CN-121221339-B - Hip joint posture correction auxiliary equipment

CN121221339BCN 121221339 BCN121221339 BCN 121221339BCN-121221339-B

Abstract

The invention discloses hip joint posture correction auxiliary equipment, which relates to the technical field of medical equipment and comprises a fixing part, a correction part, a rotating mechanism, a sensor, a processor and a controller, wherein the sensor is used for detecting knee joint angle sequence signals of inward deflection of knee joints at different moments in each walking cycle in real time, the processor is used for extracting standing phase knee joint angle sequence signals corresponding to the moments in standing phase in each walking cycle from the knee joint angle sequence signals if the knee joint angle sequence signals of inward deflection of the knee joints at different moments in the continuous multiple walking cycles are received in a period of time, determining correction time required for correcting the hip joints or the knee joints by utilizing the standing phase knee joint angle sequence signals corresponding to the moments in each walking cycle, and generating a rotating instruction, and the controller is used for starting the rotating mechanism to operate according to the rotating instruction and stopping the rotating mechanism after the correction time arrives.

Inventors

WANG CUI
LI YIFANG
ZHANG YUNBO
WU YAQING
LI WENZHU
ZHOU SIYI
WU WENLEI

Assignees

北京大学第一医院(北京大学第一临床医学院)

Dates

Publication Date: 20260508
Application Date: 20251016

Claims (8)

1. A hip posture correction aid device, comprising: a fixing part arranged at the waist and around the thigh root; a correcting part which is arranged below the fixing part and can drive the thigh to rotate; The rotating mechanism is arranged below the fixed part and above the correcting part and is used for driving the correcting part to rotate relative to the fixed part during starting operation, so that the thigh part is driven to rotate in the direction opposite to the inward offset of the knee joint until the knee joint faces to the right front and is positioned below the hip joint; The sensor is arranged on the knee joint part and is used for detecting knee joint angle sequence signals of inward deflection of the knee joint at different moments in each walking cycle in real time; The processor is arranged at the outer side of the fixing part or the correcting part and is used for extracting standing phase knee joint angle sequence signals corresponding to a plurality of moments in a standing phase in each walking cycle from the knee joint angle sequence signals if knee joint angle sequence signals which are deflected inwards at different moments in a plurality of continuous walking cycles are received in a period of time, and determining correction time required by the rotating mechanism for correcting the hip joint or the knee joint by utilizing the standing phase knee joint angle sequence signals corresponding to the moments in each walking cycle, so as to generate a rotating instruction for driving the rotating mechanism to operate; The controller is arranged at the outer side of the fixed part or the correcting part and is used for starting the rotating mechanism to operate according to the rotating instruction and stopping the rotating mechanism to operate after the correcting time is reached; The processor is specifically configured to analyze knee angle sequence signals of inward shift of the knee joint at different moments in each walking cycle sent by the sensor, extract standing phase knee joint angle sequence signals corresponding to a plurality of moments in standing phase in each walking cycle from the knee angle sequence signals of inward shift of the knee joint at different moments in each walking cycle, and calculate average standing phase knee joint angle sequence signals corresponding to a plurality of moments in each walking cycle to obtain average standing phase knee joint angle values; the processor is specifically configured to calculate an angle value to be adjusted by the hip joint or the knee joint according to the average standing phase knee joint angle value and a preset reference standing phase knee joint angle value, and determine a correction time required by the rotation mechanism for correcting the hip joint or the knee joint based on the angle value and a rotation speed of the rotation mechanism.
2. The hip posture correction assistive device according to claim 1, further comprising: The air bag is arranged at the inner side of the correcting part and is used for filling a gap between the correcting part and the thigh so as to ensure that the correcting part drives the thigh to rotate together; The air pump is arranged below the correction part and is used for inflating the air bag; one end of the inflation and deflation pipeline is connected with the air pump, and the other end of the inflation and deflation pipeline is connected with the air bag; the air bag deflating valve is arranged on the inflating and deflating pipeline and is used for deflating the air in the air bag.
3. The hip posture correction assistive device according to claim 2, wherein the processor is further configured to generate an inflation instruction including a set inflation time and for driving the air pump to operate if a knee angle sequence signal of inward shift of the knee joint at different times in a continuous plurality of walking cycles is received within a period of time.
4. The hip posture correction assistive device according to claim 3, wherein the controller is further configured to activate the air pump to inflate the air bag in accordance with the inflation instruction, and to stop the air pump from inflating the air bag after the set inflation time has elapsed.
5. The hip joint posture correcting aid device according to claim 1, wherein when the rotating mechanism is a rotating motor and a gear, the rotating motor is fixedly arranged below the fixed part; Correspondingly, the rotating mechanism is specifically used for driving the external teeth to rotate by the rotation of the gear during the starting operation, and driving the correcting part to rotate relative to the fixing part, so that the thigh part is driven to rotate in the direction opposite to the inward offset direction of the knee joint until the knee joint faces to the front and is positioned below the hip joint.
6. The hip posture correcting aid device according to claim 5, wherein when the rotating mechanism is a rotating electric push rod, a reset electric push rod and a triangular projection, the rotating mechanism is specifically configured to drive the correcting portion to rotate relative to the fixing portion by applying a force to a first inclined surface of the triangular projection during a start operation, thereby driving the thigh portion to rotate in a direction opposite to the inward offset of the knee joint, while the reset electric push rod is kept in place until the knee joint faces straight ahead and is located below the hip joint; The triangular protruding block is positioned above the correcting part, a first inclined plane of the triangular protruding block is positioned below the rotating electric push rod, and a second inclined plane of the triangular protruding block is positioned below the resetting electric push rod.
7. The hip posture correction assistive device according to claim 2, further comprising: a reset button arranged on the fixing part or the correcting part; Correspondingly, the processor is also used for generating a reverse rotation instruction which comprises reset time and is used for driving the rotating mechanism to reset and generating a deflation instruction which is used for driving the air bag deflation valve to operate when receiving the pressing operation of the reset button, wherein the reset time is the same as the correction time; The controller is also used for starting the reset operation of the rotating mechanism according to the reverse rotation instruction, stopping the reset operation of the rotating mechanism after the reset time is reached, and simultaneously starting the air bag air release valve to release the air in the air bag.
8. The hip posture correction aid device according to any one of claims 1 to 7, wherein the fixing portion is connected below to a bearing housing while the correction portion is connected above to a bearing mounted in the bearing housing, thereby achieving connection of the fixing portion to the correction portion.

Description

Hip joint posture correction auxiliary equipment Technical Field The invention relates to the technical field of medical equipment, in particular to hip joint posture correction auxiliary equipment. Background Cerebral palsy is abbreviated as cerebral palsy, and is the most common disease of children causing physical movement dysfunction. Cerebral palsy is caused by non-progressive damage to the developing fetal or infant brain, but its resulting musculoskeletal sequelae are progressive and lifelong. The size, shape and strength characteristics of bones and joints are determined by genetics, bone growth, and muscle and forces exerted on the bones. In children with cerebral palsy, initially static brain injury leads to spasticity/dystonia and weak muscle strength, resulting in abnormal muscle strength acting on developing bones, which affects bone morphology and may lead to progressive hip displacement, scoliosis and bone weakness. The development important age of the hip joint is 1-8 years old, which is the important age for prognosis of the hip joint diseases of children and also the important age which can be corrected. About 1/3 of children with cerebral palsy may experience hip subluxation or dislocation. The hip joint posture failure is important content of attention and treatment for cerebral palsy children, and takes hip joint buckling, adduction and pronation as main abnormal gait postures, is a high risk factor causing hip joint dysplasia, subluxation or dislocation, and is also one of important causes of hip joint pain, osteoarthropathy and life quality reduction of patients in later stages. However, for abnormal postures of the hip joint, physical treatment is generally adopted to maintain the range of motion of soft tissues, and surgical treatment is required after the problem of secondary bone joint. There is currently no aid for the above-mentioned abnormal posture of the hip joint. It is therefore important for children with cerebral palsy how to better prevent hip dysplasia or dislocation and promote near normal development of the hip. Thus, there is an urgent need for an accessory that is easy to wear, easily available to the home, and that can be used to assist in correcting the hip joint. Disclosure of Invention The invention provides hip joint posture correction auxiliary equipment, which aims to solve the technical problem of better preventing hip joint dysplasia or dislocation and promoting hip joint to approach normal development. The embodiment of the invention provides hip joint posture correction assistive device, which comprises: a fixing part arranged at the waist and around the thigh root; a correcting part which is arranged below the fixing part and can drive the thigh to rotate; the rotating mechanism is arranged below the fixed part and above the correcting part and is used for driving the correcting part to rotate relative to the fixed part; The sensor is arranged on the knee joint part and is used for detecting knee joint angle sequence signals of inward deflection of the knee joint at different moments in each walking cycle in real time; The processor is arranged at the outer side of the fixing part or the correcting part and is used for extracting standing phase knee joint angle sequence signals corresponding to a plurality of moments in a standing phase in each walking period from the knee joint angle sequence signals if knee joint angle sequence signals of different moments in a plurality of continuous walking periods are received in a period of time, determining correction time required by the rotating assembly for correcting the hip joint or the knee joint and generating a rotating instruction for driving the rotating mechanism to operate by utilizing the standing phase knee joint angle sequence signals corresponding to the moments in each walking period; and the controller is arranged at the outer side of the fixed part or the correcting part and is used for starting the running of the rotating structure according to the rotating instruction and stopping the running of the rotating structure after the correcting time is reached. Preferably, the method further comprises: The air bag is arranged at the inner side of the correcting part and is used for filling a gap between the correcting part and the thigh so as to ensure that the correcting part drives the thigh to rotate together; The air pump is arranged below the correction part and is used for inflating the air bag; one end of the inflation and deflation pipeline is connected with the air pump, and the other end of the inflation and deflation pipeline is connected with the air bag; the air bag deflating valve is arranged on the inflating and deflating pipeline and is used for deflating the air in the air bag. Preferably, the processor is further configured to generate an inflation instruction including a set inflation time and configured to drive the air pump to operate if a knee angle sequence signal of inward sh