WO2020091359A1

WO2020091359A1 - Auxiliary tool for measuring leg length discrepancy and method for measuring leg length discrepancy using smart terminal

Info

Publication number: WO2020091359A1
Application number: PCT/KR2019/014316
Authority: WO
Inventors: 채동식; 강경일
Original assignee: 가톨릭관동대학교산학협력단
Priority date: 2018-11-01
Filing date: 2019-10-29
Publication date: 2020-05-07
Also published as: KR102174173B1; KR20200050101A

Abstract

The present invention relates to an auxiliary tool for measuring leg length discrepancy and a method for measuring the degree of leg length discrepancy of a wearer wearing same by using a smartphone or the like. The auxiliary tool for measuring leg length discrepancy according to the present invention comprises: a first belt main body formed in a band shape having a certain length and worn on the waist of the human body; and a pair of first markers provided on the first belt main body and provided to be movable along the longitudinal direction of the first belt main body. The auxiliary tool according to the present invention can acquire, through simple photography, information needed for measuring the degree of leg length discrepancy using a smartphone or the like. Also, the method for measuring leg length discrepancy using a smart terminal according to the present invention can determine, in addition to the degree of leg length discrepancy, the cause of leg length discrepancy or the degree of scoliosis that may result from leg length discrepancy, and can also provide correction-related information, such as the height of a shoe insert capable of temporarily correcting leg length discrepancy.

Description

A method for measuring lower limb motion using an auxiliary tool and a smart terminal for measuring lower limb

The present invention relates to a method for measuring the degree of lower extremity of a wearer who wears it using an auxiliary tool for measuring lower extremity and a smart phone.

Legs with different leg lengths are called lower limbs, but one leg is longer or shorter than the other. It is not uncommon to see a slight difference during the growing season, but if the difference in length is about 2 cm or more, there may be a clinical problem.

Lower limb immobilization occurs due to changes in bone growth, which may be caused by fractures, infections, tumors, or other unknown reasons, and is rarely accompanied by congenital Magog, or other syndrome.

No special treatment is required if the degree of lower extremity is less than 2cm, but in the case of 2cm to 5cm, surgery to increase the heel of the short leg or to prevent the growth plate of the normal leg from growing when bone growth is over can be performed. have. In general, if the degree of lower extremity is 3 to 5 cm or more, extremity extension may be performed. A straight or right barrel external fixation device is fixed to the bone and gradually stretched.

However, the precise diagnosis and treatment in the hospital consumes time and cost, and a method for measuring the lower limb motion that can be temporarily performed before diagnosis and treatment in the hospital is needed.

As an example of such a technique for measuring the length of the leg, for example, 20-0470728 for registration room "leg length difference measuring device" (hereinafter referred to as prior art 1).

Prior art 1 describes a tool for directly measuring the degree of lower extremity, but there is a problem that it is inconvenient to carry, etc. and cannot be obtained other than information according to the numerical value of lower extremity.

The present invention provides an auxiliary tool and method for measuring the degree of lower limb float in a simple manner.

In addition, the present invention provides a method of providing a degree of lateral pelvic warpage or scoliosis in addition to the extent of lower extremity sinus.

In addition, the present invention provides a method for providing correction-related information such as the height of an insole capable of temporarily correcting the lower extremity with the information provided as described above.

The auxiliary tool for measuring the lower limb according to the present invention is formed in a belt shape having a predetermined length and is provided on the first belt body and the first belt body worn on the main body of the human body, along the longitudinal direction of the first belt body. It is provided with a pair of first markers provided to enable movement of the position.

In addition, a pair of second belts having a second belt body formed in a belt shape having a predetermined length and worn on the thigh-side leg of the human body, and a second marker provided on the second belt body; And a connecting member formed in a belt shape with one end connected to both side surfaces of the first belt body, and the other end connected to the second belt.

In addition, the connecting member may be formed to be adjustable in length between the first belt and the second belt.

In addition, the first marker and the second marker may be at least one of a light-emitting element, a color marker divided into a constant color, and a shape marker formed into a specific shape.

As a method of measuring the degree of lower limb with respect to a wearer wearing the above-mentioned auxiliary device for measuring the lower limb, the pair of first markers are respectively positioned at positions corresponding to both anterior iliac bone poles of the wearer wearing the first belt. A first step of moving; Photographing a wearer wearing the first belt using a camera unit of a smart terminal; A third step in which the smart terminal calculates a first angle which is an angle between a line segment connecting the pair of first markers and a horizontal line; And a fourth step in which the smart terminal calculates at least one of pelvic obliquity and lower limb injuries from the calculated first angle.

In addition, in the first step, the wearer may further include moving the second markers to a position corresponding to the femoral femoral region of the wearer while wearing the second belt.

In addition, in the third step, the smart terminal calculates a second angle that is an angle between a line segment and a horizontal line connecting the second markers; And correcting or verifying the first angle by reflecting the calculated second angle.

In addition, the smart terminal may further include a fifth step of providing a height of the orthodontic insole for the temporary immobilization of the lower extremity corresponding to the estimated scoliosis degree and the lower extremity degree.

In addition, the fifth step may include: a 5-1 step of calculating a length from each of the pair of first markers to an end of a leg at a corresponding position from an image of the photographed wearer; And a step 5-2 of calculating the height of the orthodontic insole by comparing lengths to the calculated leg end.

The auxiliary tool according to the present invention allows the user to obtain necessary information in measuring the degree of lower limb float using a smartphone or the like by simply photographing.

In addition, the method for measuring lower extremity using a smart terminal according to the present invention enables the determination of scoliosis, which may occur due to lower extremity or the lower extremity, in addition to the lower extremity, and temporarily corrects lower extremity It can provide correction related information such as the height of the insole.

That is, there is an effect that the leg length can be temporarily corrected until a precise diagnosis in the hospital by calculating the degree of the lower extremity and scoliosis in a simple manner while not calculating the leg length directly or additionally.

1 is a schematic perspective view showing an auxiliary tool for measuring the lower limb according to an embodiment of the present invention.

2 is a flow chart showing a method for measuring lower limb floating using a smart terminal according to an embodiment of the present invention.

3 to 6 are schematic diagrams for explaining the structure of the human body as basic information for measuring the lower extremity.

7 is a schematic diagram for explaining the principle of a method for measuring lower limb floating according to an embodiment.

8 is a flowchart illustrating a method for measuring lower limb floating using a smart terminal according to another embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the absence of specific definitions or references, terms indicating directions used in this description are based on conditions indicated in the drawings. In addition, the same reference numerals refer to the same members throughout each embodiment. On the other hand, each configuration displayed on the drawing may exaggerate its thickness or dimensions for convenience of description, and does not mean that it should actually be configured at a ratio between the corresponding dimensions or configurations.

Referring to Figure 1 will be described an auxiliary tool for measuring the lower limb according to an embodiment. 1 is a schematic perspective view showing an auxiliary tool for measuring the lower limb according to an embodiment of the present invention.

The auxiliary tool 100 for measuring the lower limb according to the present invention includes a first belt 110, a connecting member 150, and a second belt 200.

The first belt 110 is formed in a belt shape having a predetermined length so that the body can be worn on the main body. The body of the first belt 110 may be provided with a buckle or the like of a general belt so that it is easy to wear, and it may be formed of an elastic member so that it can be worn in an extended state. That is, the first belt 110 can be worn on the waist of the human body through various shapes and configurations, and there is no particular limitation in the configuration.

The body of the first belt 110 is provided with a pair of first markers 111. The first marker 111 is provided to move the horizontal position by moving along the longitudinal direction of the first belt 110. Likewise, the first marker 111 may be implemented using a clip method or a separate member surrounding the first belt 110, and is not limited in a special configuration.

The second belt 200, like the first belt 110, is formed in a belt shape having a predetermined length so that it can be worn on the leg thigh side of the human body. The second belt 200 is provided in a pair to correspond to the left and right legs, and each second belt 200 is provided with one second marker 210. One second belt 200 corresponds to one first marker 111.

The connecting members 150 are provided in a pair, each formed in a band shape. One end side of the connecting member 150 is respectively connected to both side surfaces of the first belt 110, and the other end side is connected to the second belt 200. The connecting member 150 may include length adjusting parts for adjusting the length of the strap or the like.

On the other hand, the first marker 111 and the second marker 210 are provided so as to be distinguishable on the captured image, respectively. That is, the first marker 111 and the second marker 210 may include a light emitting device, or may be color markers formed in a certain color to be distinguishable on an image or shape markers formed in a specific shape, and combinations thereof. It can also be formed.

For example, in the case of a marker by a combination of shape and color, the positions of the first marker 111 and the second marker 210 on the image may be calculated through the analysis of the pixel value of the captured image.

A method for measuring lower limb motion using a smart terminal according to an embodiment will be described with reference to FIGS. 2 to 8. Figure 2 is a flow chart showing a method for measuring the lower limb using a smart terminal according to an embodiment of the present invention, Figures 3 to 6 are schematic diagrams for explaining the structure of the human body as basic information for measuring the lower limb 7 is a schematic diagram for explaining the principle of the method for measuring the lower limb floating according to an embodiment. 8 is a flowchart illustrating a method for measuring lower limb floating using a smart terminal according to another embodiment.

The method for measuring the lower extremity using a smart terminal according to an embodiment of the present invention relates to a method for measuring the degree of lower extremity floating for a wearer wearing the above-mentioned auxiliary tool for measuring lower extremity.

The smart terminal may be a general smart phone or the like, and the following method for measuring the degree of lower extremity may be implemented as an application using the camera unit of the smart phone. That is, measuring the following degree of lower extremity floating or providing related information can be obtained from analysis of a captured image analysis and analysis results of an application of a smartphone.

The method for measuring the lower extremity according to the present embodiment is a first step (S10) in which the pair of first markers are respectively moved to positions corresponding to both anterior iliac bones of the wearer wearing the first belt (S10), and the camera of the smart terminal. A second step (S20) of photographing a wearer wearing the first belt by using a wealth, and a third step of calculating the first angle, which is the angle between the line segment and the horizontal line connecting the pair of first markers by the smart terminal ( S30) and the fourth step (S40) in which the smart terminal calculates at least one of the estimated scoliosis degree and lower extremity degree from the calculated first angle.

Specifically, in the first step (S10), as described above, the first marker and the second marker are set to the correct position for the wearer wearing the auxiliary tool.

As shown in FIG. 3, the anterior iliac crest (ASIS) is a portion protruding toward the front located at the upper front portion of the iliac bone, and corresponds to a portion of the human skeleton that can be easily found by tactile feel. In the case of a normal person, it is easy to recognize the part protruding toward the front from both sides of the pelvis, and in a normal case, the line segment connecting the two anterior iliac bones is parallel to the horizontal line.

As shown in Figure 4, the femur refers to the bone of the thigh among the human body, and the protrusion protruding laterally among the femur is called the femoral femoral part.

On the other hand, with reference to Figure 5, the lumbar spine 5 (L5) is the lowermost part of the lumbar spine, when lateral distortion of the pelvis occurs, tilting of the lumbar spine 5 (L5) occurs, which may lead to scoliosis Can be.

Referring to FIG. 6, the first marker is moved to be located in the anterior iliac crest (ASIS, P1) described above, and the second marker is moved to a position corresponding to the femoral femoral part P2.

In the second step (S20), the image of the wearer is photographed using a smart terminal such as a smart phone. At this time, the photographing should be performed so that both the first marker and the second marker described above are included, and it is preferable to photograph so that all of the human legs are included.

In the third step S30, the first angle θ2 is calculated from the captured image. The first angle θ2 means the angle of the line segment P1-P1 connecting the pair of first markers and the horizontal line, and the horizontal angle of the front or rear reference lumbar vertebra 5 (L5) from the first angle θ2 It can be estimated as (θ1) or used as basic data for calculating the horizontal angle (θ1) of the lumbar vertebra 5 (L5) through slight correction.

In addition, in the third step, the smart terminal may additionally calculate a second angle, which is the angle between the line segment P2-P2 connecting the second markers and the horizontal line. It may be used to correct or verify the previously calculated first angle by reflecting the calculated second angle.

In the fourth step (S40), the smart terminal calculates an estimate of the degree of scoliosis and / or the lower extremity from the calculated first angle. As described above, the degree of scoliosis can be seen from the degree of the fifth lumbar spine. That is, the angle of the lumbar spine 5 is an angle that causes scoliosis, and the extent of its fold can be estimated from the angle formed by the line segment connecting both the anterior iliac bone and the horizontal line as described above.

The degree of lower limb sinus can be estimated from the difference in height of the anterior iliac crest. That is, Sin (θ2) is a formula representing the height difference between two anterior iliac crests with respect to the horizontal line. Using this calculation formula, it is possible to estimate the degree of lower limb float.

Meanwhile, as illustrated in FIG. 8, the method may further include providing correction-related information that can be temporarily used by the wearer by using the derived information.

In the fifth step (S50), the height of the orthodontic insole to be temporarily corrected can be presented using the degree of lower limb float using the equation representing the height difference between the two anterior iliac bone poles described above. It is also possible to present.

For example, the length of the first marker on the left and the leg end positioned below the first marker is calculated through image processing of the image of the photographed wearer, and the first marker on the right and the bottom of the corresponding first marker are calculated. Calculate the length to the end of the leg where it is located. The height of the orthodontic insole can then be calculated by comparing the calculated lengths from the first markers to the leg ends. In the case of this method, there is a difference that the actual leg length can be reflected compared to the method using the height difference of the anterior iliac crest. On the other hand, the position of the end of the leg, that is, the sole or the toe, can be progressed through binarization of the captured image, edge extraction, and shape analysis, and when calculating the position of the end of the leg, It can be used together to calculate the leg length.

By calculating the height of the orthodontic insole in such a simple and reliable manner, it is possible to obtain an effect of preventing acquired disorders or progressing further.

The preferred embodiments of the present invention have been described above, but the technical spirit of the present invention is not limited to the above-described preferred embodiments, and may be variously implemented within a range not departing from the technical spirit of the present invention as specified in the claims. have.

Claims

A first belt body formed in a belt shape having a predetermined length and worn on the main body of the human body; And

A pair of first markers provided on the first belt body and provided to enable movement of positions along the longitudinal direction of the first belt body.
According to claim 1,

A pair of second belts having a second belt body which is formed in a belt shape having a predetermined length and worn on the leg thigh side of the human body, and a second marker provided on the second belt body; And

It is formed in a belt shape, one end is connected to both sides of the first belt body, the other end is a connecting member connected to the second belt; including the auxiliary tool for measuring the lower body.
According to claim 2,

The connecting member is an auxiliary tool for measuring the lower extremity, which is formed to be adjustable in length between the first belt and the second belt.
According to claim 3,

The first marker and the second marker are at least one of a light-emitting element, a color marker divided into a constant color, and a shape marker formed into a specific shape.
As a method for measuring the degree of lower limb for a wearer wearing the auxiliary tool for measuring the lower limb according to claim 1 to claim 5,

A first step of moving each of the pair of first markers to positions corresponding to both anterior maxillary osteophytes of the wearer wearing the first belt;

Photographing a wearer wearing the first belt using a camera unit of a smart terminal;

A third step in which the smart terminal calculates a first angle which is an angle between a line segment connecting the pair of first markers and a horizontal line; And

A fourth step in which the smart terminal calculates at least one of a scoliosis degree and an estimate of the degree of lower extremity from the calculated first angle: a method for measuring lower extremity using a smart terminal.
The method of claim 5,

In the first step,

A method of measuring lower extremity movement using a smart terminal, further comprising moving the second markers to a position corresponding to the femoral femoral region of the wearer while the wearer wears the second belt.
The method of claim 6,

In the third step,

Calculating, by the smart terminal, a second angle that is an angle between a line segment connecting the second markers and a horizontal line; And

A method of measuring lower limb motion using a smart terminal, further comprising correcting or verifying the first angle by reflecting the calculated second angle.
The method of claim 5,

The smart terminal further comprises a fifth step of providing a height of the orthodontic insole for temporary immobilization of the lower extremity corresponding to the calculated pelvic obliquity and the estimate of the degree of lower extremity. .
The method of claim 8,

The fifth step,

A step 5-1 of calculating a length from each of the pair of first markers to a leg end of a corresponding position from the photographed image of the wearer; And

Method of measuring the lower limb using a smart terminal, including; 5-2 step of calculating the height of the orthodontic insole by comparing the length to the calculated leg end.