A rapid reduction external fixation device for limb fractures based on augmented reality technology

Abstract

The present invention provides a rapid reduction external fixation device for limb fractures based on augmented reality technology, which belongs to the technical field of fracture reduction and fixation devices. The limiting component includes a connecting frame and a connecting arc plate, the outer wall of the connecting frame is provided with a fixed pressure plate, the bottom of the fixed pressure plate is provided with a positioning card plate, and the connecting frame and the inner part of the connecting shaft are provided with a plurality of positioning card slots, and the positioning card plate is fixedly sleeved in the positioning card slot. By providing the reduction arc plate and the limiting component, the present invention can not only make the reduction arc plate fit the limb curved surface to avoid the existence of a gap between the reduction arc plate and the limb, but also can lock the angle between the connecting frame and the connecting arc plate under the action of the fixed pressure plate, and can set the parameters between the reduction splint and the movable splint according to the use requirements. When the fracture site is reduced, the position of the reduction splint and the movable splint with the set parameters can be used to quickly reduce the fracture site and clamp and fix the fracture site.

Description

Technical Field

[0001] The invention relates to the technical field of fracture reduction and fixation devices, and in particular to a rapid reduction and external fixation device for limb fractures based on augmented reality technology. Background Art

[0002] Limb fractures caused by severe trauma often fail to receive good fixation treatment in pre-hospital emergency treatment, leading to the occurrence of severe early complications of fractures such as hemorrhagic shock and wound infection, endangering the patient's life safety and affecting the effect of in-hospital treatment. For pre-hospital treatment of limb fractures, it is necessary to first reposition the fracture site, move the broken bones together, and use an external fixator to fix and connect the broken bones together, so as to achieve fixation and stabilization of the fracture, which in turn helps to restore the normal structure and function of the bones, promote fracture healing, and reduce the occurrence of complications.

[0003] Due to the large range of motion of the limbs, if effective fixation and bandaging cannot be performed immediately after the fracture, the injury will inevitably be aggravated. Therefore, before the injured are transported, the fracture must be treated with emergency treatment to reduce the abnormal movement of the fracture ends. When the fracture is treated with manual reduction, a steel plate or a simple splint is usually used, and the fracture site is fixed and bandaged with a bandage. It takes a long time and the steps are cumbersome. The fracture cannot be quickly reduced and fixed. When the steel plate or splint is clamped on the limb, because the surface of the limb is irregular, and the surface of the steel plate or splint is flat, when the fracture is clamped and fixed, there may be a certain gap between the steel plate or splint and the limb, causing embedded pressure on the skin and soft tissue of the affected limb. Therefore, during transportation, the injured limb may be aggravated by shaking, which may cause irreversible damage to the patient. Therefore, the present application provides a rapid reduction external fixation device for limb fractures based on augmented reality technology to meet the demand for embedded pressure on the skin and soft tissue of the affected limb. Therefore, during transportation. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a rapid reduction external fixation device for limb fractures based on augmented reality technology to solve the problem that the existing fracture reduction and fixation devices for pre-hospital emergency treatment of limb fractures cannot fit the surface of the limb when reducing and fixing the fracture, resulting in a certain gap between the steel plate or splint and the limb, causing compression of the skin and soft tissue of the affected limb. Therefore, the injured limb may be aggravated by shaking during transportation, thereby causing irreversible damage to the injured person.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A rapid reduction external fixation device for limb fractures based on augmented reality technology, comprising a C-shaped splint, a fixed splint, a reduction arc plate and a limiting component, wherein the C-shaped splint comprises a first arc plate and a second arc plate, the side walls of the first arc plate and the second arc plate are both provided with an arc-shaped connecting frame, the fixed splint is connected to the arc-shaped connecting frame, a sliding seat is slidably connected inside the fixed splint, an adjusting plate is provided at the bottom of the sliding seat, the reduction arc plate comprises a reduction splint and a movable splint, the reduction splint is provided at the bottom of the adjusting plate, and the limiting component is provided between the reduction splint and the movable splint;

[0007] The limiting component includes a connecting frame and a connecting arc plate, the connecting frame is arranged at one end of the reset splint and the movable splint, the connecting arc plate is arranged at the other end of the reset splint and the movable splint, a connecting shaft is arranged at one end of the connecting arc plate, the connecting shaft is rotatably sleeved inside the connecting frame, a fixed pressure plate is arranged on the outer wall of the connecting frame, a positioning card plate is arranged at the bottom of the fixed pressure plate, a plurality of positioning slots are arranged inside the connecting frame and the connecting shaft, and the positioning card plate is fixedly sleeved in the positioning slots.

[0008] Optionally, a limiting slide groove is provided inside the coupling shaft, a limiting slide rod is provided at the bottom of the positioning clamping plate, and the limiting slide rod is slidably sleeved inside the limiting slide groove.

[0009] Optionally, the fixed splint includes an arc-shaped plate, arc-shaped hook plates are provided at both ends of the arc-shaped plate, the arc-shaped connecting frame includes an arc-shaped connecting frame, the arc-shaped connecting frame is provided on the side walls of the first arc-shaped plate and the second arc-shaped plate, a hook groove adapted to the shape of the arc-shaped hook plate is provided between the arc-shaped connecting frame and the first arc-shaped plate, the arc-shaped hook plate is fixedly sleeved inside the hook groove, an adjustment slide groove is provided inside the arc-shaped plate, the slide seat is slidably connected inside the adjustment slide groove, and an installation card plate is provided on the top of the reset splint.

[0010] Optionally, the outer wall of the arc-shaped connecting frame is provided with a plurality of limit blocks, the interior of the arc-shaped hook plate is provided with a limit slot, the limit blocks are embedded in the limit slot, and the inner wall of the arc-shaped hook plate is provided with a weakened slot.

[0011] Optionally, a threaded sleeve is provided inside the slide seat, an adjusting screw is provided inside the threaded sleeve, the bottom of the adjusting screw is connected to the top of the adjusting plate, an installation slot is provided on the outer wall of the adjusting plate, and the installation slot is fixedly sleeved inside the installation slot.

[0012] Optionally, an arc-shaped paddle is provided on the top of the slide seat, a plurality of positioning grooves are provided inside the adjusting slide groove, and the arc-shaped paddle is fixedly sleeved inside the positioning grooves.

[0013] Optionally, a connecting plate is provided at one end of the first arc plate, a plurality of plug blocks are provided on the inner wall of the connecting plate, a plurality of slots are provided inside the second arc plate, the plug blocks are fixedly sleeved inside the slots, a limiting baffle is provided inside the second arc plate, and an elastic pressure plate is provided on the side wall of the limiting baffle.

[0014] Optionally, a rotating shaft is disposed at the other end of the first arc plate, and a rotating frame is disposed at the other end of the second arc plate, and the rotating shaft is rotatably sleeved inside the rotating frame.

[0015] Optionally, a plurality of air holes are disposed inside the first arc plate and the second arc plate, and a plurality of anti-slip spring sheets are disposed on inner walls of the first arc plate and the second arc plate.

[0016] Optionally, an elastic plate is arranged between the reset splint and the movable splint, and a plurality of anti-skid pads are arranged on the inner walls of the reset splint and the movable splint, and the anti-skid pads are made of rubber.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, by setting the resetting arc plate and the limiting component, not only can the resetting arc plate fit the curved surface of the limb and avoid a gap between the resetting arc plate and the limb, but also the fracture site can be avoided from being dislocated due to shaking during transportation, and the fracture site can be avoided from being injured again. At the same time, when the resetting arc plate fits the curved surface of the limb, under the action of the fixed pressure plate, the positioning card plate can be fixed inside the positioning card slot provided inside the connecting frame and the connecting shaft to lock the angle between the connecting frame and the connecting arc plate. The parameters between the resetting splint and the movable splint can be set according to the use requirements. When the fracture site is relocated, the fracture site can be quickly relocated and clamped with the help of the position of the resetting splint and the movable splint with set parameters.

[0019] By setting a fixed pressure plate in the limiting component, the positioning card plate can be always clamped in the positioning card slot during use, the angle between the connecting arc plate and the connecting frame can be limited, the angle between the movable splint and the reduction splint can be adjusted according to usage requirements, and the movable splint can be made to fit the surface of the limb according to the reduction and fixation requirements, thereby ensuring that the fracture site is clamped and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the external fixation device for rapid reduction of limb fractures based on augmented reality technology;

[0022] Figure 2 It is a schematic diagram of the enlarged three-dimensional structure of the fixed component;

[0023] Figure 3 for Figure 2 Schematic diagram of the cutaway three-dimensional structure;

[0024] Figure 4 An enlarged three-dimensional structural diagram for connecting parts and adjusting parts;

[0025] Figure 5 A schematic diagram of the three-dimensional structure is enlarged for adjusting the components;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the reset component from a first-view perspective;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the reset component enlarged from a second viewing angle;

[0028] Figure 8 for Figure 7 Schematic diagram of the cutaway three-dimensional structure;

[0029] Fig. 9 for Figure 8 Enlarged schematic diagram of the three-dimensional structure at point C in the middle.

[0030] [Reference Signs]

[0031] 1. C-type splint; 101. first arc plate; 102. second arc plate; 2. fixed splint; 201. arc plate; 202. arc hook plate; 203. limit card slot; 204. weakening slot; 205. adjustment slide slot; 206. positioning groove; 3. arc connecting frame; 301. arc connecting frame; 302. hook slot; 303. limit card block; 4. reset arc plate; 401. reset splint; 402. movable splint; 403. elastic plate; 404. anti-slip pad; 5. limiting component; 501. connecting frame ; 502, connecting arc plate; 503, connecting shaft; 504, fixed pressure plate; 505, positioning card plate; 506, positioning card slot; 507, limiting slide rod; 508, limiting slide slot; 6, slide seat; 7, adjustment plate; 8, arc-shaped paddle; 9, threaded sleeve; 10, adjusting screw; 11, mounting card plate; 12, connecting plate; 13, plug-in block; 14, slot; 15, limiting baffle; 16, elastic pressure plate; 17, rotating shaft; 18, rotating frame; 19, air vent; 20, anti-slip spring sheet; 21, mounting card slot.

[0032] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0033] The following is a detailed description of a limb fracture rapid reduction external fixation device based on augmented reality technology provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0034] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0035] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0036] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0037] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0038] like Figures 1 to 9 As shown, an embodiment of the present invention provides a rapid reduction external fixation device for limb fractures based on augmented reality technology, including a C-shaped splint 1, a fixed splint 2, a reduction arc plate 4 and a limiting component 5, the C-shaped splint 1 includes a first arc plate 101 and a second arc plate 102, the side walls of the first arc plate 101 and the second arc plate 102 are both provided with an arc-shaped connecting frame 3, the fixed splint 2 is connected to the arc-shaped connecting frame 3, the fixed splint 2 is internally slidably connected with a slide seat 6, the bottom of the slide seat 6 is provided with an adjustment plate 7, the reduction arc plate 4 includes a reduction splint 401 and a movable splint 402, and the reduction splint 401 is arranged at the bottom of the adjustment plate 7.

[0039] like Figures 6 to 9As shown, the limiting component 5 is arranged between the reset clamping plate 401 and the movable clamping plate 402, and the limiting component 5 includes a connecting frame 501 and a connecting arc plate 502. The connecting frame 501 is arranged at one end of the reset clamping plate 401 and the movable clamping plate 402, and the connecting arc plate 502 is arranged at the other end of the reset clamping plate 401 and the movable clamping plate 402. A connecting shaft 503 is arranged at one end of the connecting arc plate 502, and the connecting shaft 503 is rotatably sleeved inside the connecting frame 501. The outer wall of the connecting frame 501 is provided with a fixed pressing plate 504, and the bottom of the fixed pressing plate 504 A positioning card plate 505 is provided, and a plurality of positioning card slots 506 are provided inside the connection frame 501 and the connecting shaft 503. The positioning card plate 505 is fixedly sleeved in the positioning card slot 506. A limiting slide slot 508 is provided inside the connecting shaft 503. A limiting slide bar 507 is provided at the bottom of the positioning card plate 505. The limiting slide bar 507 is slidably sleeved inside the limiting slide slot 508. The connection frame 501 and the connecting arc plate 502 are provided at both ends of the reset clamp plate 401 and the movable clamp plate 402, and are arranged crosswise with each other. Moreover, the connection frame 501 is connected to the connecting shaft 503 through the connecting shaft 503. 3 is rotatably connected with the connecting arc plate 502. The connecting frame 501 and the connecting arc plate 502 are both arc-shaped. The fixed pressure plate 504 is an arc-shaped plate with certain elasticity and is made of metal. The connecting frame 501 and the connecting arc plate 502 are rotatably connected through the connecting shaft 503. At the same time, under the action of the elastic plate 403, the movable splint 402 is in contact with the surface of the limb, ensuring that the movable splint 402 and the reduction splint 401 are in contact with the surface of the limb, avoiding the gap between the reduction arc plate 4 and the limb, which causes shaking during transportation and causes re-injury to the fractured part. At the same time, under the action of the fixed pressure plate 504, the positioning card plate 505 is embedded in the positioning card groove 506 set inside the connecting frame 501 and the connecting shaft 503, and the angle between the connecting arc plate 502 and the connecting frame 501 can be locked, so that the fracture reduction parameters can be set according to the use requirements. When using the device, the fracture site can be quickly reduced with the help of the reset splint 401 and the movable splint 402 with set parameters, and the fracture site can be clamped and fixed, which is convenient for use.

[0040] like Figure 1 and Figure 4As shown, the fixed clamping plate 2 includes an arc plate 201, and arc hook plates 202 are arranged at both ends of the arc plate 201. The arc connecting frame 3 includes an arc connecting frame 301, and the arc connecting frame 301 is arranged on the side walls of the first arc plate 101 and the second arc plate 102. A hook groove 302 that matches the shape of the arc hook plate 202 is opened between the arc connecting frame 301 and the first arc plate 101, and the arc hook plate 202 is fixedly sleeved in the hook groove 30 2, the outer wall of the arc-shaped connecting frame 301 is provided with a plurality of limit blocks 303, the arc-shaped hook plate 202 is provided with a limit slot 203, the limit block 303 is embedded in the limit slot 203, the inner wall of the arc-shaped hook plate 202 is provided with a weakening groove 204, the fixed clamping plate 2 is mainly composed of the arc-shaped hook plates 202 at both ends and the arc-shaped hook plate 202 directly connected to the arc-shaped plate 201, and the arc-shaped plate 201 is an arc-shaped plate with a hollow middle. And it has a certain strength. The fixing splint 2 is hung in the hook groove 302 on the arc connecting frame 301 through the arc hook plate 202. Since the shapes of the hook groove 302 and the arc hook plate 202 are compatible with each other, when the arc hook plate 202 and the hook groove 302 are clamped together, the fixing splint 2 is installed on the arc connecting frame 301. This installation method greatly improves the efficiency of the installation of the resetting arc plate 4. Moreover, since the fixing splint 2 is an integrated structure, it is more labor-saving and efficient during installation and transportation. Moreover, since the fixing splint 2 and the arc connecting frame 3 are clamped together by the arc hook plate 202, the fixing splint 2 can slide freely on the arc connecting frame 301 after assembly, so that medical staff can adjust the position of the fixing splint 2 according to the position of the affected area, and reserve more operating space for cleaning, disinfection and subsequent bandaging work.

[0041] In addition, a limiting slot 203 is provided inside the arc-shaped hook plate 202. When the arc-shaped hook plate 202 is connected to the hook slot 302, the limiting block 303 provided on the outer wall of the arc-shaped connecting frame 301 is embedded in the limiting slot 203, so that the position of the fixed splint 2 can be limited. The position of the adjusted fixed splint 2 can be limited. When the position of the fixed splint 2 needs to be adjusted, the arc-shaped hook plate 202 is moved to deform at the weakened slot 204, so that the limiting block 303 is separated from the limiting slot 203, and then the fixed splint 2 is adjusted to slide freely on the arc-shaped connecting frame 301, so that the medical staff can adjust the position of the fixed splint 2 according to the position of the affected part.

[0042] like Figure 4 and Figure 5As shown, the arc plate 201 is provided with an adjusting slot 205 inside, the slide seat 6 is slidably connected inside the adjusting slot 205, a threaded sleeve 9 is provided inside the slide seat 6, an adjusting screw 10 is provided inside the threaded sleeve 9, the bottom of the adjusting screw 10 is connected to the top of the adjusting plate 7, an arc paddle 8 is provided on the top of the slide seat 6, a plurality of positioning grooves 206 are provided inside the adjusting slot 205, the arc paddle 8 is fixedly sleeved inside the positioning groove 206, the arc paddle 8 is arranged on the top of the slide seat 6, the two arc paddles 8 are in a mirror structure, the arc paddle 8 is an arc-shaped plate material with a certain elasticity, the arc paddle 8 can be squeezed toward the middle, and then the slide seat 6 is pushed to slide left and right inside the adjusting slot 205, and then the slide seat 6 is moved to the fracture site, and then according to the characteristics of the arc paddle 8, the arc paddle 8 is sleeved into the positioning groove 206, and the reduction arc plate 4 can be fixed to the fracture site.

[0043] like Figure 5 and Figure 6 As shown, a mounting card plate 11 is provided on the top of the reset clamp 401, and a mounting slot 21 is provided on the outer wall of the adjustment plate 7. The mounting card plate 11 is fixedly sleeved inside the mounting slot 21. The mounting card plate 11 is provided on the top of the reset clamp 401. The two mounting card plates 11 are in a mirror structure. The mounting card plate 11 is an arc-shaped plate with certain elasticity. When the reset arc plate 4 needs to be installed to the bottom of the adjustment plate 7, the characteristics of the mounting card plate 11 can be used to directly sleeve it into the mounting slot 21, and then the reset arc plate 4 and the adjustment plate 7 are connected together. This installation method is simple and convenient.

[0044] like Figure 2 and Figure 3 As shown, a connecting plate 12 is provided at one end of the first arc plate 101, and a plurality of plug blocks 13 are provided on the inner wall of the connecting plate 12. A plurality of slots 14 are provided inside the second arc plate 102, and the plug blocks 13 are fixedly sleeved inside the slots 14. A limited baffle 15 is provided inside the second arc plate 102, and an elastic pressure plate 16 is provided on the side wall of the limited baffle 15. A rotating shaft 17 is provided at the other end of the first arc plate 101, and a rotating frame 18 is provided at the other end of the second arc plate 102. The rotating shaft 17 is rotatably sleeved on the rotating frame 18. Internally, a plurality of ventilation holes 19 are arranged inside the first arc plate 101 and the second arc plate 102, and a plurality of anti-slip spring plates 20 are arranged on the inner walls of the first arc plate 101 and the second arc plate 102. The C-shaped splint 1 is composed of the first arc plate 101 and the second arc plate 102, and the first arc plate 101 and the second arc plate 102 are both arranged with a C-shaped open structure. Such a structure enables medical staff to install the C-shaped splint 1 on the fracture site of the injured person by means of its C-shaped open structure and directly clip it to the fracture site.

[0045] In addition, the connecting plate 12 and the adapting limit baffle 15 can be directly connected together through the plug block 13 and the slot 14, and the plug block 13 can be pressed down and fixed to the inside of the slot 14 by the elastic pressure plate 16. Since multiple groups of slots 14 are set in the second arc plate 102, medical staff can selectively allow the plug block 13 to be plugged into the slots 14 at different positions according to the size of the fracture site of the injured person, thereby improving the application scope of the C-type splint 1. The provision of the air holes 19 on the C-type splint 1 can not only improve the breathable and comfortable effect of the overall structure of the C-type splint 1, but also make it lighter; in addition, the inner walls of the first arc plate 101 and the second arc plate 102 are both provided with a number of anti-slip spring sheets 20. When the C-type splint 1 is installed to the fracture site of the injured person, the anti-slip spring sheets 20 are squeezed and deformed, thereby being able to fix the C-type splint 1 to the fracture site of the injured person and avoiding the problem of sliding of the C-type splint 1.

[0046] like Figure 6 As shown, an elastic plate 403 is arranged between the reset splint 401 and the movable splint 402, and a plurality of anti-skid pads 404 are arranged on the inner walls of the reset splint 401 and the movable splint 402. The anti-skid pads 404 are made of rubber. The reset arc plate 4 is an integrated structure composed of the reset splint 401, the movable splint 402 and the elastic plate 403. The elastic plate 403 is an arc-shaped plate with a certain elasticity. The movable splint 402 is linearly arranged on both sides of the reset splint 401 and is connected to the reset splint 401 through the elastic plate 403, and the movable splint 402 is connected to the reset splint 401 through the elastic plate 403. 03 are connected to each other, the reduction splint 401 and the movable splint 402 are both arc-shaped plates. When the reduction arc plate 4 is installed to the fracture site, the movable splint 402 acts on the elastic plate 403 to make the inner wall of the movable splint 402 fit with the curved surface of the limb, which can meet the clamping and fixing requirements of different positions. In addition, the inner walls of the reduction splint 401 and the movable splint 402 are both provided with anti-slip pads 404. When the reduction splint 401 and the movable splint 402 fit with the curved surface of the limb, the anti-slip pads 404 are in contact with the curved surface of the limb, which can avoid the problem of sliding of the device during use.

[0047] The working principle of the technical solution provided by the present invention is as follows:

[0048] When in use, the two groups of C-shaped splints 1 are respectively located on both sides of the fixed splint 2, and the fixed splint 2 is installed on the arc-shaped connecting frame 301 through the arc-shaped hook plate 202, so that the two groups of C-shaped splints 1 are connected and assembled together, and then the reset arc plate 4 is clamped to the bottom of the adjustment plate 7 through the installation clamping plate 11. When the C-shaped splint 1 is sleeved on the unfractured limb of the injured person, the position of the slide seat 6 in the adjustment slide groove 205 is adjusted according to the position of the fracture, and the slide seat 6 is clamped into the installation clamping groove 21 by using the arc-shaped pick 8, and then the threaded connection between the adjusting screw 10 and the threaded sleeve 9 is used to make the reset splint 401 contact with the surface of the limb, and at the same time, under the action of the elastic plate 403, the movable splint 402 is fitted with the curved surface of the limb to avoid the presence of the reset arc plate 4 and the limb. A certain gap is left to prevent the fracture site from being traumatized again due to shaking during transportation. Then, under the action of the fixed pressure plate 504, according to the resetting and fixation requirements of the fixed parameters of the limb, the positioning card plate 505 is fixedly mounted inside the positioning card slot 506 provided inside the connecting frame 501 and the connecting shaft 503, and the angle between the connecting frame 501 and the connecting arc plate 502 is locked. Then the device is removed from the unfractured limb and mounted on the fractured limb, so that the inner walls of the resetting splint 401 and the movable splint 402 are in contact with the curved surface of the limb, and then the connecting plate 12 is used to connect the first arc plate 101 and the second arc plate 102. During the connection process, the fracture site is quickly relocated and squeezed with the help of the resetting splint 401 and the movable splint 402, and clamped and fixed.

[0049] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A rapid reduction external fixation device for limb fractures, characterized in that: It includes a C-shaped clamp, a fixed clamp, a reset arc plate and a limiting component. The C-shaped clamp includes a first arc plate and a second arc plate. The side walls of the first arc plate and the second arc plate are both provided with an arc-shaped connecting frame. The fixed clamp is connected to the arc-shaped connecting frame. A sliding seat is slidably connected inside the fixed clamp. An adjusting plate is provided at the bottom of the sliding seat. The reset arc plate includes a reset clamp and a movable clamp. The reset clamp is provided at the bottom of the adjusting plate. The limiting component is provided between the reset clamp and the movable clamp. The limiting component includes a connecting frame and a connecting arc plate, the connecting frame is arranged at one end of the reset clamp and the movable clamp, the connecting arc plate is arranged at the other end of the reset clamp and the movable clamp, a connecting shaft is arranged at one end of the connecting arc plate, the connecting shaft is rotatably sleeved inside the connecting frame, a fixed pressing plate is arranged on the outer wall of the connecting frame, a positioning card plate is arranged at the bottom of the fixed pressing plate, a plurality of positioning card slots are arranged inside the connecting frame and the connecting shaft, and the positioning card plate is fixedly sleeved in the positioning card slot; A limiting slide groove is arranged inside the coupling shaft, a limiting slide rod is arranged at the bottom of the positioning card plate, and the limiting slide rod is slidably sleeved inside the limiting slide groove; The fixed splint includes an arc-shaped plate, arc-shaped hook plates are arranged at both ends of the arc-shaped plate, the arc-shaped connecting frame includes an arc-shaped connecting frame, the arc-shaped connecting frame is arranged on the side walls of the first arc-shaped plate and the second arc-shaped plate, a hook groove adapted to the shape of the arc-shaped hook plate is arranged between the arc-shaped connecting frame and the first arc-shaped plate, the arc-shaped hook plate is fixedly sleeved inside the hook groove, an adjusting slide groove is arranged inside the arc-shaped plate, a slide seat is slidably connected inside the adjusting slide groove, and a mounting card plate is arranged on the top of the reset splint; A threaded sleeve is provided inside the slide seat, an adjusting screw is provided inside the threaded sleeve, the bottom of the adjusting screw is connected to the top of the adjusting plate, an installation slot is provided on the outer wall of the adjusting plate, and the installation slot is fixedly sleeved inside the installation slot; An arc-shaped paddle is arranged on the top of the slide seat, a plurality of positioning grooves are arranged inside the adjusting slide groove, and the arc-shaped paddle is fixedly sleeved inside the positioning grooves.

2. The rapid reduction external fixation device for limb fractures according to claim 1, characterized in that: The outer wall of the arc-shaped connecting frame is provided with a plurality of limit blocks, the inner part of the arc-shaped hook plate is provided with a limit slot, the limit blocks are embedded in the limit slot, and the inner wall of the arc-shaped hook plate is provided with a weakened slot.

3. The rapid reduction external fixation device for limb fractures according to claim 2, characterized in that: A connecting plate is provided at one end of the first arc plate, a plurality of plug blocks are provided on the inner wall of the connecting plate, a plurality of slots are provided inside the second arc plate, the plug blocks are fixedly sleeved inside the slots, a limiting baffle is provided inside the second arc plate, and an elastic pressure plate is provided on the side wall of the limiting baffle.

4. The rapid reduction external fixation device for limb fractures according to claim 1, characterized in that: A rotating shaft is arranged at the other end of the first arc plate, and a rotating frame is arranged at the other end of the second arc plate. The rotating shaft is rotatably sleeved inside the rotating frame.

5. The rapid reduction external fixation device for limb fractures according to claim 1, characterized in that: A plurality of air holes are arranged inside the first arc plate and the second arc plate, and a plurality of anti-slip spring sheets are arranged on the inner walls of the first arc plate and the second arc plate.

6. The rapid reduction external fixation device for limb fractures according to claim 1, characterized in that: An elastic plate is arranged between the reset splint and the movable splint, and a plurality of anti-skid pads are arranged on the inner walls of the reset splint and the movable splint, and the anti-skid pads are made of rubber.

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