Fracture reduction device convenient to adjust

Abstract

The fracture reduction device comprises a first base, a traction needle and a second base, the first base is provided with a limiting sleeve and an axial rotating mechanism, the axial rotating mechanism is used for adjusting axial rotation of the limiting sleeve, the second base is provided with a supporting sleeve, and the supporting sleeve is used for supporting the limiting sleeve. An axial traction mechanism and a displacement adjusting mechanism are arranged between the first base and the second base. After the two traction needles are respectively arranged at the near end and the far end of a limb fracture part, the two traction needles can be respectively arranged on the limiting sleeve and the supporting sleeve, so that the limb of a patient is fixed, and then axial traction and rotary adjustment can be respectively carried out through the axial traction mechanism and the axial rotating mechanism; meanwhile, displacement adjustment in the horizontal direction and the vertical direction can be conducted through the horizontal displacement assembly and the vertical displacement assembly respectively, multi-dimensional adjustment can be achieved through mutual cooperation of the adjustment modes, and three-dimensional splicing reduction during fracture treatment is assisted.

Description

Technical Field

[0001] The present invention relates to the technical field of fracture reducers, in particular to a fracture reducer which is easy to adjust. Background Art

[0002] A fracture reducer is a medical device used to help restore the correct anatomical alignment of fracture ends. It is usually used in surgical or non-surgical reduction procedures. Its core function is to reduce fracture displacement, restore the normal force line of the bones, and create conditions for subsequent fixation (such as steel plates, screws, external fixators, etc.).

[0003] The core goal of fracture reduction is to restore the anatomical alignment and biomechanical function of the bones, and multi-dimensional adjustment capability is the key technology to ensure the realization of this goal. That is, the ability to simultaneously control the spatial displacement of multiple degrees of freedom, such as axial (compression / distraction), coronal plane (inversion / valgus), sagittal plane (flexion / extension), rotation (internal rotation / external rotation) and translation (front and back / left and right), and use multi-dimensional linkage adjustment to achieve three-dimensional reduction of bone blocks. This technology has many values in clinical practice, such as precise reduction, reduction of iatrogenic injuries and improvement of surgical efficiency.

[0004] A search revealed a Chinese invention patent with publication number CN110833448B, which discloses a fracture traction reduction device comprising an active adjustment mechanism and a passive adjustment mechanism. The adjustment ends of the two adjustment mechanisms are fixedly mounted with Kirschner wires 1 and 2, which are respectively fixed at the distal and proximal ends of the fracture site. The active and / or passive adjustment mechanisms adjust the Kirschner wires 1 and 2 to align the distal and proximal ends of the fracture site. Movement and angle adjustment align the suture positions at the distal and proximal ends of the fracture, thereby achieving traction reduction, docking, and fixation. This application utilizes two adjustment mechanisms to separately manipulate the movement and deflection of the two Kirschner wires to achieve alignment between the distal and proximal ends of the fracture site. However, since fracture displacement is three-dimensional, in addition to axial movement and deflection, lateral displacement may also occur. Therefore, this device struggles to provide sufficient traction reduction assistance for fracture treatment. Summary of the Invention

[0005] In view of the above-mentioned prior art, the present invention provides a fracture reducer that is easy to adjust, and the main technical problem to be solved is how to provide sufficient traction reduction auxiliary effect for fracture treatment.

[0006] To achieve the above-mentioned purpose, the technical solution of the embodiment of the present invention is implemented as follows:

[0007] A fracture reducer that is easy to adjust includes a first base, a traction needle and a second base. The first base is provided with a limit sleeve and an axial rotation mechanism. The axial rotation mechanism is used to adjust the axial rotation of the limit sleeve. The second base is provided with a support sleeve. An axial traction mechanism and a displacement adjustment mechanism are provided between the first base and the second base. The axial traction mechanism adjusts the axial movement of the limit sleeve by controlling the distance between the first base and the second base. The displacement adjustment mechanism includes a horizontal displacement component and a vertical displacement component for adjusting the deflection of the limit sleeve. The first base and the second base fix the fractured limb through the traction needle, and the limit sleeve pulls and reduces the fractured limb through its own axial rotation, axial movement and deflection adjustment.

[0008] Furthermore, a sleeve is fixedly connected at both ends of one side of the second base, and a guide groove is provided at the top of the two sleeves close to each other. The two sleeves are slidably connected to guide rods at the two guide grooves respectively, and a connecting plate is fixedly connected at one end between the two guide rods, and the other ends of the two guide rods are fixedly connected to the same fixed plate, and a first threaded through hole is provided in the middle of the plate body of the connecting plate.

[0009] Furthermore, the axial traction mechanism includes a screw threadedly connected to the connecting plate at a first threaded through hole, a first through hole is opened in the middle of the second base, the screw is rotatably connected to the second base at the first through hole, one end of the screw is fixedly connected to a first knob, and connecting rods are fixedly connected at both ends of one side of the first base, one end of the two connecting rods is fixedly connected to the same movable plate, and the fixed plate and the movable plate are rotatably connected through a universal joint.

[0010] Furthermore, the horizontal displacement assembly includes two first bolts, and second threaded holes are opened on both sides of the plate body of the fixed plate. The two first bolts are threadedly connected to the fixed plate at the two second threaded holes respectively. A connecting plate is fixedly connected to the middle part of the top of the fixed plate, and a third threaded hole is opened on the connecting plate. The vertical displacement assembly includes a second bolt threadedly connected to the connecting plate at the third threaded hole.

[0011] Furthermore, a side plate is fixedly connected to the middle of the top of the movable plate, a second through hole is opened on the side plate, a second bolt passes through the side plate at the second through hole, the diameter of the second bolt is smaller than the diameter of the second through hole, a rubber ring is fixedly connected to the side plate at the second through hole, and the outside of the second bolt is fixedly connected to baffles on both sides of the side plate, and the diameter of the baffle is larger than the diameter of the second through hole.

[0012] Furthermore, rectangular openings are provided on both sides of the top of the first base, and the limit sleeve is slidably connected to the first base at the two rectangular openings. The limit sleeve includes a ring body and a plurality of worm gear teeth evenly arranged on the outside of the ring body. The axial rotation mechanism includes a worm rotatably connected to the inner wall of one side of the first base, and the worm is engaged with the worm gear teeth. A third through hole is provided on the other side of the first base, and one end of the worm extends to the outside of the first base at the third through hole. A third knob is fixedly connected to one end of the worm outside the first base.

[0013] Furthermore, a cavity is opened at the inner bottom end of the sleeve, and the sleeve is rotatably connected to a bidirectional threaded rod at the inner wall of one side of the cavity. The second base and one side of the sleeve are both provided with a fourth through hole at the other side of the cavity. One end of the bidirectional threaded rod extends to the outside of the second base and the sleeve at the two fourth through holes, and the end of the bidirectional threaded rod outside the cavity is fixedly connected to a second knob.

[0014] Furthermore, the two ends of the outer side of the rod body of the bidirectional threaded rod in the cavity are threadedly connected with threaded sleeves, the bottom ends of the two threaded sleeves are rotatably connected to support plates, and strip openings are opened on both sides of the bottom end of the sleeve. The sleeve is rotatably connected to the bottom plates at the two strip openings, and the bottom ends of the two support plates are rotatably connected to the two bottom plates respectively, and the two support plates are arranged in an "eight" shape.

[0015] Furthermore, fixing piles are fixedly connected on both sides of the top of the ring body and the support sleeve. The fixing piles include a cover shell and a chassis that are rotatably connected. A lock buckle is rotatably connected to one side of the cover shell, and a lock body that is compatible with the lock buckle is fixedly connected to one side of the chassis. Grooves are provided at the bottom end of the cover shell and the top end of the chassis. A rubber sheath is fixedly connected to the cover shell and the chassis at the grooves.

[0016] Furthermore, a capsule made of medical-grade silicone material is fixedly connected to the inner bottom ends of the ring body and the support sleeve.

[0017] The beneficial effects of the present invention are:

[0018] 1. After placing the two traction needles into the proximal and distal ends of the limb fracture site respectively, this device can place the two on the limiting sleeve and the support sleeve respectively, so as to fix the patient's limb. Thereafter, the axial traction mechanism and the axial rotation mechanism can be used to perform axial traction and rotation adjustment respectively. At the same time, the horizontal displacement component and the vertical displacement component can also perform displacement adjustment in the horizontal and vertical directions respectively. Through the mutual cooperation of the above adjustment methods, multi-dimensional adjustment can be achieved to assist in three-dimensional splicing reduction during fracture treatment; this device can continuously provide traction effect during fracture treatment to facilitate bone reduction operation, so it can provide sufficient traction reduction auxiliary effect.

[0019] 2. This device is equipped with a base plate. After the patient's limb is fixed on the limiting sleeve and the support sleeve, the two base plates can be driven to deflect downward simultaneously by adjusting the bidirectional threaded rod. Therefore, the base plate can be used to support the sleeve shell, and then the limiting sleeve and the support sleeve can be adjusted to lift the patient's limb, thereby further facilitating the fracture treatment process.

[0020] 3. By setting up capsules on both the limiting sleeve and the supporting sleeve, after the patient's limbs are fixed on the two, physiological saline or sterile water can be injected into the capsule to make it expand. The expanded capsule can lift and cushion the patient's limbs to reduce the mechanical damage to the bones caused by traction, and further reduce the possibility of displacement between the two, thereby ensuring the smoothness and safety of the treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of an easily adjustable fracture reducer in Example 1 of the present application;

[0022] Figure 2 This is a side sectional view of a first base of an easily adjustable fracture reducer in Example 1 of the present application;

[0023] Figure 3 This is an exploded view of a housing of a fracture reducer that is easily adjustable in Example 1 of the present application;

[0024] Figure 4 This is an exploded view of a fixing post of a fracture reducer that is easily adjustable in Example 1 of the present application;

[0025] Figure 5 This is a three-dimensional diagram of an easily adjustable fracture reducer in Example 2 of the present application.

[0026] Description of Figure Numbers:

[0027] First base 1, limiting sleeve 2, ring body 201, worm gear 202, fixed pile 3, cover shell 301, lock buckle 3011, chassis 302, lock body 3021, sheath 303, traction needle 4, support sleeve 5, first knob 6, second base 7, second knob 8, connecting plate 9, sleeve shell 10, guide groove 1001, cavity 1002, screw 11, bottom plate 12, connecting rod 13, movable plate 1301, fixed plate 1302, first bolt 1303, connecting plate 1304, second bolt 1305, side plate 1306, baffle 1307, third knob 14, worm 15, bidirectional threaded rod 16, support plate 17, threaded sleeve 18, capsule 19. DETAILED DESCRIPTION

[0028] The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention pertains. The terms used in the present invention description are for the purpose of describing specific embodiments only and are not intended to limit the present invention.

[0029] Example 1

[0030] Refer to the attached Figure 1-4 The present application provides a fracture reducer that is easy to adjust, including a first base 1, a traction needle 4 and a second base 7. The first base 1 is provided with a limit sleeve 2 and an axial rotation mechanism, the axial rotation mechanism is used to adjust the axial rotation of the limit sleeve 2, and the second base 7 is provided with a support sleeve 5. An axial traction mechanism and a displacement adjustment mechanism are provided between the first base 1 and the second base 7. The axial traction mechanism adjusts the axial movement of the limit sleeve 2 by controlling the distance between the first base 1 and the second base 7. The displacement adjustment mechanism includes a horizontal displacement component and a vertical displacement component for adjusting the deflection of the limit sleeve 2. The first base 1 and the second base 7 fix the fractured limb through the traction needle 4, and the limit sleeve 2 pulls and reduces the fractured limb through its own axial rotation, axial movement and deflection adjustment.

[0031] Preferably, the first base 1 and the second base 7 are both made of 316 stainless steel, which can control the manufacturing cost while ensuring structural strength; the limit sleeve 2, the support sleeve 5 and the connecting plate 9, the screw 11, the movable plate 1301, the fixed plate 1302, the first bolt 1303, the connecting plate 1304, the second bolt 1305, the side plate 1306 and the baffle 1307 between the two shells 10 are made of high-strength carbon material, which can ensure strength while avoiding obstruction of the C-arm intraoperative fluoroscopy.

[0032] Preferably, the high-strength carbon material is a non-metallic carbon fiber composite material with medical-grade PEEK as the matrix and T700SC carbon fiber as the reinforcement, with a longitudinal tensile strength of 1,200 MPa, an interlaminar shear strength of 80 MPa, and an elongation at break of 1.8%.

[0033] Preferably, the ring body 201 and the support sleeve 5 are fixedly connected to fixed piles 3 on both sides of the top, and the fixed piles 3 include a cover shell 301 and a chassis 302 that are rotatably connected. A lock buckle 3011 is rotatably connected to one side of the cover shell 301, and a lock body 3021 that is compatible with the lock buckle 3011 is fixedly connected to one side of the chassis 302. Grooves are provided at the bottom end of the cover shell 301 and the top end of the chassis 302, and a rubber sheath 303 is fixedly connected to the cover shell 301 and the chassis 302 at the grooves.

[0034] When treating a fracture, the cover shell 301 can be pulled apart from the chassis 302 after opening the lock buckle 3011, and then the two traction needles 4 can be surgically inserted into the proximal and distal ends of the fracture site of the patient's limb, and then the two traction needles 4 can be placed on the fixing piles 3 on the limiting sleeve 2 and the supporting sleeve 5, respectively. Then, the cover shell 301 can be covered on the chassis 302 again, and the lock buckle 3011 can be buckled on the outside of the lock body 3021, so that the cover shell 301 and the chassis 302 can be combined and connected, and the traction needles 4 can be fixed. Therefore, in this case, the patient's limb can be fixed on the inner side of the limiting sleeve 2 and the supporting sleeve 5.

[0035] Preferably, the axial traction mechanism includes a screw 11 threadedly connected to the connecting plate 9 at a first threaded through hole, a first through hole is opened in the middle of the second base 7, the screw 11 is rotatably connected to the second base 7 at the first through hole, one end of the screw 11 is fixedly connected to the first knob 6, and connecting rods 13 are fixedly connected at both ends of one side of the first base 1, and one end of the two connecting rods 13 is fixedly connected to the same movable plate 1301, and the fixed plate 1302 is rotatably connected to the movable plate 1301 through a universal joint.

[0036] When using this device to assist in fracture treatment, twisting the first knob 6 can drive the screw 11 to rotate, thereby driving the connecting plate 9 to move in the horizontal direction. The connecting plate 9 drives the first base 1 to move through the guide rod 901, so the distance between the limit sleeve 2 and the support sleeve 5 can be adjusted, thereby achieving the effect of axial traction.

[0037] Preferably, rectangular openings are provided on both sides of the top of the first base 1, and the limit sleeve 2 is slidingly connected to the first base 1 at the two rectangular openings. The limit sleeve 2 includes a ring body 201 and a plurality of worm gear teeth 202 evenly arranged on the outside of the ring body 201. The axial rotation mechanism includes a worm 15 rotatably connected to the inner wall of one side of the first base 1, and the worm 15 is engaged with the worm gear teeth 202. A third through hole is provided on the other side of the first base 1, and one end of the worm 15 extends to the outside of the first base 1 at the third through hole. A third knob 14 is fixedly connected to one end of the worm 15 outside the first base 1.

[0038] Secondly, by twisting the third knob 14, the worm 15 can be driven to rotate. The worm 15 can rotate the ring body 201 by engaging with the worm gear teeth 202, thereby adjusting the rotation of the limit sleeve 2, thereby achieving axial rotation adjustment. That is, the limit sleeve 2 is a semi-circular worm gear structure, which can achieve reverse self-locking transmission with the worm 15;

[0039] Preferably, both ends of one side of the second base 7 are fixedly connected with a shell 10, and the tops of the two shells 10 close to each other are provided with guide grooves 1001, and the two shells 10 are slidingly connected with guide rods 901 at the two guide grooves 1001 respectively, and a connecting plate 9 is fixedly connected at one end between the two guide rods 901, and the other ends of the two guide rods 901 are fixedly connected to the same fixed plate 1302, and a first threaded through hole is provided in the middle of the plate body of the connecting plate 9.

[0040] Preferably, the horizontal displacement assembly includes two first bolts 1303, and second threaded holes are provided on both sides of the plate body of the fixed plate 1302. The two first bolts 1303 are threadedly connected to the fixed plate 1302 at the two second threaded holes respectively. A connecting plate 1304 is fixedly connected to the middle of the top of the fixed plate 1302, and a third threaded hole is provided on the connecting plate 1304. The vertical displacement assembly includes a second bolt 1305 threadedly connected to the connecting plate 1304 at the third threaded hole.

[0041] At the same time, by twisting the first bolt 1303, its forward or backward rotation can be adjusted. Therefore, by adjusting the two first bolts 1303 to advance and retreat respectively, the movable plate 1301 can be deflected in the horizontal direction. The movable plate 1301 drives the first base 1 to deflect through the connecting rod 13, and the limit sleeve 2 can be adjusted for horizontal displacement.

[0042] Preferably, a side plate 1306 is fixedly connected to the middle of the top of the movable plate 1301, and a second through hole is opened on the side plate 1306. The second bolt 1305 passes through the side plate 1306 at the second through hole. The diameter of the second bolt 1305 is smaller than the diameter of the second through hole. A rubber ring is fixedly connected to the side plate 1306 at the second through hole. The outside of the second bolt 1305 is fixedly connected to baffles 1307 on both sides of the side plate 1306. The diameter of the baffle 1307 is larger than the diameter of the second through hole. Since the diameter of the second through hole is larger than the diameter of the side plate 1306, the baffle 1307 has space for deflection outside the second bolt 1305, but at the same time it will limit its deflection of too large an angle, and the presence of the rubber ring can also play a buffering and padding effect between the second bolt 1305 and the side plate 1306 to avoid mechanical damage between the two.

[0043] By twisting the second bolt 1305 to adjust its forward or backward movement, the two baffles 1307 can be used to push the side plates 1306 respectively, so that the movable plate 1301 deflects in the vertical direction. The movable plate 1301 drives the first base 1 to deflect through the connecting rod 13, and the limit sleeve 2 can be shifted and adjusted in the vertical direction.

[0044] By coordinating the different adjustment methods of the limit sleeve 2, multi-dimensional adjustment can be achieved, so the fracture site can be pulled in the opposite direction to facilitate the bone reduction operation. In this process, since the diameter of the through groove on the side plate 1306 is larger than the diameter of the second bolt 1305, the second bolt 1305 has a range of motion in the through groove, and the deflection of the movable plate 1301 in the horizontal and vertical directions will not be affected by this.

[0045] Preferably, a cavity 1002 is opened at the inner bottom end of the shell 10, and the shell 10 is rotatably connected to the inner wall of one side of the cavity 1002 with a bidirectional threaded rod 16, and the second base 7 and one side of the shell 10 are both opened with fourth through holes on the other side of the cavity 1002, and one end of the bidirectional threaded rod 16 extends to the outside of the second base 7 and the shell 10 at the two fourth through holes, and the end of the bidirectional threaded rod 16 outside the cavity 1002 is fixedly connected to the second knob 8.

[0046] Preferably, the bidirectional threaded rod 16 is threadedly connected to threaded sleeves 18 at both ends of the outside of the rod body in the cavity 1002, and the bottom ends of the two threaded sleeves 18 are rotatably connected to support plates 17. Rows of openings are opened on both sides of the bottom end of the casing 10, and the casing 10 is rotatably connected to the bottom plates 12 at the two row openings. The bottom ends of the two support plates 17 are rotatably connected to the two bottom plates 12 respectively, and the two support plates 17 are arranged in an "eight" shape.

[0047] In addition, after the patient's limbs are fixed on the limiting sleeve 2 and the supporting sleeve 5, the second knob 8 can be twisted to drive the bidirectional threaded rod 16 to rotate, thereby driving the two threaded sleeves 18 to move simultaneously in opposite directions in the horizontal direction. The movement of the threaded sleeve 18 will push the bottom plate 12 to deflect through the support plate 17, so the downward deflection of the two bottom plates 12 can be adjusted so that the sleeve 10 can be raised, and then the height of the device supporting the patient's limbs can be adjusted to facilitate fracture treatment.

[0048] Example 2

[0049] Refer to the attached Figure 5 The present application provides an easily adjustable fracture reducer. Compared with Example 1, in order to support and cushion the patient's limbs, a capsule 19 made of medical-grade silicone material is fixedly connected to the inner bottom end of the ring body 201 and the support sleeve 5.

[0050] After the patient's limbs are fixed on the limiting sleeve 2 and the supporting sleeve 5, physiological saline or sterile water can be injected into the capsule 19 to cause it to expand. The expanded capsule 19 can then cushion and support the patient's limbs, thereby further facilitating the treatment of fractures.

[0051] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this invention should be included in the scope of protection of the present invention. The scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A fracture reducer that is easy to adjust, comprising a first base (1), a traction needle (4) and a second base (7), characterized in that: The first base (1) is provided with a limiting sleeve (2) and an axial rotation mechanism, and the axial rotation mechanism is used to adjust the axial rotation of the limiting sleeve (2). The second base (7) is provided with a supporting sleeve (5). An axial traction mechanism and a displacement adjustment mechanism are provided between the first base (1) and the second base (7). The axial traction mechanism adjusts the axial movement of the limiting sleeve (2) by controlling the distance between the first base (1) and the second base (7). The displacement adjustment mechanism includes a horizontal displacement component and a vertical displacement component for adjusting the deflection of the limiting sleeve (2). The first base (1) and the second base (7) fix the fractured limb through a traction pin (4), and the limiting sleeve (2) pulls and reduces the fractured limb through its own axial rotation, axial movement and deflection adjustment.

2. The adjustable fracture reducer according to claim 1, characterized in that: Both ends of one side of the second base (7) are fixedly connected to a sleeve (10), and the top ends of the two sleeves (10) close to each other are provided with a guide groove (1001), and the two sleeves (10) are respectively slidably connected to guide rods (901) at the two guide grooves (1001), and a connecting plate (9) is fixedly connected at one end between the two guide rods (901), and the other ends of the two guide rods (901) are fixedly connected to the same fixed plate (1302), and a first threaded through hole is provided in the middle of the plate body of the connecting plate (9).

3. The easily adjustable fracture reducer according to claim 2, characterized in that: The axial traction mechanism comprises a screw (11) threadedly connected to the connecting plate (9) at a first threaded through hole, a first through hole is opened at the middle of the second base (7), the screw (11) is rotatably connected to the second base (7) at the first through hole, one end of the screw (11) is fixedly connected to the first knob (6), both ends of one side of the first base (1) are fixedly connected to connecting rods (13), one end of the two connecting rods (13) is fixedly connected to the same movable plate (1301), and the fixed plate (1302) and the movable plate (1301) are rotatably connected via a universal joint.

4. The easily adjustable fracture reducer according to claim 3, characterized in that: The horizontal displacement assembly includes two first bolts (1303), and second threaded holes are provided on both sides of the plate body of the fixed plate (1302). The two first bolts (1303) are threadedly connected to the fixed plate (1302) at the two second threaded holes respectively. A connecting plate (1304) is fixedly connected to the middle of the top end of the fixed plate (1302), and a third threaded hole is provided on the connecting plate (1304). The vertical displacement assembly includes a second bolt (1305) threadedly connected to the connecting plate (1304) at the third threaded hole.

5. The easily adjustable fracture reducer according to claim 4, characterized in that: The movable plate (1301) is fixedly connected to a side plate (1306) at the middle of the top end, and a second through hole is opened on the side plate (1306). The second bolt (1305) passes through the side plate (1306) at the second through hole, and the diameter of the second bolt (1305) is smaller than the diameter of the second through hole. The side plate (1306) is fixedly connected to a rubber ring at the second through hole, and the outside of the second bolt (1305) is fixedly connected to baffles (1307) on both sides of the side plate (1306), and the diameter of the baffle (1307) is larger than the diameter of the second through hole.

6. The easily adjustable fracture reducer according to claim 1, characterized in that: Rectangular openings are provided on both sides of the top of the first base (1); the limiting sleeve (2) is slidably connected to the first base (1) at the two rectangular openings; the limiting sleeve (2) comprises a ring body (201) and a plurality of worm gear teeth (202) uniformly arranged on the outside of the ring body (201); the axial rotation mechanism comprises a worm (15) rotatably connected to the inner wall of one side of the first base (1); the worm (15) is meshed with the worm gear teeth (202); a third through hole is provided on the other side of the first base (1); one end of the worm (15) extends to the outside of the first base (1) at the third through hole; and a third knob (14) is fixedly connected to one end of the worm (15) outside the first base (1).

7. The easily adjustable fracture reducer according to claim 1, characterized in that: A cavity (1002) is provided at the inner bottom end of the casing (10), and the casing (10) is rotatably connected to a bidirectional threaded rod (16) at an inner wall of one side of the cavity (1002). The second base (7) and one side of the casing (10) are both provided with fourth through holes at the other side of the cavity (1002). One end of the bidirectional threaded rod (16) extends to the outside of the second base (7) and the casing (10) at the two fourth through holes, and the end of the bidirectional threaded rod (16) outside the cavity (1002) is fixedly connected to a second knob (8).

8. The easily adjustable fracture reducer according to claim 7, characterized in that: The two ends of the bidirectional threaded rod (16) in the cavity (1002) are both threadedly connected to threaded sleeves (18), the bottom ends of the two threaded sleeves (18) are both rotatably connected to support plates (17), the bottom end of the housing (10) is provided with strip openings on both sides, the housing (10) is rotatably connected to the bottom plate (12) at the two strip openings, the bottom ends of the two support plates (17) are respectively rotatably connected to the two bottom plates (12), and the two support plates (17) are arranged in an "eight" shape.

9. The easily adjustable fracture reducer according to claim 6, characterized in that: The ring body (201) and the support sleeve (5) are both fixedly connected to fixed piles (3) at both sides of the top end. The fixed piles (3) include a cover shell (301) and a chassis (302) that are rotatably connected. A lock buckle (3011) is rotatably connected to one side of the cover shell (301). A lock body (3021) that matches the lock buckle (3011) is fixedly connected to one side of the chassis (302). The bottom end of the cover shell (301) and the top end of the chassis (302) are both provided with grooves. A rubber sheath (303) is fixedly connected to both the cover shell (301) and the chassis (302) at the grooves.

10. The easily adjustable fracture reducer according to claim 6, characterized in that: The inner bottom ends of the ring body (201) and the support sleeve (5) are both fixedly connected with a capsule (19) made of medical-grade silicone material.

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