A marker level measuring device for three-dimensional motion analysis

Abstract

The present invention relates to a level measuring device for three-dimensional motion analysis marking points, comprising a first forearm, a second forearm, a first cross arm, a second cross arm and a rotation fixed axis A and a rotation fixed axis B; the first forearm and the second forearm are fixedly connected via the rotation fixed axis A, the first forearm and the first cross arm are fixedly connected via the rotation fixed axis B, and the second forearm and the second cross arm are also fixedly connected via the rotation fixed axis B; a level meter is fixedly arranged on both the first cross arm and the second cross arm, and the advantages are as follows: the present invention can improve the accuracy of the position of the fluorescent marking points in the three-dimensional motion analysis process by changing the length and width of the existing measuring ruler arm and adding the setting of the level meter, thereby avoiding errors in naked eye judgment and operation, thereby improving the accuracy of data acquisition, ensuring the data reliability of the diagnosis and evaluation of motor function abnormalities, and shortening the operator's operation time and improving the simplicity of operation.

Description

Technical Field

[0001] The invention relates to the field of medical assistance technology, in particular to a level measuring device for three-dimensional motion analysis marking points. Background Art

[0002] Three-dimensional motion analysis technology is a widely recognized method for fine evaluation of motor dysfunction at home and abroad, and is also one of the most objective methods for evaluating motor dysfunction. Three-dimensional motion analysis data is an important part of the evaluation of patients' motor dysfunction during the collection process. It places fluorescent markers with reflective effects at designated locations on the surface of the subject's body. Accurate positioning is the most important prerequisite for reliable data.

[0003] The acquisition of three-dimensional motion analysis data requires that the two marking points on the heel and the dorsum of the foot are at the same level. However, the current clinical judgment mainly relies on visual judgment or ordinary ruler estimation, which cannot guarantee accuracy. If the marking points on the heel and the dorsum of the foot are not at the same height, the assessed ankle flexion and extension angle will be too large or too small, which will affect the diagnosis and treatment of clinical diseases.

[0004] At present, there is no level measuring device for assisting the placement of markers for three-dimensional motion analysis in clinical practice. Most of them are replaced by ordinary rulers or U-shaped width rulers. Such rulers can only estimate the consistency of height based on the naked eye, and cannot accurately determine whether two markers are maintained at the same level. And they need to be confirmed repeatedly, which is time-consuming and inconvenient to operate.

[0005] So to sum up, there is an urgent need for a three-dimensional motion analysis marker point level measuring device that has a simple structure, is easy to operate, easy to observe, can save operation time, improve the accuracy of the fluorescent marker point position in the three-dimensional motion analysis process, avoid errors in naked eye judgment, and thus improve the accuracy of data acquisition.

[0006] However, there is no report on this kind of marker level measuring device for three-dimensional motion analysis. Summary of the invention

[0007] The purpose of the present invention is to help improve the accuracy of marker point placement during three-dimensional motion analysis data acquisition, ensure the data reliability of motor function abnormality diagnosis and evaluation, while shortening the operation time and improving the ease of operation. It specifically provides a marker point level measuring device for three-dimensional motion analysis.

[0008] To achieve the above object, the technical solution adopted by the present invention is:

[0009] A level measuring device for three-dimensional motion analysis marking points, the level measuring device comprises a first forearm, a second forearm, a first cross arm, a second cross arm and a rotation fixed axis A and a rotation fixed axis B. The first forearm and the second forearm are fixedly connected via the rotation fixed axis A. The first forearm is provided with a scale measurement line at one end close to the rotation fixed axis A, and an angle measurement line is also provided below the scale measurement line, and the scale measurement line and the angle measurement line are compared with each other up and down. The second forearm is also fixedly provided with a measurement comparison plate at one end close to the rotation fixed axis A; the first forearm and the first cross arm are fixedly connected via the rotation fixed axis B, and the second forearm and the second cross arm are also fixedly connected via the rotation fixed axis B; a level is fixedly provided on both the first cross arm and the second cross arm, and a level is also fixedly provided at the center of the rotation fixed axis A, and the levels are all placed horizontally.

[0010] In the above-mentioned three-dimensional motion analysis marker level measuring device, as a preferred embodiment, the rotatable angle between the first forearm and the second forearm is 0-360°.

[0011] In the above-mentioned three-dimensional motion analysis marker point level measuring device, as a preferred embodiment, the rotatable angle between the first forearm and the first cross arm is 90-180°; and the rotatable angle between the second forearm and the second cross arm is also 90-180°.

[0012] In the above-mentioned level measuring device for three-dimensional motion analysis marking points, as a preferred solution, the level meter on the first horizontal arm and the level meter on the second horizontal arm are arranged in a symmetrical structure, and are respectively located on the right side close to the first horizontal arm and the second horizontal arm.

[0013] In the above-mentioned three-dimensional motion analysis marker level measuring device, as a preferred embodiment, the length of the first forearm and the second forearm are both 32-38 cm, and the width is both 2-6 cm.

[0014] In the above-mentioned three-dimensional motion analysis mark point level measuring device, as a preferred solution, the length of the first cross arm and the second cross arm are both 4-8 cm, and the width is both 2-6 cm.

[0015] In the above-mentioned level measuring device for three-dimensional motion analysis marking points, as a preferred solution, the level measuring device is made entirely of hard plastic.

[0016] In the above-mentioned three-dimensional motion analysis marking point level measuring device, as a preferred embodiment, a plurality of grooves are provided on one side of the measurement control plate, and the grooves can just display the scale measurement lines and angle measurement lines on the first forearm, and one side of the measurement control plate can be compared with the scale measurement lines and angle measurement lines at the same time.

[0017] The advantages of the present invention are:

[0018] 1. The invention has simple structure, convenient operation, low production cost, strong practicability, and is conducive to widespread promotion and use in clinical practice.

[0019] 2. The present invention changes the length and width of the existing measuring ruler arm and adds the setting of a level, thereby improving the accuracy of the position of the fluorescent marker point in the three-dimensional motion analysis process, avoiding errors in naked eye judgment, thereby improving the accuracy of data collection, ensuring the data reliability of the diagnosis and evaluation of motor function abnormalities, and at the same time shortening the operator's operation time, improving the simplicity of operation, and thus better assisting the diagnosis and treatment of clinical motor abnormalities.

[0020] 3. The setting of the rotatable angle between the first forearm and the second forearm, and between the first forearm and the first cross arm, and between the second forearm and the second cross arm in the present invention can adapt to the foot sizes measured by different patients, meet the needs of different patients, and improve the comfort of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Attached Figure 1 It is a schematic diagram of the structure of the marker point level measuring device for three-dimensional motion analysis described in the present invention.

[0022] Attached Figure 2 It is a schematic diagram of the structure of the partially rotated level measuring device for three-dimensional motion analysis marking points described in the present invention.

[0023] Attached Figure 3 It is a schematic diagram of the local structure between the first forearm and the second forearm on the level measuring device for three-dimensional motion analysis marking points described in the present invention. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0025] The reference numerals and components involved in the drawings are as follows:

[0026] 1. First forearm 2. Second forearm 3. First cross arm

[0027] 4. Second cross arm 5. Rotation fixed axis A 6. Rotation fixed axis B

[0028] 7. Scale measurement line 8. Angle measurement line 9. Measurement reference board

[0029] 10. Level 11. Groove

[0030] Example 1 A marker level measuring device for three-dimensional motion analysis

[0031] Please see attached Figure 1-3 As shown, attached Figure 1 Schematic diagram of the structure of the marker level measuring device for three-dimensional motion analysis described in the present invention. Figure 2 1 is a schematic diagram of the structure of the partially rotated level measuring device for three-dimensional motion analysis marker points in the present invention. Figure 3 It is a schematic diagram of the local structure between the first forearm and the second forearm on the level measuring device for three-dimensional motion analysis marking points described in the present invention.

[0032] The present invention is mainly used as a tool that can help accurately place fluorescent marking points on the dorsum and heel of the foot during the current three-dimensional motion analysis data collection process. The present invention actually changes the shape and structure of the existing measuring ruler, and avoids errors in naked eye judgment and operation by increasing the length of the lateral ruler arm and installing a level at the end of the bilateral lateral ruler arm and the junction of the two forearms, so as to improve the accuracy of three-dimensional motion analysis data collection. It specifically provides a level measuring device for three-dimensional motion analysis marking points, and the level measuring device consists of a first forearm 1, a second forearm 2, a first cross arm 3, a second cross arm 4 and a rotation fixed axis A5 and a rotation fixed axis B6; the shapes of the first forearm 1, the second forearm 2, the first cross arm 3, and the second cross arm 4 are all approximately rectangular structures, and the first forearm 1 and the second forearm 2 are connected by a rotation The first forearm 1 is fixedly connected to the rotating fixed axis A5, and a scale measurement line 7 is provided at one end of the first forearm 1 close to the rotating fixed axis A6, and an angle measurement line 8 is also provided below the scale measurement line 7, and the scale measurement line 7 and the angle measurement line 8 are compared with each other up and down, and the scale measurement line 7 can be marked with a digital scale of 0-10cm, or 0-20 or other display sizes below to facilitate the operator to observe, and at the same time, 0-30° or 0-60° or other angle numbers for the operator to read conveniently can be marked below the angle measurement line 8, thereby saving the operator's measurement time and improving work efficiency. At the same time, the setting of the scale measurement line 7 and the angle measurement line 8 can assist the operator in accurately locating the two marking points on the heel and the dorsum of the patient's foot, thereby improving the accuracy of three-dimensional motion analysis data acquisition. The second forearm 2 is also fixedly provided with a measurement control plate 9 at one end close to the rotation fixed axis A5, and the measurement control plate 9 and the second forearm 2 are an integrated structure, and the measurement control plate 9 is mainly used for measuring size and angle; the first forearm 1 and the first cross arm 3 are fixedly connected by the rotation fixed axis B6, and the second forearm 2 and the second cross arm 4 are also fixedly connected by the rotation fixed axis B6; a level 10 is fixedly provided on the first cross arm 1 and the second cross arm 2, and a level 10 is also fixedly provided at the center position of the rotation fixed axis A5, and the levels 10 are all placed horizontally. The setting of the level 10 can facilitate the adjustment of the angle of the ruler during measurement, making it clearer and convenient for the operator to make adjustments, and also ensure that the two marking points on the dorsum and heel of the patient measured are always at the same horizontal height, avoiding errors in naked eye judgment and operation, and improving the accuracy of three-dimensional motion analysis data acquisition.

[0033] In this embodiment, the rotatable angle between the first forearm 1 and the second forearm 2 is preferably 0-360°.

[0034] In this embodiment, the rotatable angle between the first forearm 1 and the first cross arm 3 is preferably 90-180°; and the rotatable angle between the second forearm 2 and the second cross arm 4 is also 90-180°, and the setting of the rotatable angle can adapt to the foot sizes measured by different patients, meet the needs of different patients, and improve the comfort of patients.

[0035] In this embodiment, it is preferred that the spirit level 10 on the first cross arm 1 and the spirit level 10 on the second cross arm 2 are arranged in a symmetrical structure, and are respectively located close to the right side of the first cross arm 1 and the second cross arm 2 .

[0036] In this embodiment, preferably, the length of the first forearm 1 and the second forearm 2 are both 32-38 cm, and the width are both 2-6 cm.

[0037] In this embodiment, preferably, the lengths of the first cross arm 3 and the second cross arm 4 are both 4-8 cm, and the widths are both 2-6 cm.

[0038] In this embodiment, it is preferred that the level measuring device is made entirely of hard plastic, and the hard plastic can be made of PC material, which can ensure the stability of the cross arm and the forearm, so as to increase the number of uses of the device and increase its stability.

[0039] In this embodiment, it is preferred that a plurality of grooves 11 are provided on one side of the measurement control plate 9, and the grooves 11 can just display the scale measurement line 7 and the angle measurement line 8 on the first forearm 1, and one side of the measurement control plate 9 can be simultaneously compared with the scale measurement line 7 and the angle measurement line 8. The plurality of grooves 11 on the measurement control plate 9 can enable the side of the measurement control plate 9 to be simultaneously aligned with the scale measurement line 7 and the angle measurement line 8, so as to facilitate the operator to accurately record the readings, and provide assistance for accurate marking between the heel and the instep of the patient, so as to reduce the errors of naked eye judgment and operation, and improve the accuracy of three-dimensional motion analysis data acquisition.

[0040] The method of using the present invention is as follows: when the operator is in specific use, he needs to hold the center of the ruler with one hand and adjust the horizontal arm of the ruler with the other hand so that one side of the horizontal arm is connected to the bottom of the fluorescent marker ball at the dorsum of the foot of the three-dimensional motion analysis subject, keep the horizontal arm and the center position level in a horizontal position, and directly stick the adjusted horizontal arm of the ruler on the other side to the heel to locate the height position of the fluorescent marker ball at the heel so that it is at the same horizontal height as the fluorescent marker ball at the dorsum of the foot. After the fluorescent marker ball is accurately placed, remove the ruler. As the foot length of each subject is different, the angle between the two forearms can be appropriately adjusted to meet the needs of different patients.

[0041] It should be noted that the present invention has a simple structure, is easy to operate, has a low manufacturing cost, and is highly practical. It can help improve the accuracy of marker point placement during three-dimensional motion analysis data acquisition, avoid errors in naked eye judgment, and thus improve the accuracy of data acquisition. It ensures the data reliability of motor function abnormality diagnosis and evaluation, while shortening the operator's operation time and improving the ease of operation, thereby better assisting the diagnosis and treatment of clinical motor abnormalities. The rotating fixed axis and level described in the present invention are disclosed in the prior art, and some of them are also sold and used on the market, so they will not be elaborated here.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the principle of the present invention. These improvements and supplements should also be regarded as the scope of protection of the present invention.

Claims

1. A level measuring device for foot three-dimensional motion analysis marker points, characterized in that: The level measuring device is composed of a first forearm, a second forearm, a first cross arm, a second cross arm and a rotationally fixed axis A and a rotationally fixed axis B. The first forearm and the second forearm are fixedly connected via the rotationally fixed axis A. A scale measuring line is provided at one end of the first forearm close to the rotationally fixed axis A, and an angle measuring line is also provided below the scale measuring line, and the scale measuring line and the angle measuring line are compared with each other up and down. A measurement comparison plate is also fixedly provided at one end of the second forearm close to the rotationally fixed axis A; the first forearm and the first cross arm are fixedly connected via the rotationally fixed axis B, and the second forearm and the second cross arm are also fixedly connected via the rotationally fixed axis B; a level is fixedly provided on both the first cross arm and the second cross arm, and the rotationally fixed axis A is provided on the first cross arm and the second cross arm. A level is also fixedly provided at the center position of the rotating fixed axis A, and the levels are all placed horizontally, the rotatable angle between the first forearm and the second forearm is 0-360°, the rotatable angle between the first forearm and the first cross arm is 90-180°; and the rotatable angle between the second forearm and the second cross arm is also 90-180°, the level on the first cross arm and the level on the second cross arm are arranged in a symmetrical structure, and are respectively located near the right side of the first cross arm and the second cross arm, a plurality of grooves are provided on one side of the measurement control plate, and the grooves can just display the scale measurement lines and angle measurement lines on the first forearm, and one side of the measurement control plate can be compared with the scale measurement lines and the angle measurement lines at the same time.

2. The level measuring device for foot three-dimensional motion analysis marker points according to claim 1, characterized in that: The length of the first forearm and the second forearm are both 32-38 cm, and the width are both 2-6 cm.

3. The level measuring device for foot three-dimensional motion analysis marker points according to claim 1, characterized in that: The lengths of the first cross arm and the second cross arm are both 4-8 cm, and the widths are both 2-6 cm.

4. The level measuring device for foot three-dimensional motion analysis marker points according to claim 1, characterized in that: The level measuring device is made of hard plastic as a whole.

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