A multi-module support and positioning frame for knee joint surgery

Abstract

This utility model discloses a multi-module support and positioning frame for knee joint surgery, including a stainless steel base with four foot-operated protrusions on the base to meet the fixation requirements of the knee joint at different angles. These protrusions allow the patient's lower limb to switch between at least five stable positions, enabling unrestricted leg movement. The surface of each foot-operated protrusion has a gel-like support portion. This multi-module support and positioning frame for knee joint surgery, by providing four foot-operated protrusions of varying heights in a stepped distribution on the stainless steel base, can meet the fixation requirements of the knee joint at different angles, allowing the patient's lower limb to switch between at least five stable positions, ensuring unrestricted leg movement. It solves the problem of a single fixation method. The gel-like support portion on the surface of the foot-operated protrusions increases patient comfort, reduces local pressure injury to the skin, reduces discomfort during surgery, and optimizes ergonomic design.

Description

Technical Field

[0001] This utility model relates to the field of medical assistive devices, specifically a multi-module support and positioning frame for knee joint surgery. Background Technology

[0002] In China, knee surgery is developing towards diversification, precision, and minimally invasive techniques, demanding extremely high surgical accuracy. Procedures such as total knee replacement, anterior cruciate ligament repair, and arthroscopic knee surgery all require fixation of the knee joint at different angles during the operation to meet the needs of surgical positioning adjustments. However, current knee fixation devices have several problems. On the one hand, the fixation methods are relatively limited; traditional supports often use mechanical locking or manual adjustment, and frequent intraoperative manipulation not only affects surgical efficiency but also easily loosens and poses an infection risk. On the other hand, their ergonomic design is insufficient, failing to fully consider the surgeon's operating habits and the space for knee joint angle adjustment, easily leading to surgeon fatigue. Furthermore, some supports are made of bulky materials that are difficult to sterilize, increasing the risk of infection and the cost of repeated use. Summary of the Invention

[0003] An embodiment of this utility model provides a multi-module support and positioning frame for knee joint surgery, which aims to solve the problems pointed out in the background art.

[0004] To achieve the above objectives, this utility model provides a multi-module support and positioning frame for knee joint surgery, including a stainless steel base. The stainless steel base has four foot-operated protrusions to meet the fixation requirements of different knee joint angles, and the multiple foot-operated protrusions can switch between at least five stable positions for the patient's lower limbs, realizing unrestricted leg movement. The surface of the foot-operated protrusions is provided with a gel-like support portion to increase patient comfort and reduce local pressure injury to the skin. At least two strap holes are provided on both sides of the stainless steel base for fixing the support and positioning frame to the operating table.

[0005] As a preferred embodiment of this utility model, the multiple foot pedal protrusions have different heights and are distributed in a stepped manner on the surface of the stainless steel base.

[0006] As a preferred embodiment of this utility model, when the patient's lower limbs are fully extended, the top center of the foot pedal protrusion is provided with a U-shaped support that can raise the knee joint.

[0007] As a preferred embodiment of this utility model, multiple hollow grooves are provided on both sides of the foot pedal protrusion.

[0008] As a preferred embodiment of this utility model, the top two sides of the U-shaped support are provided with a strap lifting foot auxiliary protrusion.

[0009] As a preferred embodiment of this utility model, the stainless steel base is integrally formed from a stainless steel plate.

[0010] As a preferred embodiment of this utility model, the shape of the gel-like support portion is adapted to the size of the strap lifting foot auxiliary protrusion and the U-shaped support portion, and the gel-like support portion is sleeved on the top of the strap lifting foot auxiliary protrusion and the U-shaped support portion.

[0011] As a preferred embodiment of this utility model, the support part is detachably connected to the top of the stainless steel base via a quick-release mechanism. The quick-release mechanism includes a T-shaped groove formed on the top of the stainless steel base. Arc-shaped grooves are formed on both sides of one end of the T-shaped groove. A T-shaped strip is slidably connected inside the T-shaped groove. An elastic metal ball is installed at one end of the T-shaped strip. An arc-shaped plate is fixedly connected to the top of the T-shaped strip. The arc-shaped plate is fixedly connected to the bottom of the U-shaped support part.

[0012] As a preferred embodiment of this utility model, the stainless steel base is a two-section base, and the two sections are rotatably connected by a damping shaft.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model relates to a multi-module support and positioning frame for knee joint surgery. Four foot-operated protrusions of varying heights, arranged in a stepped pattern on a stainless steel base, can meet the fixation needs of the knee joint at different angles. This allows the patient's lower limb to switch between at least five stable positions, ensuring unrestricted leg movement and solving the problem of a single fixation method. The gel-like support on the surface of the foot-operated protrusions increases patient comfort and reduces the occurrence of local skin pressure injuries. The U-shaped support at the top center can elevate the knee joint when the lower limb is fully extended, reducing the overall height change in the surgical area, minimizing surgical discomfort, and optimizing ergonomic design.

[0015] This utility model relates to a multi-module support and positioning frame for knee joint surgery. The stainless steel base is integrally machined for easy sterilization. The strap holes on both sides facilitate fixing the support and positioning frame to the operating table. The hollowed-out grooves on both sides of the foot pedal protrusion and the strap-type foot lifting auxiliary protrusion on the top further enhance practicality and stability. It effectively solves the problems of material and sterilization of existing support frames, and improves surgical efficiency and safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side view of the present invention;

[0018] Figure 3This is a schematic diagram of the bottom structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of Embodiment 3 of this utility model.

[0021] In the diagram: 1. Stainless steel base; 2. Foot pedal protrusion; 21. Shaped support; 22. Hollowed-out groove; 23. Sleeve lifting foot auxiliary protrusion; 3. Gel-like support; 4. Strap hole; 5. Quick release mechanism; 51. T-slot; 52. Arc groove; 53. T-strip; 54. Metal ball bearing; 55. Arc plate; 6. Damping pivot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0023] Please see Figures 1-3 This utility model provides a multi-module support and positioning frame for knee joint surgery, including a stainless steel base 1. The stainless steel base 1 is provided with four foot pedal protrusions 2 to meet the fixation requirements of different angles of the knee joint. The multiple foot pedal protrusions 2 can switch between at least 5 stable positions for the patient's lower limbs, realizing unrestricted leg movement. The surface of the foot pedal protrusions 2 is provided with a gel-like support part 3 to increase patient comfort and reduce local pressure damage to the skin. At least two strap holes 4 are opened on both sides of the stainless steel base 1 for fixing the support and positioning frame to the operating table.

[0024] Specifically, in the knee joint surgery scenario, the first step is to use a strap to pass through the strap hole 4 to firmly fix the support positioning frame on the operating table, preventing the support positioning frame from shifting during the operation, providing stable and reliable positioning support for the patient's foot, and ensuring the accuracy of the surgical operation;

[0025] During the operation, after the support positioning frame is placed in a suitable position on the operating table, the patient's lower limb is placed on the foot pedal protrusion 2. By adjusting the contact position between the lower limb and different foot pedal protrusions 2, the lower limb can be in at least 5 stable positions to meet the fixation requirements of different angles of the knee joint during the operation, thereby realizing unrestricted movement of the leg during the operation, which makes it easier for the doctor to perform surgical operations from different angles.

[0026] Furthermore, during the surgery, the patient's lower limbs are in prolonged contact with the foot-operated protrusion 2. The gel-like support 3, with its soft properties, conforms to the skin of the lower limbs, effectively distributing pressure, reducing local skin pressure, increasing patient comfort, and lowering the risk of local skin pressure injury due to prolonged fixation. The strap holes 4 on both sides of the stainless steel base 1 are used in actual use.

[0027] In this embodiment, the multiple foot pedal protrusions 2 have different heights and are distributed in a stepped manner on the surface of the stainless steel base 1.

[0028] Specifically, during knee surgery, when the knee needs to be adjusted to a smaller angle, the patient's leg can be placed on the lower footrest protrusion 2, in a relatively extended state. Conversely, when the surgery requires a larger angle of knee flexion, the patient's leg can be placed on the higher footrest protrusion 2. This stepped distribution allows for natural and smooth angle adjustments when changing stable positions, eliminating the need for complex manipulations. This enables surgeons to quickly and accurately place the patient's leg on the appropriate height of the footrest protrusion 2 according to the specific surgical steps and the required knee joint exposure and manipulation angle, significantly improving the convenience and efficiency of the surgical procedure. Furthermore, the design of multiple footrest protrusions 2 conforms to the physiological structure of the human leg at different angles, allowing the patient to maintain a relatively comfortable posture during surgery and reducing discomfort caused by prolonged unnatural postures.

[0029] In this embodiment: when the patient's lower limbs are fully extended, the top center of the foot pedal protrusion 2 is provided with a U-shaped support 21 that can raise the knee joint.

[0030] Specifically, in knee surgery, when the patient's lower limb needs to be fully extended, such as during certain surgical procedures involving knee extension, like precise examinations of specific parts of the knee or specific implantation procedures, the patient's lower limb needs to remain fully extended. In this case, the unique shape of the U-shaped support 21 can well conform to the physiological curve below the knee joint, providing support from below and elevating the knee joint to a certain height. This reduces changes in the height of the surgical area, making the surgical operating space relatively stable. The surgeon does not need to frequently adjust the height of surgical instruments, reducing the difficulty and discomfort of the surgical procedure. At the same time, elevating the knee joint allows for better exposure of the surgical field, enabling the surgeon to observe the internal structures of the knee joint more clearly, facilitating delicate surgical operations, improving surgical precision, reducing the possibility of surgical errors, and thus improving the overall quality and effect of the surgery.

[0031] In this embodiment, multiple hollow grooves 22 are provided on both sides of the foot pedal protrusion 2.

[0032] Specifically, the multiple hollow slots 22 reduce the amount of material used in the foot pedal protrusion 2, thereby reducing the weight of the entire support and positioning frame. This makes it easier for medical staff to move and install the frame before surgery, improving work efficiency. In addition, in terms of heat dissipation, the patient's lower limbs will generate heat during the operation due to prolonged contact with the foot pedal protrusion 2. The hollow slots 22 increase the air circulation channels, which can promote heat dissipation, avoid local heat accumulation, and improve patient comfort.

[0033] In this embodiment: both sides of the top of the U-shaped support 21 are provided with a strap lifting foot auxiliary protrusion 23.

[0034] Specifically, during knee surgery, when it is necessary to fix and adjust the patient's leg, the doctor can fix one end of the bandage to the bandage's foot-lifting auxiliary protrusion 23, and then wrap it around the patient's leg for fixation. At the same time, the presence of the bandage's foot-lifting auxiliary protrusion 23 also facilitates the doctor's operation of raising or fine-tuning the patient's leg during the operation. When it is necessary to raise the leg, the doctor can easily raise the leg to a suitable height by pulling the bandage and using the support of the bandage's foot-lifting auxiliary protrusion 23. When it is necessary to fine-tune the leg angle, the doctor can also adjust the bandage and use the bandage's foot-lifting auxiliary protrusion 23 to achieve precise angle fine-tuning, thereby better meeting the precise requirements for the leg position and angle at different stages of the operation and improving the accuracy and stability of the surgical operation.

[0035] In this embodiment: the stainless steel base 1 is made of stainless steel plate integrally processed.

[0036] Specifically, during the surgical preparation phase, the one-piece molded stainless steel base 1 possesses high structural strength and stability, capable of bearing the weight of other components of the support positioning frame and the patient's legs. It is not prone to deformation or damage, ensuring the reliability of the entire support positioning frame during use. During the surgical procedure, the stainless steel material exhibits excellent corrosion resistance. The surgical environment may involve contact with various disinfectants, bodily fluids, and other substances. The stainless steel base 1 can effectively resist the corrosion of these substances, maintaining its stable performance and extending its service life. At the same time, the stainless steel material is easy to disinfect. Before and after each surgery, the stainless steel base 1 can be quickly and effectively disinfected using conventional disinfection methods, such as high-temperature disinfection and chemical disinfection, reducing bacterial growth and the risk of infection, thus providing a safe and reliable support platform for the surgery.

[0037] In this embodiment, the shape of the gel-like support 3 is adapted to the size of the strap lifting foot auxiliary protrusion 23 and the U-shaped support 21, and the gel-like support 3 is sleeved on the top of the strap lifting foot auxiliary protrusion 23 and the U-shaped support 21.

[0038] Specifically, when the patient's leg is placed on the foot-operated protrusion 2, the gel-like support part 3 is fitted onto the top of the leg-lifting auxiliary protrusion 23 and the U-shaped support part 21. Its shape is adapted to the size of the two and can fit closely. During the operation, the gel-like support part 3 is soft and elastic, providing cushioning and pressure relief for the part of the patient's leg that comes into contact with the leg-lifting auxiliary protrusion 23 and the U-shaped support part 21, reducing discomfort and local skin pressure caused by hard contact, and effectively preventing skin damage. When the doctor uses the leg-lifting auxiliary protrusion 23 to fix or adjust the leg, the presence of the gel-like support part 3 makes the friction between the leg-lifting auxiliary protrusion and the leg more uniform and the fixation effect more stable. It also avoids direct pressure on the skin from the leg-lifting auxiliary protrusion and allows the knee joint to remain more stable during the lifting process, further optimizing the support and fixation effect on the patient's leg during the operation. Example

[0039] Please see Figure 4 The technical feature that distinguishes this embodiment from embodiment 1 is that the gel-like support part 3 is detachably connected to the top of the stainless steel base 1 through a quick-release mechanism 5. The quick-release mechanism 5 includes a T-shaped groove 51 opened on the top of the stainless steel base 1. Arc-shaped grooves 52 are opened on both sides of one end of the T-shaped groove 51. A T-shaped strip 53 is slidably connected inside the T-shaped groove 51. An elastic metal ball 54 is installed at one end of the T-shaped strip 53. An arc-shaped plate 55 is fixedly connected to the top of the T-shaped strip 53. The arc-shaped plate 55 is fixedly connected to the bottom of the U-shaped support part 21.

[0040] Specifically, during the preoperative preparation stage, medical staff can determine whether it is necessary to replace or adjust the gel-like support 3 based on the type of surgery and individual patient differences. Of course, it can also be replaced with a cheaper sponge support. When replacement is needed, simply align the elastic metal ball 54 with the arc-shaped groove 52, press the T-shaped strip 53 firmly, and let the metal ball 54 slide along the arc-shaped groove 52 until it is released from the restricted area of ​​the T-shaped groove 51. At this point, the T-shaped strip 53, together with the connected arc-shaped plate 55, U-shaped support 21, and the gel-like support 3 or sponge support fitted on it, can be pulled out as a whole, and the disassembly can be completed quickly. When installing a new or replaced gel-like support 3 or sponge support, insert the T-shaped strip 53 into the T-shaped groove 51. The metal ball 54 will automatically lock into the corresponding arc-shaped groove 52 during the sliding process, forming a stable connection. This ensures that the gel-like support 3 will not easily loosen or shift during the operation. The quick-release mechanism 5 design greatly improves the convenience of replacing the gel-like support 3. It can quickly handle different surgical needs or situations where the support is damaged or needs cleaning and disinfection, saving surgical preparation time, improving surgical efficiency, and also facilitating the daily maintenance and management of the support positioning frame. Example

[0041] Please see Figure 5 The technical feature that distinguishes this embodiment from embodiment 1 is that the stainless steel base 1 is a two-section base, and the two sections are rotatably connected by a damping shaft 6.

[0042] Specifically, after surgery, medical staff need to store the support frame. This is where the damping hinge 6 comes in handy. Because the two sections of the base are connected by the hinge 6, medical staff can easily rotate and fold the two sections around it. The moderate resistance provided by the hinge 6 ensures smooth and controllable rotation, preventing damage from collisions caused by excessive rotation during folding, and also allows the base to be stably fixed when folded to the appropriate position. When the two sections are folded together, the previously large base area is significantly reduced, resulting in a substantial decrease in overall space occupied. Whether placed in a dedicated instrument cabinet or temporarily stored in a corner of the operating room, it saves space and facilitates storage and management. Compared to traditional one-piece base support frames, this two-section foldable design offers significant convenience in storage, effectively improving the space utilization of operating room instruments. It also facilitates the transport and turnover of the support frame between different operating rooms, reducing the workload of medical staff.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] 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 without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-module support positioning frame for knee surgery, characterized in that, The device includes a stainless steel base (1), which has four foot-operated protrusions (2) to meet the needs of fixing the knee joint at different angles. The multiple foot-operated protrusions (2) can switch between at least five stable positions for the patient's lower limbs, enabling unrestricted leg movement. The surface of the foot-operated protrusions (2) is provided with a gel-like support (3) to increase patient comfort and reduce local pressure damage to the skin. At least two strap holes (4) are provided on both sides of the stainless steel base (1) for fixing the support positioning frame to the operating table.

2. The multi-module support positioning frame for knee surgery of claim 1, wherein, The multiple foot pedal protrusions (2) have different heights and are distributed in a stepped manner on the surface of the stainless steel base (1).

3. The multi-module support positioning frame for knee surgery of claim 1, wherein, When the patient’s lower limbs are fully extended, the top center of the foot pedal protrusion (2) is provided with a U-shaped support (21) that can raise the knee joint.

4. The multi-module support positioning frame for knee surgery of claim 1, wherein, The foot pedal protrusion (2) has multiple hollowed-out grooves (22) on both sides.

5. The multi-module support and positioning frame for knee joint surgery according to claim 3, characterized in that, Both sides of the top of the U-shaped support (21) are provided with a strap lifting foot auxiliary protrusion (23).

6. The multi-module support and positioning frame for knee joint surgery according to claim 1, characterized in that, The stainless steel base (1) is made of stainless steel plate integrally processed.

7. The multi-module support and positioning frame for knee joint surgery according to claim 5, characterized in that, The shape of the gel-like support (3) is adapted to the size of the strap lifting foot auxiliary protrusion (23) and the U-shaped support (21), and the gel-like support (3) is sleeved on the top of the strap lifting foot auxiliary protrusion (23) and the U-shaped support (21).

8. The multi-module support and positioning frame for knee joint surgery according to claim 3, characterized in that, The support part (3) is detachably connected to the top of the stainless steel base (1) via a quick-release mechanism (5). The quick-release mechanism (5) includes a T-shaped groove (51) opened on the top of the stainless steel base (1). Arc grooves (52) are opened on both sides of one end of the T-shaped groove (51). A T-shaped strip (53) is slidably connected inside the T-shaped groove (51). A metal ball (54) with elasticity is installed at one end of the T-shaped strip (53). An arc plate (55) is fixedly connected to the top of the T-shaped strip (53). The arc plate (55) is fixedly connected to the bottom of the U-shaped support part (21).

9. A multi-module support and positioning frame for knee joint surgery according to claim 1, characterized in that, The stainless steel base (1) is a two-section base, and the two sections are rotatably connected by a damping shaft (6).

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