Ankle joint moment measuring device

Abstract

The application discloses an ankle joint torque measuring device. The ankle joint torque measuring device comprises a foot pedal unit, a sensing unit, a control unit and a display unit. The bottom of the foot pedal unit is provided with the sensing unit. The sensing unit is installed on a bottom plate. One end of the control unit is connected with the sensing unit. One end of the display unit is connected with the other end of the control unit. The ankle joint torque measuring device can measure and evaluate the size of the ankle joint torque of a human body.

Description

Technical Field

[0001] This invention relates to the field of medical rehabilitation device technology, and in particular to an ankle joint torque measuring device. Background Technology

[0002] The ankle is an important part of the body. During movement, the ankle joint coordinates the joints of the foot and is a crucial joint for lower limb movement. Ankle injuries are very common in sports. They account for approximately 25% of all sports-related injuries. Ligament injuries are the most common type of ankle injury, accounting for about 80% of all ankle injuries in sports. Ankle injuries not only affect athletes' normal competition and training, but improper treatment can also lead to ankle instability and chronic conditions such as degenerative osteoarthritis.

[0003] Current rehabilitation techniques rely on physicians' experience to evaluate ankle joint rehabilitation effectiveness, resulting in limited objectivity, high arbitrariness, and unclear and unintuitive evaluation results. Patients cannot directly obtain assessments of their rehabilitation progress. Furthermore, while ankle torque values ​​during plantar flexion and dorsiflexion are easily measured, accurate measurements during inversion and eversion are difficult to obtain. Therefore, devices capable of independently measuring ankle joint torque are crucial. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide an ankle joint torque measuring device to solve the problems in the prior art that require doctors' experience to evaluate the rehabilitation effect of the ankle joint, which has low objectivity, high arbitrariness, and the evaluation results are not clear and intuitive enough. Patients cannot intuitively obtain the assessment conclusion of the rehabilitation effect, and the torque value of the ankle joint is difficult to accurately obtain when the foot is inverted or everted.

[0005] To achieve the above and other related objectives, the present invention provides an ankle joint torque measuring device, the ankle joint torque measuring device comprising:

[0006] At least one foot pedal unit, wherein a sensing unit is provided at the bottom of the foot pedal unit;

[0007] At least one sensing unit is mounted on the base plate;

[0008] A control unit, one end of which is connected to the sensing unit;

[0009] The display unit is connected at one end to the other end of the control unit.

[0010] In one embodiment of the present invention, the foot pedal unit includes:

[0011] A heel support plate, which is connected to the base plate via the sensing unit;

[0012] The first foot support plate is connected to the base plate via the sensing unit;

[0013] The second foot support plate is connected to the base plate via the sensing unit.

[0014] In one embodiment of the present invention, the sensing unit includes:

[0015] At least one first sensor is disposed between the heel support plate and the base plate;

[0016] At least one second sensor is disposed between the first foot support plate and the base plate;

[0017] At least one third sensor is disposed between the second foot support plate and the base plate.

[0018] In one embodiment of the present invention, a first fixing strap is installed at each end of the heel support plate, and the two first fixing straps are used to fix the heel position.

[0019] In one embodiment of the present invention, a second fixing strap is installed at one end of the first foot support plate, and a third fixing strap is installed at one end of the second foot support plate. The second fixing strap and the third fixing strap are used to fix the foot position.

[0020] In one embodiment of the present invention, the sensing unit includes one or more of a weighing sensor, a cantilever beam sensor, a tension / compression sensor, and a multidimensional force sensor.

[0021] In one embodiment of the present invention, the first sensor, the second sensor, and the third sensor are not on the same straight line.

[0022] In one embodiment of the present invention, the ankle joint torque measuring device further includes a bracket, one end of which is fixed to the base plate, and the other end of which is equipped with the display unit.

[0023] In one embodiment of the present invention, the display unit includes a display screen, which is fixed to the bracket.

[0024] In one embodiment of the present invention, the control unit includes a controller, which is connected to the sensing unit and the display unit.

[0025] As described above, the ankle joint torque measuring device of the present invention has the following beneficial effects:

[0026] The ankle joint torque measuring device of the present invention includes a foot pedal unit, a sensing unit, a control unit, and a display unit. The ankle joint torque measuring device of the present invention can measure and evaluate the magnitude of the ankle joint torque in the human body and provide users with personalized guidance for active rehabilitation training. It has strong objectivity, and the evaluation results are relatively clear and intuitive. Patients can intuitively obtain the evaluation conclusion of the rehabilitation effect. Moreover, it can accurately obtain the torque value at the ankle joint when the foot is inverted, everted, dorsiflexed, or plantarflexed. In addition, the ankle joint torque measuring device of the present invention can also meet the requirements for measuring and evaluating the ankle joint torque in healthy individuals.

[0027] The ankle joint torque measuring device of the present invention has a simple structure, is easy to measure, and can meet the measurement needs of users with different foot sizes, making it easy to popularize and promote.

[0028] The ankle joint torque measuring device of the present invention is small in size, easy to use, and can be used by users with different foot sizes to measure and assess ankle joint torque, and provides users with personalized guidance for active rehabilitation training to help users recover as soon as possible. Attached Figure Description

[0029] Figure 1 This is a structural block diagram of an ankle joint torque measuring device provided in an embodiment of this application.

[0030] Figure 2 This is a front view of an ankle joint torque measuring device provided in an embodiment of this application.

[0031] Figure 3 This is a top view of an ankle joint torque measuring device provided in an embodiment of this application.

[0032] Figure 4 The left view of an ankle joint torque measuring device provided in an embodiment of this application.

[0033] Figure 5 Hidden line diagram of an ankle joint torque measuring device provided in an embodiment of this application.

[0034] Component designation explanation

[0035] 1. Base plate

[0036] 2. Heel support plate

[0037] 3 First foot support plate

[0038] 4 Second foot support plate

[0039] 51 First Sensor

[0040] 52 Second Sensor

[0041] 53 Third Sensor

[0042] 61 First fixing belt

[0043] 62 Third fixing belt

[0044] 63 Second fixing belt

[0045] 7. Monitor

[0046] 8 brackets Detailed Implementation

[0047] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0048] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0049] Please see Figure 1 , Figure 1This is a structural block diagram of an ankle joint torque measuring device provided in an embodiment of this application. The ankle joint torque measuring device includes a base plate 1, on which at least one sensing unit is mounted. The sensing unit is located at the bottom of a foot pedal unit, i.e., between the base plate 1 and the foot pedal unit. The ankle joint torque measuring device also includes a control unit and a display unit. One end of the control unit is connected to the sensing unit. The sensing unit is used to collect human body pressure signals, weight signals, etc., and sends the collected human body pressure signals, weight signals, etc., to the control unit. The control unit is used to control and analyze the human body pressure signals, weight signals, etc., to obtain the analyzed results, and sends the analyzed results to the display unit. The display unit is used to display the analyzed results and can be fixed to the base plate 1 by a bracket 8. One end of the control unit is communicatively connected to the sensing unit, and the other end of the control unit is communicatively connected to the display unit. Specifically, the control unit and the sensing unit can communicate via wired or wireless means. The other end of the control unit can be connected to the display unit via wired or wireless means. The ankle joint torque measuring device of the present invention can be widely used in the field of rehabilitation medical devices.

[0050] For details, please refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 2 This is a front view of an ankle joint torque measuring device provided in an embodiment of this application. Figure 3 This is a top view of an ankle joint torque measuring device provided in an embodiment of this application. Figure 4This is a left view of an ankle joint torque measuring device provided in an embodiment of this application. The foot pedal unit includes, but is not limited to, a heel support plate 2, a first foot support plate 3, and a second foot support plate 4. The heel support plate 2, the first foot support plate 3, and the second foot support plate 4 can be divided into multiple sub-regions; that is, the heel support plate 2 can be divided into multiple sub-heel support plate regions, the first foot support plate 3 can be divided into multiple sub-first foot support plate regions, and the second foot support plate 4 can be divided into multiple sub-second foot support plate regions. When the heel support plate 2, the first foot support plate 3, and the second foot support plate 4 are divided into multiple sub-regions, at least one sensing unit or sensor needs to be provided at the bottom of each sub-heel support plate region, sub-first foot support plate region, and sub-second foot support plate region. The number of sensing units or sensors can be adjusted as needed. Specifically, the heel support plate 2 is connected to the base plate 1 through the sensing unit. The first foot support plate 3 is disposed at the front end of the heel support plate 2, and is connected to the base plate 1 through the sensing unit. The second foot support plate 4 is disposed at the front end of the heel support plate 2, and is arranged parallel to the first foot support plate 3. The second foot support plate 4 is connected to the base plate 1 through the sensing unit. Specifically, the heel support plate 2 is used to place the heel of a person, and both the first foot support plate 3 and the second foot support plate 4 are used to place the forefoot of a person. The sensing unit includes at least one first sensor 51, at least one second sensor 52, and at least one third sensor 53. The first sensor 51 may be, but is not limited to, one or more of a weighing sensor, a cantilever beam sensor, a tension / compression sensor, a multi-dimensional force sensor, and an S-shaped tension / compression sensor. The second sensor 52 may be, but is not limited to, one or more of a weighing sensor, a cantilever beam sensor, a tension / compression sensor, a multi-dimensional force sensor, and an S-shaped tension / compression sensor. The third sensor 53 may be, but is not limited to, one or more of the following: a load cell, a cantilever beam sensor, a tension / compression sensor, a multi-dimensional force sensor, and an S-type tension / compression sensor. The load cell is a force sensor. The cantilever beam sensor can be fixed at one end and loaded at the other, and can use a steel ball for force transmission, with upper and lower pressure heads bearing the load, or a double-ball head structure, and has a good sealing structure. It automatically adjusts itself after being subjected to force, is easy to install, convenient to use, and has good interchangeability. The tension / compression sensor, also known as a resistance strain gauge sensor, is a device that converts physical signals into measurable electrical signals. The first sensor 51 is disposed between the heel support plate 2 and the base plate 1, and is used to sense pressure signals, weight signals, etc., from the human heel.The second sensor 52 is disposed between the first foot support plate 3 and the base plate 1, and is used to sense pressure signals, weight signals, etc., of the human foot. The third sensor 53 is disposed between the second foot support plate 4 and the base plate 1, and is used to sense pressure signals, weight signals, etc., of the human foot. The first sensor 51, the second sensor 52, and the third sensor 53, which are distributed at the bottom of the heel support plate 2, the first foot support plate 3, and the second foot support plate 4, are not on the same straight line.

[0051] For details, please refer to Figure 5 , Figure 5This is a hidden line diagram of an ankle joint torque measuring device provided in an embodiment of this application. The heel support plate 2, the first foot support plate 3, and the second foot support plate 4 can be, but are not limited to, rectangular or circular pedals. The heel support plate 2, the first foot support plate 3, and the second foot support plate 4 can also be, but are not limited to, shoe-shaped accessories with the bottom divided into several areas. The shape of the base plate 1 can be, but is not limited to, square, circular, or elliptical. Specifically, first fixing straps 61 are respectively installed at both ends of the heel support plate 2, and the two first fixing straps 61 are used to fix the heel position. A second fixing strap 63 is installed at one end of the first foot support plate 3, and a third fixing strap 62 is installed at one end of the second foot support plate 4, and the second fixing strap 63 and the third fixing strap 62 are used to fix the foot position. The positions of the two first fixing straps 61 on the heel support plate 2 can be adjusted, and the positions of the third fixing strap 62 and the second fixing strap 63 can also be adjusted. When the foot is placed on the heel support plate 2, the first ball of the foot support plate 3, and the second ball of the foot support plate 4, the two first fixing straps 61 are closed, and the third fixing strap 62 and the second fixing strap 63 are closed. When the foot leaves the heel support plate 2, the first ball of the foot support plate 3, and the second ball of the foot support plate 4, the two first fixing straps 61 are opened, and the third fixing strap 62 and the second fixing strap 63 are opened. The display unit includes a display 7, which is fixed to the bracket 8. Specifically, the display 7 may be, but is not limited to, an LCD display, an LED display, or a screen. The shape of the display 7 can be set as needed, and the shape of the display 7 may be, but is not limited to, square, round, or elliptical. The control unit includes a controller, which is connected to the first sensor 51, the second sensor 52, the third sensor 53, and the display 7. Specifically, the controller may be, but is not limited to, a PLC controller. The first sensor 51, the second sensor 52, and the third sensor 53 are used to measure the force exerted by the foot on various areas. The first sensor 51, the second sensor 52, and the third sensor 53 send the collected force signals to the controller. Based on the values ​​of each force sensor, the controller can calculate the point of action and force of the foot in each area, and further calculate the torque values ​​at the ankle joint during inversion, eversion, plantar flexion, and dorsiflexion. Finally, the calculated torque values ​​at the ankle joint during inversion, eversion, plantar flexion, and dorsiflexion are displayed on the display 7. The bracket 8 is a flexible structure similar to a mobile phone holder, and its shape can be changed according to user needs to adjust the position of the display 7. Before measurement, the foot is fixed to the footrest using the first fixing strap 61, the second fixing strap 63, and the third fixing strap 62, ensuring that the foot fits snugly against each area to avoid measurement errors.

[0052] In summary, the ankle joint torque measuring device of the present invention includes a foot pedal unit, a sensing unit, a control unit, and a display unit. The ankle joint torque measuring device of the present invention can measure and evaluate the magnitude of the ankle joint torque and provide users with personalized guidance for active rehabilitation training. It has strong objectivity, and the evaluation results are relatively clear and intuitive. Patients can intuitively obtain the evaluation conclusion of the rehabilitation effect. Moreover, it can accurately obtain the torque value of the ankle joint when the foot is inverted, everted, dorsiflexed, or plantarflexed.

[0053] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. An ankle joint moment measuring device, characterized by, The ankle torque measuring device comprises: At least one foot pedal unit, the bottom of the foot pedal unit is provided with a sensing unit, the foot pedal unit comprises a heel area support plate, a first foot palm area support plate and a second foot palm area support plate, the first foot palm area support plate and the second foot palm area support plate are arranged at the front end of the heel area support plate, and the second foot palm area support plate is arranged in parallel with the first foot palm area support plate; At least one sensing unit is installed on the bottom plate, the heel area support plate, the first foot palm area support plate and the second foot palm area support plate are connected with the bottom plate through the sensing unit, and the sensing unit comprises at least three first sensors, at least three second sensors and at least three third sensors; At least three first sensors are arranged between the heel area support plate and the bottom plate; At least three second sensors are arranged between the first foot palm area support plate and the bottom plate; At least three third sensors are arranged between the second foot palm area support plate and the bottom plate; A control unit is connected with the sensing unit at one end, the first sensor, the second sensor and the third sensor are used for measuring the force of the foot on each area, the first sensor, the second sensor and the third sensor send the collected force signals to the controller, according to the value of each force sensor, the controller calculates the action point and the force of the foot on each area, and further calculates the torque value of the ankle joint when the foot is invaried, outvaried, plantar flexed and dorsiflexed; A display unit is connected with the other end of the control unit.

2. The ankle moment measuring device of claim 1, wherein: First fixing belts are installed at both ends of the heel area support plate, and the two first fixing belts are used for fixing the position of the heel.

3. The ankle moment measuring device of claim 1, wherein: A second fixing belt is installed at one end of the first foot palm area support plate, and a third fixing belt is installed at one end of the second foot palm area support plate, and the second fixing belt and the third fixing belt are used for fixing the position of the foot palm.

4. The ankle moment measuring device of claim 1, wherein: The sensing unit comprises one or more of a weighing sensor, a cantilever beam sensor, a tension and compression force sensor and a multi-dimensional force sensor.

5. The ankle moment measuring device of claim 1, wherein: The first sensor, the second sensor and the third sensor are not arranged on the same straight line.

6. The ankle moment measuring device of claim 1, wherein: The ankle torque measuring device further comprises a support, one end of the support is fixed on the bottom plate, and the other end of the support is provided with the display unit.

7. A device for measuring torque at the ankle according to claim 6, wherein: The display unit comprises a display, and the display is fixed on the support.

8. The ankle moment measuring device of claim 1, wherein: The control unit comprises a controller, and the controller is connected with the sensing unit and the display unit.

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