Stable operation leg support for skin preparation

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, especially a stable operation spare skin pit leg support, including base, the top of base is provided with height adjusting mechanism, height adjusting mechanism includes adjusting lever, through the height of adjusting lever is matched the height of different patient's limbs, the top of adjusting lever is provided with angle adjusting mechanism, changes the support angle of patient's limbs through angle adjusting mechanism. The application realizes electric lifting through setting height adjusting mechanism, and the universal joint is locked or released quickly through rotating handle, so that stepless regulation and firm fixation of support angle are realized, the body support is provided with silica gel pad with anti -skid recess, the base is cross -shaped structure and is equipped with brake universal wheel, solve the existing leg support stability is poor, the problem of inconvenient adjustment, have the advantages such as anti -shaking, convenient operation, strong adaptability, especially applicable to the cleaning and disinfection fixation of limb before operation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a stable surgical skin preparation leg support. Background Technology

[0002] Before performing orthopedic and vascular surgery, a certain area of ​​skin on the patient's hand or leg needs to be routinely cleaned and disinfected. During this process, the patient's upper or lower limb is usually elevated and securely fixed to allow medical staff to thoroughly clean and disinfect the affected limb. Currently, commonly used leg (hand) supports have relatively simple structures, typically consisting of a cross-shaped base, a support column, and a U-shaped limb support. These structures have significant drawbacks: First, their simple and thin support structure makes them prone to wobbling when medical staff vigorously wipe the disinfected skin, resulting in poor fixation and stability. This not only affects the aseptic, stability, and smoothness of the cleaning and disinfection process but also poses numerous safety hazards. Second, the adjustment methods for the column height and lifting angle are limited, with low variability and poor fixation. Even after locking, small gaps may remain, causing the column to sway and resulting in insufficient stability. Furthermore, the simple U-shaped support design may not effectively adapt to the limb shapes of patients with different body types, leading to swaying and displacement of the leg within the support. Therefore, there is an urgent need for a cleaning, disinfection, and lifting fixation bracket that can effectively solve the swaying problem and provide stable support. Utility Model Content

[0003] In view of the technical problems of poor fixation and stability and inconvenient adjustment of existing surgical skin preparation leg supports, this utility model proposes a stable surgical skin preparation leg support.

[0004] This utility model proposes a stable surgical leg support frame, including a base, a height adjustment mechanism on the top of the base, an adjustment rod, and an angle adjustment mechanism on the top of the adjustment rod to change the support angle for the patient's limb.

[0005] Preferably, the height adjustment mechanism further includes a servo motor fixedly connected to the top of the base, and a bevel gear is coaxially fixedly connected to the output end of the servo motor.

[0006] The above technical solution utilizes a servo motor connected to a power source. Starting the servo motor facilitates control of the rotation of the bevel gear. The base has four legs, symmetrically distributed in a cross shape, to provide a larger support area and enhance anti-overturning capability.

[0007] Preferably, a protective shell and a limiting rod are fixedly connected to the top center of the base, the bevel gear is rotatably connected to the inner wall of the protective shell, and a mating bevel gear is rotatably connected to the inner bottom of the protective shell, the bevel gear meshing with the mating bevel gear.

[0008] The above technical solution uses a servo motor to drive a bevel gear to mesh with a mating bevel gear and rotate, thereby rotating the threaded rod.

[0009] Preferably, a threaded rod is fixedly connected to the top of the bevel gear, the adjusting rod is threaded to the outside of the threaded rod, and one side of the adjusting rod is sleeved on the outside of the limiting rod.

[0010] The above technical solution utilizes a limiting rod to guide and limit the adjusting rod, enabling the adjusting rod to move up and down as the threaded rod rotates.

[0011] Preferably, the angle adjustment mechanism includes a universal joint rotatably connected to the top of the adjustment rod, a support frame and a buffer rod are fixedly connected to one side of the universal joint, a shaft is fixedly connected between the inner walls of the support frame, and a handle is rotatably connected to the outside of the shaft.

[0012] The above technical solution uses a shaft to limit the handle, and the handle is an eccentric cam quick-lock structure.

[0013] Preferably, the buffer rod is fitted with a spring and a fixing frame. The two ends of the fixing frame are slidably connected to the pivot and bottom of the universal joint, respectively. The two ends of the spring are elastically connected to the fixing frame and the side of the universal joint facing each other, respectively. The side of the fixing frame away from the universal joint is in contact with the handle.

[0014] Through the above technical solution, by rotating the handle, the eccentric cam structure can push and release the fixed frame. Under the action of the spring, the universal joint shaft and the universal joint and the adjusting rod can switch from a fully relaxed state to a fully locked state, ensuring no shaking after locking. A single operation can lock the pitch and rotation degrees of freedom of the universal joint at the same time.

[0015] Preferably, the output end of the universal joint is fixedly connected to a fixed arm, the other end of the fixed arm is fixedly connected to a limb support, a silicone pad is provided in the U-shaped groove of the limb support, and a brakeable universal wheel is fixedly connected to the bottom of the base.

[0016] The above technical solution utilizes a fixed arm to support the limb support. The silicone pad in the U-shaped groove of the limb support has a recessed area in the middle that matches the shape of the hands and feet. The periphery of the recessed area is raised, which can effectively limit the left and right slippage of the heel. Detachable flexible straps can be set on both sides of the limb support to provide auxiliary double fixation for the limb when needed, so as to ensure enhanced stability.

[0017] The beneficial effects of this utility model are as follows: 1. The wide cross-shaped base and the universal joint design with quick-lock function eliminate the wobbling of the adjusting rod and the fixed arm connected by the universal joint from the root, providing a stable reference platform for skin disinfection operations.

[0018] 2. The universal joint adopts an eccentric cam quick-lock structure, which allows medical staff to complete the fixation and release at all angles with one hand, greatly improving the efficiency of preoperative limb placement.

[0019] 3. The silicone pads embedded in the limb support with anti-slip texture and hand and foot recesses not only increase the friction between the limb and the fixed support frame, but also adapt well to the different limb shapes and hand and foot sizes of different patients, achieving "soft fixation" and effectively preventing the limb from sliding in the U-shaped groove.

[0020] 4. The wide base improves the overall anti-tipping performance of the equipment, avoiding the risk of the equipment tipping over due to accidental collisions. The addition of straps also provides extra safety for special patients, agitated patients, or patients with impaired consciousness, and enhances the stability of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a stable surgical skin preparation leg support frame proposed in this utility model; Figure 2 A perspective view of the threaded rod structure of a stable surgical skin preparation leg support frame proposed in this utility model; Figure 3 This is a perspective view of the spring structure of a stable surgical skin preparation leg support frame proposed in this utility model.

[0022] In the diagram: 1. Base; 2. Adjusting rod; 3. Servo motor; 4. Bevel gear; 5. Protective shell; 6. Limiting rod; 7. Matching bevel gear; 71. Threaded rod; 8. Universal joint; 9. Support frame; 10. Buffer rod; 11. Shaft; 12. Handle; 13. Spring; 14. Fixing frame; 15. Fixing arm; 16. Limb support; 17. Silicone pad; 18. Universal wheel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-3A stable surgical leg support frame includes a base 1, a height adjustment mechanism on the top of the base 1, and an adjustment rod 2. The height of the adjustment rod 2 is adjusted to match the limb height of different patients. An angle adjustment mechanism is provided on the top of the adjustment rod 2 to change the support angle of the patient's limb.

[0025] To enable the height adjustment mechanism to operate, the height adjustment mechanism also includes a servo motor 3 fixedly connected to the top of the base 1. The output end of the servo motor 3 is coaxially fixedly connected to a bevel gear 4. The servo motor 3 is connected to a power source, and starting the servo motor 3 facilitates the control of the rotation of the bevel gear 4. The base 1 has four legs, symmetrically distributed in a "+" shape to provide a larger support area and enhance anti-overturning ability. A protective shell 5 and a limiting rod 6 are fixedly connected to the top center of the base 1. The bevel gear 4 is rotatably connected to the inner wall of the protective shell 5. A mating bevel gear 7 is rotatably connected to the inner bottom of the protective shell 5. The bevel gear 4 meshes with the mating bevel gear 7. The servo motor 3 drives the bevel gear 4 and the mating bevel gear 7 to mesh and rotate, driving the threaded rod 71 to rotate. The top of the mating bevel gear 7 is fixedly connected to the threaded rod 71. The adjusting rod 2 is threadedly connected to the outside of the threaded rod 71. One side of the adjusting rod 2 is sleeved on the outside of the limiting rod 6. The limiting rod 6 guides and limits the adjusting rod 2. When the threaded rod 71 rotates, the adjusting rod 2 achieves lifting and lowering movement.

[0026] For the angle adjustment mechanism to operate, the angle adjustment mechanism includes a universal joint 8 rotatably connected to the top of the adjustment rod 2. A support frame 9 and a buffer rod 10 are fixedly connected to one side of the universal joint 8. A shaft 11 is fixedly connected between the inner walls of the support frame 9. A handle 12 is rotatably connected to the outside of the shaft 11, and the handle 12 is limited by the shaft 11. The handle 12 has an eccentric cam quick-lock structure. A spring 13 and a fixing frame 14 are sleeved on the outside of the buffer rod 10. The two ends of the fixing frame 14 are slidably connected to the pivot and bottom of the universal joint 8, respectively. The two ends of the spring 13 are elastically connected to the side of the fixing frame 14 facing the universal joint 8, respectively. The side of the fixing frame 14 away from the universal joint 8 is connected to the handle. 12 fits together. By rotating handle 12, its eccentric cam structure can push and release the fixing frame 14. Under the action of spring 13, the shaft of universal joint 8 and the state between universal joint 8 and adjusting rod 2 can be switched from fully relaxed to fully locked, ensuring no shaking after locking. A single operation can lock the pitch and rotation degrees of freedom of universal joint 8 at the same time. The output end of universal joint 8 is fixedly connected to fixing arm 15, and the other end of fixing arm 15 is fixedly connected to limb support 16. The U-shaped groove of limb support 16 is provided with silicone pad 17. The bottom of base 1 is fixedly connected with brakeable universal wheel 18. The fixing arm 15 supports limb support 16. The silicone pad 17 in the U-shaped groove of limb support 16 has a recessed area in the middle that matches the shape of the hand and foot. The periphery of the recessed area is raised, which can effectively limit the left and right slippage of the heel. The two sides of limb support 16 can be provided with detachable flexible straps for auxiliary double fixation of limb when needed to ensure enhanced stability.

[0027] Working principle: When the power is turned on, the servo motor 3 is started. The servo motor 3 drives the bevel gear 4, which is fixed coaxially with its output shaft, to rotate. The bevel gear 4 drives the meshing bevel gear 7 to rotate, and the threaded rod 71 at its top rotates accordingly. Since the adjusting rod 2 is threadedly connected to the outside of the threaded rod 71 and is restricted from rotating by the limiting rod 6 on one side, the adjusting rod 2 moves vertically up and down along the guide of the limiting rod 6 when the threaded rod 71 rotates, thereby adjusting the limb support 16 to a height suitable for the patient's limb.

[0028] The top of the adjusting rod 2 is connected to the fixed arm 15 and the limb support 16 via the universal joint 8. When it is necessary to adjust the limb support angle, the handle 12 is rotated in the loosening direction (usually counterclockwise). The cam profile of the handle 12 moves away from the fixed frame 14. The fixed frame 14 is relaxed under the elastic force of the spring 13, so that the pivot of the universal joint 8 and the connection between the universal joint 8 and the adjusting rod 2 are in a relaxed state. At this time, the pitch and rotation angles of the limb support 16 can be freely adjusted. After the angle is adjusted to the correct position, the handle 12 is tightened in the opposite direction. The cam part of the handle 12 pushes against the fixed frame 14, forcing the fixed frame 14 to overcome the elastic force of the spring 13 and press the pivot of the universal joint 8 and the related connecting surfaces, thereby instantly locking all degrees of freedom of the universal joint 8 and achieving a stable fixation without shaking.

[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A stable surgical skin preparation leg support, comprising a base (1), characterized in that: The base (1) is provided with a height adjustment mechanism at its top. The height adjustment mechanism includes an adjustment rod (2). The height of the adjustment rod (2) is controlled to match the limb height of different patients. The adjustment rod (2) is provided with an angle adjustment mechanism at its top. The angle adjustment mechanism is used to change the support angle of the patient's limb.

2. The stable surgical skin preparation leg support according to claim 1, characterized in that: The height adjustment mechanism also includes a servo motor (3) fixedly connected to the top of the base (1), and a bevel gear (4) is coaxially fixedly connected to the output end of the servo motor (3).

3. A stable surgical skin preparation leg support according to claim 2, characterized in that: The base (1) has a protective shell (5) and a limiting rod (6) fixedly connected to the top center. The bevel gear (4) is rotatably connected to the inner wall of the protective shell (5). The inner bottom of the protective shell (5) is rotatably connected to a mating bevel gear (7). The bevel gear (4) meshes with the mating bevel gear (7).

4. A stable surgical skin preparation leg support according to claim 3, characterized in that: The top of the bevel gear (7) is fixedly connected to a threaded rod (71), and the adjusting rod (2) is threaded to the outside of the threaded rod (71). One side of the adjusting rod (2) is sleeved on the outside of the limiting rod (6).

5. A stable surgical skin preparation leg support according to claim 4, characterized in that: The angle adjustment mechanism includes a universal joint (8) rotatably connected to the top of the adjustment rod (2). A support frame (9) and a buffer rod (10) are fixedly connected to one side of the universal joint (8). A shaft (11) is fixedly connected between the inner walls of the support frame (9). A handle (12) is rotatably connected to the outside of the shaft (11).

6. A stable surgical skin preparation leg support according to claim 5, characterized in that: The buffer rod (10) is fitted with a spring (13) and a fixing frame (14). The two ends of the fixing frame (14) are slidably connected to the pivot and bottom of the universal joint (8), respectively. The two ends of the spring (13) are elastically connected to the fixing frame (14) and the universal joint (8) on opposite sides, respectively. The side of the fixing frame (14) away from the universal joint (8) is in contact with the handle (12).

7. A stable surgical skin preparation leg support according to claim 6, characterized in that: The output end of the universal joint (8) is fixedly connected to a fixed arm (15), and the other end of the fixed arm (15) is fixedly connected to a limb support (16). A silicone pad (17) is provided in the U-shaped groove of the limb support (16), and a brakeable universal wheel (18) is fixedly connected to the bottom of the base (1).

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