Hand rest for operation

By introducing adjustable components and modular design into the surgical handrest, the problems of difficult adjustment and space occupation of the handrest are solved, achieving flexible adjustment, stable fixation and convenient storage, thus improving the convenience of surgical operation and space utilization efficiency.

CN224112969UActive Publication Date: 2026-04-14NORTHERN JIANGSU PEOPLES HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NORTHERN JIANGSU PEOPLES HOSPITAL
Filing Date
2025-04-27
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing surgical handrest structures are difficult to adjust, prone to displacement, take up a lot of space, and are inconvenient to store, affecting surgical procedures and hospital management.

Method used

The adjustable components include a sliding plate, a connecting plate, a rotating block, a snap-fit ​​groove, and a snap-fit ​​rod. Combined with a limiting plate and a fixing plate, they form an orifice plate, enabling the adjustment of the position and angle of the handrail. The modular design facilitates folding and storage.

Benefits of technology

The handrest allows for flexible adjustment and stable fixation, improving the convenience of surgical procedures and patient comfort, reducing space occupation, and facilitating hospital management.

✦ Generated by Eureka AI based on patent content.

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Abstract

When the hand rest needs to be used, a medical worker transversely slides a sliding plate in mouth-shaped plates on the two sides of an operating bed according to the body type of a patient and the requirement for an operation space, the hand rest is adjusted to the proper position, if the angle of a supporting plate assembly needs to be adjusted, a square clamping rod can be pulled out, and the supporting plate assembly can be used for supporting the hand rest. The fixing state of the first rotating block and the rotating shaft is relieved, the second rotating block is rotated, the supporting plate assembly rotates around the rotating shaft, after the arm supporting angle meeting the requirement of the operative position is adjusted, the square clamping rod is inserted into the hexagonal clamping groove, the angle of the supporting plate assembly is fixed, and after a patient lies on an operating bed, the arm is placed on the hand support. At the moment, the human engineering design of the hand support can effectively disperse the pressure of the arm, the medical staff adjusts the tightness of the binding ribbon through the ribbon adjusting block according to the size of the arm of the patient, the binding ribbon surrounds the arm of the patient by a circle and penetrates through the ribbon adjusting block, and it is ensured that the arm is stably fixed.
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Description

Technical Field

[0001] This utility model relates to the field of operating table technology, specifically a surgical handrest. Background Technology

[0002] Existing surgical handrests have several limitations in practical applications. Firstly, most handrests have a fixed structure, making it difficult to adjust them flexibly according to patient size, surgical position, and operational needs. Secondly, some handrests lack proper fixation, and during surgery, factors such as unconscious patient movement or instrument collisions can easily cause displacement, interfering with the surgical process and potentially leading to medical accidents. Furthermore, existing handrests are inadequate in terms of storage; their complex structure makes them difficult to fold, occupying significant space and hindering centralized management and storage in hospitals. In operating room spaces with limited capacity, this also causes inconvenience for instrument storage and retrieval. Therefore, those skilled in the art have provided a surgical handrest to address the problems mentioned in the background section. Utility Model Content

[0003] The purpose of this invention is to provide a surgical hand rest to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A surgical handrest includes an adjustment assembly comprising a sliding plate, a connecting plate, a first rotating block, a second rotating block, a hexagonal locking groove, a rotating shaft, a rotating slot, and a square locking rod. The upper end of the sliding plate is fixedly connected to the connecting plate, and one end of the connecting plate is fixedly connected to a pair of first rotating blocks. A second rotating block is rotatably connected between the two first rotating blocks. A pair of rotating shafts are fixedly connected to both ends of the second rotating blocks, and the rotating shafts are rotatably connected to the first rotating blocks through the rotating slots. One end of each first rotating block has a rotating slot. A hexagonal locking groove is provided through the rotating shaft and the first rotating block, and a square locking rod is inserted into the rotating shaft and the first rotating block through the hexagonal locking groove.

[0006] Furthermore, the adjustment assembly also includes a fixing plate, which is fixedly connected to both sides of the operating table. A pair of connecting blocks are fixedly connected to the surface of the fixing plate, and a limiting plate is fixedly connected to the connecting blocks. The limiting plate, connecting blocks, and fixing plate form a mouth-shaped plate, and the adjustment assembly is set on the operating table through this mouth-shaped plate. The adjustment assembly is provided with an auxiliary support plate assembly.

[0007] Furthermore, the pallet assembly includes an extended straight plate and a connecting arc plate, with the connecting arc plate fixedly connected to one end of the second rotating block away from the first rotating block, and the extended straight plate fixedly connected to one end of the connecting arc plate.

[0008] Furthermore, the pallet assembly also includes an extended side plate and a hand support. One end of the extended straight plate is fixedly connected to the extended side plate, and the extended side plate and the extended straight plate are fixedly connected to the hand support.

[0009] Furthermore, the support plate assembly also includes a ribbon fixing block, a ribbon adjusting block, and a restraining ribbon. The restraining ribbon is fixedly connected to the surface of the ribbon fixing block, and the restraining ribbon wraps around the patient's arm and passes through the ribbon adjusting block.

[0010] By adopting the above technical solution

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. Through the sliding connection between the mouth-shaped plate and the sliding plate formed by the limiting plate, connecting block and fixing plate, the surgical armrest can be adjusted laterally along both sides of the operating table to meet the needs of patients of different body sizes and surgical operation space; the first rotating block and the second rotating block set on the connecting plate, together with the rotating shaft and the square locking rod, realize multi-angle rotation positioning of the support plate assembly, and can quickly adjust the arm support angle according to the surgical position requirements, improving the convenience of surgical operation and patient comfort;

[0013] 2. The square locking rod in the adjustment component passes through the hexagonal locking groove of the rotating shaft and the first rotating block, forming a rigid fixation after the angle of the support plate is determined. This prevents the support frame from shifting due to patient limb movement or instrument collision during the operation, providing a stable support platform for the surgical operation and reducing surgical risks.

[0014] 3. The hand support in the support assembly is ergonomically designed to distribute arm pressure and reduce limb numbness caused by prolonged surgery; the restraint ribbon, through the cooperation of the ribbon fixing block and the ribbon adjusting block, can not only effectively fix the patient's arm to prevent unconscious movement during the operation and interfere with the operation, but also flexibly adjust the tightness according to the patient's limb size, ensuring the fixation effect while avoiding pressure injury.

[0015] 4. The second rotating block in the adjustment assembly can rotate within the rotating groove of the first rotating block via a rotating shaft, folding the tray assembly towards the operating table to reduce space occupation. The detachable modular design allows each component to be disassembled and stored independently, adapting to storage boxes or shelves of different sizes. Furthermore, the folded armrest is flat and neat, allowing for stacking and storage in operating room corners or instrument cabinets, effectively saving storage space, facilitating centralized hospital management and retrieval, and improving space utilization efficiency. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a surgical handrest;

[0017] Figure 2 A schematic diagram of the overall structure of the adjustment component in a surgical handrest;

[0018] Figure 3 This is a top cross-sectional view of an adjustment component in a surgical handrest.

[0019] Figure 4 In this utility model Figure 3 A magnified view of the structure at point A;

[0020] In the diagram: 1. Operating table; 2. Limiting plate; 3. Connecting block; 4. Fixing plate; 5. Sliding plate; 6. Connecting plate; 7. First rotating block; 8. Second rotating block; 9. Extended side plate; 10. Ribbon fixing block; 11. Hand support; 12. Ribbon adjusting block; 13. Ribbon restraint; 14. Extended straight plate; 15. Connecting arc plate; 16. Hexagonal snap-fit ​​groove; 17. Rotating shaft; 18. Rotating groove; 19. Square snap-fit ​​rod. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1-4 This utility model provides an embodiment of a surgical handrest, including a fixing plate 4, which is fixedly connected to both sides of the operating table 1. A pair of connecting blocks 3 are fixedly connected to the surface of the fixing plate 4. A limiting plate 2 is fixedly connected to the connecting blocks 3, and the limiting plate 2, the connecting blocks 3 and the fixing plate 4 form a mouth-shaped plate. The operating table 1 is provided with an adjustment component for adjusting the position through this mouth-shaped plate, and an auxiliary support plate component is provided on the adjustment component.

[0023] In this embodiment, the adjustment assembly includes a sliding plate 5, a connecting plate 6, a first rotating block 7, a second rotating block 8, a hexagonal snap-fit ​​groove 16, a rotating shaft 17, a rotating groove 18, and a square snap-fit ​​rod 19. The sliding plate 5 is slidably connected within the orifice-shaped plate via a limiting plate 2, a connecting block 3, and a fixing plate 4. A connecting plate 6 is fixedly connected to the upper end of the sliding plate 5. A pair of first rotating blocks 7 are fixedly connected to one end of the connecting plate 6, and a second rotating block 8 is rotatably connected between the two first rotating blocks 7. A pair of rotating shafts 17 are fixedly connected to both ends of the second rotating block 8. A rotating groove 18 is provided at one end of each first rotating block 7, and the rotating shaft 17 is rotatably connected to the first rotating block 7 through the rotating groove 18. A hexagonal snap-fit ​​groove 16 is provided through the rotating shaft 17 and the first rotating block 7, and a square snap-fit ​​rod 19 is inserted into the rotating shaft 17 and the first rotating block 7 through the hexagonal snap-fit ​​groove 16. The fixing plate 4 is fixedly connected to both sides of the operating table 1 by welding or bolting. The surface of the fixing plate 4 is also welded or bolted. A pair of connecting blocks 3 are connected, and a limiting plate 2 is vertically fixed on the connecting blocks 3. Thus, the limiting plate 2, connecting blocks 3, and fixing plate 4 together constitute the mouth-shaped plate structure. A sliding plate 5 is adapted to be installed inside the mouth-shaped plate. A guide rail and a slider can be installed between the sliding plate 5 and the inner wall of the mouth-shaped plate to ensure that the sliding plate 5 can slide stably laterally within the mouth-shaped plate. At the upper end of the sliding plate 5, a connecting plate 6 is fixed by welding or bolting. A pair of first rotating blocks 7 are welded to one end of the connecting plate 6. The two first rotating blocks 7 are arranged in parallel and on opposite surfaces. A circular rotating groove 18 is provided. The outer diameter of the rotating shaft 17 fixed at both ends of the second rotating block 8 matches the inner diameter of the rotating groove 18. The rotating shaft 17 is embedded in the rotating groove 18, so that the second rotating block 8 can rotate between the two first rotating blocks 7. At the same time, a hexagonal snap-fit ​​groove 16 is provided through the corresponding position on the rotating shaft 17 and the first rotating block 7. The size of the hexagonal snap-fit ​​groove 16 is suitable for the square snap-fit ​​rod 19, ensuring that the square snap-fit ​​rod 19 can be tightly inserted, thereby fixing the rotating shaft 17 and the first rotating block 7.

[0024] In this embodiment, the support plate assembly includes an extension side plate 9, a ribbon fixing block 10, a hand support 11, a ribbon adjusting block 12, a ribbon restraint 13, an extension straight plate 14, and a connecting arc plate 15. The second rotating block 8 has a connecting arc plate 15 fixedly connected to one end away from the first rotating block 7. An extension straight plate 14 is fixedly connected to one end of the connecting arc plate 15, and an extension side plate 9 is fixedly connected to one end of the extension straight plate 14. A hand support 11 is fixedly connected to the surfaces of the extension side plate 9 and the extension straight plate 14. A ribbon fixing block 10 and a ribbon adjusting block 12 are fixedly connected to the surface of the straight plate 14, and the ribbon fixing block 10 and the ribbon adjusting block 12 are located on the same horizontal line. A binding ribbon 13 is fixedly connected to the surface of the ribbon fixing block 10, and the binding ribbon 13 wraps around the patient's arm and passes through the ribbon adjusting block 12. At the end of the second rotating block 8 away from the first rotating block 7, an arc plate 15 is welded to it. An extension straight plate 14 is welded to one end of the arc plate 15, and an extension side plate 9 is welded to one end of the extension straight plate 14, forming an L-shaped... The support structure is designed such that a hand rest 11 is installed on the surfaces of the extended side plate 9 and the extended straight plate 14 by means of glue or bolts. The hand rest 11 is made of ergonomically designed sponge or silicone material to improve the comfort of the patient's arm placement. A ribbon fixing block 10 and a ribbon adjusting block 12 are fixed on the surfaces of the extended side plate 9 and the extended straight plate 14 by bolts. The two are located on the same horizontal line. A binding ribbon 13 is sewn onto the surface of the ribbon fixing block 10. The binding ribbon 13 is made of soft and breathable fabric and is long enough to wrap around the patient's arm and pass through the ribbon adjusting block 12.

[0025] When a handrest is needed, medical staff adjust the handrest to a suitable position by sliding the sliding plate 5 laterally within the mouth-shaped plate on both sides of the operating table 1, according to the patient's body size and the required surgical operating space. If the angle of the support assembly needs to be adjusted, the square locking rod 19 can be pulled out to release the first rotating block 7 from the rotating shaft 17. The second rotating block 8 is then rotated to make the support assembly rotate around the rotating shaft 17. After adjusting to the arm support angle that meets the requirements of the surgical position, the square locking rod 19 is inserted into the hexagonal locking slot 16 to fix the angle of the support assembly. After the patient lies on the operating table 1, the arm is placed on the hand rest 11. At this time, the ergonomic design of the hand rest 11 can effectively distribute the arm pressure. Medical staff adjust the tightness of the restraint ribbon 13 through the ribbon adjustment block 12 according to the patient's arm size. The restraint belt 13 wraps around the patient's arm and passes through the ribbon adjustment block 12 to ensure the arm is securely fixed, preventing unintentional movement during surgery that could interfere with the procedure. It also avoids pressure injuries caused by excessive tightness. After the surgery, the restraint belt 13 is first removed from the patient's arm. Then, the square locking rod 19 is pulled out, and the second rotating block 8 is rotated to fold the tray assembly toward the operating table 1, so that the tray assembly fits against the side of the operating table 1, reducing the space occupied. Next, the components can be disassembled as needed, such as unscrewing the bolts to separate the sliding plate 5 from the connecting plate 6, the adjustment component from the tray assembly, etc. The disassembled parts are stored in storage boxes or shelves. The folded armrest is flat and neat, and can be stacked and stored in the corner of the operating room or in the instrument cabinet, which is convenient for centralized management and retrieval by the hospital, improving space utilization efficiency.

[0026] The surgical armrest can be laterally adjusted along both sides of the operating table 1 via the sliding connection between the mouth-shaped plate (limiting plate 2), connecting block 3, and fixing plate 4, and the sliding plate 5, to meet the needs of patients of different body sizes and surgical operation space. The first rotating block 7 and the second rotating block 8 on the connecting plate 6, in conjunction with the rotating shaft 17 and the square locking rod 19, enable multi-angle rotational positioning of the support assembly. This allows for rapid adjustment of the arm support angle according to the surgical position requirements, improving surgical convenience and patient comfort. The square locking rod 19 in the adjustment assembly passes through the hexagonal locking groove 16 of the rotating shaft 17 and the first rotating block 7, forming a rigid fixation after the support angle is determined, preventing the armrest from shifting due to patient limb movement or instrument collision during surgery, thus facilitating surgical operation. The system provides a stable support platform, reducing surgical risks. The hand rest 11 in the support assembly is ergonomically designed to distribute arm pressure and reduce limb numbness caused by prolonged surgery. The restraint ribbon 13, through the cooperation of the ribbon fixing block 10 and the ribbon adjusting block 12, effectively fixes the patient's arm to prevent unconscious movement during surgery and can flexibly adjust the tightness according to the patient's limb size, ensuring fixation while avoiding pressure injury. The second rotating block 8 in the adjusting assembly can rotate within the rotating groove 18 of the first rotating block 7 via the rotating shaft 17, folding the support assembly towards the operating table 1 to reduce space occupation. The detachable modular design allows each component to be disassembled and stored independently, adapting to storage boxes or shelves of different sizes. In addition, the folded armrest is flat and neat, and can be stacked and stored in the corner of the operating room or in the instrument cabinet, effectively saving storage space, facilitating centralized management and retrieval by the hospital, and improving space utilization efficiency.

[0027] This specification describes embodiments, but not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A surgical handrest, comprising an adjustment assembly, characterized in that, The adjustment assembly includes a sliding plate (5), a connecting plate (6), a first rotating block (7), a second rotating block (8), a hexagonal snap-fit ​​groove (16), a rotating shaft (17), a rotating groove (18), and a square snap-fit ​​rod (19). The upper end of the sliding plate (5) is fixedly connected to the connecting plate (6). One end of the connecting plate (6) is fixedly connected to a pair of first rotating blocks (7), and the two first rotating blocks (7) are rotatably connected to a second rotating block (8). Both ends of the second rotating block (8) are fixedly connected to a pair of rotating shafts (17), and the rotating shafts (17) are rotatably connected to the first rotating blocks (7) through the rotating groove (18). One end of the first rotating block (7) is provided with a rotating groove (18). The rotating shaft (17) and the first rotating block (7) are provided with a hexagonal snap-fit ​​groove (16), and the rotating shaft (17) and the first rotating block (7) are connected to a square snap-fit ​​rod (19) through the hexagonal snap-fit ​​groove (16).

2. The surgical armrest according to claim 1, characterized in that, The adjustment assembly also includes a fixing plate (4), which is fixedly connected to both sides of the operating table (1). A pair of connecting blocks (3) are fixedly connected to the surface of the fixing plate (4). A limiting plate (2) is fixedly connected to the connecting block (3). The limiting plate (2), the connecting block (3) and the fixing plate (4) form a mouth-shaped plate. The adjustment assembly is set on the operating table (1) through this mouth-shaped plate. An auxiliary support plate assembly is provided on the adjustment assembly.

3. A surgical armrest according to claim 2, characterized in that, The pallet assembly includes an extended straight plate (14) and a connecting arc plate (15). The second rotating block (8) is fixedly connected to the connecting arc plate (15) at one end away from the first rotating block (7), and the extended straight plate (14) is fixedly connected to one end of the connecting arc plate (15).

4. A surgical armrest according to claim 3, characterized in that, The pallet assembly also includes an extended side plate (9) and a hand support (11). One end of the extended straight plate (14) is fixedly connected to the extended side plate (9), and the extended side plate (9) and the extended straight plate (14) are fixedly connected to the hand support (11).

5. A surgical armrest according to claim 4, characterized in that, The support plate assembly also includes a ribbon fixing block (10), a ribbon adjusting block (12), and a binding ribbon (13). The binding ribbon (13) is fixedly connected to the surface of the ribbon fixing block (10), and the binding ribbon (13) wraps around the patient's arm and passes through the ribbon adjusting block (12).