Orthopedic external fixation device and use method thereof

Abstract

The invention discloses an orthopedic external fixing device and a using method thereof, and relates to the technical field of medical instruments, the orthopedic external fixing device comprises a fixing frame, a fixing assembly and a clamping assembly, the fixing assembly comprises a fixing sliding block, a lifting fixing block, a fixing limiting rod, a lifting moving plate and a fixing mechanism, and the fixing mechanism comprises a clamping wedge block. The lifting fixing block moves to make contact with the bottom face of the supporting ring, the lifting moving plate moves downwards to drive the clamping wedge block to move, the clamping wedge block moves and extrudes the fixing limiting rod, the lifting moving plate stops moving, the position of the lifting fixing block is fixed, and the fixing sliding block is matched with the lifting fixing block to extrude and fix the supporting ring. By moving the lifting moving plate, the clamping wedge blocks clamp and fix the limiting rods, so that the positions of the lifting fixing blocks are fixed, a traditional fixing mode of bolts and nuts is not adopted, the situation that the fixing bolts are frequently disassembled when the supporting base needs to be adjusted is avoided, and the fixing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an orthopedic external fixation device and its method of use. Background Technology

[0002] External fixation devices in orthopedics are medical devices commonly used in orthopedic treatment. They are medical devices that connect to the bone through needles, nails, or screws that penetrate the skin, and form a stable frame outside the body through links and connectors, in order to fix fractures, correct deformities, or lengthen bones.

[0003] Existing orthopedic external fixation devices typically use a bolt and nut-like structure to fix the Kirschner wires and adjust their position. During use, when adjustments are needed, repeated adjustments are required. The traditional bolt and nut structure necessitates using a wrench to turn the nut, making the fixation process cumbersome and inefficient. Furthermore, in patients' daily lives, orthopedic fixation devices may collide with other objects, causing the Kirschner wire fixation to loosen, failing to achieve the desired auxiliary fixation effect and hindering recovery. Summary of the Invention

[0004] The purpose of this invention is to adopt a simpler fixing method for the Kirschner wire position, so as to solve the problem that the Kirschner wire is fixed by a similar structure to traditional bolts and nuts in the prior art, and the adjustment steps are cumbersome.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an orthopedic external fixation device, comprising a fixation frame, a fixation component, and a clamping component, wherein the fixation frame includes a support ring, a plurality of fixation components are disposed on the support ring, and a clamping component is disposed on the fixation component;

[0006] The fixing assembly includes a fixed sliding block, a lifting fixing block, a fixed limiting rod, a lifting moving plate, and a fixing mechanism. The fixed sliding block is slidably mounted on the support ring. The fixed limiting rod is fixedly mounted below the fixed sliding block. The lifting fixing block is slidably sleeved on the fixed limiting rod. The lifting moving plate is slidably mounted on the side of the lifting fixing block. The fixing mechanism is provided on both sides of the lifting moving plate. Clamping limiting grooves are provided on both sides of the fixed limiting rod. The fixing mechanism includes clamping wedges, which are slidably mounted on the bottom surface of the lifting fixing block.

[0007] When the lifting fixed block contacts the support ring, the lifting moving plate can move downward. The downward movement of the lifting moving plate can drive the clamping wedge block to move into the clamping limiting groove. When the clamping wedge block moves and comes into contact with and squeezes the inner wall of the clamping limiting groove, it can cause the lifting fixed block to move upward and squeeze the support ring.

[0008] The clamping assembly includes a Kirschner wire, a clamping base, a clamping rotating arc plate, and a lifting limit rod. The Kirschner wire is disposed on the top surface of the clamping base. The clamping base is fixedly installed on the top surface of the fixed sliding block. The clamping rotating arc plate is rotatably installed on the top surface of the clamping base. The lifting limit rod is disposed on the side of the fixed sliding block.

[0009] When the clamping rotating arc plate rotates and the clamping base clamps and fixes the Kirschner wire, the lifting limit rod can move and limit the clamping rotating arc plate.

[0010] Furthermore, the fixing mechanism also includes a pressing arc block, a rotating gear, a moving rack, and a rotating connecting rod. Several pressing mounting blocks are fixedly installed on the bottom surface of the lifting fixing block. The two sides of the pressing arc block are rotatably connected to the pressing mounting blocks. The rotating shaft of the rotating gear passes through the pressing mounting blocks and is fixedly connected to the pressing arc block. The moving rack is slidably installed on the side of the lifting fixing block and meshes with the rotating gear. One end of the rotating connecting rod is rotatably connected to the moving rack, and the other end is rotatably connected to the lifting moving plate.

[0011] Furthermore, the fixing assembly also includes a support mounting block, a rotating support rod, a rotating limiting block, a movable pull rod, a limiting rotating rod, a limiting wedge, a limiting spring, and a release pull rod. The support mounting block is fixedly installed on the side of the lifting moving plate. The rotating support rod passes through the support mounting block and is rotatably connected to the support mounting block. The rotating limiting block is fixedly installed at the top of the rotating support rod. The side of the lifting fixing block has a rotating limiting groove. The movable pull rod is fixedly installed at the bottom of the rotating support rod. The limiting rotating rod is fixedly installed on the bottom surface of the movable pull rod. The side of the lifting moving plate has a fixing limiting groove. The inner wall of the fixing limiting groove has a wedge mounting groove. The limiting wedge is partially slidably installed in the wedge mounting groove. One end of the limiting spring is fixedly connected to the limiting wedge, and the other end is fixedly connected to the inner wall of the wedge mounting groove. The top end of one end of the release pull rod is rotatably connected to the limiting wedge, and the other end extends out through the wedge mounting groove.

[0012] Furthermore, the clamping assembly also includes a clamping limiting block and a limiting lifting plate. The clamping limiting block is fixedly installed on the side of both the clamping base and the clamping rotating arc plate. The bottom surface of the clamping limiting block is provided with a clamping limiting groove. The limiting lifting plate is fixedly installed at the bottom end of the lifting limiting rod.

[0013] Furthermore, the fixing assembly also includes a clamping rack, a transmission gear, a lifting rack, and a lifting connecting rod. The transmission gear is rotatably mounted on the side of the lifting fixing block. The clamping rack and the lifting rack are respectively disposed on both sides of the transmission gear and are slidably connected to the lifting fixing block. The clamping rack and the lifting rack are both meshed with the transmission gear. One end of the lifting connecting rod is rotatably connected to the bottom end of the lifting rack, and the other end is rotatably connected to the top end of the rotating support rod.

[0014] Furthermore, the fixing frame also includes a support screw, a fixing nut, and a ring fixing block. The ring fixing block is sleeved on the support screw and fixedly connected to the support ring. The fixing nut is located at the upper and lower ends of the ring fixing block and is threadedly engaged with the support screw.

[0015] Furthermore, the clamping and limiting groove is an irregularly shaped groove, and anti-slip stripes are provided on the inner wall of the clamping and limiting groove and the side of the clamping wedge.

[0016] Furthermore, a release stop is fixedly installed on the body of the release lever, and a stop movement hole is opened on the bottom surface of the lifting and moving plate.

[0017] A method of using an orthopedic external fixation device, comprising the above-mentioned orthopedic external fixation device, including the following steps:

[0018] Connect the Kirschner wire to the bone, move the fixed sliding block to move the clamping base so that the top surface of the clamping base contacts the Kirschner wire, rotate the clamping rotating arc plate so that the bottom surface of the clamping rotating arc plate presses against the Kirschner wire, move the lifting limit rod to limit and fix the clamping rotating arc plate, and complete the clamping of the Kirschner wire.

[0019] After clamping is completed, the lifting and fixing block moves to contact the bottom surface of the support ring. The lifting and moving plate moves downward, driving the clamping wedge block to move. The clamping wedge block moves and presses against the fixed limit rod. The lifting and moving plate stops moving, fixing the position of the lifting and fixing block. The fixed sliding block cooperates with the lifting and fixing block and presses against the support ring, thereby fixing the position of the clamping base.

[0020] Compared with the prior art, the present invention has the following advantages: the lifting and fixing block moves to contact the bottom surface of the support ring, the lifting and moving plate moves downward to drive the clamping wedge block to move, the clamping wedge block moves and presses the fixing limit rod, the lifting and moving plate stops moving, so that the position of the lifting and fixing block is fixed, and the fixing sliding block cooperates with the lifting and fixing block to press and fix the support ring, thereby fixing the position of the clamping base. By moving the lifting and moving plate to fix the position of the lifting and fixing block, the frequent disassembly of the fixing bolts is avoided when the support base needs to be adjusted, thus improving the fixing efficiency.

[0021] When the lowering plate moves downward, it drives the rotating support rod to move. The rotating support rod drives the lifting rack to move through the lifting connecting rod. The movement of the lifting rack drives the transmission gear to rotate. The rotation of the transmission gear drives the clamping rack to move upward. When the position of the lowering plate is fixed, the top of the clamping rack contacts the bottom surface of the limiting lifting plate, preventing the limiting lifting plate from moving downward. While fixing the position of the lifting fixed block, the clamping of the rotating arc plate is limited to prevent the lifting limit rod from moving accidentally during use. This releases the rotating arc plate from clamping the Kirschner wire, improving the practicality of the device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is one of the overall structural schematic diagrams provided in the embodiments of the present invention;

[0024] Figure 2 This is one of the partial structural schematic diagrams provided in the embodiments of the present invention;

[0025] Figure 3 This is a second partial structural schematic diagram provided in an embodiment of the present invention;

[0026] Figure 4 This is the third partial structural schematic diagram provided for an embodiment of the present invention;

[0027] Figure 5 This is the fourth partial structural schematic diagram provided for an embodiment of the present invention;

[0028] Figure 6 Fifth partial structural schematic diagram provided for an embodiment of the present invention;

[0029] Figure 7 This is the sixth partial structural schematic diagram provided for an embodiment of the present invention;

[0030] Figure 8 This is the seventh partial structural schematic diagram provided for an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Fixing frame; 101. Support ring; 102. Support screw; 103. Fixing nut; 104. Ring fixing block; 2. Fixing assembly; 201. Fixing sliding block; 202. Lifting fixing block; 203. Fixing limit rod; 204. Lifting moving plate; 205. Support mounting block; 206. Rotating support rod; 207. Rotating limit block; 208. Moving pull rod; 209. Limiting rotating rod; 210. Limiting wedge; 211. Limiting spring; 212. Release 213. Pull rod; 214. Clamping rack; 215. Transmission gear; 216. Lifting rack; 217. Lifting connecting rod; 218. Fixing mechanism; 2101. Clamping wedge; 2102. Extrusion arc block; 2103. Rotating gear; 2104. Moving rack; 2105. Rotating connecting rod; 39. Clamping assembly; 301. Kirschner wire; 302. Clamping base; 303. Clamping rotating arc plate; 304. Lifting limit rod; 305. Clamping limit block; 306. Limiting lifting plate. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] As attached Figure 1 To be continued Figure 8 As shown:

[0035] Example 1:

[0036] The present invention provides an orthopedic external fixation device, including a fixation frame 1, a fixation component 2 and a clamping component 3. The fixation frame 1 includes a support ring 101, a plurality of fixation components 2 are provided on the support ring 101, and clamping components 3 are provided on the fixation components 2.

[0037] The fixing component 2 includes a fixed sliding block 201, a lifting fixing block 202, a fixed limiting rod 203, a lifting moving plate 204, and a fixing mechanism 21. The fixed sliding block 201 is slidably installed on the support ring 101. The fixed limiting rod 203 is fixedly installed below the fixed sliding block 201. The lifting fixing block 202 is slidably sleeved on the fixed limiting rod 203. The lifting moving plate 204 is slidably installed on the side of the lifting fixing block 202. The fixing mechanism 21 is provided on both sides of the lifting moving plate 204. The fixed limiting rod 203 has clamping and limiting grooves on both sides. The fixing mechanism 21 includes a clamping wedge 2101, which is slidably installed on the bottom surface of the lifting fixing block 202.

[0038] When the lifting fixed block 202 contacts the support ring 101, the lifting moving plate 204 can move downward. The downward movement of the lifting moving plate 204 can drive the clamping wedge 2101 to move into the clamping limiting groove. When the clamping wedge 2101 moves and comes into contact with and squeezes the inner wall of the clamping limiting groove, the lifting fixed block 202 can move upward to squeeze the support ring 101.

[0039] The clamping assembly 3 includes a Kirschner wire 301, a clamping base 302, a clamping rotating arc plate 303, and a lifting limit rod 304. The Kirschner wire 301 is disposed on the top surface of the clamping base 302. The clamping base 302 is fixedly installed on the top surface of the fixed sliding block 201. The clamping rotating arc plate 303 is rotatably installed on the top surface of the clamping base 302. The lifting limit rod 304 is disposed on the side of the fixed sliding block 201.

[0040] When the clamping rotating arc plate 303 rotates and the clamping base 302 clamps and fixes the Kirschner wire 301, the lifting limit rod 304 can move and limit the clamping rotating arc plate 303.

[0041] Connect the Kirschner wire 301 to the bone, move the fixed sliding block 201 to drive the clamping base 302 to move, so that the top surface of the clamping base 302 contacts the Kirschner wire 301, rotate the clamping rotating arc plate 303 so that the bottom surface of the clamping rotating arc plate 303 presses against the Kirschner wire 301, move the lifting limit rod 304 to limit and fix the clamping rotating arc plate 303, and complete the clamping of the Kirschner wire 301. This avoids the use of bolts and nuts to fix the Kirschner wire 301 and improves the clamping efficiency.

[0042] After clamping is completed, the lifting and fixing block 202 moves to contact the bottom surface of the support ring 101. The lifting and moving plate 204 moves downward, driving the clamping wedge block 2101 to move. The clamping wedge block 2101 moves and presses against the fixed limit rod 203. The lifting and moving plate 204 stops moving, fixing the position of the lifting and fixing block 202. The fixed sliding block 201 cooperates with the lifting and fixing block 202 and presses against the support ring 101, thereby fixing the position of the clamping base 302. By moving the lifting and moving plate 204 to fix the position of the lifting and fixing block 202, the frequent disassembly of the fixing bolts is avoided when the support base needs to be adjusted, thus improving the fixing efficiency.

[0043] Example 2:

[0044] This embodiment is basically the same as the previous embodiment, except that the fixing mechanism 21 also includes a squeezing arc block 2102, a rotating gear 2103, a moving rack 2104 and a rotating connecting rod 2105. Several squeezing mounting blocks are fixedly installed on the bottom surface of the lifting fixing block 202. The two sides of the squeezing arc block 2102 are rotatably connected to the squeezing mounting blocks. The rotating shaft of the rotating gear 2103 passes through the squeezing mounting blocks and is fixedly connected to the squeezing arc block 2102. The moving rack 2104 is slidably installed on the side of the lifting fixing block 202. The moving rack 2104 meshes with the rotating gear 2103. One end of the rotating connecting rod 2105 is rotatably connected to the moving rack 2104, and the other end is rotatably connected to the lifting moving plate 204. A release stop is fixedly installed on the rod body of the release lever 212. A stop moving hole is opened on the bottom surface of the lifting moving plate 204. The clamping limit groove is a special-shaped groove. Anti-slip stripes are opened on the inner wall of the clamping limit groove and the side of the clamping wedge 2101.

[0045] The lifting moving plate 204 moves downward, which drives the moving rack 2104 to move via the rotating connecting rod 2105. The moving rack 2104 drives the rotating gear 2103 to rotate. The rotating gear 2103 drives the extrusion arc block 2102 to rotate. During the rotation of the extrusion arc block 2102, it contacts and extrudes the clamping wedge block 2101, causing the clamping wedge block 2101 to move into the clamping limiting groove. During the contact and extrusion process between the clamping wedge block 2101 and the inclined surface of the inner wall of the clamping limiting groove, the lifting fixing block 202 extrudes the support ring 101 upward, thus fixing the position of the lifting fixing block 202.

[0046] Example 3:

[0047] This embodiment is basically the same as the previous embodiment, except that the fixing component 2 also includes a support mounting block 205, a rotating support rod 206, a rotating limit block 207, a moving pull rod 208, a limiting rotating rod 209, a limiting wedge block 210, a limiting spring 211, and a release pull rod 212. The support mounting block 205 is fixedly installed on the side of the lifting moving plate 204. The rotating support rod 206 passes through the support mounting block 205 and is rotatably connected to the support mounting block 205. The rotating limit block 207 is fixedly installed... Mounted at the top of the rotating support rod 206, the lifting fixed block 202 has a rotation limiting groove on its side. The movable pull rod 208 is fixedly installed at the bottom end of the rotating support rod 206, and the limiting rotating rod 209 is fixedly installed on the bottom surface of the movable pull rod 208. The lifting moving plate 204 has a fixing limiting groove on its side, and a wedge block mounting groove is formed on the inner wall of the fixing limiting groove. The limiting wedge block 210 is partially slidably installed in the wedge block mounting groove. One end of the limiting spring 211 is fixedly connected to the limiting wedge block 210, and the other end is connected to the wedge block mounting groove. The inner wall is fixedly connected, and one end of the release lever 212 is rotatably connected to the limiting wedge 210, while the other end extends out through the wedge mounting groove. The fixing assembly 2 also includes a clamping rack 213, a transmission gear 214, a lifting rack 215, and a lifting connecting rod 216. The transmission gear 214 is rotatably mounted on the side of the lifting fixing block 202. The clamping rack 213 and the lifting rack 215 are respectively located on both sides of the transmission gear 214 and are slidably connected to the lifting fixing block 202. The lowering rack 215 meshes with the transmission gear 214. One end of the lifting connecting rod 216 is rotatably connected to the bottom end of the lifting rack 215, and the other end is rotatably connected to the top end of the rotating support rod 206. The clamping assembly 3 also includes a clamping limit block 305 and a limit lifting plate 306. The clamping base 302 and the side of the clamping rotating arc plate 303 are both fixedly installed with clamping limit blocks 305. The bottom surface of the clamping limit block 305 is provided with a clamping limit groove. The limit lifting plate 306 is fixedly installed at the bottom end of the lifting limit rod 304.

[0048] When the bottom surface of the clamping rotating arc plate 303 comes into contact with the Kirschner wire 301, the moving limiting lifting plate 306 drives the lifting limiting rod 304 to move upward. The lifting limiting rod 304 passes through the clamping limiting groove of the clamping limiting block 305. When the lifting limiting rod 304 passes through the clamping limiting groove, it can squeeze the clamping limiting groove, causing the rotating clamping arc plate to rotate and squeeze and clamp the Kirschner wire 301.

[0049] Pulling the movable lever 208 causes the rotating support rod 206 to move, and the rotating support rod 206 causes the lifting moving plate 204 to move. After the clamping wedge block 2101 completes clamping the fixed limit rod 203, the movable lever 208 is rotated to drive the rotating support rod 206 to rotate. The rotation of the rotating support rod 206 causes the rotating limit block 207 to rotate into the rotating limit groove, so that the position of the lifting moving plate 204 is fixed.

[0050] When the lifting moving plate 204 moves downward, it drives the rotating support rod 206 to move. The rotating support rod 206 drives the lifting rack 215 to move through the lifting connecting rod 216. The movement of the lifting rack 215 drives the transmission gear 214 to rotate. The rotation of the transmission gear 214 drives the clamping rack 213 to move upward. When the position of the lifting moving plate 204 is fixed, the top of the clamping rack 213 contacts the bottom surface of the limiting lifting plate 306, so that the limiting lifting plate 306 cannot move downward.

[0051] When the rotating support rod 206 rotates, causing the rotating limiting block 207 to enter the rotating limiting groove, the rotating support rod 206 drives the limiting rotating rod 209 to rotate. During the movement of the limiting rotating rod 209, it presses against the limiting wedge block 210, causing the limiting wedge block 210 to move into the wedge block mounting groove. After the limiting rotating rod 209 enters the fixed limiting groove, the limiting wedge block 210 resets, limiting the limiting rotating rod 209 and preventing it from rotating. To release the limit on the limiting rotating rod 209, pull the release lever 212 to move the release stop out of the wedge mounting slot, and move the limiting wedge 210 into the wedge mounting slot. Rotate the release lever 212 to make the release stop contact the bottom surface of the lifting moving plate 204. When the limiting rotating rod 209 moves out of the fixed limiting slot, rotate the release lever 212 to reset the limiting spring 211, and move the release stop into the wedge mounting slot, and reset the limiting wedge 210.

[0052] Example 4:

[0053] This embodiment is basically the same as the previous embodiment, except that the fixing frame 1 also includes a support screw 102, a fixing nut 103 and a ring fixing block 104. The ring fixing block 104 is sleeved on the support screw 102 and is fixedly connected to the support ring 101. The fixing nut 103 is set at the upper and lower ends of the ring fixing block 104 and is threadedly engaged with the support screw 102.

[0054] The ring fixing block 104 moves to adjust the distance between the support rings 101, and the fixing nut 103 limits the ring fixing block 104.

[0055] The sliding installations used in this invention are all interference fits, and the slidingly installed parts can only move under the action of external force.

[0056] A method of using an orthopedic external fixation device, comprising the above-mentioned orthopedic external fixation device, including the following steps:

[0057] Connect the Kirschner wire 301 to the bone, move the fixed sliding block 201 to drive the clamping base 302 to move, so that the top surface of the clamping base 302 contacts the Kirschner wire 301, rotate the clamping rotating arc plate 303 so that the bottom surface of the clamping rotating arc plate 303 presses against the Kirschner wire 301, move the lifting limit rod 304 to limit and fix the clamping rotating arc plate 303, and complete the clamping of the Kirschner wire 301.

[0058] After clamping is completed, the lifting and fixing block 202 moves to contact the bottom surface of the support ring 101. The lifting and moving plate 204 moves downward, driving the clamping wedge block 2101 to move. The clamping wedge block 2101 moves and presses against the fixing limit rod 203. The lifting and moving plate 204 stops moving, fixing the position of the lifting and fixing block 202. The fixing sliding block 201 cooperates with the lifting and fixing block 202 and presses against the support ring 101, thereby fixing the position of the clamping base 302.

[0059] Working principle: Connect the Kirschner wire 301 to the bone, move the fixed sliding block 201, thereby driving the clamping base 302 to move, so that the top surface of the clamping base 302 contacts the Kirschner wire 301, rotate the clamping rotating arc plate 303, so that the bottom surface of the clamping rotating arc plate 303 presses against the Kirschner wire 301. After the bottom surface of the clamping rotating arc plate 303 presses against the Kirschner wire 301, move the limiting lifting plate 306 to drive the lifting limiting rod 304 to move upward. The lifting limiting rod 304 passes through the clamping limiting groove of the clamping limiting block 305. When the lifting limiting rod 304 passes through the clamping limiting groove, it can press against the clamping limiting groove, so that the rotating clamping arc plate rotates to press and clamp the Kirschner wire 301, thus completing the clamping of the Kirschner wire 301.

[0060] After clamping is complete, the lifting and fixing block 202 moves to contact the bottom surface of the support ring 101. Pulling the moving rod 208 causes the rotating support rod 206 to move downward. The rotating support rod 206 causes the lifting moving plate 204 to move. The downward movement of the lifting moving plate 204 drives the moving rack 2104 to move via the rotating connecting rod 2105. The movement of the moving rack 2104 drives the rotating gear 2103 to rotate. The rotation of the rotating gear 2103 drives the extrusion arc block 2102 to rotate. The rotation of the extrusion arc block 2102... During the process, the clamping wedge 2101 is contacted and squeezed, causing it to move into the clamping limiting groove. As the clamping wedge 2101 contacts and squeezes against the inclined inner wall of the clamping limiting groove, the lifting fixing block 202 pushes upward against the support ring 101, fixing its position. After the clamping wedge 2101 completes clamping the fixed limiting rod 203, the rotating moving pull rod 208 drives the rotating support rod 206 to rotate, which in turn drives the rotating limiting block 207. The lifting plate 204 is fixed in position when rotated into the rotation limit groove, and the lifting fixed block 202 is also fixed in position. The fixed sliding block 201 cooperates with the lifting fixed block 202 and presses and fixes the support ring 101, thereby fixing the position of the clamping base 302. When the lifting plate 204 moves downward, it drives the rotating support rod 206 to move. The rotating support rod 206 drives the lifting rack 215 to move through the lifting connecting rod 216. The movement of the lifting rack 215 drives the transmission gear 214 to rotate. The rotation of the transmission gear 214 drives the clamping rack 213 to move upward. When the lifting plate 204 is fixed in position, the top of the clamping rack 213 contacts the bottom surface of the limit lifting plate 306, preventing the limit lifting plate 306 from moving downward. While fixing the position of the lifting fixed block 202, the clamping of the clamping rotating arc plate 303 is limited to prevent the lifting limit rod 304 from moving accidentally during use. This releases the rotating arc plate from clamping the Kirschner wire 301, improving the practicality of the device.

[0061] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An orthopedic external fixation device, comprising a fixation frame (1), a fixation assembly (2), and a clamping assembly (3), characterized in that, The fixing frame (1) includes a support ring (101), a plurality of fixing components (2) are provided on the support ring (101), and a clamping component (3) is provided on the fixing component (2); The fixing component (2) includes a fixed sliding block (201), a lifting fixing block (202), a fixed limiting rod (203), a lifting moving plate (204), and a fixing mechanism (21). The fixed sliding block (201) is slidably installed on the support ring (101). The fixed limiting rod (203) is fixedly installed below the fixed sliding block (201). The lifting fixing block (202) is slidably sleeved on the fixed limiting rod (203). The lifting moving plate (204) is slidably installed on the side of the lifting fixing block (202). The fixing mechanism (21) is provided on both sides of the lifting moving plate (204). The fixed limiting rod (203) has clamping limiting grooves on both sides. The fixing mechanism (21) includes a clamping wedge (2101). The clamping wedge (2101) is slidably installed on the bottom surface of the lifting fixing block (202). When the lifting and fixing block (202) contacts the support ring (101), the lifting and moving plate (204) can move downward. The downward movement of the lifting and moving plate (204) can drive the clamping wedge (2101) to move into the clamping and limiting groove. When the clamping wedge (2101) moves and comes into contact with and squeezes the inner wall of the clamping and limiting groove, the lifting and fixing block (202) can move upward to squeeze the support ring (101). The clamping assembly (3) includes a Kirschner wire (301), a clamping base (302), a clamping rotating arc plate (303), and a lifting limit rod (304). The Kirschner wire (301) is disposed on the top surface of the clamping base (302). The clamping base (302) is fixedly installed on the top surface of the fixed sliding block (201). The clamping rotating arc plate (303) is rotatably installed on the top surface of the clamping base (302). The lifting limit rod (304) is disposed on the side of the fixed sliding block (201). When the clamping rotating arc plate (303) rotates and the clamping base (302) clamps and fixes the Kirschner wire (301), the lifting limit rod (304) can move and limit the clamping rotating arc plate (303).

2. The orthopedic external fixation device according to claim 1, characterized in that, The fixing mechanism (21) further includes a pressing arc block (2102), a rotating gear (2103), a moving rack (2104), and a rotating connecting rod (2105). Several pressing mounting blocks are fixedly installed on the bottom surface of the lifting fixing block (202). The two sides of the pressing arc block (2102) are rotatably connected to the pressing mounting blocks. The rotating shaft of the rotating gear (2103) passes through the pressing mounting blocks and is fixedly connected to the pressing arc block (2102). The moving rack (2104) is slidably installed on the side of the lifting fixing block (202). The moving rack (2104) meshes with the rotating gear (2103). One end of the rotating connecting rod (2105) is rotatably connected to the moving rack (2104), and the other end is rotatably connected to the lifting moving plate (204).

3. The orthopedic external fixation device according to claim 2, characterized in that, The fixing component (2) further includes a support mounting block (205), a rotating support rod (206), a rotating limit block (207), a moving pull rod (208), a limiting rotating rod (209), a limiting wedge (210), a limiting spring (211), and a release pull rod (212). The support mounting block (205) is fixedly installed on the side of the lifting moving plate (204). The rotating support rod (206) passes through the support mounting block (205) and is rotatably connected to the support mounting block (205). The rotating limit block (207) is fixedly installed on the top of the rotating support rod (206). The side of the lifting fixing block (202) is provided with a rotating limit groove. The movable pull rod (208) is fixedly installed at the bottom end of the rotating support rod (206), the limiting rotating rod (209) is fixedly installed on the bottom surface of the movable pull rod (208), the side of the lifting moving plate (204) is provided with a fixed limiting groove, the inner wall of the fixed limiting groove is provided with a wedge block installation groove, the limiting wedge block (210) is partially slidably installed in the wedge block installation groove, one end of the limiting spring (211) is fixedly connected to the limiting wedge block (210), and the other end is fixedly connected to the inner wall of the wedge block installation groove, the top end of one end of the release pull rod (212) is rotatably connected to the limiting wedge block (210), and the other end extends out through the wedge block installation groove.

4. The orthopedic external fixation device according to claim 3, characterized in that, The clamping assembly (3) further includes a clamping limiting block (305) and a limiting lifting plate (306). The clamping base (302) and the clamping rotating arc plate (303) are both fixedly installed with the clamping limiting block (305). The bottom surface of the clamping limiting block (305) is provided with a clamping limiting groove. The limiting lifting plate (306) is fixedly installed at the bottom end of the lifting limiting rod (304).

5. The orthopedic external fixation device according to claim 4, characterized in that, The fixing component (2) further includes a clamping rack (213), a transmission gear (214), a lifting rack (215), and a lifting connecting rod (216). The transmission gear (214) is rotatably mounted on the side of the lifting fixing block (202). The clamping rack (213) and the lifting rack (215) are respectively disposed on both sides of the transmission gear (214) and are slidably connected to the lifting fixing block (202). The clamping rack (213) and the lifting rack (215) are both meshed with the transmission gear (214). One end of the lifting connecting rod (216) is rotatably connected to the bottom end of the lifting rack (215), and the other end is rotatably connected to the top end of the rotating support rod (206).

6. The orthopedic external fixation device according to claim 1, characterized in that, The fixing frame (1) also includes a support screw (102), a fixing nut (103), and a ring fixing block (104). The ring fixing block (104) is sleeved on the support screw (102) and is fixedly connected to the support ring (101). The fixing nut (103) is located at the upper and lower ends of the ring fixing block (104) and is threadedly engaged with the support screw (102).

7. The orthopedic external fixation device according to claim 6, characterized in that, The clamping and limiting groove is an irregular groove, and anti-slip stripes are provided on the inner wall of the clamping and limiting groove and the side of the clamping wedge (2101).

8. The orthopedic external fixation device according to claim 5, characterized in that, The release lever (212) has a release stop fixedly installed on its body, and the bottom surface of the lifting moving plate (204) has a stop moving hole.

9. A method of using an orthopedic external fixation device, characterized in that, The use of the orthopedic external fixation device as described in any one of claims 1-8 includes the following steps: Connect the Kirschner wire (301) to the bone, move the fixed sliding block (201) to drive the clamping base (302) to move, so that the top surface of the clamping base (302) contacts the Kirschner wire (301), rotate the clamping rotating arc plate (303) so that the bottom surface of the clamping rotating arc plate (303) presses against the Kirschner wire (301), move the lifting limit rod (304) to limit and fix the clamping rotating arc plate (303), and complete the clamping of the Kirschner wire (301); After clamping is completed, the lifting and fixing block (202) moves to contact the bottom surface of the support ring (101), the lifting and moving plate (204) moves downward to drive the clamping wedge (2101) to move, the clamping wedge (2101) moves and squeezes the fixed limit rod (203), the lifting and moving plate (204) stops moving, so that the position of the lifting and fixing block (202) is fixed, so that the fixed sliding block (201) cooperates with the lifting and fixing block (202) and squeezes and fixes the support ring (101), thereby fixing the position of the clamping base (302).

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