Limb corrector for improving bad posture of hemiplegic patient

Abstract

The invention relates to the technical field of limb correction equipment, in particular to a limb corrector for improving bad postures of hemiplegic patients, comprising a base, a frame mounted at the upper end of the base, a pair of mounting racks mounted at the front end of the frame, a first rotating shaft rotatably connected in the mounting racks, and a first swing arm mounted on the circumferential surface of the first rotating shaft. A second rotating shaft is installed in the first swing arm, the second swing arm is installed on the circumferential face of the second rotating shaft, a first gear is installed on the circumferential face of the first rotating shaft, a center shaft is rotationally connected into the first rotating shaft, and a second gear is installed on the circumferential face of the center shaft. According to the hemiplegic patient walking posture correcting device, through the action of the posture correcting assembly, the lower limb posture of normal walking is simulated, and the effect of improving the bad walking posture of a hemiplegic patient is achieved.

Description

Technical Field

[0001] This invention relates to the field of limb correction equipment technology, and more specifically to a limb correction device for improving poor posture in hemiplegic patients. Background Technology

[0002] Hemiplegia, also known as half-paralysis, refers to a reduction or loss of voluntary motor function of the limbs. It may be accompanied by sensory disturbances, facial paralysis, stiff tongue and slurred speech, and impaired consciousness. Traditional Chinese medicine believes that hemiplegia is mostly caused by deficiency of the body's vital energy, insufficient essence, fluids, qi and blood, and malnourishment of the limbs, or by disturbance of the meridians by wind and yang, or by tangible evils such as phlegm, turbidity, and blood stasis. It is commonly seen in diseases such as stroke, syncope, and dizziness.

[0003] The shortcomings of existing technologies: During the treatment and rehabilitation of hemiplegic patients, patients need to persist in self-limb rehabilitation exercises to maintain the recovery of physical function. The traditional method is to conduct flexion and extension limb training with the help of medical staff or family members. However, such rehabilitation exercises require a lot of time and energy from medical staff or family members to assist, and cannot simulate the limb shape of normal walking. When walking independently later, patients cannot walk in a normal posture. Therefore, we propose a limb orthosis to improve the poor posture of hemiplegic patients. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a limb orthosis to improve poor posture in hemiplegic patients, so as to solve the problems existing in the background art.

[0005] This invention provides the following technical solution: a limb orthosis for improving poor posture in hemiplegic patients, comprising a base, a drive assembly mounted at the lower end of the base, a frame mounted at the upper end of the base, a pair of mounting frames mounted at the front end of the frame, and a posture correction component disposed within each mounting frame. Each posture correction component includes a first rotating shaft, a first swing arm, and a second swing arm. The first rotating shaft is rotatably connected within the mounting frame, the first swing arm is mounted on the circumferential surface of the first rotating shaft, a second rotating shaft is mounted within the first swing arm, the second swing arm is mounted on the circumferential surface of the second rotating shaft, a first gear is mounted on the circumferential surface of the first rotating shaft, a central shaft is rotatably connected within the first rotating shaft, a second gear is mounted on the circumferential surface of the central shaft, a mounting rod is slidably connected within the mounting frame, a first rack mounted at the lower end of the mounting rod meshes with the first gear, a second rack mounted at the lower end of the mounting rod meshes with the second gear, a connecting shaft is rotatably connected within the first swing arm, the central shaft and the connecting shaft are connected via a first sprocket assembly, and meshing linkage gears are mounted on the circumferential surfaces of both the connecting shaft and the second rotating shaft. Preferably, a pair of rotating seats are mounted on the surface of the frame, a drive rod is rotatably connected inside the rotating seats, a pair of turntables are mounted on the circumference of the drive rod, an eccentric block is mounted on the surface of the turntable, a connecting block is mounted on the rear end of the mounting rod, the connecting block is slidably connected to the mounting frame, a drive groove is opened on the surface of the connecting block, and the eccentric block is located in the drive groove.

[0006] Preferably, a drive motor is installed inside the frame, a drive shaft is installed at the output end of the drive motor, and the drive shaft is connected to the drive rod through a second sprocket set.

[0007] Preferably, positioning blocks are installed on the surfaces of both the first and second swing arms, soft pads are installed on the surfaces of the positioning blocks, and first adhesive tape is installed on the surfaces of the positioning blocks. A rotating rod is rotatably connected inside the second swing arm, and a foot pad is rotatably connected to the circumferential surface of the rotating rod.

[0008] Preferably, a back pad is installed between the mounting brackets, and a second adhesive tape is installed on the surface of the mounting brackets.

[0009] Preferably, the drive assembly includes a steering wheel set, a drive wheel set, and a connecting rod. The steering wheel set and the drive wheel set are both mounted on the lower end of the base. The connecting rod is mounted between the drive wheel sets, and the connecting rod is connected to the drive shaft via a third sprocket set.

[0010] Preferably, a handrail is installed on the upper end of the mounting frame, and an armrest is installed on the upper end of the handrail.

[0011] Preferably, a steering controller is installed on the circumferential surface of the handrail, and the steering controller transmits signals to the controller to control the rotation angle of the steering wheel assembly. An opening and closing button is installed at the upper end of the handrail.

[0012] The technical effects and advantages of this invention are as follows: 1. This invention controls the installation rod to slide back and forth, causing the first and second racks to move synchronously. This causes the first rotating shaft to rotate the first and second swing arms forward simultaneously. Since the central shaft rotates within the first rotating shaft, the central shaft, through the action of the first sprocket set, drives the connecting shaft to rotate. The connecting shaft, through the action of the linkage gear, causes the second rotating shaft to rotate in the opposite direction to the central shaft, thereby driving the second swing arm to rotate in the opposite direction to the first swing arm. When the first swing arm rotates forward, it raises the patient's thigh. At the same time, the second swing arm rotates backward in the opposite direction to the first swing arm, causing the patient's lower leg to bend backward. As the installation rod slides back and forth, the first and second swing arms on both sides swing alternately, thereby simulating the lower limb posture of normal walking and improving the poor walking posture of hemiplegic patients.

[0013] 2. This invention controls the rotation of the drive wheel assembly, which in turn moves the device. Simultaneously, the posture correction component guides the patient's legs to lift and lower in a normal posture, improving the realism of simulating normal walking. Furthermore, through the coordination of the steering wheel assembly, the movement direction of the device is controlled, allowing the patient to move freely within a certain area. The patient can also control the rotation direction of the steering wheel assembly by rotating the steering controller with their hand, freely manipulating the device's movement direction and walking freely within a certain area. Moreover, the drive motor can be started or stopped by the opening and closing device installed on the top of the handrail, achieving the effect of self-directed limb training and posture correction. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure viewed from the left in this invention; Figure 3 This is a schematic diagram of the structure viewed from the left side in this invention; Figure 4 This is a schematic diagram of the disassembled base and frame in this invention; Figure 5 This is a schematic diagram of the disassembled connecting block structure in this invention; Figure 6 This is a schematic diagram of the posture correction component in this invention; Figure 7 In this invention Figure 6 A schematic diagram of the structure of part A; Figure 8 In this invention Figure 6 A structural diagram of section B; Figure 9 This is a schematic diagram of the structure of the central axis split in this invention; Figure 10 This is a schematic diagram of the disassembled first and second swing arms in this invention; Figure 11 This is a schematic diagram of the handrail frame in this invention.

[0015] The reference numerals in the attached drawings are as follows: 1. Base; 101. Frame; 102. Mounting bracket; 2. Drive assembly; 201. Steering wheel assembly; 202. Drive wheel assembly; 203. Connecting rod; 204. Third sprocket assembly; 3. Posture correction assembly; 301. First rotating shaft; 302. First swing arm; 303. Second rotating shaft; 304. Second swing arm; 305. First gear; 306. Central shaft; 307. Second gear; 308. Mounting rod; 309. First rack; 3010. Second rack; 3011. Connecting shaft; 3012, First sprocket assembly; 3013, Linkage gear; 4, Rotating seat; 401, Drive rod; 402, Turntable; 403, Eccentric block; 404, Connecting block; 405, Drive groove; 406, Drive motor; 407, Drive shaft; 408, Second sprocket assembly; 5, Positioning block; 501, Soft pad; 502, First adhesive tape; 503, Rotating rod; 504, Foot pad; 6, Back pad; 601, Second adhesive tape; 7, Handrail frame; 701, Arm support; 702, Steering control; 703, Opening / closing button. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The limb orthosis for improving poor posture of hemiplegic patients involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figure 1-10As shown, in one embodiment, a limb orthosis for improving poor posture in hemiplegic patients is proposed, including a base 1, a drive assembly 2 mounted on the lower end of the base 1, a frame 101 mounted on the upper end of the base 1, and a pair of mounting brackets 102 mounted on the front end of the frame 101. Each mounting bracket 102 contains a posture correction component 3. The posture correction component 3 includes a first rotating shaft 301, a first swing arm 302, and a second swing arm 304. The first rotating shaft 301 is rotatably connected within the mounting bracket 102. The first swing arm 302 is mounted on the circumferential surface of the first rotating shaft 301. A second rotating shaft 303 is mounted within the first swing arm 302, and the second swing arm 304 is mounted on the circumferential surface of the second rotating shaft 303. A first gear 305 is mounted on the circumferential surface of the rotating shaft 301. A central shaft 306 is rotatably connected inside the first rotating shaft 301. A second gear 307 is mounted on the circumferential surface of the central shaft 306. A mounting rod 308 is slidably connected inside the mounting bracket 102. A first rack 309 mounted at the lower end of the mounting rod 308 meshes with the first gear 305. A second rack 3010 mounted at the lower end of the mounting rod 308 meshes with the second gear 307. A connecting shaft 3011 is rotatably connected inside the first swing arm 302. The central shaft 306 and the connecting shaft 3011 are connected by a first sprocket set 3012. Both the connecting shaft 3011 and the second rotating shaft 303 have meshing linkage gears 3013 mounted on their circumferential surfaces.

[0018] In practical application, the patient's thigh is fixed to the first swing arm 302, and the lower leg is fixed to the second swing arm 304. When the control rod 308 slides back and forth, it drives the first rack 309 and the second rack 3010 to move synchronously. The first rack 309 and the second rack 3010 then simultaneously drive the first gear 305 and the second gear 307 to rotate. The rotation of the first gear 305 drives the first rotating shaft 301 to rotate, which in turn drives the first swing arm 302 and the second swing arm 304 to rotate forward simultaneously. Since the tooth density of the first rack 309 and the second rack 3010 is similar, and the tooth density of the first gear 305 is greater than that of the second gear 307, the rotational speed of the second gear 307 will be greater than that of the first gear 305. When 307 rotates, it drives the central shaft 306 to rotate, causing the central shaft 306 to rotate within the first rotating shaft 301. The central shaft 306, through the action of the first sprocket group 3012, drives the connecting shaft 3011 to rotate. The connecting shaft 3011, through the action of the linkage gear 3013, causes the second rotating shaft 303 to rotate in the opposite direction to the central shaft 306, thereby driving the second swing arm 304 to rotate in the opposite direction to the first swing arm 302. When the first swing arm 302 rotates forward, it raises the patient's thigh. At the same time, the second swing arm 304 rotates backward in the opposite direction to the first swing arm 302, causing the patient's lower leg to bend backward. As the mounting rod 308 slides back and forth, the first swing arm 302 and the second swing arm 304 on both sides swing alternately, thereby simulating the lower limb posture of normal walking and improving the poor walking posture of hemiplegic patients.

[0019] like Figure 4 and 5 As shown, in one embodiment, a pair of rotating seats 4 are mounted on the surface of the frame 101. A drive rod 401 is rotatably connected inside the rotating seat 4. A pair of turntables 402 are mounted on the circumferential surface of the drive rod 401. An eccentric block 403 is mounted on the surface of the turntable 402. A connecting block 404 is mounted on the rear end of the mounting rod 308. The connecting block 404 is slidably connected to the mounting frame 102. A drive groove 405 is opened on the surface of the connecting block 404, and the eccentric block 403 is located in the drive groove 405.

[0020] In practical application, the drive rod 401 is rotated, which in turn drives the turntable 402 to rotate. The turntable 402 then drives the eccentric block 403 to rotate. Since the eccentric blocks 403 on both sides are staggered, when the eccentric blocks 403 rotate, the connecting blocks 404 on the left and right sides slide back and forth alternately through the cooperation of the drive groove 405. This simultaneously drives the mounting rods 308 on both sides to slide back and forth alternately, thereby achieving the effect of controlling the first swing arm 302 and the second swing arm 304 to swing alternately, thus enabling the patient's lower limbs to walk in a normal posture and correcting the patient's poor walking posture.

[0021] like Figure 3 and 4 As shown, in one embodiment, a drive motor 406 is installed inside the frame 101, and a drive shaft 407 is installed at the output end of the drive motor 406. The drive shaft 407 and the drive rod 401 are connected by a second sprocket set 408.

[0022] In practical application, the embodiment of the present invention controls the operation of the drive motor 406, which drives the drive shaft 407 to rotate. The drive shaft 407, through the action of the second sprocket group 408, drives the drive rod 401 to rotate, thereby achieving the effect of controlling the operation of the posture correction component 3.

[0023] like Figure 2 , 3 As shown in Figure 6, in one embodiment, positioning blocks 5 are installed on the surfaces of the first swing arm 302 and the second swing arm 304. Soft pads 501 are installed on the surfaces of the positioning blocks 5, and first adhesive tapes 502 are installed on the surfaces of the positioning blocks 5. A rotating rod 503 is rotatably connected inside the second swing arm 304, and foot pads 504 are rotatably connected to the circumferential surface of the rotating rod 503.

[0024] In practical application, the patient's lower limbs are placed on the soft pad 501, and then the first adhesive tape 502 is joined and bonded together. The patient's thigh and calf are fixed to the first swing arm 302 and the second swing arm 304 respectively, and the patient's lower limbs are fixed together with the first swing arm 302 and the second swing arm 304. The patient's feet are placed on the foot pad 504. When the posture correction component 3 is operated, it can drive the patient's lower limbs to move in a normal walking posture, thereby achieving the effect of improving the poor walking posture of hemiplegic patients.

[0025] like Figure 1 As shown, in one embodiment, a back pad 6 is installed between the mounting brackets 102, and a second adhesive tape 601 is installed on the surface of the mounting brackets 102.

[0026] In practical application, when using the device, the patient's back is attached to the back pad 6 to support the patient's back. At the same time, the second adhesive tape 601 is attached and wrapped around the patient's waist to restrict the patient's body parts and prevent the patient from leaning forward and falling while using the device.

[0027] like Figure 3 and 4 As shown, in one embodiment, the drive assembly 2 includes a steering wheel set 201, a drive wheel set 202, and a connecting rod 203. The steering wheel set 201 and the drive wheel set 202 are both mounted on the lower end of the base 1. The connecting rod 203 is mounted between the drive wheel sets 202. The connecting rod 203 is connected to the drive shaft 407 via a third sprocket set 204.

[0028] In practical application, when the posture correction component 3 is running, the drive shaft 407, through the action of the third sprocket set 204, will drive the connecting rod 203 to rotate. The connecting rod 203 will then drive the drive wheel set 202 to rotate, and the drive wheel set 202 will drive the device to move. At the same time, the posture correction component 3 will help the patient's legs to lift and lower in a normal posture, improving the realism of simulating normal walking. Furthermore, through the cooperation of the steering wheel set 201, the movement direction of the device is controlled, allowing the patient to move freely within a certain area when using the device.

[0029] like Figure 1 and 11 As shown, in one embodiment, a handrail 7 is installed on the upper end of the mounting bracket 102, and an armrest 701 is installed on the upper end of the handrail 7.

[0030] In practical applications, when patients use the device, their hands support the handrail 7, while their arms are supported on the armrest 701. With the cooperation of the back pad 6, the stability of the body can be ensured.

[0031] like Figure 1 and 11 As shown, in one embodiment, a steering controller 702 is installed on the circumferential surface of the handrail 7. The steering controller 702 transmits signals to the controller to control the rotation angle of the steering wheel assembly 201. An opening and closing button 703 is installed on the upper end of the handrail 7.

[0032] In practical application, when using the device, the patient can control the rotation direction of the steering wheel assembly 201 by rotating the steering manipulator 702 with their hand, and can freely control the direction of movement of the device, walk freely within a certain area, and can control the start and stop of the drive motor 406 by using the start and stop button 703 installed on the top of the handrail 7, so that the posture correction component 3 stops or starts running.

[0033] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A limb orthotic device for improving poor posture in hemiplegic patients, comprising a base (1), characterized in that: A drive assembly (2) is installed at the lower end of the base (1), and a frame (101) is installed at the upper end of the base (1). A pair of mounting brackets (102) are installed at the front end of the frame (101). Each mounting bracket (102) is equipped with a posture correction assembly (3). The posture correction assembly (3) includes a first rotating shaft (301), a first swing arm (302), and a second swing arm (304). The first rotating shaft (301) is rotatably connected to the mounting bracket (102). The first swing arm (302) is installed on the circumferential surface of the first rotating shaft (301). A second rotating shaft (303) is installed inside the first swing arm (302). The second swing arm (304) is installed on the circumferential surface of the second rotating shaft (303). A first gear is installed on the circumferential surface of the first rotating shaft (301). 305), a central shaft (306) is rotatably connected inside the first rotating shaft (301), a second gear (307) is installed on the circumferential surface of the central shaft (306), an mounting rod (308) is slidably connected inside the mounting bracket (102), a first rack (309) installed at the lower end of the mounting rod (308) meshes with the first gear (305), a second rack (3010) installed at the lower end of the mounting rod (308) meshes with the second gear (307), a connecting shaft (3011) is rotatably connected inside the first swing arm (302), the central shaft (306) and the connecting shaft (3011) are connected by a first sprocket set (3012), and meshing linkage gears (3013) are installed on the circumferential surfaces of the connecting shaft (3011) and the second rotating shaft (303).

2. The limb orthosis for improving poor posture in hemiplegic patients according to claim 1, characterized in that: A pair of rotating seats (4) are mounted on the surface of the frame (101). A drive rod (401) is rotatably connected inside the rotating seat (4). A pair of turntables (402) are mounted on the circumferential surface of the drive rod (401). An eccentric block (403) is mounted on the surface of the turntable (402). A connecting block (404) is mounted on the rear end of the mounting rod (308). The connecting block (404) is slidably connected to the mounting frame (102). A drive groove (405) is opened on the surface of the connecting block (404). The eccentric block (403) is located in the drive groove (405).

3. A limb orthosis for improving poor posture in hemiplegic patients according to claim 2, characterized in that: A drive motor (406) is installed inside the frame (101), and a drive shaft (407) is installed at the output end of the drive motor (406). The drive shaft (407) and the drive rod (401) are connected by a second sprocket set (408).

4. A limb orthosis for improving poor posture in hemiplegic patients according to claim 1, characterized in that: The first swing arm (302) and the second swing arm (304) are both equipped with positioning blocks (5), the positioning blocks (5) are equipped with soft pads (501), and the positioning blocks (5) are equipped with first adhesive tapes (502). The second swing arm (304) is rotatably connected to a rotating rod (503), and the rotating rod (503) is rotatably connected to a foot pad (504) on its circumference.

5. A limb orthosis for improving poor posture in hemiplegic patients according to claim 1, characterized in that: A back pad (6) is installed between the mounting brackets (102), and a second adhesive tape (601) is installed on the surface of the mounting brackets (102).

6. A limb orthosis for improving poor posture in hemiplegic patients according to claim 3, characterized in that: The drive assembly (2) includes a steering wheel set (201), a drive wheel set (202), and a connecting rod (203). The steering wheel set (201) and the drive wheel set (202) are both installed at the lower end of the base (1). The connecting rod (203) is installed between the drive wheel sets (202). The connecting rod (203) is connected to the drive shaft (407) through a third sprocket set (204).

7. A limb orthosis for improving poor posture in hemiplegic patients according to claim 6, characterized in that: The upper end of the mounting frame (102) is equipped with a handrail frame (7), and the upper end of the handrail frame (7) is equipped with an armrest (701).

8. A limb orthosis for improving poor posture in hemiplegic patients according to claim 7, characterized in that: A steering control device (702) is installed on the circumferential surface of the handrail (7). The steering control device (702) transmits signals to the controller to control the rotation angle of the steering wheel assembly (201). An opening and closing button (703) is installed on the upper end of the handrail (7).

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