Fracture reduction enhanced fixing device based on augmented reality assistance

Abstract

The invention discloses a fracture reduction enhanced fixing device based on augmented reality assistance, and belongs to the field of medical instruments. Comprising a two-way telescopic rod and two connecting columns, ball grooves are formed in the middles of the two connecting columns, balls are rotationally connected to the inner walls of the two ball grooves, the two balls are fixedly connected to the telescopic end of the two-way telescopic rod, a rectangular sliding block slides, the rectangular sliding block slides to the proper needle threading position and angle, and the two ends of the two-way telescopic rod penetrate through the two-way telescopic rod. The bone nails are inserted into the near end and the far end of a fracture, then the screws are screwed, the rectangular sliding blocks are fixed, the two fixing frame bodies are made to adapt to the fracture parts of a patient according to the different fracture parts of the patient, in other words, the angle between the two fixing frame bodies can be changed, and the balls rotate in the corresponding ball grooves; the ball body rotates in the ball groove in a universal mode, the length of the two-way telescopic rod is changed along with the ball body, different fracture states of different patients can be adapted conveniently, and the ball body is limited through the limiting assembly.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and more specifically, to a fracture reduction and enhancement fixation device assisted by augmented reality. Background Art

[0002] The fracture reduction external fixator based on augmented reality integrates AR technology with the traditional external fixator system to provide doctors with intuitive and accurate surgical assistance. AR technology can display the internal structure, fracture type and displacement of the fracture site in real time during the operation, helping doctors to more accurately judge the fracture condition and perform precise reduction operations. The fracture reduction external fixator supports and stabilizes the fracture site through the external structure to promote the healing and recovery of the fracture.

[0003] The existing fracture reduction external fixator usually drives the bone screws to slide on the fixator. When the slider slides to the fracture site that needs to be fixed, the slider is fixed by screws. However, the screws are prone to loosening during use, resulting in the stability of the external fixator and the displacement of the fracture ends, which in turn affects the healing process and effect of the fracture. The current fixator needs to adjust the angle according to the different fracture sites of different patients, but the current fixator is inconvenient to adjust the angle of the fixator, resulting in the fixator being difficult to adapt to the changes in bone morphology during the fracture healing process and the poor treatment effect. Summary of the invention

[0004] In view of the fact that the screws in the prior art are prone to loosening during use, resulting in the instability of the external fixator, and easily causing the fracture ends to shift, thereby affecting the healing process and effect of the fracture. The current fixator needs to adjust the angle according to the different fracture sites of different patients, but the current fixator is inconvenient to adjust the angle of the fixator, resulting in the fixator being difficult to adapt to the changes in bone morphology during the fracture healing process and the problem of poor treatment effect. The purpose of the present invention is to provide a fracture reduction and enhanced fixation device assisted by augmented reality.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] A fracture reduction and enhanced fixation device based on augmented reality assistance, comprising a bidirectional telescopic rod and two connecting columns, the middle parts of the two connecting columns are provided with ball grooves, the inner walls of the two ball grooves are rotatably connected with balls, the two balls are fixedly connected to the telescopic ends of the bidirectional telescopic rod, the two connecting columns are fixedly connected to a fixing frame body on one side away from the bidirectional telescopic rod, the fixing frame body is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with two rectangular sliding blocks, the two rectangular sliding blocks are threadedly connected with screws, the upper ends of the screws are provided with bone nails, the bone nails pass through the rectangular sliding blocks, the connecting columns are provided with a limiting component for limiting the balls, and the fixing frame body is provided with a locking component for locking the screws.

[0007] Optionally, the limiting assembly includes two connecting rods, which are respectively fixedly connected to the outer surface of the sphere, a rectangular groove is opened in the middle of the connecting column, a push rod is slidably connected to the connecting rod, a circular plate is fixedly connected to the outer surface of the push rod, a first spring is fixedly connected between the outer surface of the connecting rod and the circular plate, the first spring is sleeved on the outside of the push rod, a rubber sheet is fixedly connected to the bottom end of the push rod, a first screw is threadedly connected to the connecting column, the first screw thread passes through the upper end of the connecting column, the top of the first screw is fixedly connected to a twist block, and the bottom end of the first screw is fixedly connected to an arc plate.

[0008] Optionally, the locking assembly includes a rectangular sleeve, which is fixedly connected to the main body of the right-end fixing frame, the inner wall of the rectangular sleeve is rotatably connected to a wire drum, the outer surface of the wire drum is wrapped with wire, wire holes are provided on the screw and the screw block, the wire passes through the wire holes, the front end of the wire drum is fixedly connected to a rotating shaft, the rotating shaft rotatably passes through the front end of the rectangular sleeve, the front end of the rotating shaft is fixedly connected to a knob, and a tensioning assembly for tightening the wire is provided on the main body of the fixing frame on the left.

[0009] Optionally, a fixing column is fixedly connected to the front end of the rectangular sleeve, a connecting plate is slidably connected to the outer surface of the fixing column, a second spring is fixedly connected between one side of the connecting plate and the rectangular sleeve, the second spring sleeve is arranged on the outer side of the fixing column, a latch is fixedly connected to one side of the connecting plate, a disc is fixedly connected to the outer surface of the rotating shaft, a plurality of slots which cooperate with the latch are opened on the disc, a handle is fixedly connected to the other side of the connecting plate, and a limiting plate is fixedly connected to the front end of the fixing column.

[0010] Optionally, the tensioning assembly includes a round rod, which is fixedly connected to the front end of the fixing frame body at the left end, the front end of the fixing frame body is fixedly connected to a first gear, and a placement groove is provided on the round rod, and the iron wire is wound in the placement groove.

[0011] Optionally, the front end of the fixed frame body at the left end is fixedly connected with a second screw, the front end of the second screw is fixedly connected with a first rotating block, the second screw is threadedly connected with a threaded sleeve, one side of the threaded sleeve is fixedly connected with a hollow shell, the front end of the hollow shell is provided with a tooth groove that cooperates with the first gear, the front end of the fixed frame body at the left end is fixedly connected with a limiting rod, the outer surface of the limiting rod is slidably connected with a rectangular block, one side of the rectangular block is fixedly connected to the threaded sleeve, and the front end of the limiting rod is fixedly connected to the limiting block.

[0012] Optionally, a cutting plate is fixedly connected to the inner bottom wall of the rectangular sleeve, a fixed block is symmetrically fixedly connected to the top end of the cutting plate, a knife housing is rotatably connected between the two fixed blocks, a cutting knife is fixedly connected to the lower end of the knife housing, a pull rod is fixedly connected to the front end of the knife housing, an L-shaped groove cooperating with the pull rod is provided on the rectangular sleeve, and a rubber block is symmetrically fixedly connected to the inner wall of the L-shaped groove.

[0013] Optionally, a sliding groove is provided in the middle part of the two fixing frame bodies, the inner wall of the sliding groove is slidably connected to a connecting frame, a limiting block is fixedly connected to one side of the connecting frame, the iron wire passes through the limiting block, the front end of the limiting block is fixedly connected to a rack plate, the front end of the fixing frame body is fixedly connected to a rectangular shell, the inner wall of the rectangular shell is rotatably connected to a connecting rod, the connecting rod rotatably passes through the upper end of the rectangular shell, the top end of the connecting rod is fixedly connected to a rotating block, the outer surface of the connecting rod is fixedly connected to a second gear, and the second gear and the rack plate are meshed with each other.

[0014] Optionally, a fixing plate is symmetrically fixedly connected to the top of the rectangular shell, a bidirectional threaded rod is rotatably passed through the fixing plate on the right side, the left end of the bidirectional threaded rod is rotatably connected to the left end fixing plate, the right end of the bidirectional threaded rod is fixedly connected to a second rotating block, and the bidirectional threaded rod is symmetrically threaded with clamping plates, the inner sides of the two clamping plates are fixedly connected with friction pads, a limiting rod is fixedly connected between the two fixing plates, and the limiting rod slides through the two clamping plates.

[0015] Optionally, the inner wall of the rectangular sleeve is symmetrically fixedly connected with fixing rods in the upper and lower parts, the outer surfaces of the two fixing rods are rotatably connected with guide wheels, and the outer surfaces of the guide wheels are fixedly connected with rubber pads.

[0016] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0017] In the above scheme, by providing a ball, when the fixing frame body needs to adapt to different fracture states of different patients, the rectangular slider is slid to a suitable needle insertion position and angle, and the bone screw is inserted into the proximal and distal ends of the fracture. Then, the screw is turned to fix the rectangular slider. According to the different fracture sites of the patients, the two fixing frame bodies need to be adapted to the fracture sites of the patients, that is, the angle between the two fixing frame bodies will change, and the ball rotates in the corresponding ball groove. Since the ball is spherical, the ball rotates universally in the ball groove, and the length of the two-way telescopic rod changes accordingly, which is convenient for adapting to different fracture states of different patients. Then, the screw block is screwed downward, and the screw block drives the first screw rod to rotate on the connecting column. Under the action of the thread of the first screw rod, the arc plate is driven to move downward on the connecting rod. When the arc plate contacts the push rod, the arc plate pushes the push rod and the circular plate to move downward, the first spring is stretched, and the push rod drives the rubber sheet to move, so that the rubber sheet contacts the inner wall of the rectangular groove, and the ball is restricted by the friction force of the rubber sheet.

[0018] When the screw and the screw block need to be prevented from loosening, the restriction on the rotating shaft is first released, and the knob is turned. The knob drives the rotating shaft to rotate, and the rotating shaft drives the wire drum to rotate to release the wire. After the release is completed, the handle is loosened, the second spring rebounds, and the connecting plate drives the pin to be inserted into the slot on the disc to restrict the wire drum. Subsequently, the released wire passes through the wire hole. Subsequently, the end of the wire is wound into the placement groove on the round rod, and the wire is inserted into a tight state. Subsequently, the first rotating block is turned, and the first rotating block drives the second screw to rotate. Under the action of the second screw thread, the threaded sleeve moves, and the threaded sleeve drives the limiting plate to slide on the limiting rod. The limiting rod restricts the threaded sleeve, and the threaded sleeve also drives the hollow shell to move when it moves. When the hollow shell moves to contact with the front end of the fixing frame body, the hollow shell squeezes and fixes the wire, and the first gear on the round rod is inserted into the tooth groove to fix the round rod to prevent the screw and the screw block from loosening.

[0019] By providing a cutter, when the device is used and the iron wire needs to be cut, the pull rod is pulled and pressed downward, and the pull rod drives the knife housing and the cutter to move downward. When the cutter contacts the cutting plate, the iron wire is cut, which is convenient for fixing the screw and the screw block next time. After the cutting is completed, the pull rod is pulled upward, and the pull rod drives the knife housing and the cutter to move upward. When the pull rod moves to the uppermost end and contacts the rubber block, the pull rod squeezes the rubber block to compress the rubber block. When the pull rod completely passes through the rubber block, the rubber block rebounds to fix the pull rod to prevent the pull rod from moving.

[0020] By providing a connecting frame, when it is necessary to adjust the length of the fixing frame body, first release the restriction on the connecting rod, turn the rotating block, the rotating block drives the connecting rod to rotate, the connecting rod drives the second gear to rotate, the second gear drives the rack plate, so that the rack plate drives the connecting frame to slide outward in the sliding groove to adjust the length of the fixing frame body. When it is adjusted to a suitable length, turn the second rotating block, the second rotating block drives the bidirectional threaded rod to rotate, the bidirectional threaded rod drives the two clamping plates to approach each other, clamp and fix the connecting rod, and increase the friction force of the clamping plate on the connecting rod through the friction pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the main structure of the connecting column and the fixing frame of the present invention;

[0024] Figure 3 It is a schematic diagram of the front cross-sectional structure of the connecting column of the present invention;

[0025] Figure 4 For the present invention Figure 1 A is an enlarged schematic diagram of the structure;

[0026] Figure 5 It is a schematic diagram of the front cross-sectional structure of the rectangular sleeve of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the latch and the slot of the present invention;

[0028] Figure 7 For the present invention Figure 1 A schematic diagram of the enlarged structure at B;

[0029] Figure 8 It is a schematic diagram of the round rod and placement groove structure of the present invention;

[0030] Fig. 9 It is a schematic diagram of the second screw and hollow shell structure of the present invention;

[0031] Fig.10 It is a schematic diagram of the knife housing and the cutting knife structure of the present invention;

[0032] Fig.11 It is a schematic diagram of the structure of the limit block and the rack plate of the present invention;

[0033] Fig.12 It is a schematic diagram of the bidirectional threaded rod and the clamping plate structure of the present invention.

[0034] [Reference Signs]

[0035] 101, two-way telescopic rod; 102, connecting column; 103, ball groove; 104, ball; 105, fixed frame body; 106, slide groove; 107, rectangular slider; 108, screw; 109, bone nail; 201, connecting rod; 202, rectangular groove; 203, push rod; 204, round plate; 205, first spring; 206, rubber sheet; 207, first screw; 208, screw block; 209, arc plate; 210, rectangular sleeve; 211, wire drum; 212, wire line; 213, wire hole; 214, rotating shaft; 215, knob; 216, fixed column; 217, connecting plate; 218, second spring; 219, latch; 220, disc; 221, slot; 222, handle; 223, limit plate; 224, round rod; 225 , first gear; 226, placement groove; 227, second screw; 228, first rotary block; 229, threaded sleeve; 230, hollow shell; 231, tooth groove; 232, limit rod; 233, rectangular block; 234, limit block; 235, cutting plate; 236, fixed block; 237, knife shell; 238, cutter; 239, pull rod; 240, L-shaped groove; 241, rubber block; 242, sliding groove; 243, connecting frame; 244, limit block; 245, rack plate; 246, rectangular shell; 247, connecting rod; 248, rotary block; 249, second gear; 250, fixed plate; 251, two-way threaded rod; 252, second rotary block; 253, clamping plate; 254, friction pad; 255, limit rod; 256, fixed rod; 257, guide wheel.

[0036] 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 will adjust or modify these devices and environments. DETAILED DESCRIPTION

[0037] The following is a detailed description of an augmented reality-assisted fracture reduction and fixation device 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.

[0038] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the described embodiments 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).

[0039] In general, a term is understood, at least in part, from its use in context. For example, the term "one or more" as used herein is used to describe any feature, structure, or characteristic in the singular sense, or to describe a combination of features, structures, or characteristics in the plural sense, depending, at least in part, on the context. Additionally, the term "based on" is understood to not necessarily be intended to convey an exclusive set of factors, but instead, depending, at least in part on the context, allows for the presence of other factors that are not necessarily explicitly described.

[0040] It is understood that the meaning 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, 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.

[0041] Additionally, spatially relative terms such as "under," "beneath," "lower," "over," "upper," and the like are 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. The 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 is otherwise oriented, and the spatially relative descriptors used herein are similarly interpreted accordingly.

[0042] like Figures 1 to 12As shown, the embodiment of the present invention provides an augmented reality-assisted fracture reduction and enhancement fixation device, comprising a bidirectional telescopic rod 101 and two connecting columns 102, wherein the middle parts of the two connecting columns 102 are provided with ball grooves 103, the inner walls of the two ball grooves 103 are rotatably connected with spheres 104, the two spheres 104 are fixedly connected to the telescopic ends of the bidirectional telescopic rod 101, the two connecting columns 102 are fixedly connected with a fixing frame body 105 on one side away from the bidirectional telescopic rod 101, the fixing frame body 105 is provided with a slide groove 106, the inner wall of the slide groove 106 is slidably connected with two rectangular sliders 107, the two rectangular sliders 107 are threadedly connected with screws 108, the upper ends of the screws 108 are provided with bone nails 109, the bone nails 109 penetrate the rectangular sliders 107, the connecting column 102 is provided with a limiting component for limiting the spheres 104, and the fixing frame body 105 is provided with a locking component for locking the screws 108.

[0043] During use, the staff uses AR technology to display the internal structure of the patient's fracture site in real time during the operation, and determines the specific position of the bone screw 109 through AR technology. After the determination is completed, slide the rectangular slider 107 to a suitable needle insertion position and angle, insert the bone screw 109 into the proximal and distal ends of the fracture, and then screw the screw 108 to fix the rectangular slider 107. According to the different fracture sites of the patients, the two fixing frame bodies 105 need to be adapted to the fracture sites of the patients, that is, the angle between the two fixing frame bodies 105 will change, and the ball 104 will rotate in the corresponding ball groove 103. Since the ball 104 is spherical, the ball 104 can rotate universally in the ball groove 103, and the length of the two-way telescopic rod 101 changes accordingly, which is convenient for adapting to different fracture states of different patients.

[0044] like Figure 3 As shown, the limiting assembly includes two connecting rods 201, and the two connecting rods 201 are respectively fixedly connected to the outer surface of the sphere 104, a rectangular groove 202 is opened in the middle of the connecting column 102, a push rod 203 is slidably connected to the connecting rod 201, and a circular plate 204 is fixedly connected to the outer surface of the push rod 203, and a first spring 205 is fixedly connected between the outer surface of the connecting rod 201 and the circular plate 204, the first spring 205 is sleeved on the outside of the push rod 203, and a rubber sheet 206 is fixedly connected to the bottom end of the push rod 203, a first screw 207 is threadedly connected to the connecting column 102, the first screw 207 is threadedly penetrated through the upper end of the connecting column 102, the top of the first screw 207 is fixedly connected to a screw block 208, and the bottom end of the first screw 207 is fixedly connected to an arc plate 209.

[0045] When it is necessary to limit the angle of the sphere 104, the screw block 208 is screwed downward, and the screw block 208 drives the first screw 207 to rotate on the connecting column 102. Through the threaded action of the first screw 207, the arc plate 209 is driven to move downward on the connecting rod 201. When the arc plate 209 contacts the push rod 203, the arc plate 209 pushes the push rod 203 and the circular plate 204 to move downward, the first spring 205 is stretched, and the push rod 203 drives the rubber sheet 206 to move, so that the rubber sheet 206 contacts the inner wall of the rectangular groove 202, and the friction force of the rubber sheet 206 is used to limit the sphere 104.

[0046] like Figure 4 and Figure 5 As shown, the locking assembly includes a rectangular sleeve 210, which is fixedly connected to the right end fixing frame body 105, the inner wall of the rectangular sleeve 210 is rotatably connected with a wire drum 211, the outer surface of the wire drum 211 is wound with a wire line 212, the screw 108 and the screw block 208 are provided with a wire hole 213, the wire line 212 passes through the wire hole 213, the front end of the wire drum 211 is fixedly connected with a rotating shaft 214, the rotating shaft 214 rotatably passes through the front end of the rectangular sleeve 210, the front end of the rotating shaft 214 is fixedly connected with a knob 215, and a tensioning assembly for tightening the wire line 212 is provided on the fixing frame body 105 on the left.

[0047] When the screw 108 and the screw block 208 need to be fixed, the knob 215 is turned, and the knob 215 drives the rotating shaft 214 to rotate, and the rotating shaft 214 drives the wire drum 211 to rotate, and the wire 212 on the wire drum 211 is released. Subsequently, the released wire 212 is passed through the wire holes 213 on the screw 108 and the screw block 208, and the wire 212 is tightened by the tensioning assembly to fix the screw 108 and the bone screw 109.

[0048] like Figure 6 As shown, the front end of the rectangular sleeve 210 is fixedly connected with a fixing column 216, and the outer surface of the fixing column 216 is slidably connected with a connecting plate 217, and a second spring 218 is fixedly connected between one side of the connecting plate 217 and the rectangular sleeve 210, and the second spring 218 is sleeved on the outer side of the fixing column 216, and one side of the connecting plate 217 is fixedly connected with a latch 219, and the outer surface of the rotating shaft 214 is fixedly connected with a disk 220, and a plurality of slots 221 that cooperate with the latch 219 are opened on the disk 220, and a handle 222 is fixedly connected to the other side of the connecting plate 217, and the front end of the fixing column 216 is fixedly connected with a limiting plate 223.

[0049] When it is necessary to limit the wire drum 211, the handle 222 is pulled, and the handle 222 drives the connecting plate 217 to slide on the fixing column 216, the second spring 218 is stretched, and the connecting plate 217 drives the latch 219 to leave the slot 221 on the disk 220, and then the knob 215 is turned, the knob 215 drives the rotating shaft 214 and the disk 220 to rotate, and the rotating shaft 214 drives the wire drum 211 to rotate, and the wire line 212 on the wire drum 211 is released. After the release is completed, the handle 222 is released, the second spring 218 rebounds, and the connecting plate 217 drives the latch 219 to be inserted into the slot 221 on the disk 220 to limit the wire drum 211. The connecting plate 217 is limited by the limiting plate 223 to prevent the handle 222 from driving the connecting plate 217 to slide out of the fixing column 216 when the handle 222 is pulled.

[0050] like Figure 7 and Figure 8 As shown, the tensioning assembly includes a round rod 224, which is fixedly connected to the front end of the fixing frame body 105 at the left end. The front end of the fixing frame body 105 is fixedly connected with a first gear 225. A placement groove 226 is opened on the round rod 224, and the wire 212 is wound in the placement groove 226.

[0051] When the wire 212 needs to be tightened, the wire 212 is passed through the wire holes 213 on the screw 108 and the screw block 208, and the end of the wire 212 is wrapped along the placement groove 226 on the round rod 224 to tighten the wire 212 so that the wire 212 is in a taut state to prevent the screw 108 and the screw block 208 from loosening.

[0052] like Figure 7 and Fig. 9 As shown, the front end of the fixing frame body 105 at the left end is fixedly connected with a second screw 227, the front end of the second screw 227 is fixedly connected with a first rotating block 228, the second screw 227 is threadedly connected with a threaded sleeve 229, one side of the threaded sleeve 229 is fixedly connected with a hollow shell 230, the front end of the hollow shell 230 is provided with a tooth groove 231 that cooperates with the first gear 225, the front end of the fixing frame body 105 at the left end is fixedly connected with a limiting rod 232, the outer surface of the limiting rod 232 is slidably connected with a rectangular block 233, one side of the rectangular block 233 is fixedly connected to the threaded sleeve 229, and the front end of the limiting rod 232 is fixedly connected with a limiting block 234.

[0053] When it is necessary to fix the wire 212 in a taut state, the first rotary block 228 is turned, and the first rotary block 228 drives the second screw rod 227 to rotate. Under the action of the thread of the second screw rod 227, the first rotary block 228 drives the threaded sleeve 229 to move, and the threaded sleeve 229 drives the limiting plate 223 to slide on the limiting rod 232 to limit the threaded sleeve 229. When the threaded sleeve 229 moves, it also drives the hollow shell 230 to move. When the hollow shell 230 moves to contact with the front end of the fixing frame body 105, the hollow shell 230 squeezes and fixes the wire 212, and the first gear 225 on the round rod 224 is inserted into the tooth groove 231 to fix the round rod 224.

[0054] like Fig.10 As shown, the inner bottom wall of the rectangular sleeve 210 is fixedly connected with a cutting plate 235, the top end of the cutting plate 235 is symmetrically fixedly connected with a fixing block 236, a knife housing 237 is rotatably connected between the two fixing blocks 236, the lower end of the knife housing 237 is fixedly connected with a cutting knife 238, the front end of the knife housing 237 is fixedly connected with a pull rod 239, the rectangular sleeve 210 is provided with an L-shaped groove 240 which cooperates with the pull rod 239, and the inner wall of the L-shaped groove 240 is symmetrically fixedly connected with a rubber block 241.

[0055] When it is necessary to cut the wire 212, press the pull rod 239 downward to move the pull rod 239 in the L-shaped groove 240, and the pull rod 239 drives the knife housing 237 and the cutter 238 to move downward. When the cutter 238 contacts the cutting plate 235, the wire 212 is cut to facilitate the next fixation of the screw 108 and the screw block 208. After the cutting is completed, pull the pull rod 239 upward to drive the knife housing 237 and the cutter 238 to move upward. When the pull rod 239 moves to the uppermost end and contacts the rubber block 241, the pull rod 239 squeezes the rubber block 241 to compress the rubber block 241. When the pull rod 239 completely passes through the rubber block 241, the rubber block 241 rebounds to fix the pull rod 239 to prevent the pull rod 239 from moving.

[0056] like Fig.11As shown, a sliding groove 242 is provided in the middle of the two fixing frame bodies 105, and a connecting frame 243 is slidably connected to the inner wall of the sliding groove 242, and a limiting block 244 is fixedly connected to one side of the connecting frame 243. The iron wire 212 passes through the limiting block 244, and the front end of the limiting block 234 is fixedly connected to a rack plate 245. The front end of the fixing frame body 105 is fixedly connected to a rectangular shell 246, and the inner wall of the rectangular shell 246 is rotatably connected to a connecting rod 247, and the connecting rod 247 is rotatably passed through the upper end of the rectangular shell 246, and the top of the connecting rod 247 is fixedly connected to a rotating block 248, and the outer surface of the connecting rod 247 is fixedly connected to a second gear 249, and the second gear 249 is meshed with the rack plate 245.

[0057] When it is necessary to adjust the length of the fixing frame body 105, the rotating block 248 is turned, and the rotating block 248 drives the connecting rod 247 to rotate, and the connecting rod 247 drives the second gear 249 to rotate, and the second gear 249 drives the rack plate 245, so that the rack plate 245 drives the connecting frame 243 to slide outward in the sliding groove 242, so as to adjust the length of the fixing frame body 105, and limit the wire 212 by the limiting block 244.

[0058] like Fig.12 As shown, a fixing plate 250 is symmetrically fixedly connected to the top of the rectangular shell 246, a bidirectional threaded rod 251 is rotatably passed through the fixing plate 250 on the right side, the left end of the bidirectional threaded rod 251 is rotatably connected to the left end fixing plate 250, the right end of the bidirectional threaded rod 251 is fixedly connected to a second rotating block 252, and the bidirectional threaded rod 251 is symmetrically threadedly connected to clamping plates 253, the inner sides of the two clamping plates 253 are fixedly connected with friction pads 254, and a limiting rod 255 is fixedly connected between the two fixing plates 250, and the limiting rod 255 slides through the two clamping plates 253.

[0059] When it is necessary to limit the connecting rod 247, the second rotating block 252 is turned, and the second rotating block 252 drives the bidirectional threaded rod 251 to rotate on the fixed plate 250. Under the action of the threads of the bidirectional threaded rod 251, the bidirectional threaded rod 251 drives the two clamping plates 253 to move outward, and the friction pad 254 is restricted by the limiting rod 255. Subsequently, the rotating block 248 is turned, and the rotating block 248 drives the connecting rod 247 to rotate, and the connecting rod 247 drives the second gear 249 to rotate, and the second gear The wheel 249 drives the rack plate 245, so that the rack plate 245 drives the connecting frame 243 to slide outward in the sliding groove 242 to adjust the length of the fixing frame body 105. After the adjustment is completed, the second rotating block 252 is screwed in the opposite direction, and the second rotating block 252 drives the bidirectional threaded rod 251 to rotate. The bidirectional threaded rod 251 drives the two clamping plates 253 to approach each other, clamp and fix the connecting rod 247, and increase the friction force of the clamping plate 253 on the connecting rod 247 through the friction pad 254.

[0060] like Figure 5 As shown, the inner wall of the rectangular sleeve 210 is symmetrically fixedly connected with fixing rods 256 in the upper and lower parts, and the outer surfaces of the two fixing rods 256 are rotatably connected with guide wheels 257, and the outer surfaces of the guide wheels 257 are fixedly connected with rubber pads.

[0061] By providing the fixing rod 256 and the guide wheel 257 , when the iron wire 212 is released, the guide wheel 257 guides the iron wire 212 , and the rubber pad protects the iron wire 212 .

[0062] The working process provided by the present invention is as follows:

[0063] During use, the staff uses AR technology to display the internal structure of the patient's fracture site in real time during the operation, and determines the specific position of the bone screw 109 through AR technology. After the determination is completed, the rectangular slider 107 is slid to a suitable needle insertion position and angle, and the bone screw 109 is inserted into the proximal and distal ends of the fracture, and then the screw 108 is screwed to fix the rectangular slider 107.

[0064] According to the different fracture sites of the patients, the two fixing frame bodies 105 need to adapt to the fracture sites of the patients, that is, the angle between the two fixing frame bodies 105 will change, and the ball 104 will rotate in the corresponding ball groove 103. Since the ball 104 is spherical, the ball 104 can rotate universally in the ball groove 103, and the length of the bidirectional telescopic rod 101 will change accordingly, so as to adapt to the different fracture states of different patients.

[0065] Then, the screw block 208 is screwed downward, and the screw block 208 drives the first screw rod 207 to rotate on the connecting column 102. Under the action of the thread of the first screw rod 207, the arc plate 209 is driven to move downward on the connecting rod 201. When the arc plate 209 contacts the push rod 203, the arc plate 209 pushes the push rod 203 and the circular plate 204 to move downward. The first spring 205 is stretched, and the push rod 203 drives the rubber sheet 206 to move, so that the rubber sheet 206 contacts the inner wall of the rectangular groove 202. The friction force of the rubber sheet 206 restricts the ball 104, and the handle 222 is pulled. The handle 222 drives the connecting plate 217 to slide on the fixed column 216. The second spring 218 is stretched, and the connecting plate 217 drives the pin 219 to leave the slot 221 on the disc 220.

[0066] Then, the knob 215 is turned, and the knob 215 drives the rotating shaft 214 to rotate, and the rotating shaft 214 drives the wire drum 211 to rotate, so that the wire 212 on the wire drum 211 is released, and the two guide wheels 257 guide the wire 212, and the rubber pad on the outer surface of the guide wheel 257 protects the wire 212. After the release is completed, the handle 222 is released, and the second spring 218 rebounds, and the connecting plate 217 drives the pin 219 to be inserted into the slot 221 on the disc 220 to limit the wire drum 211, and the connecting plate 217 is limited by the limit plate 223 to prevent the handle 222 from driving the connecting plate 217 to slide off the fixing column 216 when the handle 222 is pulled.

[0067] Then, the released wire 212 passes through one side of the left rectangular shell 246, passes through the right limiting block 244, and then passes through the wire hole 213 on the screw 108 and the screw block 208, passes out from the left limiting block 244, and passes through one side of the left rectangular shell 246. The end of the wire 212 is wrapped in the placement groove 226 on the round rod 224, and the wire 212 is tightened to keep the wire 212 in a taut state to prevent the screw 108 and the screw block 208 from loosening. Then, the first rotating block 228 is rotated, and the first rotating block 228 drives the second screw rod 227 to rotate. Under the action of the thread of the second screw rod 227, the first rotating block 228 drives the threaded sleeve 229 to move, and the threaded sleeve 229 is moved. 29 drives the limiting plate 223 to slide on the limiting rod 232 to limit the threaded sleeve 229. When the threaded sleeve 229 moves, it also drives the hollow shell 230 to move. When the hollow shell 230 moves to contact with the front end of the fixing frame body 105, the hollow shell 230 squeezes and fixes the wire 212. The first gear 225 on the round rod 224 is inserted into the tooth groove 231 to fix the round rod 224. The second rotating block 252 is twisted, and the second rotating block 252 drives the bidirectional threaded rod 251 to rotate on the fixing plate 250. Under the action of the threads of the bidirectional threaded rod 251, the bidirectional threaded rod 251 drives the two clamping plates 253 to move outward, and the friction pad 254 is limited by the limiting rod 255.

[0068] Then, the rotating block 248 is turned, and the rotating block 248 drives the connecting rod 247 to rotate, and the connecting rod 247 drives the second gear 249 to rotate, and the second gear 249 drives the rack plate 245, so that the rack plate 245 drives the connecting frame 243 to slide outward in the sliding groove 242, and the length of the fixed frame body 105 is adjusted. When the connecting frame 243 is adjusted to a suitable length, the second rotating block 252 is turned in the opposite direction, and the second rotating block 252 drives the bidirectional threaded rod 251 to rotate, and the bidirectional threaded rod 251 drives the two clamping plates 253 to approach each other, clamp and fix the connecting rod 247, and increase the friction force of the clamping plate 253 on the connecting rod 247 through the friction pad 254. When the device is used, press the pull rod downward. 239, so that the pull rod 239 moves in the L-shaped groove 240, the pull rod 239 drives the knife housing 237 and the cutter 238 to move downward, and when the cutter 238 contacts the cutting plate 235, the wire 212 is cut off, so as to facilitate the next fixation of the screw 108 and the screw block 208. After the cutting is completed, the pull rod 239 is pulled upward, and the pull rod 239 drives the knife housing 237 and the cutter 238 to move upward. When the pull rod 239 moves to the uppermost end and contacts the rubber block 241, the pull rod 239 squeezes the rubber block 241 to compress the rubber block 241. When the pull rod 239 completely passes through the rubber block 241, the rubber block 241 rebounds to fix the pull rod 239 to prevent the pull rod 239 from moving.

[0069] 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, and 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.

[0070] 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 fracture reduction and fixation device based on augmented reality, comprising a bidirectional telescopic rod and two connecting columns, characterized in that: The middle parts of the two connecting columns are provided with ball grooves, the inner walls of the two ball grooves are rotatably connected with balls, the two balls are fixedly connected to the telescopic ends of the two-way telescopic rod, the two connecting columns are fixedly connected to a fixing frame body on one side away from the two-way telescopic rod, the fixing frame body is provided with a slide groove, and the inner wall of the slide groove is slidably connected with two rectangular sliding blocks; The two rectangular sliders are both threadedly connected with screws, the upper ends of the screws are provided with bone screws, and the bone screws penetrate the rectangular sliders. The connecting column is provided with a limiting component for limiting the sphere, and the fixing frame body is provided with a locking component for locking the screws.

2. The augmented reality-assisted fracture reduction and fixation device according to claim 1, characterized in that: The limiting assembly includes two connecting rods, which are respectively fixedly connected to the outer surface of the sphere, a rectangular groove is opened in the middle of the connecting column, a push rod is slidably connected to the connecting rod, a circular plate is fixedly connected to the outer surface of the push rod, a first spring is fixedly connected between the outer surface of the connecting rod and the circular plate, the first spring is sleeved on the outside of the push rod, a rubber sheet is fixedly connected to the bottom end of the push rod, a first screw is threadedly connected to the connecting column, the first screw thread passes through the upper end of the connecting column, the top end of the first screw is fixedly connected to a twist block, and the bottom end of the first screw is fixedly connected to an arc plate.

3. The augmented reality-assisted fracture reduction and fixation device according to claim 2, characterized in that: The locking assembly includes a rectangular sleeve, which is fixedly connected to the main body of the right-end fixing frame. The inner wall of the rectangular sleeve is rotatably connected to a wire drum, and the outer surface of the wire drum is wound with wire. Wire holes are provided on the screw and the screw block, and the wire passes through the wire holes. The front end of the wire drum is fixedly connected to a rotating shaft, and the rotating shaft rotatably passes through the front end of the rectangular sleeve. The front end of the rotating shaft is fixedly connected to a knob, and a tensioning assembly for tightening the wire is provided on the main body of the fixing frame on the left.

4. The augmented reality-assisted fracture reduction and fixation device according to claim 3, characterized in that: The front end of the rectangular sleeve is fixedly connected to a fixing column, the outer surface of the fixing column is slidably connected to a connecting plate, a second spring is fixedly connected between one side of the connecting plate and the rectangular sleeve, the second spring sleeve is arranged on the outer side of the fixing column, one side of the connecting plate is fixedly connected to a latch, the outer surface of the rotating shaft is fixedly connected to a disc, the disc is provided with a plurality of slots which cooperate with the latch, the other side of the connecting plate is fixedly connected to a handle, and the front end of the fixing column is fixedly connected to a limiting plate.

5. The augmented reality-assisted fracture reduction and fixation device according to claim 4, characterized in that: The tensioning assembly comprises a round rod, which is fixedly connected to the front end of the fixing frame body at the left end, the front end of the fixing frame body is fixedly connected to a first gear, and a placement groove is provided on the round rod, and the iron wire is wound in the placement groove.

6. The augmented reality-assisted fracture reduction and fixation device according to claim 5, characterized in that: The front end of the fixed frame body at the left end is fixedly connected with a second screw, the front end of the second screw is fixedly connected with a first rotating block, the second screw is threadedly connected with a threaded sleeve, one side of the threaded sleeve is fixedly connected with a hollow shell, the front end of the hollow shell is provided with a tooth groove that cooperates with the first gear, the front end of the fixed frame body at the left end is fixedly connected with a limiting rod, the outer surface of the limiting rod is slidably connected with a rectangular block, one side of the rectangular block is fixedly connected to the threaded sleeve, and the front end of the limiting rod is fixedly connected to the limiting block.

7. The augmented reality-assisted fracture reduction and fixation device according to claim 6, characterized in that: The inner bottom wall of the rectangular sleeve is fixedly connected with a cutting plate, the top end of the cutting plate is symmetrically fixedly connected with a fixed block, a knife housing is rotatably connected between the two fixed blocks, the lower end of the knife housing is fixedly connected with a cutting knife, the front end of the knife housing is fixedly connected with a pull rod, an L-shaped groove cooperating with the pull rod is provided on the rectangular sleeve, and a rubber block is symmetrically fixedly connected to the inner wall of the L-shaped groove.

8. The augmented reality-assisted fracture reduction and fixation device according to claim 7, characterized in that: A sliding groove is provided in the middle part of the two fixing frame bodies, and a connecting frame is slidably connected to the inner wall of the sliding groove, a limiting block is fixedly connected to one side of the connecting frame, the iron wire passes through the limiting block, the front end of the limiting block is fixedly connected to a rack plate, the front end of the fixing frame body is fixedly connected to a rectangular shell, the inner wall of the rectangular shell is rotatably connected to a connecting rod, the connecting rod rotatably passes through the upper end of the rectangular shell, the top end of the connecting rod is fixedly connected to a rotating block, the outer surface of the connecting rod is fixedly connected to a second gear, and the second gear and the rack plate are meshed with each other.

9. The augmented reality-assisted fracture reduction and fixation device according to claim 8, characterized in that: The top end of the rectangular shell is symmetrically fixedly connected with a fixing plate, a bidirectional threaded rod is rotatably passed through the fixing plate on the right side, the left end of the bidirectional threaded rod is rotatably connected to the left end fixing plate, the right end of the bidirectional threaded rod is fixedly connected with a second rotating block, the bidirectional threaded rod is symmetrically threadedly connected with clamping plates on the bidirectional threaded rod, friction pads are fixedly connected to the inner sides of the two clamping plates, a limiting rod is fixedly connected between the two fixing plates, and the limiting rod slides through the two clamping plates.

10. The augmented reality-assisted fracture reduction and fixation device according to claim 9, characterized in that: The inner wall of the rectangular sleeve is symmetrically fixedly connected with fixing rods up and down, the outer surfaces of the two fixing rods are rotatably connected with guide wheels, and the outer surfaces of the guide wheels are fixedly connected with rubber pads.

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