Leg positioner

By designing an adjustable leg support frame, the problems of pressure or unstable support caused by a fixed support width are solved by using a drive unit and a telescopic plate, thus achieving stability and comfort in leg support.

CN224461942UActive Publication Date: 2026-07-07THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
Filing Date
2025-07-23
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The existing leg positioning frames have a fixed width of the support plate, which cannot meet the needs of patients with different leg lengths, resulting in problems such as compression or unstable support.

Method used

A leg support frame was designed, comprising a main support plate and a secondary support plate. The secondary support plate is moved closer to or further away from the main support plate by a drive mechanism to adjust the support width. The frame is combined with a telescopic plate and an elastic sponge pad to improve comfort and stability.

Benefits of technology

This allows for adjustment of the support width based on the patient's leg length, avoiding compression or unstable support, and improving the device's practicality and comfort.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224461942U_ABST
    Figure CN224461942U_ABST
Patent Text Reader

Abstract

The utility model belongs to provide a kind of leg body position frame, including main supporting plate and extension assembly, extension assembly includes vice supporting plate and driving part. Two groups of vice supporting plate are relatively close or far away by rotating driving part drive and move, when two groups of vice supporting plate are relatively far away and move with main supporting plate cooperation, the support width to leg can be increased, to avoid that more parts of leg are suspended to cause oppression to leg, two groups of vice supporting plate are relatively close and move with main supporting plate cooperation, the support width to leg can be reduced, to facilitate the contour of leg, leg support is stable, it is convenient to adjust the width of supporting leg according to the length of patient's leg, avoid the phenomenon that oppression or unstable support is caused to patient's leg, improve the practicability of device.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model specifically relates to a leg positioning frame. Background Technology

[0002] Leg positioning frames are medical devices used to assist patients in maintaining specific leg positions. They are commonly used in obstetrics and gynecology, urology, and proctology surgeries and procedures, such as perineal surgery, hysteroscopic surgery, laparoscopic total hysterectomy, cystoscopy, ureteroscopy, and various rectal and anal surgeries.

[0003] In existing leg positioning frames, the width of the support plates is mostly a fixed size. When patients with long legs use them, a support plate that is too narrow will cause a large part of the leg to be suspended, resulting in pressure on the leg. When patients with shorter legs use them, a support plate that is too wide cannot conform to the leg contour, resulting in unstable leg support. Therefore, existing leg positioning frames also have the technical problem of not being able to adjust the width of the leg support, resulting in poor practicality. To address the above technical problems, a new leg positioning frame is proposed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model proposes a leg positioning frame, which makes it easy to adjust the width of the supporting leg according to the length of the patient's leg, so as to avoid the phenomenon of compression or unstable support to the patient's leg and improve the practicality of the device.

[0005] A leg positioning frame, comprising:

[0006] The main support plate is arc-shaped, and a fixing frame is provided on the outer periphery of the main support plate; and

[0007] An extension assembly includes a sub-support plate and a drive component. The sub-support plate is arc-shaped and adapted to the main support plate. The main support plate has sub-support plates at both ends that slide along its axial direction. The inner circumferential surfaces of the main support plate and the two sets of sub-support plates are flush. The drive component is rotatably disposed on the outer circumferential side of the main support plate and connected to the two sets of sub-support plates. Rotating the drive component can drive the two sets of sub-support plates to move closer or further apart.

[0008] The beneficial effects of the above-mentioned leg positioning frame are as follows:

[0009] The two sets of auxiliary support plates are moved closer or further apart by a rotary drive. When the two sets of auxiliary support plates move further apart and cooperate with the main support plate, the support width for the leg is increased, thus avoiding excessive pressure on the leg caused by a large portion of the leg being suspended in the air. When the two sets of auxiliary support plates move closer together and cooperate with the main support plate, the support width for the leg is reduced, thus making it easier to conform to the leg contour and providing stable leg support. This allows for easy adjustment of the support width according to the length of the patient's leg, avoiding pressure on the patient's leg or unstable support, and improving the practicality of the device.

[0010] In one embodiment, two sets of guide rods are arranged opposite each other on the outer periphery of the main support plate, and two sets of connecting sleeves are arranged opposite each other on the outer periphery of the two sets of auxiliary support plates. The connecting sleeves are slidably sleeved on the guide rods along the axial direction of the main support plate.

[0011] In one embodiment, the driving component includes a bidirectional screw; the bidirectional screw is rotatably disposed on the outer periphery of the main support plate and is arranged along the axial direction of the main support plate; both sets of the outer periphery of the auxiliary support plates are provided with screw hole seats, and the two sets of screw hole seats are respectively threaded to both ends of the bidirectional screw.

[0012] In one embodiment, an adjustment knob is coaxially provided in the middle of the bidirectional screw.

[0013] In one embodiment, the extension component further includes a telescopic plate; the end of the main support plate is provided with a telescopic groove that extends through it along its axial direction, and multiple sets of the telescopic groove are evenly spaced along the circumference of the main support plate. The opposite ends of the two sets of auxiliary support plates are provided with multiple sets of the telescopic grooves, and the multiple sets of the telescopic plates slide through the multiple sets of the telescopic grooves along the axial direction of the main support plate.

[0014] In one embodiment, a protective component is also included, the protective component comprising an elastic sponge pad covering the inner circumferential surfaces of the main support plate and the two sets of the sub-support plates, and the two ends of the elastic sponge pad being detachably connected to the two sets of the sub-support plates respectively.

[0015] In one embodiment, T-shaped arc blocks are provided on the outer periphery of both ends of the elastic sponge pad, and T-shaped arc grooves are provided on the inner periphery of both sets of auxiliary support plates. The two sets of T-shaped arc blocks can be slidably disposed in the two sets of T-shaped arc grooves and are limited by positioning components.

[0016] In one embodiment, the positioning component includes an arc-shaped spring; two sets of arc-shaped springs are arranged opposite each other on the outer periphery of the two sets of T-shaped arc blocks, and two sets of spring slots are opened opposite each other in the two sets of T-shaped arc grooves, and the arc-shaped springs can be locked in the spring slots. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 A three-dimensional structural diagram of a leg positioning frame provided in an embodiment of this utility model;

[0019] Figure 2 for Figure 1A three-dimensional structural diagram of another state of a leg positioning frame is shown;

[0020] Figure 3 for Figure 1 An exploded view of a leg positioning frame is shown.

[0021] Figure 4 for Figure 3 An enlarged schematic diagram of region A in the middle.

[0022] Figure label:

[0023] 1. Fixture;

[0024] 10. Main support plate; 101. Guide rod; 102. Expansion groove;

[0025] 20. Sub-support plate; 201. Connecting sleeve; 202. Double-acting screw; 2021. Adjusting knob; 203. Screw hole seat; 204. Telescopic plate; 205. T-shaped arc groove; 2051. Spring clip slot;

[0026] 30. Elastic sponge pad; 301. T-shaped arc block; 302. Arc-shaped spring sheet. Detailed Implementation

[0027] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0028] Please see Figures 1 to 3 One embodiment of a leg support frame includes a main support plate 10 and an extension assembly. The main support plate 10 is arc-shaped, and a fixing frame 1 is provided on its outer periphery. The extension assembly includes sub-support plates 20 and a driving member. The sub-support plates 20 are arc-shaped and adapted to the main support plate 10. Sub-support plates 20 are provided at both ends of the main support plate 10 and slide along its axial direction. The inner peripheral surfaces of the main support plate 10 and the two sets of sub-support plates 20 are flush. The driving member is rotatably disposed on the outer periphery of the main support plate 10 and connected to the two sets of sub-support plates 20. Rotating the driving member can drive the two sets of sub-support plates 20 to move closer or further apart.

[0029] In the above embodiments, the two sets of auxiliary support plates 20 are driven to move closer or further apart by a rotary drive. When the two sets of auxiliary support plates 20 move further apart and cooperate with the main support plate 10, the support width for the leg can be increased, thereby avoiding pressure on the leg caused by a large part of the leg being suspended in the air. When the two sets of auxiliary support plates 20 move closer together and cooperate with the main support plate 10, the support width for the leg can be reduced, thereby making it easier to fit the contour of the leg, providing stable leg support, and making it easy to adjust the width of the supported leg according to the length of the patient's leg, avoiding pressure on the patient's leg or unstable support, and improving the practicality of the device.

[0030] Specifically, in the above embodiment, two sets of guide rods 101 are arranged opposite each other on the outer periphery of the main support plate 10, and two sets of connecting sleeves 201 are arranged opposite each other on the outer periphery of the two sets of auxiliary support plates 20. The connecting sleeves 201 are slidably sleeved on the guide rods 101 along the axial direction of the main support plate 10. The stability of the sliding of the auxiliary support plate 20 is ensured by the cooperation of the two sets of guide rods 101 and the two sets of connecting sleeves 201.

[0031] Specifically, in the above embodiment, the driving component includes a bidirectional screw 202. The bidirectional screw 202 is rotatably disposed on the outer periphery of the main support plate 10 and is arranged along the axial direction of the main support plate 10. Each of the two sets of auxiliary support plates 20 has a screw hole seat 203 on its outer periphery, and the two sets of screw hole seats 203 are threadedly connected to both ends of the bidirectional screw 202. By rotating the bidirectional screw 202 and engaging with the two sets of screw hole seats 203, the two sets of screw hole seats 203 can be driven to move the two sets of auxiliary support plates 20 closer or further apart. Moving the two sets of auxiliary support plates 20 closer or further apart is convenient. When the bidirectional screw 202 is stopped, the threaded engagement between the bidirectional screw 202 and the two sets of screw hole seats 203 positions the two sets of screw hole seats 203, thereby positioning the two sets of auxiliary support plates 20. Positioning the two sets of auxiliary support plates 20 after movement is convenient.

[0032] Furthermore, an adjustment knob 2021 is coaxially mounted in the middle of the bidirectional screw 202. Rotating the adjustment knob 2021 facilitates driving the bidirectional screw 202 to rotate.

[0033] Please see Figure 2 and Figure 3 In one embodiment, the extension component further includes a telescopic plate 204; the end of the main support plate 10 is provided with a telescopic groove 102 that extends through it along its axial direction, and multiple sets of telescopic grooves 102 are evenly spaced along the circumference of the main support plate 10. The opposite ends of the two sets of auxiliary support plates 20 are provided with multiple sets of telescopic plates 204 corresponding to the multiple sets of telescopic grooves 102, and the multiple sets of telescopic plates 204 slide through the multiple sets of telescopic grooves 102 along the axial direction of the main support plate 10.

[0034] In the above embodiments, by setting multiple sets of telescopic plates 204 to telescopically cooperate with the main support plate 10, the multiple sets of telescopic plates 204 can support the leg part located between the main support plate 10 and the auxiliary support plate 20, further increasing the support area of ​​the device for the legs. Moreover, the multiple sets of telescopic plates 204 are evenly spaced, and the gap between two adjacent sets of telescopic plates 204 helps with ventilation and heat dissipation.

[0035] Please see Figure 1 and Figure 3In one embodiment, a protective component is also included. This component comprises an elastic sponge pad 30, which covers the inner circumferential surfaces of the main support plate 10 and the two sets of auxiliary support plates 20. Both ends of the elastic sponge pad 30 are detachably connected to the two sets of auxiliary support plates 20. The elastic sponge pad 30 improves the comfort of the patient's legs when placed on the main support plate 10 and the two sets of auxiliary support plates 20. Furthermore, the detachable nature of the elastic sponge pad 30 facilitates replacement after use, preventing cross-infection.

[0036] Specifically, in the above embodiment, T-shaped arc blocks 301 are provided on the outer periphery of both ends of the elastic sponge pad 30, and T-shaped arc grooves 205 are provided on the inner periphery of both sets of auxiliary support plates 20. The two sets of T-shaped arc blocks 301 can be slidably disposed in the two sets of T-shaped arc grooves 205 and are limited by the positioning component. By removing the limitation of the positioning component and rotating the elastic sponge pad 30 circumferentially along the main support plate 10, the T-shaped arc blocks 301 can be disassembled from the T-shaped arc grooves 205, thereby making it convenient and effortless to disassemble and replace the elastic sponge pad 30.

[0037] Please refer to the following: Figure 4 Furthermore, the positioning component includes an arc-shaped spring piece 302; two sets of arc-shaped spring pieces 302 are respectively arranged opposite each other on the outer periphery of the two sets of T-shaped arc blocks 301, and two sets of spring piece slots 2051 are respectively opened opposite each other in the two sets of T-shaped arc grooves 205, so that the arc-shaped spring piece 302 can be locked in the spring piece slot 2051. The cooperation between the arc-shaped spring piece 302 and the spring piece slot 2051 facilitates the limiting of the elastic sponge pad 30, and avoids the phenomenon of displacement and falling off the elastic sponge pad 30 during use. By applying force to the elastic sponge pad 30, the arc-shaped spring piece 302 will undergo elastic deformation and exit from the spring piece slot 2051, thus canceling the limiting of the elastic sponge pad 30, making it convenient to cancel the limiting of the elastic sponge pad 30.

[0038] The specific implementation of the above-mentioned leg positioning frame is as follows:

[0039] When the patient's legs are long, rotating the adjustment knob 2021 drives the bidirectional screw 202 to rotate. The rotation of the bidirectional screw 202 engages with the threads of the two sets of screw holes 203, which in turn drive the two sets of auxiliary support plates 20 to move relatively away. The relative movement of the two sets of auxiliary support plates 20, in conjunction with the main support plate 10, increases the support width for the legs, thus preventing excessive leg slack and pressure. When the patient's legs are slightly short, rotating the adjustment knob 2021 in the opposite direction drives the bidirectional screw 202 to rotate in the opposite direction. The reverse rotation of the bidirectional screw 202 engages with the threads of the two sets of screw holes 203, which in turn drive the two sets of screw holes 203 to move relatively closer. The relative movement of the two sets of auxiliary support plates 20, in conjunction with the main support plate 10, reduces the support width for the legs, thus facilitating a better fit to the leg contour and providing stable leg support. This allows for easy adjustment of the support width according to the length of the patient's legs, avoiding pressure or instability, and improving the practicality of the device.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A leg positioning frame, characterized in that, include: The main support plate (10) is arc-shaped, and a fixing frame (1) is provided on the outer periphery of the main support plate (10). and The extension assembly includes a sub-support plate (20) and a drive member. The sub-support plate (20) is arc-shaped and adapted to the main support plate (10). The main support plate (10) has sub-support plates (20) that slide along its axial direction at both ends. The inner circumferential surfaces of the main support plate (10) and the two sets of sub-support plates (20) are flush. The drive member is rotatably disposed on the outer circumferential side of the main support plate (10) and connected to the two sets of sub-support plates (20). Rotating the drive member can drive the two sets of sub-support plates (20) to move closer or further apart.

2. The leg positioning frame according to claim 1, characterized in that, Two sets of guide rods (101) are arranged opposite each other on the outer periphery of the main support plate (10), and two sets of connecting sleeves (201) are arranged opposite each other on the outer periphery of the two sets of auxiliary support plates (20). The connecting sleeves (201) are slidably sleeved on the guide rods (101) along the axial direction of the main support plate (10).

3. A leg positioning frame according to claim 1, characterized in that, The driving component includes a bidirectional screw (202); the bidirectional screw (202) is rotatably disposed on the outer periphery of the main support plate (10) and is arranged along the axial direction of the main support plate (10). Both sets of auxiliary support plates (20) are provided with screw hole seats (203) on their outer periphery, and the two sets of screw hole seats (203) are respectively threaded to both ends of the bidirectional screw (202).

4. A leg positioning frame according to claim 3, characterized in that, An adjustment knob (2021) is coaxially arranged in the middle of the bidirectional screw (202).

5. A leg positioning frame according to claim 1, characterized in that, The extension component also includes a telescopic plate (204); the end of the main support plate (10) is provided with a telescopic groove (102) that runs through it along its axial direction. The telescopic groove (102) is evenly spaced in multiple sets along the circumference of the main support plate (10). The opposite ends of the two sets of auxiliary support plates (20) are provided with multiple sets of telescopic plates (204) corresponding to the multiple sets of telescopic grooves (102). The multiple sets of telescopic plates (204) slide through the multiple sets of telescopic grooves (102) along the axial direction of the main support plate (10).

6. A leg positioning frame according to claim 1, characterized in that, It also includes a protective component, which includes an elastic sponge pad (30) that covers the inner circumferential surfaces of the main support plate (10) and the two sets of the sub-support plates (20), and the two ends of the elastic sponge pad (30) are detachably connected to the two sets of the sub-support plates (20).

7. A leg positioning frame according to claim 6, characterized in that, The elastic sponge pad (30) has T-shaped arc blocks (301) on both outer periphery sides, and the inner periphery of the two sets of auxiliary support plates (20) is provided with T-shaped arc grooves (205). The two sets of T-shaped arc blocks (301) can be slidably disposed in the two sets of T-shaped arc grooves (205) and are limited by positioning components.

8. A leg positioning frame according to claim 7, characterized in that, The positioning component includes an arc-shaped spring piece (302); two sets of arc-shaped spring pieces (302) are respectively arranged on the outer periphery of the two sets of T-shaped arc blocks (301), and two sets of spring piece slots (2051) are respectively opened in the two sets of T-shaped arc grooves (205), and the arc-shaped spring piece (302) can be locked in the spring piece slot (2051).