Auxiliary device for bone joint replacement operation

Abstract

The invention provides a bone joint replacement surgery auxiliary device which comprises a bottom plate, a main lifting part is arranged on the upper side of the bottom plate and comprises two symmetrically-arranged adjusting plates, the lower portions of the side faces of the two adjusting plates are movably arranged on the bottom plate, and the upper portions of the side faces of the two adjusting plates are rotationally connected through a mounting shaft; a mounting opening is formed in the top end of the adjusting plate, a telescopic rod is slidably arranged in the mounting opening, and a positioning piece used for adjusting and positioning the telescopic rod is arranged on the side face of the adjusting plate. According to the auxiliary device for the bone joint replacement surgery, when a patient is subjected to knee joint replacement, supporting and positioning are conducted through the auxiliary device, it is guaranteed that legs of the patient are stably placed in the surgery process, meanwhile, the auxiliary device can be used for adjusting and positioning the height of the legs of the patient, and medical staff can conveniently conduct surgical treatment on the patient; and the angle of the knee joint can be adjusted and positioned according to operation requirements, so that the auxiliary device is convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of joint treatment, and particularly to an auxiliary device for bone and joint replacement surgery. Background Art

[0002] Joint replacement surgery usually replaces worn and aged joints with artificially manufactured joints to relieve joint pain and eliminate joint diseases. Joint replacement surgery plays an important role in the treatment of bone and joints, especially the vulnerable knee joint. During knee replacement surgery, it is necessary to support and position the patient's lower limb to avoid the shaking of the patient's lower limb during the surgery, which may affect the progress of the surgery or even cause medical accidents. Currently, the patient's lower limb is often fixed to the operating table by straps. This method is not convenient for adjusting the height of the patient's lower limb and is not convenient for positioning the bending degree of the patient's leg according to the surgical treatment requirements, resulting in deficiencies during the joint replacement surgery.

[0003] The existing patent publication number CN 117257602 A discloses a joint surgery positioning and supporting device, including a support base, a multi-link mechanism, a driving mechanism, a first footrest member, and a second footrest member. The multi-link mechanism is arranged on the support base and at least includes a first floating rod and a second floating rod. The upper ends of the first floating rod and the second floating rod are pivotally connected; the driving mechanism is connected to the multi-link mechanism and is used to drive the multi-link mechanism to move so that the first floating rod and the second floating rod can float up and down and change the angle between them; the first footrest member is arranged on the first floating rod and can move with the first floating rod to support the thigh part of the patient; the second footrest member is arranged on the second floating rod and can move with the second floating rod to support the calf part of the patient. In the above solution, although it can be used for adjusting and fixing the knee joint angle, it is not conducive to adjusting the overall height of the patient's leg during use, resulting in deficiencies during use. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide an auxiliary device for bone and joint replacement surgery. When the patient undergoes knee replacement surgery, the auxiliary device is used for support and positioning to ensure the stable placement of the patient's leg during the surgery. At the same time, the auxiliary device can be used for adjusting and positioning the height of the patient's leg, which is convenient for medical staff to perform surgery on the patient, and can adjust and position the knee joint angle according to the surgical requirements, facilitating the use of the auxiliary device, and effectively solving the problems in the background art.

[0005] To achieve the above object, the present invention provides the following technical solution: An auxiliary device for joint replacement surgery, including a bottom plate, a total lifting member is provided on the upper side of the bottom plate. The total lifting member includes two symmetrically arranged adjusting plates. The lower parts of the sides of the two adjusting plates are movably arranged on the bottom plate, and the upper parts of the sides of the two adjusting plates are rotatably connected by a mounting shaft. An installation opening is provided at the top end of the adjusting plate. A telescopic rod is slidably arranged in the installation opening, and a positioning member for adjusting and positioning the telescopic rod is arranged on the side of the adjusting plate. One end of the telescopic rod away from the adjusting plate is rotatably provided with an arc-shaped plate.

[0006] As a preferred technical solution of the present invention, a drainage groove is provided on the inner side of the arc-shaped plate. A drainage pipe is fixed on the side of the arc-shaped plate and communicated with the drainage groove. A collection box is installed on the upper side of the bottom plate, and the drainage pipe is communicated with the inner cavity of the collection box.

[0007] As a preferred technical solution of the present invention, a positioning pipe communicated with its inner cavity is fixed on the upper part of the side of the collection box. The drainage pipe is clamped in the positioning pipe and communicated with the inner cavity of the collection box. An air extraction pump is installed on the top of the collection box. The air extraction end of the air extraction pump is communicated with the upper part of the inner cavity of the collection box, and the exhaust end of the air extraction pump is located outside the collection box.

[0008] As a preferred technical solution of the present invention, a limiting plate for positioning the collection box is fixed on the upper side of the bottom plate. An installation opening is provided on the side of the collection box, and a transparent plate is installed in the installation opening. Scale lines are provided on the transparent plate.

[0009] As a preferred technical solution of the present invention, a moving plate is rotatably installed at the lower part of the side of the adjusting plate, and the moving plate is slidably arranged on the upper side of the bottom plate. An adjusting member for adjusting and positioning the position of the moving plate is provided on the upper side of the bottom plate.

[0010] As a preferred technical solution of the present invention, a positioning seat is installed on the upper side of the bottom plate. The adjusting member includes an adjusting rod rotatably installed in the positioning seat. Threads are provided at both ends of the adjusting rod, and one end of the thread is a left-handed thread and the other end is a right-handed thread. A first threaded cylinder is fixed on the side of the moving plate, and the first threaded cylinder is rotatably connected to the adjusting rod through the thread. One end of the adjusting rod penetrates and extends to the outside of the positioning seat, and a handle is fixed at this end of the adjusting rod.

[0011] As a preferred technical solution of the present invention, a fixing plate is fixed on the side of the telescopic rod. The positioning member includes a positioning screw rod rotatably installed on the side of the fixing plate. A second threaded cylinder is fixed on the upper part of the side of the adjusting plate, and the second threaded cylinder is threadedly connected to the positioning screw rod. An adjusting knob is fixed at the end of the positioning screw rod.

[0012] As a preferred technical solution of the present invention, a mounting seat is fixed on the side of the arc-shaped plate, and the end of the telescopic rod is rotatably installed in the mounting seat.

[0013] As a preferred technical solution of the present invention, the end of the telescopic rod is rotatably connected to the mounting seat through a bolt, and a nut is threadedly connected to the bolt.

[0014] As a preferred technical solution of the present invention, fixing belts are fixed on both sides of the arc-shaped plate, and a detachable protective layer is arranged between the two arc-shaped plates.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. For the bone and joint replacement surgery auxiliary device of the present invention example, by setting the positioning member to drive the telescopic rod to move in the installation opening at the end of the adjusting plate, the length of a single adjusting plate is adjusted, which is convenient for medical staff to adjust the knee joint angle of the patient according to the surgical requirements.

[0016] 2. For the bone and joint replacement surgery auxiliary device of the present invention example, by rotating the adjusting rod through the handle, the two moving plates are driven to move synchronously by the threads with opposite spiral directions at both ends of the adjusting rod. When the two moving plates approach each other, the adjusting plate rotates and rises, increasing the supporting height of the auxiliary device for the patient's leg; when the two moving plates move away from each other, the adjusting plate rotates and lowers the supporting height of the auxiliary device for the patient's leg. During the process of adjusting the angle of the adjusting plate, it cooperates with the adjustment of the length of the adjusting plate, improving the flexibility of the present auxiliary device during use.

[0017] 3. For the bone and joint replacement surgery auxiliary device of the present invention example, during the patient's surgery, the medical staff turns on the air pump through the switch, and the air pump extracts the air in the collection box, making the inside of the collection box in a negative pressure state, which is convenient for the collection box to extract the body fluid in the drainage groove through the drainage tube, facilitating the collection and treatment of the body fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is Figure 1 an enlarged structural diagram of part A in Figure 3 is a front view structural diagram of the present invention; Figure 4 is a schematic structural diagram of the present invention after removing the arc-shaped plate; Figure 5 is Figure 4 an enlarged structural diagram of part B in Figure 6 is a schematic structural diagram of the collection box in the present invention.

[0019] In the figure: 1 bottom plate, 2 adjusting plate, 3 moving plate, 4 positioning seat, 5 adjusting rod, 6 first threaded cylinder, 7 handle, 8 telescopic rod, 9 fixing plate, 10 positioning screw, 11 second threaded cylinder, 12 adjusting knob, 13 arc plate, 14 fixing belt, 15 drainage groove, 16 drainage pipe, 17 collection box, 18 positioning pipe, 19 air extraction pump, 20 transparent plate, 21 limiting plate, 22 mounting seat, 23 bolt, 24 nut, 25 protective layer. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-6 , the present invention provides a technical solution: an auxiliary device for bone and joint replacement surgery, including a bottom plate 1. A total lifting member is arranged on the upper side of the bottom plate 1. The total lifting member is used for adjusting the height of the patient's leg erection, which is convenient for medical staff to perform knee joint replacement surgery. The total lifting member includes two groups of symmetrically arranged adjusting plates 2. The lower parts of the sides of the two groups of adjusting plates 2 are movably arranged on the bottom plate 1, and the upper parts of the sides of the two groups of adjusting plates 2 are rotatably connected through a mounting shaft. By adjusting the distance between the lower parts of the sides of the two groups of adjusting plates 2, the adjusting plates 2 are rotated to realize the adjustment of the overall height of the auxiliary device.

[0022] An installation opening is provided at the top end of the adjusting plate 2. A telescopic rod 8 is slidably arranged in the installation opening, and a positioning member for adjusting and positioning the telescopic rod 8 is arranged on the side of the adjusting plate 2. By driving the telescopic rod 8 to move in the installation opening at the end of the adjusting plate 2 through the arranged positioning member, the length of a single adjusting plate 2 is adjusted, which is convenient for medical staff to adjust the angle of the patient's knee joint according to the surgical requirements; one end of the telescopic rod 8 away from the adjusting plate 2 is rotatably provided with an arc plate 13. The arc plate 13 is used for the support and positioning of the patient's leg. It should be noted that there are two arc plates 13, and the two arc plates 13 are respectively used for the support and positioning of the patient's thigh and calf. By adjusting the total lifting member, the height of the patient's leg erection can be adjusted, and by adjusting the length of the adjusting plate 2, the bending angle of the patient's knee joint can be adjusted, and the auxiliary device can be flexibly adjusted and used according to the surgical requirements.

[0023] A drainage groove 15 is provided inside the arc-shaped plate 13, and a drainage pipe 16 communicating with the drainage groove 15 is fixed on the side of the arc-shaped plate 13. A collection box 17 is installed on the upper side of the bottom plate 1, and the drainage pipe 16 communicates with the inner cavity of the collection box 17. During the process of joint replacement surgery on the patient, the drainage groove 15 is used for the directional drainage of the patient's body fluids, such as body fluids like blood and effusion. When the body fluids entering the drainage groove 15 flow through the drainage pipe 16, they enter the collection box 17 through the drainage pipe 16 and are collected and stored by the collection box 17, reducing the pollution received by the operating table.

[0024] A positioning pipe 18 communicating with its inner cavity is fixed on the upper part of the side of the collection box 17. The drainage pipe 16 is clamped in the positioning pipe 18 and communicates with the inner cavity of the collection box 17. The setting of the positioning pipe 18 facilitates the connection and disassembly of the drainage pipe 16 and the collection box 17. An air extraction pump 19 is installed on the top of the collection box 17. The air extraction end of the air extraction pump 19 communicates with the upper part of the inner cavity of the collection box 17, and the exhaust end of the air extraction pump 19 is located outside the collection box 17. The operation and power of the air extraction pump 19 are controlled by a set switch, and at the same time, an external power supply device supplies power for the operation of the air extraction pump 19. During the patient's operation, the medical staff turns on the air extraction pump 19 through the switch, and the air extraction pump 19 extracts the air in the collection box 17, making the inside of the collection box 17 in a negative pressure state, facilitating the collection box 17 to extract the body fluids in the drainage groove 15 through the drainage pipe 16 and facilitating the collection and treatment of the body fluids.

[0025] A limiting plate 21 for positioning the collection box 17 is fixed on the upper side of the bottom plate 1. There are two groups of limiting plates 21, and the collection box 17 is arranged between the two groups of limiting plates 21. The two groups of limiting plates 21 clamp and position the collection box 17, improving the stability of the collection box 17 arranged on the bottom plate 1. An installation opening is provided on the side of the collection box 17, and a transparent plate 20 is installed in the installation opening. Scale lines are provided on the transparent plate 20. The transparent plate 20 includes but is not limited to a glass plate or a plastic plate. The provided transparent plate 20 facilitates observing the amount of body fluids collected in the collection box 17 and facilitates the medical staff to clean or replace the collection box 17 in a timely manner.

[0026] A moving plate 3 is rotatably installed on the lower part of the side of the adjusting plate 2, and the moving plate 3 is slidably arranged on the upper side of the bottom plate 1. An adjusting member for adjusting and positioning the position of the moving plate 3 is provided on the upper side of the bottom plate 1. The position of the moving plate 3 is adjusted and positioned through the provided adjusting member. When the moving plate 3 moves, it drives the adjusting plate 2 to rotate, facilitating the adjustment of the overall erection height of this auxiliary device.

[0027] A positioning seat 4 is installed on the upper side of the bottom plate 1. The adjusting member includes an adjusting rod 5 rotatably installed in the positioning seat 4. Threads are provided at both ends of the adjusting rod 5, with a left-handed thread at one end and a right-handed thread at the other end. A first threaded cylinder 6 is fixed to the side of the moving plate 3. The first threaded cylinder 6 is rotationally connected to the adjusting rod 5 by threads. One end of the adjusting rod 5 passes through and extends outside the positioning seat 4, and a handle 7 is fixed to this end of the adjusting rod 5. By rotating the adjusting rod 5 with the handle 7, the two moving plates 3 are driven to move synchronously by the threads with opposite spiral directions at both ends of the adjusting rod 5. When the two moving plates 3 approach each other, the adjusting plate 2 rotates and rises, increasing the support height of this auxiliary device for the patient's leg; when the two moving plates 3 move away from each other, the adjusting plate 2 rotates and lowers the support height of this auxiliary device for the patient's leg. During the process of adjusting the angle of the adjusting plate 2, it is coordinated with the adjustment of the length of the adjusting plate 2, improving the flexibility of this auxiliary device during use.

[0028] A fixing plate 9 is fixed to the side of the telescopic rod 8. The positioning member includes a positioning screw 10 rotatably installed on the side of the fixing plate 9. A second threaded cylinder 11 is fixed to the upper part of the side of the adjusting plate 2. The second threaded cylinder 11 is threadedly connected to the positioning screw 10. An adjusting knob 12 is fixed to the end of the positioning screw 10. By rotating the positioning screw 10 with the adjusting knob 12 to move within the second threaded cylinder 11, the telescopic rod 8 is driven by the positioning screw 10, facilitating the adjustment of the length of the adjusting plate 2. The length of the adjusting plate 2 can be adjusted according to the surgical treatment requirements, facilitating the adjustment of the knee joint angle.

[0029] A mounting seat 22 is fixed to the side of the arc-shaped plate 13. The end of the telescopic rod 8 is rotatably installed in the mounting seat 22. The end of the telescopic rod 8 is rotationally connected to the mounting seat 22 by a bolt 23. A nut 24 is threadedly connected to the bolt 23. By setting the bolt 23 and the nut 24, the angle of the arc-shaped plate 13 is adjusted and positioned, facilitating the support and positioning of the patient's leg during the patient's joint replacement process.

[0030] Fixing straps 14 are fixed to both sides of the arc-shaped plate 13. The patient's leg is fixed to the arc-shaped plate 13 by the provided fixing straps 14, preventing the patient's leg from detaching from the arc-shaped plate 13 and causing the arc-shaped plate 13 to fail to play an effective positioning and supporting role. A detachable protective layer 25 is provided between the two arc-shaped plates 13. The protective layer 25 is used for protection during the operation, preventing the patient's body fluids or tissues from falling into this auxiliary device and increasing the cleaning difficulty.

[0031] For this auxiliary device, during the patient's knee joint replacement surgery, it is used for support and positioning through this auxiliary device, ensuring the stable placement of the patient's leg during the operation. At the same time, this auxiliary device can be used for the adjustment and positioning of the patient's leg height, facilitating the medical staff to perform surgical treatment on the patient, and can adjust and position the knee joint angle according to the surgical requirements, facilitating the use of this auxiliary device.

[0032] The un-disclosed parts in the present invention are all prior arts, and their specific structures, materials and working principles will not be elaborated herein. Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bone joint replacement surgery auxiliary device, comprising a base plate (1), characterized in that: A total lifting component is arranged on the upper side of the bottom plate (1), and the total lifting component comprises two groups of symmetrically arranged adjustment plates (2). The lower side portions of the two groups of adjustment plates (2) are movably arranged on the bottom plate (1), and the upper side portions of the two groups of adjustment plates (2) are rotatably connected via a mounting shaft. A mounting opening is provided at the top of the adjustment plate (2), and a telescopic rod (8) is slidably arranged in the mounting opening. A positioning component for adjusting and positioning the telescopic rod (8) is arranged on the side of the adjustment plate (2), and an arc plate (13) is rotatably arranged at one end of the telescopic rod (8) away from the adjustment plate (2).

2. The bone joint replacement surgery auxiliary device according to claim 1, characterized in that: A drainage groove (15) is provided on the inner side of the arc-shaped plate (13); a drainage tube (16) connected to the drainage groove (15) is fixed on the side of the arc-shaped plate (13); a collection box (17) is installed on the upper side of the bottom plate (1); and the drainage tube (16) is connected to the inner cavity of the collection box (17).

3. The bone joint replacement surgery auxiliary device according to claim 2, characterized in that: A positioning tube (18) connected to the inner cavity of the collecting box (17) is fixed to the upper side of the collecting box (17); the drainage tube (16) is clamped in the positioning tube (18) and connected to the inner cavity of the collecting box (17); an air pump (19) is installed on the top of the collecting box (17); the air suction end of the air pump (19) is connected to the upper inner cavity of the collecting box (17); and the exhaust end of the air pump (19) is located outside the collecting box (17).

4. The bone joint replacement surgery auxiliary device according to claim 2, characterized in that: A limiting plate (21) for positioning the collection box (17) is fixed on the upper side of the bottom plate (1), a mounting opening is provided on the side of the collection box (17), a transparent plate (20) is installed in the mounting opening, and scale lines are provided on the transparent plate (20).

5. The bone joint replacement surgery auxiliary device according to claim 1, characterized in that: A movable plate (3) is rotatably mounted on the lower part of the side of the adjustment plate (2), and the movable plate (3) is slidably arranged on the upper side of the bottom plate (1). An adjustment member for adjusting the position of the movable plate (3) is arranged on the upper side of the bottom plate (1).

6. The bone joint replacement surgery auxiliary device according to claim 5, characterized in that: A positioning seat (4) is mounted on the upper side of the bottom plate (1); the adjusting member comprises an adjusting rod (5) rotatably mounted in the positioning seat (4); both ends of the adjusting rod (5) are provided with threads, one end of the thread is a left-handed thread, and the other end of the thread is a right-handed thread; a first threaded cylinder (6) is fixed to the side of the movable plate (3); the first threaded cylinder (6) is rotatably connected to the adjusting rod (5) through a thread; one end of the adjusting rod (5) penetrates and extends to the outside of the positioning seat (4), and a handle (7) is fixed to the end of the adjusting rod (5).

7. The bone joint replacement surgery auxiliary device according to claim 1, characterized in that: A fixing plate (9) is fixed to the side of the telescopic rod (8); the positioning member comprises a positioning screw (10) rotatably mounted on the side of the fixing plate (9); a second threaded cylinder (11) is fixed to the upper part of the side of the adjustment plate (2); the second threaded cylinder (11) is threadedly connected to the positioning screw (10); and an adjustment knob (12) is fixed to the end of the positioning screw (10).

8. The bone joint replacement surgery auxiliary device according to claim 1, characterized in that: A mounting seat (22) is fixed to the side of the arc-shaped plate (13), and the end of the telescopic rod (8) is rotatably mounted in the mounting seat (22).

9. The bone joint replacement surgery auxiliary device according to claim 8, characterized in that: The end of the telescopic rod (8) is rotatably connected to the mounting seat (22) via a bolt (23), and a nut (24) is threadedly connected to the bolt (23).

10. The bone joint replacement surgery auxiliary device according to claim 1, characterized in that: Fixing belts (14) are fixed on both sides of the arc-shaped plate (13), and a detachable protective layer (25) is provided between the two arc-shaped plates (13).

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