Minimally invasive fixing and reinforcing device for bone fracture in orthopedics department

Abstract

The invention discloses an orthopedic fracture minimally invasive fixing and reinforcing device which comprises a fixing and clamping device, an attaching sliding component, a supporting angle adjusting and fixing device and a power-on unlocking component. The invention belongs to the field of medical instruments, and particularly relates to an orthopedic fracture minimally invasive fixing and reinforcing device. According to the supporting angle adjusting and fixing device, the ratchet wheel outer ring and the ratchet wheel inner ring are matched in a rotating mode, the physical characteristic of limiting the rotating direction between ratchet wheel teeth is utilized, position fixing of a fracture part is assisted, the burden of the injured part of the limb is relieved, recovery is promoted, and meanwhile the fracture position is fixed. The movable range of the injured part of the limb is effectively limited, wound healing is promoted, compared with a traditional neck sling, the experience feeling of a patient is more comfortable, and for cross-joint fracture fixation, the comfortable limb angle of the patient is selected for fixation.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and specifically refers to a minimally invasive fixation and reinforcement device for orthopedic fractures. Background Art

[0002] Minimally invasive fracture fixation surgery is a method of stabilizing the fracture site by implanting a fixation device into the body through a small incision or percutaneous puncture. It has the characteristics of less trauma and faster recovery. Commonly used internal fixation devices include plates, screws, intramedullary nails, etc. The choice of which device depends on the type and location of the fracture. The fixation device helps keep the fracture ends in the correct position by providing mechanical support to promote healing. In order to achieve the fixation effect and not easily cause infection to the wound, the fixator is usually placed slightly away from the fracture site. When the injury occurs at the upper or lower end of the limb, close to the joint, in order to facilitate fixation, the entire limb is restricted, which greatly affects the patient's physical sensation. Summary of the invention

[0003] In view of the above situation, the present invention provides a minimally invasive fixation and reinforcement device for orthopedic fractures, which assists in fixing the position of the fracture site by adjusting the rotational coordination between the ratchet outer ring and the ratchet inner ring in the proposed support angle fixation device and utilizing the physical property of limiting the rotational direction between the ratchet teeth. While reducing the burden on the injured limb and promoting recovery, it effectively limits the range of motion of the injured limb and promotes wound healing. Compared with traditional neck slings, patients have a more comfortable experience. For cross-joint fracture fixation, a limb angle that is more comfortable for the patient is selected for fixation.

[0004] The technical solution adopted by the present invention is as follows: The present invention proposes a minimally invasive fixation and reinforcement device for orthopedic fractures, including a fixed clamping device, a fitting sliding component, a support angle adjustment fixing device and an electrically powered unlocking component, the fitting sliding component and the fixed clamping device are arranged to slide interlaced, the support angle adjustment fixing device is fixedly connected to the fixed clamping device, the electrically powered unlocking component is interlaced and engaged with the support angle adjustment fixing device, the fixed clamping device includes a fixed splint part, a sliding guide and an interlaced connecting part, the sliding guide is fixedly provided on the outer wall of the fixed splint part, and the interlaced connecting part is interlaced with the fixed splint part.

[0005] Furthermore, the fixed clamping device is provided with two groups, each group of the fixed clamping device is provided with two fixed splint parts, each of the fixed splint parts is fixedly connected with two sliding guide parts, each group of the fixed clamping device is provided with two interpenetrating connecting parts, the two interpenetrating connecting parts interpenetrate and fix the two fixed splint parts, connecting openings are provided at both ends of the fixed splint parts, a connecting short shaft is fixedly provided at the inner wall of the fixed splint part, a contact pad is fixedly provided at the extension end of the connecting short shaft, and air permeable holes are provided on the contact pad in a linear array from top to bottom.

[0006] Preferably, the sliding guide comprises a vertical sliding guide plate, a sliding guide groove is formed through the vertical sliding guide plate, inner wall teeth are distributed in a linear array on the inner wall of the vertical sliding guide plate, the insertion connecting member comprises a connecting bolt and a locking nut, the connecting bolt is inserted into the connecting opening, and the locking nut is connected to the connecting bolt by threaded cooperation.

[0007] As a further preferred embodiment of the present invention, the fitting sliding component includes a sliding main body and a top fixing member, the top fixing member is fixedly connected to the top of the sliding main body, the sliding main body includes an inner wall sliding block, an intermediate connecting block and an outer wall sliding block, the intermediate connecting block is fixedly connected between the inner wall sliding block and the outer wall sliding block, the inner wall of the inner wall sliding block slides in contact with the inner wall of the vertical sliding guide piece, the inner wall of the outer wall sliding block slides in contact with the outer wall of the vertical sliding guide piece, the intermediate connecting block slides between the two vertical sliding guide pieces, and a connecting bolt is fixedly provided on the outer wall of the outer wall sliding block.

[0008] Furthermore, the top fixing member includes a main connecting member and a fitting component, the fitting component and the main connecting member are interspersed, the main connecting member includes an ear-shaped protrusion, an interspersed bolt and a tightening nut, one end of the interspersed bolt is fixedly connected to the inner wall of the ear-shaped protrusion, and the tightening nut is connected to the interspersed bolt by threaded cooperation. The fitting sliding component proposed in the device of the present invention is connected to the fixed clamping device and the support angle adjustment fixing device, and the top fixing member on one side moves up and down in the sliding guide, so that the sliding main body on the same side drives the support angle adjustment device to undergo a slight change in height, thereby improving the flexibility of the device itself, and by adjusting the various components in the early stage, the patient can maintain a comfortable angle in the subsequent recovery stage, avoiding pulling due to uncomfortable angles between components, which will adversely affect the patient's recovery progress.

[0009] Preferably, the fitting component includes a fitting plate, the fitting plate is provided with a plate hole, the fitting plate is inserted on the insertion bolt through the plate hole, the tightening nut is provided on the back side of the fitting plate, the inner wall of the fitting plate is fixedly provided with fitting teeth, the fitting teeth are engaged with the inner wall teeth in size, the fitting plate proposed in the device of the present invention moves up and down along the vertical sliding guide along with the main connecting part, as the locking nut is tightened to connect the connecting bolt by tightening, the locking nut pushes the fitting plate to fit the vertical sliding guide, the fitting teeth are engaged with the inner wall teeth, so that the height between the fitting component and the sliding guide is fixed in this way, and the relative height of the fitting sliding component and the fixed clamping device is fixed.

[0010] As a further preferred embodiment of the present invention, the support angle adjustment fixing device includes a fixed support member and an angle rotating member, the fixed support member and the angle rotating member are arranged in an interlaced manner, the fixed support member includes a vertical support plate, a mounting hole, a ratchet outer ring, a support spring, a shielding ring plate and a wrapping ring, the upper end of the vertical support plate is penetrated by a connecting hole, the connecting bolt is inserted in the connecting hole, the connecting bolt is fixed to the vertical support plate, the bottom of the vertical support plate is penetrated by a mounting hole, a transverse sliding groove is fixedly provided in the mounting hole, the ratchet outer ring is arranged in the mounting hole, and transverse sliding blocks are fixedly provided on both sides of the ratchet outer ring, and the transverse sliding blocks slide in the transverse sliding grooves.

[0011] Furthermore, the outer side of the ratchet outer ring is fixedly connected to one end of the support spring, the blocking ring plate is fixedly connected to the outward end of the transverse slide groove, the support spring is fixedly connected between the outer wall of the ratchet outer ring and the inner wall of the blocking ring plate, the blocking ring plate is penetrated by a through hole, the through hole is connected to the transverse slide groove, the wrapping ring is wrapped around the outside of the blocking ring plate, and the wrapping ring is fixedly connected between the outer wall of the vertical support plate and the inner wall of the blocking ring plate.

[0012] Preferably, the angle rotating member includes a ratchet inner ring, a fixed shaft, a rotating plate, an extension plate, a support main shaft and a bone screw connecting member, the ratchet inner ring is fixedly arranged on the outside of one end of the fixed shaft, and the other end of the fixed shaft is fixedly connected to the outside of the rotating plate, the ratchet outer ring and the ratchet inner ring are arranged concentrically, the gear teeth of the ratchet inner ring are engaged with the gear teeth of the ratchet outer ring, one end of the rotating plate is fixed to the extension plate, and the other end of the extension plate is fixed to the supporting main shaft, and the output end of the supporting main shaft is fixedly provided with a bone screw connecting member, the bone screw connecting member includes a bone screw fixing ring, and a bone screw insertion hole is circumferentially penetrated on the bone screw fixing ring, the ratchet inner ring proposed in the device of the present invention is meshed with the gear teeth of the ratchet outer ring, and the characteristics of the ratchet itself are utilized to ensure that the ratchet inner ring rotates in a single direction within the ratchet outer ring, and the rotational force in the opposite direction is limited. In this way, the angle is locked, effectively limiting the patient's range of motion.

[0013] As a further preferred embodiment of the present invention, the powered unlocking component includes a drag rod, a connecting rod shaft and a control electric plate. The connecting rod shaft is fixedly connected to the two end portions of the drag rod. The end portion of the connecting rod shaft is fixedly provided with a powered adsorption front end. The control electric plate is fixedly connected to the connecting rod shaft. The powered adsorption front end adsorbs the ratchet outer ring when powered. The control electric plate is electrically connected to the powered adsorption front end. The ratchet outer ring proposed in the device of the present invention is fixedly connected to its own transverse slider to ensure that the ratchet outer ring and the vertical support plate are fixed. The connecting holes are snap-connected, and the ratchet outer ring slides effectively in the connecting holes, and the horizontal slider slides in the horizontal slide groove. When the support angle adjustment fixing device needs to be adjusted and reset, the power-on unlocking component is energized, and the energized adsorption front end is inserted into the insertion hole of the shielding ring plate, and the ratchet outer ring is adsorbed and dragged outward to release the restriction of the ratchet outer ring on the ratchet inner ring, and release the angle restriction formed between the vertical support plate and the rotating plate, so that doctors and patients can readjust the support angle adjustment fixing device conveniently.

[0014] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The fitting sliding member proposed in the device of the present invention is connected with the fixing clamping device and the supporting angle adjustment fixing device. The top fixing member on one side moves up and down in the sliding guide member, so that the sliding main body on the same side drives the supporting angle adjustment device to undergo a slight change in height, thereby improving the flexibility of the device itself. In the early stage, by adjusting the various components, the patient can maintain a comfortable angle in the subsequent recovery stage, avoiding pulling due to the uncomfortable angle between the components, which will have an adverse effect on the patient's recovery progress; (2) The bonding plate proposed in the device of the present invention moves up and down along the vertical sliding guide piece along with the main connecting member. As the locking nut is tightened to connect the connecting bolt, the locking nut pushes the bonding plate to fit the vertical sliding guide piece, and the bonding teeth are engaged with the inner wall teeth, thereby fixing the height between the bonding member and the sliding guide, and fixing the relative height between the bonding sliding member and the fixing clamping device; (3) The inner ratchet ring and the outer ratchet ring of the device of the present invention are meshed with each other, and the characteristics of the ratchet are utilized to ensure that the inner ratchet ring rotates in a single direction inside the outer ratchet ring, thereby limiting the rotational force in the opposite direction. In this way, the angle is locked, effectively limiting the patient's range of motion; (4) The ratchet outer ring proposed in the device of the present invention is fixedly connected with its own transverse slider to ensure that the ratchet outer ring is engaged with the connecting hole of the vertical support plate, and the ratchet outer ring slides effectively in the connecting hole, and the transverse slider slides in the transverse slide groove. When the support angle adjustment fixing device needs to be adjusted and reset, the power-on unlocking component is energized, and the front end of the power-on adsorption is inserted into the insertion hole of the shielding ring plate, and the ratchet outer ring is adsorbed and dragged outward, thereby releasing the restriction of the ratchet outer ring on the ratchet inner ring, releasing the angle restriction formed between the vertical support plate and the rotating plate, and facilitating the doctor and patient to readjust the support angle adjustment fixing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a vertical view of a minimally invasive fixation and reinforcement device for orthopedic fractures proposed by the present invention; Figure 2 A side view of a minimally invasive fixation and reinforcement device for orthopedic fractures proposed by the present invention Figure 1 ; Figure 3 A side view of a minimally invasive fixation and reinforcement device for orthopedic fractures proposed by the present invention Figure 2 ; Figure 4 for Figure 2 A cross-sectional view along the cutting line AA; Figure 5 for Figure 4 A cross-sectional view along the cutting line BB; Figure 6 for Figure 2 A cross-sectional view along the cutting line CC; Figure 7 for Figure 3 A cross-sectional view along the cutting line DD; Figure 8 This is a schematic elevation diagram of the interlaced structure of the power-on unlocking component proposed in the present invention; Fig. 9 for Figure 8 A partial enlarged view of point Ⅰ in the middle; Fig.10 A schematic cross-sectional view of the interpenetrating connection structure of the power-on unlocking component proposed in the present invention; Fig.11 This is a schematic diagram of the structure of the support angle adjustment fixing device proposed by the present invention; Fig.12 This is a schematic diagram of the structure of the fixing and clamping device proposed by the present invention; Fig.13 This is a schematic diagram of the structure of the sliding member provided by the present invention; Fig.14 This is a schematic structural diagram of the power-on unlocking component proposed in the present invention.

[0016] Among them, 1. fixed clamping device, 2. fitted sliding component, 3. support angle adjustment fixing device, 4. power-on unlocking component, 5. fixed splint, 6. sliding guide, 7. interlaced connecting member, 8. sliding main body, 9. top fixing member, 10. fixed support member, 11. angle rotating member, 12. drag rod, 13. connecting rod shaft, 14. control electric board, 15. connecting opening, 16. vertical sliding guide, 17. sliding guide groove, 18. inner wall teeth, 19. connecting bolt, 20. locking nut, 21. inner wall sliding block, 22. middle connecting block, 23. outer wall sliding block, 24. connecting bolt, 25. main connecting member, 26. fitted component , 27, ear-shaped protrusion, 28, insertion bolt, 29, tightening nut, 30, fitting plate, 31, fitting teeth, 32, plate hole, 33, vertical support plate, 34, placement hole, 35, ratchet outer ring, 36, support spring, 37, shielding ring plate, 38, wrapping ring, 39, connecting hole, 40, horizontal slide groove, 41, horizontal slider, 42, insertion hole, 43, ratchet inner ring, 44, fixed shaft, 45, rotating plate, 46, extension plate, 47, support spindle, 48, bone screw connector, 49, bone screw fixing ring, 50, bone screw insertion hole, 51, electrified adsorption front end, 52, connecting short shaft, 53, contact pad, 54, breathable hole.

[0017] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0020] like Figure 1-Figure 14As shown, the present invention proposes a minimally invasive fixation and reinforcement device for orthopedic fractures, including a fixed clamping device 1, a fitting sliding component 2, a support angle adjustment fixture 3 and an electrically powered unlocking component 4, the fitting sliding component 2 and the fixed clamping device 1 are arranged to slide interlaced, the support angle adjustment fixture 3 is fixedly connected to the fixed clamping device 1, the electrically powered unlocking component 4 is interlaced and engaged with the support angle adjustment fixture 3, the fixed clamping device 1 includes a fixed splint member 5, a sliding guide 6 and an interlaced connector 7, the sliding guide 6 is fixedly arranged on the outer wall of the fixed splint member 5, and the interlaced connector 7 is interlaced with the fixed splint member 5.

[0021] There are two groups of fixed clamping devices 1, each group of fixed clamping devices 1 is provided with two fixed splint parts 5, each fixed splint part 5 is fixedly connected with two sliding guide parts 6, each group of fixed clamping devices 1 is provided with two inserted connecting parts 7, the two inserted connecting parts 7 insert and fix the two fixed splint parts 5, and connecting openings 15 are provided at both ends of the fixed splint parts 5. A connecting short shaft 52 is fixedly provided on the inner wall of the fixed splint part 5, and a contact pad 53 is fixedly provided at the extended end of the connecting short shaft 52, and a breathable hole 54 is provided on the contact pad 53 in a linear array from top to bottom.

[0022] The sliding guide 6 includes a vertical sliding guide plate 16, a sliding guide groove 17 is opened through the vertical sliding guide plate 16, and inner wall teeth 18 are distributed in a linear array on the inner wall of the vertical sliding guide plate 16. The inserted connecting member 7 includes a connecting bolt 19 and a locking nut 20. The connecting bolt 19 is inserted into the connecting opening 15, and the locking nut 20 is connected to the connecting bolt 19 by threaded cooperation.

[0023] The fitting sliding component 2 includes a sliding main body 8 and a top fixing member 9, the top fixing member 9 is fixedly connected to the top of the sliding main body 8, the sliding main body 8 includes an inner wall sliding block 21, an intermediate connecting block 22 and an outer wall sliding block 23, the intermediate connecting block 22 is fixedly connected between the inner wall sliding block 21 and the outer wall sliding block 23, the inner wall of the inner wall sliding block 21 slides in contact with the inner wall of the vertical sliding guide 16, the inner wall of the outer wall sliding block 23 slides in contact with the outer wall of the vertical sliding guide 16, the intermediate connecting block 22 slides between the two vertical sliding guides 16, and a connecting bolt 24 is fixedly provided on the outer wall of the outer wall sliding block 23.

[0024] The top fixing part 9 includes a main connecting part 25 and a fitting component 26, and the fitting component 26 is arranged interspersed with the main connecting part 25. The main connecting part 25 includes an ear-shaped protrusion 27, an insertion bolt 28 and a tightening nut 29. One end of the insertion bolt 28 is fixedly connected to the inner wall of the ear-shaped protrusion 27, and the tightening nut 29 is connected to the insertion bolt 28 by threaded cooperation.

[0025] The bonding component 26 includes a bonding plate 30, which is provided with a plate hole 32. The bonding plate 30 is inserted into the insertion bolt 28 through the plate hole 32. The tightening nut 29 is arranged on the back side of the bonding plate 30. The inner wall of the bonding plate 30 is fixedly provided with a bonding tooth 31, and the bonding tooth 31 is engaged with the inner wall tooth 18 in size.

[0026] The support angle adjustment fixing device 3 includes a fixed support member 10 and an angle rotating member 11. The fixed support member 10 and the angle rotating member 11 are arranged in an interlaced manner. The fixed support member 10 includes a vertical support plate 33, a placement hole 34, a ratchet outer ring 35, a support spring 36, a shielding ring plate 37 and a wrapping ring 38. The upper end of the vertical support plate 33 is penetrated by a connecting hole 39, and the connecting bolt 24 is inserted in the connecting hole 39. The connecting bolt 24 is fixed to the vertical support plate 33. The bottom of the vertical support plate 33 is penetrated by a placement hole 34, and a horizontal slide groove 40 is fixedly provided in the placement hole 34. The ratchet outer ring 35 is arranged in the placement hole 34, and horizontal sliders 41 are fixedly provided on both sides of the ratchet outer ring 35. The horizontal sliders 41 slide in the horizontal slide groove 40.

[0027] The outer side of the ratchet outer ring 35 is fixedly connected to one end of the support spring 36, the shielding ring plate 37 is fixedly connected to the outward end of the horizontal slide groove 40, the support spring 36 is fixedly connected between the outer wall of the ratchet outer ring 35 and the inner wall of the shielding ring plate 37, the shielding ring plate 37 is penetrated by an insertion hole 42, the insertion hole 42 is connected to the horizontal slide groove 40, the wrapping ring 38 is wrapped around the outside of the shielding ring plate 37, and the wrapping ring 38 is fixedly connected between the outer wall of the vertical support plate 33 and the inner wall of the shielding ring plate 37.

[0028] The angle rotating member 11 includes a ratchet inner ring 43, a fixed shaft 44, a rotating plate 45, an extension plate 46, a supporting main shaft 47 and a bone screw connector 48. The ratchet inner ring 43 is fixedly arranged on the outside of one end of the fixed shaft 44, and the other end of the fixed shaft 44 is fixedly connected to the outside of the rotating plate 45. The ratchet outer ring 35 is arranged concentrically with the ratchet inner ring 43, and the gear teeth of the ratchet inner ring 43 are engaged with the gear teeth of the ratchet outer ring 35. One end of the rotating plate 45 is fixedly connected to the extension plate 46, and the other end of the extension plate 46 is fixedly connected to the supporting main shaft 47. The extension plate 46 is fixedly connected to the supporting main shaft 47. The support main shaft 47 is provided with a bone screw connector 48 at its extended end. The bone screw connector 48 includes a bone screw fixing ring 49, and a bone screw insertion hole 50 is circumferentially opened on the bone screw fixing ring 49.

[0029] The powered unlocking component 4 includes a drag rod 12, a connecting rod shaft 13 and a control electrical board 14. The connecting rod shaft 13 is fixedly connected to the two end portions of the drag rod 12. The end portion of the connecting rod shaft 13 is fixedly provided with a powered adsorption front end 51. The control electrical board 14 is fixedly connected to the connecting rod shaft 13. The powered adsorption front end 51 adsorbs the ratchet outer ring 35 when powered. The control electrical board 14 is electrically connected to the powered adsorption front end 51.

[0030] In specific use, taking a forearm fracture as an example, after the operation, the patient's injured arm is in a horizontal position as a whole to wear and install the device. First, the two fixed splints 5 are clamped to the patient's upper arm near the joint, and the tightening nut 29 in the fitting sliding member 2 is in a relaxed state. The main connecting member 25 does not force the fitting member 26 to fit with the vertical sliding guide 16. It should be noted that during the initial installation process, it is necessary to pay attention to the rotation direction of the ratchet inner ring 43 in the ratchet outer ring 35. The rotation direction of the ratchet inner ring 43 should be consistent with the internal rotation direction of the patient's forearm. The connecting bolt 19 of the connecting member 7 is inserted into the connecting opening 15 of the two fixed splint members 5, and the two fixed splint members 5 are fixed by rotating and locking the locking nut 20 to clamp the upper arm. The contact pad 53 connected to the inner wall of the fixed splint member 5 is in contact with the upper arm skin, and the contact area with the upper arm is reduced through the ventilation hole 54, which reduces the stuffiness and improves the comfort. The exposed part of the bone screw of the patient's injury is inserted into the bone screw insertion hole 50 of the bone screw fixing ring 49 and fixed. The support spindle 47, the extension plate 46 and the rotating plate 45 connected to the bone screw connector 48 are The bone screw connector 48 is extended toward the joint, and the horizontal angle of the bone screw connector 48 is adjusted according to the insertion angle of the bone screw in the bone screw insertion hole 50. At this time, the two support spindles 47 respectively connected to the bone screw connector 48 have a height deviation in the horizontal angle, and the two groups of angle rotating members 11 respectively drive the two groups of fixed support members 10 and the fixed splint member 5 to shift their positions. At this time, the medical staff rotates and moves the fixed splint member 5. During the movement, the fitting sliding member 2 presents an adaptive position movement state to ensure that the vertical sliding guide 16 and the vertical support plate 33 It is arranged in a vertical state; when the angle of the fixed clamping plate 5 is adjusted, the main connecting member 25 fixedly connected to the sliding main body 8 slides along the sliding guide groove 17 of the vertical sliding guide 16 to a stable state, and by rotating and tightening the nut 29, the fitting plate 30 on the inserted bolt 28 is pushed to fit the inner wall of the vertical sliding guide 16, and the fitting teeth 31 are engaged with the inner wall teeth 18 to fix the height position of the fitting component 26 and the sliding guide 6, thereby fixing the height position between the sliding body and the fixed clamping plate 5, and fixing the height position between the vertical support plate 33 and the fixed clamping plate 5.

[0031] After the installation is completed, the patient bends his arm according to his own condition, and the internal rotation of the forearm drives the angle rotating part 11 to move. The rotating plate 45 drives the ratchet inner ring 43 on the fixed shaft 44 to rotate in the ratchet outer ring 35 for unidirectional movement until a comfortable angle is reached. At this time, the ratchet inner ring 43 can no longer rotate in the opposite direction in the ratchet outer ring 35, thereby limiting the angle formed by the forearm and the upper arm.

[0032] When the angle is rotated excessively or needs to be readjusted, the connecting rod shaft 13 of the power-on unlocking member 4 is inserted into the insertion hole 42 of the shielding ring plate 37. When the power is on, the power-on adsorption front end 51 is in an adsorption state, adsorbing the outer ring 35 of the ratchet wheel outward. The operator holds the drag rod 12 and drags it outward, and the ratchet outer ring 35 moves with the power-on adsorption front end 51. During the movement of the ratchet outer ring 35, the transverse slider 41 slides in the transverse slide groove 40, and the outer squeezing support of the ratchet outer ring 35 is pressed outward. The support spring 36 is used until the ratchet outer ring 35 moves to a range where the ratchet inner ring 43 cannot be restricted. There is no restraint between the rotating plate 45 and the vertical support plate 33. The rotating plate 45 can readjust the angle as the patient's forearm moves. When the angle adjustment is completed, the power supply is stopped and the unlocking component 4 is energized. The energized adsorption front end 51 has no adsorption capacity. Under the resetting action of the support spring 36, the ratchet outer ring 35 is pushed into the connecting hole 39 of the vertical support plate 33, and the traction restriction on the ratchet inner ring 43 is restored.

[0033] The above is the overall workflow of the present invention, and you can repeat this step next time you use it.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A minimally invasive fixation and reinforcement device for orthopedic fractures, characterized by: It includes a fixed clamping device, a fitting sliding component, a support angle adjustment fixing device and an electrically powered unlocking component. The fitting sliding component and the fixed clamping device are arranged to slide interlaced, the support angle adjustment fixing device is fixedly connected to the fixed clamping device, the electrically powered unlocking component is interlaced and engaged with the support angle adjustment fixing device, the fixed clamping device includes a fixed clamping plate, a sliding guide and an interlaced connecting member, the sliding guide is fixedly arranged on the outer wall of the fixed clamping plate, and the interlaced connecting member is arranged to interlace with the fixed clamping plate.

2. The minimally invasive fixation and reinforcement device for orthopedic fractures according to claim 1, characterized in that: The fixed clamping device is provided with two groups, each group of the fixed clamping device is provided with two fixed splint parts, each of the fixed splint parts is fixedly connected with two sliding guide parts, each group of the fixed clamping device is provided with two inserted connecting parts, the two inserted connecting parts insert and fix the two fixed splint parts, connecting openings are provided at both ends of the fixed splint parts, a connecting short shaft is fixedly provided on the inner wall of the fixed splint part, a contact pad is fixedly provided at the extension end of the connecting short shaft, and air permeable holes are provided on the contact pad in a linear array from top to bottom.

3. The minimally invasive fixation and reinforcement device for orthopedic fractures according to claim 2, characterized in that: The sliding guide comprises a vertical sliding guide plate, a sliding guide groove is formed through the vertical sliding guide plate, inner wall teeth are distributed in a linear array on the inner wall of the vertical sliding guide plate, the insertion connecting member comprises a connecting bolt and a locking nut, the connecting bolt is inserted in the connecting opening, and the locking nut is connected to the connecting bolt by threaded cooperation.

4. The minimally invasive fixation and reinforcement device for orthopedic fractures according to claim 3, characterized in that: The fitting sliding component includes a sliding main body and a top fixing part, the top fixing part is fixedly connected to the top of the sliding main body, the sliding main body includes an inner wall sliding block, an intermediate connecting block and an outer wall sliding block, the intermediate connecting block is fixedly connected between the inner wall sliding block and the outer wall sliding block, the inner wall of the inner wall sliding block slides in contact with the inner wall of the vertical sliding guide piece, the inner wall of the outer wall sliding block slides in contact with the outer wall of the vertical sliding guide piece, the intermediate connecting block slides between the two vertical sliding guide pieces, and a connecting bolt is fixedly provided on the outer wall of the outer wall sliding block.

5. The minimally invasive fixation and reinforcement device for orthopedic fractures according to claim 4, characterized in that: The top fixing part includes a main connecting part and a fitting component, the fitting component and the main connecting part are arranged in an interlaced manner, the main connecting part includes an ear-shaped protrusion, an interlaced bolt and a tightening nut, one end of the interlaced bolt is fixedly connected to the inner wall of the ear-shaped protrusion, and the tightening nut is connected to the interlaced bolt through threaded cooperation.

6. The minimally invasive fixation and reinforcement device for orthopedic fractures according to claim 5, characterized in that: The fitting component includes a fitting plate, which is provided with a plate hole. The fitting plate is inserted into the insertion bolt through the plate hole. The tightening nut is arranged on the back side of the fitting plate. The inner wall of the fitting plate is fixedly provided with fitting teeth, and the fitting teeth are engaged with the inner wall teeth in size.

7. The minimally invasive fixation and reinforcement device for orthopedic fractures according to claim 6, characterized in that: The support angle adjustment fixing device includes a fixed support member and an angle rotating member, the fixed support member and the angle rotating member are arranged in an interlaced manner, the fixed support member includes a vertical support plate, a mounting hole, a ratchet outer ring, a support spring, a shielding ring plate and a wrapping ring, the upper end of the vertical support plate is penetrated by a connecting hole, the connecting bolt is inserted in the connecting hole, the connecting bolt is fixed to the vertical support plate, the bottom of the vertical support plate is penetrated by a mounting hole, a transverse sliding groove is fixedly provided in the mounting hole, the ratchet outer ring is arranged in the mounting hole, and transverse sliding blocks are fixedly provided on both sides of the ratchet outer ring, and the transverse sliding blocks slide in the transverse sliding grooves.

8. The minimally invasive fixation and reinforcement device for orthopedic fractures according to claim 7, characterized in that: The outer side of the ratchet outer ring is fixedly connected to one end of the support spring, the blocking ring plate is fixedly connected to the outward end of the transverse slide groove, the support spring is fixedly connected between the outer wall of the ratchet outer ring and the inner wall of the blocking ring plate, the blocking ring plate is penetrated by a through hole, the through hole is connected to the transverse slide groove, the wrapping ring is wrapped around the outside of the blocking ring plate, and the wrapping ring is fixedly connected between the outer wall of the vertical support plate and the inner wall of the blocking ring plate.

9. The minimally invasive fixation and reinforcement device for orthopedic fractures according to claim 8, characterized in that: The angle rotating member includes a ratchet inner ring, a fixed shaft, a rotating plate, an extension plate, a supporting main shaft and a bone screw connecting member, the ratchet inner ring is fixedly arranged on the outside of one end of the fixed shaft, the other end of the fixed shaft is fixedly connected to the outside of the rotating plate, the ratchet outer ring and the ratchet inner ring are arranged concentrically, the gear teeth of the ratchet inner ring are engaged with the gear teeth of the ratchet outer ring, one end of the rotating plate is fixedly connected to the extension plate, the other end of the extension plate is fixedly connected to the supporting main shaft, the extension end of the supporting main shaft is fixedly provided with a bone screw connecting member, the bone screw connecting member includes a bone screw fixing ring, and a bone screw insertion hole is circumferentially opened on the bone screw fixing ring.

10. The minimally invasive fixation and reinforcement device for orthopedic fractures according to claim 9, characterized in that: The powered unlocking component includes a drag rod, a connecting rod shaft and a control electrical plate. The connecting rod shaft is fixedly connected to the two end portions of the drag rod. The end portion of the connecting rod shaft is fixedly provided with a powered adsorption front end. The control electrical plate is fixedly connected to the connecting rod shaft. The powered adsorption front end adsorbs the outer ring of the ratchet when powered. The control electrical plate is electrically connected to the powered adsorption front end.

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