A closed reduction device and method for clavicle fracture

Abstract

The present invention discloses a closed reduction device and method for clavicle fracture, comprising a main frame, a fixing mechanism and an adjusting mechanism respectively arranged at two ends of the main frame, and a reducing mechanism movably arranged on the main frame; the adjusting mechanism is slidably connected to the main frame and used to fix the distal end of the clavicle on the affected side, the fixing mechanism is fixedly connected to the main frame and used to fix the proximal end of the clavicle on the healthy side, the adjusting mechanism slides to reduce the distal end of the clavicle on the affected side, and the reducing mechanism is used to correct the position of the proximal bone block on the affected side so that it can dock and reduce with the distal end of the clavicle on the affected side. The two ends of the reducing device are respectively set up at the proximal end of the clavicle on the healthy side and the distal end of the clavicle on the affected side, and the proximal bone block on the affected side is no longer used as the supporting point for setting up the entire device. The displacement of the distal end of the clavicle on the affected side can be pulled by the adjusting mechanism to restore it to its original position, and the proximal bone block on the affected side can also be arbitrarily adjusted by the reducing mechanism so that it can be reduced and docked with the distal end of the clavicle on the affected side, thereby improving the reduction accuracy and treatment effect.

Description

Technical Field

[0001] The present invention belongs to the field of medical devices, and in particular relates to a closed reduction device and method for clavicle fracture. Background Art

[0002] Clavicle fracture is a common clinical case. After the middle part of the clavicle is fractured, it breaks into two parts: the distal clavicle on the affected side and the proximal clavicle on the affected side. The proximal clavicle is the end of the clavicle facing the front of the human body, and the distal clavicle is the end of the clavicle facing the back of the human body. Clinically, it is usually treated by surgical incision of the skin tissue and internal fixation with a reduction plate (hereinafter referred to as open reduction). Open reduction requires a transverse incision of about 10 cm along the entire length of the clavicle. After healing, a long scar is usually left, which affects the appearance. In addition, the triangular cutaneous nerve that controls the skin sensation on the chest crosses the incision in the surgical area. During surgery, it is inevitable to cut the crossing nerve, which causes abnormal sensation in the chest of the patient after surgery.

[0003] Due to the above-mentioned shortcomings of open reduction, a reduction device has been developed to perform minimally invasive treatment on the clavicle. Without surgically cutting the skin tissue, the proximal bone block on the affected side and the distal end of the clavicle on the affected side are closed and reduced. However, due to the traction of the muscles around the clavicle, the distal end of the clavicle on the affected side will be displaced, resulting in the phenomenon of staggered shortening of the proximal bone block and the distal end of the clavicle on the affected side. The existing reduction device is a cross-bridge structure, the two ends of which are respectively fixed to the proximal bone block on the affected side and the distal end of the clavicle on the affected side, and then the height of the proximal bone block on the affected side is adjusted by the correction structure located on the middle bridge body to complete the reduction. Since one end of the cross-bridge structure of this reduction device is fixed on the proximal bone block on the affected side, the proximal bone block on the affected side must be used as a supporting structure, and the height, horizontal position and angle of the proximal bone block on the affected side must be adjusted for reduction, resulting in the cross-bridge structure being used to fix one end of the proximal bone block on the affected side, which will limit the degree of freedom of the proximal bone block on the affected side, affecting the reduction accuracy and treatment effect.

[0004] Therefore, there is an urgent need for a reduction device that can provide the proximal bone block on the affected side with a higher degree of freedom and improve the reduction accuracy. Summary of the invention

[0005] The purpose of the present invention is to provide a closed reduction device for clavicle fracture, one end of which is fixed to the proximal end of the healthy clavicle, and the other end is fixed to the distal end of the affected clavicle, so that the reduction mechanism can freely adjust the proximal bone block of the affected side in multiple directions, the reduction docking is more flexible, and the reduction accuracy is improved.

[0006] The present invention is achieved through the following technical solutions:

[0007] A closed reduction device for clavicle fractures comprises a main frame, a fixing mechanism and an adjusting mechanism respectively arranged at two ends of the main frame, and a reducing mechanism movably arranged on the main frame; the adjusting mechanism is slidably connected to the main frame and used to fix the distal end of the clavicle on the affected side, the fixing mechanism is fixedly connected to the main frame and used to fix the proximal end of the clavicle on the healthy side, the adjusting mechanism slides to reduce the distal end of the clavicle on the affected side, and the reducing mechanism is used to correct the position of the proximal bone block on the affected side so that it can dock and reduce with the distal end of the clavicle on the affected side.

[0008] Through the above scheme, the present invention at least achieves the following technical effects:

[0009] Compared with the existing resetting device that fixes one end of its cross-bridge structure to the proximal bone block on the affected side, the fixing mechanism of the resetting device of the present invention is fixed to the proximal end of the healthy clavicle as one end support point of the cross-bridge structure, thereby removing the restriction on the proximal bone block on the affected side. The adjusting mechanism is then fixed to the distal end of the affected clavicle, which can not only stabilize the cross-bridge structure to provide a mobile platform for the resetting mechanism, but also achieve the function of pulling the distal end of the affected clavicle to reset. The method of pulling the distal end of the affected clavicle to reset is as follows: the fixing mechanism is supported by the proximal end of the healthy clavicle to keep its position unchanged, driving the adjusting mechanism to slide along the main frame and drive the distal end of the affected clavicle fixedly connected to the adjusting mechanism to move, thereby achieving the resetting effect.

[0010] After the fixation mechanism, main frame and adjustment mechanism have repositioned the distal end of the affected clavicle, the pulling effect of the muscles has not disappeared. Therefore, when repositioning the proximal bone block on the affected side, the supporting effect of the above structures on the distal end of the affected clavicle must be maintained simultaneously. After the repositioning mechanism has repositioned the proximal bone block on the affected side with the distal end of the affected clavicle, the two can be connected and stabilized by inserting an intramedullary nail, connecting a repositioning plate or using other medical devices, and then the repositioning device can be removed.

[0011] Preferably, the fixing mechanism includes a first Kirschner wire and a limit screw; the end of the main frame is provided with a mounting hole and a limit hole which are interconnected, one end of the first Kirschner wire is arranged in the mounting hole, the limit screw is implanted through the limit hole and limits and fixes the first Kirschner wire, and the other end of the first Kirschner wire punctures and fixes the proximal end of the healthy clavicle.

[0012] Preferably, a plurality of spare installation holes and spare limiting holes are also provided at the end of the main frame, and the plurality of spare limiting holes are connected to the plurality of spare installation holes in a one-to-one correspondence.

[0013] Preferably, the main frame is provided with a slide groove; the adjustment mechanism and the reset mechanism are both slidably arranged in the slide groove.

[0014] Preferably, the adjustment mechanism includes an adjustment slider, a second Kirschner wire and an adjustment bolt; the adjustment slider is slidably disposed in a slide groove, one end of the second Kirschner wire is fixed to the adjustment slider, and the other end punctures and fixes the distal end of the clavicle on the affected side, and the adjustment bolt passes through the main frame at the end of the slide groove and is connected to the adjustment slider.

[0015] Preferably, the resetting mechanism includes a height adjustment component, a horizontal displacement component and a pressure head; the height adjustment component is slidably arranged in a slide groove, the horizontal displacement component is installed at the bottom of the height adjustment component, and the pressure head is installed at the bottom of the horizontal displacement component and is used to limit and fix the proximal bone block on the affected side.

[0016] Preferably, the height adjustment assembly includes a movable slider, a screw rod and an adjusting knob; the screw rod longitudinally penetrates the movable slider, the adjusting knob is sleeved on the screw rod, and rotating the adjusting knob causes the screw rod to produce telescopic movement relative to the movable slider.

[0017] Preferably, the horizontal displacement assembly includes a horizontal frame and a moving part; the horizontal frame is hinged to the bottom end of the screw rod, a strip-shaped through groove is provided on the horizontal frame, the moving part is slidably arranged in the strip-shaped through groove, and the pressure head is installed at the bottom of the moving part.

[0018] Preferably, the movable part includes a reset slider, a connecting column and a fine-tuning bolt; the reset slider is slidably arranged in a strip-shaped through slot, the fine-tuning bolt passes through the horizontal frame at the end of the strip-shaped through slot and is connected to the reset slider, one end of the connecting column is fixed to the bottom of the reset slider, and the other end is fixedly connected to the pressure head.

[0019] The purpose of the present invention is also to provide a closed reduction method for clavicle fractures. The above-mentioned closed reduction device for clavicle fractures is used to treat clavicle fractures, which can not only reduce the distal end of the affected clavicle, but also connect the proximal bone block of the affected side to the distal end of the affected clavicle to complete corrective reduction.

[0020] A closed reduction method for clavicle fractures, comprising the closed reduction device for clavicle fractures in the above scheme, and further comprising the following steps:

[0021] S1: Use the fixing mechanism of the reduction device to fix the proximal end of the healthy clavicle as a supporting point, and then fix the adjusting mechanism to the distal end of the affected clavicle, so that the main frame serves as the supporting body between the proximal end of the healthy clavicle and the distal end of the affected clavicle;

[0022] S2: Adjust the position of the reduction mechanism so that it presses on the proximal bone block on the affected side to limit and fix the proximal bone block on the affected side;

[0023] S3: Manipulate the adjustment mechanism to move and reset the distal end of the affected clavicle;

[0024] S4: Operate the reduction mechanism to adjust the height, horizontal position and angle of the proximal bone block on the affected side so that it can be docked and reduced with the distal end of the clavicle on the affected side.

[0025] Through the above scheme, the present invention at least achieves the following technical effects:

[0026] This reduction method uses the above reduction device to reduce the clavicle without cutting the skin tissue. When installing the reduction device, the proximal end of the healthy clavicle is used as a fixed support point, and the distal end of the affected clavicle is used as an adjustable support point. The two support points set up the main frame to form a cross-bridge structure, so that the reduction mechanism moves on the main frame to flexibly adjust the position of the proximal bone block on the affected side. Increasing the degree of freedom of the proximal bone block on the affected side can improve the reduction accuracy and treatment effect.

[0027] During the reduction operation, the distal end of the affected clavicle that has been dislocated by muscle traction is first pulled back to its normal position, and then the position of the proximal bone block on the affected side is adjusted so that it is docked with the distal end of the affected clavicle. After reduction, the position, length, and shape of the affected clavicle are the same as before the fracture.

[0028] The beneficial effects of the present invention are:

[0029] The two ends of the reduction device are respectively mounted on the proximal end of the healthy clavicle and the distal end of the affected clavicle, and the proximal bone block on the affected side is no longer used as the support point for the entire device. The distal end of the affected clavicle can be pulled to return to its original position by the adjustment mechanism, and the height, horizontal position and angle of the proximal bone block on the affected side can be arbitrarily adjusted by the reduction mechanism to reduce and dock with the distal end of the affected clavicle, thereby improving the reduction accuracy and treatment effect. At the same time, the reduction device does not require cutting skin tissue for surgery, avoiding scars and damaging subcutaneous nerves. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of two Kirschner wires fixed to the clavicle provided in one embodiment of the present invention.

[0031] Figure 2 This is a schematic structural diagram of a clavicle fracture closed reduction device provided in one embodiment of the present invention installed on the clavicle, and the horizontal displacement component is in a retracted state.

[0032] Figure 3 This is a schematic structural diagram of a clavicle fracture closed reduction device provided in one embodiment of the present invention installed on the clavicle, at which time the horizontal displacement component is unfolded and the proximal bone block on the affected side is limited and fixed.

[0033] Figure 4 It is a schematic diagram of the state in which the adjustment mechanism provided in one embodiment of the present invention stretches and repositions the distal end of the affected clavicle.

[0034] Figure 5It is a schematic diagram of the state in which the height adjustment assembly provided in one embodiment of the present invention presses down and resets the proximal bone block on the affected side.

[0035] Figure 6 This is a schematic diagram of the state before the horizontal displacement assembly provided in one embodiment of the present invention performs lateral reduction on the proximal bone block on the affected side.

[0036] Figure 7 It is a schematic diagram of the state after the horizontal displacement assembly provided in one embodiment of the present invention performs lateral reduction on the proximal bone block on the affected side.

[0037] Figure 8 The present invention is a schematic diagram of a closed reduction device for clavicle fracture provided in one embodiment of the present invention performing closed reduction of the affected clavicle.

[0038] legend:

[0039] 1 Main frame; 2 Fixing mechanism; 3 Adjusting mechanism; 4 Resetting mechanism; 5 Distal end of clavicle on the affected side; 6 Healthy clavicle; 7 Proximal bone block on the affected side;

[0040] 11 mounting hole; 12 limiting hole; 13 slide groove;

[0041] 21 first Kirschner wire; 22 limiting screw;

[0042] 31 adjusting slider; 32 second Kirschner wire; 33 adjusting bolt;

[0043] 41 height adjustment component; 42 horizontal displacement component; 43 pressure head;

[0044] 61 proximal end of clavicle on healthy side;

[0045] 411 moving slider; 412 screw rod; 413 adjusting knob;

[0046] 421 horizontal frame; 422 moving part; 423 strip-shaped through groove; 424 reset slider; 425 connecting column; 426 fine-tuning bolt. DETAILED DESCRIPTION

[0047] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0048] Embodiment 1:

[0049] This embodiment provides a closed reduction device for clavicle fractures. Figure 2-Figure 8As shown, it includes a main frame 1, a fixing mechanism 2, an adjusting mechanism 3 and a resetting mechanism 4; wherein the fixing mechanism 2 is used to fix the proximal end 61 of the healthy clavicle, the adjusting mechanism 3 is used to fix the distal end 5 of the affected clavicle, and the resetting mechanism 4 is used to fix the broken and detached proximal bone block 7 of the affected side. By changing the distance between the adjusting mechanism 3 and the fixing mechanism 2, the distal end 5 of the affected clavicle is driven to change the distance between the proximal end 61 of the healthy clavicle, making room for the proximal bone block 7 of the affected side, and at the same time achieving the effect of restoring the distal end 5 of the affected clavicle to its original position.

[0050] The main frame 1 is composed of a long strip of plate, and a slide groove 13 is provided along its length. At two ends of the main frame 1 in the length direction, one end is provided with three mounting holes 11 and three limiting holes 12 for the installation and fixation of the fixing mechanism 2, and the end surface of the other end is provided with a threaded hole connected to the slide groove 13 for the operation and positioning of the adjustment mechanism 3.

[0051] The three mounting holes 11 are connected to the three limiting holes 12 in a one-to-one correspondence, and each mounting hole 11 passes through the main frame 1 from top to bottom, and the corresponding limiting hole 12 is horizontally connected to the mounting hole 11. Selecting different mounting holes 11 can change the relative position of the fixing mechanism 2 and the main frame 1, thereby adapting to the clavicle length of patients with different body shapes.

[0052] The fixing mechanism 2 is composed of a first Kirschner wire 21 and a limit screw 22; select any mounting hole 11 on the main frame 1 to insert one end of the first Kirschner wire 21, and then insert the limit screw 22 into the limit hole 12 corresponding to the mounting hole 11, and the limit screw 22 extends into the mounting hole 11 to tighten the first Kirschner wire 21, so as to achieve the fixing effect of the first Kirschner wire 21. The other end of the first Kirschner wire 21 is inserted into the proximal end 61 of the healthy clavicle, and the reduction device is connected and fixed to the proximal end 61 of the healthy clavicle, which serves as a stable support point for reducing the distal end 5 of the affected clavicle.

[0053] The adjustment mechanism 3 is composed of an adjustment slider 31, a second Kirschner wire 32 and an adjustment bolt 33; the adjustment slider 31 slides freely in the slide groove 13 of the main frame 1, one end of the second Kirschner wire 32 is fixed to the adjustment slider 31, and the other end is pierced to fix the distal end 5 of the affected clavicle, so as to establish a position correspondence between the affected clavicle and the adjustment slider 31. The adjustment bolt 33 extends into the slide groove 13 through a threaded hole opened on the end face of the main frame 1 and is connected to the adjustment slider 31. The adjustment bolt 33 and the threaded hole of the main frame 1 form a thread pair. By rotating the adjustment bolt 33 in the forward or reverse direction, the adjustment bolt 33 is reciprocated along the axial direction of the threaded hole of the main frame 1, thereby driving the adjustment slider 31 to slide in the slide groove 13, so as to achieve the effect of changing the position of the distal end 5 of the affected clavicle by rotating the adjustment bolt 33, until the distal end 5 of the affected clavicle is moved to the correct position and the support effect is maintained to stabilize the distal end 5 of the affected clavicle at that position.

[0054] The resetting mechanism 4 is composed of a height adjustment component 41, a horizontal displacement component 42 and a pressure head 43; the height adjustment component 41 slides in the slide groove 13 of the main frame 1 to provide a displacement effect along the slide groove 13 direction, the horizontal displacement component 42 is installed at the bottom of the height adjustment component 41 and provides a lateral displacement effect, and the pressure head 43 is installed at the bottom of the horizontal displacement component 42 to limit and fix the broken proximal bone block 7 on the affected side, and the height adjustment component 41 can also adjust the height difference between the horizontal displacement component 42 and the main frame 1. The pressure head 43 can be displaced forward and backward, left and right, and up and down along the length direction of the main frame 1, and multiple degrees of freedom ensure that the pressure head 43 can be flexibly manipulated to accurately close and reset the proximal bone block 7 on the affected side and the distal end 5 of the clavicle on the affected side.

[0055] The height adjustment component 41 is composed of a movable slider 411, a screw rod 412 and an adjusting knob 413; the movable slider 411 is slidably arranged in the slide groove 13 of the main frame 1, and the movable slider 411 is provided with a longitudinal threaded hole, the screw rod 412 passes through the threaded hole of the movable slider 411 and forms a threaded pair, and the adjusting knob 413 is sleeved on the screw rod 412. Rotating the adjusting knob 413 rotates the screw rod 412, so that the screw rod 412 reciprocates along the axial direction of the threaded hole. The horizontal displacement component 42 is installed at the bottom end of the screw rod 412, and can produce a forward and backward displacement effect with the sliding of the movable slider 411, and can also produce an up and down displacement effect with the reciprocating motion of the screw rod 412.

[0056] The horizontal displacement assembly 42 is composed of a horizontal frame 421 and a moving member 422; the horizontal frame 421 is provided with a strip through groove 423 for the moving member 422 to slide therein, and the end surface of the horizontal frame 421 is also provided with a threaded hole connected to the strip through groove 423. The moving member 422 is composed of a reset slider 424, a fine-tuning bolt 426 and a connecting column 425; the reset slider 424 is slidably arranged in the strip through groove 423, the fine-tuning bolt 426 extends into the strip through groove 423 along the threaded hole on the end surface of the horizontal frame 421 and is connected to the reset slider 424, the fine-tuning bolt 426 and the threaded hole of the horizontal frame 421 form a threaded pair, and the reset slider 424 slides in the strip through groove 423 by rotating the fine-tuning bolt 426. The pressure head 43 is installed on the reset slider 424 through the connecting column 425, and a position correspondence is established between the proximal bone block 7 on the affected side fixed by the pressure head 43 and the reset slider 424, so that the position of the proximal bone block 7 on the affected side can be adjusted by rotating the fine-tuning bolt 426 to change the position of the reset slider 424.

[0057] It is worth mentioning that the horizontal frame 421 and the screw rod 412 are connected in a hinged manner, so that the horizontal frame 421 can rotate in the horizontal plane. When the horizontal frame 421 rotates to a suitable angle, the horizontal frame 421 and the screw rod 412 can be fixed by a nut or other simple limiting structure. This rotating structure is conducive to adjusting the posture of the proximal bone block 7 on the affected side, so that it can be reset more accurately. At the same time, the reset device can be folded into a flat structure after use for easy storage and carrying.

[0058] Embodiment 2:

[0059] This embodiment provides a closed reduction method for clavicle fractures, which uses a closed reduction device for clavicle fractures proposed in Embodiment 1 and implements the following steps:

[0060] Step 1: If Figure 1 As shown, a first Kirschner wire 21 is implanted in the proximal end 61 of the healthy clavicle, and a second Kirschner wire 32 is implanted in the distal end 5 of the affected clavicle.

[0061] Step 2: If Figure 2 As shown, the top end of the first Kirschner wire 21 is inserted into the mounting hole 11 of the main frame 1 and fixed with a limit screw 22, the top end of the second Kirschner wire 32 is fixed to the adjustment slider 31, and the resetting device is mounted on the two Kirschner wires.

[0062] Step 3: If Figure 3 As shown, the height adjustment component 41 in the reduction mechanism 4 is pushed along the slide groove 13 of the main frame 1, so that the reduction mechanism 4 is moved as a whole to above the broken proximal bone block 7 on the affected side, the horizontal displacement component 42 is rotated and the fine-tuning bolt 426 is operated to accurately correct the position of the pressure head 43, and then the adjustment knob 413 is operated to move the screw 412 downward, so that the pressure head 43 is buckled on the surface of the proximal bone block 7 on the affected side to form a limiting fixing effect.

[0063] Step 4: If Figure 4 As shown, the adjusting bolt 33 in the adjusting mechanism 3 is manipulated so that the adjusting slider 31 drives the second Kirschner wire 32 and the distal end of the clavicle 5 on the affected side away from the first Kirschner wire 21 , stretching the distal end of the clavicle 5 on the affected side to restore it.

[0064] Step 5: If Figure 5 As shown, the adjusting knob 413 in the height adjusting assembly 41 is manipulated again, so that the screw rod 412 drives the horizontal displacement assembly 42, the pressing head 43 and the affected proximal bone block 7 to move downward as a whole, and the upwardly misplaced affected proximal bone block 7 is pressed downward to reset.

[0065] Step 6: If Figure 6 and Figure 7As shown, the fine-tuning bolt 426 in the horizontal displacement assembly 42 is manipulated again, so that the reset slider 424 drives the pressure head 43 and the proximal bone block 7 on the affected side to move laterally, so that the fracture of the proximal bone block 7 on the affected side and the fracture of the distal end 5 of the clavicle on the affected side are closed and reset.

[0066] The various technical features in the above implementation modes can be combined arbitrarily as long as there is no conflict or contradiction between the combinations of features. However, due to space limitations, they are not described one by one.

[0067] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A closed reduction device for clavicle fracture, characterized in that: The invention comprises a main frame, a fixing mechanism and an adjusting mechanism respectively arranged at two ends of the main frame, and a resetting mechanism movably arranged on the main frame; the adjusting mechanism is slidably connected with the main frame and is used to fix the distal end of the clavicle on the affected side; the fixing mechanism is fixedly connected with the main frame and is used to fix the proximal end of the clavicle on the healthy side; the adjusting mechanism slides to reset the distal end of the clavicle on the affected side; the resetting mechanism is used to correct the position of the proximal bone block on the affected side so that it can be docked and reset with the distal end of the clavicle on the affected side; the fixing mechanism comprises a first Kirschner wire and a limiting screw; the end of the main frame is provided with a mounting hole and a limiting hole interconnected with each other, one end of the first Kirschner wire is arranged in the mounting hole, and the limiting screw is implanted through the limiting hole and limits the first Kirschner wire The other end of the first Kirschner wire punctures and fixes the proximal end of the healthy clavicle; the main frame is provided with a slide groove; the adjustment mechanism and the reset mechanism are both slidably arranged in the slide groove; the reset mechanism includes a height adjustment component, a horizontal displacement component and a pressure head; the height adjustment component is slidably arranged in the slide groove, the horizontal displacement component is installed at the bottom of the height adjustment component, and the pressure head is installed at the bottom of the horizontal displacement component and is used to limit and fix the proximal bone block on the affected side; the height adjustment component includes a moving slider, a screw rod and an adjusting knob; the screw rod longitudinally penetrates the moving slider, the adjusting knob is sleeved on the screw rod, and the adjusting knob is rotated to make the screw rod produce telescopic movement relative to the moving slider.

2. The closed reduction device for clavicle fracture according to claim 1, characterized in that: The end of the main frame is also provided with a plurality of spare installation holes and spare limiting holes, and the plurality of spare limiting holes are connected with the plurality of spare installation holes in a one-to-one correspondence.

3. The closed reduction device for clavicle fracture according to claim 1, characterized in that: The adjustment mechanism includes an adjustment slider, a second Kirschner wire and an adjustment bolt; the adjustment slider is slidably arranged in a slide groove, one end of the second Kirschner wire is fixed to the adjustment slider, and the other end punctures and fixes the distal end of the clavicle on the affected side, and the adjustment bolt passes through the main frame at the end of the slide groove and is connected to the adjustment slider.

4. The closed reduction device for clavicle fracture according to claim 1, characterized in that: The horizontal displacement assembly comprises a horizontal frame and a moving part; the horizontal frame is hinged at the bottom end of the screw rod, a strip through slot is provided on the horizontal frame, the moving part is slidably arranged in the strip through slot, and the pressure head is installed at the bottom of the moving part.

5. The closed reduction device for clavicle fracture according to claim 4, characterized in that: The moving part includes a reset slider, a connecting column and a fine-tuning bolt; the reset slider is slidably arranged in a strip-shaped through slot, the fine-tuning bolt passes through the horizontal frame at the end of the strip-shaped through slot and is connected to the reset slider, one end of the connecting column is fixed to the bottom of the reset slider, and the other end is fixedly connected to the pressure head.

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