Good limb positioning adjusting device
By designing an adjustable limb positioning device, the problem of unadjustable pillows was solved, achieving stability and comfort in the patient's position and improving rehabilitation outcomes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD AFFILIATED HOSPITAL OF GUANGZHOU MEDICAL UNIVERSITY (GUANGZHOU SEVERE MATERNAL TREATMENT CENTER GUANGZHOU ROUJI HOSPITAL)
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-17
AI Technical Summary
In existing technologies, pillows cannot be adjusted in height and angle, resulting in unstable limb positioning for patients and affecting rehabilitation outcomes.
A limb positioning adjustment device is designed, including a backrest cushion, an upper limb positioning cushion, and a lower limb positioning cushion. The cushions can be adjusted in multiple directions through an air pressure regulating rod and a pull-wire switch to ensure the stability and comfort of the patient's position.
The cushions are adjustable in multiple directions, which improves patient comfort and rehabilitation outcomes, reduces the incidence of pressure ulcers, and lowers the workload of medical staff.
Smart Images

Figure CN224126208U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rehabilitation equipment technology, specifically to a limb positioning adjustment device. Background Technology
[0002] This section provides only background information related to this application to enable those skilled in the art to understand this application more thoroughly and accurately, and it is not necessarily prior art.
[0003] Currently, cerebrovascular disease is the leading cause of death in China, and most patients experience hemiplegia. For hemiplegia caused by cerebrovascular disease, early positioning is crucial in rehabilitation care. A good positioning, also known as a "good posture," refers to a well-designed position to prevent or counteract spastic patterns, protect the shoulder joint, and induce early separation movements. Its functions include preventing joint contractures and deformities, preventing shoulder subluxation and foot drop, and reducing spasticity. The unaffected lateral decubitus position is a highly recommended good positioning. The specific procedure is as follows: assist the patient to assume a lateral decubitus position with the unaffected side down and the affected side up. The affected upper limb is extended forward with the palm facing down and the fingers straight, while the affected lower limb is slightly bent.
[0004] Currently, pillows are generally used in clinical practice to fix the patient's position. However, since the height or tilt angle of the pillow is not adjustable, different sizes of pillows are often needed for patients of different body types and heights. Sometimes, pillows need to be stacked, which brings great inconvenience to medical staff. In addition, since the pillow is placed on the hospital bed, it is easy for it to move during the support process, making the patient's limb position unstable and easily affecting the patient's recovery. Utility Model Content
[0005] In order to overcome the defects of the prior art, the present invention provides a limb positioning adjustment device, which can solve the problems mentioned in the background art, such as the inability to adjust the height and angle of the soft pad and the instability of its position.
[0006] The technical solution adopted by this utility model to solve its problem is:
[0007] A limb positioning adjustment device, comprising:
[0008] The bed is equipped with a backrest cushion for supporting the patient's back, an upper limb positioning cushion for supporting the patient's upper limbs, and a lower limb positioning cushion for supporting the patient's lower limbs.
[0009] The first adjustment component includes at least a first air pressure adjustment rod, one end of which is rotatably connected to the bed body, and the other end of which is connected to one side of the backrest cushion and used to drive the backrest cushion to swing in the left and right direction to adjust its tilt angle.
[0010] The second adjustment component is disposed between the upper limb positioning cushion and the bed frame and is used to drive the upper limb positioning cushion to move in the front-back direction.
[0011] The third adjustment component includes at least two second air pressure adjustment rods disposed on the front and rear sides. One end of one second air pressure adjustment rod is rotatably connected to the bed body, and the other end is connected to the front side of the lower limb positioning cushion. One end of the other second air pressure adjustment rod is rotatably connected to the bed body, and the other end is connected to the rear side of the lower limb positioning cushion. The two second air pressure adjustment rods are used to drive the lower limb positioning cushion to move in the up-down direction and to tilt in the front-back direction.
[0012] Furthermore, one end of the second air pressure regulating rod is rotatably connected to the bed body via a first ball head, and the other end is rotatably connected to the lower limb positioning cushion via a second ball head.
[0013] Furthermore, the third adjustment component includes four second air pressure adjustment rods, which are arranged in pairs on the front and rear sides; wherein, the two second air pressure adjustment rods on the front side are arranged at intervals in the left-right direction, and the two second air pressure adjustment rods on the rear side are arranged at intervals in the left-right direction.
[0014] Furthermore, it also includes two pull-cord switches located on the front and rear sides respectively. One pull-cord switch is used to simultaneously control the unlocking of the two second air pressure regulating rods located on the front side, and the other pull-cord switch is used to simultaneously control the unlocking of the two second air pressure regulating rods located on the rear side.
[0015] Furthermore, the pull-cord switch includes a first mounting base, a first pressing handle disposed on the first mounting base, and two pull cords. One end of each of the two pull cords is connected to the first pressing handle, and the other end of each of the two pull cords is connected to two second air pressure regulating rods respectively.
[0016] Furthermore, the first adjustment assembly includes two first air pressure adjustment rods, which are arranged at intervals along the front-back direction; one end of the first air pressure adjustment rod is hinged to the bed body, and the other end is fixedly connected to one side of the backrest cushion.
[0017] Furthermore, the first air pressure regulating rod is provided with a switch assembly, the switch assembly including a second mounting base and a second pressing handle disposed on the second mounting base, the second pressing handle being connected to the first air pressure regulating rod.
[0018] Furthermore, both the first and second air pressure adjusting rods are gas springs.
[0019] Furthermore, the second adjustment assembly includes a sliding plate mounted on the upper limb positioning cushion and a fixed seat mounted on the bed frame. The fixed seat has a groove for the sliding plate to slide in or out in the front-back direction, wherein:
[0020] The fixed base has a plurality of locking holes connected to the slide groove in a front-to-back direction, and the sliding plate has locking blocks for engaging with the locking holes to achieve positioning.
[0021] There is a gap between the sliding plate and the sliding groove in the left-right direction, and the sliding plate can slide in the left-right direction to make the locking block engage with the locking hole.
[0022] Furthermore, the bottom of the upper limb positioning pad is provided with an installation groove, and the slide plate is installed in the installation groove.
[0023] In summary, the limb positioning adjustment device provided by this utility model has the following beneficial effects:
[0024] (1) By setting the first adjustment component, the inclination of the backrest cushion can be adjusted freely according to the patient's body shape, avoiding bedsores caused by prolonged exposure to the same backrest angle, and greatly improving the patient's comfort. By setting the second adjustment component, the front and back positions of the upper limb positioning cushion can be adjusted according to the patient's height and body shape, making it more applicable. By setting the third adjustment component, the height and inclination of the lower limb positioning cushion can be adjusted freely, greatly increasing the applicability to the patient, greatly reducing the probability of bedsores on the legs, greatly improving the patient's comfort, and effectively reducing the workload of medical staff and improving work efficiency. In addition, by setting the first, second and third adjustment components, it is possible to ensure that the backrest cushion, upper limb positioning cushion and lower limb positioning cushion are fixed relative to the bed, preventing their positions from changing.
[0025] (2) By setting a first ball head and a second ball head at both ends of the second air pressure regulating rod, the first ball head is rotatably connected to the bed body and the second ball head is rotatably connected to the lower limb positioning cushion, thereby realizing universal rotation, making the adjustment angle range of the lower limb positioning cushion wider, increasing the space for patients to adjust their posture, and making it more widely applicable. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the limb positioning adjustment device of this utility model;
[0027] Figure 2 This is a side view of the limb positioning adjustment device of this utility model;
[0028] Figure 3 This is another side view of the limb positioning adjustment device of this utility model;
[0029] Figure 4 This is a partial structural diagram of the lower limb positioning pad and the third adjustment component in the limb positioning adjustment device of this utility model;
[0030] Figure 5 This is an exploded schematic diagram of the limb positioning adjustment device of this utility model.
[0031] The meanings of the reference numerals in the attached figures are as follows:
[0032] 1. Bed frame; 11. Backrest cushion; 12. Upper limb positioning cushion; 121. Mounting slot; 13. Lower limb positioning cushion; 2. First adjustment component; 21. First gas pressure adjustment rod; 22. Switch component; 221. Second mounting base; 222. Second pressing handle; 3. Second adjustment component; 31. Slide plate; 311. Locking block; 32. Fixing base; 321. Slide groove; 322. Locking hole; 4. Third adjustment component; 41. Second gas pressure adjustment rod; 411. First ball head; 412. Second ball head; 42. Pull-cord switch; 421. First mounting base; 422. First pressing handle; 423. Pull cord. Detailed Implementation
[0033] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.
[0034] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0036] See Figure 1-5This utility model provides a limb positioning adjustment device, including a bed 1, on which a backrest cushion 11 for supporting the patient's back, an upper limb positioning cushion 12 for supporting the patient's upper limb, and a lower limb positioning cushion 13 for supporting the patient's lower limb; wherein, a first adjustment component 2 is provided between the bed 1 and the backrest cushion 11, the first adjustment component 2 being used to drive the backrest cushion 11 to swing in the left and right direction to adjust its tilt angle; a second adjustment component 3 is provided between the bed 1 and the upper limb positioning cushion 12, the second adjustment component 3 being used to drive the upper limb positioning cushion 12 to move in the front and back direction; a third adjustment component 4 is provided between the bed 1 and the lower limb positioning cushion 13, the third adjustment component 4 being used to drive the lower limb positioning cushion 13 to move in the up and down direction and to tilt in the front and back direction.
[0037] For details, please refer to Figure 2 The first adjustment assembly 2 includes two first gas pressure adjustment rods 21, which are arranged at intervals along the front-to-back direction. One end of each first gas pressure adjustment rod 21 is hinged to the bed frame 1, and the other end is fixedly connected to one side of the backrest cushion 11. Each first gas pressure adjustment rod 21 is also equipped with a switch assembly 22, which includes a second mounting base 221 and a second pressing handle 222 mounted on the second mounting base 221. The second pressing handle 222 is connected to the first gas pressure adjustment rod 21.
[0038] Therefore, when it is necessary to adjust the tilt angle of the backrest cushion 11, the user can press the second pressing handle 222 to unlock the first gas pressure adjusting rod 21 and simultaneously press the backrest cushion 11 to cause it to swing until the backrest cushion 11 swings to a suitable angle. Then, releasing the second pressing handle 222 will lock the first gas pressure adjusting rod 21, thereby fixing the angle of the backrest cushion 11. The operation is very convenient. Preferably, the swing angle of the backrest cushion 11 is 5° to 60°.
[0039] Therefore, by setting the first adjustment component 2, the tilt of the backrest cushion 11 can be adjusted at will according to the patient's body shape, avoiding bedsores caused by prolonged exposure to the same backrest angle, and greatly improving the patient's comfort.
[0040] In this embodiment, the first air pressure regulating rod 21 is a gas spring, which can be purchased on the market. Its structure and working principle are existing technologies, so they will not be described in detail here.
[0041] See Figure 3-4The third adjustment assembly 4 includes four second air pressure adjustment rods 41, arranged in pairs on the front and rear sides. The two front air pressure adjustment rods 41 are spaced apart in the left-right direction, with one end rotatably connected to the bed frame 1 and the other end connected to the front side of the lower limb positioning cushion 13. The two rear air pressure adjustment rods 41 are also spaced apart in the left-right direction, with one end rotatably connected to the bed frame 1 and the other end connected to the rear side of the lower limb positioning cushion 13. Additionally, it includes two pull-cord switches 42 located on the front and rear sides. One pull-cord switch 42 simultaneously controls the unlocking of the two front air pressure adjustment rods 41, and the other pull-cord switch simultaneously controls the unlocking of the two rear air pressure adjustment rods 41. Specifically, the pull switch 42 includes a first mounting base 421, a first pressing handle 422 disposed on the first mounting base 421, and two pull wires 423. One end of each pull wire 423 is connected to the first pressing handle 422, and the other end of each pull wire 423 is connected to two second air pressure regulating rods 41 respectively.
[0042] Therefore, when it is necessary to adjust the height of the lower limb positioning pad 13, the user can press the first pressing handle 422 of the two pull-wire switches 42 simultaneously with both hands, thereby unlocking the four sets of second air pressure adjustment rods 41 and pressing the lower limb positioning pad 13 in a synchronized manner to adjust the height of the lower limb positioning pad 13. After the lower limb positioning pad 13 rises or falls to a suitable angle, the user can release the first pressing handle 422 to lock the second air pressure adjustment rods 41, thereby fixing the height of the lower limb positioning pad 13. The operation is very convenient. When the lower limb positioning pad 13 needs to be tilted forward or backward, the user only needs to press the first pressing handle 422 on one side and simultaneously press the lower limb positioning pad 13. If the front side of the lower limb positioning pad 13 needs to be adjusted to tilt downward, the user only needs to press the first pressing handle 422 on the front side and simultaneously press the lower limb positioning pad 13. Similarly, if the rear side of the lower limb positioning pad 13 needs to be adjusted to tilt downward, the user only needs to press the first pressing handle 422 on the rear side and simultaneously press the lower limb positioning pad 13. It is very convenient.
[0043] Therefore, by setting the third adjustment component 4, the height and inclination of the lower limb positioning pad 13 can be adjusted at will, which greatly increases the applicability to patients, greatly reduces the probability of leg bedsores, greatly improves patient comfort, and at the same time effectively reduces the workload of medical staff and improves work efficiency.
[0044] In this embodiment, the second air pressure regulating rod 41 is also a gas spring, which can be purchased on the market. Its structure and working principle are existing technologies, so they will not be described in detail here.
[0045] In order to further improve the adjustment range of the tilt angle and direction of the lower limb positioning cushion 13, the two ends of the second air pressure regulating rod 41 are respectively provided with a first ball head 411 and a second ball head 412. The first ball head 411 is rotatably connected to the bed body 1, and the second ball head 412 is rotatably connected to the lower limb positioning cushion 13.
[0046] Therefore, the ball joint allows for omnidirectional rotation, which in turn enables a wider range of adjustment angles for the lower limb positioning pad 13, increases the space for patients to adjust their posture, and broadens its applicability.
[0047] See also Figure 5 The second adjustment component 3 includes a slide plate 31 mounted on the upper limb positioning cushion 12 and a fixed seat 32 mounted on the bed frame 1. The fixed seat 32 has a groove 321 on which the slide plate 31 can slide in or out in the front-back direction. The fixed seat 32 has a plurality of locking holes 322 connected to the groove 321 in the front-back direction. The slide plate 31 has a locking block 311 for engaging with the locking hole 322 to achieve positioning. In addition, there is a gap between the slide plate 31 and the groove 321 in the left-right direction. The slide plate 31 can slide in the left-right direction to engage the locking block 311 with the locking hole 322. The bottom of the upper limb positioning cushion 12 also has a mounting groove 121, and the slide plate 31 is installed in the mounting groove 121.
[0048] Therefore, when it is necessary to adjust the front and back position of the upper limb positioning pad 12, the user can grasp the upper limb positioning pad 12 and slide the slide plate 31 to the right to disengage the locking block 311 from the locking hole 322. Then, the user can move the upper limb positioning pad 12 back and forth until it is adjusted to the appropriate position. Then, the user can slide the slide plate 31 to the left to make the locking block 311 engage with another locking hole 322, thus completing the adjustment. The operation direction is convenient.
[0049] Therefore, by setting the second adjustment component 3, the front and back positions of the upper limb positioning pad 12 can be adjusted according to the patient's height and body shape, making it more applicable.
[0050] In addition, by setting the first adjustment component 2, the second adjustment component 3 and the third adjustment component 4, it is possible to ensure that the backrest cushion 11, the upper limb positioning cushion 12 and the lower limb positioning cushion 13 are fixed relative to the bed frame 1, and to prevent their positions from changing.
[0051] Among them, the backrest cushion 11, the upper limb positioning cushion 12, and the lower limb positioning cushion 13 are all composed of stainless steel plates and medical care cushions.
[0052] In summary, the limb positioning adjustment device provided by this utility model has the following beneficial effects:
[0053] (i) By setting the first adjustment component 2, the tilt of the backrest cushion 11 can be adjusted freely according to the patient's body shape, avoiding bedsores caused by prolonged exposure to the same backrest angle, and greatly improving the patient's comfort. By setting the second adjustment component 3, the fore-and-aft position of the upper limb positioning cushion 12 can be adjusted according to the patient's height and body shape, making it more adaptable. By setting the third adjustment component 4, the height and tilt of the lower limb positioning cushion 13 can be adjusted freely, greatly increasing the applicability to the patient, greatly reducing the probability of leg bedsores, greatly improving the patient's comfort, and effectively reducing the workload of medical staff and improving work efficiency. In addition, by setting the first adjustment component 2, the second adjustment component 3, and the third adjustment component 4, the backrest cushion 11, the upper limb positioning cushion 12, and the lower limb positioning cushion 13 can be kept fixed relative to the bed frame 1, preventing their positions from changing.
[0054] (ii) By setting a first ball head 411 and a second ball head 412 at both ends of the second air pressure regulating rod 41, the first ball head 411 is rotatably connected to the bed body 1 and the second ball head 412 is rotatably connected to the lower limb positioning cushion 13, thereby realizing universal rotation, making the adjustment angle range of the lower limb positioning cushion 13 wider, increasing the space for patients to adjust their posture, and making it more widely applicable.
[0055] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.
[0056] It should be understood that the terms "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0057] Furthermore, in the description of this utility model, "multiple" and "several" mean two or more, unless otherwise explicitly specified.
[0058] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.
Claims
1. A good limb position adjusting device, characterized by, include: The bed is equipped with a backrest cushion for supporting the patient's back, an upper limb positioning cushion for supporting the patient's upper limbs, and a lower limb positioning cushion for supporting the patient's lower limbs. The first adjustment component includes at least a first air pressure adjustment rod, one end of which is rotatably connected to the bed body, and the other end of which is connected to one side of the backrest cushion and used to drive the backrest cushion to swing in the left and right direction to adjust its tilt angle. The second adjustment component is disposed between the upper limb positioning cushion and the bed frame and is used to drive the upper limb positioning cushion to move in the front-back direction. The third adjustment component includes at least two second air pressure adjustment rods disposed on the front and rear sides. One end of one second air pressure adjustment rod is rotatably connected to the bed body, and the other end is connected to the front side of the lower limb positioning cushion. One end of the other second air pressure adjustment rod is rotatably connected to the bed body, and the other end is connected to the rear side of the lower limb positioning cushion. The two second air pressure adjustment rods are used to drive the lower limb positioning cushion to move in the up-down direction and to tilt in the front-back direction.
2. The limb positioning adjustment device according to claim 1, characterized in that, One end of the second air pressure regulating rod is rotatably connected to the bed body via a first ball head, and the other end is rotatably connected to the lower limb positioning cushion via a second ball head.
3. The good limb positioning adjustment device of claim 1, wherein, The third adjustment component includes four second air pressure adjustment rods, which are arranged in pairs on the front and rear sides; wherein, the two second air pressure adjustment rods on the front side are arranged at intervals in the left-right direction, and the two second air pressure adjustment rods on the rear side are arranged at intervals in the left-right direction.
4. The good limb positioning adjustment device of claim 3, wherein, It also includes two pull-cord switches located on the front and rear sides respectively. One pull-cord switch is used to simultaneously control the unlocking of the two second air pressure regulating rods located on the front side, and the other pull-cord switch is used to simultaneously control the unlocking of the two second air pressure regulating rods located on the rear side.
5. The good limb positioning adjustment device of claim 4, wherein, The pull-cord switch includes a first mounting base, a first pressing handle disposed on the first mounting base, and two pull cords. One end of each pull cord is connected to the first pressing handle, and the other end of each pull cord is connected to two second air pressure regulating rods.
6. The good limb positioning adjustment device according to any one of claims 1-5, characterized in that, The first adjustment component includes two first air pressure adjustment rods, which are arranged at intervals along the front-back direction; one end of the first air pressure adjustment rod is hinged to the bed body, and the other end is fixedly connected to one side of the backrest cushion.
7. The good limb positioning adjustment device according to any one of claims 1-5, characterized in that, The first air pressure regulating rod is provided with a switch assembly, which includes a second mounting base and a second pressing handle disposed on the second mounting base. The second pressing handle is connected to the first air pressure regulating rod.
8. The good limb positioning adjustment device according to any one of claims 1-5, characterized in that, Both the first and second air pressure regulating rods are air springs.
9. The good limb positioning adjustment device according to any one of claims 1-5, characterized in that, The second adjustment assembly includes a sliding plate mounted on the upper limb positioning cushion and a fixed seat mounted on the bed frame. The fixed seat has a groove for the sliding plate to slide in or out in the front-back direction, wherein: The fixed base has a plurality of locking holes connected to the slide groove in a front-to-back direction, and the sliding plate has locking blocks for engaging with the locking holes to achieve positioning. There is a gap between the sliding plate and the sliding groove in the left-right direction, and the sliding plate can slide in the left-right direction to make the locking block engage with the locking hole.
10. The good limb positioning adjustment device of claim 9, wherein, The bottom of the upper limb positioning soft pad is also provided with a mounting groove, and the sliding plate is mounted in the mounting groove.