Multifunctional electric support for lower limbs for surgery

Abstract

The utility model discloses a kind of lower limbs multifunctional electric supports for operation, including operating bed board, the lower limb adjusting mechanism is arranged at the side of operating bed board, and the lower limb fixing mechanism is arranged on the lower limb adjusting mechanism.The utility model can meet the body position requirement of lower limb operation in four directions of up and down, left and right.The lateral movable baffle designed on the both sides of arc lower limb bracket can be opened outward and closed inward, which can accommodate different thickness of thigh, so that the thigh of different people can be firmly fixed in arc lower limb bracket.In addition, the added arc execution mechanism can realize horizontal rotation function, can allow affected limb to abduct and adduct on horizontal plane, meet the needs of various lower limb operations in different body positions.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary devices, specifically to a multifunctional electric support for the lower limbs during surgery. Background Technology

[0002] In lower limb orthopedic surgery, the affected limb often needs to be maintained in a specific surgical position, such as knee extension or flexion. This requires an assistant to help maintain the limb in the required position, which is often a physically demanding process. To address this issue, lower limb positioning braces have been developed, with electrically driven automatic positioning braces being particularly popular among clinicians due to their time-saving and labor-saving features. However, existing electric positioning braces have some drawbacks, such as being limited to unidirectional movement, tourniquet slippage during use, and excessively large range of motion (difficult to control).

[0003] Currently, commonly used lower limb supports in clinical practice often fail to meet the needs of patients with different leg lengths, lacking position and height adjustment functions, which greatly reduces the practicality of lower limb supports. Furthermore, in some special surgical procedures, such as knee arthroscopy, it is necessary to keep the knee joint in a flexed position. This requires an assistant to constantly lift the affected thigh to maintain knee flexion or fix the knee joint, and to continuously change positions. This leads to significant fatigue for the assistant, affects the surgical procedure, and wastes human resources.

[0004] Therefore, there is an urgent need for a multifunctional electric lower limb stent that can meet the needs of different groups of people, is flexible in operation, and provides secure fixation, in order to improve surgical efficiency, save human resources, reduce the number of fluoroscopy sessions, and provide patients with a more comfortable surgical experience. This stent should have multi-directional adjustment functions, such as horizontal rotation, lifting, and positional changes, to adapt to different surgical needs. It should also consider the individual needs of patients, such as tourniquet fixation and leg comfort, to improve the overall quality and safety of the surgery. Utility Model Content

[0005] Existing technologies have problems such as lower limb support frames failing to meet the needs of different groups, poor operational flexibility, unstable tourniquet fixation, and difficulty in adjusting to the required height. Therefore, a multifunctional electric lower limb support for surgery is provided.

[0006] To achieve the above objectives, the present invention adopts the following technical solution. A multifunctional electric lower limb support for surgery includes an operating table board, a lower limb adjustment mechanism is provided on one side of the operating table board, and a lower limb fixation mechanism is provided on the lower limb adjustment mechanism; The lower limb adjustment mechanism includes an X actuator that enables the lower limb fixation mechanism to move left and right along the X-axis, a Y actuator that moves back and forth along the Y-axis, and a Z actuator that moves up and down along the Z-axis.

[0007] As a further optimization of this utility model, the lower limb adjustment mechanism also includes an arc-shaped actuator that enables the lower limb fixation mechanism to move along an arc-shaped trajectory.

[0008] Furthermore, the arc-shaped actuator includes a fixed base and a horizontal rotating rod. The fixed base is fixedly installed on the support frame, and the two ends of the horizontal rotating rod are respectively fixedly connected to the X actuator and the Y actuator by bolts.

[0009] Furthermore, the lower limb fixation mechanism includes an arc-shaped lower limb bracket mounted on the lower limb adjustment mechanism. The arc-shaped lower limb bracket 3 is used to fix the proximal end of the thigh and can move upward and downward. The arc-shaped lower limb support is equipped with movable or openable side baffles on both sides, and an adhesive fixing strap is installed between the two side baffles. The adhesive fixing strap is connected through fixing holes on the side baffles.

[0010] The side movable baffle is connected to the arc-shaped lower limb bracket by a hinge. The inner surface of the arc-shaped lower limb bracket is provided with a pad, and the inner surface of the pad is provided with self-adhesive burrs to prevent the tourniquet from falling off and to facilitate the removal of the tourniquet.

[0011] Furthermore, the X actuator includes a slide rail fixedly mounted on one side of the operating table board and an operating table slide rail fixator, wherein the operating table slide rail fixator can slide and be fixed on the slide rail.

[0012] Furthermore, the Y-actuator includes a sliding connecting rod, a connecting base, and a threaded pressure handle. One end of the sliding connecting rod is fixedly positioned below the arc-shaped lower limb support, while the other end is inserted into a mounting hole on one side of the connecting base. The other side of the connecting base also has a mounting hole where one end of the sliding connecting rod is installed. The other end of the sliding connecting rod is fixedly connected to the Z-actuator. Both sliding connecting rods are secured using the threaded pressure handle. The design allows for pressure fixation of the sliding rods at both ends of the connecting base, and both ends of the connecting base are detachable. The arc-shaped lower limb support can be adjusted to fit both the left and right thighs, meeting the needs of different limbs.

[0013] Furthermore, the Z actuator includes a power actuator that provides power for the lower limb adjustment mechanism to move up and down along the Z-axis, and an electric push rod electrically connected to the power actuator. The electric push rod is movably connected to a linkage mechanism to move the X actuator and the lower limb fixing mechanism up and down along the Z-axis.

[0014] Furthermore, the linkage mechanism includes a support frame and a connector fixedly connected to the electric actuator. One end of the support frame is connected to the electric actuator, and both ends of the connector are hinged to one end of the electric actuator and one end of the support frame, respectively. The connector is fixedly connected to the X actuator. The connector is fixedly connected to the X actuator via a telescopic square connecting rod, the telescopic length of which is adjusted by fixing screws installed on it. The advantage of the telescopic square connecting rod is that it can accommodate patients of different heights.

[0015] Furthermore, the power actuator includes a transformer electrically connected to the electric push rod, and a lifting and lowering switch pedal for adjusting the lifting and lowering of the electric push rod.

[0016] Furthermore, the top of the electric push rod is provided with a threaded section, and one end of the forward / reverse thread adjustment rod is installed on the threaded section. The other end of the forward / reverse thread adjustment rod is hinged to the connector through a connector.

[0017] This invention meets the positional requirements for lower limb surgery, allowing movement in four directions: up, down, left, and right. The side movable baffles on both sides of the arc-shaped lower limb support can open outwards and close inwards, accommodating thighs of varying sizes and ensuring secure fixation for individuals of different body types within the support. Furthermore, the added arc-shaped actuator enables horizontal rotation, allowing the affected limb to abduct and adduct in a horizontal plane, fulfilling the needs of various lower limb surgeries and different positioning requirements.

[0018] As a further optimization of this application, an embedded tourniquet was designed, with a padding connection between the tourniquet and the curved lower limb support to prevent the tourniquet from falling off, making it safer and more convenient. A forward and reverse thread adjustment rod is designed at the proximal end of the electric push rod, allowing manual adjustment of the safe range of motion of the curved lower limb support by rotating the nut, avoiding injury to the human body caused by excessive flexion or extension of the lower limb. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Enlarged view of A in the middle; Figure 3 for Figure 1 Enlarged view of B in the middle; The markings in the attached diagram are as follows: 1. Tourniquet, 2. Pad, 3. Arc-shaped lower limb support, 4. Side movable baffle, 5. Hinge, 6. Adhesive fixing strap, 7. Threaded pressure handle one, 8. Threaded pressure handle two, 9. Connecting base, 10. Sliding connecting rod one, 11. Sliding connecting rod two, 12. Telescopic square connecting rod, 13. Fixing screw, 14. Connector, 15. Forward / reverse tooth adjustment rod, 16. Electric push rod, 17. Support frame, 18. Operating table slide rail fixator, 19. Horizontal rotating rod, 20. Fixed base, 21. Rotating handle, 22. Transformer, 23. Lifting switch pedal, 24. Lowering switch pedal, 25. Slide rail, 26. Operating table board, 27. Height adjustment hole. Detailed Implementation

[0020] like Figure 1 , Figure 2 , Figure 3 As shown, a multifunctional electric lower limb support for surgery includes an operating table 26. A lower limb adjustment mechanism is provided on one side of the operating table, and a lower limb fixation mechanism is provided on the lower limb adjustment mechanism. It also includes an arc-shaped actuator that enables the lower limb fixation mechanism to move along an arc-shaped trajectory. The lower limb adjustment mechanism includes an X-actuator that enables the lower limb fixation mechanism to move left and right along the X-axis, a Y-actuator that moves forward and backward along the Y-axis, and a Z-actuator that moves up and down along the Z-axis. It allows the lower limb to abduct and adduct in a horizontal plane, meeting the requirements of multi-directional positioning during lower limb surgery.

[0021] The arc-shaped actuator includes a fixed base 20 and a horizontal rotating rod 19. The fixed base 20 is fixedly installed on a support frame 17. The support frame 17 is provided with a height adjustment hole 27. The two ends of the horizontal rotating rod 19 are fixedly connected to the X actuator and the Y actuator respectively by bolts. For ease of operation, a rotating handle 21 is installed on the bolt.

[0022] The lower limb adjustment mechanism also includes an arc-shaped actuator that enables the lower limb fixation mechanism to move along an arc-shaped trajectory. The lower limb fixation mechanism includes an arc-shaped lower limb bracket 3 mounted on the lower limb adjustment mechanism. The arc-shaped lower limb bracket 3 is used to fix the proximal thigh and can move upwards and downwards. The arc-shaped lower limb bracket 3 has movable side baffles 4 on both sides, and an adhesive fixing strap 6 is installed between the two side baffles 4. The side baffles 4 are connected to the arc-shaped lower limb bracket 3 via hinges 5, and can open outwards and close inwards on both sides to accommodate thighs of different sizes. The arc-shaped lower limb bracket 3 has a pad 2, and the inner surface of the pad 2 has self-adhesive bristles for fixing the tourniquet 1. The tourniquet 1 is connected to the arc-shaped lower limb bracket by the pad 2, which effectively prevents the tourniquet 1 from falling off.

[0023] The X actuator includes a slide rail 25 fixedly installed on one side of the operating table board and an operating table slide rail fixer 18, which can slide and be fixed on the slide rail 25.

[0024] The Y-actuator comprises a sliding connecting rod 10, a sliding connecting rod 11, a connecting base 9, a threaded pressure handle 7, and a threaded pressure handle 8. One end of the sliding connecting rod 10 is fixedly positioned below the arc-shaped lower limb bracket 3, and the other end is inserted into a mounting hole on one side of the connecting base 9. The other side of the connecting base 9 also has a mounting hole where one end of the sliding connecting rod 11 is installed. The other end of the sliding connecting rod 11 is fixedly connected to the Z-actuator. The sliding connecting rods 1 and 11 are fixed by the threaded pressure handles 7 and 8, respectively. Specifically, one end of the sliding connecting rod 11 is welded to the far end of the square connecting rod, and the other end is inserted into a round hole at the other end of the connecting base 9. The extension and rotation of the arc-shaped lower limb bracket are adjusted by tightening the handle.

[0025] The Z actuator includes a power actuator that provides power for the lower limb adjustment mechanism to move up and down along the Z axis, and an electric push rod 16 electrically connected to the power actuator. The electric push rod 16 is movably connected to a linkage mechanism, which causes the X actuator and the lower limb fixing mechanism to move up and down along the Z axis.

[0026] The linkage mechanism includes a support frame 17 and a connector 14 fixedly connected to the electric push rod 16. One end of the support frame 17 is connected to the electric push rod 16, and the two ends of the connector are respectively hinged to one end of the electric push rod 16 and one end of the support frame 17. The connector is fixedly connected to the X actuator.

[0027] The power actuator includes a transformer 22 electrically connected to the electric push rod 16, and a lift switch pedal 23 and a lower switch pedal 24 for adjusting the lifting and lowering of the electric push rod 16.

[0028] The connector is fixedly connected to the X actuator via a telescopic square connecting rod 12, and the telescopic length of the telescopic square connecting rod 12 is adjusted by the fixing screw 13 installed on it.

[0029] The electric push rod 16 has a threaded section at its top end, and one end of the forward / reverse thread adjustment rod 15 is installed on the threaded section. The other end of the forward / reverse thread adjustment rod 15 is hinged to the connector through a connector. The forward / reverse thread adjustment rod 15 is adjusted using a forward / reverse thread hexagonal nut, which is used to manually adjust the stroke of the electric push rod 16, thereby adjusting the angle of flexion and extension of the knee and hip joint.

Claims

1. A multifunctional electric surgical lower limb support, comprising an operating table board, characterized in that, A lower limb adjustment mechanism is provided on one side of the operating table board, and a lower limb fixation mechanism is provided on the lower limb adjustment mechanism; The lower limb adjustment mechanism includes an X actuator that enables the lower limb fixation mechanism to move left and right along the X-axis, a Y actuator that moves back and forth along the Y-axis, and a Z actuator that moves up and down along the Z-axis. The X actuator includes a slide rail fixedly mounted on one side of the operating table board and an operating table slide rail fixator, wherein the operating table slide rail fixator can slide and be fixed on the slide rail; The Y actuator has a sliding connecting rod, a connecting base, and a threaded pressure handle. One end of the sliding connecting rod is fixedly installed below the arc-shaped lower limb bracket, and the other end is inserted into the mounting hole on one side of the connecting base. The other side of the connecting base also has a mounting hole in which one end of the sliding connecting rod is installed. The other end of the sliding connecting rod is fixedly connected to the Z actuator. The sliding connecting rod one and the sliding connecting rod two are respectively fixed by the threaded pressure handle. The Z-actuator includes a power actuator that provides power for the lower limb adjustment mechanism to move up and down along the Z-axis, and an electric push rod electrically connected to the power actuator. The electric push rod is movably connected to a linkage mechanism, which causes the X-actuator and the lower limb fixing mechanism to move up and down along the Z-axis.

2. The surgical lower limb multifunctional electric support according to claim 1, characterized in that, The lower limb adjustment mechanism also includes an arc-shaped actuator that enables the lower limb fixation mechanism to move along an arc-shaped trajectory.

3. The surgical lower limb multifunctional electric support according to claim 1 or 2, characterized in that, The lower limb fixation mechanism includes an arc-shaped lower limb bracket mounted on the lower limb adjustment mechanism. The arc-shaped lower limb bracket has movable or openable side baffles on both sides, and an adhesive fixing strap is installed between the two side baffles. The side baffles are connected to the arc-shaped lower limb bracket via hinges. The inner side of the arc-shaped lower limb bracket is provided with a pad, and the inner surface of the pad is provided with self-adhesive burrs for fixing the tourniquet.

4. The surgical lower limb multifunctional electric support according to claim 3, characterized in that, The linkage mechanism includes a support frame, a connector, and a telescopic square connecting rod that are fixedly connected to the electric push rod. One end of the support frame is connected to the electric push rod, and both ends of the connector are hinged to one end of the electric push rod and one end of the support frame, respectively. The connector is fixedly connected to the X actuator. The connector is fixedly connected to the X actuator through the telescopic square connecting rod, and the telescopic length of the telescopic square connecting rod is adjusted by fixing screws installed on it.

5. The surgical lower limb multifunctional electric support according to claim 2, characterized in that, The arc-shaped actuator includes a fixed base and a horizontal rotating rod. The fixed base is fixedly installed on the support frame, and the two ends of the horizontal rotating rod are fixedly connected to the X actuator and the Y actuator respectively by bolts.

6. The surgical lower limb multifunctional electric support according to claim 5, characterized in that, The power actuator includes a transformer electrically connected to the electric push rod, and a switch pedal for adjusting the lifting and lowering of the electric push rod.

7. The surgical lower limb multifunctional electric support according to claim 6, characterized in that, The electric push rod has a threaded section at its top, and one end of the forward / reverse thread adjustment rod is installed on the threaded section. The other end of the forward / reverse thread adjustment rod is hinged to the connector through a connector.

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