WO2019021149A1 - Portable virtual reality system for carrying out a subjective visual vertical test - Google Patents

Portable virtual reality system for carrying out a subjective visual vertical test Download PDF

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Publication number
WO2019021149A1
WO2019021149A1 PCT/IB2018/055455 IB2018055455W WO2019021149A1 WO 2019021149 A1 WO2019021149 A1 WO 2019021149A1 IB 2018055455 W IB2018055455 W IB 2018055455W WO 2019021149 A1 WO2019021149 A1 WO 2019021149A1
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WIPO (PCT)
Prior art keywords
test
patient
virtual reality
carrying
doctor
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Application number
PCT/IB2018/055455
Other languages
French (fr)
Inventor
Vaidotas MAROZAS
Tomas BLAŽAUSKAS
Andrius PAULAUSKAS
Ingrida ULOZIENĖ
Virgilijus Ulozas
Milda TOTILIENĖ
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Kaunas University Of Technology
Lithuanian University Of Health Sciences
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Application filed by Kaunas University Of Technology, Lithuanian University Of Health Sciences filed Critical Kaunas University Of Technology
Publication of WO2019021149A1 publication Critical patent/WO2019021149A1/en

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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
    • A61B5/103—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
    • A61B5/1121—Determining geometric values, e.g. centre of rotation or angular range of movement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/12—Audiometering
    • 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
    • A61B5/68—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
    • A61B5/6802—Sensor mounted on worn items
    • A61B5/6803—Head-worn items, e.g. helmets, masks, headphones or goggles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient ; user input means
    • A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
    • A61B5/743—Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
    • A61B5/0022—Monitoring a patient using a global network, e.g. telephone networks, internet
    • 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
    • A61B5/6802—Sensor mounted on worn items
    • A61B5/681—Wristwatch-type devices
    • 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
    • A61B5/6821—Eye
    • 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
    • A61B5/6824—Arm or wrist

Definitions

  • the invention relates to the technical field of medical equipment, and in particular, a system and method for carrying out a visual vertical test.
  • the invention provides a system and method for diagnosing disorders of patients who complain of dizziness and in particular a system and method for complex assessment of cases of vestibular dysfunction.
  • the system comprises a virtual reality device, a device for tracking movements of the hand (e.g., an electronic bracelet or other manipulator) used by a patient, a doctor's device for controlling and monitoring a diagnosis session, a remote doctor's device for receiving and analysing diagnosis data.
  • the technical solution provided allows it to carry out a test without the usual dark room, the equipment is easily transported and therefore it can be used at the patient's location.
  • This system has a dynamic subjective visual vertical test option. Wireless connection is used to transfer data.
  • Document US2012218285 (published on 30 August 2012) provides methods and systems for detecting and treating vestibular disorders.
  • the system comprises a display module, a movement module, a monitoring module, and a modification module.
  • the functioning of the system is based on the interconnectedness of the displayed images and the movement of the patient's head. It is clear from the solution provided that it is not adapted to share data via the internet; there is no other option to determine the parameters of the patient's disorder than only by measuring the movement of the head.
  • a similar device, where the parameters of the patient's disorder can be determined by the movements of the head and eyes, are provided in the document US20160262608 (published on 15 September 2016).
  • Document US2012089049 (published on 12 April 2012) provides a system for carrying out a head tilt response test based on the virtual reality glasses.
  • the position of the object visible by the patient is controlled by adjusting the orientation of the head.
  • This invention provides a system where the position of a virtual three dimensional object visible on a virtual reality screen is changed by a gesture control.
  • the inertial orientation sensor placed on the glasses is used to determine the orthogonal position of the head with respect to the gravity vector of the earth.
  • This invention provides a technical solution that does not have the above deficiencies.
  • the invention provides a system and method for determining the subjective visual vertical perception.
  • the test tool is designed for doctors and/or other medical professionals from all over the world working in their practice with patients who are complaining of dizziness.
  • the system comprises a virtual reality device and a manipulator used by the patient; a doctor's smart device used by the doctor; a device used by a remote doctor to review and analyse the test results.
  • the method of diagnosis has the following basic modes: a calibration mode, a static test mode, a dynamic test mode, and a realistic scene dynamic test mode.
  • the test tool does not take up much space, it can be easily transported, a dark room is not needed in order to carry out the test, the devices used by the patient operate wirelessly, therefore, the movements of the patient are not restricted, and the test results can be transmitted via the internet.
  • Figure 1 provides a schematic view of the components of the system.
  • the presented figures are more illustrative, scale, proportions and other aspects do not necessarily correspond to a real technical solution.
  • This invention provides a system for doctors of various specialties (e. g. otorhinolaryngologists, neurologists, rehabilitation specialists, geriatricians, family doctors) and/or other medical professionals working in their practice with patients who are complaining of dizziness.
  • doctors of various specialties e. g. otorhinolaryngologists, neurologists, rehabilitation specialists, geriatricians, family doctors
  • other medical professionals working in their practice with patients who are complaining of dizziness.
  • This is a web-based system that works on the internet and provides a web page interface.
  • the system has at least the following devices:
  • system also includes a server (4), an internet network infrastructure, and the technical means for interconnecting the listed devices to exchange data.
  • the virtual reality device (1) used by the patient is a device which provides visual information prepared by a computer to the patient's eyes, usually placed, attached, mounted on the head, capable of performing other functions specific to such devices, such as measuring of the tilt and orientation of the head, environmental visual information registration, etc.
  • the function of such device (1 ) can be performed by a virtual reality helmet, special virtual reality glasses, and other smart devices that can be used in this way and have the mentioned functions.
  • the software that embodies the test method is installed in the patient's virtual reality device (1 ) (or a separate device which controls it); the process of the test method is managed and controlled by the doctor's smart device (3).
  • the virtual reality device (1 ) sends and receives data to/from the doctor's smart device (3) via a short-range wireless connection (Bluetooth, etc.).
  • the software installed in the virtual reality device (1 ) can operate in the following modes: - a calibration mode during which the patient is asked to adjust the virtual reality device (1 ) according to the instructions, so that the depicted virtual reality scenario is clearly visible;
  • a dynamic test mode during which the static test is supplemented by three dimensional spheres (or other geometric shapes) that move, i.e., rotate clockwise or counter clockwise.
  • the amount of spheres and rotational speed are selected by the doctor's smart device (3);
  • the manipulator (2) is a patient-manipulated, human-machine interface device that transmits information to the virtual reality device (1 ) and, in this way, it controls the start and end of the test and the tilt angle of the virtual object.
  • the manipulator (2) can be embodied as a smart gesture and turning angle recognition bracelet by using electromyogram and inertial (accelerometer) sensors.
  • the patient shows by hands some agreed signs (e. g., compresses the fist, shows a hand in a certain direction, etc.) which are identified by a gesture recognition software.
  • the recognized commands are sent to the patient's smart device, which controls the virtual reality device (1 ).
  • the manipulator (2) can be a mechanical-electronic device (e. g., gamepads, joysticks and/or etc. used in computer games), where the patient-manipulated part of the manipulator (2) generates an electrical signal transmitted to the virtual reality device (1 ) controlling the patient's smart device.
  • a mechanical-electronic device e. g., gamepads, joysticks and/or etc. used in computer games
  • the functions of the doctor's smart device (3) may be performed by a variety of smart devices (such as a smartphone, tablet, smartwatch, etc.) that have the technical means for ensuring communication with the Internet, the installed system software that manages the doctor's device (3) and ensures the exchange of data between the patient's device, the doctor's device (3) and the system server (4).
  • the doctor can use two smart devices, such as a smartphone and a smartwatch.
  • the software of the doctor's smart device (3) manages the software of the patient's virtual reality device (1 ).
  • the doctor's smart device (3) connects to the server (4) via the internet (https and/or other technologies), where the system software for exchanging data between devices, for storing, processing and visualizing data and generating reports is installed.
  • the server (4) is also equipped with technical means for secure login and identification of users.
  • the remote doctor's device (5) connects to the server (4) via the internet.
  • the remote doctor's device (5) is an electronic device that can connect to the internet and provide data in a web browser (such as a smartphone, tablet, computer, etc.).
  • the software has all the necessary tools for managing the users and their rights, as well as performing other administrative actions.
  • the remote doctor can monitor, analyse, process, and send the results of measuring of the patient's state.
  • This system provides detailed information on how the patient behaved during the test. This information is provided in the diagnosis report.
  • the test results include not only the fact of the choice made, but also other information related to the choice making. Using this information, one can decide whether the patient made a mistake, whether the patient was confident in choices made or, on the contrary, he guessed during the test, worked unconfidently, long hesitated before making a choice.

Abstract

The invention provides a system and method for testing the human vestibular apparatus using a subjective visual vertical perception test. The test tool is designed for doctors and/or other medical professionals from all over the world working in their practice with patients who are complaining of dizziness as well as for scientists carrying out researches on impacts on the vestibular system. The system comprises a virtual reality device and a manipulator used by the patient; a doctor's smart device used by the doctor; a server with an online user interface to review and analyse the test results by a remote doctor. The test method has the following basic modes: a calibration mode, a static test mode, a dynamic test mode, and a realistic scene dynamic test mode. The dynamic subjective vertical test has a higher diagnostic sensitivity than the static. The subjective visual vertical perception test tool is portable, it can be easily transported, a dark room is not needed in order to carry out the test, the devices used by the patient operate wirelessly, therefore, the movements of the patient are not restricted, the test results can be transmitted via the internet.

Description

PORTABLE VIRTUAL REALITY SYSTEM FOR CARRYING OUT A SUBJECTIVE
VISUAL VERTICAL TEST
FIELD OF THE INVENTION
The invention relates to the technical field of medical equipment, and in particular, a system and method for carrying out a visual vertical test.
DESCRIPTION OF THE RELATED ART
The invention provides a system and method for diagnosing disorders of patients who complain of dizziness and in particular a system and method for complex assessment of cases of vestibular dysfunction. The system comprises a virtual reality device, a device for tracking movements of the hand (e.g., an electronic bracelet or other manipulator) used by a patient, a doctor's device for controlling and monitoring a diagnosis session, a remote doctor's device for receiving and analysing diagnosis data. The technical solution provided allows it to carry out a test without the usual dark room, the equipment is easily transported and therefore it can be used at the patient's location. This system has a dynamic subjective visual vertical test option. Wireless connection is used to transfer data.
Document US2012218285 (published on 30 August 2012) provides methods and systems for detecting and treating vestibular disorders. The system comprises a display module, a movement module, a monitoring module, and a modification module. The functioning of the system is based on the interconnectedness of the displayed images and the movement of the patient's head. It is clear from the solution provided that it is not adapted to share data via the internet; there is no other option to determine the parameters of the patient's disorder than only by measuring the movement of the head. A similar device, where the parameters of the patient's disorder can be determined by the movements of the head and eyes, are provided in the document US20160262608 (published on 15 September 2016).
Document US2012089049 (published on 12 April 2012) provides a system for carrying out a head tilt response test based on the virtual reality glasses. In the system provided by the document, the position of the object visible by the patient is controlled by adjusting the orientation of the head. This invention provides a system where the position of a virtual three dimensional object visible on a virtual reality screen is changed by a gesture control. The inertial orientation sensor placed on the glasses is used to determine the orthogonal position of the head with respect to the gravity vector of the earth.
The listed solutions of the related art compared to the solution presented in this invention have the following deficiencies
- there is no dynamic visual vertical perception test option,
- the provided systems do not have a virtual realistic dynamic visual stimulus option;
- a dark room is required for carrying out the test;
- a wireless connection to transfer data is not used;
- from the results provided, nothing can be done about the patient's behavior during the test, patient's confidence in choices made.
This invention provides a technical solution that does not have the above deficiencies.
SUMMARY
The invention provides a system and method for determining the subjective visual vertical perception. The test tool is designed for doctors and/or other medical professionals from all over the world working in their practice with patients who are complaining of dizziness. The system comprises a virtual reality device and a manipulator used by the patient; a doctor's smart device used by the doctor; a device used by a remote doctor to review and analyse the test results. The method of diagnosis has the following basic modes: a calibration mode, a static test mode, a dynamic test mode, and a realistic scene dynamic test mode.
The test tool does not take up much space, it can be easily transported, a dark room is not needed in order to carry out the test, the devices used by the patient operate wirelessly, therefore, the movements of the patient are not restricted, and the test results can be transmitted via the internet.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 provides a schematic view of the components of the system. The presented figures are more illustrative, scale, proportions and other aspects do not necessarily correspond to a real technical solution.
THE PREFERRED EMBODIMENTS
This invention provides a system for doctors of various specialties (e. g. otorhinolaryngologists, neurologists, rehabilitation specialists, geriatricians, family doctors) and/or other medical professionals working in their practice with patients who are complaining of dizziness. This is a web-based system that works on the internet and provides a web page interface. The system has at least the following devices:
Used by the patient:
- a virtual reality device (1 );
- a manipulator (2);
Used by the doctor:
- a doctor's smart device (3);
Used by the remote doctor:
- a device for reviewing and analysing the test results (5).
In addition to the devices listed above, the system also includes a server (4), an internet network infrastructure, and the technical means for interconnecting the listed devices to exchange data.
The virtual reality device (1) (Fig. 1) used by the patient is a device which provides visual information prepared by a computer to the patient's eyes, usually placed, attached, mounted on the head, capable of performing other functions specific to such devices, such as measuring of the tilt and orientation of the head, environmental visual information registration, etc. The function of such device (1 ) can be performed by a virtual reality helmet, special virtual reality glasses, and other smart devices that can be used in this way and have the mentioned functions. The software that embodies the test method is installed in the patient's virtual reality device (1 ) (or a separate device which controls it); the process of the test method is managed and controlled by the doctor's smart device (3). The virtual reality device (1 ) sends and receives data to/from the doctor's smart device (3) via a short-range wireless connection (Bluetooth, etc.). In the present invention, the software installed in the virtual reality device (1 ) can operate in the following modes: - a calibration mode during which the patient is asked to adjust the virtual reality device (1 ) according to the instructions, so that the depicted virtual reality scenario is clearly visible;
- a static test mode, during which the patient is needed to put the arrow in a vertical position using the manipulator. During this test, the means which allow the test to be started only if the position of the patient's head is appropriate are implemented;
- a dynamic test mode, during which the static test is supplemented by three dimensional spheres (or other geometric shapes) that move, i.e., rotate clockwise or counter clockwise. The amount of spheres and rotational speed are selected by the doctor's smart device (3);
- a realistic scene dynamic test mode during which the patient is shown a real- life scene, for example, a scene where waves swing a ship, this way, the patient sees a changing horizon and does not have an exact point of reference for determining the vertical.
Another device used by the patient is the manipulator (2). In the present invention, the manipulator (2) is a patient-manipulated, human-machine interface device that transmits information to the virtual reality device (1 ) and, in this way, it controls the start and end of the test and the tilt angle of the virtual object. The manipulator (2) can be embodied as a smart gesture and turning angle recognition bracelet by using electromyogram and inertial (accelerometer) sensors. In the first case, the patient shows by hands some agreed signs (e. g., compresses the fist, shows a hand in a certain direction, etc.) which are identified by a gesture recognition software. The recognized commands are sent to the patient's smart device, which controls the virtual reality device (1 ). In the second case of embodiment, the manipulator (2) can be a mechanical-electronic device (e. g., gamepads, joysticks and/or etc. used in computer games), where the patient-manipulated part of the manipulator (2) generates an electrical signal transmitted to the virtual reality device (1 ) controlling the patient's smart device.
The functions of the doctor's smart device (3) may be performed by a variety of smart devices (such as a smartphone, tablet, smartwatch, etc.) that have the technical means for ensuring communication with the Internet, the installed system software that manages the doctor's device (3) and ensures the exchange of data between the patient's device, the doctor's device (3) and the system server (4). In other embodiments, the doctor can use two smart devices, such as a smartphone and a smartwatch. The software of the doctor's smart device (3) manages the software of the patient's virtual reality device (1 ).
The doctor's smart device (3) connects to the server (4) via the internet (https and/or other technologies), where the system software for exchanging data between devices, for storing, processing and visualizing data and generating reports is installed. The server (4) is also equipped with technical means for secure login and identification of users.
The remote doctor's device (5) connects to the server (4) via the internet. The remote doctor's device (5) is an electronic device that can connect to the internet and provide data in a web browser (such as a smartphone, tablet, computer, etc.). The software has all the necessary tools for managing the users and their rights, as well as performing other administrative actions. The remote doctor can monitor, analyse, process, and send the results of measuring of the patient's state.
This system provides detailed information on how the patient behaved during the test. This information is provided in the diagnosis report. The test results include not only the fact of the choice made, but also other information related to the choice making. Using this information, one can decide whether the patient made a mistake, whether the patient was confident in choices made or, on the contrary, he guessed during the test, worked unconfidently, long hesitated before making a choice.
In order to illustrate and describe the invention, the description of the preferred embodiments is presented above. This is not a detailed or restrictive description to determine the exact form or embodiment. The above description should be viewed more than the illustration, not as a restriction. It is obvious that specialists in this field can have many modifications and variations. The embodiment is chosen and described in order to best understand the principles of the present invention and their best practical application for the various embodiments with different modifications suitable for a specific use or implementation adaptation. It is intended that the scope of the invention is defined by the definition added to it and its equivalents, in which all of these definitions have meaning within the broadest limits, unless otherwise stated.
In the embodiments described by those skilled in the art, modifications may be made without deviating from the scope of this invention as defined in the following definition.

Claims

1 . A mobile virtual reality system for carrying out a subjective visual vertical perception test has at least the following components
a virtual reality device (1 ) for displaying virtual images to a patient;
a doctor's smart device (3) for monitoring and controlling the test results of the patient,
characterized in that it has
a manipulator (2) for controlling the functions performed by the virtual reality device with hand movements,
a server (4) for exchanging data between devices, for storing, processing and visualizing data and generating reports,
a remote doctor's device (5) for monitoring, analysing and storing the results of a subjective visual vertical perception test.
2. The system for carrying out a subjective visual vertical perception test according to claim 1 , characterized in that the manipulator (2) is a smart gesture and tilt angle registration bracelet or mechanical-electronic device, such as gamepads, joysticks and/or etc. used in computer games, where a patient-manipulated part of the manipulator (2) transmits commands and turning angles to a patient's smart device which controls the virtual reality device (1 ).
3. The system for carrying out a subjective visual vertical perception test according claim 1 , characterized in that the doctor's smart device (3) connects to the internet to exchange the test results and other data with the server (4).
4. The system for carrying out a subjective visual vertical perception test according to claim 1 , characterized in that the virtual reality device (1 ) sends and receives data to/from the doctor's smart device (3) via a short-range wireless connection (Bluetooth, etc.).
5. A method for carrying out a subjective visual vertical perception test having a static test mode,
characterized in that it has a dynamic test mode, during which the static test is supplemented by three- dimensional spheres (or other geometric shapes) that move, rotate clockwise or counter clockwise, the amount of spheres, rotational speed are selected by the doctor's smart device (3).
6. The method for carrying out a subjective visual vertical perception test according to claim 5, characterized in that it has a calibration mode during which the patient is asked to adjust the virtual reality device (1 ) according to the instructions, so that the depicted virtual reality scenario is clearly visible to patients with different visual acuity.
7. The method for carrying out a subjective visual vertical perception test according to claim 5, characterized in that it has a real-image test mode during which the patient is shown a real-life scene, for example, a scene where waves swing a ship, this way, the patient sees a changing horizon and does not have an exact point of reference for determining the vertical.
8. The method for carrying out a subjective visual vertical perception test according to claim 5, characterized in that from the results provided, it is possible to get detailed information on how the patient behaved during the test, whether the patient made a mistake, whether the patient was confident in choices made, etc.
PCT/IB2018/055455 2017-07-27 2018-07-23 Portable virtual reality system for carrying out a subjective visual vertical test WO2019021149A1 (en)

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CN114668948A (en) * 2022-03-24 2022-06-28 江苏省人民医院（南京医科大学第一附属医院） Integrated vertical perception training instrument

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CN114668640A (en) * 2022-03-24 2022-06-28 江苏省人民医院（南京医科大学第一附属医院） Integrated subjective visual vertical perception rehabilitation training instrument
CN114668948A (en) * 2022-03-24 2022-06-28 江苏省人民医院（南京医科大学第一附属医院） Integrated vertical perception training instrument
CN114668640B (en) * 2022-03-24 2023-08-18 江苏省人民医院（南京医科大学第一附属医院） Integrated subjective visual vertical perception rehabilitation training instrument
CN114632318A (en) * 2022-04-06 2022-06-17 江苏省人民医院（南京医科大学第一附属医院） Subjective visual vertical perception rehabilitation evaluation and training system

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