Multi-position fixing and abduction device used after hip replacement
By designing a multi-position fixed abduction device, the problem of difficulty in fixing the abduction device after hip arthroplasty is solved, and effective fixation and adjustment in different positions is achieved, improving the applicability of the device and the comfort of the patient.
Patent Information
- Application Number
- CN202510218891.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-05-23
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The abduction device after hip replacement is difficult to fix when the patient turns over and lie on his side, resulting in shaking of the affected limb and inconvenient bend of the calf, which has limitations and defects.
A multi-position fixing abduction device is designed, including a thigh fixing assembly, an angle adjustment device, a connecting assembly and a calf fixing plate, which can limit leg movement when lying on the back and adjust the angles of the thigh and calf when lying on the side to meet different positional needs.
Effective fixation and adjustment in different positions are achieved, avoiding the problems of shaking of the affected limb and inconvenient bend of the calf, and improving the applicability of the device and the comfort of the patient.
Smart Images
Figure CN120022149A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of medical devices, and in particular to a multi-position fixation and abduction device after hip replacement surgery. Background Art
[0002] Hip replacement, also known as artificial hip arthroplasty, is a reparative surgery that uses surgical methods to replace part or all of the hip joint destroyed by disease or injury with an artificial hip joint to reconstruct the function of the hip joint. The main function of hip replacement is to relieve hip pain, correct hip deformity, and restore and improve the movement function of the hip joint. It is suitable for a variety of hip diseases, such as femoral head necrosis, femoral neck fracture, hip osteoarthritis, congenital acetabular dysplasia, etc. Through hip replacement, patients can regain normal joint mobility, meet daily needs, and improve their quality of life.
[0003] However, for a period of time after hip replacement surgery, patients are often required to maintain a certain body position. The neutral abduction position is beneficial to the stability of the joint. The use of an abduction device can help maintain the joint in this favorable position, promote the balance of muscles around the joint and the normal recovery of blood vessels and nerves. The most commonly used one is a trapezoidal pillow to maintain the patient's neutral abduction position to prevent dislocation, but the commonly used one is easier to fix when the patient is lying flat, but it is not easy to fix when turning over or lying on the side, which has limitations. The specific limitation is that there is no fixation when turning over when lying on the side, and the patient's affected limb is still prone to shaking. At the same time, the patient's calf needs to be bent when lying on the side, and it cannot be fixed after bending. There are still defects to a certain extent.
[0004] Therefore, a multi-position fixation and abduction device after hip replacement is needed to solve the above technical problems. Summary of the invention
[0005] In order to solve the above technical problems, the present invention discloses a multi-position fixation abduction device after hip replacement surgery. The device can restrict the patient's legs when the patient is lying on his back, and can maintain the patient's neutral abduction position. At the same time, the angle of the neutral abduction position can be adjusted as needed, and can adapt to different abduction needs. In addition, after fixation, the device can also adjust and fix the angles of the calf and thigh, and can adapt to the patient's needs of lying on the side, and can assist the patient in lying on the side.
[0006] In order to achieve the above technical effects, the present invention designs a multi-position fixation and abduction device after hip replacement surgery, comprising: a thigh fixation component, an angle adjustment device, a connection component, and a calf fixation plate; the thigh fixation component is installed on both sides of the angle adjustment device, the connection component is movably installed on the outer side wall of the thigh fixation component, and the calf fixation plate is movably installed at the end of the connection component; The angle adjustment device comprises: an upper fixing plate, a lower fixing plate and an arc plate; the end of the upper fixing plate is mounted on the end of the lower fixing plate by rotation, the ends of the upper fixing plate and the lower fixing plate are mounted with the arc plate, and the arc plate is rotatably mounted on an annular groove provided on the side wall of the thigh fixing assembly; an adjusting knob is mounted on the arc plate; the sliding or fixing of the arc plate in the annular groove is adjusted by the adjusting knob; a limit block is fixedly mounted on the middle part of the upper end of the upper fixing plate, and an arc-shaped through hole is provided in the middle part of the limit block; a gear ring is fixedly mounted on the middle part of the side wall of the lower fixing plate, one end of the gear ring is connected to the second motor, and the other end of the gear ring is fixedly mounted in the arc-shaped through hole; the extension or contraction of the gear ring is controlled by controlling the rotation of the second motor to control the rotation, separation or approach of the upper fixing plate and the lower fixing plate; Furthermore, the thigh fixation assembly includes a thigh fixation plate and a stopper; the thigh fixation plate is a non-closed annular structure, and the arc groove is provided on the thigh fixation plate; a plurality of circular holes are provided in a circumferential array on the upper end of the outer wall of the thigh fixation plate, and the stopper is detachably installed on the circular holes; the position of the thigh fixation assembly after the patient rotates is displayed by the set stopper, so as to maintain the stability of the thigh fixation plate; a thigh fixation belt is fixedly installed on the side wall of the thigh fixation plate; Furthermore, the limiting member is of a Y-shaped split design, and two limiting members are provided, which are symmetrically installed on the circular holes respectively; Furthermore, the connecting assembly includes a first motor, a connecting rod, and an electric push rod; the first motor is fixedly mounted on the outer side wall of the calf fixing plate; the connecting rod is sleeved on the output shaft of the first motor, the electric push rod is fixedly connected to the connecting rod, and the end of the connecting rod is movably mounted on the outer side wall of the thigh fixing plate; Furthermore, the calf fixing plate is also a non-closed annular structure, and a calf fixing belt is fixedly installed on the side wall of the calf fixing plate.
[0007] The beneficial effects of the present invention are: The present invention designs a multi-position fixation and abduction device after hip replacement surgery, comprising: a thigh fixation component, an angle adjustment device, a connection component, and a calf fixation plate; the thigh fixation component is installed on both sides of the angle adjustment device, the connection component is movably installed on the outer side wall of the thigh fixation component, and the calf fixation plate is movably installed at the end of the connection component; the angle of the patient's abduction fixation can be adjusted by the angle adjustment component, and a trapezoidal fixation can be achieved during fixation, so that the patient's legs can be restricted when the patient is lying on his back, and the patient's abduction neutral position can be maintained; In addition, through the mutual cooperation between the connecting component, the limit part and the thigh fixing plate, the patient's side-lying and fixation of the side-lying can be achieved, and the bending between the thigh and the calf can be achieved when lying on the side. At the same time, the angle adjustment component can replace the traditional operation of placing a trapezoidal pillow between the thighs when lying on the side, which can meet the patient's needs for side-lying and assist the patient in lying on the side. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for describing the embodiment are briefly introduced below.
[0009] Figure 1 It is a schematic diagram of the overall structure of a multi-position fixation and abduction device after hip replacement; Figure 2 Another overall structural schematic diagram of a multi-position fixation and abduction device after hip replacement; Figure 3 It is a top view of a multi-position fixation and abduction device after hip replacement; Figure 4 An exploded view of a multi-position fixation and abduction device for hip replacement surgery; Figure 5 The present invention is a schematic diagram of the structure of an angle adjustment device of a multi-position fixation abduction device after hip replacement; Figure 6 The present invention is a schematic diagram of the overall structure of a multi-position fixation and abduction device after hip replacement surgery from another perspective.
[0010] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1-thigh fixing assembly, 10-thigh fixing plate, 11-annular groove, 12-thigh fixing belt, 13-limiting piece, 14-round hole, 2-angle adjustment device, 21-upper fixing plate, 211-limiting block, 212-arc through hole, 22-lower fixing plate, 221-second motor, 222-gear ring, 23-rotating shaft, 24-arc plate, 25-adjusting knob, 3-connecting assembly, 31-first motor, 32-connecting rod, 33-electric push rod, 4-calf fixing plate, 41-calf fixing belt, 42-key slot. DETAILED DESCRIPTION Example 1
[0011] A multi-position fixation and abduction device after hip replacement surgery, comprising: a thigh fixation component 1, an angle adjustment device 2, a connection component 3, and a calf fixation plate 4; the thigh fixation component 1 is installed on both sides of the angle adjustment device 2, the connection component 3 is movably installed on the outer side wall of the thigh fixation component 1, and the calf fixation plate 4 is movably installed at the end of the connection component 3; the angle of the patient's abduction fixation can be adjusted by the angle adjustment component, and a trapezoidal fixation can be achieved during fixation, so that the patient's legs can be restricted when the patient is lying on his back, and the patient's abduction neutral position can be maintained; Specifically, the angle adjustment device 2 includes: an upper fixing plate 21, a lower fixing plate 22, and an arc plate 24; the end of the upper fixing plate 21 is mounted on the end of the lower fixing plate 22 by rotation, the end of the upper fixing plate 21 and the end of the lower fixing plate 22 are mounted with the arc plate 24, and the arc top plate is rotatably mounted on the annular groove 11 provided on the side wall of the thigh fixing component 1, and the mounting method is a limited rotation mounting (such as a slotted limited mounting, not shown in the figure); an adjusting knob 25 is mounted on the arc plate 24, and the sliding or fixing of the arc plate 24 in the annular groove 11 is adjusted by the adjusting knob 25, and the adjusting knob 25 is rotatably connected by a thread; a limited block 21 is fixedly mounted on the middle part of the upper end of the upper fixing plate 21 1. An arc-shaped through hole 212 is opened in the middle of the limit block 211; a gear ring 222 is fixedly installed in the middle of the side wall of the lower fixed plate 22, one end of the gear ring 222 is connected to the second motor 221, and the other end of the gear ring 222 is fixedly installed in the arc-shaped through hole 212; the extension or contraction of the gear ring 222 is controlled by controlling the rotation of the second motor 221 to control the rotation, separation or approach of the upper fixed plate 21 and the lower fixed plate 22; the second motor 221 and the gear ring 222 are connected in such a way that a gear is fixedly installed at the end of the second motor 221 (inside the lower fixed plate 22, not shown in the figure), the gear is meshed on the gear ring 222, and the rotation of the gear ring 222 is controlled by the rotation of the second motor 221 and the gear driven to rotate. Example 2
[0012] In this embodiment, based on the thigh fixation component 1 described in Embodiment 1, the thigh fixation component 1 can be fixed on the patient's thigh through the set thigh fixation component 1, and the thigh fixation component 1 includes a thigh fixation plate and a limiter 13; the thigh fixation plate is a non-closed annular structure, and the non-closed structure setting gives the thigh fixation plate a certain elastic range, which can adapt to the size of the legs of most patients, and at the same time, a thigh fixation belt 12 is fixedly installed on the side wall of the large fixation plate, and the thigh fixation belt 12 can be further fixed; the arc groove is provided on the thigh fixation plate; a plurality of circular holes 14 are provided in a circumferential array on the upper end of the outer wall of the thigh fixation plate, and the limiter 13 is detachably installed on the circular hole 14; the set limiter 13 shows the position of the thigh fixation component 1 after the patient rotates, so as to keep the stability of the thigh fixation plate; Specifically, the limiting member 13 is of a Y-shaped split design, and two limiting members 13 are provided, which are symmetrically installed on the circular holes 14 respectively; the Y-shaped design can effectively form support on the bed, and by providing two limiting members 13 that can be stabilized on both sides of the thigh fixing plate, the patient can remain stable after lying on his side. Example 3
[0013] In this embodiment, based on the connection component 3 described in Example 1, the thigh fixing plate and the calf fixing plate 4 can be connected by the set connection component 3, and the patient's knee can be adjusted to flex and extend when the patient is lying on his side, so as to ensure the patient's side-lying posture requirements; the specific connection component 3 includes a first motor 31, a connecting rod 32, and an electric push rod 33; the first motor 31 is fixedly installed on the outer wall of the calf fixing plate 4, and here the output shaft of the first motor 31 is fixedly connected to the calf fixing plate 4; the connecting rod 32 is sleeved on the output shaft of the first motor 31 The electric push rod 33 is fixedly connected to the connecting rod 32, and the electric push rod 33 is arranged on the electric push rod 33, which is equivalent to controlling the extension and retraction of the connecting rod 32 through the electric push rod 33. Only when it is extended and retracted can the adjustment be achieved. The connecting rod 32 can also be equivalently designed as a telescopic rod, and the end of the connecting rod 32 is movably mounted on the outer wall of the thigh fixing plate; at the same time, in this embodiment, the calf fixing plate 4 is also a non-closed annular structure, and a calf fixing belt 41 is fixedly mounted on the side wall of the calf fixing plate 4. The design principle is consistent with that of the thigh fixing plate, and no further explanation is given here.
[0014] In addition, in this embodiment, the control panel and power supply for controlling the motor are both indicated in the diagram. Since it is a conventional setting for people in this field, it can be carried out through external connection and belongs to the prior art, and no further explanation is given here. Example 4
[0015] In this embodiment, the process of the patient lying on the side is further explained. When lying on the side, the adjusting knob 25 is first rotated to make the arc plate 24 slide on the annular groove 11. At the same time, since the connecting device in the device is arranged on both sides, but the hip joint replacement is generally unilateral, the connecting component 3 and the calf fixing plate 4 on one side can be removed for the patient to lie on the side, and the limiting members 13 are inserted and fixed in sequence. It is necessary to insert one before the rotation and another after the rotation to form a limit after the rotation; then the thigh fixing plate is rotated, and the patient is allowed to lie on the side gradually. After the patient reaches a suitable position, the adjusting knob 25 is rotated to fix the patient, and then the rotation of the first motor 31 is controlled to bend the knee, and then the extension and retraction of the electric push rod 33 is controlled to make the thigh and calf close to each other to ensure the side-lying position requirement. Therefore, the adjustment of the patient's side-lying position is achieved through the mutual coordination of the calf fixing plate 4, the thigh fixing component 1 and the connecting component 3.
[0016] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described.
Claims
1. A multi-position fixation and abduction device after hip replacement, characterized in that: It comprises a thigh fixing assembly, an angle adjustment device, a connecting assembly, and a calf fixing plate; the thigh fixing assembly is installed on both sides of the angle adjustment device, the connecting assembly is movably installed on the outer side wall of the thigh fixing assembly, and the calf fixing plate is movably installed at the end of the connecting assembly; The angle adjustment device comprises: an upper fixing plate, a lower fixing plate, and an arc plate; The end of the upper fixing plate is mounted on the end of the lower fixing plate by rotation, and the ends of the upper fixing plate and the lower fixing plate are mounted with the arc plate, which is rotatably mounted on an annular groove provided on the side wall of the thigh fixing assembly; an adjusting knob is mounted on the arc plate; the sliding or fixing of the arc plate in the annular groove is adjusted by the adjusting knob; a limit block is fixedly mounted on the middle part of the upper end of the upper fixing plate, and an arc-shaped through hole is provided in the middle part of the limit block; a gear ring is fixedly mounted on the middle part of the side wall of the lower fixing plate, one end of the gear ring is connected to the second motor, and the other end of the gear ring is fixedly mounted in the arc-shaped through hole; the extension or contraction of the gear ring is controlled by controlling the rotation of the second motor to control the rotation, separation or approach of the upper and lower fixing plates.
2. The multi-position fixation and abduction device after hip replacement according to claim 1, characterized in that: The thigh fixation assembly includes a thigh fixation plate and a limiting member; the thigh fixation plate is a non-closed annular structure, and the arc groove is provided on the thigh fixation plate; a plurality of circular holes are provided in a circumferential array on the upper end of the outer wall of the thigh fixation plate, and the limiting member is detachably mounted on the circular holes; the position of the thigh fixation assembly after the patient's rotation is displayed by the provided limiting member, so as to maintain the stability of the thigh fixation plate; a thigh fixing belt is fixedly mounted on the side wall of the thigh fixation plate.
3. The multi-position fixation and abduction device after hip replacement according to claim 1, characterized in that: The limiting member is of a Y-shaped split-fork design, and two limiting members are provided, which are symmetrically installed on the circular holes.
4. The multi-position fixation and abduction device after hip replacement according to claim 1, characterized in that: The connecting assembly includes a first motor, a connecting rod, and an electric push rod; the first motor is fixedly mounted on the outer side wall of the calf fixing plate; the connecting rod is sleeved on the output shaft of the first motor, the electric push rod is fixedly connected to the connecting rod, and the end of the connecting rod is movably mounted on the outer side wall of the thigh fixing plate.
5. The multi-position fixation and abduction device after hip replacement according to claim 1, characterized in that: The calf fixing plate is also a non-closed annular structure, and a calf fixing belt is fixedly installed on the side wall of the calf fixing plate.