Upper limb assisted proprioception training device for patients with lower limb dysfunction

Abstract

An upper limb auxiliary proprioception training device for patients with lower limb dysfunction includes a base plate and a rear plate, and the rear plate is fixed to the rear end of the base plate; two leg support plates are provided on the base plate, and the two leg support plates are arranged side by side on the left and right, and the front end of each leg support plate is installed on the base plate through a hinge shaft, and the leg support plate can move around the hinge shaft at the front end, and each leg support plate is connected to a number of leg straps; in summary, the present invention can better exercise the patient's proprioception through the interaction between the upper and lower limbs, and autonomous control can avoid injuries during rehabilitation exercises, which is safer and saves the time and energy of nursing staff.

Description

Technical Field

[0001] The invention belongs to the technical field of rehabilitation training, and in particular relates to an upper limb auxiliary proprioception training device for patients with lower limb dysfunction. Background Art

[0002] Limb dysfunction refers to the weakening or loss of the original normal functions of the limbs. Normal people's limbs have motor and sensory functions. The function of the lower limbs is mainly to coordinate the trunk and upper limbs under the command of the brain to complete the movements of walking, jumping, running, and leaping. It can also make correct judgments on temperature, pain, limb position, etc. Limb dysfunction will occur when there is a brain disease, spinal cord disease, peripheral nerve damage, and limb trauma, such as limb sensory and motor dysfunction caused by trauma, difficulty walking or inability to walk, weakened limb strength, and the inability to correctly distinguish pain, temperature, position, etc.

[0003] Proprioception is the sensation of joints, limbs, movement and force, and refers to the sensation of deep structures such as muscles, tendons, joints and ligaments. It is the sensation of whether muscles are in a contracted or relaxed state, whether tendons and ligaments are stretched, and whether joints are in a bent or extended state. The deep sensation of the body and limbs is transmitted through the cell bodies of neurons, which are located in the spinal ganglia and distributed in the muscles, tendons and joints. Proprioception can be divided into three levels. The first level refers to the position sensation, movement sensation and weight-bearing sensation of muscles, tendons, ligaments and joints; the second level is the vestibular balance sensation and cerebellar motor coordination sensation; the third level is the comprehensive motor sensation of the cerebral cortex; the proprioception loss of patients with bone injuries is mainly the first level loss, the proprioception loss of patients with motor injuries is mainly the first and second level loss; the proprioception loss of patients with nerve injuries is mainly the third level loss.

[0004] Postoperative care and functional rehabilitation exercises for patients with lower limb dysfunction are very important. For example, passive activities and resistance training of the lower limbs are needed during the rehabilitation period to restore the patient's proprioception, thereby avoiding muscle loss, osteoporosis and joint contracture caused by long-term muscle relaxation. The rehabilitation exercises currently used in clinical practice mainly include auxiliary exercises by nursing staff (such as massage and passive stretching) and equipment exercises. Equipment exercises mostly passively stretch the patient's lower limbs or provide certain resistance training. Some equipment has massage or air pressure treatment functions. This type of equipment exercise relies on equipment for passive exercise and lacks the concept of interaction between the upper and lower limbs, resulting in poor proprioception training. Therefore, in view of the above situation, how to improve the existing rehabilitation exercises for lower limb function so that patients can control the exercises and combine them with proprioception exercises to achieve the purpose of restoring lower limb dysfunction has become a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The present invention aims to provide an upper limb auxiliary proprioception training device for patients with lower limb dysfunction, so as to solve the technical problem that existing equipment training devices can only perform simple passive training and cannot train proprioception.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: an upper limb auxiliary proprioception training device for patients with lower limb dysfunction, comprising a base plate and a rear plate body, the rear plate body being fixed to the rear end of the base plate; two leg support plates are provided on the base plate, the two leg support plates are arranged side by side on the left and right, and the front end of each leg support plate is mounted on the base plate through a hinge shaft, the leg support plate can move around the hinge shaft at the front end, and each leg support plate is connected to a plurality of leg straps;

[0007] An installation cavity is provided in the base plate, in which two sets of sprocket chain transmission pairs are installed. Each set of sprocket chain transmission pairs is driven by a forward and reverse motor. Two long holes are provided on the upper surface of the base plate. The two long holes are located below the two leg support plates respectively. The chains of the two sets of sprocket chain transmission pairs are respectively and parallelly located directly below the two long holes. A support block is fixed on the chain of each set of sprocket chain transmission pairs. The upper part of the support block passes through the long hole and is supported on the bottom surface of the leg support plate.

[0008] A chute is provided on the left and right sides of the base plate, a slider is provided in the chute, the slider can slide in the chute, and a first travel switch and a second travel switch are respectively provided at the front and rear ends of the chute;

[0009] A fixing clamp is installed at the bottom of the rear plate body, and a plurality of handle bolts are installed on the fixing clamp. Two rectangular grooves are provided on the rear side surface of the rear plate body, and a set of spring tension gauges is installed in each rectangular groove. The spring tension gauge includes a movable plate, and the movable plate can move left and right in the rectangular groove. A plurality of springs are connected between the movable plate and the inner wall of the rectangular groove. A sleeve is provided in the rectangular groove. A pull rope is connected to the movable plate, and the pull rope passes outward from the sleeve. The end of the pull rope connected to one group of spring tension gauges is connected to a left pull ring handle, and the end of the pull rope connected to the other group of spring tension gauges is connected to a right pull ring handle; the left pull ring handle and the right pull ring handle are provided with a start and stop switch for controlling the two groups of forward and reverse motors;

[0010] Guide pulley assemblies are provided at the left and right ends of the rear plate respectively. The two pull ropes are guided by the guide pulley assemblies and then wound around the left and right sides of the base plate, and the sliders on the left and right sides of the base plate are fixed on the two pull ropes respectively.

[0011] Furthermore, a middle pull ring handle is connected to the middle of the base plate.

[0012] Furthermore, a handgrip dynamometer is provided on both the left pull ring handle and the right pull ring handle.

[0013] Furthermore, a roller is rotatably mounted on the upper end of the support block, and the roller is supported on the bottom surface of the leg support plate.

[0014] Furthermore, hanging rings are provided on both the movable plate and the rectangular groove, and the spring is hung on the hanging rings.

[0015] Furthermore, wedge-shaped airbags are installed on both leg rests, and an air pump is provided in the base plate. The air pump is used to inflate and deflate the two wedge-shaped airbags. The left pull ring handle and the right pull ring handle are both provided with an inflation controller, which is connected to the air pump.

[0016] Furthermore, a silicone cushion is provided on the upper surface of the wedge-shaped airbag.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can drive the pull ropes on both sides to move by pulling the left pull ring handle and the right pull ring handle, and then the pull ropes pull the slider to move in the slide groove. After the slide groove contacts the first stroke switch, the forward and reverse motors are started to drive the sprocket chain transmission pair, and the chain transmission, so that the support block moves, making the leg support plate too high. After loosening the pull ring handle, the pull rope is reset under the action of the spring, the slider contacts the second stroke switch, the forward and reverse motors flip, and the leg support plate falls, finally realizing the upper limb force to lift the lower limb and achieve the feeling of interaction between the upper and lower limbs; in addition, a wedge-shaped airbag is provided, which can perform air pump therapy on the lower limbs to avoid pressure sores and promote blood circulation; the present invention can better exercise the patient's proprioception through the interaction between the upper and lower limbs, and autonomous control can avoid injuries during rehabilitation exercises, which is safer and saves time and energy of nursing staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic structural diagram of the upper limb auxiliary proprioception training device for patients with lower limb dysfunction of the present invention;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the installation of the support block and the sprocket chain transmission pair;

[0022] Figure 4 It is the rear side view of the rear plate. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The present invention is described in further detail below with reference to the examples.

[0025] like Figure 1-4 As shown, the present invention provides a specific embodiment 1 of an upper limb auxiliary proprioception training device for patients with lower limb dysfunction:

[0026] The device for assisting proprioception training of upper limbs for patients with lower limb dysfunction comprises a base plate 1 and a rear plate 2, wherein the rear plate 2 is fixed to the rear end of the base plate 1; two leg support plates 3 are provided on the base plate 1, and the two leg support plates 3 are used to place the patient's legs. The two leg support plates 3 are arranged side by side on the left and right, and the front end of each leg support plate 3 is mounted on the base plate 1 through a hinge shaft 4, and the leg support plate 3 can move around the hinge shaft 4 at the front end. A plurality of leg straps 5 are connected to each leg support plate 3, and the patient's legs can be fixed to the leg support plates 3 through the leg straps 5;

[0027] An installation cavity 6 is provided in the base plate 1, and two groups of sprocket chain transmission pairs 7 are installed in the installation cavity 6. Each group of sprocket chain transmission pairs 7 is driven by a forward and reverse motor 8. Two long holes 9 are provided on the upper surface of the base plate 1, and the two long holes 9 are correspondingly located below the two leg support plates 3. The chains of the two groups of sprocket chain transmission pairs 7 are respectively and parallelly located directly below the two long holes 9. A support block 10 is fixed on the chain of each group of sprocket chain transmission pairs 7, and the upper part of the support block 10 passes through the long hole 9 and is supported on the bottom surface of the leg support plate 3; the chain transmission of the sprocket chain transmission pair 7 drives the support block 10 to move in the long hole 9, thereby changing the supporting position of the support block 10 on the leg support plate 3, so that the leg support plate 3 rotates around the hinge shaft 4 under support at different positions, thereby realizing the lifting or falling of the leg support plate 3.

[0028] A chute 11 is provided on both the left and right sides of the base plate 1. A slider 12 is provided in the chute 11. The slider 12 can slide in the chute 11. A first travel switch 13 and a second travel switch 14 are provided at the front and rear ends of the chute 11, respectively. The first travel switch 13 and the second travel switch 14 are used in conjunction with each other to change the forward and reverse rotation of the forward and reverse motor 8.

[0029] A fixing clip 15 is installed at the bottom of the rear plate body 2, and a plurality of handle bolts 16 are installed on the fixing clip 15. Two rectangular grooves 17 are provided on the rear side surface of the rear plate body 2, and a set of spring tension gauges is installed in each rectangular groove 17. The spring tension gauge includes a movable plate 18, which can move left and right in the rectangular groove 17. A plurality of springs 19 are connected between the movable plate 18 and the inner wall of the rectangular groove 17. A sleeve 20 is provided in the rectangular groove 17, and a pull rope 21 is connected to the movable plate 18. The pull rope 21 passes outward from the sleeve 20. The end of the pull rope 21 connected to one group of spring tension gauges is connected to a left pull ring handle 22, and the end of the pull rope 21 connected to the other group of spring tension gauges is connected to a right pull ring handle 23; the left pull ring handle 22 and the right pull ring handle 23 are provided with start and stop switches for controlling the two groups of forward and reverse motors 8;

[0030] Guide pulley assemblies are provided at the left and right ends of the rear plate 2, respectively. The two pull ropes 21 are guided by the guide pulley assemblies and then wound around the left and right sides of the base plate 1, and the sliders 12 on the left and right sides of the base plate 1 are respectively fixed on the two pull ropes 21; the guide pulley assembly includes a pulley 24 and a roller 25. After the pull rope 21 passes through the sleeve 20, it is wound around the inner side of the roller from the outside of the roller 25. The coordinated use of the pulley 24 and the roller 25 changes the direction of the pull rope 21 while preventing the pull rope 21 from falling out.

[0031] When the upper limb auxiliary proprioception training device for patients with lower limb dysfunction of this embodiment is used, it mainly simulates the movement of pulling or moving the upper limbs to the upper limbs, so as to achieve proprioception training. Specifically, the device is installed on the bed through the fixing clamp 15 and the top pressure bolt, and then the patient's legs are placed on the leg support board 3 and fixed with the leg strap 5. Then the start-stop switch is pressed to start the two sets of forward and reverse motors 8. The patient pulls the left pull ring handle 22 and the right pull ring handle 23 with both hands. The right pull ring handle 23 pulls the movable plate 18 through the pull rope 21. The movable plate 18 stretches the spring 19. Under the pull of the pull rope 21, the slider 12 moves in the slide groove 11 and contacts the first stroke switch 13. At this time, the forward and reverse motor 8 works, and the forward and reverse motor 8 drives the sprocket chain transmission pair 7. The chain starts to transmit. Under the action of spring 19, the support block 10 moves along the long hole 9, thereby changing the position of the support block 10 supported on the leg support board 3, so that the leg support board 3 is lifted, and then under the pulling of spring 19, the patient keeps holding the right pull ring handle 23 and moves, and at this time the slider 12 moves driven by the pull rope 21, and finally the slider 12 contacts the second stroke switch 14, the forward and reverse motor 8 starts to flip, and then drives the chain in reverse transmission, the support block 10 moves in the other direction, and then the leg support board 3 falls; the same as the right pull ring handle 23 on the right side, the left pull ring handle 22 on the left side is also installed with the above method for operation, and finally the patient pulls the right pull ring handle 23 and the left pull ring handle 22 with both hands respectively to achieve the lifting and falling of the leg support board 3, exercise the patient's legs, and promote the recovery of proprioception function.

[0032] In addition, in the above steps, since there is sliding friction between the support block 10 and the leg support plate 3 during the movement of the support block 10, the friction force is relatively large. In order to reduce the friction force, a roller 26 is rotatably installed at the upper end of the support block 10. The roller 26 is supported on the bottom surface of the leg support plate 3. There is rolling friction between the roller 26 and the leg support plate 3, which greatly reduces the friction force and makes the movement of the support block 10 smoother and more labor-saving.

[0033] In this embodiment, a middle pull ring handle 27 may be connected to the middle of the base plate 1. When training one leg, the pull ring handle on one side and the middle pull ring handle 27 may be pulled. The middle pull ring handle 27 provides balance for training.

[0034] Secondly, a handgrip dynamometer is provided on both the left pull ring handle 22 and the right pull ring handle 23, and the patient can train the hand gripping ability through the handgrip dynamometer.

[0035] In addition, since the spring dynamometer contains several springs 19, different patients have different arm tensions, so the number of springs 19 can be increased or decreased according to the patient's condition. The specific structure is that hanging rings 28 are provided on the movable plate 18 and the rectangular groove 17, and the springs 19 are hung on the hanging rings 28. The springs 19 can be easily removed from the hanging rings 28, which facilitates the adjustment of the number of springs 19.

[0036] Specific embodiment 2 of the upper limb auxiliary proprioception training device for patients with lower limb dysfunction provided by the present invention:

[0037] The difference between this embodiment and embodiment 1 is that wedge-shaped airbags 29 are installed on the two leg support plates 3, and an air pump is provided in the base plate 1, which is used to inflate and deflate the two wedge-shaped airbags 29. The left pull ring handle 22 and the right pull ring handle 23 are both provided with an inflation controller, which is connected to the air pump.

[0038] The inflation controller controls the air pump to inflate and deflate. After inflation, the wedge-shaped airbag 29 opens, elevating the distal end of the lower limb and promoting blood circulation in the lower limb. The inflation controller can also control the air pump to inflate intermittently, for example, inflating and deflating at regular intervals, allowing the lower limb to be intermittently raised or lowered, thereby providing a therapeutic effect of air pressure therapy on the lower limb. A silicone cushion can also be provided on the upper surface of the wedge-shaped airbag 29 to enhance user comfort.

[0039] It should be noted that, in this document, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An upper limb proprioception training device for patients with lower limb dysfunction, characterized by: The saddle comprises a base plate and a rear plate body, wherein the rear plate body is fixed to the rear end of the base plate; two leg support plates are provided on the base plate, and the two leg support plates are arranged side by side on the left and right sides, and the front end of each leg support plate is mounted on the base plate through a hinge shaft, and the leg support plate can move around the hinge shaft at the front end, and each leg support plate is connected to a plurality of leg straps; An installation cavity is provided in the base plate, in which two sets of sprocket chain transmission pairs are installed. Each set of sprocket chain transmission pairs is driven by a forward and reverse motor. Two long holes are provided on the upper surface of the base plate. The two long holes are located below the two leg support plates respectively. The chains of the two sets of sprocket chain transmission pairs are respectively and parallelly located directly below the two long holes. A support block is fixed on the chain of each set of sprocket chain transmission pairs. The upper part of the support block passes through the long hole and is supported on the bottom surface of the leg support plate. A chute is provided on the left and right sides of the base plate, a slider is provided in the chute, the slider can slide in the chute, and a first travel switch and a second travel switch are respectively provided at the front and rear ends of the chute; A fixing clamp is installed at the bottom of the rear plate body, and a plurality of handle bolts are installed on the fixing clamp. Two rectangular grooves are provided on the rear side surface of the rear plate body, and a set of spring tension gauges is installed in each rectangular groove. The spring tension gauge includes a movable plate, and the movable plate can move left and right in the rectangular groove. A plurality of springs are connected between the movable plate and the inner wall of the rectangular groove. A sleeve is provided in the rectangular groove. A pull rope is connected to the movable plate, and the pull rope passes outward from the sleeve. The end of the pull rope connected to one group of spring tension gauges is connected to a left pull ring handle, and the end of the pull rope connected to the other group of spring tension gauges is connected to a right pull ring handle; the left pull ring handle and the right pull ring handle are provided with a start and stop switch for controlling the two groups of forward and reverse motors; Guide pulley assemblies are provided at the left and right ends of the rear plate respectively. The two pull ropes are guided by the guide pulley assemblies and then wound around the left and right sides of the base plate, and the sliders on the left and right sides of the base plate are fixed on the two pull ropes respectively.

2. The upper limb auxiliary proprioception training device for patients with lower limb dysfunction according to claim 1, characterized in that: A middle pull ring handle is connected to the middle of the base plate.

3. The upper limb auxiliary proprioception training device for patients with lower limb dysfunction according to claim 2, characterized in that: A handgrip dynamometer is provided on both the left pull ring handle and the right pull ring handle.

4. The upper limb auxiliary proprioception training device for patients with lower limb dysfunction according to claim 3, characterized in that: A roller is rotatably mounted on the upper end of the support block, and the roller is supported on the bottom surface of the leg support plate.

5. The upper limb auxiliary proprioception training device for patients with lower limb dysfunction according to claim 4, characterized in that: Hanging rings are provided on both the movable plate and the rectangular groove, and the springs are hung on the hanging rings.

6. The upper limb auxiliary proprioception training device for patients with lower limb dysfunction according to claim 1, characterized in that: Wedge-shaped air bags are installed on both leg support plates, and an air pump is provided in the base plate for inflating and deflation of the two wedge-shaped air bags. The left pull ring handle and the right pull ring handle are both provided with an inflation controller, which is connected to the air pump.

7. The upper limb auxiliary proprioception training device for patients with lower limb dysfunction according to claim 6, characterized in that: The upper surface of the wedge-shaped airbag is provided with a silicone cushion.

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