Adjustable support for knee joint replacement surgery

Abstract

The utility model belongs to the technical field of medical instruments, in particular to an adjustable support for knee replacement surgery, which comprises a support body, the support body is composed of a fixing seat, a clamping seat, a bracket and a leg supporting mechanism, and the leg supporting mechanism is composed of an adjusting supporting seat, a leg supporting plate, a leg pad, a fixing belt, a fixing ring and a first fastening bolt. Two moving grooves and an inserting groove are formed in the fixed seat, the two moving grooves are located in the two sides of the top end of the fixed seat respectively, a screw rod is arranged in each moving groove, a leg supporting mechanism is arranged on each screw rod, and the rotary knob is connected with a first bevel gear arranged in the fixed seat. The angle of the knee joint of a patient can be adjusted and supported through the support, the work intensity of medical workers and the operation difficulty can be effectively reduced, and manpower resources are saved.

Description

Technical Field

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

[0002] With the continuous increase of the elderly population in my country, there are more and more serious knee osteoarthritis, and the number of patients who need artificial knee replacement surgery is increasing year by year. The normal knee joint can flex and extend freely and has no restriction on movement. However, when there is a problem with the knee joint, it will affect daily life. In severe cases, the patient's movement is restricted and he cannot walk normally. When the function of the knee joint is seriously damaged, artificial knee replacement surgery is the choice of many patients. It can replace the damaged knee joint with artificial materials. Artificial knee replacement is a new technology for treating knee joint diseases that has gradually developed after the successful application of artificial hip joints in patients in modern times. It can be very effective. It can effectively eradicate late-stage knee pain, improve knee function, correct knee deformity and achieve long-term stability, greatly improving the patient's quality of life. At the same time, a stent is needed to support the patient's knee joint during knee replacement surgery. At present, in knee replacement surgery, the angle of the knee joint needs to be repeatedly adjusted to adapt to the needs of the surgery. However, there was no stent that can fix the knee joint at different angles in the past. It is often necessary to add more surgeons to continue to hold the patient's legs with their bare hands to maintain the patient's knee joint at the appropriate angle. However, this increases the number of surgeons, occupies more surgical resources, and increases the intensity and difficulty of the surgery. Utility Model Content

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

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: an adjustable support for knee replacement surgery, comprising a support body, and the support body is composed of a fixing seat, a clamping seat, a bracket seat and a leg support mechanism, and the leg support mechanism is composed of an adjusting support seat, a leg support plate, a leg pad, a fixing strap, a fixing ring and a fastening bolt. The adjusting support seat and the leg support plate are rotatably connected, and the fastening bolt is screwed onto its rotating connection. The fixing seat is provided with a clamping seat, a scale line, a knob and an anti-slip rubber pad, a fastening bolt 2 is screwed onto the clamping seat, and the fastening bolt 2 is connected to the splint, the fixing seat is provided with a movable groove and a slot, and the number of movable grooves is two, and the two movable grooves are respectively located on both sides of the top of the fixing seat, a screw is provided in the movable groove, and the leg support mechanism is provided on the screw, the knob is connected to a first bevel gear provided inside the fixing seat, and the first bevel gear is connected to a second bevel gear, and the second bevel gear is connected to one end of the screw.

[0005] The beneficial effects of the present invention are: the angle of the patient's knee joint can be adjusted and supported by the bracket, which can effectively reduce the workload and difficulty of surgery for medical staff and save human resources.

[0006] To facilitate the installation and fixing of the bracket body on the operating table:

[0007] As a further improvement of the above technical solution: clamping seats are provided on both sides of one end of the fixing seat, and two fastening bolts vertically penetrate the bottom end of the clamping seat and are connected to the clamping plate located at the inner end of the clamping seat.

[0008] The beneficial effect of this improvement is: by placing the fixing seat at the designated position of the operating bed according to the patient's affected limb, the clamping seat is located at the side end of the operating bed, and the second fastening bolt can be rotated to drive the splint to move up, so that the splint and the fixing seat cooperate with each other to clamp the operating bed, thereby completing the installation and fixing operation of the bracket body on the operating bed.

[0009] To enhance the stability of use:

[0010] As a further improvement of the above technical solution: the top end of the splint and the bottom end of the fixing seat are both provided with anti-slip rubber pads.

[0011] The beneficial effect of this improvement is that the provision of the anti-slip rubber pad can increase the friction coefficient when in contact with the operating table under clamping and fixation, thereby enhancing stability during installation and use.

[0012] In order to facilitate the use of the leg support mechanism, displacement adjustment is performed:

[0013] As a further improvement of the above technical solution: the screw is horizontally located in the middle of the movable groove, and one end of the screw passes through the adjustment support seat of the leg support mechanism and is connected to the second bevel gear located inside the fixed seat, and the outer wall thread of the screw is adapted to the inner wall thread of the adjustment support seat.

[0014] The beneficial effect of this improvement is that when the first bevel gear is rotated by rotating the knob, the first bevel gear can drive the screw to rotate synchronously through engagement with the second bevel gear, so that the leg support mechanism rotates with the screw and performs displacement adjustment in the movable groove.

[0015] In order to facilitate the reading and confirmation of the movement distance of the leg support mechanism and the rotation angle of the leg support plate:

[0016] As a further improvement of the above technical solution: a scale line 1 is provided on the top wall of the fixed seat at one end of the movable groove, and a scale line 2 is provided on the outer side wall of the rotation connection of the leg support plate.

[0017] The beneficial effects of this improvement are: by setting up scale line one, the moving distance of the leg support mechanism can be easily read and confirmed, and by setting up scale line two, the rotation angle of the leg support plate can be read and confirmed by adjusting the direction of the arrow on the top wall of the support seat rotation connection to scale line two.

[0018] To facilitate the support and fixation of the patient's legs:

[0019] As a further improvement of the above technical solution: the leg pad is arranged at the top of the leg support plate, and the fixing belt and the fixing ring are arranged at the two ends of the leg support plate relatively. The leg pad is soft and elastic, and the other end of the fixing belt away from the leg support plate is provided with Velcro, and the Velcro is adhesively connected to the adhesive layer on the outer surface of the fixing belt.

[0020] The beneficial effects of this improvement are: by setting up the leg pad at the top of the leg support plate, the comfort of supporting the patient's legs can be increased; by setting up the fixing belt and the fixing ring, when the patient's thigh or calf fits the leg pad, it is only necessary to use the fixing belt to wrap around the patient's leg, and then pass the movable end through the fixing ring, fold it back and tighten it, so that the Velcro sticks to the adhesive layer on the outer surface of the fixing belt at an appropriate distance, and the patient's leg can be fixed in position.

[0021] To facilitate the installation and fixing of the bracket:

[0022] As a further improvement of the above technical solution: there are several slots, and the slots are equidistantly arranged on the fixed seats at both ends of the movable slot, and the slots are plug-connected with the plug blocks provided at both ends of the bracket.

[0023] The beneficial effect of this improvement is that the bracket located in the movable groove can be installed and fixed by plugging the insert block into the slot.

[0024] To facilitate support of the patient's feet and increase comfort during support:

[0025] As a further improvement of the above technical solution: a foot pad is provided on the top of the bracket, and the foot pad is soft and elastic.

[0026] The beneficial effect of this improvement is that by providing the foot pad at the top of the support seat, the comfort of the patient's feet can be increased when the support seat supports the patient's feet. 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 bracket disassembly structure of the utility model;

[0029] Figure 3This is a schematic diagram of the displacement adjustment structure of the leg support mechanism of the present utility model;

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

[0031] Figure 5 This is a schematic diagram of the angle adjustment structure of the leg support plate of the present utility model;

[0032] In the figure: 1. Fixed seat; 2. Clamping seat; 3. Support seat; 4. Adjustment support seat; 5. Leg support plate; 6. Leg pad; 7. Fixing strap; 8. Fixing ring; 9. Fastening bolt 1; 10. Scale line 1; 11. Knob; 12. Fastening bolt 2; 13. Clamp; 14. Anti-slip rubber pad; 15. Moving groove; 16. Slot; 17. Screw; 18. First bevel gear; 19. Second bevel gear; 20. Velcro; 21. Scale line 2; 22. Insert; 23. Foot pad. 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, an adjustable bracket for knee replacement surgery includes a bracket body, and the bracket body is composed of a fixing seat 1, a clamping seat 2, a bracket 3 and a leg support mechanism, and the leg support mechanism is composed of an adjustment support seat 4, a leg support plate 5, a leg pad 6, a fixing belt 7, a fixing ring 8 and a fastening bolt 9. The adjustment support seat 4 and the leg support plate 5 are rotatably connected, and the fastening bolt 9 is screwed on its rotating connection. The fixing seat 1 is provided with a clamping seat 2, a scale line 10, a knob 11 and an anti-slip rubber pad 14. The clamping seat 2 is screwed with a fastening bolt 2 12, and the fastening bolt 2 12 is connected to the splint 13. The fixing seat 1 is provided with a movable groove 15 and a slot 16, and the number of the movable grooves 15 is two, and the two movable grooves 15 are two. The grooves 15 are respectively located on both sides of the top of the fixed seat 1, and a screw 17 is provided in the movable groove 15, and a leg support mechanism is provided on the screw 17. The knob 11 is connected to the first bevel gear 18 provided inside the fixed seat 1, and the first bevel gear 18 is connected to the second bevel gear 19, and the second bevel gear 19 is connected to one end of the screw 17. Through this bracket, the angle of the patient's knee joint can be adjusted and supported, which can effectively reduce the work intensity and surgical difficulty of medical staff and save human resources. A clamping seat 2 is provided on both sides of one end of the fixed seat 1, and a fastening bolt 2 12 vertically penetrates the bottom end of the clamping seat 2 and is connected to the splint 13 located at the inner end of the clamping seat 2. After the fixed seat 1 is placed at the designated position of the operating bed according to the patient's affected limb, The clamping seat 2 is located at the side end of the operating bed, that is, the second fastening bolt 12 can be rotated to drive the splint 13 to move up, so that the splint 13 and the fixing seat 1 cooperate with each other to clamp the operating bed, thereby completing the installation and fixing operation of the bracket body on the operating bed. The top end of the splint 13 and the bottom end of the fixing seat 1 are both provided with anti-slip rubber pads 14. Through the establishment of the anti-slip rubber pads 14, the friction coefficient can be increased when contacting the operating bed under clamping and fixation, thereby enhancing the stability during installation and use. The screw 17 is horizontally located in the middle position of the movable groove 15, and one end of the screw 17 passes through the adjustment support seat 4 of the leg support mechanism and is connected to the second bevel gear 19 located inside the fixing seat 1, and the outer wall thread of the screw 17 is adapted to the inner wall thread of the adjustment support seat 4, and by rotating the screw When the button 11 drives the first bevel gear 18 to rotate, the first bevel gear 18 can drive the screw 17 to rotate synchronously through the engagement with the second bevel gear 19, so that the leg support mechanism rotates along with the screw 17 and performs displacement adjustment in the movable groove 15. A scale line 10 is provided on the top wall of the fixed seat 1 at one end of the movable groove 15, and a scale line 21 is provided on the outer wall of the rotation connection of the leg support plate 5. Through the establishment of the scale line 10, it is convenient to read and confirm the moving distance of the leg support mechanism. Through the establishment of the scale line 21, the rotation angle of the leg support plate 5 can be read and confirmed by adjusting the direction of the arrow on the top wall of the rotation connection of the support seat 4 to the scale line 21. The leg pad 6 is provided at the top of the leg support plate 5.The fixing belt 7 and the fixing ring 8 are relatively arranged at the two ends of the leg support plate 5, and the leg pad 6 is soft and elastic, and the other end of the fixing belt 7 away from the leg support plate 5 is provided with a Velcro 20, and the Velcro 20 is bonded to the adhesive layer on the outer surface of the fixing belt 7. The establishment of the leg pad 6 at the top of the leg support plate 5 can increase the comfort of supporting the patient's legs. Through the establishment of the fixing belt 7 and the fixing ring 8, when the patient's thigh or calf is fitted with the leg pad 6, it is only necessary to use the fixing belt 7 to wrap around the patient's leg, and then pass the movable end through the fixing ring 8, and fold it back and tighten it so that the Velcro 20 sticks to the appropriate The distance between the fixing belt 7 and the fixing belt 7 is fixed on the adhesive layer on the outer surface, that is, the position of the patient's legs can be fixed. The number of the slots 16 is several, and the slots 16 are equidistantly opened on the fixing seat 1 at both ends of the movable groove 15. The slots 16 are plug-connected with the plug blocks 22 set at both ends of the bracket 3. After the plug blocks 22 are plugged into the slots 16, the bracket 3 located in the movable groove 15 can be installed and fixed. The top of the bracket 3 is provided with a foot pad 23, and the foot pad 23 is soft and elastic. The establishment of the foot pad 23 at the top of the bracket 3 can increase the comfort of the patient's feet when the bracket 3 supports the patient's feet.

[0035] The working principle of the present invention is as follows: after the fixing seat 1 is placed at the designated position of the operating bed according to the position of the patient's affected limb, the clamping seat 2 is located at the side end of the operating bed, that is, the fastening bolt 2 12 can be rotated to drive the splint 13 to move up, so that the splint 13 and the fixing seat 1 cooperate with each other to clamp the operating bed, thereby completing the installation and fixing operation of the bracket body on the operating bed. By setting up the anti-slip rubber pad 14, the friction coefficient can be increased when it contacts the operating bed under clamping and fixation, thereby enhancing the stability during installation and use. Both sides of the top of the fixing seat 1 are provided with movable grooves 15, and the screws 17 in the movable grooves 15 on both sides are provided with leg support mechanisms. After rotating the knob 11 to adjust the use spacing of the leg support mechanisms on both sides and rotating the fastening bolt 9 to adjust the use angle of the leg support plate 5, the patient's thigh and calf can be supported separately. , so that the patient's knee joint can be kept in a flexed state at a specified angle. By setting up the fixing belt 7 and the fixing ring 8, when the patient's thigh or calf is in contact with the leg pad 6, it is only necessary to use the fixing belt 7 to wrap around the patient's leg, and then pass its movable end through the fixing ring 8, fold it back and tighten it, so that the Velcro 20 sticks to the adhesive layer on the outer surface of the fixing belt 7 at an appropriate distance, that is, the patient's leg can be fixed in position. By setting up the scale line 10, it is convenient to read and confirm the moving distance of the leg support mechanism. By setting up the scale line 21, the rotation angle of the leg support plate 5 can be read and confirmed by adjusting the arrow on the top wall of the rotation connection of the support seat 4 to the direction of the scale line 21. After the plug block 22 is plugged into the slot 16, the bracket 3 located in the movable groove 15 can be installed and fixed to support the patient's foot.

[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. An adjustable brace for knee replacement surgery, comprising a brace body, wherein the brace body is composed of a fixing seat (1), a clamping seat (2), a bracket (3) and a leg support mechanism, and the leg support mechanism is composed of an adjustable support seat (4), a leg support plate (5), a leg pad (6), a fixing belt (7), a fixing ring (8) and a fastening bolt (9), characterized in that: The adjustment support seat (4) and the leg support plate (5) are rotatably connected, and a fastening bolt (9) is screwed on the rotatable connection. The fixing seat (1) is provided with a clamping seat (2), a scale line (10), a knob (11) and an anti-slip rubber pad (14). The clamping seat (2) is screwed with a fastening bolt (12), and the fastening bolt (12) is connected to the clamping plate (13). The fixing seat (1) is provided with a moving groove (15) and a slot (16). The movable grooves (15) are two in number, and the two movable grooves (15) are respectively located on both sides of the top of the fixed seat (1). A screw (17) is provided in the movable groove (15), and a leg support mechanism is provided on the screw (17). The knob (11) is connected to a first bevel gear (18) provided inside the fixed seat (1), and the first bevel gear (18) is connected to a second bevel gear (19), and the second bevel gear (19) is connected to one end of the screw (17).

2. The adjustable brace for knee replacement surgery according to claim 1, characterized in that: A clamping seat (2) is provided on both sides of one end of the fixing seat (1), and two fastening bolts (12) vertically penetrate the bottom end of the clamping seat (2) and are connected to a clamping plate (13) located at the inner end of the clamping seat (2).

3. The adjustable brace for knee replacement surgery according to claim 1, characterized in that: The top end of the clamping plate (13) and the bottom end of the fixing seat (1) are both provided with anti-slip rubber pads (14).

4. The adjustable brace for knee replacement surgery according to claim 1, characterized in that: The screw rod (17) is horizontally located in the middle of the movable groove (15), and one end of the screw rod (17) passes through the adjustment support seat (4) of the leg support mechanism and is connected to the second bevel gear (19) located inside the fixed seat (1), and the outer wall thread of the screw rod (17) is adapted to the inner wall thread of the adjustment support seat (4).

5. The adjustable brace for knee replacement surgery according to claim 1, characterized in that: A scale line 1 (10) is provided on the top wall of the fixed seat (1) at one end of the movable groove (15), and a scale line 2 (21) is provided on the outer side wall of the rotation connection of the leg support plate (5).

6. The adjustable brace for knee replacement surgery according to claim 1, characterized in that: The leg pad (6) is arranged at the top of the leg support plate (5), and the fixing belt (7) and the fixing ring (8) are arranged at the two ends of the leg support plate (5) relative to each other, and the leg pad (6) is soft and elastic, and the other end of the fixing belt (7) away from the leg support plate (5) is provided with a Velcro (20), and the Velcro (20) is bonded to the adhesive layer on the outer surface of the fixing belt (7).

7. The adjustable brace for knee replacement surgery according to claim 1, characterized in that: The number of the slots (16) is several, and the slots (16) are equidistantly arranged on the fixed seat (1) at both ends of the movable slot (15), and the slots (16) are plug-connected with the plug blocks (22) provided at both ends of the bracket (3).

8. The adjustable brace for knee replacement surgery according to claim 1, characterized in that: A foot pad (23) is provided at the top of the bracket (3), and the foot pad (23) is soft and elastic.

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