Auxiliary moving device for hip replacement
By designing an assistive device for hip replacement surgery, utilizing flip-over and gas cushioning technology, the device helps patients sit down slowly, solving the balance problem when sitting down after hip replacement surgery and reducing the stress on the hip joint and prosthesis wear.
Patent Information
- Application Number
- CN202511359558.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2025-11-11
AI Technical Summary
Patients undergoing hip replacement surgery often experience difficulty maintaining balance while sitting during rehabilitation, leading to hip joint damage. Furthermore, existing walking aids exert significant reaction force when sitting, which can easily cause joint injury.
An assistive device for hip replacement surgery was designed, comprising a fixation mechanism, a pressing mechanism, a squeezing mechanism, and a locking mechanism. The device assists the patient to sit down slowly through the flipping of the flap and the cushioning of air flow, and the locking mechanism prevents the seat cushion from sliding, thereby reducing the burden on the hip joint.
It effectively reduces the stress on the hip joint when patients sit down after hip replacement surgery, prevents joint dislocation and prosthesis wear, and reduces physical injury during rehabilitation training.
Smart Images
Figure CN120919595A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of assistive devices for hip replacement surgery, specifically an assistive device for hip replacement surgery. Background Technology
[0002] There are many issues to be aware of after hip replacement surgery. In the early stages, the joint and soft tissue scars have not yet healed, so the main focus during rehabilitation is to prevent joint dislocation. At the same time, it is necessary to cooperate with joint range of motion and joint muscle strength training. During the rehabilitation process, rehabilitation technicians or rehabilitation doctors need to assist patients in rehabilitation training. Different joint range of motion and joint muscle strength training should be carried out according to different stages of rehabilitation.
[0003] During training, walking aids are mostly used. When users need to rest on the walking aid, they need to pull down the seat cushion before resting. Sitting down requires the coordinated movement of the hip joint, knee joint, and lumbar spine. The hip joint is a necessary joint for controlling the body's center of gravity. After surgery, the muscles around the hip joint are damaged, making it difficult for patients to maintain their balance when sitting down. They will quickly sit on the seat cushion, and the reaction force generated by the seat cushion will cause a large impact on the patient's wound, causing significant damage to the joint. In response to the above problems, the following solutions are proposed. Summary of the Invention
[0004] To solve the above-mentioned technical problems, the present invention provides an auxiliary activity device for hip replacement surgery, including a fixation mechanism, the fixation mechanism further including a frame, a connecting column fixedly connected to the outer wall of the frame, a frame leg fixedly connected to the outer wall of the frame, and a roller rotatably connected to the outer wall of the frame. The pressing mechanism is fixedly connected to the outer wall of the frame and is used to assist the user in sitting down.
[0005] The extrusion mechanism is fixedly connected to the outer wall of the frame and is used to decelerate the device. The locking mechanism is fixedly connected to the outer wall of the frame and is used for locking devices.
[0006] Preferably, the pressing mechanism includes: The pressing assembly is fixedly connected to the outer wall of the frame body by fasteners; The fasteners include a cushion that is rotatably connected to the outer wall of the frame, a flap that is rotatably connected to the inner wall of the cushion, and five fixing blocks that are fixedly connected to the outer wall of the flap. The telescopic assembly is rotatably connected to the inner wall of the fixed block via a contact element. The contact element includes a rotating bar rotatably connected to the outer wall of the fixed block, a pressure block rotatably connected to the outer wall of the rotating bar, and a hollow block slidably connected to the outer wall of the pressure block; Preferably, the extrusion mechanism includes: The thrust assembly is slidably connected to the inner wall of the seat cushion through-hole via a flow element; The water flow component includes a baffle plate that is slidably connected to the inner wall of the seat cushion through hole, and a spring that is fixedly connected to the outer wall of the baffle plate and the inner wall of the seat cushion through hole. A ventilation assembly, which is fixedly connected to the inner wall of the through hole of the empty block via a rotating component; The rotating component includes a ventilation plate rotatably connected to the inner wall of the through hole of the empty block, and a large ventilation plate is fixedly connected to the inner wall of the through hole of the empty block. Preferably, the locking mechanism includes: The locking component is rotatably connected to the inner wall of the rotating shaft via an extrusion member; The extrusion component includes a rotating buckle rotatably connected to the inner wall, and a torsion spring fixedly connected to the outer wall of the rotating shaft; The rotating assembly is fixedly connected to the outer wall of the frame via a stacking component. The extrusion component includes a columnar strip fixedly connected to the outer wall of the frame, an extrusion block fixedly connected to the outer wall of the columnar strip, and a small spring fixedly connected to the outer wall of the extrusion block; Preferably, the pressing component includes a fixed connection between the outer wall of the seat cushion and the outer wall of the empty block; Preferably, the telescopic component includes a hole at the bottom of the seat cushion located at the bottom of the empty block; Preferably, the thrust assembly includes a fixed platform that is slidably connected to the outer wall of the cylindrical strip; Preferably, the ventilation assembly includes a movable platform that slides along the outer wall of the columnar strip; Preferably, the locking component includes a slide groove fixedly connected to the outer wall of the frame; Preferably, the rotating component includes a locking block fixedly connected to the outer wall of the rotating buckle.
[0007] The present invention has the following beneficial effects: (1) In this invention, the flip plate is initially tilted. When the user sits down, the flip plate rotates on the cushion to assist the user in sitting down. When the flip plate flips, the pressure block compresses the air inside the empty block, causing the ventilation plate connected to the inner wall of the empty block to be in a vertical state, opening a small hole in the inner wall of the cushion's through hole, allowing the compressed gas to enter the inner wall of the cushion's through hole. The gas entering the inner wall of the cushion's through hole will push the blocking plate to compress the spring, thereby causing the flip plate to fall slowly. In this way, the speed at which the patient sits down is slowed down, preventing the patient's body from contacting the cushion too quickly, and avoiding the reaction force from the cushion causing significant damage to the artificial joint.
[0008] (2) When the patient sits down, the torsion spring on the inner wall of the pivot is compressed, and the rotating buckle on the pivot begins to rotate. The locking block on the rotating buckle passes the fixed platform on the inner wall of the frame. When the locking block passes the inclined plane on the fixed platform, the locking block retracts towards the inner wall of the locking block through the spring on the inner wall of the locking block. The rotating buckle continues to rotate, causing the locking block to contact the moving platform, which then moves the moving platform downwards, thus locking the seat cushion. This method prevents the patient from having to continuously exert force on the hip joint to prevent the seat cushion from sliding when it is not locked, thus increasing the burden on the artificial joint.
[0009] (3) When the user is no longer using the cushion, the legs apply a downward force to the front end of the cushion, causing the rotating buckle to rotate again. This allows the locking block to move the platform downwards along with the locking block. As the platform passes the protrusion on the pressing block, the locking block pushes the locking block into the locking block. At this point, the platform is no longer pressed by the locking block and is directly reset by the small spring. This allows the user to quickly reset the cushion, preventing repeated bending over during cushion storage from causing damage to the body structure.
[0010] (4) When the user is about to stand up, the spring will push the blocking plate to reset due to the weight reduction, and push the gas into the empty block again, so that the pressure block rises slowly and the flip plate returns to the initial state. The elastic potential energy stored in the rotating shaft flips the cushion up. In this way, the movement of the flip plate can assist the user in standing up, which can reduce the force on the waist and prevent excessive force when standing, thus preventing the prosthesis from being worn. Attached Figure Description
[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the extrusion mechanism of the present invention; Figure 3 This is a schematic diagram of the overall structure of the pressing mechanism of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle; Figure 6 This is a schematic diagram of the side structure of the frame of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point E in the middle; Figure 8 For the present invention Figure 6 Enlarged diagram at point F; Figure 9 This is a schematic diagram of the overall structure of the flip plate of the present invention; Figure 10 For the present invention Figure 9 Enlarged diagram of point D in the middle.
[0013] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Fixing mechanism; 12. Frame leg; 13. Roller; 14. Connecting column; 15. Frame body; 16. Rotating shaft; 2. Pressing mechanism; 21. Pressing assembly; 211. Flip plate; 213. Fixing block; 212. Cushion; 22. Telescopic assembly; 221. Rotating bar; 222. Pressing block; 223. Empty block; 3. Extrusion mechanism; 31. Thrust assembly; 311. Spring; 312. Blocking plate; 313. Fixing platform; 32. Ventilation assembly; 321. Ventilation plate; 322. Large ventilation plate; 323. Moving platform; 4. Locking mechanism; 41. Locking assembly; 411. Rotary buckle; 412. Torsion spring; 413. Slide groove; 42. Rotating assembly; 421. Columnar bar; 422. Extrusion block; 423. Small spring; 424. Locking block. Detailed Implementation
[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0015] Example 1, please refer to Figures 1-6 The present invention is an auxiliary activity device for hip replacement surgery, including a fixation mechanism 1, the fixation mechanism 1 further including a frame 15, a connecting column 14 fixedly connected to the outer wall of the frame 15, a frame leg 12 fixedly connected to the outer wall of the frame 15, and a roller 13 rotatably connected to the outer wall of the frame 15. Pressing mechanism 2, which is fixedly connected to the outer wall of frame 15, is used to assist the user in sitting down; The extrusion mechanism 3 is fixedly connected to the outer wall of the frame 15 and is used to decelerate the device. Locking mechanism 4 is fixedly connected to the outer wall of frame 15 and is used to lock the device. The pressing mechanism 2 includes: Pressing component 21, which is fixedly connected to the outer wall of frame 15 by fasteners; The fastener includes a cushion 212 rotatably connected to the outer wall of the frame 15, a flap 211 rotatably connected to the inner wall of the cushion 212, and five fixing blocks 213 fixedly connected to the outer wall of the flap 211. Telescopic component 22, which is rotatably connected to the inner wall of fixed block 213 via a contact member; The contact element includes a rotating bar 221 rotatably connected to the outer wall of the fixed block 213. A pressure block 222 is rotatably connected to the outer wall of the rotating bar 221. A hollow block 223 is slidably connected to the outer wall of the pressure block 222. When the flip plate 211 is flipped, the pressure block 222 will compress the air inside the hollow block 223, which will cause the ventilation plate 321 rotatably connected to the inner wall of the hollow block 223 to be in a vertical state.
[0016] Example 2, please refer to Figures 4-10 This invention relates to an assistive device for hip replacement surgery. Based on Example 1, the compression mechanism 3 includes: The thrust assembly 31 is slidably connected to the inner wall of the through hole of the seat cushion 212 via a water flow component; The water flow component includes a baffle plate 312 that is slidably connected to the inner wall of the through hole of the cushion 212, and a spring 311 is fixedly connected to the outer wall of the baffle plate 312 and the inner wall of the through hole of the cushion 212. Ventilation component 32, which is fixedly connected to the inner wall of the through hole of the empty block 223 via a rotating component; The rotating component includes a ventilation plate 321 rotatably connected to the inner wall of the through hole of the empty block 223. A large ventilation plate 322 is fixedly connected to the inner wall of the through hole of the empty block 223. The locking block 424 contacts the moving platform 323, causing the moving platform 323 to move downward, which can lock the seat cushion.
[0017] The locking mechanism 4 includes: Locking component 41, which is rotatably connected to the inner wall of rotating shaft 16 via a pressing member; The extrusion component includes a rotating buckle 411 rotatably connected to the inner wall of 16, and a torsion spring 412 is fixedly connected to the outer wall of the rotating shaft 16. Rotating component 42, which is fixedly connected to the outer wall of frame 15 by a pressing component; The extrusion component includes a columnar strip 421 fixedly connected to the outer wall of the frame 15. An extrusion block 422 is fixedly connected to the outer wall of the columnar strip 421. A small spring 423 is fixedly connected to the outer wall of the extrusion block 422. The torsion spring 412 on the inner wall of the rotating shaft 16 will be extruded, and the rotating buckle 411 on the rotating shaft 16 will also start to rotate. The locking block 424 on the rotating buckle 411 will pass through the fixed platform 313 on the inner wall of the frame 15.
[0018] The pressing component 21 includes a fixed connection between the outer wall of the seat cushion 212 and the outer wall of the empty block 223. Since the initial flip plate 211 is in an inclined state, the flip plate 211 will rotate on the seat cushion 212 when the user sits down.
[0019] The telescopic component 22 includes a hole at the bottom of the seat cushion 212 located at the bottom of the empty block 223; this will cause the spring 311 to push the blocking plate 312 to reset, pushing the gas back into the empty block 223, causing the pressure block 222 to rise slowly.
[0020] The thrust assembly 31 includes a fixed platform 313 that is slidably connected to the outer wall of the column 421. When the rotating buckle 411 rotates, the locking block on the locking block 424 will contact the moving platform 323, causing the moving platform 323 to move downward as well.
[0021] The ventilation assembly 32 includes a movable platform 323 that is slidably connected to the outer wall of the columnar strip 421. The gas in the inner wall of the through hole of the cushion 212 will push the baffle plate 312 to compress the spring 311, thereby causing the flip plate 211 to fall slowly.
[0022] The locking component 41 includes a slide groove 413 fixedly connected to the outer wall of the frame 15. The rotating buckle 411 rotates again, causing the locking block 424 to move the moving platform 323 downward together.
[0023] The rotating assembly 42 includes a locking block 424 fixedly connected to the outer wall of the rotating buckle 411. When the locking block 424 is pushed into the interior of the locking block 424, the moving stage 323 will no longer be squeezed by the locking block 424.
[0024] A specific application of this embodiment is as follows: When the user needs to rest, the seat cushion 212 can be flipped down. The torsion spring 412 on the inner wall of the pivot 16 will be compressed, and the rotating buckle 411 on the pivot 16 will also start to rotate. The locking block 424 on the rotating buckle 411 will pass the fixed platform 313 on the inner wall of the frame 15. When the locking block 424 passes the inclined surface on the fixed platform 313, the locking block 424 will retract towards the inner wall of the locking block 424 by the spring on the inner wall of the locking block 424. When the rotating buckle 411 continues to rotate, the locking block 424 will contact the moving platform 323, causing the moving platform 323 to move downward as well. At this time, the user can sit down. When the user is no longer using the seat cushion, they can apply a downward force to the front end of the seat cushion 212 with their legs, causing the rotating buckle 411 to rotate again. This causes the locking block 424 to move the moving platform 323 downwards along with the locking block 424. The protrusion on the pressing block 422 pushes the locking block 424 into the locking block 424. At this point, the moving platform 323 will no longer be squeezed by the locking block 424 and will be reset directly by the small spring 423. When the user releases their hand, the elastic potential energy stored in the torsion spring will cause the rotating shaft 16 to quickly reset the seat cushion 212. This allows the user to quickly reset the seat cushion 212 and prevents repeated bending from damaging the human body structure.
[0025] When the user sits down, the initial flip-board 211 is tilted. As the user sits down, the flip-board 211 rotates on the seat cushion 212. The user's thighs will first come into contact with the outer wall of the flip-board 211, assisting the user in sitting down. At this time, the buttocks are supported by the flip-board 211. This allows the force point to shift from the buttocks to the thighs during the downward sitting process. In this way, the stress points on the hip joint are reduced, preventing dislocation of the artificial joint or wear and tear of the prosthesis, which would affect its service life.
[0026] When the user sits down, the flip plate 211 flips over, causing the pressure block 222 to compress the air inside the empty block 223. This causes the ventilation plate 321, which is rotatably connected to the inner wall of the empty block 223, to be in a vertical position, opening a small hole in the inner wall of the through hole of the seat cushion 212. The compressed gas then enters the inner wall of the through hole of the seat cushion 212. The gas entering the inner wall of the through hole of the seat cushion 212 pushes the baffle plate 312 to compress the spring 311, causing the flip plate 211 to fall slowly. In this way, the user sits down slowly, preventing larger users from being injured by the rapid fall of the flip plate 211 when they sit down.
[0027] When the user prepares to stand up, the reduced weight causes the spring 311 to push the blocking plate 312 back to its original position, pushing the gas back into the empty block 223. This causes the pressure block 222 to rise slowly, allowing the flip plate 211 to return to its initial state. The elastic potential energy stored inside the pivot 16 then flips the cushion 212 back up, completing the storage process. In this way, the movement of the flip plate 211 assists the user in standing up, reducing the strain on the lower back and preventing excessive force that could cause wear and tear on the prosthesis.
[0028] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims
1. A hip replacement surgery assistive device, comprising a fixation mechanism (1), the fixation mechanism (1) further comprising a frame (15), a connecting column (14) fixedly connected to the outer wall of the frame (15), a frame leg (12) fixedly connected to the outer wall of the frame (15), and a roller (13) rotatably connected to the outer wall of the frame (15). Its features are, Also includes: The pressing mechanism (2) is fixedly connected to the outer wall of the frame (15) to assist the user in sitting down; The extrusion mechanism (3) is fixedly connected to the outer wall of the frame (15) and is used to decelerate the device; Locking mechanism (4) is fixedly connected to the outer wall of the frame (15) for locking the device.
2. The hip replacement surgery assistive device according to claim 1, characterized in that: The pressing mechanism (2) includes: The pressing assembly (21) is fixedly connected to the outer wall of the frame (15) by a fastener; The fasteners include a cushion (212) rotatably connected to the outer wall of the frame (15), a flap (211) rotatably connected to the inner wall of the cushion (212), and five fixing blocks (213) fixedly connected to the outer wall of the flap (211). Telescopic assembly (22), which is rotatably connected to the inner wall of fixed block (213) via a contact member; The contact element includes a rotating strip (221) on the outer wall of a rotating connection fixing block (213), a pressure block (222) is rotatably connected to the outer wall of the rotating strip (221), and a hollow block (223) is slidably connected to the outer wall of the pressure block (222).
3. The hip replacement surgery assistive device according to claim 2, characterized in that: The extrusion mechanism (3) includes: The thrust assembly (31) is slidably connected to the inner wall of the through hole of the seat cushion (212) via a water flow component; The water flow component includes a baffle plate (312) that is slidably connected to the inner wall of the through hole of the cushion (212), and a spring (311) is fixedly connected to the outer wall of the baffle plate (312) and the inner wall of the through hole of the cushion (212). Ventilation assembly (32), the ventilation assembly (32) being fixedly connected to the inner wall of the through hole of the empty block (223) via a rotating component; The rotating component includes a ventilation plate (321) rotatably connected to the inner wall of the through hole of the empty block (223), and a large ventilation plate (322) is fixedly connected to the inner wall of the through hole of the empty block (223).
4. The hip replacement surgery assistive device according to claim 3, characterized in that: The locking mechanism (4) includes: Locking component (41), which is rotatably connected to the inner wall of the rotating shaft (16) via a pressing member; The extrusion member includes a rotating buckle (411) rotatably connected to the inner wall of the rotating shaft (16), and a torsion spring (412) is fixedly connected to the outer wall of the 16. Rotating assembly (42), which is fixedly connected to the outer wall of the frame (15) by a stacking component; The extrusion component includes a columnar strip (421) fixedly connected to the outer wall of the frame (15), an extrusion block (422) fixedly connected to the outer wall of the columnar strip (421), and a small spring (423) fixedly connected to the outer wall of the extrusion block (422).
5. The hip replacement surgery assistive device according to claim 4, characterized in that: The pressing component (21) includes a fixed connection between the outer wall of the cushion (212) and the outer wall of the empty block (223).
6. The hip replacement surgery assistive device according to claim 5, characterized in that: The telescopic component (22) includes a hole at the bottom of the seat cushion (212) located at the bottom of the empty block (223).
7. The hip replacement surgery assistive device according to claim 6, characterized in that: The thrust assembly (31) includes a fixed platform (313) that is slidably connected to the outer wall of the column (421).
8. The hip replacement surgery assistive device according to claim 7, characterized in that: The ventilation assembly (32) includes a movable platform (323) that is slidably connected to the outer wall of the column (421).
9. The hip replacement surgery assistive device according to claim 8, characterized in that: The locking assembly (41) includes a groove (413) fixedly connected to the outer wall of the frame (15).
10. The hip replacement surgery assistive device according to claim 9, characterized in that: The rotating assembly (42) includes a locking block (424) fixedly connected to the outer wall of the rotating buckle (411).