Traction frame for orthopedics department

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a traction frame for the orthopedics department. The device comprises a support, a first sliding sleeve, a second sliding sleeve, a leg support and a fixing plate, a first adjusting mechanism is arranged between the leg support and the first sliding sleeve, a binding assembly is arranged on one side of the fixing plate, a second adjusting mechanism is arranged between the second sliding sleeve and the fixing plate, and the first adjusting mechanism comprises a first fixing block fixed to the side wall of the first sliding sleeve; a first threaded hole is formed in the first fixing block, a first threaded rod is arranged in the first threaded hole, a fixing rod is arranged at the top of the first threaded rod, the top end of the fixing rod is hinged to the bottom of the leg support, a first adjusting assembly is arranged between the side wall of the fixing rod and the bottom of the leg support, and a first linkage assembly is arranged between the first threaded rod and the fixing rod. The first threaded rod and the fixing rod can rotate relatively and freely, the legs of a patient do not need to be supported manually during adjustment, and adjustment can be conveniently conducted in the operation process or after the legs of the patient are well placed.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an orthopedic traction frame. Background Art

[0002] In orthopedics, there are many surgeries on the lower limbs, such as intertrochanteric fractures, femoral shaft fractures, tibia and fibula fractures, etc. In lower limb surgeries, a traction frame is needed to assist. Traction can maintain the alignment of the fracture ends, ensure stability during the fracture healing process, and reduce the risk of displacement of the fracture ends; traction can reduce local pressure, relieve compression on nerves, and improve local blood circulation; and the traction frame can provide stable support, making it easier for doctors to perform surgical operations and improve the safety and accuracy of the operation.

[0003] The current traction frame can be detachably connected to the operating bed when in use. The traction frame includes a bracket, a fixing device, an adjusting device and a connecting device connected to the operating bed. Two brackets are provided. The bracket includes a square fixing rod, and two sliding sleeves are provided on the fixing rod. The fixing device includes a leg rest and a binding component for fixing the foot, and the leg rest and the binding component are respectively located above the two sliding sleeves. The adjusting device is located so as to be adjustable at multiple angles.

[0004] Although the existing traction frame can be adjusted in multiple directions, the current traction frame is fixed after adjustment by tightening bolts. During use, since the bolts are located on the side walls, the force for supporting the patient's legs is entirely fixed by the friction between the screw rods of the bolts and the fixing rods. The contact area between the screw rods of the bolts and the fixing rods is relatively small, and the force is relatively heavy. This results in that in order to ensure a more stable fixation and prevent loosening during use, it is necessary to tighten the bolts with force. During long-term use, the ends of the screw rods of the bolts that contact the fixing rods are prone to wear and deformation, affecting the fixing effect. Moreover, after the bolts are loosened, they cannot support the patient's legs. Therefore, it is very inconvenient to adjust the leg after it is placed during surgery or after the patient's legs are placed. Because the weight of the patient's legs is on the leg rest, it will slide downward under the action of gravity after the bolts are loosened. Therefore, during surgery or after the patient's legs are placed, when adjusting, it is necessary to lift the patient's legs manually or hold the fixing rods manually for artificial support. After the adjustment, the bolts must be tightened before they can be loosened. This makes it inconvenient to adjust the legs after they are placed, and generally at least two people are required during adjustment, one to support the patient's legs and the other to adjust. In addition, artificial support is not easy to keep the legs stable during adjustment, resulting in inconvenience in use. Summary of the invention

[0005] The purpose of the present invention is to provide an orthopedic traction frame, which is convenient for adjustment during surgery or after the patient's legs are placed.

[0006] The orthopedic traction frame comprises two brackets, a first sliding sleeve and a second sliding sleeve are sleeved on the brackets, a locking assembly is arranged on the first sliding sleeve and the second sliding sleeve, a leg support is arranged above the first sliding sleeve, a first adjustment mechanism is arranged between the leg support and the first sliding sleeve, a fixing plate is vertically arranged above the second sliding sleeve, a binding assembly is arranged on one side of the fixing plate, and a second adjustment mechanism is arranged between the second sliding sleeve and the fixing plate;

[0007] The first adjustment mechanism comprises a first fixing block horizontally fixed to the side wall of the first sliding sleeve, a first threaded hole communicating with each other from top to bottom is opened on the first fixing block, a first screw rod threadably matched with the first threaded hole is arranged in the first threaded hole, a fixing rod independent of the first screw rod is vertically arranged on the top of the first screw rod, the top end of the fixing rod is hinged to the bottom of the leg support, and a first adjustment component for adjusting the inclination angle of the leg support is arranged between the side wall of the fixing rod and the bottom of the leg support;

[0008] A first linkage assembly is arranged between the first screw rod and the fixed rod, and the first linkage assembly is used to connect the first screw rod and the fixed rod and enable the first screw rod to rotate independently.

[0009] Furthermore, the first adjustment assembly includes a second screw rod, on which a first sleeve threadedly matches is sleeved, and one end of the second screw rod is hinged to a side wall of the fixing rod and swings up and down;

[0010] One end of the first sleeve extends beyond the second screw and is fixed with a partition, a connecting column is vertically fixed to the side of the partition away from the first sleeve, a connecting pipe is independently sleeved on the connecting column, a first bearing is installed between the connecting pipe and the connecting column, and one end of the connecting pipe is hinged to the bottom of the leg support.

[0011] Furthermore, the first linkage assembly includes a fixing column vertically fixed to the top of the first screw rod, the top of the fixing column is provided with a first groove for inserting the bottom end of the fixing rod, the bottom end of the fixing rod is located in the first groove and is horizontally fixed with a second limit block, and the edge of the second limit block exceeds the side wall of the fixing rod;

[0012] A first limiting block for blocking the second limiting block is arranged in the first groove above the second limiting block, and a baffle for preventing the first limiting block from detaching is fixed at the notch of the first groove;

[0013] A connecting block with an annular structure is independently sleeved on the fixing rod above the baffle, a fixing pipe is independently sleeved on the outer side of the connecting block, and the fixing pipe is threadedly matched with the upper half of the fixing column, and a connecting assembly is provided between the fixing pipe and the connecting block to enable the connecting block to rotate freely;

[0014] A plurality of first connecting rods are vertically fixed on the top of the first limiting block, a first through hole for the top end of the first connecting rod to pass through is opened on the baffle, and the top end of the first connecting rod passes through the first through hole and is fixed to the bottom of the connecting block.

[0015] Furthermore, the diameter of the first screw rod is smaller than the diameter of the fixing column.

[0016] Furthermore, the connection assembly includes a second bearing, which is installed between the connection block and the fixed tube, and the top end of the fixed tube is flush with the top end of the connection block.

[0017] Furthermore, a movable block is independently arranged in the first groove below the second limit block, a second fixed block is horizontally fixed in the first groove between the movable block and the second limit block, a sphere is independently arranged on the top of the movable block, and a second groove for the sphere to be inserted and rotated freely is opened on the top of the movable block;

[0018] The second fixed block is provided with a second through hole for the ball to pass through, a second connecting rod is vertically fixed to the top of the edge of the movable block, the second fixed block is provided with a third through hole for the top end of the second connecting rod to pass through, and the top end of the second connecting rod passes through the third through hole and is fixed to the first limit block.

[0019] Furthermore, the second adjustment mechanism includes a second sleeve arranged horizontally, a third screw threadedly matched with the second sleeve is arranged inside the second sleeve, one end of the third screw passes through the second sleeve and is fixed to the fixing plate, a third sleeve is independently sleeved on the outer side of the second sleeve, and a fixing assembly for fixing the third sleeve to the second sleeve is arranged on the third sleeve;

[0020] A first fixing rod is vertically arranged at the bottom of the third sleeve, the first fixing rod is hinged to the bottom of the third sleeve, and a second adjusting component for adjusting the tilt angle of the third sleeve is arranged between the first fixing rod and the bottom of the third sleeve;

[0021] A third fixed block is horizontally fixed to the side wall of the second sliding sleeve, and a second threaded hole is opened on the third fixed block, which is connected up and down. A fourth screw rod threadably matched with the second threaded hole is arranged in the second threaded hole, and a second linkage assembly is arranged between the fourth screw rod and the first fixed rod, and the second linkage assembly is used to connect the fourth screw rod to the first fixed rod and make the fourth screw rod rotate independently.

[0022] Furthermore, the outer side wall of the third sleeve is a rectangular structure, and a disc is fixed to one end of the third screw rod away from the fixing plate.

[0023] Furthermore, the fixing assembly includes two nuts, the length of the third sleeve is smaller than the length of the second sleeve, the outer walls at both ends of the second sleeve are provided with external threads that threadably match the nuts, the two nuts are respectively located at both ends of the second sleeve, and the inner diameter of the third sleeve is smaller than the outer diameter of the nuts.

[0024] Furthermore, a third bearing is installed between the third sleeve and the second sleeve.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The first screw rod and the fixing rod of the present invention can rotate relatively freely, so the height of the leg rest can be adjusted and the leg rest can be rotated separately, and the adjustment is convenient; and the locking method is locked by the thread of the first screw rod and the first fixing block, so when adjusting the leg rest, there is no need to manually support the patient's legs, so that adjustment can be made during the operation or after the patient places the legs on the leg rest. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0029] Figure 3 for Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0030] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at C in the middle;

[0031] The names of the components in the figure are: 1. bracket; 2. first sliding sleeve; 3. first screw; 4. first fixed block; 5. fixed column; 6. leg support; 7. fixed plate; 8. third screw; 9. second sleeve; 10. third sleeve; 11. second sliding sleeve; 12. movable block; 13. second connecting rod; 14. fixed tube; 15. second fixed block; 16. connecting block; 17. first connecting rod; 18. fixed rod; 19. baffle; 20. first limit block; 21. second limit block; 22. sphere; 23. second screw; 24. first sleeve; 25. connecting column; 26. connecting tube; 27. partition; 28. nut. DETAILED DESCRIPTION

[0032] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0033] The orthopedic traction frame described in this embodiment is as follows Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, it includes two brackets 1, and the bracket 1 is a rod with a square structure. One end of the bracket 1 is provided with a connecting mechanism for connecting it to the operating bed, and the connecting mechanism enables the bracket 1 to be detachably connected to the operating bed. The structure of its connecting mechanism is consistent with the structure of the connection between the existing traction frame and the operating bed. A support rod is vertically arranged at the bottom of the other end of the bracket 1. The support rod is a telescopic rod, and the support height of the bracket 1 can be adjusted. The structure of the support rod is consistent with the support rod structure of the existing traction frame. The bracket 1 is preferably a structure of three rods in the existing traction frame, and the three rods swing horizontally between each other and are fixed after swinging. The horizontal position of the bracket 1 can be adjusted by the swinging between the three rods. Of course, the bracket 1 can also be a structure of one rod in the existing traction frame.

[0034] The bracket 1 is provided with a first sliding sleeve 2 and a second sliding sleeve 11. The first sliding sleeve 2 and the second sliding sleeve 11 are both rectangular frames connected at both ends, and the inner wall and the outer wall are both rectangular structures. Bolts (locking components) are provided on the first sliding sleeve 2 and the second sliding sleeve 11. A third threaded hole threadedly matched with the bolt is provided on the top of the first sliding sleeve 2 and the second sliding sleeve 11. The first sliding sleeve 2 and the second sliding sleeve 11 slide on the bracket 1 and are fixed by bolts. A leg support 6 is provided above the first sliding sleeve 2. The leg support 6 is a leg support for supporting the patient's legs on the existing traction frame. A first adjusting mechanism is provided between the leg support 6 and the first sliding sleeve 2. A fixing plate 7 is vertically provided above the second sliding sleeve 11. A binding component is provided on one side of the fixing plate 7. The binding component is a shoe-shaped structure. The structure of the binding component is consistent with the structure for fixing the patient's foot on the existing traction frame. A second adjusting mechanism is provided between the second sliding sleeve 11 and the fixing plate 7.

[0035] The first adjusting mechanism includes a first fixing block 4 horizontally fixed to the side wall of the first sliding sleeve 2, the first fixing block 4 is provided with a first threaded hole communicating with each other up and down, a first screw rod 3 threadedly matched therewith is arranged in the first threaded hole, the first fixing block 4 is fixed to the outside of the first sliding sleeve 2, such as the first fixing block 4 on the front first sliding sleeve 2 is fixed to the front side of the front first sliding sleeve 2, and the first fixing block 4 on the rear first sliding sleeve 2 is fixed to the rear side of the rear first sliding sleeve 2, so that the first screw rod 3 is located on the outside, which is convenient for rotating the first screw rod 3.

[0036] A fixing rod 18 independent of the first screw rod 3 is vertically arranged on the top. The top of the fixing rod 18 is hinged to the bottom of the leg rest 6 and swings along the length direction of the leg rest 6. A mounting hole communicating front and back is opened at the top of the fixing rod 18. A rotating shaft is installed in the mounting hole. Mounting blocks are vertically fixed through the mounting holes at both ends of the rotating shaft. The mounting blocks are fixed to the bottom of the leg rest 6 and rotate in the mounting hole through the rotating shaft, so that the fixing rod 18 is hinged to the leg rest 6.

[0037] The side wall of the fixing rod 18 is hinged with a second screw rod 23 that swings up and down, and one end of the second screw rod 23 is hinged without a thread. The hinged mode of the second screw rod 23 and the fixing rod 18 is consistent with the hinged mode of the fixing rod 18 and the bottom of the leg support 6. The first adjusting component includes a second screw rod 23, and the second screw rod 23 is sleeved with a first sleeve 24 that is threadedly matched with the second screw rod 23. The inner wall of the first sleeve 24 is provided with an internal thread. One end of the first sleeve 24 exceeds the second screw rod 23 and is fixed with a partition 27. The partition 27 is a circular plate, and the diameter of the partition 27 is consistent with the outer diameter of the first sleeve 24. A connecting column 25 is vertically fixed on the side of the partition 27 away from the first sleeve 24. The diameter of the connecting column 25 is smaller than the diameter of the partition 27. A connecting pipe 26 is independently sleeved on the connecting column 25. The outer diameter of the connecting pipe 26 is consistent with the outer diameter of the first sleeve 24. A first bearing is installed between the tube 26 and the connecting column 25, and the inner ring of the first bearing is fixedly sleeved on the connecting column 25, and the outer ring of the first bearing is fixed to the inner wall of the connecting tube 26. One end of the connecting tube 26 is hinged to the bottom of the leg rest 6, and the hinge method of the connecting tube 26 and the bottom of the leg rest 6 is consistent with the hinge method of the fixing rod 18 and the leg rest 6. Through the threaded cooperation of the first sleeve 24 and the second screw 23, the combined length of the second screw 23 and the first sleeve 24 can be adjusted, thereby adjusting the inclination angle of the leg rest 6. Through the first bearing, the rotation of the first sleeve 24 will not drive the connecting tube 26 to rotate, so that the rotation of the first sleeve 24 completes the adjustment of the inclination angle of the leg rest 6. It can also be adjusted during surgery or after the patient's legs are placed on the leg rest 6. No artificial support is required, which is more convenient.

[0038] The content of the above paragraph as a whole constitutes a first adjustment component for adjusting the inclination angle of the leg rest 6. Of course, in some embodiments, the connecting tube 26 and the connecting column 25 may not be connected through the first bearing, one end of the connecting column 25 is located in the connecting tube 26, and a circular plate is fixed thereto, the diameter of the connecting column 25 is smaller than the diameter of the circular plate, a block for blocking the circular plate is provided in the connecting tube 26, a stopper plate for preventing the circular plate from detaching is fixed at the outlet of the connecting tube 26, the stopper plate is in a circular ring shape, the inner ring diameter of the stopper plate is smaller than the diameter of the circular plate, and the circular plate is located between the stopper plate and the stopper.

[0039] A fixing column 5 is vertically fixed on the top of the first screw rod 3, and a first groove is opened on the top of the fixing column 5 for inserting the bottom end of the fixing rod 18. The first groove has a circular structure, and the bottom end of the fixing rod 18 is located in the first groove and a second limit block 21 is horizontally fixed thereto. The edge of the second limit block 21 exceeds the side wall of the fixing rod 18, and the second limit block 21 is a circular plate. The diameter of the fixing rod 18 is smaller than the diameter of the second limit block 21, or the second limit block 21 is provided with a plurality of blocks, which are evenly fixed on the outer side wall of the bottom end of the fixing rod 18. A first limit block 20 for blocking the second limit block 21 is provided in the first groove above the second limit block 21. The first limit block 20 is annular, and the first limit block 20 is sleeved on the fixing rod 18. The inner ring diameter of the first limit block 20 is smaller than the diameter of the second limit block 21 to prevent the second limit block 21 from passing through the inner ring of the first limit block 20. An anti-lock brake is fixed at the notch of the first groove. The baffle 19 that stops the first limit block 20 from disengaging is in the shape of a circular ring. Of course, the baffle 19 can also be a number of fixed blocks, which are evenly fixed in the notch of the first groove. The inner ring diameter of the baffle 19 is smaller than the outer ring diameter of the first limit block 20 to prevent the first limit block 20 from passing through the inner ring of the baffle 19. The fixing rod 18 above the baffle 19 is independently sleeved with a connecting block 16 with an annular structure, and the outer side of the connecting block 16 is independently sleeved with a fixing tube 14, and the fixing tube 14 is threadedly matched with the upper half of the fixing column 5. The upper half of the outer side wall of the fixing column 5 is provided with an external thread, and the inner side wall of the fixing tube 14 is provided with an internal thread that is threadedly matched with the external thread on the fixing column 5. A number of first connecting rods 17 are vertically fixed to the top of the first limit block 20, and a first through hole is provided on the baffle 19 for the top end of the first connecting rod 17 to pass through. The top end of the first connecting rod 17 passes through the first through hole and is fixed to the bottom of the connecting block 16.

[0040] A second bearing is installed between the connecting block 16 and the fixed tube 14. The inner ring of the second bearing is fixedly sleeved on the connecting block 16, and the outer ring of the second bearing is fixed to the inner wall of the top end of the fixed tube 14. Of course, the inner wall where the fixed tube 14 and the second bearing are fixed has no threads, and the top end of the fixed tube 14 is flush with the top end of the connecting block 16. The content of this paragraph as a whole constitutes a connecting assembly that allows the connecting block 16 to rotate freely.

[0041] Of course, in some embodiments, the connecting component can also be a plug-in block fixed on the outer wall of the connecting block 16, the plug-in block is in the shape of a ring or several pieces, and the inner wall at the top of the fixed tube 14 is provided with a circular groove for inserting the plug-in block and rotating horizontally. The plug-in block is located in the circular groove, so that the fixing tube 14 moves up and down, driving the connecting block 16 to move up and down.

[0042] The above three sections constitute as a whole a first linkage assembly for connecting the first screw rod 3 with the fixing rod 18 and making the first screw rod 3 rotate independently; through the threaded cooperation of the fixing tube 14 and the fixing column 5, the fixing tube 14 drives the connecting block 16 to move up and down, and the connecting block 16 drives the first limit block 20 to move up and down through the first connecting rod 17. When the first limit block 20 moves downward to tighten the second limit block 21, the second limit block 21 is fixed in the first groove, so that the second limit block 21 is fixed to the fixing column 5, thereby fixing the fixing rod 18. When the fixing tube 14 drives the first limit block 20 to move upward, a gap occurs between the first limit block 20 and the second limit block 21, and the second limit block 21 is not fixed to the first groove. Therefore, when the fixing column 5 rotates, the second limit block 21 and the fixing rod 18 will not rotate with it. Through the second bearing, when the fixing tube 14 rotates, it will not drive the connecting block 16 to rotate, so the connecting block 16 will not drive the first connecting rod 17 to rotate.

[0043] The diameter of the first screw rod 3 is smaller than the diameter of the fixing column 5 , so that the fixing column 5 serves as a handle, which facilitates the rotation of the first screw rod 3 through the fixing column 5 and also facilitates the installation of components in the fixing column 5 .

[0044] A movable block 12 is independently arranged in the first groove below the second limiting block 21. The movable block 12 is a circular block. The diameter of the movable block 12 is smaller than the diameter of the first groove. A second fixed block 15 is horizontally fixed in the first groove between the movable block 12 and the second limiting block 21. A sphere 22 is independently arranged on the top of the movable block 12. A second groove for inserting and freely rotating the sphere 22 is provided on the top of the movable block 12. The second groove is a semicircular structure. A second through hole for the sphere 22 to pass through is provided on the second fixed block 15. A second connecting rod 13 is vertically fixed on the top of the edge of the movable block 12. The second connecting rod 13 is provided with a plurality of roots. A third through hole for the top end of the second connecting rod 13 to pass through is provided on the second fixed block 15. The top end of the second connecting rod 13 passes through The third through hole is fixed to the first limit block 20. When the first limit block 20 contacts the top surface of the second limit block 21, there is a gap from the top of the sphere 22 to the bottom surface of the second limit block 21, and the gap from the top of the sphere 22 to the bottom surface of the second limit block 21 is smaller than the distance from the top surface of the first limit block 20 to the bottom surface of the baffle 19. In this way, when the fixed tube 14 moves upward and drives the first limit block 20 and the movable block 12 to move upward, the sphere 22 first contacts the bottom surface of the second limit block 21, and the sphere 22 can lift the second limit block 21 upward. Through the contact between the sphere 22 and the bottom surface of the second limit block 21, the friction between the sphere 22 and the second limit block 21 is relatively small, thereby reducing the resistance of the fixed column 5 when rotating, making it easier to rotate the fixed column 5.

[0045] The second adjustment mechanism includes a horizontally arranged second sleeve 9, a third screw 8 threadedly matched therewith is arranged inside the second sleeve 9, one end of the third screw 8 passes through the second sleeve 9 and is fixed to the fixing plate 7, the left end of the third screw 8 is fixed to the right side wall of the fixing plate 7, a third sleeve 10 is independently sleeved on the outer side of the second sleeve 9, a first fixing rod is vertically arranged at the bottom of the third sleeve 10, the first fixing rod is hinged to the bottom of the third sleeve 10, the hinge mode of the first fixing rod and the bottom of the third sleeve 10 is consistent with the hinge mode of the fixing rod 18 and the bottom of the leg support 6, a second adjustment component for adjusting the inclination angle of the third sleeve 10 is arranged between the first fixing rod and the bottom of the third sleeve 10, the structure of the second adjustment component Consistent with the structure of the first adjustment component, the inclination angle of the third sleeve 10 is also adjusted, thereby adjusting the left and right inclination of the fixing plate 7. A third fixing block is horizontally fixed to the side wall of the second sliding sleeve 11, and a second threaded hole communicating with each other up and down is opened on the third fixing block. A fourth screw rod threadedly matched therewith is arranged in the second threaded hole, and a second linkage component is arranged between the fourth screw rod and the first fixing rod. The second linkage component is used to connect the fourth screw rod to the first fixing rod and enable the fourth screw to rotate independently. The structure of the second linkage component is consistent with that of the first linkage component. Through the thread cooperation of the fourth thread and the third fixing block, adjustment can be made during surgery or after the patient's foot is bound to the fixing plate 7.

[0046] The length of the third sleeve 10 is smaller than that of the second sleeve 9. The outer side walls at both ends of the second sleeve 9 are provided with external threads. The two ends of the second sleeve 9 are covered with nuts 28 threadedly matched therewith. Two nuts 28 are provided, and the inner diameter of the third sleeve 10 is smaller than the outer diameter of the nuts 28. The third sleeve 10 is tightened by two nuts 28. The third sleeve 10 is fixed to the second sleeve 9 by the friction between the nuts 28 and the third sleeve 10. The second sleeve 9 rotates in the third sleeve 10, so that the fixing plate 7 can be rotated and the fixing plate 7 can be adjusted. After the third sleeve 10 and the second sleeve 9 are fixed, the third screw 8 can be rotated to move the third screw 8 horizontally, driving the fixing plate 7 to move horizontally. The content of this paragraph as a whole constitutes a fixing assembly for fixing the third sleeve 10 to the second sleeve 9; of course, in some embodiments, the fixing assembly can also be a bolt, and a threaded hole threadedly matched with the bolt is provided on the side wall of the third sleeve 10, and the third sleeve 10 and the second sleeve 9 are fixed by the bolt.

[0047] The outer wall of the third sleeve 10 is a rectangular structure, which is convenient for hinged connection between the first fixing rod and the bottom of the third sleeve 10. A disc is fixed to the end of the third screw 8 away from the fixing plate 7. The disc is fixed to the right end of the third screw 8. The disc is a circular disc, which is consistent with the structure of the existing steering wheel. The diameter of the third screw 8 is smaller than the diameter of the disc. The third screw 8 is convenient to rotate through the disc. Of course, in order to facilitate the operation of the disc, a rocker is horizontally fixed to the side of the disc away from the third screw 8.

[0048] A third bearing is installed between the third sleeve 10 and the second sleeve 9. Two third bearings are installed. The third sleeves 10 are respectively installed at both ends of the third sleeve 10. The inner ring of the third bearing is fixedly sleeved on the second sleeve 9. The outer ring of the third bearing is fixed to the inner wall of the third sleeve 10. The third bearing can prevent horizontal movement between the second sleeve 9 and the third sleeve 10, and also make the second sleeve 9 rotate smoothly in the third sleeve 10.

[0049] Working process:

[0050] When in use, the bracket 1 is connected to the operating table through the existing connection method, and then the positions of the leg support 6 and the fixing plate 7 are adjusted by sliding the first sliding sleeve 2 and the second sliding sleeve 11 on the bracket 1, and the height of the leg support 6 is adjusted by rotating the first screw 3, and then the patient lies on the operating table, the patient's legs are placed on the leg support 6, and the patient's feet are tied to the fixing plate 7; during the operation, when the position of the patient's legs needs to be adjusted, such as the height adjustment, the fixing tube 14 is rotated upward, so that the fixing tube 14 drives the first limit block 20 to move upward, the second limit block 21 is released, and at the same time the ball 22 is driven to move upward, so that the ball 22 pushes the second limit block 21, so that the ball 22 contacts with the bottom of the second limit block 21, and then the first screw rod 3 is rotated through the fixing column 5. When the fixing column 5 and the first screw rod 3 rotate, the fixing rod 18 can be prevented from rotating due to the bearing between the connecting block 16 and the fixing tube 14, and the contact area with the second limit block 21 can be reduced by the ball 22, thereby reducing the friction between the second limit block 21 and the fixing column 5. The rotation of the first screw rod 3 drives the leg support 6 to move up and down, and because the patient's legs are placed on the top of the leg support 6 with a certain weight, the leg support 6 is pressed, so that the leg support 6 and the fixing rod 18 will not rotate easily. Of course, the fixing rod 18 and the leg support 6 can also be rotated separately through the bearing between the connecting block 16 and the fixing tube 14. The first screw rod 23 is engaged with the third screw rod 8 and the second screw rod 3, and the third screw rod 8 is engaged with the second screw rod 9, so that the second sleeve 24 and the second screw rod 3 do not need to be engaged, and the second sleeve 24 and the second screw rod 3 do not need to be engaged ... and the second sleeve 24 and the second screw rod 3 do not need to be engaged, so that the second sleeve 24 and the second screw rod 3 do not need to be engaged, and the second sleeve 24 and the second screw rod 3 do not need to be engaged, and the second sleeve 24 and the second screw rod 3 8 After the third sleeve 10 and the second sleeve 9 are loosened, the second sleeve 9 is rotated in the third sleeve 10 to rotate the fixed plate 7, thereby swinging and adjusting the fixed plate 7 and adjusting the footsteps. Through the threaded cooperation between the first fixed block 4 and the first screw 3, and the independent rotation of the first screw 3 and the fixed rod 18, the patient can place his legs on the top of the leg support 6 or during the operation. There is no need to support the patient's legs manually, which makes the adjustment more convenient. During the adjustment, the gravity is borne by the first screw 3 and the first fixed block 4. Compared with the adjustment method of fixing with bolts, the contact area is large, so it is not easy to be damaged, thereby improving the service life.

Claims

1. An orthopedic traction frame, comprising two frames (1), wherein a first sliding sleeve (2) and a second sliding sleeve (11) are sleeved on the frame (1), and locking components are arranged on the first sliding sleeve (2) and the second sliding sleeve (11), a leg support (6) is arranged above the first sliding sleeve (2), a first adjustment mechanism is arranged between the leg support (6) and the first sliding sleeve (2), a fixing plate (7) is vertically arranged above the second sliding sleeve (11), a binding component is arranged on one side of the fixing plate (7), and a second adjustment mechanism is arranged between the second sliding sleeve (11) and the fixing plate (7); Features: The first adjustment mechanism comprises a first fixing block (4) horizontally fixed to the side wall of the first sliding sleeve (2), the first fixing block (4) being provided with a first threaded hole communicating with each other from top to bottom, a first screw rod (3) being arranged in the first threaded hole and threadedly matched with the first screw rod (3), a fixing rod (18) independent of the first screw rod (3) being vertically arranged at the top of the first screw rod (3), the top of the fixing rod (18) being hinged to the bottom of the leg support (6), and a first adjustment component for adjusting the inclination angle of the leg support (6) being arranged between the side wall of the fixing rod (18) and the bottom of the leg support (6); A first linkage assembly is provided between the first screw rod (3) and the fixed rod (18), and the first linkage assembly is used to connect the first screw rod (3) and the fixed rod (18) and enable the first screw rod (3) to rotate independently.

2. The orthopedic traction frame according to claim 1, characterized in that: The first adjustment component comprises a second screw rod (23), a first sleeve (24) threadedly matched with the second screw rod (23) is sleeved on the second screw rod (23), and one end of the second screw rod (23) is hinged to the side wall of the fixing rod (18) and swings up and down; A partition plate (27) is fixed to one end of the first sleeve (24) beyond the second screw rod (23); a connecting column (25) is vertically fixed to the side of the partition plate (27) away from the first sleeve (24); a connecting pipe (26) is independently sleeved on the connecting column (25); a first bearing is installed between the connecting pipe (26) and the connecting column (25); and one end of the connecting pipe (26) is hinged to the bottom of the leg support (6).

3. The orthopedic traction frame according to claim 2, characterized in that: The first linkage assembly comprises a fixing column (5) vertically fixed to the top of the first screw rod (3), the top of the fixing column (5) is provided with a first groove for inserting the bottom end of the fixing rod (18), the bottom end of the fixing rod (18) is located in the first groove and a second limit block (21) is horizontally fixed thereto, and the edge of the second limit block (21) exceeds the side wall of the fixing rod (18); A first limiting block (20) for blocking the second limiting block (21) is arranged in the first groove above the second limiting block (21), and a baffle (19) for preventing the first limiting block (20) from detaching is fixed at the notch of the first groove; A connecting block (16) having an annular structure is independently sleeved on the fixing rod (18) above the baffle (19), a fixing pipe (14) is independently sleeved on the outer side of the connecting block (16), and the fixing pipe (14) is threadedly matched with the upper half of the fixing column (5), and a connecting assembly is provided between the fixing pipe (14) and the connecting block (16) to enable the connecting block (16) to rotate freely; A plurality of first connecting rods (17) are vertically fixed to the top of the first limiting block (20), and a first through hole for the top end of the first connecting rod (17) to pass through is provided on the baffle plate (19). The top end of the first connecting rod (17) passes through the first through hole and is fixed to the bottom of the connecting block (16).

4. The orthopedic traction frame according to claim 3, characterized in that: The diameter of the first screw rod (3) is smaller than the diameter of the fixing column (5).

5. The orthopedic traction frame according to claim 4, characterized in that: The connection assembly comprises a second bearing, which is installed between the connection block (16) and the fixed tube (14), and the top end of the fixed tube (14) is flush with the top end of the connection block (16).

6. The orthopedic traction frame according to claim 5, characterized in that: A movable block (12) is independently arranged in the first groove below the second limiting block (21); a second fixed block (15) is horizontally fixed in the first groove between the movable block (12) and the second limiting block (21); a sphere (22) is independently arranged on the top of the movable block (12); and a second groove for the sphere (22) to be inserted and freely rotated is opened on the top of the movable block (12); The second fixed block (15) is provided with a second through hole for the ball (22) to pass through, a second connecting rod (13) is vertically fixed to the top of the edge of the movable block (12), the second fixed block (15) is provided with a third through hole for the top end of the second connecting rod (13) to pass through, and the top end of the second connecting rod (13) passes through the third through hole and is fixed to the first limit block (20).

7. The orthopedic traction frame according to claim 1 or 6, characterized in that: The second adjustment mechanism comprises a second sleeve (9) arranged horizontally, a third screw (8) threadedly matched with the second sleeve (9) is arranged inside the second sleeve (9), one end of the third screw (8) passes through the second sleeve (9) and is fixed to the fixing plate (7), a third sleeve (10) is independently sleeved on the outer side of the second sleeve (9), and a fixing component for fixing the third sleeve (10) to the second sleeve (9) is arranged on the third sleeve (10); A first fixing rod is vertically arranged at the bottom of the third sleeve (10), the first fixing rod is hinged to the bottom of the third sleeve (10), and a second adjustment component for adjusting the tilt angle of the third sleeve (10) is arranged between the first fixing rod and the bottom of the third sleeve (10); A third fixing block is horizontally fixed to the side wall of the second sliding sleeve (11), and a second threaded hole communicating with each other from top to bottom is opened on the third fixing block. A fourth screw rod threadably matched with the fourth screw rod is arranged in the second threaded hole, and a second linkage assembly is arranged between the fourth screw rod and the first fixing rod, and the second linkage assembly is used to connect the fourth screw rod with the first fixing rod and enable the fourth screw rod to rotate independently.

8. The orthopedic traction frame according to claim 7, characterized in that: The outer wall of the third sleeve (10) is a rectangular structure, and a disc is fixed to one end of the third screw rod (8) away from the fixing plate (7).

9. The orthopedic traction frame according to claim 8, characterized in that: The fixing assembly comprises two nuts (28), the length of the third sleeve (10) is smaller than the length of the second sleeve (9), the outer side walls at both ends of the second sleeve (9) are provided with external threads threadedly matched with the nuts (28), the two nuts (28) are respectively located at the two ends of the second sleeve (9), and the inner diameter of the third sleeve (10) is smaller than the outer diameter of the nuts (28).

10. The orthopedic traction frame according to claim 9, characterized in that: A third bearing is installed between the third sleeve (10) and the second sleeve (9).

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