Portable folding chair for patient after artificial hip replacement
By designing the chest frame, leg clamp, and footrest structure of the portable folding chair, the problem of improper posture during patient rehabilitation was solved, achieving correct posture restraint and convenient use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-14
AI Technical Summary
Patients undergoing total hip replacement surgery often struggle to maintain proper posture during rehabilitation. Using a regular chair can easily lead to improper movements such as hip flexion, adduction, and internal rotation, which can negatively impact rehabilitation outcomes.
A portable folding chair was designed, comprising a seat, a backrest, and a seat cushion. The angle between the backrest and the seat cushion is greater than 90°. A chest brace, leg brace, and foot brace are provided to restrain the patient's upper body, legs, and feet, maintaining a correct posture.
It effectively restrains the position of the patient's upper body, legs, and feet, ensuring correct posture during rehabilitation, improving ease of use, adapting to the needs of different patients, and facilitating movement and storage.
Smart Images

Figure CN224112919U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically a portable folding chair for patients after artificial hip joint replacement surgery. Background Technology
[0002] After total hip replacement surgery, patients need to avoid hip flexion exceeding 90°, adduction of the lower limbs beyond the body midline, and internal or external rotation beyond the midline in any position. During rehabilitation, when lying supine, the affected limb should be slightly abducted, and a clamp should be placed between the legs to restrict movement and prevent external rotation of the hip joint.
[0003] During the patient's rehabilitation process, using a regular chair makes it difficult for the patient to maintain a stable posture without leaning forward excessively. Similarly, the unrestrained leg position is also prone to incorrect posture, which can actually hinder rehabilitation.
[0004] Therefore, we propose a portable folding chair for patients after total hip replacement surgery to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a portable folding chair for patients after total hip replacement surgery, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a portable folding chair for patients after total hip replacement surgery, including a seat, a backrest board and a seat cushion board provided on the seat, the included angle between the backrest board and the seat cushion board being greater than 90°, and a chest frame for restraining the patient's upper body connected to the backrest board, the chest frame having an arc-shaped structure and an elastic opening in the middle.
[0007] The seat cushion is equipped with a foldable leg clip, which is trapezoidal in shape and located in the middle of the seat cushion. At the bottom front of the seat, there is a footrest for restraining the patient's feet, with two elastic bands fixedly connected to the footrest.
[0008] As an optional solution for the portable folding chair for patients after artificial hip replacement surgery according to the present invention, the chest frame is configured as an elastic plastic frame with a clamping groove on the inner side.
[0009] As an optional solution for the portable folding chair for patients after artificial hip replacement surgery according to the present invention, the leg clip is made of sponge pad, and the width of the upper end face is smaller than the width of the lower end face.
[0010] As an optional solution for the portable folding chair for patients after artificial hip joint replacement surgery according to the present invention, wherein: the bottom of the seat cushion is fixedly connected to a slide cylinder, and the end of the slide cylinder facing outward is slidably connected to a telescopic plate, the telescopic plate is a strip plate, horizontally arranged, and is rotatably connected to the bottom of the leg clamp at the front end through a resistance bearing.
[0011] As an optional solution for the portable folding chair for patients after artificial hip replacement surgery according to the present invention, the leg frame is configured as a horizontal plate structure, with a partition fixedly connected in the middle, the partition dividing the two sides, and an elastic band fixedly connected to each side.
[0012] As an optional solution for the portable folding chair for patients after artificial hip joint replacement surgery according to the present invention, a horizontal plate is fixedly connected to the bottom of the front of the seat, and a vertically arranged side plate is fixedly connected to the horizontal plate. The side plate is located at the bottom of the seat cushion, and the footrest is raised and lowered by sliding structure on the side plate.
[0013] As an optional solution for the portable folding chair for patients after artificial hip replacement surgery according to the present invention, the sliding structure includes sliding grooves opened on both sides of the side plate, the sliding grooves are arranged vertically, a sliding plate is slidably connected in the sliding groove, one end of the sliding plate is fixedly connected to the foot frame, and the other end of the sliding plate is fixedly connected to the limiting plate, the width of the limiting plate is greater than the width of the sliding groove; a sliding mechanism is provided between the horizontal plate and the foot frame.
[0014] As an optional solution for the portable folding chair for patients after artificial hip joint replacement surgery according to the present invention, the bottom of the chair seat is equipped with casters at four ends, and the casters are omnidirectional brake wheels.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This portable folding chair is used by patients after total hip replacement surgery. From top to bottom, it sequentially restricts the position of the patient's upper body, legs, and feet through the angle structure of the seat, the chest frame at the backrest for upper body restraint, the leg clips on the seat for limiting the spread of the legs, and the footrests for lower limb restraint. This helps maintain the correct posture of the patient and facilitates recovery. At the same time, the leg clips can be folded and stored for easy use by others or by the patient after recovery, improving ease of use. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0018] Figure 2 This is a side view of the connection relationship at the leg clamp of this utility model.
[0019] Figure 3 This is a partial cross-sectional structural diagram of the connection relationship at the leg of this utility model.
[0020] In the diagram: 1. Seat; 2. Backrest; 3. Seat cushion; 4. Chest frame; 401. Clamping groove; 5. Leg clamp; 6. Telescopic board; 7. Slide cylinder; 8. Leg frame; 9. Divider; 10. Elastic band; 11. Side panel; 12. Casters; 13. Horizontal board; 14. Slide groove; 15. Slide board; 16. Limiting plate. Detailed Implementation
[0021] 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.
[0022] Please see Figures 1-3 This utility model provides a technical solution: a portable folding chair for patients after artificial hip joint replacement surgery, including a seat 1, a backrest 2 and a seat cushion 3 on the seat 1, the included angle between the backrest 2 and the seat cushion 3 is greater than 90°, and a chest frame 4 for restraining the patient's upper body is connected to the backrest 2, the chest frame 4 has an arc-shaped structure and an elastic opening in the middle.
[0023] The seat cushion 3 is equipped with a foldable leg clip 5, which is trapezoidal in shape and located in the middle of the seat cushion 3; the bottom in front of the seat 1 is equipped with a footrest 8 for restraining the patient's feet, and two elastic bands 10 are fixedly connected to the footrest 8.
[0024] That is, the patient's upper body, legs, and feet are restrained in sequence to maintain the patient's correct posture in order to facilitate rehabilitation.
[0025] To facilitate easy restraint of the patient's upper body:
[0026] In this embodiment, the chest frame 4 is set as an elastic plastic frame with a clamping groove 401 formed on the inner side. After the chest frame 4 is opened by force, the patient's upper body is inserted into the clamping groove 401, so that the patient's upper body is pressed against the backrest 2, which avoids the patient's upper body from accidentally leaning forward, causing the angle between the upper body and the lower limbs to be less than 90°, which would affect the rehabilitation of the hip joint.
[0027] To facilitate convenient restraint of the patient's legs:
[0028] In this embodiment, the leg clip 5 is a sponge pad, and the width of the upper end face is smaller than the width of the lower end face. During use, the patient sits in a chair with their legs spread apart by the leg clip 5, limiting the legs to maintain a certain posture and avoiding incorrect postures such as crossing their legs, thus facilitating rehabilitation.
[0029] To facilitate the folding and storage of the leg clip 5 and allow for flexible use according to the patient's needs at different stages, a sliding cylinder 7 is fixedly connected to the bottom of the seat cushion 3. The end of the sliding cylinder 7 facing outwards is slidably connected to a telescopic plate 6. The telescopic plate 6 is a horizontally arranged strip plate, and its front end is rotatably connected to the bottom of the leg clip 5 via a resistance bearing, allowing the leg clip 5 to rotate to either an upright or horizontal position. In the upright position, it is used to separate the patient's legs; in the horizontal position, the leg clip 5 is pre-positioned under the seat cushion 3 and can be folded inwards along with the telescopic plate 6 until it is hidden and folded at the bottom of the seat cushion 3. At this point, the chair is also convenient for other people to use normally, or for the patient to use normally after recovery.
[0030] To facilitate convenient foot restraint for patients:
[0031] In this embodiment, the stand 8 is configured as a horizontal plate structure, with a partition 9 fixedly connected in the middle. The partition 9 divides the two sides, and a rubber band 10 is fixedly connected to each side.
[0032] That is, the patient's feet can be placed separately within the elastic band 10 for positional restraint, which helps the patient's legs maintain a certain lower limb posture and avoids the rehabilitation process being affected by incorrect posture.
[0033] Furthermore, in order to accommodate the foot placement of different patients, a horizontal plate 13 is fixedly connected to the bottom front of the seat 1, and a vertically arranged side plate 11 is fixedly connected to the horizontal plate 13. The side plate 11 is located at the bottom of the seat cushion 3, and the footrest 8 is moved up and down on the side plate 11 by a sliding structure.
[0034] The sliding structure includes sliding grooves 14 opened on both sides of the side plate 11. The sliding grooves 14 are arranged vertically, and a sliding plate 15 is slidably connected in the sliding grooves 14. One end of the sliding plate 15 is fixedly connected to the foot bracket 8, and the other end of the sliding plate 15 is fixedly connected to the limiting plate 16. The limiting plate 16 is a strip plate, and the width of the limiting plate 16 is greater than the width of the sliding groove 14.
[0035] A sliding mechanism is set between the horizontal plate 13 and the foot bracket 8. This sliding mechanism can be an electric push rod, or a threaded rod or threaded sleeve that works with the slide groove 14 and the slide plate 15 to perform threaded transmission lifting. These are all common lifting methods. Here, the existing conventional lifting method is adopted, and it will not be described in detail.
[0036] That is, the height of the footrest 8 is adjustable so that patients with different leg lengths can place their feet on the footrest 8 after sitting down, thus improving practicality.
[0037] In this embodiment, casters 12 are installed at the four ends of the bottom of the seat 1. The casters 12 are omnidirectional brake wheels, which allows the seat to be pushed by others, making it convenient for the patient to move and use.
[0038] 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 portable folding chair for patients after total hip arthroplasty, comprising a seat (1), a backrest (2) and a seat cushion (3) disposed on the seat (1), characterized in that: The included angle between the backrest (2) and the seat cushion (3) is greater than 90°. A chest frame (4) for restraining the patient's upper body is connected to the backrest (2). The chest frame (4) has an arc-shaped structure and an elastic opening in the middle. The seat cushion (3) is equipped with a foldable leg clip (5), which is trapezoidal in shape and located in the middle of the seat cushion (3); the bottom of the seat (1) is equipped with a footrest (8) for restraining the patient's feet, and two elastic bands (10) are fixedly connected to the footrest (8).
2. The portable folding chair for patients after total hip arthroplasty according to claim 1, characterized in that: The chest frame (4) is configured as an elastic plastic frame with a clamping groove (401) formed on the inner side.
3. A portable folding chair for patients after total hip arthroplasty according to claim 1, characterized in that: The leg clip (5) is made of sponge pad, and the width of the upper end face is smaller than the width of the lower end face.
4. A portable folding chair for patients after total hip arthroplasty according to claim 1, characterized in that: The bottom of the seat cushion (3) is fixedly connected to a slide cylinder (7), and the end of the slide cylinder (7) facing the outside is slidably connected to a telescopic plate (6). The telescopic plate (6) is a strip plate, arranged horizontally, and is rotatably connected to the bottom of the leg clamp (5) at the front end through a resistance bearing.
5. A portable folding chair for patients after total hip arthroplasty according to claim 1, characterized in that: The tripod (8) is configured as a horizontal plate structure with a partition (9) fixedly connected in the middle. The partition (9) divides the two sides, and a rubber band (10) is fixedly connected to each side.
6. A portable folding chair for patients after total hip arthroplasty according to claim 1, characterized in that: A horizontal plate (13) is fixedly connected to the bottom front of the seat (1), and a vertically arranged side plate (11) is fixedly connected to the horizontal plate (13). The side plate (11) is located at the bottom of the seat cushion (3), and the leg frame (8) is raised and lowered by sliding structure on the side plate (11).
7. A portable folding chair for patients after total hip arthroplasty according to claim 6, characterized in that: The sliding structure includes sliding grooves (14) opened on both sides of the side plate (11), the sliding grooves (14) are arranged vertically, and a sliding plate (15) is slidably connected in the sliding grooves (14). One end of the sliding plate (15) is fixedly connected to the foot (8), and the other end of the sliding plate (15) is fixedly connected to the limiting plate (16). The width of the limiting plate (16) is greater than the width of the sliding groove (14); a sliding mechanism is provided between the horizontal plate (13) and the foot (8).
8. A portable folding chair for patients after total hip arthroplasty according to claim 1, characterized in that: The bottom of the chair seat (1) is equipped with casters (12) at the four ends respectively, and the casters (12) are universal brake wheels.