A rehabilitation chair for elderly hip fracture

Abstract

The utility model relates to the technical field of rehabilitation chair, and disclose an old hip fracture rehabilitation chair, including H shape base frame, the top outer surface fixed connection of H shape base frame has hydraulic jack, the top output of hydraulic jack fixed connection has the sitting board, the front side of sitting board is provided with two adjusting plate, the outer surface rotationally connected with the damping pivot of rotating seat. Through pressing hydraulic jack improves the height of sitting board, thereby can adjust the height of the seat when the patient sits on the rehabilitation chair, and through the cooperation of the spring and the limiting sheet of the pull plate, the damping pivot is released from the limiting, so that the angle between the two adjusting plates and the sitting board can be adjusted individually, thereby the hip flexion angle can be adjusted, the rehabilitation effect is improved, the rehabilitation chair is suitable for height individual body position adjustment of different patients in the early stage after operation, has the clinical value of effectively promoting the early rehabilitation process under the concept of ERAS, improving the off-bed activity comfort, reducing the risk of complications of long-term lying.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation chair technology, specifically a rehabilitation chair for elderly people with hip fractures. Background Technology

[0002] With the accelerating aging of the global population, the incidence of hip fractures in the elderly is showing a significant upward trend. Hip fractures in the elderly mainly include femoral neck fractures, intertrochanteric fractures, and subtrochanteric fractures, often caused by osteoporosis in the elderly, which can be triggered by minor external forces such as falls during daily activities. These fractures not only cause immense physical pain but also severely impact patients' quality of life. Prolonged bed rest can easily lead to various complications such as pulmonary infections, deep vein thrombosis, and pressure sores, and even significantly increase mortality. For elderly patients with hip fractures, surgical treatment is an important means to restore their mobility and reduce complications. However, early and effective postoperative rehabilitation training is equally indispensable for promoting functional recovery and improving self-care abilities. Early postoperative ambulation follows a gradual process from sitting up in bed, sitting up at the bedside, sitting up out of bed, standing out of bed, to walking out of bed. Appropriate assistive devices are crucial in this process.

[0003] In traditional rehabilitation, patients often use ordinary chairs for rehabilitation training such as sitting up. In existing technology, the height of the chair is usually adjusted by using a combination of a socket and a pin. However, when adjusting the height of the chair in this way, the patient needs to move off the chair. The patient cannot operate the chair while sitting on it, which affects the height adjustment. In addition, the patient has difficulty adjusting the hip flexion angle, which increases the risk of wound pain and dislocation after joint replacement surgery. Therefore, a rehabilitation chair for elderly patients with hip fractures has been proposed. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a rehabilitation chair for elderly people with hip fractures to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rehabilitation chair for elderly patients with hip fractures, comprising an H-shaped base frame, a hydraulic jack fixedly connected to the top outer surface of the H-shaped base frame, a seat fixedly connected to the top output end of the hydraulic jack, two adjustment plates provided on the front side of the seat plate, a seat cushion provided on the top of both the seat plate and the adjustment plates, a back panel provided on the rear side of the seat plate, and the seat plate and the back panel connected by an angle adjustment mechanism, the adjustment mechanism comprising a rotating seat, two rotating seats respectively fixed to the rear side of the seat plate and the bottom of the two adjustment plates, a damping shaft rotatably connected to the outer surface of the rotating seat, a rotating block fixedly sleeved on the outer surface of the damping shaft, and two rotating blocks respectively fixedly connected to the back panel and the seat plate.

[0006] Furthermore, fixed cylinders are fixedly connected to the four corners of the top outer surface of the H-shaped base frame. Movable cylinders are movably inserted inside the fixed cylinders. Handrails are fixedly connected to the top outer surface of the movable cylinders. Multiple adjusting screw holes are linearly arrayed on the outer surfaces of the two front movable cylinders. Adjusting screws are threadedly connected to the outer surface of the fixed cylinders. The other end of the adjusting screw is threadedly connected to the inner thread of one of the adjusting screw holes.

[0007] Furthermore, the outer surface of the damping shaft is provided with multiple limiting grooves in a circumferential array. Support plates are fixedly connected to the rear outer surface of the seat plate and the bottom outer surface of the two adjusting plates. A limiting rod is movably inserted into the outer surface of the support plate. A pull plate is fixedly connected to the outer surface of the limiting rod. A spring is fixedly connected between the pull plate and the support plate. A limiting piece is fixedly connected to the other end of the limiting rod. The limiting piece is movably inserted into the interior of one of the limiting grooves.

[0008] Furthermore, a connecting plate is fixedly connected to the front outer surface of one of the armrests, and an adjusting shaft is rotatably passed through the outer surface of the connecting plate. A rotating plate is fixedly connected to the bottom outer surface of the adjusting shaft, and a table is fixedly connected to the other end of the rotating plate. A nut is threaded onto the outer surface of the adjusting shaft, and the nut is in movable contact with the connecting plate.

[0009] Furthermore, a support frame is fixedly connected to the front outer surface of the H-shaped base frame, a rotating frame is fixedly connected to the outer surfaces of the two support frames, a support shaft is rotatably connected to the outer surface of the rotating frame, a nut is threadedly connected to the outer surface of the support shaft, the nut fits against the outer surface of the rotating frame, the rotating frame is fixedly sleeved on the outer surface of the support shaft, and a foot plate is fixedly connected to the outer surface of the rotating frame.

[0010] Furthermore, there are eight limiting grooves arranged in a circular array, and there are twenty-four limiting grooves at the adjustment plate, also arranged in a circular array.

[0011] Furthermore, the back plate is provided with fixing straps on both sides, and one end of each fixing strap is fixedly connected with a buckle and a clip.

[0012] Furthermore, each of the four bottom corners of the H-shaped base frame is equipped with a universal wheel with a braking function.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This rehabilitation chair for elderly patients with hip fractures uses a hydraulic jack to raise the seat height, allowing adjustment of the seat height while the patient is seated. A pull plate, spring, and limiting plate work together to disengage the limiting plate from its groove, releasing the damping shaft and adjusting the angle between the seat and the adjustment plate. The angles between the two adjustment plates and the seat can be adjusted independently, allowing for adjustment of the hip flexion angle and improving rehabilitation outcomes. This rehabilitation chair is suitable for patients of varying heights in the early postoperative stage, enabling personalized height adjustments. It has clinical value in effectively promoting early rehabilitation under the ERAS (Enhanced Recovery After Surgery) concept, improving comfort during out-of-bed activities, and reducing the risk of complications from prolonged bed rest.

[0015] 2. This rehabilitation chair for elderly patients with hip fractures uses a pull plate, spring, and limiting plate to allow the limiting plate to disengage from the limiting groove, thereby releasing the damping shaft and adjusting the tilt angle of the backrest for easier use by the patient. When the backrest is rotated to a position parallel to the seat cushion, the patient can lie flat on the rehabilitation chair, making it easier to move the patient from the rehabilitation chair and the hospital bed. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of this utility model from below;

[0019] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 This utility model Figure 1 Enlarged structural diagram at point B;

[0021] Figure 6 This utility model Figure 1 Enlarged structural diagram at point C.

[0022] In the diagram: 1. H-shaped base frame; 2. Hydraulic jack; 3. Connecting plate; 4. Rotating plate; 5. Tabletop; 6. Adjusting plate; 7. Seat; 8. Rotating seat; 9. Rotating block; 10. Back plate; 11. Limiting groove; 12. Limiting rod; 13. Spring; 14. Pull plate; 15. Limiting piece; 16. Fixed cylinder; 17. Movable cylinder; 18. Adjusting screw; 19. Armrest; 20. Seat cushion; 21. Footrest; 22. Fixing strap. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to the following: Figures 1-6 This utility model provides a technical solution: a rehabilitation chair for elderly people with hip fractures, including an H-shaped base frame 1. A hydraulic jack 2 is fixedly connected to the top outer surface of the H-shaped base frame 1. A seat 7 is fixedly connected to the top output end of the hydraulic jack 2. Two adjustment plates 6 are provided on the front side of the seat 7. A seat cushion 20 is provided on the top of both the seat 7 and the adjustment plates 6. A backrest 10 is provided on the rear side of the seat 7. The seat 7 is connected to the two adjustment plates 6 and to the backrest 10 through an angle adjustment mechanism. The adjustment mechanism includes a rotating seat 8. Two rotating seats 8 are respectively fixed to the rear side of the seat 7 and the bottom of the two adjustment plates 6. A damping shaft is rotatably connected to the outer surface of the rotating seat 8. A damping shaft is fixedly sleeved on the outer surface of the damping shaft. There are two rotating blocks 9, which are fixedly connected to the back plate 10 and the seat plate 7 respectively. Specifically, when the height of the seat plate 7 needs to be adjusted, the hydraulic jack 2 is pressed to make the seat plate 7 rise. When the angle between the seat plate 7 and the two adjusting plates 6 needs to be adjusted, the pull plate 14 is pulled. The pull plate 14 drives the limiting rod 12 to move, so that one end of the limiting plate 15 is disengaged from the inside of the limiting groove 11, thereby releasing the limiting of the damping shaft, allowing the rotating blocks 9 on the seat plate 7 to rotate and adjust the tilt angle of the seat plate 7. This allows the seat plate 7 and the adjusting plates 6 to change within a certain angle range, and the angle between the two adjusting plates 6 and the seat plate 7 can be adjusted independently, thereby adjusting the hip flexion angle and improving the rehabilitation effect.

[0025] When it is necessary to adjust the tilt angle between the backrest 10 and the seat cushion 20, pull the pull plate 14. The pull plate 14 drives the limit rod 12 to move, so that one end of the limit piece 15 disengages from the inside of the limit groove 11, thereby releasing the limit on the damping shaft and allowing the rotating block 9 to rotate. Adjust the tilt angle of the backrest 10. The tilt angle of the backrest 10 can be adjusted between 45° and 90°. Then stop applying force to the pull plate 14 so that the spring 13 returns to its original position. The spring 13 drives the limit piece 15 to insert into the limit groove 11, limiting the damping shaft and thus limiting the backrest 10. When the backrest 10 is rotated to a position parallel to the seat cushion 20, the patient lies flat on the rehabilitation chair, making it easier to move the patient from the rehabilitation chair and the hospital bed.

[0026] In this embodiment, fixed cylinders 16 are fixedly connected to the four corners of the top outer surface of the H-shaped base frame 1. Movable cylinders 17 are movably inserted inside the fixed cylinders 16. Armrests 19 are fixedly connected to the top outer surface of the movable cylinders 17. Multiple adjusting screw holes are linearly arrayed on the outer surfaces of the two front movable cylinders 17. Adjusting screws 18 are threadedly connected to the outer surface of the fixed cylinders 16. The other end of the adjusting screw 18 is threadedly connected to the inner thread of one of the adjusting screw holes. Specifically, when the armrests 19 are fully retracted, they are at the same height as the seat cushion 20, so that the whole is in a flat state, which makes it easy to move the patient from the seat to the hospital bed. By unscrewing the adjusting screws 18, the adjusting screws 18 are disengaged from the adjusting screw holes, and the height of the armrests 19 is adjusted. After the adjustment is completed, the adjusting screws 18 are screwed into the adjusting screw holes to limit the height of the armrests 19.

[0027] In this embodiment, the outer surface of the damping shaft is provided with multiple limiting grooves 11 arranged in a circumferential array. Support plates are fixedly connected to the rear outer surface of the seat plate 7 and the bottom outer surface of the adjustment plate. A limiting rod 12 is movably inserted into the outer surface of the support plate. A pull plate 14 is fixedly connected to the outer surface of the limiting rod 12. A spring 13 is fixedly connected between the pull plate 14 and the support plate. A limiting piece 15 is fixedly connected to the other end of the limiting rod 12. The limiting piece 15 is movably inserted into one of the limiting grooves 11. Specifically, when it is necessary to adjust the seat cushion 2 of the backrest 10... When the tilt angle is between 0 and 0, pull the pull plate 14. The pull plate 14 drives the limit rod 12 to move, so that one end of the limit piece 15 disengages from the inside of the limit groove 11, thereby releasing the limit on the damping shaft and allowing the rotating block 9 to rotate. Adjust the tilt angle of the back plate 10. The tilt angle of the back plate 10 can be adjusted between 45° and 90°. Then stop applying force to the pull plate 14 so that the spring 13 returns to its original position. The spring 13 drives the limit piece 15 to insert into the limit groove 11, limiting the damping shaft, thereby limiting the back plate 10.

[0028] In this embodiment, a connecting plate 3 is fixedly connected to the front outer surface of one of the armrests 19. An adjusting shaft is rotatably passed through the outer surface of the connecting plate 3. A rotating plate 4 is fixedly connected to the bottom outer surface of the adjusting shaft. A table 5 is fixedly connected to the other end of the rotating plate 4. A nut is threaded on the outer surface of the adjusting shaft. The nut is in movable contact with the connecting plate 3. Specifically, by loosening the nut, the friction between the adjusting shaft and the connecting plate 3 is reduced, and force is applied to the table 5, so that the table 5 drives the rotating plate 4 to rotate the adjusting shaft, and the table 5 is rotated to the front of the seat for use.

[0029] In this embodiment, a support frame is fixedly connected to the front outer surface of the H-shaped base frame 1, and a rotating frame is fixedly connected to the outer surfaces of the two support frames. A support shaft is rotatably connected to the outer surface of the rotating frame, and a nut is threaded onto the outer surface of the support shaft. The nut fits against the outer surface of the rotating frame. The rotating frame is fixedly sleeved on the outer surface of the support shaft, and a footrest 21 is fixedly connected to the outer surface of the rotating frame. Specifically, the footrest 21 supports the patient's foot, and by loosening the nut, the rotating frame can drive the support shaft to rotate, thereby folding and storing the footrest 21.

[0030] In this embodiment, there are eight limiting grooves 11 arranged in a circular array. There are twenty-four limiting grooves 11 at the adjustment plate 6, also arranged in a circular array. Specifically, the eight limiting grooves 11 are arranged in a circular array on the damping shaft, such that two adjacent limiting grooves 11 are set at 45°, thereby allowing the back plate 10 to be adjusted at angles of 45° and 90°. The twenty-four limiting grooves are arranged in a circular array, with two adjacent limiting grooves 11 set at 15°, thereby allowing the angle between the seat plate 7 and the adjustment plate 6 to change within a certain range.

[0031] In this embodiment, the back panel 10 is provided with fixing straps 22 on both sides. One end of each fixing strap 22 is fixedly connected with a buckle and a locking head. Specifically, the fixing straps 22 have a certain elasticity. The patient is restrained by the fixing straps 22. The two fixing straps 22 are connected by the buckle and the locking head, thereby increasing the stability of the patient sitting on the rehabilitation chair.

[0032] It is worth noting that the fixing strap 22 is made of nylon, and the buckle and buckle head adopt the existing press-type buckle structure of the safety belt, such as the shoulder strap buckle structure of a backpack, which is divided into two parts: "male buckle" (plug) and "female buckle" (socket), and the connection and separation are achieved by plugging and unplugging. Male buckle: Features a flexible latch (usually plastic or metal with a raised buckle at the end) that connects to one end of the shoulder strap. Female buckle: Features a slot and unlocking button that connects to the other end of the shoulder strap or the main body of the bag. It has an internal groove that matches the male buckle's latch. When the male buckle is inserted into the female buckle, the flexible latch on the male buckle is deformed by the inner wall of the female buckle. After full insertion, the latch springs back and embeds into the slot of the female buckle, forming a mechanical engagement. At this point, the male buckle cannot be easily pulled out, achieving a stable connection of the shoulder strap. The female buckle has an unlocking button (usually symmetrical pressure plates on both sides). When the button is pressed, the button pushes the flexible latch of the male buckle through its internal structure, causing it to disengage from the slot of the female buckle and deform. At this point, the male buckle can be easily pulled out of the female buckle, achieving separation.

[0033] In this embodiment, omnidirectional wheels with braking function are installed at the four corners of the bottom of the H-shaped base frame 1. Specifically, the omnidirectional wheels facilitate the movement of the rehabilitation chair, and the stability of the rehabilitation chair is increased by locking the brakes after movement.

[0034] Working principle: When the height of the seat 7 needs to be adjusted, the hydraulic jack 2 is pressed to raise the seat 7. When the angle between the seat 7 and the adjusting plate 6 needs to be adjusted, the pull plate 14 is pulled. The pull plate 14 drives the limiting rod 12 to move, so that one end of the limiting plate 15 disengages from the inside of the limiting groove 11, thereby releasing the damping shaft from the limit and allowing the rotating block 9 on the seat 7 to rotate. The tilt angle of the seat 7 can be adjusted, so that the angle between the seat 7 and the adjusting plate 6 can change within a certain angle range. Moreover, the angle between the two adjusting plates 6 and the seat 7 can be adjusted independently, thereby adjusting the hip flexion angle and improving the rehabilitation effect.

[0035] When it is necessary to adjust the tilt angle between the backrest 10 and the seat cushion 20, pull the pull plate 14. The pull plate 14 drives the limit rod 12 to move, so that one end of the limit piece 15 disengages from the inside of the limit groove 11, thereby releasing the limit on the damping shaft and allowing the rotating block 9 to rotate. Adjust the tilt angle of the backrest 10. The tilt angle of the backrest 10 can be adjusted between 45° and 90°. Then stop applying force to the pull plate 14 so that the spring 13 returns to its original position. The spring 13 drives the limit piece 15 to insert into the limit groove 11, limiting the damping shaft and thus limiting the backrest 10. When the backrest 10 is rotated to a position parallel to the seat cushion 20, the patient lies flat on the rehabilitation chair, making it easier to move the patient from the rehabilitation chair and the hospital bed.

[0036] When the tabletop 5 is needed, force is applied to the tabletop 5 so that it is in a horizontal position, and the two positioning holes are aligned. The positioning pin is inserted into the two positioning holes to limit the tabletop 5, thus enabling its use. When not in use, the limitation between the tabletop 5 and the armrest 19 is released, and the tabletop 5 is lowered.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rehabilitation chair for elderly patients with hip fractures, comprising an H-shaped base frame (1), characterized in that: A hydraulic jack (2) is fixedly connected to the top outer surface of the H-shaped base frame (1). A seat plate (7) is fixedly connected to the top output end of the hydraulic jack (2). Two adjustment plates (6) are provided on the front side of the seat plate (7). A seat cushion (20) is provided on the top of both the seat plate (7) and the adjustment plates (6). A back plate (10) is provided on the rear side of the seat plate (7). The seat plate (7) is connected to the two adjustment plates (6) and to the back plate (10) through an angle adjustment mechanism. The adjustment mechanism includes a rotating seat (8). The two rotating seats (8) are fixedly fixed to the rear side of the seat plate (7) and the bottom of the two adjustment plates (6). A damping shaft is rotatably connected to the outer surface of the rotating seat (8). A rotating block (9) is fixedly sleeved on the outer surface of the damping shaft. The two rotating blocks (9) are fixedly connected to the back plate (10) and the seat plate (7) respectively.

2. The rehabilitation chair for elderly patients with hip fractures according to claim 1, characterized in that: The H-shaped base frame (1) has fixed cylinders (16) fixedly connected at the four corners of the top outer surface. Movable cylinders (17) are movably inserted inside the fixed cylinders (16). Handrails (19) are fixedly connected to the top outer surface of the movable cylinders (17). Multiple adjusting screw holes are opened in a linear array on the outer surfaces of the two front movable cylinders (17). Adjusting screws (18) are threadedly connected to the outer surface of the fixed cylinders (16). The other end of the adjusting screws (18) is threadedly connected to the inner thread of one of the adjusting screw holes.

3. The rehabilitation chair for elderly patients with hip fractures according to claim 1, characterized in that: The outer surface of the damping shaft is provided with multiple limiting grooves (11) arranged in a circular array. The outer surface of the rear side of the seat plate (7) and the bottom outer surface of the two adjusting plates (6) are fixedly connected to support plates. A limiting rod (12) is movably inserted into the outer surface of the support plate. A pull plate (14) is fixedly connected to the outer surface of the limiting rod (12). A spring (13) is fixedly connected between the pull plate (14) and the support plate. A limiting piece (15) is fixedly connected to the other end of the limiting rod (12). The limiting piece (15) is movably inserted into the interior of one of the limiting grooves (11).

4. A rehabilitation chair for elderly patients with hip fractures according to claim 2, characterized in that: One of the armrests (19) has a connecting plate (3) fixedly connected to its front outer surface. An adjusting shaft is rotatably passed through the outer surface of the connecting plate (3). A rotating plate (4) is fixedly connected to the bottom outer surface of the adjusting shaft. A table board (5) is fixedly connected to the other end of the rotating plate (4). A nut is threaded on the outer surface of the adjusting shaft. The nut is in movable contact with the connecting plate (3).

5. A rehabilitation chair for elderly patients with hip fractures according to claim 1, characterized in that: The front outer surface of the H-shaped base frame (1) is fixedly connected to a support frame, the outer surfaces of the two support frames are fixedly connected to a rotating frame, the outer surface of the rotating frame is rotatably connected to a support shaft, the outer surface of the support shaft is threaded with a nut, the nut is in contact with the outer surface of the rotating frame, the outer surface of the support shaft is fixedly fitted with a rotating frame, and the outer surface of the rotating frame is fixedly connected to a foot plate (21).

6. A rehabilitation chair for elderly patients with hip fractures according to claim 1, characterized in that: There are eight limiting grooves (11) at the back plate (10), and the eight limiting grooves (11) are arranged in a circular array. There are twenty-four limiting grooves (11) at the adjustment plate (6), and they are arranged in a circular array.

7. A rehabilitation chair for elderly patients with hip fractures according to claim 1, characterized in that: The back plate (10) has fixing straps (22) on both sides, and one end of each fixing strap (22) is fixedly connected to a buckle and a clip.

8. A rehabilitation chair for elderly patients with hip fractures according to claim 1, characterized in that: The H-shaped base frame (1) is equipped with universal wheels with braking function at the four corners of its bottom.

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