TWI831678B - A rehabilitation device and a knee joint exercise and rehabilitation device - Google Patents

Abstract

A rehabilitation device and a knee joint exercise and rehabilitation device are disclosed. The knee joint exercise and rehabilitation device comprises: a lifting mechanism comprising a linkage rod and a motor, wherein the linkage rod is driven to rotate in a forward or reverse direction by the motor so as to raise or lower the height of a movable end of the linkage rod; a guide frame, one side of the guide frame is pivotally connected to the movable end of the linkage rod and the other side of the guide frame has a guide slot; and a sliding plate sliding on the guide slot of the guide frame by at least one guide wheel, whereby when the movable end of the linkage rod is raised or lowered in height, the sliding plate can be moved along the guide slot by synchronously pushing of the leg of the user against the sliding plate, and the guide frame can be rotated synchronously with the posture of the leg of the user when raising or lowering the height.

Description

Rehabilitation devices and knee joint exercise and rehabilitation devices

The present invention relates to a rehabilitation device, in particular to a rehabilitation device and a knee joint movement and rehabilitation device.

With the development of modern medicine, people are paying more and more attention to reconstructive treatment after surgery or sports injuries. Rehabilitation treatment is usually diagnosed by a doctor and then treated by a physiotherapist. The physiotherapist will treat the affected part of the limb of the rehabilitator with bare hands or using various therapeutic aids to guide the rehabilitator to make periodic rehabilitation. movements to induce the original autonomous ability of the affected part of the limb to recover. Traditional rehabilitation therapy uses audio tapes or CDs to repeatedly play instructions, such as one up and two down, to guide the rehabilitation patient to operate treatment aids or perform periodic rehabilitation actions according to the instructions. However, it is only observed with the naked eye and It is impossible to grasp the results of rehabilitation in a timely manner. In addition, although there is Taiwan patent TWI646996, the wearable rehabilitation device can be placed on the affected part of the limb of the rehabilitator, and the distance measurement unit can real-time measure the distance between the rehabilitator and the reflection device while the rehabilitator is performing rehabilitation exercises. distance, and correspondingly transmits the distance sensing data to the central processing unit, and the central processing unit calculates the actual displacement of the distance measuring unit relative to the reflective device, and then transmits it to the mobile device through the wireless transmission unit and displays it in the user interface The difference between the actual displacement and the predetermined displacement. Although there are also rehabilitation medical devices on the market that use biological feedback or image feedback, However, these rehabilitation medical devices are bulky and expensive, making them difficult to be widely used. However, these methods require the user to actively exercise to achieve the effect. Therefore, if the user's muscle mass is insufficient to actively exercise or the user has insufficient exercise perseverance, the expected exercise and rehabilitation effects cannot be achieved.

In view of the above-mentioned problems in the conventional art, one object of the present invention is to provide a knee joint movement and rehabilitation device to solve the problems of traditional rehabilitation devices.

In order to achieve the aforementioned purpose, the present invention proposes a knee joint movement and rehabilitation device, which includes: a lifting mechanism, including a linkage rod and a motor. The linkage rod is driven by the motor to rotate forward or reversely to lift or Lower the height of a movable end of the linkage rod; a guide rail frame, one side of the guide rail frame is pivotably connected to the movable end of the linkage rod, the other side of the guide rail frame has a guide groove; and a sliding plate , for the user's legs to rest against the sliding plate, which is slidably provided on the guide groove of the guide rail frame through at least one guide wheel, whereby when the movable end of the linking rod is lifted or When the height is lowered, the sliding plate is synchronously pushed by the user's legs against the sliding plate to move along the guide groove, and the guide rail frame is pushed by the user against the sliding plate. The posture of the legs rotates synchronously when raising or lowering the height.

The lifting mechanism further includes a worm gear and a worm, wherein the worm is driven by the motor to drive the worm gear to rotate, and a fixed end of the linking rod is connected to the worm gear, and is rotated in the forward direction by the rotation of the worm gear. Or rotate in the opposite direction to raise or lower the height of the movable end of the linkage rod.

The motor is installed on a base, and the base is movably placed under a chair.

The motor is installed on a base, and the base is fixedly or detachably installed on the leg of a chair.

The base is provided with a counterweight device.

The one side of the guide rail frame is pivotally connected to the movable end of the linking rod via a pivot axis.

A rehabilitation device includes two knee joint movement and rehabilitation devices, wherein the knee joint movement and rehabilitation devices operate independently of each other.

A rehabilitation device includes two knee joint motion and rehabilitation devices and a connecting rod connected between the worm gears in the knee joint motion and rehabilitation devices, so that the knee joint motion and rehabilitation devices The linkage rods operate synchronously.

The movable ends of the linkage rods operate synchronously in opposite directions to respectively raise or lower the height.

The movable ends of the linking rods operate synchronously in the same direction, thereby raising or lowering the height at the same time.

The number of the motors is one or two.

Based on the above, the rehabilitation device and the knee joint movement and rehabilitation device according to the present invention may have one or more of the following advantages:

(1) By raising or lowering the movable end of the linkage rod through the lifting device, the guide rail frame and the sliding plate can be raised and lowered, so that the user's legs against the sliding plate can be raised or lowered to reach the legs/knees rehabilitation purposes.

(2) When the linking rod is raised and lowered, the sliding plate will move synchronously along the guide groove of the guide rail frame in accordance with the user's leg posture, thus effectively reducing the resistance exerted on the knee joint during the leg raising process.

(3) Through the lifting mechanism with worm gear and worm screw design, combined with the operation of the motor, the user can effectively perform leg lifting movements according to the setting mode of the motor to exercise and rehabilitate the knee joint.

In order to enable Jun Shen to have a further understanding of the technical features and technical effects of the present invention, preferred embodiments and accompanying detailed descriptions are provided below.

10: Lifting mechanism

12: Worm gear

14:Worm

16: Linking rod

161: Fixed end

162:Active end

20: Motor

22:Rotating axis

30: Guide rail frame

32:Guide groove

34: Pivot axis

40:Sliding board

50: guide wheel

60: base

62: Counterweight device

70:Chair

72: Chair legs

74: Bearing frame

80:Connecting rod

Figure 1 is a schematic cross-sectional structural view of the knee joint movement and rehabilitation device of the present invention.

Figure 2 is a schematic diagram of the sliding plate moving to the right along the guide groove in the present invention, in which (a) is a top view and (b) is a cross-sectional side view.

Figure 3 is a schematic diagram of the sliding plate moving to the left along the guide groove in the present invention, in which (a) is a top view and (b) is a cross-sectional side view.

4 and 5 are schematic diagrams of the use of the knee joint movement and rehabilitation device of the present invention.

6 and 7 are schematic diagrams of the use of another aspect of the knee joint movement and rehabilitation device of the present invention.

Figures 8 and 9 are schematic diagrams of the use of another aspect of the knee joint movement and rehabilitation device of the present invention.

Figure 10 is a schematic diagram of the use of another aspect of the knee joint movement and rehabilitation device of the present invention.

In order to facilitate understanding of the technical features, content and advantages of this creation and the effects it can achieve, this creation is described in detail below with the drawings and in the form of expressions of embodiments, and the terms used therein are described below. The purpose of the drawings is only for illustration and auxiliary instruction, and may not represent the actual proportions and precise configurations of this creation after implementation. Therefore, the proportions and configuration relationships of the attached drawings should not be interpreted or limited to the actual implementation of this creation. scope of rights. In addition, to facilitate understanding, the same elements in the following embodiments are labeled with the same symbols for explanation.

In addition, unless otherwise noted, the terms used throughout the specification and patent application generally have the ordinary meanings of each term used in the field, the content disclosed herein, and the specific content. Certain terms used to describe the invention are discussed below or elsewhere in this specification to provide those skilled in the art with additional guidance in describing the invention.

The use of "first", "second", "third", etc. in this article does not specifically refer to the order or sequence, nor is it used to limit the present invention. It is only used to distinguish components described by the same technical terms. Or just an operation.

Secondly, if the words "include", "includes", "have", "contains", etc. are used in this article, they are all open terms, which means including but not limited to.

Please refer to Figures 1 to 3. Figure 1 is a schematic cross-sectional structural diagram of the knee joint movement and rehabilitation device of the present invention; Figure 2 is a schematic diagram of the sliding plate moving to the right along the guide groove of the present invention, in which (a) is the upper (b) is a cross-sectional side view; Figure 3 is a schematic diagram of the sliding plate moving to the left along the guide groove in the present invention, in which (a) is a top view and (b) is a cross-sectional side view.

The knee joint movement and rehabilitation device of the present invention includes: a lifting mechanism 10, including a worm gear 12, a worm 14 and a linkage rod 16. The worm 14 is driven by a motor 20 to drive the worm gear 12 to rotate. The fixed end 161 of the rod 16 is connected to the worm gear 12, and rotates forward or reverse by the rotation of the worm gear 12 to raise or lower the height of the movable end 162 of the linking rod 16; a guide rail frame 30, one side of the guide rail frame 30 It is rotatably connected to the movable end 162 of the linking rod 16, and the other side of the guide rail frame 30 has a guide groove 32; And a sliding plate 40, the sliding plate 40 is slidably disposed on the guide groove 32 of the guide rail frame 30 through at least one guide wheel 50, whereby when the movable end 162 of the linking rod 16 is raised or lowered, the sliding plate 40 can be resisted. The user's legs leaning on the sliding plate 40 are pushed synchronously to move along the guide groove 32 and the guide rail frame 30 can follow the posture of the user's legs leaning on the sliding plate 40 when the height is raised or lowered. Rotate synchronously.

As shown in Figures 4 and 5, when the motor 20 operates and drives the movable end 162 of the linking rod 16 to lift, the user's legs that are against the sliding plate 40 will be lifted accordingly, and because the guide rail frame 30 is The guide rail frame 30 is pivotally connected to the movable end 162 of the linking rod 16 (for example, the guide rail frame 30 is pivotally connected to the movable end 162 of the linking rod 16 via the pivot shaft 34). Therefore, the guide rail frame 30, which was originally parallel to the linking rod 16, will now The pivot axis 34 is used as the rotation center and forms an included angle with the linkage rod 16 (see Figure 4). As the movable end 162 of the linking rod 16 is lifted to the highest position, the angle between the guide rail frame 30 and the linking rod 16 changes accordingly. For example, if the linking rod 16 is lifted to a horizontal state, the guide rail frame 30 It can also be in a horizontal state (as shown in Figure 5). Since the user's legs are always against the sliding plate 40 during the lifting process, the sliding plate 40 will move synchronously along the guide groove 32 of the guide rail frame 30 in accordance with the user's leg posture (for example, as shown in FIG. 5 (swipe to the right). Therefore, when the user uses the present invention to lift the leg/knee to perform rehabilitation exercises, the resistance to the knee joint can be effectively reduced.

In the present invention, the motor 20 can also be disposed on a base 60, for example. As shown in FIGS. 6 and 7 , the motor 20 is disposed on the base 60 , and the base 60 can be movably placed under a chair 70 , for example. Therefore, the user can place the knee joint movement and rehabilitation device of the present invention together with the motor 20 and the base 60 under the chair 70 to facilitate rehabilitation/exercise use, and only needs to move the position of the base 60 or the chair 70, that is, Can be placed under another chair instead. In addition, the base 60 may be provided with a counterweight device 62, such as a counterweight block, and the position of the counterweight device 62 on the base 60 is preferably at a lower point of the overall center of gravity (for example, adjacent to the bottom of the base 60). Thus, by providing the counterweight device 62, the weight of the overall structure can be reduced. The central position enhances the stability of the overall structure and can also avoid danger caused by tipping when the knee joint movement and rehabilitation device of the present invention is in operation.

In addition to placing the base 60 directly under the chair 70 as described above, the base 60 can also be fixedly or detachably mounted on the legs 72 of a chair 70 . In addition, the motor 20 together with the knee joint movement and rehabilitation device of the present invention can also be installed on the chair 70 by providing an additional bearing frame 74 on the chair leg 72 (see Figures 8 and 9). And the carrying frame 74 can be fixed or adjustable and arranged on the chair legs 72 of the chair 70 . Therefore, the user can adjust the height of the carrying frame 74 by changing the contact position between the carrying frame 74 and the chair legs 72 . The height of the knee joint exercise and rehabilitation device of the present invention relative to the chair 70 is adapted to users of different heights/leg lengths.

In the present invention, the rehabilitation device has, for example, two knee joint movement and rehabilitation devices that operate independently of each other. Or the rehabilitation device may have, for example, two knee joint movement and rehabilitation devices that operate synchronously. For example, as shown in Figure 2, a connecting rod 80 can be additionally provided. The connecting rod 80 is connected between the two worm gears 12 in the two knee joint motion and rehabilitation devices, so that the two knee joints can move and the two worm gears 12 in the rehabilitation device. The two linkage rods 16 operate synchronously (in the same direction or in opposite directions). In addition, the connecting rod 80 can also stabilize the two linking rods 16 to prevent them from shaking.

The two movable ends 162 of the two linkage rods 16 can, for example, operate synchronously in the same direction, thereby raising or lowering the height at the same time. Alternatively, the two movable ends 162 of the two linking rods 16 can also operate synchronously in opposite directions, so as to respectively raise or lower the height. For example, by providing a motor 20 and cooperating with the connecting rod 80 and the worm 14 to drive the worm gear 12, the two linking rods 16 can be operated in the same direction synchronously (for example, lifted upward at the same time). Alternatively, a motor 20 is provided to change the action mode of one of the worm gears 14 to drive the worm gear 12 (for example, changing the gear contact direction of the worm gear 12 and the worm gear 14 so that it is opposite to that of the other set of worm gears 12 and worm gears 12 ). The gear contact direction of the worm 14), and then selectively cooperate with the operation of the connecting rod 80, can allow the two linking rods 16 to operate in opposite directions synchronously (for example, one of the linking rods 16 rises upward, while the other linking rod 16 descends) .

In addition, two motors 20 can also be provided to cooperate with the connecting rod 80 and the worm 14 to drive the worm gear 12 to operate, so that the two linking rods 16 can operate in the same direction synchronously (for example, lift upward at the same time). Alternatively, by arranging two motors 20 and designing the running directions of the motors 20 to be opposite, and cooperating with the connecting rod 80 and the worm 14 to drive the worm gear 12, the two linking rods 16 can be operated in the same and opposite directions synchronously (for example, one of the linking rods 16 Lift upward, while the other linkage rod 16 descends). Since those with ordinary knowledge should understand how to make the two movable ends 162 move in the same direction or in opposite directions through the disclosure of the present invention, no further description will be given.

To sum up, the knee joint movement and rehabilitation device of the present invention can have one or more of the following advantages: (1) The movable end of the linking rod is raised or lowered by the lifting device, which can drive the guide rail frame and slide The lifting height of the board allows the user's legs against the sliding board to be raised or lowered to achieve the purpose of leg/knee rehabilitation. (2) When the linking rod is raised and lowered, the sliding plate will move synchronously along the guide groove of the guide rail frame in accordance with the user's leg posture, thus effectively reducing the resistance exerted on the knee joint during the leg raising process. (3) Through the lifting mechanism with worm gear and worm screw design, combined with the operation of the motor, the user can effectively perform leg lifting movements according to the setting mode of the motor to exercise and rehabilitate the knee joint.

FIGS. 1 to 9 of the present invention illustrate an implementation in which the motor 20 indirectly drives the linking rod 16 to rotate forward or reversely through the worm gear 12 and the worm 14 . However, the present invention is not limited thereto. Please refer to FIG. 10 . The knee joint movement and rehabilitation device of the present invention may also omit the worm gear 12 and the worm 14 , and the linking rod 16 may be directly driven by the motor 20 to rotate forward or reverse. . That is to say, the knee joint movement and rehabilitation device of the present invention includes: a linking rod 16 and a motor 20. The linking rod 16 is driven by the motor 20 to rotate forward or reverse to raise or lower the linking rod 16. The height of the end 162; a guide rail frame 30; and a sliding plate 40, whereby the linkage rod 16 can rotate forward or reversely through direct driving of the motor 20. due to, The embodiment shown in Figure 10 is essentially the same as the aforementioned embodiment shown in Figures 1 to 9. The only difference lies in that the fixed end 161 of the linkage rod 16 in the embodiment shown in Figure 10 is directly connected to the rotating shaft 22 of the motor 20. It is directly driven by the motor 20 to rotate forward or reversely, so no further description will be given here. In addition, in the embodiments shown in FIGS. 1 to 10 of the present invention, the motor can be a motor with a reduction gear set, a servo motor or other suitable types to provide the required rotational speed to drive the linking rod 16 in forward or reverse direction. Turn.

The above is only illustrative and not restrictive. Any equivalent modifications or changes that do not depart from the spirit and scope of the present invention shall be included in the appended patent scope.

10: Lifting mechanism

12: Worm gear

14:Worm

16: Linking rod

161: Fixed end

162:Active end

20: Motor

30: Guide rail frame

32:Guide groove

34: Pivot axis

40:Sliding board

50: guide wheel

Claims (10)

A knee joint movement and rehabilitation device, including: a lifting mechanism, including a linkage rod and a motor. The linkage rod is driven by the motor and rotates in the forward or reverse direction to raise or lower the movable end of the linkage rod. the height; a guide rail frame, one side of the guide rail frame is pivotably connected to the movable end of the linking rod, and the other side of the guide rail frame has a guide groove; and a sliding plate for the user's legs The sliding plate is slidably disposed on the guide groove of the guide rail frame through at least one guide wheel, whereby when the movable end of the linking rod is raised or lowered, the sliding plate is The guide rail frame is moved along the guide groove by being pushed synchronously by the user's legs against the sliding plate, and the guide rail frame is raised or lowered by the user's legs against the sliding plate. The height and posture rotate synchronously. The knee joint movement and rehabilitation device of claim 1, wherein the lifting mechanism further includes a worm gear and a worm, wherein the worm is driven by the motor to drive the worm gear to rotate, and a fixed end of the linkage rod It is connected to the worm gear and rotates forward or reverse by the rotation of the worm gear to raise or lower the height of the movable end of the linking rod. The knee joint movement and rehabilitation device as claimed in claim 1, wherein the motor is installed on a base, and the base is movably placed under a chair. The knee joint movement and rehabilitation device as claimed in claim 1, wherein the motor is installed on a base, and the base is fixedly or detachably installed on the leg of a chair. The knee joint movement and rehabilitation device as described in claim 3 or 4, wherein the base is provided with a counterweight device. The knee joint movement and rehabilitation device as claimed in claim 1, wherein the side of the guide rail frame is pivotally connected to the movable end of the linking rod via a pivot axis. A rehabilitation device includes two knee joint movement and rehabilitation devices as described in claim 1, wherein the knee joint movement and rehabilitation devices operate independently of each other. A rehabilitation device, including two knee joint motion and rehabilitation devices as described in claim 2 and a connecting rod connected between the worm gears in the knee joint motion and rehabilitation devices, so that the knee joints The linkage rods in the sports and rehabilitation device operate synchronously. The rehabilitation device as described in claim 7 or 8, wherein the movements of the knee joints and the movable ends of the linking rods of the rehabilitation device operate in reverse synchronization, thereby respectively raising or lowering the height. The rehabilitation device as described in claim 7 or 8, wherein the knee joint movements and the movable ends of the linkage rods of the rehabilitation device operate synchronously in the same direction, thereby raising or lowering the height at the same time.