Knee joint replacement operation position adjustable device

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a knee joint replacement operation position adjustable device which comprises a base, moving wheels and a fixing rod are arranged on the base, an adjusting rod is arranged at the outer end of the fixing rod in a sleeved mode, a through hole is formed in the adjusting rod, and a second fastening bolt penetrates through the through hole to be connected with the fixing rod in a screwed mode. The top end of the adjusting rod is connected with a clamping groove formed in the top seat in a clamped mode, the top seat is further provided with a screw hole and a moving groove, a third fastening bolt is connected with the screw hole in a screwed mode, a screw rod is horizontally arranged in the moving groove, one end of the screw rod penetrates through the moving seat to be connected with a rotating handle, and threads of the inner wall of the moving seat are matched with threads of the outer wall of the screw rod. A supporting seat is rotationally connected to the moving seat, an adjusting plate is inserted into the top seat and connected with a baffle, the affected limb of a patient can be fixed through the device, the labor intensity of medical workers can be reduced, and the stability of body position keeping can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a position-adjustable device for knee replacement surgery. Background Art

[0002] Knee replacement surgery has been widely recognized for its effectiveness in treating knee joint diseases caused by various reasons. By removing damaged bone tissue and installing artificial joint prostheses, it can effectively restore the stability of the lower limb joints, thereby achieving the purpose of restoring the function of the affected limb. At present, during knee replacement surgery, the patient's affected limb knee joint needs to be flexed. This process is performed by medical staff manually assisting in fixing the patient's leg position. However, due to the long operation time and high labor intensity, manual fatigue is easily caused, and unstable fixation of the affected limb may cause osteotomy deviation and even lead to surgical failure, affecting the postoperative efficacy of the affected limb. Utility Model Content

[0003] In view of the above problems, the purpose of the present invention is to provide a position-adjustable device for knee replacement surgery to solve the problems raised in the above background technology.

[0004] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod.

[0005] The beneficial effects of the utility model are: the patient's affected limb can be fixed by the device, which can effectively reduce the labor intensity of medical staff and ensure the stability of the patient's affected limb position.

[0006] In order to facilitate the displacement conversion of this device and the installation and fixation of the adjustment rod:

[0007] As a further improvement of the above technical solution: the moving wheels are arranged at the four corners of the bottom end of the base, and the fixing rods are vertically arranged at the front and rear parts of the top end of the base, and each moving wheel is provided with a brake block.

[0008] The beneficial effects of this improvement are: the establishment of the moving wheel can facilitate the displacement conversion of the device, and the establishment of the brake block on the moving wheel can limit the movement of the moving wheel when it is stagnant. The establishment of the fixing rod can facilitate the installation and fixation of the adjustment rod.

[0009] In order to facilitate the adjustment and fixation of the top seat height:

[0010] As a further improvement of the above technical solution: a number of through holes are vertically and equidistantly opened in the middle of one side of the adjusting rod, and a fixing plate is horizontally arranged on the upper part of the other side, and a fastening bolt vertically penetrates the fixing plate and is connected to the splint located above the fixing plate, and anti-slip rubber pads are provided on the top end of the splint and the bottom end of the top seat.

[0011] The beneficial effect of this improvement is that by externally screwing the fastening bolt 2 to separate it from the fixing rod and the adjusting rod, the adjusting rod can be moved up and down so that the top seat can be adjusted to a suitable height for use according to the height of the operating bed. When the adjustment is completed, it is only necessary to penetrate the through hole at the current position and screw the fastening bolt 2 inwardly into the screw hole of the fixing rod to fix the position of the adjusting rod. After the top seat is located on the operating bed surface, it is only necessary to rotate the fastening bolt 1 to drive the splint upward, which can cooperate with the top seat to clamp the side end of the operating bed, thereby further fixing the device. By setting up the anti-slip rubber pad, the friction coefficient can be increased, thereby enhancing the stability of the clamping and the top seat during use.

[0012] In order to facilitate the installation and fixing of the top seat:

[0013] As a further improvement of the above technical solution: the four corners near the edge of the top seat are all provided with slots that are compatible with the top protrusions of the adjusting rod.

[0014] The beneficial effect of this improvement is: by inserting the top protrusion of the adjusting rod into the slot in the corresponding direction according to the patient's affected limb, the fastening bolt is used to screw into the screw hole of the adjusting rod through the screw hole of the top seat, thereby completing the installation and fixing operation of the top seat.

[0015] In order to facilitate the adjustment and fixation of the spacing between the baffles on both sides:

[0016] As a further improvement of the above technical solution: the movable groove is located in the middle of the top seat, baffles are inserted on both sides of the rear middle of the movable groove, and the outer ends of the baffles on both sides are connected to vertically arranged baffles, and fastening bolts five are screwed on the top seat above the baffles on both sides.

[0017] The beneficial effect of this improvement is that by rotating the fastening bolt 5, the adjustment plate can be moved inward and outward to adjust and fix the use distance between the baffles on both sides.

[0018] To increase the comfort of clamping the patient's thighs:

[0019] As a further improvement of the above technical solution: a second protective pad is provided on the inner side of the baffle, and the second protective pad is soft and elastic.

[0020] The beneficial effects of this improvement are: by setting up the baffle, the patient's thighs can be blocked and limited on both sides to prevent them from tilting left and right and affecting the stability of the affected limb. By setting up the second protective pad on the inside of the baffle, the comfort of the baffle when clamping and blocking the patient's thighs can be increased.

[0021] To support the patient's foot and lower leg when the patient's knee is flexed:

[0022] As a further improvement of the above technical solution: the support seat is located at the top of the movable seat, and the shape of the support seat is L-shaped.

[0023] The beneficial effect of this improvement is that by setting up the support seat, the patient's foot and calf can be supported when the knee joint of the patient's affected limb is flexed. When the fastening bolt 4 is rotated, the use angle of the support seat can be adjusted and fixed according to the flexion angle of the knee joint.

[0024] To increase the comfort and stability of the patient's foot and lower leg support:

[0025] As a further improvement of the above technical solution: a protective pad and a fixing belt are provided on the top of the support seat, and a Velcro is provided on the movable end of the fixing belt, and the Velcro is bonded to the adhesive layer on the outer surface of the fixing belt.

[0026] The beneficial effects of this improvement are: through the establishment of the protective pad, the comfort of supporting the patient's feet and calves can be increased; through the establishment of the fixing belt, the patient's calves can be wrapped around and the Velcro can be attached to the fixing belt at an appropriate distance, which can increase the stability of the patient's feet and calves when supporting them and prevent the feet and calves from shifting sideways and falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is the main view of the utility model;

[0028] Figure 2 This is a schematic diagram of the height adjustment structure of the utility model;

[0029] Figure 3 This is a schematic diagram of the top seat disassembly structure of the utility model;

[0030] Figure 4 This is a schematic diagram of the baffle spacing adjustment structure of the utility model;

[0031] Figure 5 This is a schematic diagram of the internal structure of the utility model;

[0032] In the figure: 1. Base; 2. Moving wheel; 3. Fixing rod; 4. Adjusting rod; 5. Fixing plate; 6. Fastening bolt 1; 7. Clamping plate; 8. Anti-slip rubber pad; 9. Through hole; 10. Fastening bolt 2; 11. Top seat; 12. Slot; 13. Screw hole; 14. Moving slot; 15. Fastening bolt 3; 16. Screw; 17. Moving seat; 18. Rotating handle; 19. Support seat; 20. Fixing belt; 21. Protective pad 1; 22. Velcro; 23. Adjusting plate; 24. Baffle; 25. Protective pad 2; 26. Fastening bolt 4; 27. Fastening bolt 5. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0034] like Figure 1-5As shown, a device for adjusting the position of knee replacement surgery includes a base 1, a movable wheel 2 and a fixed rod 3 are provided on the base 1, an adjusting rod 4 is sleeved on the outer end of the fixed rod 3, a fixing plate 5 is provided on the adjusting rod 4, a fastening bolt 6 is screwed on the fixing plate 5, and the fastening bolt 6 is connected to the splint 7, a through hole 9 is provided on the adjusting rod 4, and a fastening bolt 2 10 passes through the through hole 9 and is screwed to the fixed rod 3, the top of the adjusting rod 4 is snap-fitted with a slot 12 provided on the top seat 11, a screw hole 13 and a movable slot 14 are further provided on the top seat 11, and a fastening bolt 3 15 is screwed to the screw hole 13, a screw 16 is horizontally provided in the movable slot 14, and one end of the screw 16 passes through the movable seat 17 and is connected to the rotary handle 18 The inner wall thread of the movable seat 17 is adapted to the outer wall thread of the screw 16. The movable seat 17 is rotatably connected to the support seat 19, and the movable seat 17 and the support seat 19 are rotatably connected. A fastening bolt 26 is screwed on the rotating connection between the movable seat 17 and the support seat 19. An adjustment plate 23 is inserted into the top seat 11, and the adjustment plate 23 is connected to the baffle 24. Through this device, the patient's affected limb can be fixed, which can effectively reduce the labor intensity of medical staff and ensure the stability of the patient's affected limb position. The movable wheels 2 are arranged at the four corners of the bottom end of the base 1, and the fixing rod 3 is vertically arranged at the front and rear parts of the top end of the base 1, and each movable wheel 2 is provided with a brake block. The establishment of the movable wheel 2 can facilitate the displacement conversion of the device, and the establishment of the brake block on the movable wheel 2 can be When the hysteresis is on, the mobility of the movable wheel 2 is limited. The installation and fixation of the adjusting rod 4 can be facilitated by the establishment of the fixing rod 3. A number of through holes 9 are vertically and equidistantly opened in the middle of one side of the adjusting rod 4, and a fixing plate 5 is horizontally arranged on the upper part of the other side, and a fastening bolt 6 vertically penetrates the fixing plate 5 and is connected to the splint 7 located above the fixing plate 5, and the top end of the splint 7 and the bottom end of the top seat 11 are both provided with anti-slip rubber pads 8. By outwardly screwing the fastening bolt 2 10 to separate from the fixing rod 3 and the adjusting rod 4, the adjusting rod 4 can be moved up and down so that the top seat 11 can be adjusted to a suitable height according to the height of the operating bed. When the adjustment is completed, it is only necessary to penetrate the through hole 9 at the current position and screw the fastening bolt 2 10 inwardly into the screw hole 13 of the fixing rod 3, that is, the adjusting rod 4 can be positioned. After the top seat 11 is located on the operating bed, it is only necessary to rotate the fastening bolt 6 to drive the splint 7 to move up, which can cooperate with the top seat 11 to clamp the side end of the operating bed, thereby further fixing the device. The establishment of the anti-slip rubber pad 8 can increase the friction coefficient and enhance the stability of the clamping and fixation when using the top seat 11. The four corners of the top seat 11 near the edge are all provided with a card groove 12 adapted to the top protrusion of the adjusting rod 4. After the top protrusion of the adjusting rod 4 is inserted into the card groove 12 in the corresponding direction according to the different affected limbs of the patient, the fastening bolt 3 15 is used to screw into the screw hole 13 of the adjusting rod 4 through the screw hole 13 of the top seat 11, which can complete the installation and fixing operation of the top seat 11. The movable groove 14 is located in the middle position of the top seat 11.Baffles 24 are inserted on both sides of the rear middle part of the movable groove 14, and the outer ends of the baffles 24 on both sides are connected to the vertically arranged baffles 24, and fastening bolts 5 27 are screwed on the top seat 11 above the baffles 24 on both sides. By rotating the fastening bolts 5 27, the adjustment plate 23 can be moved inward and outward to adjust and fix the use spacing of the baffles 24 on both sides. A protective pad 25 is provided on the inside of the baffle 24, and the protective pad 25 is soft and elastic. Through the establishment of the baffle 24, the patient's thighs can be blocked and limited to prevent them from tilting left and right and affecting the stability of the affected limb. Through the establishment of the protective pad 25 on the inside of the baffle 24, the comfort of the baffle 24 when clamping and blocking the patient's thigh can be increased. The support seat 19 is located at the top of the movable seat 17, and the shape of the support seat 19 is L-shaped. The establishment of the support base 19 can facilitate supporting the patient's foot and calf when the knee joint of the patient's affected limb is flexed. When the fastening bolt 26 is rotated, the use angle of the support base 19 can be adjusted and fixed according to the flexion angle of the knee joint. The top of the support base 19 is provided with a protective pad 21 and a fixing belt 20, and the movable end of the fixing belt 20 is provided with a Velcro 22. The Velcro 22 is bonded to the adhesive layer on the outer surface of the fixing belt 20. The establishment of the protective pad 21 can facilitate increasing the comfort of supporting the patient's foot and calf. The establishment of the fixing belt 20 can facilitate wrapping around the patient's calf and sticking the Velcro 22 to the fixing belt 20 at an appropriate distance. This can increase the stability of the patient's foot and calf when supporting and preventing the foot and calf from lateral displacement and falling off.

[0035] The working principle of the present invention is as follows: after the device is pushed to the side end of the operating table outside the affected limb via the moving wheel 2, the second fastening bolt 10 is screwed outward to separate the fixing rod 3 and the adjusting rod 4, and the adjusting rod 4 is moved up and down, so that the top seat 11 can be adjusted to a suitable height for use according to the height of the operating table. When the adjustment is completed, it is only necessary to penetrate the through hole 9 at the current position and screw the second fastening bolt 10 inward into the screw hole 13 of the fixing rod 3, so that the position of the adjusting rod 4 can be fixed. When the top seat 11 is located on the operating table, it is only necessary to rotate the fastening bolt 1 6 to drive the splint 7 to move up, so that it can be connected with the top seat 11 The side ends of the operating table are clamped together to further fix the device. The establishment of the anti-slip rubber pad 8 can increase the friction coefficient and enhance the stability of the clamping and fixation when using the top seat 11. According to the different limbs of the patient, the top protrusion of the adjusting rod 4 is clamped into the groove 12 in the corresponding direction, and the fastening bolt 3 15 is used to screw into the screw hole 13 of the adjusting rod 4 through the screw hole 13 of the top seat 11, that is, the installation and fixing operation of the top seat 11 can be completed. By rotating the fastening bolt 5 27, the adjustment plate 23 can be moved inward and outward to adjust and fix the use distance between the baffles 24 on both sides. By setting up the baffle 24, the patient's thighs can be blocked and limited on both sides to prevent them from tilting left and right and affecting the stability of the affected limb. By setting up the protective pad 25 on the inside of the baffle 24, the comfort of the baffle 24 when clamping and blocking the patient's thigh can be increased. By setting up the support seat 19, the patient's foot and calf can be supported when the knee joint of the patient's affected limb is flexed. When the fastening bolt 26 is rotated, the use angle of the support seat 19 can be adjusted and fixed according to the flexion angle of the knee joint. By setting up the protective pad 21, it can be convenient to increase its support. The comfort of the patient's feet and calves when supported can be improved by setting up the fixing belt 20, which can be conveniently wrapped around the patient's calves, and then the Velcro 22 can be stuck to the fixing belt 20 at an appropriate distance, which can increase the stability of the patient's feet and calves when supported, and prevent the feet and calves from shifting sideways and falling off. By rotating the handle 18 to drive the screw 16 to rotate, the movable seat 17 can rotate along with the screw 16, driving the support seat 19 to move back and forth for position adjustment, so that the feet and calves in different positions can be supported under different angles of flexion of the patient's knee joint.

[0036] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the present invention to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A device for adjusting the position of a knee replacement operation, comprising a base (1), wherein a movable wheel (2) and a fixed rod (3) are provided on the base (1), an adjusting rod (4) is sleeved on the outer end of the fixed rod (3), a fixing plate (5) is provided on the adjusting rod (4), a fastening bolt (6) is screwed onto the fixing plate (5), and the fastening bolt (6) is connected to a clamping plate (7), a through hole (9) is opened on the adjusting rod (4), and a fastening bolt (10) passes through the through hole (9) and is screwed to the fixed rod (3), characterized in that: The top end of the adjusting rod (4) is connected to the card slot (12) provided on the top seat (11) by snapping, the top seat (11) is also provided with a screw hole (13) and a movable groove (14), and a fastening bolt (15) is screwed to the screw hole (13), a screw rod (16) is horizontally arranged in the movable groove (14), and one end of the screw rod (16) passes through the movable seat (17) and is connected to the rotary handle (18), the inner wall thread of the movable seat (17) is adapted to the outer wall thread of the screw rod (16), the movable seat (17) is rotatably connected to the support seat (19), and a fastening bolt (26) is screwed on the rotatable connection between the movable seat (17) and the support seat (19), an adjusting plate (23) is inserted into the interior of the top seat (11), and the adjusting plate (23) is connected to the baffle (24).

2. The position-adjustable device for knee replacement surgery according to claim 1, characterized in that: The moving wheels (2) are arranged at the four corners of the bottom end of the base (1), and the fixing rods (3) are vertically arranged at the front and rear parts of the top end of the base (1), and each moving wheel (2) is provided with a brake block.

3. The position-adjustable device for knee replacement surgery according to claim 1, characterized in that: A plurality of through holes (9) are vertically and equidistantly provided in the middle of one side of the adjusting rod (4), and a fixing plate (5) is horizontally provided on the upper portion of the other side thereof, and a fastening bolt (6) vertically penetrates the fixing plate (5) and is connected to a clamping plate (7) located above the fixing plate (5), and anti-slip rubber pads (8) are provided at the top end of the clamping plate (7) and the bottom end of the top seat (11).

4. The position-adjustable device for knee replacement surgery according to claim 1, characterized in that: The four corners of the top seat (11) near the edge are all provided with slots (12) adapted to the top protrusions of the regulating rod (4).

5. The position-adjustable device for knee replacement surgery according to claim 1, characterized in that: The movable groove (14) is located in the middle of the top seat (11), and baffles (24) are inserted on both sides of the rear middle of the movable groove (14), and the outer ends of the baffles (24) on both sides are connected to the baffles (24) arranged vertically, and fastening bolts (27) are screwed on the top seat (11) above the baffles (24) on both sides.

6. The position-adjustable device for knee replacement surgery according to claim 1, characterized in that: A second protective pad (25) is provided inside the baffle (24), and the second protective pad (25) is soft and elastic.

7. The position-adjustable device for knee replacement surgery according to claim 1, characterized in that: The support seat (19) is located at the top of the movable seat (17), and the shape of the support seat (19) is L-shaped.

8. The position-adjustable device for knee replacement surgery according to claim 1, characterized in that: The top of the support seat (19) is provided with a protective pad (21) and a fixing belt (20), and the movable end of the fixing belt (20) is provided with a magic tape (22), and the magic tape (22) and the adhesive layer on the outer surface of the fixing belt (20) are bonded together.

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