A hip posture correction assistive device

Abstract

The application discloses a hip joint posture correction auxiliary equipment, and relates to the technical field of medical devices, which comprises a fixing part, a correction part, a rotating mechanism, a sensor, a processor and a controller. The sensor is used for detecting the knee joint angle sequence signal of the inward deviation of the knee joint at different time points in each walking cycle in real time. The processor is used for extracting the standing phase knee joint angle sequence signal corresponding to multiple time points in each walking cycle in a standing phase from the knee joint angle sequence signal if the knee joint angle sequence signal of the inward deviation of the knee joint at different time points in multiple continuous walking cycles is received in a period of time, and determining the correction time required for correcting the hip joint or the knee joint by using the standing phase knee joint angle sequence signal corresponding to multiple time points in each walking cycle, and generating a rotating instruction. The controller is used for starting the rotating structure to operate according to the rotating instruction, and stopping the rotating mechanism from operating after the correction time is reached.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a hip joint posture correction assistive device. Background Technology

[0002] Cerebral palsy, or cerebral palsy for short, is the most common childhood disorder causing motor dysfunction. It is caused by non-progressive damage to the developing fetal or infant brain, but the resulting musculoskeletal sequelae are progressive and lifelong. The size, shape, and strength characteristics of bones and joints are determined by genetics, bone growth, and the forces exerted on the muscles. In children with cerebral palsy, the initial static brain damage leads to spasticity / dystonia and muscle weakness, resulting in abnormal muscle strength acting on the developing bones. This affects bone morphology and can lead to progressive hip dysplasia, scoliosis, and brittle bones. The critical developmental period for the hip joint is between 1 and 8 years of age, a crucial age for the prognosis of hip dysplasia and an important period for treatment.

[0003] Approximately one-third of children with cerebral palsy develop hip subluxation or dislocation. Hip dysphoria is a key focus of attention and treatment for children with cerebral palsy. Hip dysphoria, characterized by abnormal gait with hip flexion, adduction, and internal rotation, is a high-risk factor for hip dysplasia, subluxation, or dislocation, and a significant cause of hip pain, osteoarthritis, and reduced quality of life later in life. However, for abnormal hip postures, physical therapy is typically used to maintain soft tissue range of motion, and surgery is required if secondary osteoarthritis develops. Currently, there is a lack of assistive devices specifically designed for these abnormal hip postures. Therefore, for children with cerebral palsy, better prevention of hip dysplasia or dislocation and promotion of near-normal hip development are crucial. Thus, there is an urgent need for easily wearable, readily available home-use assistive devices that can help correct hip joint problems. Summary of the Invention

[0004] This invention provides a hip joint posture correction assistive device to solve the technical problem of how to better prevent hip dysplasia or dislocation and promote the hip joint to approach normal development.

[0005] This invention provides a hip joint posture correction assistive device, comprising:

[0006] Fixing parts are installed at the waist and around the root of the thigh;

[0007] A corrective part is located below the fixing part and can rotate the thigh.

[0008] A rotating mechanism is disposed below the fixing part and above the straightening part, for driving the straightening part to rotate relative to the fixing part;

[0009] The sensor, installed on the knee joint, is used to detect in real time the sequence signal of the knee joint angle that shifts inward at different times during each walking cycle.

[0010] The processor, located outside the fixing part or the correction part, is used to extract the standing phase knee joint angle sequence signal corresponding to multiple moments in the standing phase of each walking cycle from the knee joint angle sequence signal if a knee joint angle sequence signal of inward displacement of the knee joint is received at different times in multiple consecutive walking cycles within a period of time, and to determine the correction time required for the rotating component to correct the hip joint or knee joint using the standing phase knee joint angle sequence signal corresponding to multiple moments in each walking cycle, and to generate a rotation command for driving the rotating mechanism to operate.

[0011] A controller is located outside the fixing part or the straightening part, and is used to start the operation of the rotating structure according to the rotation command, and to stop the operation of the rotating mechanism after the straightening time is reached.

[0012] Preferably, it further includes:

[0013] An airbag, located inside the corrective part, is used to fill the gap between the corrective part and the thigh, ensuring that the corrective part rotates together with the thigh.

[0014] An air pump, located below the corrective unit, is used to inflate the airbag;

[0015] An inflation / deflation pipe, one end of which is connected to the air pump, and the other end of which is connected to the airbag;

[0016] An airbag deflation valve is installed on the inflation / deflation pipe and is used to deflate the gas inside the airbag.

[0017] Preferably, the processor is further configured to generate an inflation command that includes a set inflation time and is used to drive the air pump to operate when it receives a sequence of knee joint angles that indicate inward displacement of the knee joint at different times within multiple consecutive walking cycles over a period of time.

[0018] Preferably, the controller is further configured to start the air pump to inflate the airbag according to the inflation command, and stop the air pump to inflate the airbag after the set inflation time has elapsed.

[0019] Preferably, the processor is specifically configured to analyze the knee joint angle sequence signal of inward displacement of the knee joint at different times within each walking cycle sent by the sensor, extract the standing phase knee joint angle sequence signal corresponding to multiple times in the standing phase of each walking cycle from the knee joint angle sequence signal of inward displacement of the knee joint at different times within each walking cycle, and obtain the average standing phase knee joint angle value by averaging the standing phase knee joint angle sequence signals corresponding to multiple times in each walking cycle.

[0020] Preferably, the processor is specifically used to calculate the angle value to be adjusted for the hip joint or knee joint based on the average standing knee joint angle value and the preset reference standing knee joint angle value, and to determine the correction time required for the rotating mechanism to correct the hip joint or knee joint based on the angle value and the rotation speed of the rotating mechanism.

[0021] Preferably, when the rotating mechanism is a rotating motor and a gear, the rotating motor is fixedly disposed below the fixed part; the gear is located in the groove above the straightening part and meshes with the external teeth in the groove;

[0022] Accordingly, the rotating mechanism is specifically used during startup, where the gear rotation drives the external gear rotation, driving the corrective part to rotate relative to the fixed part, thereby causing the thigh to rotate in the opposite direction to the inward offset of the knee joint, until the knee joint faces forward and is located below the hip joint.

[0023] Preferably, when the rotating mechanism comprises a rotating electric push rod, a reset electric push rod, and a triangular protrusion, the rotating mechanism is specifically used during startup. The rotating electric push rod applies force to the first inclined surface of the triangular protrusion, driving the correction part to rotate relative to the fixing part, thereby causing the thigh to rotate in the opposite direction to the inward offset of the knee joint. At the same time, the reset electric push rod remains stationary until the knee joint faces forward and is located below the hip joint.

[0024] The rotating electric actuator and the resetting electric actuator are fixedly disposed below the fixing part; the triangular protrusion is located above the correcting part, and its first inclined surface is located below the rotating electric actuator, and its second inclined surface is located below the resetting electric actuator.

[0025] Preferably, it further includes:

[0026] A reset button is provided in the fixing part or the straightening part;

[0027] Accordingly, the processor is also configured to, upon receiving a press operation of the reset button, generate a reverse rotation command including a reset time and used to drive the rotation mechanism to reset, and generate a deflation command used to drive the airbag deflation valve to operate; the reset time is the same as the correction time;

[0028] The controller is also used to start the rotation structure reset operation according to the reverse rotation command, and stop the rotation mechanism reset operation after the reset time is reached, and at the same time start the airbag deflation valve to release the gas in the airbag.

[0029] Preferably, the fixing part is connected to the bearing housing at the bottom, and the straightening part is connected to the bearing installed in the bearing housing at the top, thereby realizing the connection between the fixing part and the straightening part.

[0030] The beneficial effects of this invention are that by assisting in the correction of hip joint posture and walking pattern, walking in a near-correct posture can promote normal hip joint development, optimize walking movement pattern, prevent complications, and reduce the chance of surgery. Attached Figure Description

[0031] Figure 1 This is a control principle diagram of a hip joint posture correction assistive device provided by the present invention;

[0032] Figure 2 This is a schematic diagram of the components in the hip joint posture correction assistive device provided by the present invention;

[0033] Figure 3 This invention provides Figure 2 Partial sectional view of line AA in the middle;

[0034] Figure 4 This is a partial side view schematic diagram of the first correction part provided by the present invention;

[0035] Figure 5 This is a schematic diagram of the overall structure of the fixing part and the straightening part provided by the present invention;

[0036] Figure 6 This is a schematic diagram of the overall structure of the fixing part and the straightening part provided by the present invention;

[0037] Figure 7 This invention provides Figure 6 Partial sectional view;

[0038] Figure 8 This is a schematic diagram of the structure of a hip joint posture correction assistive device provided by the present invention;

[0039] Figure 9 This is a schematic diagram of the structure of a hip joint posture correction assistive device provided by the present invention;

[0040] Figure 10 This is a schematic diagram of the initial state of structure three of the hip joint posture correction assistive device provided by the present invention;

[0041] Figure 11 This is a schematic diagram of the corrective state of structure three of the hip joint posture correction assistive device provided by the present invention;

[0042] Figure 12 This is a schematic diagram of the reset state of structure three of the hip joint posture correction assistive device provided by the present invention;

[0043] Figure 13 This invention provides Figure 10 Partial side view of the image. Detailed Implementation

[0044] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In the following description, suffixes such as "module," "part," or "unit" used to denote elements are used only for the purpose of illustrative purposes and have no inherent meaning. Therefore, "module," "part," or "unit" may be used interchangeably. Example 1

[0045] Figure 1 This is a control principle diagram of a hip joint posture correction assistive device provided by the present invention, such as... Figure 1 As shown, it includes:

[0046] Fixing parts are installed at the waist and around the root of the thigh;

[0047] A corrective part is located below the fixing part and can rotate the thigh.

[0048] A rotating mechanism is disposed below the fixing part and above the straightening part, for driving the straightening part to rotate relative to the fixing part;

[0049] The sensor, installed on the knee joint, is used to detect in real time the sequence signal of the knee joint angle that shifts inward at different times during each walking cycle.

[0050] The processor, located outside the fixing part or the correction part, is used to extract the standing phase knee joint angle sequence signal corresponding to multiple moments in the standing phase of each walking cycle from the knee joint angle sequence signal if a knee joint angle sequence signal of inward displacement of the knee joint is received at different times in multiple consecutive walking cycles within a period of time, and to determine the correction time required for the rotating component to correct the hip joint or knee joint using the standing phase knee joint angle sequence signal corresponding to multiple moments in each walking cycle, and to generate a rotation command for driving the rotating mechanism to operate.

[0051] A controller is located outside the fixing part or the straightening part, and is used to start the operation of the rotating structure according to the rotation command, and to stop the operation of the rotating mechanism after the straightening time is reached.

[0052] like Figure 2 The diagram shows the components of the hip joint posture correction assistive device, including a fixing part located at the waist and around the root of the thigh; a first correction part located below the fixing part and capable of rotating the right thigh; and a second correction part located below the fixing part and capable of rotating the left thigh. Both the first and second correction parts have grooves above them, and each groove contains multiple external teeth.

[0053] In one embodiment of the present invention, the sensor is a gyroscope sensor, which is fixed to the user's knee joint by a strap with Velcro or other means.

[0054] In addition, the sensor can also be placed at the front of the shoe to detect the inward toe offset angle sequence signal. When the processor continuously receives inward toe offset angle sequence signals detected by the sensor for a period of time that are all greater than the set inward toe offset angle sequence signal value, it extracts the inward toe offset angle sequence signals corresponding to multiple moments in the standing phase of each walking cycle from the inward toe offset angle sequence signals. Using the inward toe offset angle sequence signals corresponding to multiple moments in the standing phase of each walking cycle, it determines the correction time required for the rotating component to correct the hip or knee joint, and generates a rotation command to drive the rotating mechanism. Then, it starts the rotating component (power on) and stops the rotating component (power off) after the correction time is reached, so that the patella at the front of the knee joint in the standing phase of each walking cycle is located below the hip joint through the correction part.

[0055] It should be noted that each walking cycle includes a standing phase and a swinging phase.

[0056] like Figures 3-4As shown, the embodiment of the present invention further includes: an airbag disposed inside the corrective part for filling the gap between the corrective part and the thigh to ensure that the corrective part rotates together with the thigh; an air pump disposed below the corrective part for inflating the airbag; an inflation / deflation pipe, one end of which is connected to the air pump and the other end of which is connected to the airbag; and an airbag deflation valve disposed on the inflation / deflation pipe for deflating the gas inside the airbag.

[0057] Furthermore, the airbag includes an inner wall, an outer wall, and an airbag cavity located between the inner and outer walls. The outer wall is embedded in the inner wall of the corrective device, and the inner wall conforms to the outer side of the inner thigh of the corrective device. When the air pump inflates the airbag, the airbag cavity expands, fully enveloping the thigh area to ensure that the corrective device can rotate with the thigh. After the airbag deflates through the deflation valve, the airbag cavity contracts.

[0058] like Figures 6-7 As shown, a schematic diagram of the overall structure of the fixing part and the straightening part is provided. To ensure user safety, a connecting rotating part housing is also provided at the connection point between the lower part of the fixing part and the upper part of the first straightening part and the upper part of the second straightening part, as shown. Figure 7 As shown, the outer shell of the connecting rotating part is fixedly installed below the fixed part, and the first and second straightening parts are suspended for protection, so as to ensure that the first and second straightening parts can rotate.

[0059] Furthermore, the air pumps are respectively positioned below the first correction section and the second correction section.

[0060] In one optional embodiment, both the fixing part and the corrective part are made of a hard outer shell and a soft inner lining to ensure user comfort and the sturdiness of the assistive device. For example, the soft inner lining of the fixing part and the corrective part is made of non-toxic polymer materials such as polyvinyl chloride, polypropylene, silicone rubber, and ABS.

[0061] In one embodiment of the present invention, the processor is further configured to generate an inflation command that includes a set inflation time and is used to drive the air pump to operate when it receives a sequence signal of knee joint angles that indicate inward displacement of the knee joint at different times within multiple consecutive walking cycles over a period of time.

[0062] In one embodiment of the present invention, the controller is further configured to start the air pump to inflate the airbag according to the inflation command, and stop the air pump to inflate the airbag after the set inflation time has elapsed.

[0063] In one embodiment of the present invention, the processor is specifically configured to analyze the knee joint angle sequence signal of inward displacement of the knee joint at different times in each walking cycle sent by the sensor, extract the standing phase knee joint angle sequence signal corresponding to multiple times in the standing phase in each walking cycle from the knee joint angle sequence signal of inward displacement of the knee joint at different times in each walking cycle, and obtain the average standing phase knee joint angle value by averaging the standing phase knee joint angle sequence signals corresponding to multiple times in each walking cycle.

[0064] In one embodiment of the present invention, the processor is specifically configured to calculate the angle value to be adjusted for the hip joint or knee joint based on the average standing knee joint angle value and a preset reference standing knee joint angle value, and to determine the correction time required for the rotating mechanism to correct the hip joint or knee joint based on the angle value and the rotation speed of the rotating mechanism.

[0065] The reference standing knee angle value is an initial angle value, i.e., the angle value when the knee joint faces directly forward and is located below the hip joint. The processor is also specifically used to establish and store a correction correspondence table containing the relationship between angle values, rotational speed of the rotating component, and correction time. By querying the correction correspondence table, the required correction time for the motor to correct the hip or knee joint corresponding to the angle value and the rotational speed of the rotating component is determined. Example 2

[0066] In one embodiment of the present invention, when the rotating mechanism is a rotating motor and a gear, the rotating motor is fixedly disposed below the fixed part; the gear is located in a groove above the corrective part and meshes with the external teeth in the groove; correspondingly, the rotating mechanism is specifically used to drive the external teeth to rotate during startup, thereby driving the corrective part to rotate relative to the fixed part, thereby driving the thigh to rotate in the opposite direction to the inward offset of the knee joint, until the knee joint faces forward and is located below the hip joint.

[0067] like Figure 8 As shown, the driving wheel corresponding to the rotating motor drives the correction part to rotate relative to the fixed part; multiple driven wheels corresponding to multiple rotating motors are used to form a rotating connection between the correction part and the fixed part; that is, multiple rotating motors and their corresponding driven wheels serve as connecting parts between the fixed part and the correction part, and the number of driven wheels can be two or four.

[0068] Workflow: Taking the first correction unit as an example, during correction, the driving wheel rotates forward, driving the first correction unit to rotate outward relative to the fixed unit. Simultaneously, the driven wheel of the connecting member also rotates forward under the driving wheel's forward rotation, ensuring that the user's left knee joint faces directly forward and is located below the hip joint in the standing phase of each walking cycle. The driven wheel of the first correction unit's connecting member forms a rotatable connection between the first correction unit and the fixed unit. During reset, the driving wheel rotates in the opposite direction, driving the first correction unit to rotate inward relative to the fixed unit. Simultaneously, the driven wheel of the connecting member also rotates in the opposite direction under the driving wheel's reverse rotation, resetting the fixed unit and the first correction unit to their original positions. Example 3

[0069] In one embodiment of the present invention, when the rotating mechanism is a rotating motor and a gear, the rotating motor is fixedly disposed below the fixed part; the gear is located in a groove above the corrective part and meshes with the external teeth in the groove; correspondingly, the rotating mechanism is specifically used to drive the external teeth to rotate during startup, thereby driving the corrective part to rotate relative to the fixed part, thereby driving the thigh to rotate in the opposite direction to the inward offset of the knee joint, until the knee joint faces forward and is located below the hip joint.

[0070] In one embodiment of the present invention, such as Figure 9 As shown, the fixing part and the straightening part can be rotatably connected by a bearing. For example, the lower part of the fixing part is connected to the bearing seat, while the upper part of the straightening part is connected to the bearing installed in the bearing seat, thereby realizing the connection between the fixing part and the straightening part.

[0071] Furthermore, the fixing part and the straightening part can also be connected by threads, that is, the internal thread of the straightening part and the external thread of the fixing part are connected by threads.

[0072] Workflow: Taking the first correction unit as an example, during correction, the driving wheel rotates forward, driving the first correction unit to rotate outward relative to the fixed unit. Simultaneously, the bearing installed in the bearing seat of the first correction unit also rotates forward under the driving wheel's forward rotation, ensuring that the user's left knee joint faces directly forward and is located below the hip joint in the standing phase of each walking cycle. The driven wheel of the first correction unit connector forms a rotatable connection between the first correction unit and the fixed unit. During reset, the driving wheel rotates in the opposite direction, driving the first correction unit to rotate inward relative to the fixed unit. Simultaneously, the bearing installed in the bearing seat of the first correction unit also rotates in the opposite direction under the driving wheel's reverse rotation, resetting the fixed unit and the first correction unit to their original positions. Example 4

[0073] In one embodiment of the present invention, such as Figures 10-13 As shown, when the rotating mechanism comprises a rotating electric actuator, a resetting electric actuator, and a triangular protrusion, the rotating mechanism is specifically used during startup. During operation, the rotating electric actuator applies force to the first inclined surface of the triangular protrusion, driving the corrective part to rotate relative to the fixed part, thereby causing the thigh to rotate in the opposite direction to the inward displacement of the knee joint. Simultaneously, the resetting electric actuator remains stationary until the knee joint faces forward and is located below the hip joint. The rotating electric actuator and the resetting electric actuator are fixedly disposed below the fixed part. The triangular protrusion is located above the corrective part, with its first inclined surface below the rotating electric actuator and its second inclined surface below the resetting electric actuator.

[0074] Furthermore, the rotating electric actuator applies force to the first inclined surface of the triangular protrusion to rotate the correction part; the resetting electric actuator applies force to the second inclined surface of the triangular protrusion to reset the correction part.

[0075] In one embodiment of the present invention, the fixing part and the straightening part can be rotatably connected by a bearing, that is, the lower part of the fixing part is connected to a bearing housing, and the upper part of the straightening part is connected to a bearing installed in the bearing housing, thereby realizing the connection between the fixing part and the straightening part. Furthermore, the fixing part and the straightening part can also be connected by threads, that is, the internal thread of the straightening part and the external thread of the fixing part are threaded together.

[0076] like Figure 10 As shown, in the initial state, the telescopic push rods of both the rotating electric push rod and the reset electric push rod remain in their original positions. The rotating electric push rod is located above the first inclined surface of the triangular protrusion, and the reset electric push rod does not contact the triangular protrusion.

[0077] like Figure 11 As shown, in the corrective state, the rotating electric actuator applies force to the first inclined surface of the triangular protrusion, driving the corrective part to rotate relative to the fixed part, thereby causing the thigh to rotate in the opposite direction to the inward offset of the knee joint. At the same time, the reset electric actuator remains stationary until the knee joint faces forward and is located below the hip joint, at which point the center line of the corrective part moves. The rotating electric actuator and the reset electric actuator are fixedly disposed below the fixed part; the triangular protrusion is located above the corrective part, with its first inclined surface located below the rotating electric actuator and its second inclined surface located below the reset electric actuator.

[0078] like Figure 12 As shown, in the reset state, the rotating electric actuator resets, and the reset electric actuator drives the correcting part to rotate relative to the fixed part by applying force to the second inclined surface of the triangular protrusion. At this time, the center line of the correcting part returns to the center position.

[0079] In one embodiment of the present invention, a reset button is further included, disposed on the fixing part or the correction part; correspondingly, the processor is further configured to generate, upon receiving a pressing operation of the reset button, a reverse rotation command including a reset time and used to drive the rotating mechanism to reset, and a deflation command used to drive the airbag deflation valve to operate; the reset time is the same as the correction time; the controller is further configured to start the rotating structure to reset according to the reverse rotation command, and stop the rotating mechanism to reset after the reset time is reached, and simultaneously start the airbag deflation valve to deflate the gas in the airbag.

[0080] In summary, portable and removable hip joint correction devices can correct hip flexion, adduction, and internal rotation postures, enabling individuals to stand and walk in the correct posture, promoting near-normal hip joint development, avoiding long-term secondary changes in bones and muscles, reducing pain occurrence in the long term, and improving quality of life.

[0081] The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but this does not limit the scope of the invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and spirit of the present invention should be within the scope of the present invention.

Claims

1. A hip joint posture correction assistive device, characterized in that, include: Fixing parts are installed at the waist and around the root of the thigh; A corrective part is located below the fixing part and can rotate the thigh. A rotating mechanism is provided below the fixed part and above the corrective part, for driving the corrective part to rotate relative to the fixed part during startup, thereby causing the thigh to rotate in the opposite direction to the inward displacement of the knee joint, until the knee joint faces forward and is located below the hip joint; The sensor, installed on the knee joint, is used to detect in real time the sequence signal of the knee joint angle that shifts inward at different times during each walking cycle. The processor, located outside the fixing part or the correction part, is used to extract the standing phase knee joint angle sequence signal corresponding to multiple moments in the standing phase of each walking cycle from the knee joint angle sequence signal if it receives the knee joint angle sequence signal of inward displacement of the knee joint at different times in multiple consecutive walking cycles within a period of time, and to determine the correction time required for the rotation mechanism to correct the hip joint or knee joint using the standing phase knee joint angle sequence signal corresponding to multiple moments in each walking cycle, and to generate a rotation command for driving the rotation mechanism to operate. A controller is located outside the fixing part or the straightening part, and is used to start the rotation mechanism according to the rotation command, and stop the rotation mechanism after the straightening time is reached; Specifically, the processor is used to analyze the knee joint angle sequence signal of inward displacement of the knee joint at different times in each walking cycle sent by the sensor, extract the standing phase knee joint angle sequence signal corresponding to multiple times in the standing phase in each walking cycle from the knee joint angle sequence signal of inward displacement of the knee joint at different times in each walking cycle, and obtain the average standing phase knee joint angle value by averaging the standing phase knee joint angle sequence signals corresponding to multiple times in each walking cycle. The processor is specifically used to calculate the angle value to be adjusted for the hip or knee joint based on the average standing knee joint angle value and the preset reference standing knee joint angle value, and to determine the correction time required for the rotating mechanism to correct the hip or knee joint based on the angle value and the rotation speed of the rotating mechanism.

2. The hip joint posture correction assistive device according to claim 1, characterized in that, Also includes: An airbag, located inside the corrective part, is used to fill the gap between the corrective part and the thigh, ensuring that the corrective part rotates together with the thigh. An air pump, located below the corrective unit, is used to inflate the airbag; An inflation / deflation pipe, one end of which is connected to the air pump, and the other end of which is connected to the airbag; An airbag deflation valve is installed on the inflation / deflation pipe and is used to deflate the gas inside the airbag.

3. The hip joint posture correction assistive device according to claim 2, characterized in that, The processor is also configured to generate an inflation command that includes a set inflation time and is used to drive the air pump to operate when it receives a sequence of knee joint angles that indicate inward displacement of the knee joint at different times within multiple consecutive walking cycles over a period of time.

4. The hip joint posture correction assistive device according to claim 3, characterized in that, The controller is also configured to start the air pump to inflate the airbag according to the inflation command, and stop the air pump to inflate the airbag after the set inflation time has elapsed.

5. The hip joint posture correction assistive device according to claim 1, characterized in that, When the rotating mechanism is a rotating motor and a gear, the rotating motor is fixedly installed below the fixed part; the gear is located in the groove above the straightening part and meshes with the external teeth in the groove; Accordingly, the rotating mechanism is specifically used during startup, where the gear rotation drives the external gear rotation, driving the corrective part to rotate relative to the fixed part, thereby causing the thigh to rotate in the opposite direction to the inward offset of the knee joint, until the knee joint faces forward and is located below the hip joint.

6. The hip joint posture correction assistive device according to claim 5, characterized in that, When the rotating mechanism consists of a rotating electric push rod, a reset electric push rod, and a triangular protrusion, the rotating mechanism is specifically used during startup. The rotating electric push rod applies force to the first inclined surface of the triangular protrusion, driving the correction part to rotate relative to the fixing part, thereby causing the thigh to rotate in the opposite direction to the inward offset of the knee joint. At the same time, the reset electric push rod remains in place until the knee joint faces forward and is located below the hip joint. The rotating electric actuator and the resetting electric actuator are fixedly disposed below the fixing part; the triangular protrusion is located above the correcting part, and its first inclined surface is located below the rotating electric actuator, and its second inclined surface is located below the resetting electric actuator.

7. The hip joint posture correction assistive device according to claim 2, characterized in that, Also includes: A reset button is provided in the fixing part or the straightening part; Accordingly, the processor is also configured to, upon receiving a press operation of the reset button, generate a reverse rotation command including a reset time and used to drive the rotation mechanism to reset, and generate a deflation command used to drive the airbag deflation valve to operate; the reset time is the same as the correction time; The controller is also used to start the rotation mechanism to reset operation according to the reverse rotation command, and to stop the rotation mechanism to reset operation after the reset time is reached, while simultaneously activating the airbag deflation valve to release the gas in the airbag.

8. The hip joint posture correction assistive device according to any one of claims 1-7, characterized in that, The fixing part is connected to the bearing housing at the bottom, and the straightening part is connected to the bearing installed in the bearing housing at the top, thereby realizing the connection between the fixing part and the straightening part.

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