An adjustable automatic bone reduction device for trauma orthopedics

Abstract

The present invention provides an adjustable automatic bone-holding reducer for trauma orthopedics, belonging to the technical field of trauma orthopedics. The bone-holding reducer comprises a first pliers handle and a second pliers handle, wherein the first pliers handle and the second pliers handle are connected by a gill shaft screw, and a first groove is provided on the inner side of the first pliers handle and the second pliers handle, and the ends of the first pliers handle and the second pliers handle are fixedly connected with a pliers head. The present invention provides an adjustment component and a locking component, so that the bone-holding reducer can first adjust the opening size of the pliers head in a wide range through the locking component and the limiting strip in the adjustment component during use, and perform a preliminary locking after the adjustment, thereby ensuring the adjustment efficiency of the bone-holding reducer, and then fine-tune the screw and threaded sleeve in the adjustment component after the preliminary locking, thereby achieving secondary adjustment of the bone-holding reducer to ensure the accuracy of the bone-holding reducer, so that the bone-holding reducer can take into account both the accuracy and efficiency of use during use.

Description

Technical Field

[0001] The invention relates to the technical field of trauma orthopedics, and in particular to an adjustable automatic bone-holding and reducing device for trauma orthopedics. Background Art

[0002] Traumatology orthopedics is a small branch of orthopedics, mainly focusing on patients with injuries to bones and surrounding tissues caused by various traumas. The diseases treated include but are not limited to fractures of the upper arm, lower limbs, spine, and other parts of the body. A bone reducer is a medical device used to fix and reduce fracture ends during orthopedic surgery.

[0003] A bone retractor is a medical device used in orthopedic surgery, primarily for fracture reduction and fixation. It typically consists of a handle, a head, and a gill screw. The inner surface of the head is often toothed, and a locking mechanism can be installed between the handles. Typically made of stainless steel, a bone retractor's primary function is to provide stable grip and control, allowing surgeons to accurately manipulate and control the bone, facilitating the splicing and fixation of fractured areas.

[0004] The existing bone reducing device is generally a bone clamp, which relies on medical staff to operate it by hand. There are usually two ways of adjustment: screw adjustment and rack adjustment. The rack limiting structure is used for displacement and locking. Although the adjustment efficiency is high, it will affect the clamping accuracy of the bone and cannot make close contact with the bone. The use of a screw structure will make the adjustment operation of the entire bone clamp take a lot of time, affecting the efficiency of the operation. Secondly, in the process of clamping the bone with the existing bone clamp, the outer surface of the bone is not regular, and the teeth of the jaws of the bone clamp have a certain length, and the contact area with the outside of the bone is small. On the one hand, it leads to poor clamping stability, and on the other hand, it makes the pressure during clamping greater, which can easily cause damage to the outside of the bone. Therefore, the present application provides an adjustable automatic bone reducing device for trauma orthopedics to meet the needs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an adjustable automatic bone repositioner for trauma orthopedics to solve the problems of poor clamping stability, easy damage to bones, and the inability to balance efficiency and accuracy in the adjustment process.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A trauma orthopedic adjustable automatic bone reduction device includes a first pliers handle and a second pliers handle, the first pliers handle and the second pliers handle are connected by a gill axis screw, and the inner sides of the first pliers handle and the second pliers handle are provided with a first groove, the ends of the first pliers handle and the second pliers handle are fixedly connected to a pliers head, an assembly area is provided on the pliers head, and an occlusal rack is sleeved in the assembly area; an adjustment component is used to adjust the relative position between the first pliers handle and the second pliers handle, and the adjustment component is connected to the second pliers handle; a locking component is used to lock the adjustment component, and the locking component is connected to the first pliers handle; a connecting component is used to connect and fix the occlusal rack to the pliers head, and the connecting component is connected to the pliers head; a limiting support component is used to limit the position of the occlusal rack inside the assembly area, and the limiting support component is connected to the occlusal rack.

[0008] Optionally, the adjustment assembly includes a bearing seat fixedly connected to the second clamp handle, the bearing seat is located in the first groove on the second clamp handle, the outside of the bearing seat is movably connected to a threaded sleeve, a screw is threadedly connected to the threaded sleeve, a limit strip is provided at one end of the screw away from the threaded sleeve, a movable opening is opened on the screw that is adapted to the shape of the limit strip, and the screw and the limit strip are connected by a rotating rod.

[0009] Optionally, the limit bar is arc-shaped and has a guide groove on it, the first clamp handle has a movable groove that matches the shape of the limit bar and the guide groove, the limit bar is sleeved in the movable groove, and the limit bar has evenly distributed positioning grooves on the side facing the clamp head.

[0010] Optionally, the locking assembly includes a connecting frame fixedly connected to the first clamp handle, the connecting frame is located in the first groove on the first clamp handle, the connecting frame is Y-shaped, and a positioning plug plate is fixedly connected to one end of the connecting frame facing the limit bar, and the shape of the positioning plug plate is adapted to the shape of the positioning groove.

[0011] Optionally, the connecting frame is away from both ends of the limiting strip, one end of which is fixedly connected to the inner wall of the first groove on the first clamp handle, and the other end extends to the outside of the first groove and is fixedly connected to a ring, and a third weakening groove is provided on the outside of the end connecting the connecting frame and the first groove.

[0012] Optionally, the connecting assembly includes a positioning sleeve fixedly connected to the inner side of the assembly area and a connecting column fixedly connected to the outside of the engaging rack, the end sleeve of the connecting column is provided with a positioning head, the positioning head is made of rubber, the positioning sleeve is provided with an opening for accommodating the positioning head, the outside of the positioning head is provided with a raised area near one end of the connecting column, the positioning sleeve is provided with evenly distributed clamping plates that are adapted to the shape of the positioning head, and the clamping plates are provided with a second groove that is adapted to the shape of the raised area.

[0013] Optionally, a deformation cavity is provided between the positioning sleeve and the clamping piece, evenly distributed through-holes are provided between the clamping pieces, and an end of the clamping piece facing the interior of the positioning sleeve forms an open structure through the through-holes, and an end of the clamping piece facing the interior of the positioning sleeve is fixedly connected to a wrapping head.

[0014] Optionally, the end of the engaging rack away from the connecting column is fixedly connected to a plug connector, a first weakening groove is provided at the connection between the engaging rack and the plug connector, a plug connector slot that matches the shape of the plug connector is provided in the pliers head, a fastening screw is threadedly connected in the plug connector, and a screw hole that matches the shape of the fastening screw is provided on the plug connector.

[0015] Optionally, the limit support assembly includes a support frame fixedly connected to the middle part of the engaging rack, and a second weakening groove symmetrically distributed on both sides of the support frame is provided on a side of the engaging rack close to the assembly area, and a limit block corresponding to the position of the support frame is fixedly connected to the assembly area, and a first limit groove is provided in the middle of the support frame, and the width value of the first limit groove is greater than the width value of the limit block.

[0016] Optionally, one end of the engaging rack close to the connecting column is bent toward the assembly area to form a limit head, and a gap is left between the limit head and the support frame and the assembly area. A second limit groove adapted to the shape of the limit head is provided on the assembly area.

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

[0018] In the above scheme, by setting up an adjustment component and a locking component, the bone holder reducer can first adjust the opening size of the clamp head in a wide range through the locking component and the limit strip in the adjustment component during use, and perform a preliminary locking after adjustment, thereby ensuring the adjustment efficiency of the bone holder reducer. After the preliminary locking, fine-tuning is performed through the screw and threaded sleeve in the adjustment component, thereby achieving secondary adjustment of the bone holder reducer to ensure the accuracy of the bone holder reducer, so that the bone holder reducer can take into account both accuracy and efficiency during use.

[0019] By setting up an occlusal rack and a connecting component, one end of the occlusal rack is fixedly connected to the pliers head, and the other end is movably connected through the connecting component, so that a deflection can be generated between the movably connected end of the occlusal rack and the pliers head, and the entire occlusal rack can be offset, so that a larger contact area can be generated between the outer surface of the bone during the process of clamping the bone, thereby enhancing the clamping and fixing effect of the bone, and avoiding damage to the bone caused by excessive pressure at the clamping position.

[0020] By providing an occlusal rack, a connecting component and a first weakened groove, the occlusal rack can be offset to adapt to the outer surface of the bone under the action of the connecting component and the first weakened groove during the process of clamping the bone. At the same time, the offset of the occlusal rack assists the initial locking step of the adjustment component and the locking component. Before the secondary adjustment, the elastic force generated by the offset of the occlusal rack maintains the initial clamping and fixing state of the bone. Subsequently, the secondary adjustment is performed to stabilize the clamping of the bone by the occlusal rack, so that the effect achieved by the connecting component is coordinated with the adjustment component, so that the occlusal rack can improve the function of the adjustment component.

[0021] By setting the clamping piece in the connecting component and the raised area on the outside of the positioning head, the connection and disassembly operations between the connecting column and the positioning sleeve are simple and convenient, so that the occlusal rack at the end where the connecting component is set can ensure its ability to offset and move, and is easy to disassemble and assemble, so that it is convenient to replace the occlusal rack after aging and damage. Even if the occlusal rack is in working condition, the positioning head in the connecting component will only be inserted deep into the positioning sleeve and will not fall off. The stability after docking is guaranteed, ensuring the stability of the occlusal rack during use.

[0022] By setting a limit support component, the range of movement of the occlusal rack is limited and the overall structure of the occlusal rack is supported during the process of the occlusal rack clamping the bone and generating offset movement, thereby ensuring the structural stability of the occlusal rack during the clamping process. At the same time, it can also limit the deflection range of the occlusal rack in the assembly area, limit the offset of the occlusal rack, avoid excessive offset of the occlusal rack and cause dislocation, and fail to clamp the bone, thereby further improving the functionality of the occlusal rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of an adjustable automatic bone repositioner for trauma orthopedics;

[0025] Figure 2 It is a schematic diagram of the structure of the pliers head and the engaging rack;

[0026] Figure 3 for Figure 2 A in the middle is an enlarged structural diagram;

[0027] Figure 4 for Figure 2 The enlarged structural diagram at B in the middle;

[0028] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the clamp head;

[0029] Figure 6 for Figure 5 The enlarged structural diagram at C in the middle;

[0030] Figure 7 for Figure 5 The enlarged structural diagram at D in the middle;

[0031] Figure 8 Schematic diagram of the three-dimensional structure of the meshing rack;

[0032] Figure 9 It is a schematic diagram of the three-dimensional structure of the positioning sleeve;

[0033] Figure 10 This is a structural diagram of the first state of the positioning head and the positioning sleeve;

[0034] Figure 11 This is a structural diagram of the positioning head and the positioning sleeve in the second state;

[0035] Figure 12 A schematic diagram of a partial cross-sectional structure of the first pliers handle and the second pliers handle;

[0036] Figure 13 for Figure 12 The enlarged structural diagram at E in the middle;

[0037] Figure 14 Schematic diagram of the matching structure of the screw and the threaded sleeve.

[0038] Reference numerals:

[0039] 1. First handle; 2. Second handle; 3. Clamp head; 4. First groove; 5. Engaging rack; 6. Gill screw; 7. Limiting strip; 8. Screw; 9. Threaded sleeve; 10. Collar; 11. Assembly area; 12. First weakening groove; 13. Plug connector; 14. Fastening screw; 15. Support frame; 16. First limiting groove; 17. Limiting block; 18. Movable opening; 19. Plug slot; 20. Second limiting groove ; 21. Positioning sleeve; 22. Connecting column; 23. Positioning head; 24. Limiting head; 25. Second weakening groove; 26. Clamping piece; 27. Wrapping head; 28. Through-hole; 29. ​​Second groove; 30. Raised area; 31. Deformation cavity; 32. Bearing seat; 33. Guide groove; 34. Connecting frame; 35. Positioning plug plate; 36. Positioning groove; 37. Movable groove; 38. Third weakening groove; 39. Turning rod.

[0040] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0041] The following describes in detail an adjustable automatic bone repositioner for trauma orthopedics provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known techniques. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0042] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0043] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0044] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0045] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0046] like Figures 1 to 14 As shown, an embodiment of the present invention provides an adjustable automatic bone reducer for trauma orthopedics, including a first handle 1 and a second handle 2, which are connected by a gill axis screw 6. The first handle 1 and the second handle 2 are the main parts of the entire bone reducer, which are used to be held by medical staff and to adjust the size of the opening of the pliers head 3 by pinching. The outside of the first handle 1 and the second handle 2 are provided with evenly distributed depressions, which can be adapted to the hands of medical staff to improve the friction when the medical staff holds them, and the inner sides of the first handle 1 and the second handle 2 are both provided with a first groove 4. The first groove 4 provided in the first handle 1 and the second handle 2 can reduce the weight of the entire bone reducer without affecting the overall strength of the first handle 1 and the second handle 2, thereby reducing the burden on medical staff during the use of the bone reducer.

[0047] The ends of the first handle 1 and the second handle 2 are fixedly connected to the pliers head 3. When the first handle 1 and the second handle 2 are pinched, the first handle 1 and the second handle 2 can be deflected around the gill axis screw 6, and then the pliers head 3 can be driven to open and close, so as to adjust the size of the opening formed between the two pliers heads 3 to adapt to bones of different thicknesses. An assembly area 11 is provided on the pliers head 3, and an occlusal rack 5 is sleeved in the assembly area 11. The assembly area 11 provided on the pliers head 3 provides space for the installation and deformation of the occlusal rack 5, so that the occlusal rack 5 can be offset to a certain range during the process of clamping the bone, so as to create a larger contact area between the occlusal rack 5 and the bone, thereby improving the stability during the bone clamping process.

[0048] An adjusting assembly is used to adjust the relative position between the first pliers handle 1 and the second pliers handle 2, and the adjusting assembly is connected to the second pliers handle 2; a locking assembly is used to lock the adjusting assembly, and the locking assembly is connected to the first pliers handle 1; a connecting assembly is used to connect and fix the occlusal rack 5 and the pliers head 3, and the connecting assembly is connected to the pliers head 3; a limiting support assembly is used to limit the position of the occlusal rack 5 on the inner side of the assembly area 11, and the limiting support assembly is connected to the occlusal rack 5.

[0049] In this embodiment, if Figures 12 to 14 As shown, the adjusting assembly includes a bearing seat 32 fixedly connected to the second clamp handle 2, and the bearing seat 32 is located in the first groove 4 on the second clamp handle 2. The setting of the bearing seat 32 enables the threaded sleeve 9 between the bearing seat 32 and the screw 8 to rotate, thereby achieving fine-tuning of the adjusting assembly. In addition to reducing the weight of the second clamp handle 2, the first groove 4 on the second clamp handle 2 can also form a package on the outside of the bearing seat 32, thereby forming a package protection for the bearing seat 32. The outside of the bearing seat 32 is movably connected with a threaded sleeve 9, and a screw 8 is threadedly connected to the threaded sleeve 9. A limiting strip 7 is provided on the end of the screw 8 away from the threaded sleeve 9, and a movable opening 18 is provided on the screw 8 that is adapted to the shape of the limiting strip 7, and the screw 8 and the limiting strip 7 are connected through The rotating rod 39 is connected, and the movable opening 18 opened in the screw 8 can make the screw 8 and the threaded sleeve 9 rotate and adjust. The connection end between the limit bar 7 and the screw 8 can be deflected around the rotating rod 39 in the movable opening 18, so as to avoid the connection relationship between the limit bar 7 and the screw 8 hindering the adjustment movement between the screw 8 and the threaded sleeve 9. After the limit bar 7 is locked, the rotating threaded sleeve 9 can cause the screw 8 and the threaded sleeve 9 to be displaced through the thread between the threaded sleeve 9 and the screw 8, thereby driving the position between the first clamp handle 1 and the second clamp handle 2 to change, thereby realizing fine adjustment of the opening size between the clamp heads 3, and allowing the occlusal rack 5 in the clamp heads 3 to clamp and occlude more tightly on the outside of the bone, thereby improving the accuracy of the entire bone holder reducer.

[0050] In this embodiment, if Figure 12 and Figure 13As shown, the limit strip 7 is arc-shaped, and a guide groove 33 is provided on the limit strip 7. A movable groove 37 that matches the shape of the limit strip 7 and the guide groove 33 is provided on the first clamp handle 1. The limit strip 7 is sleeved in the movable groove 37, and the limit strip 7 is provided with evenly distributed positioning grooves 36 on the side facing the clamp head 3. In the process of pinching the first clamp handle 1 and the second clamp handle 2, the limit strip 7 will follow the entire adjustment component and slide relative to the first clamp handle 1. The existence of the movable groove 37 can ensure that the limit strip 7 can pass through the first clamp handle 1 during the sliding process. At the same time, the movable groove 37 is also adapted to the guide groove 33 on the limit strip 7, providing limitation and guidance for the movement of the limit strip 7, ensuring the stability of the adjustment component and the first clamp handle 1 during the relative sliding process. The positioning groove 36 provided on the limit strip 7 can be locked under the action of the locking component to fix the position between the adjusted first clamp handle 1 and the second clamp handle 2.

[0051] In this embodiment, if Figures 12 to 14 As shown, the locking assembly includes a connecting frame 34 fixedly connected to the first clamp handle 1, the connecting frame 34 is located in the first groove 4 on the first clamp handle 1, the connecting frame 34 is Y-shaped, and a positioning plug plate 35 is fixedly connected to one end of the connecting frame 34 facing the limit bar 7, the shape of the positioning plug plate 35 is adapted to the shape of the positioning groove 36, and the Y-shaped structure makes the entire connecting frame 34 have a total of three ends. When the end of the connecting frame 34 is not subjected to external force, its position makes the positioning plug plate 35 embedded in the positioning groove 36 on the limit bar 7, forming a lock for the limit bar 7, and the connecting frame 34 is away from the two ends of the limit bar 7, one end of which is fixedly connected to the inner side wall of the first groove 4 on the first clamp handle 1, and the other end extends to the outside of the first groove 4 and is fixedly connected to the ring 10.

[0052] A third weakening groove 38 is provided on the outside of one end connecting the connecting frame 34 and the first groove 4. The setting of the third weakening groove 38 makes the thickness of the connecting frame 34 at this location thinner and weaker, and can bend and produce corresponding deformation at this location after being subjected to external force. One end of the connecting frame 34 is fixedly connected to the inner side wall of the first groove 4 on the first clamp handle 1 to fix the connecting frame 34. The first groove 4 wraps the outside of the connection position to form a wrapping protection for the connection between the connecting frame 34 and the first clamp handle 1. In the specific use process, while pinching the first clamp handle 1 and the second clamp handle 2, it is necessary to insert the index finger into the ring 10 and When the tongs 3 are pushed in the direction of the tongs head 3, the connecting frame 34 is deformed at the third weakened groove 38, and the positioning plate 35 is driven to withdraw from the positioning groove 36 on the limit strip 7, thereby releasing the lock of the limit strip 7. After the opening size of the tongs head 3 is initially adjusted to match the thickness of the bone, the collar 10 is loosened and the external force of the connecting frame 34 is removed. The connecting frame 34 can automatically reset under the action of its own elastic force, driving the positioning plate 35 to be inserted into the positioning groove 36 again, locking the limit strip 7 to realize the cooperation between the locking component and the adjusting component, and realizing the preliminary locking of the position of the tongs head 3, so that the entire bone holder can be operated quickly and efficiently during the preliminary locking process.

[0053] In this embodiment, if Figure 2 and Figures 8 to 11 As shown, the connecting assembly includes a positioning sleeve 21 fixedly connected to the inner side of the assembly area 11 and a connecting column 22 fixedly connected to the outside of the engaging rack 5. The end of the connecting column 22 is provided with a positioning head 23, which is made of rubber. The positioning head 23 is made of rubber so that it has a certain deformation ability. An opening for accommodating the positioning head 23 is provided on the positioning sleeve 21. A raised area 30 is provided on the outer side of the positioning head 23 near one end of the connecting column 22. The positioning sleeve 21 is provided with uniformly distributed and shaped like the positioning head 23. The clamping piece 26 is adapted to the shape of the raised area 30, and a second groove 29 is provided on the clamping piece 26 to adapt to the shape of the raised area 30. During the insertion of the positioning head 23 into the positioning sleeve 21, the positioning head 23 is squeezed by the clamping piece 26 and may be deformed to a certain extent to facilitate the raised area 30 to enter the positioning sleeve 21. After entering the positioning sleeve 21, the clamping piece 26 squeezes the outside of the positioning head 23, and at the same time, the raised area 30 and the second groove 29 are connected, so that the positioning head 23 and the positioning sleeve 21 are connected.

[0054] After the occlusal rack 5 is connected and fixed to the assembly area 11, the positioning head 23 on the connecting column 22 is embedded in the inner side of the positioning sleeve 21, and the raised area 30 on the positioning head 23 forms a socket relationship with the second groove 29 on the clamping piece 26, which limits the movement of the positioning head 23 along the central axis, but does not hinder the positioning head 23 and the connecting column 22 from rotating around the central axis, so that relative rotation can be generated between the positioning head 23 and the positioning sleeve 21, and then the occlusal rack 5 is provided with one end of the connecting column 22 and the positioning head 23 to deflect along with the rotation of the connecting column 22 and the positioning head 23, thereby changing the angle of the occlusal rack 5 in the assembly area 11, so that the occlusal rack 5 can be aligned with the external shape of the bone. The bone is naturally adapted to the wearer's body, and the contact area between the occlusal rack 5 and the outer surface of the bone is increased during the process of clamping the bone, thereby improving the bone holding effect of the entire bone holder and reducer. The occlusal rack 5 is displaceable due to the action of the positioning head 23 and the positioning sleeve 21, which can compensate for the gap between the occlusal rack 5 and the outer surface of the bone to a certain extent during the initial locking of the first clamp handle 1 and the second clamp handle 2, and to a certain extent make up for the lack of bone clamping accuracy caused by the spacing of the positioning grooves 36, thereby ensuring the clamping effect after the initial fixation. Subsequently, the screw 8 and the threaded sleeve 9 are adjusted to make the limit support assembly on the occlusal rack 5 contact and cooperate with the clamp head 3, so that the occlusal rack 5 can clamp the bone tightly.

[0055] In this embodiment, if Figures 8 to 11As shown, a deformation cavity 31 is provided between the positioning sleeve 21 and the clamping piece 26. The clamping piece 26 will be deformed after being squeezed by the positioning head 23. The opening of the deformation cavity 31 provides sufficient deformation space for the clamping piece 26, which is convenient for the socketing operation between the positioning head 23 and the positioning sleeve 21. Evenly distributed through-holes 28 are provided between the clamping pieces 26, and the end of the clamping piece 26 facing the inside of the positioning sleeve 21 forms an open structure through the through-hole 28. The end of the clamping piece 26 facing the inside of the positioning sleeve 21 is fixedly connected with a wrapping head 27. The clamping piece 26 is provided with one end of the wrapping head 27 to form an open structure through the opening of the through-hole 28, so that each clamping piece 26 and the wrapping head 27 are separated from each other. After being squeezed, it can be deformed to adapt to the external shape of the positioning head 23, which is convenient for the insertion of the positioning head 23. At the same time, the wrapping head 27 is perpendicular to the central axis of the positioning head 23 and the positioning sleeve 21. After the positioning head 23 is completely inserted into the positioning sleeve 21, it can contact with the end of the positioning head 23 to perform secondary positioning of the positioning head 23, further ensuring the socketing effect between the positioning head 23 and the positioning sleeve 21, and the occlusal rack 5 is provided with a connecting column 22 and one end of the positioning head 23, which can not only ensure the offset ability of the occlusal rack 5, but also be easy to disassemble and assemble, and facilitate the replacement of the occlusal rack 5 after aging and wear after long-term use. At the same time, when the occlusal rack 5 clamps the bone, the force direction will only cause the positioning head 23 to be squeezed deep into the positioning sleeve 21, and there will be no problem of falling off.

[0056] In this embodiment, if Figure 2 and Figure 3 as well as Figures 5 to 8 As shown, the end of the engaging rack 5 away from the connecting column 22 is fixedly connected to the plug connector 13, and a first weakening groove 12 is provided at the connection between the engaging rack 5 and the plug connector 13. A plug slot 19 that matches the shape of the plug connector 13 is provided in the pliers head 3. A fastening screw 14 is threadedly connected in the plug slot 19, and a screw hole that matches the shape of the fastening screw 14 is provided on the plug connector 13. The engaging rack 5 is provided with one end of the plug connector 13 mainly for connecting and fixing between the engaging rack 5 and the pliers head 3. In the connected state, the plug connector 13 is inserted into the plug slot 19 and the fastening screw is fastened. The nail 14 passes through the screw hole on the plug connector 13 and is threadedly connected to the pliers head 3, thereby ensuring the stability of the connection between the fixed end of the occlusal rack 5 and the pliers head 3. The first weakening groove 12 opened between the occlusal rack 5 and the plug connector 13 makes the thickness and width of the occlusal rack 5 at this location smaller than other areas on the occlusal rack 5, and the strength is weaker and easy to deform, which enables the occlusal rack 5 to twist at this location when it is offset by external force, making it easy for the occlusal rack 5 to adapt to the outer surface of the bone during the process of clamping the bone.

[0057] In this embodiment, if Figures 2 to 8As shown, the limit support assembly includes a support frame 15 fixedly connected to the middle part of the meshing rack 5, and a second weakening groove 25 symmetrically distributed on both sides of the support frame 15 is provided on the side of the meshing rack 5 close to the assembly area 11. The second weakening groove 25 opened on the meshing rack 5 makes the thickness of the meshing rack 5 at this location thinner, weaker, and more prone to deformation. Subsequently, during the process of installing or disassembling the meshing rack 5, force can be applied to the meshing rack 5, causing the meshing rack 5 to deform at the second weakening groove 25, thereby reducing the distance between the two ends of the meshing rack 5, and facilitating the withdrawal of the plug connector 13 on the meshing rack 5 from the plug slot 19.

[0058] A limit block 17 corresponding to the position of the support frame 15 is fixedly connected to the assembly area 11, and a first limit groove 16 is provided in the middle of the support frame 15. The width of the first limit groove 16 is greater than the width of the limit block 17. The end of the occlusal rack 5 close to the connecting column 22 is bent toward the assembly area 11 to form a limit head 24. There is a gap between the limit head 24 and the support frame 15 and the assembly area 11. The gap between the support frame 15 and the limit head 24 and the assembly area 11 is reserved for the offset activity of the occlusal rack 5 to ensure the offset activity ability of the occlusal rack 5. A shape of the limit head 24 is adapted to the assembly area 11. The second limiting groove 20, the first weakening groove 12 and the positioning head 23 and the setting of the positioning head 23 enable the occlusal rack 5 to have the ability to offset to adapt to the outer surface of the bone during the process of clamping the bone, but it also makes the overall structural strength of the occlusal rack 5 weaker. Therefore, a limiting support assembly is provided. After the adjustment assembly completes fine-tuning, the limiting support assembly on the occlusal rack 5 is in contact with the inner wall of the assembly area 11 to support the overall structure of the occlusal rack 5 and ensure the strength of the occlusal rack 5 during the bone holding process. The support frame 15 and the limiting block 17 form a support for the middle part of the occlusal rack 5 for the limiting support assembly.

[0059] During the process of the occlusal rack 5 clamping the bone, the gap between the support frame 15 and the assembly area 11 is closed, and the support frame 15 drives the first limiting groove 16 to be sleeved on the outside of the limiting block 17 and contact the assembly area 11 to support the occlusal rack 5. Although the position of the first limiting groove 16 corresponds to the position of the limiting block 17, considering that the occlusal rack 5 will be offset during actual use, the width value of the first limiting groove 16 is set to be larger than the width value of the limiting block 17. After the occlusal rack 5 deviates to a certain angle, the limiting block The outer wall of 17 will contact the inner wall of the first limiting groove 16, forming a limit for the occlusal rack 5 to prevent the occlusal rack 5 from being excessively offset and misaligned. The cooperation between the limiting head 24 and the second limiting groove 20 is the same as the cooperation between the support frame 15, the first limiting groove 16, and the limiting block 17. The difference is that the limiting head 24 is an auxiliary support and offset angle limit for the end of the connecting column 22 of the occlusal rack 5, thereby ensuring the stability of the structure of the occlusal rack 5 during the bone clamping process.

[0060] The working principle of the technical solution provided by the present invention is as follows: when in use, hold the first pliers handle 1 and the second pliers handle 2, insert the index finger into the ring 10 and push it in the direction away from the limit bar 7, the ring 10 drives the connecting frame 34 to deform at the third weakening groove 38, and then drives the positioning plate 35 to withdraw from the positioning groove 36 on the limit bar 7, releases the lock on the first pliers handle 1 and the second pliers handle 2, adjusts the pliers head 3 to the maximum opening angle, and then inserts the pliers head 3 to the outside of the bone, pinches the first pliers handle 1 and the second pliers handle 2, so that the first pliers handle 1 and the second pliers handle 2 are relatively deflected around the position of the gill axis screw 6, and then drives the pliers head 3 to close.

[0061] During the closing process of the pliers head 3, the occlusal rack 5 contacts the outside of the bone. According to the external shape of the bone, the occlusal rack 5 twists at the first weakened groove 12. At the same time, the positioning head 23 rotates in the positioning sleeve 21, so that the occlusal rack 5 as a whole is deflected in the assembly area 11 to adapt to the outer surface of the bone. After sensing the pressure of the bone on the occlusal rack 5 and the pliers head 3, the ring 10 is loosened, and the connecting frame 34 drives the positioning insert plate 35 to reset under the action of its own elastic force, and drives the positioning insert plate 35 to be inserted into the positioning groove 36, thereby realizing automatic locking of the limit strip 7 and the first and second pliers handles 1 and 2, and preliminarily fixing the clamping state of the pliers head 3.

[0062] Pinch the threaded sleeve 9 and rotate it so that the threaded sleeve 9 and the screw rod 8 are relatively displaced under the action of the thread, and fine-tune the clamping state of the pliers head 3 until the occlusal rack 5 fits tightly against the bone. Hold the first pliers handle 1 and the second pliers handle 2 to splice the clamped bones, completing the adjustment and use process of the entire bone holder reducer.

[0063] When the occlusal rack 5 needs to be disassembled and replaced, unscrew the fastening screw 14, release the lock between the plug connector 13 and the pliers head 3, move the occlusal rack 5 to allow the occlusal rack 5 to deform at the first weakened groove 12 and the second weakened groove 25, and pull the plug connector 13 out of the plug groove 19, apply force along the inclination direction of the positioning sleeve 21 to pull the connecting column 22 and the positioning head 23 out of the positioning sleeve 21, and remove the occlusal rack 5 from the assembly area 11.

[0064] Take out the replaced occlusal rack 5, insert the connecting column 22 and the positioning head 23 into the positioning sleeve 21, the surface of the positioning head 23 and the raised area 30 squeeze the clamping piece 26, and the clamping piece 26 offsets and deforms into the deformation cavity 31 until the end of the positioning head 23 is released from the wrapping head 27, and the raised area 30 is engaged in the second groove 29. The clamping piece 26 clamps and fixes the positioning head 23 as a whole under the action of its own elastic force, squeezes the occlusal rack 5, and allows the occlusal rack 5 to deform and bend at the first weakened groove 12 and the second weakened groove 25, and then puts the plug connector 13 into the plug slot 19, and then tightens the fastening screw 14 to complete the disassembly and replacement process of the occlusal rack 5.

[0065] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0066] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An adjustable automatic bone repositioner for trauma orthopedics, characterized in that: The present invention comprises a first pliers handle and a second pliers handle, wherein the first pliers handle and the second pliers handle are connected by a gill shaft screw, and the inner side of the first pliers handle and the second pliers handle are both provided with a first groove, and the ends of the first pliers handle and the second pliers handle are both fixedly connected to a pliers head, wherein the pliers head is provided with an assembly area, and an engaging rack is sleeved in the assembly area; an adjusting assembly, used for adjusting the relative position between the first clamp handle and the second clamp handle, wherein the adjusting assembly is connected to the second clamp handle; A locking assembly, used to lock the adjusting assembly, wherein the locking assembly is connected to the first clamp handle; A connecting assembly, used for connecting and fixing the engaging rack to the pliers head, wherein the connecting assembly is connected to the pliers head; A position limiting support assembly, used for limiting the position of the engaging rack inside the assembly area, the position limiting support assembly being connected to the engaging rack; The connecting assembly includes a positioning sleeve fixedly connected to the inner side of the assembly area and a connecting column fixedly connected to the outside of the engaging rack, the end of the connecting column is provided with a positioning head, the positioning head is made of rubber, the positioning sleeve is provided with an opening for accommodating the positioning head, the outside of the positioning head is provided with a raised area near one end of the connecting column, the positioning sleeve is provided with evenly distributed clamping pieces that are adapted to the shape of the positioning head, and the clamping piece is provided with a second groove that is adapted to the shape of the raised area; A deformation cavity is provided between the positioning sleeve and the clamping piece, uniformly distributed through-holes are provided between the clamping pieces, and one end of the clamping piece facing the interior of the positioning sleeve passes through the through-holes to form an open structure, and one end of the clamping piece facing the interior of the positioning sleeve is fixedly connected to a wrapping head; The end of the engaging rack away from the connecting column is fixedly connected to a plug connector, a first weakening groove is provided at the connection between the engaging rack and the plug connector, a plug connector groove adapted to the shape of the plug connector is provided in the pliers head, a fastening screw is threadedly connected in the plug connector groove, and a screw hole adapted to the shape of the fastening screw is provided on the plug connector.

2. The adjustable automatic bone repositioner for traumatology according to claim 1, characterized in that: The adjustment assembly includes a bearing seat fixedly connected to the second clamp handle, the bearing seat is located in the first groove on the second clamp handle, the outside of the bearing seat is movably connected to a threaded sleeve, a screw is threadedly connected to the threaded sleeve, a limit strip is provided on the end of the screw away from the threaded sleeve, a movable opening is opened on the screw that is adapted to the shape of the limit strip, and the screw and the limit strip are connected by a rotating rod.

3. The adjustable automatic bone repositioner for traumatology according to claim 2, characterized in that: The limit bar is arc-shaped and has a guide groove on it. The first clamp handle has a movable groove that matches the shape of the limit bar and the guide groove. The limit bar is sleeved in the movable groove, and the limit bar has evenly distributed positioning grooves on the side facing the clamp head.

4. The adjustable automatic bone repositioner for traumatology according to claim 3, characterized in that: The locking assembly includes a connecting frame fixedly connected to the first clamp handle, the connecting frame is located in the first groove on the first clamp handle, the connecting frame is Y-shaped, and a positioning plug plate is fixedly connected to one end of the connecting frame facing the limit bar, and the shape of the positioning plug plate is adapted to the shape of the positioning groove.

5. The adjustable automatic bone repositioner for trauma orthopedics according to claim 4, characterized in that: The connecting frame is away from the two ends of the limiting strip, one end of which is fixedly connected to the inner side wall of the first groove on the first clamp handle, and the other end extends to the outside of the first groove and is fixedly connected to a ring, and a third weakening groove is provided on the outside of the end connecting the connecting frame and the first groove.

6. The adjustable automatic bone repositioner for trauma orthopedics according to claim 1, characterized in that: The limit support assembly includes a support frame fixedly connected to the middle part of the engaging rack, and a second weakening groove symmetrically distributed on both sides of the support frame is provided on a side of the engaging rack close to the assembly area. A limit block corresponding to the position of the support frame is fixedly connected to the assembly area, and a first limit groove is provided in the middle of the support frame, and the width of the first limit groove is greater than the width of the limit block.

7. The adjustable automatic bone repositioner for traumatology according to claim 6, characterized in that: One end of the engaging rack close to the connecting column is bent toward the assembly area to form a limit head, and there is a gap between the limit head and the support frame and the assembly area. A second limit groove adapted to the shape of the limit head is opened on the assembly area.

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