Lower limb support for robot-assisted joint replacement

Abstract

The utility model relates to the technical field of lower limb supports, in particular to a lower limb support for robot auxiliary joint replacement, which comprises a base, one end of the base is fixedly provided with the lower limb support, the lower limb support at least comprises a first fixing plate and a pedal, the first fixing plate is provided with a thigh fixing part, and a ball is rotatably embedded in the thigh fixing part. When the thigh of a patient slightly moves in the operation process, the balls can roll along with the thigh, friction between the thigh and the fixing part is reduced, pressure can be dispersed through rolling of the balls, and continuous compression of the thigh fixing part on a certain part of the thigh of the patient is avoided; air is allowed to freely circulate in the fixing part, accumulation of leg sweat is reduced, the ankle fixing part is fixedly arranged on the pedal, the section of the ankle fixing part is similar to the shape of the tail of the foot sole of the human body, the ankle fixing part can be tightly attached to the ankle of a patient, stable supporting is provided, and movement of the ankle in the operation process is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lower limb support technology, and in particular to a lower limb support for robot-assisted joint replacement. Background Technology

[0002] Joint replacement surgery is one of the main methods for treating joint diseases such as severe osteoarthritis. With the increasing aging of the population and the improvement of people's living standards, the demand for joint replacement surgery is constantly increasing. Traditional joint replacement surgery relies on the doctor's clinical experience and technical level, making it difficult to ensure the accuracy and personalization of the surgery.

[0003] With the continuous advancement of medical technology, robot-assisted surgery is increasingly widely used in the field of orthopedics. Especially in joint replacement surgery, lower limb braces play a crucial role. They are primarily used to support the patient's lower limbs, ensuring stability and accuracy during the surgical procedure.

[0004] Lower limb braces, due to insufficient stability and low comfort in fixing the patient's legs, can lead to problems affecting surgical outcomes and skin damage. Therefore, we provide lower limb braces for robot-assisted joint replacement. Summary of the Invention

[0005] The main purpose of this invention is to provide a lower limb support for robot-assisted joint replacement, in order to solve the problems of insufficient stability and low comfort of the lower limb support proposed in related technologies, which can affect the surgical outcome and damage the patient's skin.

[0006] To achieve the above objectives, according to one aspect of the present invention, a lower limb support for robot-assisted joint replacement is provided, including an operating table. A base is fixedly connected to the operating table, and a lower limb support is fixedly disposed at one end of the base. The lower limb support includes at least a first fixing plate and a pedal. A thigh fixing part is disposed on the first fixing plate. The thigh fixing part includes a first fixing block and a second fixing block. The first fixing block is inserted and fixedly disposed on one side of the second fixing block, and a ball bearing is rotatably disposed embedded in the thigh fixing part. A plurality of through holes for ventilation are opened through the thigh fixing part, and an ankle fixing part is fixedly disposed on the pedal.

[0007] Furthermore, a connecting plate is hinged to one end of the first fixing plate, and one end of the connecting plate is inserted and fixedly mounted on one end of the base, and a wristband is fixedly mounted on the base.

[0008] Furthermore, a second fixing plate is hinged to the other end of the first fixing plate, and a lower leg fixing part is provided on the second fixing plate. The pedal is hinged to the other end of the second fixing plate.

[0009] Furthermore, a first support block is fixedly installed at the center of the outer wall of the second fixing block, a slider is fixedly installed at the bottom of the first support block, inserts are fixedly installed at both the upper and lower ends of the second fixing block, and a connecting strap is also fixedly installed on the second fixing block.

[0010] Furthermore, a second support block is fixedly installed at the center of the outer wall of the first fixing block. Slots are provided at both the upper and lower ends of the first fixing block. The insert block is inserted into the slots. A D-ring buckle is fixedly installed on the second support block. The connecting strap is connected to the D-ring buckle.

[0011] Furthermore, a first groove is provided on the first fixing plate, and the slider is slidably installed in the first groove. Similarly, a second groove is provided on the second fixing plate, and the lower leg fixing part is slidably installed in the second groove.

[0012] Furthermore, an elastic band for securing the instep is fixedly connected to the ankle fixing part.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the lower limb support for robot-assisted joint replacement, a ball bearing is embedded in the thigh fixation part. When the patient's thigh moves slightly during the operation, the ball bearing can roll accordingly, effectively reducing the friction between the thigh and the fixation part. The rolling of the ball bearing can also distribute pressure, avoiding continuous pressure on a certain part of the patient's thigh by the thigh fixation part. The through hole on the thigh fixation part allows air to circulate freely inside the fixation part, effectively solving the problem of leg stuffiness caused by long-term surgery and reducing the accumulation of sweat on the legs.

[0015] 2. The lower limb support for robot-assisted joint replacement is equipped with an ankle fixation part. Its cross-section is similar to the shape of the tail of the human foot, which can closely fit the patient's ankle and provide stable support, reducing ankle movement during surgery and thus reducing the risk of complications caused by movement. Attached image description:

[0016] Figure 1 This is a schematic diagram of the overall structure of the lower limb support in a preferred embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of the thigh fixing part in a preferred embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the overall structure of the second fixing block in a preferred embodiment of the present invention;

[0019] Figure 4This is a schematic diagram of the overall structure of the first fixing block in a preferred embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the overall structure of the ankle fixation part in a preferred embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the planar structure of the ankle fixation part in a preferred embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of the overall structure of the lower limb support in a preferred embodiment of the present invention.

[0023] Illustration:

[0024] 1. Operating table;

[0025] 2. Base; 21. Wristband;

[0026] 3. Lower limb support; 31. Connecting plate; 32. First fixing plate; 321. First sliding groove; 33. Second fixing plate; 331. Second sliding groove; 34. Pedal;

[0027] 4. Thigh fixing part; 41. First fixing block; 411. Second support block; 412. Slot; 413. D-ring buckle; 42. Second fixing block; 421. First support block; 422. Slider; 423. Insert block; 424. Connecting strap; 43. Ball bearing; 44. Through hole;

[0028] 5. Lower leg fixation area;

[0029] 6. Ankle fixation part; 61. Elastic band. Detailed Implementation

[0030] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0031] Please see Figures 1-7 As shown, the purpose of this embodiment is to provide a lower limb support for robot-assisted joint replacement, including an operating table 1. A base 2 is fixedly connected to the operating table 1. A lower limb support 3 is fixedly installed at one end of the base 2. The lower limb support 3 includes at least a first fixing plate 32 and a pedal 34. A thigh fixing part 4 is provided on the first fixing plate 32. The thigh fixing part 4 includes a first fixing block 41 and a second fixing block 42. The first fixing block 41 is inserted and fixedly installed on one side of the second fixing block 42. A ball bearing 43 is rotatably embedded in the thigh fixing part 4. A plurality of through holes 44 for ventilation are opened through the thigh fixing part 4. An ankle fixing part 6 is fixedly installed on the pedal 34.

[0032] A connecting plate 31 is hinged to one end of the first fixing plate 32. One end of the connecting plate 31 is inserted and fixedly mounted on one end of the base 2, and a screw is threaded through the connecting plate 31 and the base 2. A limiting block is also provided on the operating table 1 to support the connecting plate 31. A wristband 21 is fixedly mounted on the base 2. During the operation, the patient's hands are placed on both sides of the body. The wristband 21 can ensure that the patient's hands will not move at will, thereby avoiding interference with the operation or causing unnecessary injury.

[0033] A second fixing plate 33 is hinged to the other end of the first fixing plate 32. A lower leg fixing part 5 is provided on the second fixing plate 33. The pedal 34 is hinged to the other end of the second fixing plate 33. The hinged setting can adjust the tilt angle of each part to meet the needs of patients with different body types and surgical requirements. In particular, the hinged setting of the pedal 34 allows doctors to adjust the tilt angle of the pedal 34 according to the specific situation of the patient, so as to ensure that the patient is in the most comfortable state during the operation. Moreover, the edges of the fixing plates and the pedal 34 at each hinge point are designed with rounded corners, which reduces the discomfort or risk of injury that may occur when the patient comes into contact with these edges during the operation.

[0034] A first support block 421 is fixedly installed at the center of the outer wall of the second fixing block 42. A slider 422 is fixedly installed at the bottom of the first support block 421. Insert blocks 423 are fixedly installed at both the upper and lower ends of the second fixing block 42. A connecting strap 424 is also fixedly installed on the second fixing block 42.

[0035] A second support block 411 is fixedly installed at the center of the outer wall of the first fixing block 41. Slots 412 are provided at both the upper and lower ends of the first fixing block 41. The insert block 423 is inserted into the slot 412. A D-ring buckle 413 is fixedly installed on the second support block 411. The connecting strap 424 is connected to the D-ring buckle 413, thereby achieving tight fixation of the thigh.

[0036] The inner wall of the thigh fixation part 4 is made of elastic material, which has good elasticity and resilience, and can closely fit the thigh shape of different patients, providing uniform support. The first support block 421 and the second support block 411 can prevent the thigh fixation part 4 from tilting to the sides when fixing the patient's thigh. The diameter of the thigh fixation part 4 gradually decreases from one end to the other. As the diameter gradually decreases, the thigh fixation part 4 can fit more closely to the patient's thigh, reducing gaps and shaking, thereby improving the stability of the operation and the patient's comfort.

[0037] The thigh fixation unit 4 is embedded with rotating ball bearings 43, which form a dynamic support layer between the patient's thigh and the fixation unit. When the patient's thigh moves slightly during surgery, the ball bearings 43 roll accordingly, effectively reducing friction between the thigh and the fixation unit, thereby reducing patient discomfort. The rolling of the ball bearings 43 also helps to distribute pressure, preventing continuous pressure on any part of the patient's thigh by the thigh fixation unit 4, which helps prevent pressure sores and skin damage. Furthermore, a through-hole 44 is provided through the thigh fixation unit 4, allowing air to circulate freely inside, effectively solving the problem of leg stuffiness caused by prolonged surgery, and also helping to reduce the accumulation of sweat on the legs, keeping the inside of the thigh fixation unit 4 dry and clean, further improving patient comfort.

[0038] The first fixing plate 32 has a first sliding groove 321, and the slider 422 is slidably installed in the first sliding groove 321. Similarly, the second fixing plate 33 has a second sliding groove 331, and the lower leg fixing part 5 is slidably installed in the second sliding groove 331. During joint replacement surgery, the base 2 is first installed on the operating table 1, and then the lower limb support 3 is installed at one end of the base 2. The patient first places his leg on the first fixing block 41, and then slides the second fixing block 42 so that the insert 423 on it engages with the slot 412 on the first fixing block 41. Then, one end of the connecting strap 424 is fixedly connected to the D-ring buckle 413 to facilitate the fixation of the patient's leg and reduce the movement of the patient's leg.

[0039] The cross-section of the ankle fixation part 6 is similar to the shape of the bottom of the human foot, which can fit closely to the patient's ankle and provide stable support. The inner wall of the ankle fixation part 6 is elastic and can adapt to different patients' ankle sizes and shapes. An elastic band 61 for fixing the instep is fixedly connected to the ankle fixation part 6.

[0040] All outer surfaces of the lower limb support 3 are coated with an antibacterial self-cleaning coating to reduce the adhesion of bacteria and viruses. This coating can continue to function during daily use, reducing the risk of cross-infection. The thigh fixation part 4, the lower leg fixation part 5, and the ankle fixation part 6 are all coated with an anti-fouling coating to prevent contaminants such as blood and body fluids from adhering to the surface, making it easy to clean and disinfect. With the combined effect of the antibacterial self-cleaning coating and the anti-fouling coating, the hygienic performance of the lower limb support 3 and its fixation parts is significantly improved, which not only helps to reduce the risk of cross-infection, but also improves the safety of surgery and the comfort of patients.

[0041] In practical use, the base 2 is fixedly installed on the operating table 1, and the lower limb support 3 is installed at one end of the base 2. It is fixed on the base 2 by the insertion of the connecting plate 31 and the screws. The tilt angle of the first fixing plate 32 and the second fixing plate 33 is adjusted to meet the patient's body shape and surgical needs. The patient lies on the operating table 1 with his / her hands placed on both sides of his / her body and his / her wrists put into the wrist sleeve 21. The patient's legs are placed on the second fixing block 42. The second fixing block 42 is slid so that the insert 423 on it is inserted into the slot 412. The connecting strap 424 is used to fix it to the thigh fixing part 4 through the D-ring buckle 413. Similarly, the patient's lower leg is fixed to the lower leg fixing part 5, and the patient's ankle is placed in the ankle fixing part 6. The instep is fixed with the elastic band 61.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A lower limb support for robot-assisted joint replacement, comprising an operating table (1), wherein a base (2) is fixedly connected to the operating table (1), and a lower limb support (3) is fixedly disposed at one end of the base (2), characterized in that, The lower limb support (3) includes at least a first fixing plate (32) and a foot pedal (34). The first fixing plate (32) is provided with a thigh fixing part (4). The thigh fixing part (4) includes a first fixing block (41) and a second fixing block (42). The first fixing block (41) is inserted and fixedly disposed on one side of the second fixing block (42). A ball bearing (43) is embedded and rotatably disposed in the thigh fixing part (4). A plurality of through holes (44) for ventilation are opened through the thigh fixing part (4). An ankle fixing part (6) is fixedly disposed on the foot pedal (34).

2. The robotically-assisted lower extremity support for joint replacement according to claim 1, characterized by, The first fixing plate (32) is hinged to a connecting plate (31) at one end, and the connecting plate (31) is inserted and fixedly installed at one end of the base (2), and a wrist sleeve (21) is fixedly installed on the base (2).

3. The robotically-assisted lower extremity support for joint replacement according to claim 1, characterized by, A second fixing plate (33) is hinged to the other end of the first fixing plate (32), and a lower leg fixing part (5) is provided on the second fixing plate (33). The pedal (34) is hinged to the other end of the second fixing plate (33).

4. The robotically-assisted lower extremity support for joint replacement according to claim 3, characterized by, A first support block (421) is fixedly installed at the center of the outer wall of the second fixing block (42). A slider (422) is fixedly installed at the bottom of the first support block (421). Insert blocks (423) are fixedly installed at both the upper and lower ends of the second fixing block (42). A connecting strap (424) is also fixedly installed on the second fixing block (42).

5. The robotically-assisted lower extremity support for joint replacement according to claim 4, characterized by, A second support block (411) is fixedly installed at the center of the outer wall of the first fixing block (41). Slots (412) are provided at both the upper and lower ends of the first fixing block (41). The insert block (423) is inserted into the slot (412). A D-ring buckle (413) is fixedly installed on the second support block (411). The connecting strap (424) is connected to the D-ring buckle (413).

6. The robotically-assisted lower extremity support for joint replacement according to claim 4, characterized by, The first fixing plate (32) has a first sliding groove (321) and the slider (422) is slidably installed in the first sliding groove (321). Similarly, the second fixing plate (33) has a second sliding groove (331) and the lower leg fixing part (5) is slidably installed in the second sliding groove (331).

7. The robotically-assisted lower extremity support for joint replacement according to claim 1, characterized by, An elastic band (61) for fixing the instep is fixedly connected to the ankle fixing part (6).

Images