Leg fracture fixing device and using method thereof

Abstract

The leg fracture fixing device comprises two arc-shaped plates, a plurality of extending plates are movably arranged at the two ends of each arc-shaped plate, a plurality of first side sliding grooves used in cooperation with the extending plates are formed in the two ends of each arc-shaped plate, and a containing groove is formed in the position, close to an opening, of the inner wall of each first side sliding groove; the end, away from the extension plate, of the abutting plate is rotationally provided with a lead screw, and the end, away from the extension plate, of the lead screw penetrates out of the arc-shaped plate in a threaded mode and is fixedly provided with a hand wheel. In the using process, each extension plate is matched with the two arc-shaped plates to limit the position of the leg fracture, and due to the fact that certain distances exist between the extension plates, air can make direct contact with the skin, the stuffiness feeling is small, and the using experience feeling is good.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a leg fracture fixation device and a use method thereof. Background Art

[0002] A fracture refers to the destruction of the integrity or interruption of the continuity of a bone. When the force borne by the bone exceeds the maximum strength it can withstand, a fracture occurs. Fractures are more common in children and the elderly, but also occur occasionally in young and middle-aged people.

[0003] According to the patent document CN111407493A, a fixation device for leg fractures is disclosed, which includes a first fixing plate, a second fixing plate, an adjustment belt and a close-fitting plate; the first fixing plate and the second fixing plate are movably connected by an axle pin; fasteners are provided at both ends of the axle pin; an adjustment belt is provided at one end of the first fixing plate; a limit hole and an anti-drop buckle are provided on the adjustment belt; and a limit buckle and an anti-drop belt are provided at one end of the second fixing plate. The present invention solves the problem that the existing leg fixation device cannot adjust the binding force and has poor adaptability through the first fixing plate, the second fixing plate, the adjustment belt, the limit buckle, the hollow tube, the massage stick, etc., improves the adjustability and adaptability of the leg fracture fixation device, and adds the function of applying cold and hot compresses to the fracture site and the function of massaging the leg muscles.

[0004] The above-mentioned fixation device for leg fractures has certain defects during use. For example, in order to limit the fracture position, the fixation device usually designs the first fixing plate and the second fixing plate to be longer to ensure the limitation of the leg fracture position and the surrounding position of the fracture. Although this form has a larger area covered and fixed by the first fixing plate and the second fixing plate, and has better limitation and protection for the fracture position, it will cover more skin around the leg fracture position, resulting in a large area of ​​air blockage between the fixation device and the skin, and the user experience is average. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art: The existing fixation device will design the first fixation plate and the second fixation plate to be longer to ensure the limitation of the leg fracture site and the surrounding positions of the fracture, but will cover more surrounding positions of the leg fracture site, resulting in a large area of ​​air blockage between the fixation device and the skin, and the user experience is average.

[0006] A leg fracture fixation device and a use method thereof are proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A leg fracture fixation device comprises two arc-shaped plates, each of which has a plurality of extension plates movably arranged at both ends of the arc-shaped plates, a plurality of side slide grooves used in conjunction with the extension plates are provided at both ends of each arc-shaped plate, a placement groove is provided on the inner wall of each side slide groove near the opening position, a resistance plate is movably arranged in the placement groove, a screw rod is rotatably arranged at one end of the resistance plate away from the extension plate, and a threaded rod is threadedly inserted into the outside of the arc-shaped plate at one end of the screw rod away from the extension plate and a hand wheel is fixed thereto.

[0008] As a further technical solution of the present invention, a through groove is provided on the outer side wall of each extension plate, a movable seat is movably arranged in the through groove, a mounting frame is fixed to one end of the movable seat close to the extension plate, a resistance wheel is rotatably arranged on the inner wall of the mounting frame, a handle is fixed to the end of the movable seat away from the extension plate, and a resistance component and a limit component are arranged between each extension plate and the corresponding movable seat.

[0009] As a further technical solution of the present invention, each of the abutment components includes a connecting plate 1 fixed on both sides of the movable seat, a connecting plate 2 is fixed on both sides of each extension plate, and a spring 1 is fixed between the connecting plates 1 and 2.

[0010] As a further technical solution of the present invention, a guide rod is fixed to one end of each connecting plate 1 close to the connecting plate 2, each guide rod passes through the corresponding connecting plate 2 and is fixed with a limiting column, and each spring 1 is movably mounted on the outer wall of the corresponding guide rod.

[0011] As a further technical solution of the present invention, each of the limit components includes a side sliding groove II opened on the side wall of the corresponding movable seat, a limit block is slidably arranged in the side sliding groove II, a plurality of springs II are fixed between the limit block and the inner wall of the side sliding groove II, and a pad block used in conjunction with the limit block is fixed on the side wall of each extension plate.

[0012] As a further technical solution of the present invention, a plurality of telescopic rods are fixed between each of the limit blocks and the second inner wall of the side slide groove, and each second spring is movably sleeved on the outer side wall of the corresponding telescopic rod.

[0013] As a further technical solution of the present invention, a plurality of mounting grooves are provided on the inner wall of each of the arc-shaped plates, a resistance column is movably arranged in each mounting groove, a fixing sleeve is fixed on the outer wall of the resistance column, a plurality of cavities for use with the corresponding fixing sleeves are provided in the arc-shaped plate, a spring three is fixed between the fixing sleeve and the cavity, one end of each resistance column away from the arc-shaped plate is arc-shaped, and a driving component for use with the corresponding resistance column is provided on each arc-shaped plate.

[0014] As a further technical solution of the present invention, each of the driving components includes friction scrapers fixed on both sides of the extension plate located in the middle position, and each arc plate is provided with a sliding groove used to cooperate with the friction scraper. The end of each friction column can be moved through the sliding groove and a friction ball is rotatably provided.

[0015] As a further technical solution of the present invention, a plurality of Velcro strips are symmetrically fixed on the outer side wall of one of the arc-shaped plates, and a plurality of buckles used in conjunction with the Velcro strips are symmetrically fixed on the outer side wall of the other arc-shaped plate.

[0016] A method for using a leg fracture fixation device, the specific operating steps of the method are: Step 1: fix two arc plates on both sides of the leg fracture position, and then pull the extension plates away from the arc plates in sequence, and cooperate with the two arc plates to limit the leg fracture position; Step 2: Release the limit fixation of the corresponding moving seat and extension plate, then pull out the moving extension plate to drive the moving seat, the mounting frame and the contact wheel to move, and during the movement of the contact wheel, roll and massage the leg skin at the contact position of the corresponding extension plate; Step three, when the patient moves the extension plate back and forth through the handle, the resistance scraper will move along with the extension plate. During the movement, the resistance scraper will contact the resistance ball, and the resistance ball will drive the resistance column and the fixed sleeve to move toward the patient's legs for resistance massage.

[0017] Beneficial effects of the present invention: 1. In the initial state, each contact plate is fixed on the extension plate by contact. The extension plate is limited and fixed. When in use, the medical staff fixes the two arc plates on both sides of the leg fracture position, and then rotates the handwheel and the screw rod counterclockwise to drive the screw rod to move the contact plate away from the extension plate, contacting the limit fixation of the extension plate at that position, and then pulls the extension plate away from the arc plate, and then rotates the handwheel and the screw rod clockwise to prompt the screw rod to move the contact plate toward the extension plate, thereby limiting and fixing the extension plate again, and then pull out the extension plates at each position in turn. After the extension plates are pulled out, they will contact the skin of the leg, thereby cooperating with the two arc plates to limit the leg fracture position. Since there is a certain distance between each extension plate, the air can directly contact the skin, the stuffiness is less, and the user experience is better.

[0018] 2. In the initial state, the limit assembly limits and fixes the movable seat. At this time, the contact wheel does not contact the patient's leg skin. At this time, the spring 1 is in a stretched state, and the spring 1 stores elastic potential energy. The patient can release the limit fixation of the corresponding movable seat according to his or her needs. At this time, the elastic potential energy stored in the spring 1 at this position is released, prompting the movable seat to move toward the extension plate, thereby driving the mounting frame and the contact wheel to move toward the patient's leg until the contact wheel contacts the patient's leg skin. Then the patient rotates the handwheel and the screw rod counterclockwise again to release the limit fixation of the extension plate at the corresponding position, and then pulls out the mobile extension plate. During the movement of the extension plate, the movable seat, the mounting frame and the contact wheel are driven to move. During the movement of the contact wheel, the leg skin at the previous contact position of the corresponding extension plate is rolled, thereby having a massage effect on the leg at this part of the leg, and avoiding the extension plate from contacting and compressing the skin and muscles at this position of the leg for a long time.

[0019] 3. When the patient moves the extension plate back and forth through the handle and massages the leg skin with the resistance wheel, the resistance scraper will move with the extension plate (the resistance scraper moves in the sliding groove). During the movement, the resistance scraper will contact the resistance ball, and the resistance ball will drive the resistance column and the fixed sleeve to move toward the patient's legs, so that the end of the resistance column can further massage and relax the patient's legs and promote recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic diagram of the connection between the extension plate and the cushion block of the present invention; Figure 4 It is a schematic diagram of the internal structure of the through slot of the present invention; Figure 5 It is a schematic diagram of the internal structure of the side slide groove 1 of the present invention; Figure 6 It is a schematic diagram of the internal structure of the side slide groove 2 of the present invention; Figure 7 It is a schematic diagram of the internal structure of the installation slot of the present invention; Figure 8 It is a schematic diagram of the connection between the conflict ball and the conflict column of the present invention; Fig. 9 It is a schematic diagram of the connection between the extension plate and the abutting scraper of the present invention.

[0021] In the figure: 1. arc plate; 2. extension plate; 3. side slide groove 1; 4. placement groove; 5. contact plate; 6. screw rod; 7. hand wheel; 8. through groove; 9. moving seat; 10. mounting frame; 11. contact wheel; 12. handle; 13. connecting plate 1; 14. connecting plate 2; 15. spring 1; 16. guide rod; 17. limit column; 18. side slide groove 2; 19. limit block; 20. spring 2; 21. telescopic rod; 22. mounting groove; 23. contact column; 24. fixing sleeve; 25. cavity; 26. spring 3; 27. contact scraper; 28. contact ball; 29. ​​magic stick; 30. buckle; 31. pad. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0023] Reference Figure 1-Figure 9 A leg fracture fixation device comprises two arc-shaped plates 1, a plurality of extension plates 2 are movably provided at both ends of each arc-shaped plate 1, a plurality of side slide grooves 3 for cooperating with the extension plates 2 are provided at both ends of each arc-shaped plate 1, a placement groove 4 is provided on the inner wall of each side slide groove 3 and near the opening position, a resistance plate 5 is movably provided in the placement groove 4, a screw rod 6 is rotatably provided at one end of the resistance plate 5 away from the extension plate 2, and a screw rod 6 is threadedly penetrated to the outside of the arc-shaped plate 1 at one end of the screw rod 6 away from the extension plate 2 and fixed with a hand wheel 7.

[0024] Reference Figure 1 When the hand wheel 7 and the screw rod 6 are in use, the medical staff will fix the two arc plates 1 on both sides of the leg fracture position, and then rotate the hand wheel 7 and the screw rod 6 counterclockwise to drive the screw rod 6 to move the arc plate 5 away from the extension plate 2, contact the limit fixation of the extension plate 2 at that position, and then pull the extension plate 2 in the direction away from the arc plate 1, and then rotate the hand wheel 7 and the screw rod 6 clockwise to prompt the screw rod 6 to move the arc plate 5 towards the extension plate 2, so as to limit and fix the extension plate 2 again, and then pull out the extension plate 2 at each position in turn. After the extension plate 2 is pulled out, the extension plate 2 will contact the skin of the leg, so as to cooperate with the two arc plates 1 to limit the leg fracture position. Since there is a certain distance between each extension plate 2, air can directly contact the skin, so the stuffiness is small and the user experience is good.

[0025] Reference Figure 3 and Figure 4A through groove 8 is provided on the outer wall of each extension plate 2, and a movable seat 9 is movably arranged in the through groove 8. A mounting frame 10 is fixed to the end of the movable seat 9 close to the extension plate 2, and a resistance wheel 11 is rotatably arranged on the inner wall of the mounting frame 10. A handle 12 is fixed to the end of the movable seat 9 away from the extension plate 2, and a resistance component and a limit component are arranged between each extension plate 2 and the corresponding movable seat 9.

[0026] Reference Figure 4 Each abutting assembly includes a connecting plate 13 fixed on both sides of the moving seat 9, a connecting plate 2 14 is fixed on both sides of each extension plate 2, and a spring 15 is fixed between the connecting plate 13 and the connecting plate 2 14.

[0027] Reference Figure 4 A guide rod 16 is fixed to one end of each connecting plate 13 close to the connecting plate 2 14 , each guide rod 16 passes through the corresponding connecting plate 2 and is fixed with a limiting column 17 , and each spring 15 is movably sleeved on the outer side wall of the corresponding guide rod 16 .

[0028] Reference Figure 2 and Figure 4 In the initial state, the limiting component limits and fixes the movable seat 9. At this time, the contact wheel 11 does not contact the patient's leg skin. At this time, the spring 15 is in a stretched state. The spring 15 stores elastic potential energy. The patient can release the limit fixation of the corresponding movable seat 9 according to his or her needs. At this time, the elastic potential energy stored in the spring 15 at this position is released, prompting the movable seat 9 to move toward the extension plate 2, thereby driving the mounting frame 10 and the contact wheel 11 to move toward the patient's leg until the contact wheel 11 contacts the patient's leg skin. Then the patient rotates the hand wheel 7 and the screw rod 6 counterclockwise again to release the limit fixation of the extension plate 2 at the corresponding position, and then pulls and moves the extension plate 2. During the movement of the extension plate 2, the movable seat 9, the mounting frame 10 and the contact wheel 11 are driven to move. During the movement of the contact wheel 11, the leg skin at the previous contact position of the corresponding extension plate 2 is rolled, thereby having a massage effect on the leg at this part of the position, and avoiding the extension plate 2 from contacting and compressing the skin and muscles at this position of the leg for a long time.

[0029] Reference Figure 3 , Figure 4 and Figure 6 Each limiting assembly includes a side slide groove 18 opened on the side wall of the corresponding moving seat 9, a limiting block 19 is slidably arranged in the side slide groove 18, a plurality of springs 20 are fixed between the limiting block 19 and the inner wall of the side slide groove 18, and a pad 31 used in conjunction with the limiting block 19 is fixed on the side wall of each extension plate 2.

[0030] A plurality of telescopic rods 21 are fixed between each limit block 19 and the inner wall of the second side slide groove 18 , and each second spring 20 is movably sleeved on the outer side wall of the corresponding telescopic rod 21 .

[0031] Reference Figure 3 , Figure 4 and Figure 6 In the initial state, the abutment wheel 11 is not in contact with the patient's leg skin. At this time, the limit block 19 has not entered the through groove 8, and the limit block 19 is stuck by the cushion block 31 and cannot enter the through groove 8. When the abutment wheel 11 needs to contact the patient's leg skin, the patient can pinch the limit block 19 with his fingers to move the limit block 19 toward the side slide groove 18. During this process, each spring 20 is squeezed and contracted to store elastic potential energy. When the limit block 19 moves into the side slide groove 18, the cushion block 31 will not hinder the movement of the limit block 19. At this time, the moving seat 9 moves into the through groove 8 under the action of the elastic force of the spring 15 until the limit block 19 also enters the through groove 8.

[0032] Reference Figure 3 , Figure 4 and Figure 6 When the resistance wheel 11 needs to be moved away from the patient's leg skin, it is only necessary to pull the handle 12 in the direction away from the extension plate 2, thereby driving the movable seat 9, the mounting frame 10 and the resistance wheel 11 to move until the limit block 19 is away from the through slot 8 and the cushion block 31. At this time, the limit block 19 is urged to move away from the side slide groove 18 under the action of the elastic potential energy of the spring 20. When the patient releases the handle 12, the limit block 19 cannot enter the through slot 8 again due to the obstruction of the cushion block 31, thereby limiting and fixing the movable seat 9.

[0033] Reference Figure 1 and Figure 7 A plurality of mounting grooves 22 are provided on the inner wall of each arc-shaped plate 1, and a resistance column 23 is movably provided in each mounting groove 22. A fixing sleeve 24 is fixed on the outer wall of the resistance column 23. A plurality of cavities 25 for cooperating with the corresponding fixing sleeves 24 are provided in the arc-shaped plate 1, and a spring 26 is fixed between the fixing sleeve 24 and the cavity 25. The end of each resistance column 23 away from the arc-shaped plate 1 is arc-shaped, and a driving component for cooperating with the corresponding resistance column 23 is provided on each arc-shaped plate 1.

[0034] Reference Figure 8 and Fig. 9 Each driving assembly includes a friction scraper 27 fixed on both sides of the extension plate 2 located in the middle position. A sliding groove for cooperating with the friction scraper 27 is opened in each arc plate 1. The end of each friction column 23 is movable and penetrates into the sliding groove and is rotatably provided with a friction ball 28.

[0035] When in use, when the extension plate 2 is in the shortest state or the longest state, the abutting scraper 27 will not contact the abutting ball 28 .

[0036] Reference Figure 7 and Fig. 9 When the patient moves the extension plate 2 back and forth through the handle 12 and massages the leg skin with the resistance wheel 11, the resistance scraper 27 will move with the extension plate 2 (the resistance scraper 27 moves in the sliding groove). During the movement, the resistance scraper 27 will contact the resistance ball 28, and the resistance ball 28 will drive the resistance column 23 and the fixed sleeve 24 to move toward the patient's legs, so that the end of the resistance column 23 can further massage and relax the patient's legs and promote recovery.

[0037] When the resistance column 23 and the fixed sleeve 24 move toward the patient's legs, they will squeeze the spring three 26. The spring three 26 is squeezed and contracted to store elastic potential energy. When the resistance scraper 27 is not in contact with the resistance ball 28, the resistance column 23 and the fixed sleeve 24 are moved away from the patient's leg skin under the action of the elastic potential energy of the spring three 26.

[0038] The abutment posts 23 are distributed around the fracture site and are spaced a certain distance from the fracture site to avoid secondary damage to the fractured part.

[0039] Reference Figure 1 and Figure 2 A plurality of magic tapes 29 are symmetrically fixed on the outer side wall of one of the arc-shaped plates 1 , and a plurality of buckles 30 used in conjunction with the magic tapes 29 are symmetrically fixed on the outer side wall of the other arc-shaped plate 1 .

[0040] Through the cooperation of the Velcro 29 and the buckle 30, the two arc-shaped plates 1 can be conveniently mounted and fixed on the patient's legs.

[0041] A method for using a leg fracture fixation device, the specific operating steps of the method are: Step 1: fix two arc plates 1 on both sides of the leg fracture position, and then pull the extension plate 2 away from the arc plates 1 in sequence, and cooperate with the two arc plates 1 to limit the leg fracture position; Step 2: Release the limit fixation of the corresponding movable seat 9 and the extension plate 2, then pull the movable extension plate 2, drive the movable seat 9, the mounting frame 10 and the contact wheel 11 to move, and the contact wheel 11 rolls and massages the leg skin at the contact position of the corresponding extension plate 2 during the movement; Step three, when the patient moves the extension plate 2 back and forth through the handle 12, the resistance scraper 27 will move along with the extension plate 2. During the movement, the resistance scraper 27 will contact the resistance ball 28, and the resistance ball 28 will drive the resistance column 23 and the fixed sleeve 24 to move toward the patient's legs for resistance massage.

[0042] When the present invention is used, refer to Figure 1 When the hand wheel 7 and the screw rod 6 are in use, the medical staff fixes the two arc plates 1 on both sides of the leg fracture position, and then rotates the hand wheel 7 and the screw rod 6 counterclockwise, thereby driving the screw rod 6 to move the arc plate 5 away from the extension plate 2, contacting the limit fixation of the extension plate 2 at this position, and then pulls the extension plate 2 in the direction away from the arc plate 1, and then rotates the hand wheel 7 and the screw rod 6 clockwise, prompting the screw rod 6 to move the arc plate 5 towards the extension plate 2, thereby limiting and fixing the extension plate 2 again, and then pull out the extension plate 2 at each position in turn. After the extension plate 2 is pulled out, the extension plate 2 will contact the skin of the leg, thereby cooperating with the two arc plates 1 to limit the leg fracture position. Since there is a certain distance between each extension plate 2, air can directly contact the skin, the stuffiness is small, and the user experience is good. Reference Figure 2 and Figure 4 , in the initial state, the limiting component limits and fixes the movable seat 9, at which time the contact wheel 11 does not contact the patient's leg skin, and the spring 15 is in a stretched state at this time. The spring 15 stores elastic potential energy, and the patient can release the limit fixation of the corresponding movable seat 9 according to his or her needs. At this time, the elastic potential energy stored in the spring 15 at this position is released, prompting the movable seat 9 to move toward the extension plate 2, thereby driving the mounting frame 10 and the contact wheel 11 to move toward the patient's leg until the contact wheel 11 contacts the patient's leg skin, and then the patient rotates the hand wheel 7 and the screw rod 6 counterclockwise again to release the limit fixation of the extension plate 2 at the corresponding position, and then pulls and moves the extension plate 2. During the movement of the extension plate 2, the movable seat 9, the mounting frame 10 and the contact wheel 11 are driven to move. During the movement of the contact wheel 11, the leg skin at the previous contact position of the corresponding extension plate 2 is rolled, thereby having a massage effect on the leg at this part of the position, and avoiding the extension plate 2 from contacting and compressing the skin and muscles at this position of the leg for a long time; Reference Figure 7 and Fig. 9 When the patient moves the extension plate 2 back and forth through the handle 12 and massages the leg skin with the resistance wheel 11, the resistance scraper 27 will move with the extension plate 2 (the resistance scraper 27 moves in the sliding groove). During the movement, the resistance scraper 27 will contact the resistance ball 28, and the resistance ball 28 will drive the resistance column 23 and the fixed sleeve 24 to move toward the patient's legs, so that the end of the resistance column 23 can further massage and relax the patient's legs and promote recovery.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A leg fracture fixation device, comprising two arc-shaped plates (1), characterized in that: A plurality of extension plates (2) are movably arranged at both ends of each of the arc-shaped plates (1), a plurality of side slide grooves (3) for use with the extension plates (2) are opened at both ends of each of the arc-shaped plates (1), a placement groove (4) is opened on the inner wall of each side slide groove (3) and near the opening position, a resistance plate (5) is movably arranged in the placement groove (4), a screw rod (6) is rotatably arranged at one end of the resistance plate (5) away from the extension plate (2), and a hand wheel (7) is fixed to one end of the screw rod (6) away from the extension plate (2) through a thread extending through the outside of the arc-shaped plate (1) at which the hand wheel (7) is fixed.

2. A leg fracture fixation device according to claim 1, characterized in that: A through slot (8) is provided on the outer wall of each extension plate (2), a movable seat (9) is movably arranged in the through slot (8), a mounting frame (10) is fixed to one end of the movable seat (9) close to the extension plate (2), a resistance wheel (11) is rotatably arranged on the inner wall of the mounting frame (10), a handle (12) is fixed to one end of the movable seat (9) away from the extension plate (2), and a resistance component and a limit component are arranged between each extension plate (2) and the corresponding movable seat (9).

3. A leg fracture fixation device according to claim 2, characterized in that: Each of the abutment components comprises a connecting plate 1 (13) fixed on both sides of the movable seat (9), a connecting plate 2 (14) is fixed on both sides of each extension plate (2), and a spring 1 (15) is fixed between the connecting plate 1 (13) and the connecting plate 2 (14).

4. A leg fracture fixation device according to claim 3, characterized in that: A guide rod (16) is fixed to one end of each connecting plate 1 (13) close to the connecting plate 2 (14); each guide rod (16) passes through the corresponding connecting plate 2 and is fixed with a limiting column (17); each spring 1 (15) is movably sleeved on the outer side wall of the corresponding guide rod (16).

5. A leg fracture fixation device according to claim 2, characterized in that: Each of the limiter assemblies comprises a side slide groove (18) formed on a side wall of a corresponding movable seat (9), a limiter block (19) being slidably arranged in the side slide groove (18), a plurality of springs (20) being fixed between the limiter block (19) and the inner wall of the side slide groove (18), and a cushion block (31) for use with the limiter block (19) being fixed on the side wall of each extension plate (2).

6. A leg fracture fixation device according to claim 5, characterized in that: A plurality of telescopic rods (21) are fixed between each of the limit blocks (19) and the inner wall of the second side slide groove (18), and each second spring (20) is movably sleeved on the outer side wall of the corresponding telescopic rod (21).

7. A leg fracture fixation device according to claim 1, characterized in that: A plurality of mounting grooves (22) are provided on the inner wall of each of the arc-shaped plates (1), a resisting column (23) is movably provided in each of the mounting grooves (22), a fixing sleeve (24) is fixed on the outer wall of the resisting column (23), a plurality of cavities (25) for use with the corresponding fixing sleeves (24) are provided in the arc-shaped plate (1), a spring (26) is fixed between the fixing sleeve (24) and the cavity (25), one end of each resisting column (23) away from the arc-shaped plate (1) is arc-shaped, and a driving component for use with the corresponding resisting column (23) is provided on each of the arc-shaped plates (1).

8. A leg fracture fixation device according to claim 7, characterized in that: Each of the driving components comprises a friction scraper (27) fixed on both sides of the extension plate (2) located in the middle, a sliding groove for cooperating with the friction scraper (27) is provided in each arc-shaped plate (1), and a friction ball (28) is movably inserted into the sliding groove and rotatably arranged at the end of each friction column (23).

9. A leg fracture fixation device according to claim 1, characterized in that: A plurality of Velcro strips (29) are symmetrically fixed on the outer side wall of one of the arc-shaped plates (1), and a plurality of buckles (30) used in conjunction with the Velcro strips (29) are symmetrically fixed on the outer side wall of the other arc-shaped plate (1).

10. A method for using a leg fracture fixation device, characterized in that: The specific steps are as follows: Step 1: fix the two arc plates (1) on both sides of the leg fracture position, and then pull the extension plate (2) in a direction away from the arc plates (1) in turn, so as to limit the leg fracture position in cooperation with the two arc plates (1); Step 2, releasing the position limit fixation of the corresponding movable seat (9) and the extension plate (2), then pulling out the movable extension plate (2), driving the movable seat (9), the mounting frame (10) and the contact wheel (11) to move, and during the movement of the contact wheel (11), rolling and massaging the leg skin at the position where the corresponding extension plate (2) previously contacted; Step three, when the patient moves the extension plate (2) back and forth by means of the handle (12), the contact scraper (27) moves along with the extension plate (2), and during the movement, the contact scraper (27) contacts the contact ball (28), and the contact ball (28) drives the contact column (23) and the fixing sleeve (24) to move in a direction close to the patient's legs for contact massage.

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