used to measure the force exerted by the arms. The data can be analyzed to determine whether the patient had imbalance compensation.
  • the table motion motor test system 100 is provided with touch sensors which are used during time-based tasks. By accurately determining when the subject’s hands leave and return to the table surface 110, more accurate gauging and segmentation of their time required to do the test can be achieved.
  • the table motion motor test system 100 helps to enhance the data of movement assessment and generated kinetic data which are often missing in clinical tests. The data can then be used and correlate with the kinematic data from the motion capture system to enrich the information in the movement database.
  • FIG.2 shows a pressure sensor of a table motion motor test system according to an embodiment of the present invention.
  • the pressure sensor shown in FIG.2 corresponds to either the left hand pressure sensor 120 or the right hand pressure sensor 130 shown in FIG.1A and FIG.1 B.
  • the pressure sensor is formed from a flap portion 122 which is flush with the table surface 110.
  • a load cell 124 is mounted on a frame 126 which extends beneath the table surface 110. The load cell 124 is arranged in an off-center position.
  • the load cell 124 is configured to measure the force exerted by the subject’s hand when doing upper limb tasks.
  • the load cell 124 is connected to an amplifier which outputs an analogue voltage reading. This reading is sent to a data acquisition unit which may be arranged in the computer chassis 106.
  • the data acquisition unit records pressure data based on the analogue voltage in synchrony with the motion data.
  • the left hand touch sensor 140 and the right hand touch sensor 150 are capacitive touch sensors.
  • the left hand touch sensor 140 and the right hand touch sensor 150 comprise a thin conductive fabric laid over the table surface 110.
  • a microcontroller such as an chicken microcontroller is used to detect the change in capacitance when the subject touches the fabric. By monitoring the change in value from the microprocessor we can adjust the threshold of the system to provide a positive output the moment the subject touches the fabric.
  • the conductive fabric is adhered onto the tabletop to form different detection regions based on the Ability data tasks.
  • FIG.3 shows a shelf component of a table motion motor test system according to an embodiment of the present invention.
  • the shelf component 300 comprises a base frame 310 and two columns 320 which support a shelf surface 330.
  • a touch sensor 340 is provided as part of the shelf surface 330.
  • the shelf component 300 may be placed on the table surface 110 of the table motion motor test system 100 to perform certain test activities.
  • the touch sensor 340 is provided as a conductive fabric which functions as a capacitive touch sensor.
  • the shelf component 300 may be constructed based on the dimension of a standard ARAT shelf used clinically. These dimensions are as follows: length 60cm; width 11cm; height 37cm, all dimension to a tolerance of +/- 1 cm.
  • FIG.4A shows an object detection plate for use with a table motion motor test system according to an embodiment of the present invention.
  • the object detection plate 400 is used to detect an object such as an ARAT box for carrying out a grasping task.
  • the top of the object detection plate 400 has a detection surface 410 and a cover portion 420.
  • FIG.4B shows an underside view of an object detection plate for use with a table motion motor test system according to an embodiment of the present invention.
  • the underside of the object detection plate 400 is provided with a jack connector 430 and two magnets 440.
  • the jack connector 430 allows the detection surface 410 to be connected to a data acquisition unit of the table motion motor test system 100.
  • the two magnets 440 interact with magnets embedded in the top surface of the table motion motor test system 100 to ensure the correct alignment of the object detection plate 400.
  • FIG.5 shows mounting points for an object detection place on a table motion motor test system according to an embodiment of the present invention.
  • the table surface 110 is provided with a jack socket 530 and two magnets 540 are embedded in the table surface 110.
  • the jack socket 530 is configured to receive the jack connector 430 of the object detection plate 400. This allows an electrical connection between the detection surface 410 of the object detection plate 400 and the data acquisition unit of the table motion motor test system 100 to be established.
  • the magnets 540 embedded in the table surface 110 are arranged to attract respective ones of the magnets 440 arranged on the underside of the object detection plate 400.
  • the magnets 540 and the jack socket 530 fix the position and orientation of the object detection plate 400 on the table surface 110.
  • the jack socket 530 and the two magnets 540 are arranged on the table surface 110 between the left hand pressure sensor 120 and the right hand pressure sensor 130.
  • the object detection plate 400 can be attached to the table surface 110 with its detection surface 410 placed over either the left hand pressure sensor 120 or the right hand pressure sensor 130. Since the magnets 540 and the jack socket 530 fix the alignment of the object detection plate 400 relative to the table surface 110, it can be ensured that the detection surface 410 on which an object is placed is in the correct position to carry out a grasping task.
  • FIG.6A shows an exploded view of a cube object for use with an object detection plate on a table motion motor test system according to an embodiment of the present invention.
  • the cube object 600 is formed from a body portion 610 and a top portion 620 which are bolted together.
  • the cube object 600 may be formed from metal and thus the outer surfaces of the cube object 600 are electrically conductive.
  • the cube object 600 may be formed from a non-conductive material such as plastic, with a conductive coating or conductive fabric applied to the outer surfaces.
  • the cube object 600 may have the standard dimensions of an ARAT box which is a 7.5cm cube with a mass of 196g.
  • FIG.6B shows an exploded view of a cylindrical object for use with an object detection plate on a table motion motor test system according to an embodiment of the present invention.
  • the cylindrical object 650 is formed from a cylindrical body portion 660, a top end portion 670, a bottom end portion 680 and an internal frame portion 690.
  • the top end portion 670 and the bottom end portion 680 are attached to the internal frame portion 690 by bolts and the cylindrical body portion 660 is held between the top end portion 670 and the bottom end portion 680 when they are bolted to the internal frame portion 690.
  • the cylindrical object 650 may be formed from metal or formed from a non- conductive material with a conductive coating or conductive fabric applied to the outer surfaces. Thus, the outer surfaces of the cylindrical object 650 are electrically conductive.
  • the cylindrical object 650 is may be configured as an ARAT Cylindrical Object which is designed to simulate the size and weight of a canned drink.
  • the ARAT Cylindrical Object has a 7cm diameter, a 12cm height and a mass of 380g.
  • the object detection plate 400 shown in FIG.4A and FIG.4B is attached to the table surface 110 of the table motion motor test system 100 via the mounting points shown in FIG.5. Then either the cube object 600 shown in FIG.6A or the cylindrical object 650 shown in FIG.6B is placed on top of the detection surface 410 of the object detection plate 400. Since the object (either the cube object 600 or the cylindrical object 650) placed on the detection surface 410 has a conductive surface, a subject touching the object can be detected and when the object leaves the detection surface 410 can also be detected. Thus, the timing with which the subject carries out the grasping task can be detected.
  • FIG.7 is a block diagram showing data processing in a table motion motor test system according to an embodiment of the present invention.
  • the table motion motor test system comprises touch sensors 710 and load cells 720.
  • the touch sensors 710 comprise a right table touch sensor 711, a left table touch sensor 712, a right hand touch sensor 713, a left hand touch sensor 714, a shelf touch sensor 715 and a block touch sensor 716.
  • the right table touch sensor 711 and the left table touch sensor 712 may be provided in the positions of the right hand pressure sensor 130 and the left hand pressure sensor 120 respectively which are shown in FIG.1 A and FIG.1 B.
  • the right hand touch sensor 713 and the left hand touch sensor 714 may correspond to the right hand touch sensor 150 and the left hand touch sensor 140 respectively which are shown in FIG.1 A and FIG.1 B.
  • the shelf touch sensor 715 may correspond to the touch sensor 340 of the shelf component 300 shown in FIG.3.
  • the block touch sensor 716 may correspond to the detection surface 410 of the object detection plate 400 shown in FIG.4.
  • the load cells 720 comprise a right hand load cell 721 and a left hand load cell 722.
  • the right hand load cell 721 and the left hand load cell 722 may correspond to load cells coupled to the right hand pressure sensor 130 and the left hand pressure sensor 120 respectively as shown in FIG.1A and FIG.1B.
  • the touch sensors 710 are coupled to a touch sensor microcontroller 730 and the load cells 732 are coupled to a load cell amplifier 732.
  • the touch sensor microcontroller 730 and the load cell amplifier 732 are coupled to a table sensor hub 734.
  • the table sensor hub 734 is connected to a workstation sensor hub 736 by a local area network (LAN) connection.
  • the workstation sensor hub 736 is connected to a data acquisition unit (DAQ) 738 by Bayonet Neill-Concelman (BNC) connections.
  • DAQ data acquisition unit
  • BNC Bayonet Neill-Concelman
  • the output from the data acquisition unit 738 is connected to a desktop computer 740.
  • the desktop computer 740 analyses the synchronized sensor data. This analysis may be based on motion capture data from a motion capture system 750.
  • the motion capture system captures kinematic data of a subject while they complete motion motor task.
  • This kinematic data is synchronized with kinetic data (such as pressure data from the load cells and timing data from the touch sensors) to generate integrated kinematic and kinetic data 760.
  • kinetic data such as pressure data from the load cells and timing data from the touch sensors
  • the equipment can then be used in a community setting to collected data from patients without the need for a motion capture system.
  • the collected data can be analyzed to inform therapists on how the patient movement compared to a normal person movement and what the recovery status.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
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  • General Health & Medical Sciences (AREA)
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  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'invention concerne un système de test de moteur de mouvement. Le système de test de moteur de mouvement comprend : un dessus de table pourvu d'un capteur tactile et d'un capteur de pression ; et un dispositif d'acquisition de données couplé électriquement au capteur tactile et au capteur de pression et configuré pour générer des données de capteur synchronisées.
PCT/SG2022/050228 2021-04-20 2022-04-19 Système de test de moteur de mouvement de table WO2022225452A1 (fr)

Applications Claiming Priority (2)

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SG10202104024T 2021-04-20
SG10202104024T 2021-04-20

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WO2022225452A1 true WO2022225452A1 (fr) 2022-10-27

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140180172A1 (en) * 2012-12-26 2014-06-26 Tanita Corporation Stabilometer and postural stability evaluating method
US20180028777A1 (en) * 2015-02-07 2018-02-01 Pauseable Aps Method and system for relaxation and cultivation of attention
WO2018192933A1 (fr) * 2017-04-21 2018-10-25 Koninklijke Philips N.V. Table de patient sensible à la pression tactile pour imagerie tomographique
US20190199349A1 (en) * 2017-12-22 2019-06-27 Logicdata Electronic & Software Entwicklungs Gmbh Manual operating element, control system, piece of furniture and method for operating an electrically adjustable piece of furniture

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140180172A1 (en) * 2012-12-26 2014-06-26 Tanita Corporation Stabilometer and postural stability evaluating method
US20180028777A1 (en) * 2015-02-07 2018-02-01 Pauseable Aps Method and system for relaxation and cultivation of attention
WO2018192933A1 (fr) * 2017-04-21 2018-10-25 Koninklijke Philips N.V. Table de patient sensible à la pression tactile pour imagerie tomographique
US20190199349A1 (en) * 2017-12-22 2019-06-27 Logicdata Electronic & Software Entwicklungs Gmbh Manual operating element, control system, piece of furniture and method for operating an electrically adjustable piece of furniture

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LIANG PHYLLIS, KWONG WAI HANG, SIDARTA ANANDA, YAP CHOON KONG, TAN WEE KIAT, LIM LEK SYN, CHAN PUI YEE, KUAH CHRISTOPHER WEE KEONG: "An Asian-centric human movement database capturing activities of daily living", SCIENTIFIC DATA, vol. 7, no. 1, 1 December 2020 (2020-12-01), pages 290, XP093000101, DOI: 10.1038/s41597-020-00627-7 *
YOZBATIRAN NURAY, YOZBATIRAN NURAY, DER YEGHIAIAN LUCY, CRAMER STEVEN: "A Standardized Approach to Performing the Action Research Arm Test", NEUROREHABILITATION AND NEURAL REPAIR, SAGE, US, vol. 22, no. 1, 1 January 2008 (2008-01-01), US , pages 78 - 90, XP093000105, ISSN: 1545-9683, DOI: 10.1177/1545968307305353 *

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