Auxiliary walking protector for paralytic

Abstract

The utility model provides an auxiliary walking protector for a stroke patient, which comprises a knee sheath, an electrical stimulation module arranged on the knee sheath, an ankle support, a first support rod for connecting the knee sheath and the ankle support, and a clamping component arranged on the first support rod, the clamping assembly comprises a supporting block fixedly connected to the first supporting rod, two clamping rods oppositely arranged at the two ends of the supporting block, an arc-shaped plate, an elastic piece connecting the clamping rods and the arc-shaped plate and a driving structure driving the two clamping rods to move relatively, the arc-shaped plate is arranged close to one face of the knee sheath, and the driving structure is electrically connected with the electrical stimulation module. And the driving structure drives the two clamping rods to be relatively close to each other, so that the arc-shaped plate is propped against the knee sheath. The electrical stimulation module is closer to the body of a patient, and the arc-shaped plate can clamp the knee sheath during each movement, so that the problem that the knee sheath falls off when the knee rotates can be effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation equipment technology, and in particular to an assistive walking brace for stroke patients. Background Technology

[0002] Stroke patients typically experience hemiplegia and weakness in their legs when walking. Therefore, they can use assistive walking devices, which use electrical stimulation to stimulate the nerves in the patient's legs to help them walk.

[0003] In existing technologies, a brace is typically worn around the knee, and the electrical stimulation module is placed inside the brace. However, when patients walk, in order to prevent the brace from being too tight around the knee and affecting breathability and walking, the brace is tied slightly loosely. This causes the electrical stimulation module to be unable to deliver electrical stimulation to the leg most efficiently, affecting the stimulation effect. At the same time, because the brace is tied slightly loosely, there is a risk that the brace will slip off while walking, causing the electrical stimulation module to move away from the optimal stimulation point, which also affects the stimulation effect. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an assistive walking brace for stroke patients, which aims to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] An assistive walking brace for stroke patients includes a knee brace, an electrical stimulation module disposed on the knee brace, an ankle support, a first support rod connecting the knee brace and the ankle support, and a clamping assembly disposed on the first support rod. The clamping assembly includes a support block fixed to the first support rod, two clamping rods disposed opposite each other at both ends of the support block, an arc-shaped plate, an elastic element connecting the clamping rods and the arc-shaped plate, and a driving structure for driving the two clamping rods to move relative to each other. The side of the arc-shaped plate close to the knee brace is provided, and the driving structure drives the two clamping rods to move closer to each other so that the arc-shaped plate presses against the knee brace.

[0007] According to one aspect of the above technical solution, the elastic element includes a connecting rod and a spring located on the outer cylindrical surface of the connecting rod. A sliding hole is provided on the clamping rod. One end of the connecting rod is fixedly connected to the arc-shaped plate, and the other end is slidably disposed in the sliding hole. The two ends of the spring are fixedly connected to the arc-shaped plate and the clamping rod, respectively.

[0008] According to one aspect of the above technical solution, the support block has sliding grooves at both ends for the clamping rod to slide, and the driving structure drives the clamping rod to slide along the sliding grooves.

[0009] According to one aspect of the above technical solution, the driving structure includes a bidirectional cylinder disposed inside the support block, the bidirectional cylinder including a cylinder body and two telescopic rods respectively connected to the two clamping rods.

[0010] According to one aspect of the above technical solution, the first support rod includes an adjustment block fixed to the knee brace, a rod body sliding along the adjustment block, and a fixing structure for fixing the adjustment block and the rod body. The support block is fixed to the adjustment block, and the rod body is rotatably connected to the ankle support.

[0011] According to one aspect of the above technical solution, the electrical stimulation module includes a processor mounted on the outer side of the knee brace and a matrix electrode mounted on the inner side of the knee brace, wherein the matrix electrode is electrically connected to the processor.

[0012] According to one aspect of the above technical solution, the assistive walking brace for stroke patients also includes an electromyography (EMG) sensor installed on the ankle support. The EMG sensor is used to detect EMG signals in the patient's lower leg, and the EMG sensor is electrically connected to the processor.

[0013] According to one aspect of the above technical solution, the assistive walking brace for stroke patients also includes a lumbar support and a second support rod, the two ends of which are rotatably connected to the lumbar support and the knee support, respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] By setting a clamping component on the first support rod connecting the knee brace and the ankle support, the positions of the clamping component and the knee brace are always relatively fixed. When the patient walks, the two clamping rods can be moved relative to each other on the support block by a drive structure. For example, before the electrical stimulation module emits electrical stimulation, it can first send an electrical signal to the drive structure, causing the drive structure to drive the two clamping rods to move the arc plate closer together through the elastic element. Since the knee brace is made of flexible material, the arc plate will clamp the knee brace, making the knee brace and the electrical stimulation module closer to the patient's body, improving the efficiency of electrical stimulation. At the same time, the arc plate will hold the knee brace with each movement, which can effectively prevent the knee brace from falling off when the knee rotates. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the assistive walking brace for stroke patients in an embodiment of this utility model;

[0017] Figure 2 for Figure 1 A structural diagram of the knee brace from a first-person perspective;

[0018] Figure 3 for Figure 1 A schematic diagram of the knee brace from a second-person perspective;

[0019] Figure 4 for Figure 1 Structural schematic diagram of the clamping assembly;

[0020] Figure 5 for Figure 4 Exploded view of the structure at the middle clamping rod;

[0021] Explanation of key component symbols:

[0022] Knee brace 10 Ankle brace 20 First support rod 30 lumbar support 40 Second support rod 50 Clamping assembly 60 Electrical stimulation module 70 support block 11 Clamping rod 12 rod 31 Adjustment block 32 electromyography (EMG) sensor 80 processor 71 Matrix electrodes 72 Slide chute 13 curved plate 14 elastic element 15 Cylinder block 17 telescopic pole 18 sliding hole 19 Connecting rod 151 spring 152

[0023] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please see Figures 1 to 5The image shows an assistive walking brace for stroke patients according to an embodiment of the present invention. It is characterized by comprising a knee brace 10, an electrical stimulation module 70 disposed on the knee brace 10, an ankle support 20, a first support rod 30 connecting the knee brace 10 and the ankle support 20, and a clamping assembly 60 disposed on the first support rod 30. The clamping assembly 60 includes a support block 11 fixed to the first support rod 30, two clamping rods 12 disposed opposite to each other at both ends of the support block 11, an arc-shaped plate 14, an elastic element 15 connecting the clamping rods 12 and the arc-shaped plate 14, and a driving structure for driving the two clamping rods 12 to move relative to each other. The side of the arc-shaped plate 14 closest to the knee brace 10 is disposed. The driving structure is electrically connected to the electrical stimulation module 70. The driving structure drives the two clamping rods 12 to move closer together, so that the arc-shaped plate 14 presses against the knee brace 10.

[0028] Understandably, by providing a clamping component 60 on the first support rod 30 connecting the knee brace 10 and the ankle support 20, the present invention ensures that the positions of the clamping component 60 and the knee brace 10 are always relatively fixed. When the patient walks, the two clamping rods 12 can be moved relative to each other on the support block 11 by a drive structure. For example, before the electrical stimulation module 70 emits electrical stimulation, it can first send an electrical signal to the drive structure, causing the drive structure to drive the two clamping rods 12 to move the arc plate 14 closer together through the elastic element 15. Since the knee brace 10 is made of flexible material, the arc plate 14 will clamp the knee brace 10, making the knee brace 10 move the electrical stimulation module 70 closer to the patient's body, improving the efficiency of electrical stimulation. At the same time, the arc plate 14 will clamp the knee brace 10 during each movement, which can effectively prevent the knee brace 10 from falling off when the knee rotates.

[0029] Specifically, in this embodiment, the elastic element 15 includes a connecting rod 151 and a spring 152 located on the outer cylindrical surface of the connecting rod 151. The clamping rod 12 has a sliding hole 19. One end of the connecting rod 151 is fixedly connected to the arc plate 14, and the other end is slidably disposed in the sliding hole 19. The two ends of the spring 152 are fixedly connected to the arc plate 14 and the clamping rod 12, respectively.

[0030] Understandably, when the two clamping rods 12 are close to each other, the arc plate 14 contacts the knee sleeve 10. Based on the reaction force, the arc plate 14 will move towards the clamping rods 12 through the connecting rod 151, and the spring 152 will be compressed. This design structure can prevent the arc plate 14 from being under excessive pressure and causing damage to the knee.

[0031] Furthermore, the support block 11 has sliding grooves 13 at both ends for the clamping rods 12 to slide along the sliding grooves 13, and the driving structure drives the clamping rods 12 to slide along the sliding grooves 13; the driving structure includes a bidirectional cylinder inside the support block 11, the bidirectional cylinder includes a cylinder body 17 and two telescopic rods 18 respectively connected to the two clamping rods 12.

[0032] Understandably, when it is necessary to bring the two clamping rods 12 closer together, the bidirectional cylinder can be activated, and the two telescopic rods 18 can drive the two clamping rods 12 to move closer together synchronously along the sliding groove 13. The bidirectional cylinder can be electrically connected to the electrical stimulation module 70.

[0033] Furthermore, the first support rod 30 includes an adjustment block 32 fixed to the knee sleeve 10, a rod 31 sliding along the adjustment block 32, and a fixing structure for fixing the adjustment block 32 and the rod 31. The support block 11 is fixed to the adjustment block 32, and the rod 31 is rotatably connected to the ankle support 20.

[0034] Understandably, in order to ensure the relative position of the clamping component and the knee sleeve 10 is not inconvenient, an adjustment block 32 is set on the knee sleeve 10, and the support block 11 is fixed to the adjustment block 32, thus ensuring the relative fixation of the position. When it is necessary to adjust the length of the first support rod 30 according to the length of the patient's lower leg, the rod 31 can be slid along the adjustment block 32. After moving to the determined position, the two can be fixed by the fixing structure, which can be a bolt, and is not limited here.

[0035] Furthermore, the electrical stimulation module 70 includes a processor 71 mounted on the outer side of the knee brace 10 and a matrix electrode 72 mounted on the inner side of the knee brace 10, the matrix electrode 72 being electrically connected to the processor 71; the stroke patient assistive walking brace also includes an electromyography (EMG) sensor 80 mounted on the ankle support 20, the EMG sensor 80 being used to detect EMG signals in the patient's lower leg, the EMG sensor 80 being electrically connected to the processor 71.

[0036] Understandably, the electromyography (EMG) sensor 80 can acquire the patient's EMG signal to determine the patient's intention to walk. Then, the processor 71 processes the electrical signal emitted by the EMG sensor 80 and controls the matrix electrode 72 to release the corresponding electrical stimulation, thereby enabling the electrical stimulation module 70 to work.

[0037] Furthermore, the assistive walking brace for stroke patients also includes a lumbar support 40 and a second support rod 50, with the two ends of the second support rod 50 being rotatably connected to the lumbar support 40 and the knee support 10, respectively.

[0038] Understandably, in order to maintain the stability of the patient's overall body posture while walking, a lumbar support 40 can be set on the patient's waist, and the lumbar support 40 and the knee support can be connected by a second support rod 50. When walking, the movement of the knee will help the waist maintain stability due to the presence of the second support rod 50, making it easier for the patient to walk.

[0039] In summary, the assistive walking brace for stroke patients in the above embodiments of this utility model has an arc-shaped plate that clamps the knee brace, allowing the knee brace to bring the electrical stimulation module closer to the patient's body, thus improving the efficiency of electrical stimulation. At the same time, the arc-shaped plate holds the knee brace during each movement, which can effectively prevent the knee brace from falling off when the knee rotates.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An assistive walking brace for stroke patients, characterized in that, The device includes a knee brace, an electrical stimulation module mounted on the knee brace, an ankle support, a first support rod connecting the knee brace and the ankle support, and a clamping assembly mounted on the first support rod. The clamping assembly includes a support block fixed to the first support rod, two clamping rods disposed opposite each other at both ends of the support block, an arc-shaped plate, an elastic element connecting the clamping rods and the arc-shaped plate, and a driving structure for driving the two clamping rods to move relative to each other. The side of the arc-shaped plate closest to the knee brace is disposed. The driving structure is electrically connected to the electrical stimulation module. The driving structure drives the two clamping rods to move closer to each other so that the arc-shaped plate presses against the knee brace.

2. The assistive walking brace for stroke patients according to claim 1, characterized in that, The elastic element includes a connecting rod and a spring located on the outer cylindrical surface of the connecting rod. A sliding hole is provided on the clamping rod. One end of the connecting rod is fixedly connected to the arc-shaped plate, and the other end is slidably disposed in the sliding hole. The two ends of the spring are fixedly connected to the arc-shaped plate and the clamping rod, respectively.

3. The assistive walking brace for stroke patients according to claim 1, characterized in that, The support block has sliding grooves at both ends for the clamping rod to slide along, and the driving structure drives the clamping rod to slide along the sliding grooves.

4. The assistive walking brace for stroke patients according to claim 3, characterized in that, The drive structure includes a bidirectional cylinder located inside the support block. The bidirectional cylinder includes a cylinder body and two telescopic rods respectively connected to the two clamping rods.

5. The assistive walking brace for stroke patients according to claim 1, characterized in that, The first support rod includes an adjustment block fixed to the knee brace, a rod body sliding along the adjustment block, and a fixing structure for fixing the adjustment block and the rod body. The support block is fixed to the adjustment block, and the rod body is rotatably connected to the ankle support.

6. The assistive walking brace for stroke patients according to claim 1, characterized in that, The electrical stimulation module includes a processor mounted on the outer side of the knee brace and a matrix electrode mounted on the inner side of the knee brace, the matrix electrode being electrically connected to the processor.

7. The assistive walking brace for stroke patients according to claim 6, characterized in that, The assistive walking brace for stroke patients also includes an electromyography (EMG) sensor mounted on the ankle support. The EMG sensor is used to detect EMG signals in the patient's lower leg and is electrically connected to the processor.

8. The assistive walking brace for stroke patients according to claim 7, characterized in that, The assistive walking brace for stroke patients also includes a lumbar support and a second support rod, with the two ends of the second support rod being rotatably connected to the lumbar support and the knee support, respectively.

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