Patient knee joint body position supporting device capable of being fixed to bed body

By designing a knee joint positioning support device that can be fixed to the bed, the problems of unstable leg support and low comfort for patients after knee replacement surgery have been solved, achieving stable and comfortable leg support and promoting the patient's rehabilitation.

CN224070733UActive Publication Date: 2026-04-03YINCHUAN GUOLONG ORTHOPEDIC HOSPITAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The lack of existing technology for leg support devices specifically designed for patients after knee replacement surgery results in unstable support and low comfort, which affects the patient's postoperative rehabilitation.

Method used

A patient knee joint positioning support device that can be fixed to the bed is designed, including components such as slide rails, mounting bases, leg support plates and foot support pads. Through the cooperation of threaded rods and clamps, it achieves stable support and adjustment for the legs, which conforms to ergonomic design.

Benefits of technology

It provides stable and comfortable leg support, meeting the support needs at different heights and angles, and improving the postoperative rehabilitation experience for patients.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a patient knee joint body position supporting device which can be fixed on a bed body. The patient knee joint body position supporting device capable of being fixed to the bed body comprises the bed body, and sliding rails are installed on the two sides of the bed body. The sliding rails are installed on the two sides of the bed body, the two installation bases are installed on the sliding rails, the leg supporting plate is installed on the top of the installation base on the left side, and when a patient lies on the bed body and bends the legs to enable the thighs and the shanks to be in an acute angle state, the thighs of the patient can be automatically turned outwards; the leg supporting plate is arranged on one mounting seat, so that the thighs of the patient can be supported through the leg supporting plate, the requirement for supporting the thighs of the patient lying on the bed body is met, the foot supporting pad of an arc-shaped structure is mounted on the top of the other mounting seat, the feet of the patient can be supported, the feet of the patient form an upward angle, the human engineering is met, and the patient feels more comfortable. Compared with tools used by medical staff at present, the device is more professional, and the patient feels more comfortable.
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Description

Technical Field

[0001] This utility model belongs to the field of rehabilitation technology after knee replacement surgery, and in particular relates to a patient knee joint positioning support device that can be fixed to the bed. Background Technology

[0002] Knee replacement surgery is a surgical treatment for severe knee joint diseases. Knee replacement surgery, also known as knee resurfacing surgery, involves removing degenerated, worn, and deformed osteocartilage and replacing it with an artificial joint. This surgery is not, as commonly understood, "cutting off bone and replacing the entire kneecap," but rather removing only the damaged osteocartilage on the surface of the knee joint, preserving the normal bone base. Like a dental implant, it provides an artificial "shell" for the knee. If only the medial or lateral side of the knee is affected by osteoarthritis, and the other side is relatively better, unicompartmental knee replacement can be chosen. Unicompartmental knee replacement is less invasive, less traumatic, has a faster recovery, and provides better sensation. However, unicompartmental knee replacement has strict indications, and if the other side also experiences severe wear later, a total knee replacement will be necessary. When both the medial and lateral sides of the knee are severely worn, a total knee replacement is required. During the rehabilitation process after knee replacement surgery, support needs to be provided for the legs of patients lying in bed.

[0003] Currently, hospitals lack specialized devices to support the legs of patients who have undergone knee replacement surgery. Medical staff typically use common support plates or straps to immobilize the patient's legs. Such support methods are not very stable or comfortable and require frequent adjustments, thus affecting the patient's postoperative rehabilitation. Therefore, it is necessary to provide a patient knee joint positioning support device that can be fixed to the bed to solve the above problems. Utility Model Content

[0004] The technical content of this utility model is to provide a patient knee joint positioning support device that can be fixed to the bed.

[0005] To address the aforementioned problems, this utility model provides a patient knee joint positioning support device that can be fixed to a bed. The device includes a bed frame with slide rails installed on both sides. Slide rails have grooves at their top and bottom, and sealing blocks are installed at both ends. Two sets of mounting seats are installed on the slide rails. A threaded tube with a threaded rod is installed on the left side of each mounting seat, and a clamping plate is installed at the other end of the threaded rod. A slide groove plate is installed on the top of the left-side mounting seat, and a slider is installed in the slide groove plate. A fixing seat is installed on the side of the slider, and a mounting plate and a locking pin are installed in the fixing seat. A leg support plate is installed on the right side of the mounting plate via two sets of hinged seats. A soft pad is installed on the inner side of the leg support plate. A foot support pad is installed on the top of the right-side mounting seat via an L-plate.

[0006] As a further solution of this utility model, two sets of fixing bolts are installed on both sides of the slide rail. The fixing bolts pass through the fixing holes opened on both sides of the slide rail and the bed body, thereby fixing the slide rail on both sides of the bed body.

[0007] As a further solution of this utility model, the slide grooves opened at the top and bottom center of the slide rail pass through both ends of the slide rail, and the inner side of the mounting base is configured to be adapted to the slide rail. The top and bottom of the inner side of the mounting base are engaged into the slide grooves opened at the top and bottom of the slide rail, thereby installing the mounting base on the slide rail.

[0008] As a further solution of this utility model, the sealing block is fixedly installed on both sides of the slide rail by fixing bolts. The width and thickness of the sealing block are both greater than the width and thickness of the slide rail, so that the two ends of the slide rail can be sealed by the sealing block.

[0009] As a further solution of this utility model, a groove is provided on the right side of the slide plate, the top of the slide plate is set as an open structure, and both the slider and the groove are set as T-shaped structures, so that the slider cannot disengage laterally from the groove.

[0010] As a further solution of this utility model, the interior of the fixing seat is set as a hollow structure and the size is the same as that of the mounting plate. The right side of the fixing seat is set as an open structure. Multiple sets of through holes are evenly opened on the mounting plate. The right end of the fixing seat is opened with a through hole. The locking pin is installed in the through hole. The leg support plate is set as an arc-shaped structure. The left side of the leg support plate is hinged to both sets of hinge seats, so that the leg support plate can rotate within a certain range.

[0011] As a further solution of this utility model, the foot support pad is configured as an arc-shaped structure, the threaded tube is fixedly installed in the mounting hole opened on the left side of the mounting base, the outer side of the threaded rod and the inner side of the threaded tube are configured as matching threaded groove structures, and the end of the threaded rod on the outer side of the mounting base is configured as a hexagonal structure. Leg support plates and foot support pads are installed on both sides of the bed, thereby providing support for the patient's legs and feet.

[0012] Compared with related technologies, the patient knee joint positioning support device that can be fixed to the bed provided by this utility model has the following beneficial effects:

[0013] 1. This utility model features slide rails installed on both sides of the bed, with two sets of mounting seats on the slide rails. The top of the mounting seat on the left side is equipped with a leg support plate. When the patient lies on the bed and bends their legs to form an acute angle between their thigh and calf, their thigh will automatically turn outward, allowing the leg support plate to support their thigh and meet the thigh support needs of the patient lying on the bed. The top of the other mounting seat is equipped with an arc-shaped foot support pad, which provides support for the patient's feet, allowing them to be positioned at an upward angle, which is ergonomic and more comfortable. Compared to the tools currently used by medical staff, this device is more professional and provides greater comfort for the patient.

[0014] 2. This utility model involves installing an installation plate in a fixed base. The installation plate has multiple sets of through holes evenly spaced. A through hole is located at the right end of the fixed base, and a locking pin is installed in the through hole, thereby locking the installation plate in the fixed base. At the same time, the extension of the installation plate out of the fixed base can be adjusted, thereby adjusting the depth of the leg support plate installed on the right side of the installation plate along the width of the bed. This allows the leg support plate to be hinged to the right side of the installation plate via two sets of hinge seats, enabling the leg support plate to rotate within a certain range on the right side of the installation plate. This provides support for the patient's thighs when they are at different heights and distances from the edge of the bed.

[0015] 3. This utility model involves installing a threaded tube on a mounting base, with a threaded rod inside the threaded tube. A clamping plate is installed on the inner side of the threaded rod on the mounting base, and the outer end of the threaded rod on the mounting base is designed with a hexagonal structure. By rotating the threaded rod, the threaded rod can be moved along the threaded tube. This drives the clamping plate to move towards the outer side of the slide rail and locks the clamping plate against the outer side of the slide rail. This increases the friction between the mounting base and the slide rail, thereby locking the mounting base and preventing it from moving along the slide rail under slight external force. When it is necessary to slide the mounting base, the clamping plate can be driven away from the slide rail. This allows for free adjustment and locking of the distance between the two sets of mounting bases, making the device more convenient to use. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a top-view three-dimensional structural diagram of a patient knee joint positioning support device that can be fixed to a bed according to the present invention;

[0018] Figure 2 This is a schematic diagram of the disassembled slide rail and the disassembled structure of the bed body of a patient knee joint positioning support device that can be fixed to the bed body according to the present invention.

[0019] Figure 3This is an exploded view of the slide rail structure of a patient knee joint positioning support device that can be fixed to a bed according to the present invention.

[0020] Figure 4 This is a side view of the leg support plate of a patient knee joint positioning support device that can be fixed to a bed according to the present invention.

[0021] Figure 5 This is a schematic diagram of the mounting base and slide rail structure of a patient knee joint positioning support device that can be fixed to a bed according to the present invention;

[0022] Figure 6 This is a schematic diagram of the inner structure of the mounting base of a patient knee joint positioning support device that can be fixed to a bed according to the present invention.

[0023] Figure 7 This is a schematic diagram of the side structure of the slide plate of a patient knee joint positioning support device that can be fixed to the bed frame according to the present invention;

[0024] Figure 8 This is an exploded view of the fixing seat of a patient knee joint positioning support device that can be fixed to a bed according to the present invention.

[0025] In the diagram: 1. Bed frame; 2. Slide rail; 3. Sealing block; 4. Mounting seat; 5. Threaded pipe; 6. Threaded rod; 7. Clamping plate; 8. Slide rail plate; 9. Slider; 10. Fixed seat; 11. Mounting plate; 12. Locking pin; 13. Hinge seat; 14. Leg support plate; 15. Soft pad; 16. L-plate; 17. Foot support pad. Detailed Implementation

[0026] Please refer to the following: Figure 1-8 A patient knee joint positioning support device that can be fixed to a bed includes a bed body 1. Slide rails 2 are installed on both sides of the bed body 1. Slide rails 2 have grooves at their top and bottom. Sealing blocks 3 are installed at both ends of the slide rails 2. Two sets of mounting seats 4 are installed on the slide rails 2. A threaded tube 5 is installed on the left side of each mounting seat 4, containing a threaded rod 6. A clamping plate 7 is installed at the other end of the threaded rod 6. A sliding groove plate 8 is installed on the top of the left set of mounting seats 4. A slider 9 is installed in the sliding groove plate 8. A fixing seat 10 is installed on the side of the slider 9. A mounting plate 11 is installed in the fixing seat 10. A locking pin 12 is installed in the fixing seat 10. A leg support plate 14 is installed on the right side of the mounting plate 11 via two sets of hinged seats 13. A soft pad 15 is installed on the inner side of the leg support plate 14. A foot support pad 17 is installed on the top of the right set of mounting seats 4 via an L-plate 16.

[0027] Preferably, two sets of fixing bolts are installed on both sides of the slide rail 2. The fixing bolts pass through the fixing holes opened on both sides of the slide rail 2 and the bed body 1, thereby fixing the slide rail 2 on both sides of the bed body 1.

[0028] Preferably, the grooves opened at the top and bottom center of the slide rail 2 pass through both ends of the slide rail 2, and the inner side of the mounting base 4 is configured to be adapted to the slide rail 2. The top and bottom of the inner side of the mounting base 4 are engaged in the grooves opened at the top and bottom of the slide rail 2, thereby mounting the mounting base 4 on the slide rail 2, so that the mounting base 4 can move along the slide rail 2 but cannot be disengaged from the slide rail 2.

[0029] Preferably, the sealing block 3 is fixedly installed on both sides of the slide rail 2 by fixing bolts. The width and thickness of the sealing block 3 are greater than the width and thickness of the slide rail 2. Thus, the sealing block 3 can seal both ends of the slide rail 2, so that the mounting seat 4 installed on the slide rail 2 cannot detach from the slide rail 2 during the sliding process, thereby increasing the overall integrity of the device.

[0030] Preferably, a groove is provided on the right side of the slide plate 8, and the top of the slide plate 8 is set as an open structure, so that the slider 9 can be installed into the groove from the top of the slide plate 8. Both the slider 9 and the groove are set as T-shaped structures, so that the slider 9 cannot be disengaged laterally from the groove, and thus the structure installed on the side of the slider 9 will not be displaced along the wide side of the bed body 1. There is frictional damping between the slider 9 and the groove, so that the slider 9 will not fall down along the groove by gravity without downward pushing force, thereby ensuring the stability of the slider 9 and its side structure.

[0031] Preferably, the interior of the fixing seat 10 is hollow and has the same dimensions as the mounting plate 11. The right side of the fixing seat 10 is open, and multiple sets of through holes are evenly distributed on the mounting plate 11. The right end of the fixing seat 10 has a through hole, and the locking pin 12 is installed in the through hole, thereby locking the mounting plate 11 in the fixing seat 10. At the same time, the extension of the mounting plate 11 out of the fixing seat 10 can be adjusted, thereby adjusting the depth of the leg support plate 14 installed on the right side of the mounting plate 11 along the wide side of the bed 1. When the patient lies on the bed 1 and bends their legs so that the thigh and calf form an acute angle, their thigh will automatically turn outward, so that the leg support plate 14 can support their thigh, satisfying the patient's lying position. The patient's thighs require support on the bed 1. The leg support plate 14 is designed with an arc-shaped structure so that it can fit the outer side of the human thigh. The soft pad 15 can increase the patient's leg comfort. The left side of the leg support plate 14 is hinged to both sets of hinge seats 13, so that the leg support plate 14 can rotate within a certain range on the right side of the mounting plate 11, thereby providing support for the patient's thighs when they are at different heights. Since the force on the leg support plate 14 when supporting the patient's thighs is mostly in the horizontal direction, the slider 9 will not rise and fall along the groove opened on the side of the slide plate 8, thus ensuring the stability of the height of the leg support plate 14.

[0032] Preferably, the foot support pad 17 is designed with an arc shape, providing support for the patient's feet and positioning them at an upward angle, which is ergonomic and more comfortable. The distance between the foot support pad 17 and the leg support plate 14 can be adjusted by adjusting the spacing between the two sets of mounting seats 4, thereby meeting the support needs of the patient's legs under different degrees of bending. The threaded tube 5 is fixedly installed in the mounting hole on the left side of the mounting seat 4. The outer side of the threaded rod 6 and the inner side of the threaded tube 5 are designed with matching threaded groove structures, and the end of the threaded rod 6 on the outer side of the mounting seat 4 is designed with a hexagonal structure. Thus, by rotating the threaded rod 6, the threaded rod 6 can move along the threaded tube 5, thereby driving the threaded rod... 6 drives the clamp 7 to move towards the outside of the slide rail 2 and locks the clamp 7 against the outside of the slide rail 2. This increases the friction between the mounting seat 4 and the slide rail 2, thereby locking the mounting seat 4 so that it cannot move along the slide rail 2 under slight external force. This fixes the distance between the two sets of mounting seats 4. When it is necessary to adjust the distance between the two sets of mounting seats 4, rotate the threaded rod 6 to disengage the clamp 7 from the slide rail 2. Both sides of the bed 1 are equipped with leg support plates 14 and foot support pads 17, which can provide support for the patient's legs and feet. This allows patients who have undergone knee replacement surgery to lie more comfortably on the bed 1, as they cannot exert force to maintain the stability of their legs, thus assisting in the patient's rehabilitation treatment.

[0033] The standard parts used in this embodiment can be purchased directly from the market, and can also be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0034] 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, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. A patient knee joint positioning support device that can be fixed to a bed, comprising a bed (1), wherein slide rails (2) are installed on both sides of the bed (1), characterized in that: The slide rail (2) has grooves at both its top and bottom. Sealing blocks (3) are installed at both ends of the slide rail (2). Two sets of mounting seats (4) are installed on the slide rail (2). A threaded pipe (5) is installed on the left side of each mounting seat (4), in which a threaded rod (6) is installed. A clamping plate (7) is installed at the other end of the threaded rod (6). A sliding groove plate (8) is installed on the top of the left set of mounting seats (4), and a slider (9) is installed in the sliding groove plate (8). A fixed seat (10) is installed on the side of the slider (9). An mounting plate (11) is installed in the fixed seat (10). A locking pin (12) is installed in the fixed seat (10). A leg support plate (14) is installed on the right side of the mounting plate (11) through two sets of hinge seats (13). A soft pad (15) is installed on the inner side of the leg support plate (14). A foot support pad (17) is installed on the top of a set of mounting seats (4) on the right side through an L-plate (16).

2. The patient knee joint positioning support device that can be fixed to a bed according to claim 1, characterized in that: Two sets of fixing bolts are installed on both sides of the slide rail (2), and the fixing bolts pass through the fixing holes opened on both sides of the slide rail (2) and the bed (1).

3. The patient knee joint positioning support device that can be fixed to a bed according to claim 1, characterized in that: The slide grooves opened at the top and bottom center of the slide rail (2) pass through both ends of the slide rail (2). The inner side of the mounting base (4) is configured to be adapted to the slide rail (2). The top and bottom of the inner side of the mounting base (4) are engaged in the slide grooves opened at the top and bottom of the slide rail (2).

4. A patient knee joint positioning support device that can be fixed to a bed according to claim 1, characterized in that: The sealing block (3) is fixedly installed on both sides of the slide rail (2) by fixing bolts. The width and thickness of the sealing block (3) are both greater than the width and thickness of the slide rail (2).

5. A patient knee joint positioning support device that can be fixed to a bed according to claim 1, characterized in that: The slide plate (8) has a slide groove on its right side, and the top of the slide plate (8) is set as an open structure. Both the slider (9) and the slide groove are set as T-shaped structures.

6. A patient knee joint positioning support device that can be fixed to a bed according to claim 1, characterized in that: The interior of the fixing seat (10) is hollow and the size is the same as that of the mounting plate (11). The right side of the fixing seat (10) is open. Multiple sets of through holes are evenly opened on the mounting plate (11). The right end of the fixing seat (10) is provided with a through hole. The locking pin (12) is installed in the through hole. The leg support plate (14) is arc-shaped. The left side of the leg support plate (14) is hinged to both sets of hinge seats (13).

7. A patient knee joint positioning support device that can be fixed to a bed according to claim 1, characterized in that: The foot support pad (17) is configured as an arc-shaped structure. The threaded tube (5) is fixedly installed in the mounting hole opened on the left side of the mounting base (4). The outer side of the threaded rod (6) and the inner side of the threaded tube (5) are configured as matching threaded groove structures. The end of the threaded rod (6) located on the outer side of the mounting base (4) is configured as a hexagonal structure. Leg support plates (14) and foot support pads (17) are installed on both sides of the bed body (1).