A lower limb fracture fixation device

Abstract

The present invention relates to the technical field of medical auxiliary equipment, and specifically to a lower limb fracture fixation device. It comprises a step frame, and also comprises: a group of upper enclosures and a lower enclosure, a group of upper enclosures are mutually connected by two upper stays, lower stays are installed on both sides of the lower enclosure, the two lower stays are hinged to the step frame, the two upper stays are respectively hinged to the two lower stays, and the hinges of the two upper stays and the lower stays are provided with angle locking components, which are used to limit the angle between the upper stays and the lower stays by electric control, magnetic control and manual methods. The beneficial effects of the present invention are: when the present fixation device is used, on the one hand, it can realize multi-point contour fixation of the patient's lower limbs, and on the other hand, the present device has both an angle locking fixation mode and a damping free angle variable mode when fixing the patient's lower limbs. At the same time, when the present fixation device is used, it can perform intelligent monitoring of the looseness of the fixation device and intelligent monitoring of the pressure bearing strength of the patient's lower limbs.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary equipment, in particular to a lower limb fracture fixation device. Background Art

[0002] In trauma orthopedics, the fixation frame is an important treatment tool. When the leg is injured or fractured, an orthopedic fixation frame is needed to fix the fracture site.

[0003] In the prior art, a patent document with publication number CN221691741U discloses a trauma orthopedic fixation frame, including: a base, a guide groove, a guide column, a rotating shaft, a gear, a rotating plate, a side plate, an adjusting bolt and a splint. The left and right sides of the upper surface of the base are fixedly provided with guide grooves, the inner side of the guide groove is embedded with a guide column, the upper side of the outer surface of the guide groove is threadedly connected with a positioning bolt, and a rotating shaft is rotatably provided between the two guide columns. The above device enables the two splints to hold the injured or fractured part of the patient's leg in a good lifting state, so as to achieve the effect of supporting the fractured or injured leg of the patient. However, when the above fixation device is used, on the one hand, it is not convenient to realize multi-point contour fixation of the patient's lower limbs, and on the other hand, it cannot have both the locking angle fixation mode and the damping free angle variable mode when fixing the patient's lower limbs. At the same time, when the existing fixation device is used, it is not convenient to perform intelligent monitoring of the looseness of the fixation device and the intelligent monitoring of the pressure strength of the patient's lower limbs. Based on this, the present invention provides a lower limb fracture fixation device to solve the problems raised in the above background technology. Summary of the invention

[0004] The present invention aims at the technical problems existing in the prior art and provides a lower limb fracture fixation device to solve the problems that, when the existing fixation devices are used, on the one hand, it is not convenient to realize multi-point contour fixation of the patient's lower limbs; on the other hand, when fixing the patient's lower limbs, it cannot have both the locking angle fixation mode and the damping free angle variable mode; at the same time, when the existing fixation devices are used, it is not convenient to carry out intelligent monitoring of the looseness of the fixation devices and the intelligent monitoring of the pressure strength of the patient's lower limbs.

[0005] The technical solution of the present invention to solve the above technical problem is as follows: a lower limb fracture fixation device, including a step frame, and also including:

[0006] A group of upper and lower enclosures, wherein the upper enclosures are connected to each other through two upper stays, lower stays are installed on both sides of the lower enclosure, the two lower stays are hinged to the step frame, the two upper stays are respectively hinged to the two lower stays, and the hinges of the two upper stays and the lower stays are provided with angle locking components, which are used to limit the angle between the upper stays and the lower stays by electric control, magnetic control and manual methods, a group of contour belt modules are installed on the upper and lower enclosures, and side clip bags are installed on the inner walls of the upper and lower enclosures;

[0007] A walking detection component is installed on the step frame and is used to monitor the walking status of the lower limbs;

[0008] An air pump, mounted on a lower stay, the air pump being used to control the air pressure in the side clip bag and the contoured belt module;

[0009] The electronically controlled early warning module is used for electronically controlled early warning of the fixed state of the lower limbs.

[0010] Based on the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the upper and lower enclosures each include two symmetrically arranged enclosures, a group of regularly distributed elastic bands are installed between the two enclosures, a cavity connected to an air pump is fixedly opened inside one of the enclosures, the cavities at the upper and lower enclosures are connected to each other, a first air pressure probe for monitoring the air pressure inside the cavity is fixedly provided on one of the enclosures at the lower enclosure, and the inner cavity of each of the side clip bags is connected to the cavity at the corresponding position.

[0012] The beneficial effect of adopting the above further solution is that, when in use, the upper enclosure is fixed to the femur of the user, and the lower enclosure is fixed to the shinbone of the user.

[0013] Furthermore, the contoured strap module includes an outer strap and an inner strap, the two covering bodies in the upper and lower covering bodies are respectively connected to the outer strap and the inner strap, the inner wall of the outer strap is fixedly provided with a Velcro hook surface, the outer wall of the inner strap is fixedly provided with a Velcro fur surface bonded to the Velcro hook surface, the inner wall of the inner strap is fixedly installed with a positive clip bag, and the inner cavity of the positive clip bag is connected to the cavity.

[0014] The beneficial effect of adopting the above further solution is that, when in use, the upper enclosure is fixed to the femur of the user, and the lower enclosure is fixed to the shinbone of the user, and then, through the arrangement of multiple contoured belt modules, the upper enclosure and the lower enclosure are connected to the patient's lower limbs at multiple points and limited at multiple points;

[0015] Through the realization of multi-point connection and multi-point limiting effect of the upper and lower packing bodies, the fixing effect of the upper and lower packing bodies on the thigh and calf of the patient is effectively guaranteed;

[0016] At the same time, when the outer strap is connected to the inner strap, the air pump inflates the side clip bag and the front clip bag with air, and makes the air pressure intensity of the first air pressure probe reach the set value. When the air pressure intensity of the first air pressure probe reaches the set value, the upper and lower bags complete the contour fixation of the patient's lower limbs. Through the bag clamp and the contour fixation structure, the fixation effect and fixation strength of the fractured part of the patient's lower limbs are effectively guaranteed.

[0017] Furthermore, the corner locking component includes a hinge shaft installed on the upper side surface of the upper support bar, the hinge shaft is hinged to the lower support bar, an arc gear ring is installed on the bottom surface of the upper support bar, a brake caliper is arranged on the inner side of the lower support bar, a guide rod is fixedly installed on the back side of the brake caliper, the guide rod is slidably connected to the lower support bar, a limit spring is sleeved on the guide rod and is limited by the lower support bar, two permanent magnet blocks are installed on the back side of the brake caliper, and electromagnetic blocks are fixedly installed on the lower support bar and at the positions corresponding to the two permanent magnet blocks.

[0018] Furthermore, the magnetism of the electromagnetic block after being energized is the same as that of the permanent magnet block, and the electromagnetic block is electrically controlled by an electric control early warning module.

[0019] The beneficial effect of adopting the above further solution is that when the fixing device is used, the fixing device is provided with multiple fixing modes;

[0020] Furthermore, the angle locking component also includes a damping knob threadedly mounted on the hinge shaft, a damping spring is sleeved on the hinge shaft and corresponds to the position between the damping knob and the lower support bar, and a locking bolt adapted to be connected to the arc gear ring is threadedly mounted on the lower support bar.

[0021] The beneficial effect of adopting the above further scheme is that the first fixing mode is the angle locking fixing mode. In the angle locking fixing mode, the lower support bar and the upper support bar are firstly maintained at a preset angle by setting the hinge shaft. After the preset angle is defined, the electromagnetic block is energized. After the electromagnetic block is energized, the magnetism of the electromagnetic block after being energized is the same as that of the permanent magnet block, and a repulsive force is generated. After the repulsive force is generated, the brake caliper completes the angle locking of the arc gear ring.

[0022] The second fixation mode is the damping free angle variable mode. In the damping mode, the thigh and calf of the patient can move relatively with damping. In the damping mode, the rotation damping between the upper support bar and the lower support bar can be effectively controlled by controlling the screwing depth of the damping knob on the hinge shaft. The damping mode is limited to provide a certain degree of freedom for the fixation device. When the patient's lower limbs are fixed, the fracture site is mostly the calf. Through the relative fixation between the patient's thigh and calf, sufficient limit and support force are provided for the calf, thereby ensuring the fixation effect of the fractured part of the patient's calf.

[0023] Furthermore, the walking detection component includes an upper pressure measuring bag installed on the top surface of the step frame and a lower pressure measuring bag installed on the bottom surface of the step frame. Two second air pressure probes are installed on the step frame, and the two second air pressure probes are used to monitor the air pressure inside the upper pressure measuring bag and the lower pressure measuring bag respectively. A group of regularly distributed inner straps are installed on one side of the step frame, and outer straps are installed on the other side of the step frame and at the position corresponding to each inner strap, and each of the outer straps is bonded to the inner strap at the corresponding position.

[0024] The beneficial effect of adopting the above further scheme is that after the patient's lower limbs are fixed, the patient's feet maintain a certain distance from the upper pressure-measuring bag, and the upper pressure-measuring bag is in a non-pressurized state. The upper pressure-measuring bag has an initial value when it is in a non-pressurized device. When the patient uses the fixed lower limbs to walk, the upper pressure-measuring bag monitors the fixation tightness of the patient's lower limbs in real time. When the data difference between the real-time air pressure in the upper pressure-measuring bag and the initial value exceeds the set value, the single-chip microcomputer determines that the fixation device is loose. When the single-chip microcomputer determines that the fixation device is loose, the single-chip microcomputer controls the vibration motor to work and vibrates the patient's thigh to remind the patient that the fixation device is loose. At the same time, the single-chip microcomputer controls the air pump to work and increases the air pressure inside the positive clamp bag and the side clamp bag to further improve the fixation strength of the fixation device on the patient's lower limbs and fractured parts.

[0025] When the patient is in a normal walking state, there is a safe range value inside the pressure measuring bag. When the patient is walking, if the air pressure value inside the pressure measuring bag exceeds the safe range value, the single chip microcomputer controls the sound and light alarm to alarm, and then reminds the patient of the walking posture. Through the walking posture reminder, the compression strength or pressure degree of the fractured lower limb is maintained within the safe range value, thereby effectively improving the safety and intelligence of the fixation device.

[0026] Furthermore, the corner locking component also includes a pressure-linking chamber opened inside the enclosing body at the lower enclosure, the pressure-linking chamber is connected to the inner cavity of the pressure measuring lower bag through an air duct, a T-shaped locking rod is slidably connected to the inner wall of the pressure-linking chamber, a compression spring is sleeved on the T-shaped locking rod and corresponds to the position inside the pressure-linking chamber, and a locking tooth block that is adapted to be connected to the arc gear ring is fixedly installed on the top of the T-shaped locking rod.

[0027] The beneficial effect of adopting the above-mentioned further scheme is that when the step frame is in tight contact with the ground, the locking tooth block extends and automatically limits the angle of the arc gear ring. When the step frame is not in tight contact with the ground, the arc gear ring is in a relatively free state, thereby achieving automatic locking of the angle of the patient's lower limbs when walking and relative freedom of the patient's lower limbs when the patient is not walking.

[0028] Furthermore, the electronically controlled early warning module includes a single-chip microcomputer installed on an upper support bar, a three-axis acceleration sensor and an audible and visual alarm installed on a lower support bar, an electronic control box installed on the other lower support bar, a battery and a remote data transmission module installed inside the electronic control box, the first air pressure probe, the second air pressure probe, the three-axis acceleration sensor, the remote data transmission module, the audible and visual alarm and the battery are all electrically connected to the single-chip microcomputer, and a vibration motor controlled by the single-chip microcomputer is installed on the upper package.

[0029] The beneficial effect of adopting the above further scheme is that, when in use, the three-axis acceleration sensor is set to record the patient's walking data in real time, and the remote data transmission module is set to enable the external terminal to monitor or count the walking data of the lower limbs in real time. Through the walking data monitoring, the external terminal can then intelligently set a rehabilitation plan for the lower limbs according to the walking data;

[0030] The storage battery is used to supply power to the power-using mechanism in the fixed device;

[0031] The first air pressure probe, the second air pressure probe, the three-axis acceleration sensor and the remote data transmission module can all be customized or selected according to actual needs.

[0032] The beneficial effects of the present invention are:

[0033] 1. When the present fixation device is used, on the one hand, it can realize multi-point contour fixation of the patient's lower limbs; on the other hand, the present fixation device has both an angle locking fixation mode and a damping free angle variable mode when fixing the patient's lower limbs. At the same time, when the present fixation device is used, it can intelligently monitor the looseness of the fixation device and the pressure strength of the patient's lower limbs. By realizing the above functions, the function of the present fixation device is effectively improved.

[0034] 2. In the present invention, after the lower limbs of the patient are fixed, the patient's feet maintain a certain distance from the upper pressure-measuring bag, and the upper pressure-measuring bag is in a non-pressurized state. The upper pressure-measuring bag has an initial value when it is in a non-pressurized device. When the patient uses the fixed lower limbs to walk, the upper pressure-measuring bag monitors the tightness of the fixation of the patient's lower limbs in real time. When the data difference between the real-time air pressure in the upper pressure-measuring bag and the initial value exceeds the set value, the single-chip microcomputer determines that the fixing device is loose. When the single-chip microcomputer determines that the fixing device is loose, the single-chip microcomputer controls the vibration motor to work and vibrates the patient's thigh to remind the patient. The vibration reminder , to remind the patient that the fixation device is loose. At the same time, the single-chip microcomputer controls the air pump to work and increase the air pressure inside the positive clamp bag and the side clamp bag to further improve the fixation strength of the fixation device on the patient's lower limbs and fractured parts. When the patient is in a normal walking state, there is a safe range value inside the pressure-measuring bag. When the patient is walking, when the air pressure value in the pressure-measuring bag exceeds the safe range value, the single-chip microcomputer controls the sound and light alarm to alarm, and then reminds the patient of the walking posture. Through the walking posture reminder, the compressive strength or pressure degree of the fractured lower limb is maintained within the safe range value, thereby effectively improving the safety and intelligence of the fixation device.

[0035] 3. The present invention realizes multi-point connection and multi-point limiting effect of the upper bag body and the lower bag body, thereby effectively ensuring the fixing effect of the upper bag body and the lower bag body on the patient's thigh and calf parts. At the same time, when the outer strap and the inner strap are connected, the air pump pressurizes the inside of the side clip bag and the front clip bag and makes the air pressure intensity of the first air pressure probe reach the set value. When the air pressure intensity of the first air pressure probe reaches the set value, the upper bag body and the lower bag body complete the contour fixation of the patient's lower limbs. Through the bag clamp and the contour fixing structure setting, the fixation effect and fixation strength of the fractured part of the patient's lower limbs are effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of a lower limb fracture fixation device of the present invention;

[0037] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0038] Figure 3 For the present invention Figure 1 A schematic diagram of the local enlarged structure at B in the middle;

[0039] Figure 4 For the present invention Figure 1 A schematic diagram of the structure from another perspective;

[0040] Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at C in the middle;

[0041] Figure 6 It is a schematic diagram of the structure of the upper package and the upper support bar of the present invention;

[0042] Figure 7 It is a schematic cross-sectional structure diagram of the brake caliper and the electromagnetic block of the present invention;

[0043] Figure 8 It is a schematic structural diagram of the elastic band and the first air pressure probe of the present invention.

[0044] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0045] 1. Step frame; 2. Upper enclosure; 3. Lower enclosure; 4. Upper support bar; 5. Lower support bar; 6. Side clamp bag; 7. Air pump; 8. Vibration motor; 9. Elastic belt; 10. First air pressure probe; 11. Outer strap; 12. Inner strap; 13. Positive clamp bag; 14. Hinge shaft; 15. Arc gear ring; 16. Brake caliper; 17. Guide rod; 18. Limit spring; 19. Permanent magnet block; 20. Electromagnetic block; 21. Damping knob; 22. Damping spring; 23. Locking bolt; 24. Upper pressure measuring bag; 25. Lower pressure measuring bag; 26. Second air pressure probe; 27. Inner strap; 28. Outer strap; 29. ​​Joint pressure chamber; 30. T-shaped locking rod; 31. Compression spring; 32. Single chip microcomputer; 33. Three-axis acceleration sensor; 34. Sound and light alarm. DETAILED DESCRIPTION

[0046] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0047] The present invention provides the following preferred embodiments

[0048] like Figure 1-8 As shown, a lower limb fracture fixation device includes a step frame 1 and further includes:

[0049] A set of upper enclosures 2 and lower enclosures 3, wherein the upper enclosures 2 are connected to each other through two upper support bars 4, and lower support bars 5 are installed on both sides of the lower enclosures 3;

[0050] The upper enclosure 2 and the lower enclosure 3 each include two symmetrically arranged enclosures, a group of regularly distributed elastic bands 9 are installed between the two enclosures, a cavity connected to the air pump 7 is fixedly opened inside one of the enclosures, the cavities at the upper enclosure 2 and the lower enclosure 3 are connected to each other, a first air pressure probe 10 for monitoring the air pressure inside the cavity is fixedly set on one of the enclosures at the lower enclosure 3, and the inner cavity of each side clip bag 6 is connected to the cavity at the corresponding position.

[0051] When in use, the upper enclosure 2 is fixed to the femur of the user, and the lower enclosure 3 is fixed to the shinbone of the user;

[0052] The two lower stays 5 are hinged to the step frame 1, the two upper stays 4 are hinged to the two lower stays 5 respectively, and the hinges of the two upper stays 4 and the lower stays 5 are provided with angle locking components, which are used to limit the angle between the upper stays 4 and the lower stays 5 by electric control, magnetic control and manual methods. A group of contour belt modules are installed on the upper package 2 and the lower package 3, and the inner walls of the upper package 2 and the lower package 3 are installed with side clip bags 6;

[0053] A walking detection component is installed on the step frame 1 and is used to monitor the walking state of the lower limbs;

[0054] An air pump 7, mounted on the lower stay 5, the air pump 7 is used to control the air pressure in the side clip bag 6 and the contour belt module;

[0055] The contoured strap module includes an outer strap 11 and an inner strap 12. The two covering bodies in the upper covering body 2 and the lower covering body 3 are respectively connected to the outer strap 11 and the inner strap 12. The inner wall of the outer strap 11 is fixedly provided with a Velcro hook surface, and the outer wall of the inner strap 12 is fixedly provided with a Velcro fur surface bonded to the Velcro hook surface. The inner wall of the inner strap 12 is fixedly installed with a positive clip bag 13, and the inner cavity of the positive clip bag 13 is connected to the cavity.

[0056] When in use, the upper enclosure 2 is fixed to the femur of the user, and the lower enclosure 3 is fixed to the shinbone of the user. Subsequently, through the arrangement of a plurality of contoured belt modules, the upper enclosure 2 and the lower enclosure 3 are connected to the patient's lower limbs at multiple points and are limited at multiple points.

[0057] By realizing the multi-point connection and multi-point limiting effect of the upper enclosure 2 and the lower enclosure 3, the fixing effect of the upper enclosure 2 and the lower enclosure 3 on the thigh and calf of the patient is effectively ensured;

[0058] At the same time, when the outer strap 11 is connected to the inner strap 12, the air pump 7 pressurizes the side clip bag 6 and the front clip bag 13 with air, and makes the air pressure intensity of the first air pressure probe 10 reach the set value. When the air pressure intensity of the first air pressure probe 10 reaches the set value, the upper bag 2 and the lower bag 3 complete the contour fixation of the patient's lower limbs. Through the bag clamp and the contour fixing structure setting, the fixation effect and fixation strength of the fractured part of the patient's lower limbs are effectively guaranteed.

[0059] The corner locking component includes a hinge shaft 14 installed on the upper side surface of the upper support bar 4, the hinge shaft 14 is hinged to the lower support bar 5, an arc gear ring 15 is installed on the bottom surface of the upper support bar 4, a brake caliper 16 is arranged on the inner side of the lower support bar 5, a guide rod 17 is fixedly installed on the back side of the brake caliper 16, the guide rod 17 is slidably connected to the lower support bar 5, a limit spring 18 is sleeved on the guide rod 17 and is limited by the lower support bar 5, two permanent magnet blocks 19 are installed on the back side of the brake caliper 16, and electromagnetic blocks 20 are fixedly installed on the lower support bar 5 and at the positions corresponding to the two permanent magnet blocks 19.

[0060] The magnetism of the electromagnetic block 20 after being energized is the same as that of the permanent magnet block 19 , and the electromagnetic block 20 is electrically controlled by the electric control early warning module.

[0061] When the fixing device is used, the fixing device is provided with multiple fixing modes;

[0062] The angle locking component also includes a damping knob 21 threadedly mounted on the hinge shaft 14 , a damping spring 22 is sleeved on the hinge shaft 14 and corresponds to the position between the damping knob 21 and the lower support bar 5 , and a locking bolt 23 adapted to be connected to the arc gear ring 15 is threadedly mounted on the lower support bar 5 .

[0063] The first fixing mode is the angle locking fixing mode. In the angle locking fixing mode, the lower support bar 5 and the upper support bar 4 are firstly maintained at a preset angle by setting the hinge shaft 14. After the preset angle is defined, the electromagnetic block 20 is energized. After the electromagnetic block 20 is energized, the magnetism of the electromagnetic block 20 after being energized is the same as that of the permanent magnet block 19, and a repulsive force is generated. After the repulsive force is generated, the brake caliper 16 completes the angle locking of the arc gear ring 15.

[0064] The second fixing mode is the damping free angle variable mode. In the damping mode, the thigh and calf of the patient can move relatively with damping. In the damping mode, the rotation damping between the upper support bar 4 and the lower support bar 5 can be effectively controlled by controlling the screwing depth of the damping knob 21 on the hinge shaft 14. The damping mode is limited to provide a certain degree of freedom for the fixing device. When the patient's lower limbs are fixed, the fracture site is mostly the calf. Through the relative fixation between the patient's thigh and calf, sufficient limit and support force are provided for the calf, thereby ensuring the fixation effect of the fractured part of the patient's calf.

[0065] The walking detection component includes an upper pressure measuring bag 24 installed on the top surface of the step frame 1 and a lower pressure measuring bag 25 installed on the bottom surface of the step frame 1. Two second air pressure probes 26 are installed on the step frame 1. The two second air pressure probes 26 are used to monitor the air pressure inside the upper pressure measuring bag 24 and the lower pressure measuring bag 25 respectively. A group of regularly distributed inner straps 27 are installed on one side of the step frame 1, and outer straps 28 are installed on the other side of the step frame 1 and at the position corresponding to each inner strap 27. Each outer strap 28 is bonded to the inner strap 27 at the corresponding position.

[0066] After the patient's lower limbs are fixed, the patient's feet maintain a certain distance from the upper pressure-measuring sac 24, and the upper pressure-measuring sac 24 is in a non-pressurized state. The upper pressure-measuring sac 24 has an initial value when it is in a non-pressurized device. When the patient uses the fixed lower limbs to walk, the upper pressure-measuring sac 24 monitors the fixation tightness of the patient's lower limbs in real time. When the data difference between the real-time air pressure in the upper pressure-measuring sac 24 and the initial value exceeds the set value, the single-chip microcomputer 32 determines that the fixation device is loose. When the single-chip microcomputer 32 determines that the fixation device is loose, the single-chip microcomputer 32 controls the vibration motor 8 to work and vibrates the thigh of the patient to remind the patient that the fixation device is loose. At the same time, the single-chip microcomputer 32 controls the air pump 7 to work and increases the air pressure inside the positive clamp sac 13 and the side clamp sac 6 to further improve the fixation strength of the fixation device on the patient's lower limbs and fractured parts.

[0067] When the patient is in a normal walking state, there is a safe range value inside the pressure measuring bag 25. When the patient is walking, when the air pressure value in the pressure measuring bag 25 exceeds the safe range value, the single chip computer 32 controls the sound and light alarm 34 to alarm, and then reminds the patient of the walking posture. Through the walking posture reminder, the compressive strength or pressure degree of the fractured lower limb is maintained within the safe range value, thereby effectively improving the safety and intelligence of the fixation device.

[0068] The corner locking component also includes a pressure-linking chamber 29 opened inside the enclosing body at the lower enclosure 3. The pressure-linking chamber 29 is connected to the inner cavity of the pressure-measuring lower bag 25 through an air duct. A T-shaped locking rod 30 is slidably connected to the inner wall of the pressure-linking chamber 29. A compression spring 31 is sleeved on the T-shaped locking rod 30 and corresponds to the position inside the pressure-linking chamber 29. A locking tooth block that is adapted to be connected to the arc gear ring 15 is fixedly installed at the top end of the T-shaped locking rod 30.

[0069] When the step frame 1 is in tight contact with the ground, the locking tooth block extends and automatically limits the angle of the arc gear ring 15. When the step frame 1 is not in tight contact with the ground, the arc gear ring 15 is in a relatively free state, thereby achieving automatic locking of the angle of the patient's lower limbs when walking and relative freedom of the patient's lower limbs when the patient is not walking.

[0070] The electronically controlled early warning module is used for electronically controlled early warning of the fixed state of the lower limbs.

[0071] The electronically controlled early warning module includes a single-chip microcomputer 32 installed on an upper support bar 4, a three-axis acceleration sensor 33 and an audible and visual alarm 34 installed on a lower support bar 5, and an electronic control box installed on another lower support bar 5. A battery and a remote data transmission module are installed inside the electronic control box. The first air pressure probe 10, the second air pressure probe 26, the three-axis acceleration sensor 33, the remote data transmission module, the audible and visual alarm 34 and the battery are all electrically connected to the single-chip microcomputer 32, and a vibration motor 8 controlled by the single-chip microcomputer 32 is installed on the upper package 2.

[0072] When in use, the three-axis acceleration sensor 33 is set to record the patient's walking data in real time, and the remote data transmission module is set to enable the external terminal to monitor or count the walking data of the lower limbs in real time. Through the walking data monitoring, the external terminal can then intelligently set a rehabilitation plan for the lower limbs according to the walking data;

[0073] The storage battery is used to supply power to the power-using mechanism in the fixed device;

[0074] The first air pressure probe 10, the second air pressure probe 26, the three-axis acceleration sensor 33 and the remote data transmission module can all be customized or selected according to actual needs.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lower limb fracture fixation device, comprising a step frame (1), characterized in that: Also includes: A group of upper enclosures (2) and lower enclosures (3), wherein the upper enclosures (2) are connected to each other via two upper stays (4), lower stays (5) are installed on both sides of the lower enclosures (3), the two lower stays (5) are hinged to the step frame (1), the two upper stays (4) are hinged to the two lower stays (5) respectively, and angle locking components are provided at the hinges between the two upper stays (4) and the lower stays (5), the angle locking components are used to limit the angle between the upper stays (4) and the lower stays (5) by electric control, magnetic control and manual means, a group of contour belt modules are installed on the upper enclosures (2) and the lower enclosures (3), and side clip bags (6) are installed on the inner walls of the upper enclosures (2) and the lower enclosures (3); A walking detection component, mounted on the step frame (1) and used for monitoring the walking state of the lower limbs; An air pump (7) mounted on the lower support bar (5), the air pump (7) being used to control the air pressure in the side clip bag (6) and the contoured belt module; The electronically controlled early warning module is used for electronically controlled early warning of the fixed state of the lower limbs; The contoured belt module comprises an outer belt (11) and an inner belt (12); the two covering bodies in the upper covering body (2) and the lower covering body (3) are respectively connected to the outer belt (11) and the inner belt (12); the inner wall of the outer belt (11) is fixedly provided with a Velcro hook surface; the outer wall of the inner belt (12) is fixedly provided with a Velcro fur surface bonded to the Velcro hook surface; the inner wall of the inner belt (12) is fixedly provided with a positive clip bag (13); the positive clip bag (13) is fixedly installed The inner cavity of the upper support bar (3) is connected to the cavity; the corner locking component comprises a hinge shaft (14) mounted on the upper side of the upper support bar (4), the hinge shaft (14) is hinged to the lower support bar (5), the bottom surface of the upper support bar (4) is mounted with an arc gear ring (15), the inner side of the lower support bar (5) is provided with a brake caliper (16), the back side of the brake caliper (16) is fixedly mounted with a guide rod (17), the guide rod (17) is slidably connected to the lower support bar (5), and the upper sleeve of the guide rod (17) is provided with a guide rod (17). A limit spring (18) is provided which is limited by the lower support bar (5); two permanent magnet blocks (19) are installed on the back of the brake caliper (16); and electromagnetic blocks (20) are fixedly installed on the lower support bar (5) and at positions corresponding to the two permanent magnet blocks (19); the angle locking component also includes a damping knob (21) threadedly installed on the hinge shaft (14); and a damping spring (22) is sleeved on the hinge shaft (14) and at a position corresponding to the damping knob (21) and the lower support bar (5). ), a locking bolt (23) adapted to be connected to the arc gear ring (15) is threadedly mounted on the lower support bar (5); the walking detection component comprises an upper pressure measuring bag (24) mounted on the top surface of the step frame (1) and a lower pressure measuring bag (25) mounted on the bottom surface of the step frame (1), and two second air pressure probes (26) are mounted on the step frame (1), and the two second air pressure probes (26) are used to monitor the air pressure inside the upper pressure measuring bag (24) and the lower pressure measuring bag (25) respectively; The corner locking component also includes a pressure-linking cavity (29) opened inside the enclosing body at the lower enclosing body (3), the pressure-linking cavity (29) being connected to the inner cavity of the pressure-measuring lower bag (25) through an air guide tube, a T-shaped locking rod (30) being slidably connected to the inner wall of the pressure-linking cavity (29), a compression-resistant spring (31) being sleeved on the T-shaped locking rod (30) and corresponding to the position inside the pressure-linking cavity (29), and a locking tooth block adapted to be connected to the arc gear ring (15) being fixedly mounted on the top end of the T-shaped locking rod (30).

2. A lower limb fracture fixation device according to claim 1, characterized in that: The upper enclosure (2) and the lower enclosure (3) each comprise two symmetrically arranged enclosures, a group of regularly distributed elastic bands (9) being installed between the two enclosures, a cavity connected to the air pump (7) being fixedly opened inside one of the enclosures, the cavities at the upper enclosure (2) and the lower enclosure (3) being connected to each other, a first air pressure probe (10) for monitoring the air pressure inside the cavity being fixedly arranged on one of the enclosures at the lower enclosure (3), and the inner cavity of each of the side clip bags (6) being connected to the cavity at the corresponding position.

3. A lower limb fracture fixation device according to claim 2, characterized in that: The magnetism of the electromagnetic block (20) after being energized is the same as that of the permanent magnet block (19), and the electromagnetic block (20) is electrically controlled by an electrically controlled early warning module.

4. A lower limb fracture fixation device according to claim 3, characterized in that: A group of regularly distributed inner binding straps (27) are installed on one side of the step frame (1), and outer binding straps (28) are installed on the other side of the step frame (1) at positions corresponding to each inner binding strap (27), and each outer binding strap (28) is bonded to and matched with the inner binding strap (27) at a corresponding position.

5. A lower limb fracture fixation device according to claim 4, characterized in that: The electric control early warning module comprises a single chip microcomputer (32) mounted on an upper support bar (4), a three-axis acceleration sensor (33) and an audible and visual alarm (34) mounted on a lower support bar (5), and an electric control box mounted on the other lower support bar (5), wherein a storage battery and a remote data transmission module are respectively mounted inside the electric control box.

6. A lower limb fracture fixation device according to claim 5, characterized in that: The first air pressure probe (10), the second air pressure probe (26), the three-axis acceleration sensor (33), the remote data transmission module, the sound and light alarm (34) and the storage battery are all electrically connected to the single-chip computer (32), and a vibration motor (8) controlled by the single-chip computer (32) is installed on the upper package (2).

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