KR20220071421A - Apparatus and method for measuring range of motion - Google Patents

Abstract

A joint motion range measuring device includes: a first sensor attached adjacent to a joint to be measured; a second sensor attached to one side of the first sensor; a third sensor attached to the other side of the first sensor; and a processor receiving location information or displacement information of the first sensor, the second sensor, and the third sensor, and measuring or calculating at least one of the absolute positions, relative positions, displacements, and movement paths of the first sensor, the second sensor, and the third sensor.

Description

Apparatus and method for measuring joint range of motion {APPARATUS AND METHOD FOR MEASURING RANGE OF MOTION}

The present invention relates to an apparatus and method for measuring the range of motion of a joint.

The joint range of motion refers to the range of motion of a joint measured when moving a movable part of the human body, and the maximum angle is expressed according to each motion direction. If the joint's range of motion is reduced from the physiological range of motion, it is said to have limited range of motion, and if it greatly exceeds the normal range, it is called a sway joint.

In general, the range of motion has an active joint range in which the subject moves the joint and a passive joint range in which another person moves the subject's joint. In many cases, they are able to move freely.

By measuring the active or passive range of motion of each joint, it is possible to clarify the joint with a limited range of motion, and furthermore, to know how much the limitation of the joint range of motion is involved in performance disorders such as walking and other activities of daily living. In addition, through this, it is possible to set an appropriate treatment program or to estimate a functional prognosis, and it is also possible to determine the treatment effect by repeatedly measuring it.

The range of motion of the joint is measured using a goniometer or an arthrometer. When measuring the range of motion of a joint using such a device, the measurer must measure the range of motion of the subject, and in the case of passive range of motion, an assistant is also required. In addition, the measured value is not accurate, and there is an inconvenience of having to separately describe the measured value.

An object of the present invention is to provide an apparatus and method for measuring the range of motion of a joint that a subject directly attaches, mounts, or wears and can measure the range of motion of a joint even in the absence of a measurer. In this case, the joint includes a shoulder joint, an elbow joint, a wrist joint, a finger joint, a hip joint, a knee joint, an ankle joint, a toe joint, and a spinal segment.

An object of the present invention is to provide an apparatus and method for measuring the range of motion of a joint that can more accurately measure the range of motion of the joint.

An object of the present invention is to provide an apparatus and method for measuring the range of motion of a joint, which can compare and display the measured value of the joint's range of motion with the normal range, store the measured value, and compare and display the measured value with the previous measured value.

Joint motion range measuring device according to the spirit of the present invention, a first sensor attached adjacent to the joint to be measured, a second sensor attached to one side of the first sensor, attached to the other side of the first sensor a third sensor, and receiving position information or displacement information of the first sensor, the second sensor, and the third sensor to determine the absolute position, relative position of the first sensor, the second sensor, and the third sensor; It may include a processor for measuring or calculating at least one of displacement and movement path.

The joint motion range measuring device may further include a first warning device installed adjacent to the first sensor. The processor may generate a warning in the first warning device when the position of the first sensor is out of the allowed movement range during joint motion range measurement.

The joint motion range measuring device may further include a second warning device installed adjacent to the second sensor. The processor may generate a warning in the second warning device when the position of the second sensor is out of the permitted movement path range during measurement of the joint motion range.

The joint motion range measuring device may further include a third warning device installed adjacent to the third sensor. The processor may generate a warning in the third warning device when the position of the third sensor is out of the permitted movement range during measurement of the joint motion range.

The joint motion range measurement device may further include a reference sensor that is fixed to an arbitrary position, and is a reference for the position of the first sensor, the second sensor, and the third sensor. The processor may measure or calculate at least one of an absolute position, a relative position, a displacement, and a movement path of the first sensor, the second sensor, and the third sensor based on the position of the reference sensor.

The processor provides a selection menu for the joint and joint motion to be measured, guides the attachment positions of the first sensor, the second sensor, and the third sensor, and receives the joint motion range measurement start and end signals, It can include applications that output measurements, comparisons to normal ranges, or comparisons to previous measurements.

The joint motion range measuring apparatus according to the spirit of the present invention includes a first sensor and a first transceiver, and includes a first detachable device, a second sensor and a second transceiver mounted adjacent to the joint to be measured, and the A third detachable device including a second detachable device mounted on one side of the first detachable device, a third sensor and a third transceiver, and a third detachable device mounted on the other side of the first detachable device, and the first sensor, the A second sensor and a fourth transceiver for receiving the location information of the third sensor, the first sensor, a processor for measuring the range of motion of the joint based on the location information of the second sensor and the third sensor, and the calculated joint It may include a terminal including a display device for displaying the movable range of.

The first detachable device may further include a first warning device for generating a sound or vibration when the position of the first sensor is out of the allowed movement range during joint motion range measurement. The second detachable device may further include a second warning device for generating a sound or vibration when the position of the second sensor is out of the allowed movement path range during joint motion range measurement. The third detachable device may further include a third warning device for generating a sound or vibration when the position of the third sensor is out of the permitted movement range during joint motion range measurement.

The terminal may further include a reference sensor serving as a reference for positions of the first sensor, the second sensor, and the third sensor. The processor may measure or calculate at least one of an absolute position, a relative position, a displacement, and a movement path of the first sensor, the second sensor, and the third sensor based on the position of the reference sensor.

The joint motion range measurement method according to the spirit of the present invention comprises the steps of selecting a measurement target joint and joint motion, a first sensor attached to the measurement target joint, a second sensor attached to one side of the first sensor, Receiving position information measured by a third sensor attached to the other side of the first sensor, setting reference positions of the first sensor, the second sensor, and the third sensor, the first It may include receiving the position movement information of the sensor, the second sensor and the third sensor to measure the range of motion of the joint, and outputting the measured range of motion.

The step of setting the reference position includes receiving the stop positions of the first sensor, the second sensor and the third sensor, and the first sensor, the second sensor and the third sensor according to the selected joint motion. predicting a movement range or direction of requesting, and receiving modified rest positions of the first sensor, the second sensor and the third sensor.

The step of measuring the movable range of the joint includes the steps of setting an allowable movement range or an allowable movement path range of the first sensor, the second sensor, and the third sensor according to the selected joint motion, and the first sensor, The method may include terminating the measurement when the position movement of the second sensor and the third sensor is out of a predicted movement range or a movement path range.

The step of measuring the movable range of the joint includes setting the allowable movement range of the first sensor and the second sensor and the allowable movement path range of the third sensor according to the selected joint motion, the first sensor and the generating a warning and requesting re-measurement when the position of the third sensor is out of the allowed movement range, generating a warning and terminating the measurement when the position of the second sensor is out of the allowed movement path range can do.

Outputting the measured movable range may include comparing the measured movable range with a normal movable range, and comparing the measured movable range with a previously measured and stored movable range.

The computer-readable recording medium according to the spirit of the present invention may include a computer program including instructions for causing the processor to perform the joint motion range measurement method according to the spirit of the present invention.

The joint motion range measuring apparatus and method according to an embodiment of the present invention can measure the range of motion of the joint by directly attaching, mounting, or wearing the subject even when there is no measurer.

The apparatus and method for measuring the range of motion of a joint according to an embodiment of the present invention can measure the range of motion of a joint more accurately.

The joint motion range measuring apparatus and method according to an embodiment of the present invention may display the measured value of the joint motion range compared to the normal range, store the measured value, and compare and display the measured value with the previous measured value.

1 is a view showing an apparatus for measuring the range of motion of a joint according to an embodiment of the present invention;
2 is a flowchart showing a method for measuring a joint range of motion according to an embodiment of the present invention;
3 is a flowchart showing a process in the sensor reference position setting step shown in FIG. 2;
4 is a flowchart showing a process according to an embodiment in the step of receiving position movement information and measuring the joint motion range of the sensor shown in FIG. 2;
5 is a flowchart showing a process according to another embodiment in the step of receiving position movement information and measuring the joint motion range of the sensor shown in FIG. 2;
6 is a flowchart showing a process in the step of outputting the measured joint range of motion shown in FIG. 2 ;
7 is an exemplary view for measuring the range of motion of the flexion and extension motion of the shoulder joint using the joint motion range measuring device according to an embodiment of the present invention;
8 is an exemplary view for measuring the range of motion of abduction and adduction motion of the shoulder joint using the joint motion range measuring device according to an embodiment of the present invention;
9 is an exemplary view for measuring the movable range of the horizontal external rotation movement and the horizontal internal rotation movement of the shoulder joint using the joint movement range measurement device according to an embodiment of the present invention;
10 is an exemplary view for measuring the movable range of the vertical external rotation movement and the vertical internal rotation movement of the shoulder joint using the joint movement range measurement device according to an embodiment of the present invention;
11 is an exemplary view for measuring the range of motion of the horizontal abduction motion and horizontal adduction motion of the shoulder joint using the joint motion range measuring device according to an embodiment of the present invention.

The configuration shown in the embodiments and drawings described in this specification is only a preferred example of the disclosed invention, and there may be various modifications that can replace the embodiments and drawings of the present specification at the time of filing of the present application.

The same reference numbers or reference numerals in each drawing in this specification indicate parts or components that perform substantially the same functions. The shapes and sizes of elements in the drawings may be exaggerated for a clear description.

The terminology used herein is used to describe the embodiments, and is not intended to limit and/or limit the disclosed invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

As used herein, terms including ordinal numbers such as “first”, “second”, etc. may be used to describe various components, but the components are not limited by the terms, and the terms are It is used only for the purpose of distinguishing a component from other components. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing an apparatus for measuring a joint range of motion according to an embodiment of the present invention.

Referring to FIG. 1 , an apparatus for measuring a joint range of motion according to an embodiment of the present invention may include at least one detachable device 100 and a terminal 200 . The detachable device 100 may include a sensor 110 capable of detecting a position or displacement, and a transceiver 120 capable of transmitting information detected by the sensor 110 to the terminal 200 .

The sensor 110 may include a rotary potentiometer capable of detecting rotational displacement of an object. The sensor 110 may include an inertial measurement unit (IMU) capable of sensing the moving speed, direction, gravity, acceleration, and the like of an object. The inertial measurement unit (IMU) may include a gyroscope for measuring rotational inertia, an accelerometer for measuring movement inertia, and a geomagnetic sensor for measuring an azimuth.

The detachable device 100 may be formed as a wearable device so as to be mounted at a predetermined position of the human body to measure the range of motion of the joint to be measured. For example, the detachable device 100 may be formed in the form of a patch or band to be mounted on the central axis of the joint. On the other hand, two or more detachable devices 100 may be mounted on one piece of clothing or one belt so that a measurement target can wear several detachable devices 100 at once.

The terminal 200 may include a transceiver 120 capable of receiving location information or displacement information from at least one detachable device 100 . The terminal 200 measures at least one of an absolute position, a relative position, a displacement, and a movement path of each sensor 110 based on the position information or displacement information of the sensor 110 received from the at least one detachable device 100 . Or it may include a processor 210 that calculates and measures the range of motion of the joint. The terminal 200 may include a display device 240 for displaying the movable range of the joint calculated by the processor 210 .

The detachable device 100 may be connected to and communicate with the terminal 200 wirelessly or by wire. For example, the transceiver 120 mounted on the detachable device 100 and the terminal 200 is electrically connected to each other, or transmits and receives a radio frequency (RF), or Bluetooth (Bluetooth), a RF ID (Radio- At least one of Frequency Identification (RFID), Near Field Communication (NFC), ZigBee, Infrared communication, and Wi-Fi may be used for communication.

The user may measure the movable range of the joint by mounting at least one detachable device 100 at a position adjacent to the joint to be measured. The user can measure the range of motion of the joint by attaching one detachable device 100 adjacent to the joint to be measured, and attaching two detachable devices 100 adjacent to the joint to measure the range of motion of the joint can be measured.

For example, the user can measure the range of motion by mounting the detachable device 100 on the forearm (lower arm) in order to measure the range of flexion motion of the elbow joint (elbow) and bending the forearm in a state where the elbow joint is fixed. The detachable device 100 may transmit the rotation angle of the forearm detected through the sensor 110 to the terminal 200 through the transceiver 120 .

On the other hand, the user can measure the range of motion by bending the forearm by mounting the first detachable device 101 on the forearm and the second detachable device 102 on the upper arm. The first sensor 110 of the first detachable device 101 may detect the rotation angle of the forearm, and the second sensor 110 of the second detachable device 102 may detect the rotation angle of the upper arm. The terminal 200 may receive the rotational displacement of the first sensor 110 and the rotational displacement of the second sensor 110 , and may calculate the flexion movable range of the elbow joint through the processor 210 .

The user may measure the range of motion of the joint by attaching the three detachable devices 100 adjacent to the joint to be measured. The first detachable device 101 is mounted adjacent to the joint to be measured, and the second detachable device 102 and the third detachable device 103 are mounted on one side and the other side of the first detachable device 101 . Thus, the range of motion of the joint can be measured. More precisely, in the case of measuring the movable angle of the joint by using a goniometer, the user first sensor of the first attaching and detaching device 101 at a position corresponding to the position where the axis of the goniometer, the stator and the mover are arranged ( 110 ), the second sensor 110 of the second attachment and detachment device 102 , and the third sensor 110 of the third attachment and detachment device 103 , the first attachment and detachment device 101 , the second attachment and detachment device 102 . ) and a third detachable device 103 can be mounted.

For example, the user mounts the first detachable device 101 on the elbow joint, the second detachable device 102 on the upper arm, and the third detachable device 103 on the forearm to bend the forearm to move the elbow joint. range can be measured. More precisely, the user mounts the first detachable device 101 so that the first sensor 110 is positioned at the periphery, and the second detachable device 102 so that the second sensor 110 is positioned at the center line of the humerus. The third sensor 110 may be mounted on the third detachable device 103 so as to be located at the center line of the radius.

The first sensor 110 of the first detachable device 101, the second sensor 110 of the second detachable device 102, and the third sensor 110 of the third detachable device 103 are each Displacement information can be detected. The terminal 200 receives the position information or displacement information of the first sensor 110 , the second sensor 110 , and the third sensor 110 , and through the processor 210 , the first sensor 110 , the second sensor (110) and the third sensor 110 by calculating the motion start position, motion end position, motion direction, motion path, and the like, it is possible to measure the range of motion of the elbow joint flexion.

The detachable device 100 may include a warning device 130 that generates a warning when the position of the sensor 110 is out of the permitted movement range or the permitted movement path range during joint motion range measurement. The warning device 130 may include a speaker capable of generating a warning by sound or a motor capable of generating a warning by vibration.

The first sensor 110 disposed on the axis of the joint to be measured and the second sensor 110 disposed at a position that should be fixed during the movement of the joint should not deviate from the range determined during the measurement of the movable range of the joint. Therefore, when the first sensor 110 and the second sensor 110 are out of a certain range during the joint movement, a warning is issued by sound or vibration through the warning device 130 disposed at an adjacent position, and the user can warn such a warning Accordingly, the joint movable range may be measured again so that the first sensor 110 and the second sensor 110 do not deviate from the permitted movement range.

On the other hand, the third sensor 110 disposed at a position to be moved according to the motion of the joint to be measured must not deviate from a movement direction or movement path within a predetermined range or a predicted range. Therefore, when the third sensor 110 deviates from a certain range during joint movement, a warning is given by sound or vibration through the warning device 130 disposed at an adjacent position, and the user according to this warning, the third sensor 110 ) can be measured again so that the range of motion of the joint does not deviate from the permitted travel path range.

In addition, if the position or movement path of the third sensor 110 moving according to the movement of the joint to be measured is out of a predetermined or predicted range, it may be determined that the end point of the joint movement has passed. Therefore, when the third sensor 110 deviates from a certain range during joint movement, a warning is given by sound or vibration through the warning device 130 disposed at an adjacent position, and the user according to this warning, the joint movable range Measurement can be terminated.

The joint motion range measuring apparatus according to an embodiment of the present invention may further include a reference sensor 220 for setting a standard of the sensor 110 installed in the detachable device 100 . The reference sensor 220 may be installed to be fixed at an arbitrary place so as to be a reference of the position of the sensor 110 included in the detachable device 100 . The reference sensor 220 may be installed in a separate device to fix the separate device at a predetermined position, or may be installed in the terminal 200 to fix the terminal 200 to a predetermined position and used.

The processor 210 of the terminal 200 measures or calculates at least one of an absolute position, a relative position, a displacement, and a movement path of the sensor 110 installed in the detachable device 100 based on the position of the reference sensor 220 . can For example, the reference sensor 220 forms a three-dimensional space together with the three sensors 110 included in the three attachment and detachment devices 100 to form an absolute position or reference of the sensors 110 included in the attachment and detachment device 100 . You can set the location.

The terminal 200 may include a storage device 230 capable of storing measurement values for each user. The storage device 230 may include a normal range value of each joint motion. The processor 210 compares the measured value with the normal range stored in the storage device 230 to calculate the degree of restriction of joint motion, or compares the measured value with a previous measured value stored in the storage device 230 to improve the degree of joint motion can be calculated.

The processor 210 may include a user interface for measuring the joint range of motion and an application for outputting the measurement result. The application may receive an input from the user by providing a selection menu for the joint and joint motion to be measured, and guide the mounting position of the detachable device 100 or the mounting position of the sensor. The application may receive a measurement start and end signals of the joint motion range from the user or the detachable device 100. The application can output a measurement of the joint's range of motion, a comparison to a normal range, or a comparison to a previous measurement.

The terminal 200 may match the information received from the detachable device 100 to the information reception date and store it in the storage device 230 . In other words, the terminal 200 may receive information about the measurement value of the measurement target joint type and the movable range of the measurement target joint from the detachable device 100, sorting the measurement value by information reception date, It may be stored in the storage device 230 . For example, the terminal 200 may receive the first joint movement range measurement value and the second joint movement range measurement value and store the information by matching each information to the corresponding information reception date. In this case, the terminal 200 may display the increase/decrease state through the display device 240 by comparing the first joint movement range measurement value and the second joint movement range measurement value. By matching the received information to the information reception date and storing it in the storage device 230 , the terminal 200 can provide the measurement target with the change trend of the joint motion range measurement value.

The terminal 200 may receive and store the user information of the measurement target. Here, the user information may include the age and gender of the measurement target. The user information may correspond to user information about a plurality of people. For example, the terminal 200 may receive first user information and second user information. When the measurement target selects the first user information and then drives the joint motion range measurement device, the information received from the detachable device 100 may be stored in the storage device 230 to match the first user information, and the measurement target When the joint motion range measurement device is operated after selecting the second user information, the information received from the detachable device 100 may be matched with the second user information and stored in the storage device 230 . The terminal 200 may provide the selected user information and information matched thereto to the user through the display device 240 .

The terminal 200 may calculate an appropriate joint motion range based on the measurement target joint and the selected user information. Here, the appropriate range of motion of the joint may mean an appropriate range of motion of the joint to be measured based on the corresponding age and gender. The terminal 200 may determine whether the measurement value received from the attachment/detachment device 100 is included in an appropriate range of the joint motion range and display the result value.

Figure 2 is a flow chart showing a joint motion range measurement method according to an embodiment of the present invention, Figure 3 is a flow chart showing the process in the sensor reference position setting step shown in Figure 2, Figure 4 is the sensor shown in Figure 2 A flowchart showing a process according to an embodiment in the step of receiving position movement information and measuring the joint range of motion, FIG. 5 is a process according to another embodiment in the step of receiving the position movement information of the sensor shown in FIG. 2 and measuring the joint range of motion FIG. 6 is a flowchart showing a process in the step of outputting the measured joint motion range shown in FIG. 2 .

Referring to Figure 2, the joint motion range measurement method according to an embodiment of the present invention is a measurement target joint and joint motion selection step (S310), the selected joint motion demonstration and sensor attachment location guidance step (S320), sensor location information reception It may include a step (S330), a sensor reference position setting step (S340), a sensor position movement information reception and joint motion range measurement step (S350), and a measured joint motion range output step (S360).

In the measurement target joint and joint motion selection step (S310), when the user selects the measurement target joint and joint motion through an application, a computer program, or the like, the processor may receive the selection signal.

In the demonstration of the selected joint motion and the sensor attachment position guidance step (S320), the processor outputs a demonstration of a method of measuring the motion and range of motion of the selected joint according to the selection signal of the joint motion, and attaching a sensor for measuring the selected joint motion We can guide you about the location.

When the user attaches the first sensor adjacent to the measurement target joint according to the guidance, attaches the second sensor to one side of the first sensor, and attaches the third sensor to the other side of the first sensor, sensor location information In the receiving step (S330), the processor may receive location information measured by the first sensor, the second sensor, and the third sensor.

In the sensor reference position setting step ( S340 ), the processor may receive the stop positions of the first sensor, the second sensor, and the third sensor to set the reference position. In the sensor position movement information reception and joint motion range measurement step (S350), the processor receives the position movement information of the first sensor, the second sensor, and the third sensor to measure the range of motion of the joint to be measured based on it have. In the step of outputting the measured joint range of motion (S360), the processor may output the measured range of motion to a display device or the like.

Referring to FIG. 3 , the sensor reference position setting step (S340) includes a stop position receiving step of the sensor (S341), a moving range or moving direction prediction step of the sensor (S342), a sensor position movement information receiving step (S343), movement Determining whether the range or direction of movement is deviating (S344), generating a warning in the warning device adjacent to the sensor deviating from the range or direction of movement and requesting correction of the sensor attachment position (S345), receiving the corrected stop position of the sensor ( S346), and a reference position determination step of the sensor (S347).

The processor receives the positions at which the first sensor, the second sensor and the third sensor attached by the user in the stopping position receiving step of the sensor (S341) are stopped, and the user in the moving range or moving direction prediction step (S342) of the sensor The movement range or direction of the first sensor, the second sensor, and the third sensor may be predicted according to the joint motion selected by .

In the sensor position movement information receiving step (S343), the user performs the joint movement at the stop position of the joint movement, and the processor may receive the position information or displacement information of the first sensor, the second sensor, and the third sensor. .

In the step (S344) of determining whether the movement range or movement direction is deviated, the processor measures the position, direction, or time at which the first sensor, the second sensor, and the third sensor deviate from the predicted movement range or movement direction to obtain the first It may be determined whether the sensor, the second sensor, and the third sensor are attached to the correct positions.

If any of the first sensor, the second sensor, and the third sensor deviate from the predicted movement range or movement direction, the processor generates an alert in a warning device adjacent to the sensor deviating from the movement range or movement direction, and a sensor attachment position A correction request step (S345) may be performed.

After the user attaches the sensor attached to the wrong position to the correct position, the processor receives the corrected stop position of the first sensor, the second sensor, and the third sensor in the corrected stop position receiving step of the sensor ( S346 ) Then, the step (S343) of receiving the position movement information of the sensor and the step (S344) of determining whether the movement range or the movement direction is deviated may be performed again.

If the movement range or movement direction does not deviate from the movement range or movement direction predicted in the joint motion for which all the sensors are selected in the movement range or movement direction deviation determination step (S344) for a certain period of time or within a certain range, the processor in the sensor's reference position determination step (S347) A stop position of the sensor may be determined as a reference position.

Referring to FIG. 4 , the sensor position movement information reception and joint motion range measurement step (S350) includes the sensor allowable movement range or allowable movement path range setting step (S351), the sensor position movement information reception step (S352), and If it is deviating from the movement range or the movement path range, a measurement end step (S353) may be included.

In the step of setting the allowable movement range or allowable movement path range of the sensor ( S351 ), the processor may set the allowable movement range or the allowable movement path range of the first sensor, the second sensor, and the third sensor according to the selected joint motion. The processor receives the position information of the first sensor, the second sensor, and the third sensor in the sensor position movement information receiving step (S352), and the first sensor, the second sensor and the third sensor in the measurement end step (S353) If the position of is out of the movement range or movement path range, the measurement can be terminated.

On the other hand, referring to Figure 5, the position movement information reception and joint movement range measurement step (S350) of the sensor shown in the joint movement range measurement method according to another embodiment of the present invention is the allowable movement range of the center sensor and the fixed sensor and Setting the allowable movement path range of the movement sensor (S451), receiving the position movement information of the sensor (S452), determining whether the center sensor or the fixed sensor deviates from the allowable movement range (S453), the sensor deviating from the allowable movement range In the warning device adjacent to the warning step (S454), re-measurement request step (S455) from the reference position, if the movement sensor deviates from the allowable movement path range, the warning device adjacent to the movement sensor generates a warning step (S456), and joint movement It may include a range measurement end step (S457).

In the step of setting the allowable movement range of the center sensor and the fixed sensor and the allowable movement path range of the movement sensor ( S451 ), the processor sets the allowable movement range of the first sensor and the second sensor and the allowable movement of the third sensor according to the selected joint motion. You can set the path range.

The first sensor is disposed on the axis of the joint and called a center sensor, the second sensor is disposed at a position that does not move during joint motion and is called a fixed sensor, and the third sensor is disposed at a location that moves during joint motion and moves It can be called a sensor. Since the center sensor and the fixed sensor should not move during the joint movement, they should stay within the allowable movement range during the joint movement. Since the movement sensor must move in the correct direction, it must move without departing from the permitted movement path range.

The processor receives the position movement information of the center sensor, the fixed sensor, and the movement sensor (S452), and determines whether the center sensor or the fixed sensor is out of the allowable movement range (S453), and the center sensor or the fixed sensor moves the allowable movement (S453) When it deviated from the range, a warning device adjacent to the sensor deviating from the allowable movement range may generate a warning (S454), and request to measure the joint motion again from the reference position (S455).

The processor receives the position movement information of the center sensor, the fixed sensor, and the movement sensor (S452), and determines whether the center sensor or the fixed sensor is out of the allowable movement range (S453), and the center sensor or the fixed sensor moves the allowable movement (S453) If it does not deviate from the range, when the movement sensor deviates from the allowable movement path range, a warning device adjacent to the movement sensor may generate a warning (S456) and end the joint movement range measurement (S457).

Referring to FIG. 6 , the step of outputting the measured joint motion range (S360) is a step of comparing the measured movable range with the normal movable range (S361) and the step of comparing the measured movable range with the previously measured and stored movable range ( S362) may be included.

The processor may calculate and output the limited degree of the user's joint motion by comparing the measured motion range with the normal motion range stored in the storage device by calculating based on the location information or displacement information of the sensors (S361), and By comparing the movable range with the previous measurement value stored in the storage device (S362), the degree of improvement in joint motion may be calculated and output.

The present invention may include a computer-readable recording medium in which a computer program including instructions for causing the processor to perform the joint motion range measurement method described above is recorded.

Hereinafter, measurement of the range of motion of the shoulder joint (shoulder joint) will be described as an example with respect to a method for measuring the range of motion of a joint using the device for measuring range of motion of a joint according to an embodiment of the present invention.

7 is an exemplary view for measuring the range of motion of the flexion and extension motion of the shoulder joint using the joint motion range measuring device according to an embodiment of the present invention.

Referring to FIG. 7 , the flexion motion (flexion) of the shoulder joint refers to a motion to lift the arm forward, and the extension motion (extension) refers to a motion to lift the arm toward the rear.

The user selects the shoulder joint as the joint to be measured through the application of the terminal and selects the flexion or extension movement as the joint movement. The user attaches the first detachable device 101 so that the first sensor coincides with the axis of the acromion according to the joint motion demonstration and sensor attachment position guidance appearing in the application, and attaches the second detachable device 102 to the second sensor acromion It is attached to coincide with a vertical line passing through, and the third detachable device 103 is attached so that the third sensor coincides with the center line of the humerus.

The user performs flexion or extension movement from the stop position (0), and the processor of the terminal receives the position movement information of each sensor to determine whether the user has placed each sensor at the correct position for measuring the flexion or extension movement of the shoulder joint. judge If the user does not place the sensors in the correct position, a warning is generated from the warning device of the detachable device including the sensor not arranged in the correct position, and the user corrects the sensor position of the detachable device in which the warning is generated. When all the sensors are placed in the correct positions for measuring the flexion and extension movements of the shoulder joint, the processor sets this position as the reference position (0).

When measuring the flexion or extension of the shoulder joint, the trunk (body) should be fixed so that it does not move, and the spine should not be forward or backward. Therefore, when measuring the flexion or extension motion of the shoulder joint, the first sensor and the second sensor must not deviate from a certain range, and the third sensor must move forward or backward.

The processor sets the allowable movement range of the first sensor and the second sensor and the allowable movement path range of the third sensor, so that when the user performs flexion or extension of the shoulder joint, the first sensor and the second sensor are within the allowable movement range. If it is detached, the detached sensor generates a warning in the warning device of the detachable device, and either ends the measurement or requests the user to measure again.

When the user performs flexion or extension movement, if the third sensor does not proceed further in the correct direction forward or backward and deviates from the allowable movement path range, the out-of-bounds position is the range of motion of the joint, so the processor determines the range of motion of the joint Ends the measurement of , and displays the measured value, the degree of limitation compared to the normal range, and the degree of improvement compared to the previous measured value on the display device.

8 is an exemplary view for measuring the range of motion of the abduction and adduction motion of the shoulder joint using the joint motion range measuring device according to an embodiment of the present invention.

Referring to FIG. 8 , an abduction of the shoulder joint refers to a motion to spread an arm outward, and an adduction refers to a motion to gather the arm inward.

The user selects the shoulder joint as the joint to be measured through the application of the terminal and selects the abduction or adduction movement as the joint movement. The user attaches the first detachable device 101 so that the first sensor coincides with the axis of the acromion according to the joint motion demonstration and sensor attachment position guidance appearing in the application, and attaches the second detachable device 102 to the second sensor acromion It is attached to coincide with a vertical line passing through, and the third detachable device 103 is attached so that the third sensor coincides with the center line of the humerus. The method of setting the reference position of each sensor is the same as in the case of flexion or extension movement.

When measuring shoulder abduction or adduction motion, the trunk should be fixed so that it does not move, and the spine should not be forward-flexed or backward-flexed. Therefore, when measuring the abduction or adduction motion of the shoulder joint, the first sensor and the second sensor should not deviate from a certain range. The third sensor should move laterally, and in principle, the forearm should be supinated when the abduction angle is greater than 90 to prevent lateral flexion of the body.

The processor sets the allowable movement range of the first sensor and the second sensor and the allowable movement path range of the third sensor, and measures the joint movement range when the user performs an abduction or adduction movement of the shoulder joint, and the measured joint movement range to output This process is the same as in the case of the flexion or extension exercise.

9 is an exemplary view for measuring the range of motion of the horizontal external rotation movement and the horizontal internal rotation movement of the shoulder joint using the joint movement range measuring device according to an embodiment of the present invention, Figure 10 is a joint according to an embodiment of the present invention It is an example of measuring the range of motion of the vertical external rotation and vertical internal rotation of the shoulder joint using the range of motion measurement device.

Referring to FIG. 9 , horizontal external rotation and horizontal internal rotation of the shoulder joint are performed by bringing the upper arm into contact with the trunk and rotating the elbow joint (elbow) outward from the position where the elbow is flexed forward 90 degrees. or inward rotation.

Referring to FIG. 10 , vertical external rotation and vertical internal rotation of the shoulder joint abduct the shoulder joint by 90 degrees and rotate the elbow joint (elbow) outward from the position where the elbow joint is flexed by 90 degrees forward. or inward rotation.

The user selects the shoulder joint as the joint to be measured through the application of the terminal and selects one of horizontal external rotation, horizontal internal rotation, vertical external rotation, and vertical internal rotation as joint motions. The user attaches the first detachable device 101 so that the first sensor is located on the periphery according to the joint motion demonstration and sensor attachment position guidance appearing in the application, and the second detachable device 102 passes the acromion It is attached to coincide with the vertical line, and the third detachable device 103 is attached so that the third sensor coincides with the center line of the ulnar line. The method of setting the reference position of each sensor is the same as in the case of flexion or extension movement.

When measuring one of the horizontal external rotation, horizontal internal rotation, vertical external rotation, and vertical internal rotation of the shoulder joint, the trunk and elbow joints should be fixed so that they do not move, and the spine should not forward or backward. Therefore, when measuring the external rotation or internal rotation of the shoulder joint, the first sensor and the second sensor must not deviate from a certain range. The third sensor needs to move laterally in case of horizontal motion and upward or downward in case of vertical motion.

The processor sets the allowable movement range of the first sensor and the second sensor and the allowable movement path range of the third sensor, and measures the joint movement range when the user performs external or internal rotation of the shoulder joint, and the measured joint movement range to output This process is the same as in the case of the flexion or extension exercise.

11 is an exemplary view for measuring the range of motion of the horizontal abduction motion and horizontal adduction motion of the shoulder joint using the joint motion range measuring device according to an embodiment of the present invention.

Referring to FIG. 11 , horizontal abduction and horizontal adduction of the shoulder joint refer to an exercise in which the shoulder joint is abducted by 90 degrees and the arm is spread outward or the arm is gathered inward.

The user selects the shoulder joint as the joint to be measured through the application of the terminal and selects the horizontal abduction or horizontal adduction as the joint motion. The user attaches the first detachable device 101 so that the first sensor is located on the acromion according to the joint motion demonstration and sensor attachment position guidance appearing in the application, and the second detachable device 102 passes through the acromion It is attached to the trunk so as to be located on the frontal surface of the body, and the third attaching and detaching device 103 is attached so that the third sensor coincides with the center line of the correlative bone. The method of setting the reference position of each sensor is the same as in the case of flexion or extension movement.

When measuring horizontal abduction or horizontal adduction of the shoulder joint, the trunk should be fixed so that it does not move, and the spine should not be side-flexed, forward-flexed, or backward-flexed. Therefore, when measuring the horizontal abduction motion or horizontal adduction motion of the shoulder joint, the first sensor and the second sensor should not deviate from a certain range. The third sensor should move laterally.

The processor sets the allowable movement range of the first sensor and the second sensor and the allowable movement path range of the third sensor, and measures the joint motion range when the user performs horizontal abduction or horizontal adduction of the shoulder joint, and Outputs the joint range of motion. This process is the same as in the case of the flexion or extension exercise.

In the above, the configuration and features of the present invention have been described based on the embodiments of the present invention, but the present invention is not limited thereto, and it is understood that various changes or modifications can be made within the spirit and scope of the present invention. It is apparent to those skilled in the art, and therefore, such changes or modifications are intended to fall within the scope of the appended claims.

100, 101, 102, 103: detachable device 110: sensor
120: transceiver 130: warning device
200: terminal 210: processor
220: reference sensor 230: storage device
240: display device

Claims (15)

a first sensor attached adjacent to a joint to be measured;
a second sensor attached to one side of the first sensor;
a third sensor attached to the other side of the first sensor; and
Receive position information or displacement information of the first sensor, the second sensor, and the third sensor to receive at least one of an absolute position, a relative position, a displacement, and a movement path of the first sensor, the second sensor, and the third sensor A joint range of motion measurement device comprising a; processor for measuring or calculating one. According to claim 1,
Further comprising a first warning device installed adjacent to the first sensor,
The processor is a joint motion range measurement device for generating a warning in the first warning device when the position of the first sensor is out of the allowed movement range during the joint motion range measurement. According to claim 1,
Further comprising a second warning device installed adjacent to the second sensor,
The processor is a joint motion range measurement device for generating a warning in the second warning device when the position of the second sensor is out of the allowed movement path range during the joint motion range measurement. According to claim 1,
Further comprising a third warning device installed adjacent to the third sensor,
The processor is a joint motion range measurement device for generating a warning in the third warning device when the position of the third sensor is out of the allowed movement range during the joint motion range measurement. According to claim 1,
It is fixed to an arbitrary position, and further comprising a reference sensor that serves as a reference for the positions of the first sensor, the second sensor, and the third sensor,
The processor is a joint motion range measuring device for measuring or calculating at least one of an absolute position, a relative position, a displacement, and a movement path of the first sensor, the second sensor, and the third sensor based on the position of the reference sensor . The method of claim 1,
The processor is
Provides the joint and joint motion selection menu to be measured,
guide the attachment positions of the first sensor, the second sensor, and the third sensor,
Receive the start and end signals for measuring the joint range of motion,
A joint range of motion measuring device comprising an application that outputs a measured value, a comparison value to a normal range, or a comparison value to a previous measurement value. A first detachable device comprising a first sensor and a first transceiver, and mounted adjacent to the joint to be measured;
a second detachable device including a second sensor and a second transceiver, and mounted on one side of the first detachable device;
A third detachable device comprising a third sensor and a third transceiver, and mounted on the other side of the first detachable device; and
A fourth transceiver for receiving the position information of the first sensor, the second sensor and the third sensor, the first sensor, the second sensor, and the third sensor measure the range of motion of the joint based on the position information A terminal including a processor and a display device for displaying the calculated range of motion of the joint; Joint motion range measuring device comprising a. 8. The method of claim 7,
The first detachable device further includes a first warning device for generating a sound or vibration when the position of the first sensor is out of the allowed movement range during joint motion range measurement,
The second detachable device further includes a second warning device for generating a sound or vibration when the position of the second sensor is out of the allowed movement path range during joint motion range measurement,
The third detachable device further comprises a third warning device for generating a sound or vibration when the position of the third sensor is out of the allowed movement range during joint motion range measurement. 8. The method of claim 7,
The terminal further includes a reference sensor that serves as a reference for the positions of the first sensor, the second sensor, and the third sensor,
The processor is a joint motion range measuring device for measuring or calculating at least one of an absolute position, a relative position, a displacement, and a movement path of the first sensor, the second sensor, and the third sensor based on the position of the reference sensor . selecting a measurement target joint and joint motion;
Receiving position information measured by a first sensor attached adjacent to the joint to be measured, a second sensor attached to one side of the first sensor, and a third sensor attached to the other side of the first sensor ;
setting reference positions of the first sensor, the second sensor, and the third sensor;
measuring a range of motion of a joint by receiving position movement information of the first sensor, the second sensor, and the third sensor; and
Outputting the measured range of motion; joint motion range measuring method comprising a. 11. The method of claim 10,
The step of setting the reference position comprises:
receiving stop positions of the first sensor, the second sensor, and the third sensor;
predicting a movement range or direction of the first sensor, the second sensor, and the third sensor according to the selected joint motion;
generating a warning when any one of the first sensor, the second sensor, and the third sensor is out of a predicted movement range or movement direction, and requesting to correct the attachment position; and
Receiving the corrected stop position of the first sensor, the second sensor, and the third sensor; joint motion range measuring method comprising a. 11. The method of claim 10,
Measuring the range of motion of the joint comprises:
setting an allowable movement range or an allowable movement path range of the first sensor, the second sensor, and the third sensor according to the selected joint motion; and
Ending the measurement when the position movement of the first sensor, the second sensor, and the third sensor is out of the predicted movement range or the movement path range; joint motion range measurement method comprising a. 11. The method of claim 10,
Measuring the range of motion of the joint comprises:
setting an allowable movement range of the first sensor and the second sensor and an allowable movement path range of the third sensor according to the selected joint motion;
generating a warning and requesting re-measurement when the positions of the first sensor and the third sensor are out of the permitted movement range;
When the position of the second sensor is out of the allowed movement path range, generating a warning and terminating the measurement; joint motion range measuring method comprising a. 11. The method of claim 10,
Outputting the measured movable range comprises:
comparing the measured range of motion with a normal range of motion; and
A method of measuring a joint range of motion, including; comparing the measured range of motion with a previously stored range of motion. A computer-readable recording medium in which a computer program comprising instructions for causing a processor to perform the method of any one of claims 10 to 14 is recorded.

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