Adjustable automatic bone-holding repositor for traumatic orthopedics department

Abstract

The invention provides an adjustable automatic bone-holding repositor for traumatic orthopedics, and belongs to the technical field of traumatic orthopedics. Comprising a first plier handle and a second plier handle, the first plier handle and the second plier handle are connected through a gill shaft screw, first grooves are formed in the inner side of the first plier handle and the inner side of the second plier handle, and plier heads are fixedly connected to the tail ends of the first plier handle and the second plier handle. According to the bone-holding repositor, by arranging the adjusting assembly and the locking assembly, in the using process of the bone-holding repositor, the opening size of the forceps head can be adjusted in a large range through the locking assembly and a limiting strip in the adjusting assembly, and preliminary locking is conducted after adjustment, so that the adjusting efficiency of the bone-holding repositor is guaranteed; according to the bone-holding repositor disclosed by the utility model, the bone-holding repositor is primarily locked and then finely adjusted through a screw rod and a threaded sleeve in the adjusting assembly, so that the secondary adjustment of the bone-holding repositor is realized, the precision of the bone-holding repositor is ensured, and the use precision and the use efficiency of the bone-holding repositor can be both considered in the use process of the bone-holding repositor.

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 for patients with bone and surrounding tissue damage 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. The bone repositioner is a medical device used to fix and reposition the fracture ends during orthopedic surgery.

[0003] A bone repositioner is a medical device used in orthopedic surgery, mainly used in fracture reduction and fixation surgery. It usually consists of a pliers handle, a pliers head and a branchial screw. The inner surface of the pliers head is often provided with teeth, and a locking device can be set between the pliers handle. It is generally made of stainless steel. The main function of the bone repositioner is to provide stable grip and control so that doctors can accurately operate and control the bones, and facilitate the splicing and fixation of the fractured area of ​​the bones.

[0004] Existing bone reducers are generally bone forceps, which are operated by hand by medical staff. 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 be in close contact with the bone. The use of a screw structure will make the adjustment operation of the entire bone forceps take a lot of time, affecting the efficiency of the operation. Secondly, in the process of clamping bones with existing bone forceps, the outer surface of the bone is not regular, and the teeth of the pliers head part of the bone forceps 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 is easy to cause damage to the outside of the bone. Therefore, the present application provides an adjustable automatic bone reducer 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: A trauma orthopedic adjustable automatic bone reduction device 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 axis screw, and the inner sides of the first pliers handle and the second pliers handle are provided with a first groove, and the ends of the first pliers handle and the second pliers handle are fixedly connected to a pliers head, and 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 limit support component is used to limit the position of the occlusal rack inside the assembly area, and the limit support component is connected to the occlusal rack.

[0007] 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 with a threaded sleeve, a screw is threadedly connected in the threaded sleeve, a limit strip is provided at one end of the screw away from the threaded sleeve, a movable opening matching the shape of the limit strip is opened on the screw, and the screw and the limit strip are connected by a rotating rod.

[0008] Optionally, the limit bar is arc-shaped and has a guide groove, 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 one side facing the clamp head.

[0009] 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 strip, and the shape of the positioning plug plate is adapted to the shape of the positioning groove.

[0010] 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 where the connecting frame is connected to the first groove.

[0011] Optionally, the connecting component 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, a raised area is provided on the outside of the positioning head near one end of the connecting column, the positioning sleeve is provided with evenly distributed clamping sheets that are adapted to the shape of the positioning head, and the clamping sheet is provided with a second groove that is adapted to the shape of the raised area.

[0012] 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 one end of the clamping piece facing the interior of the positioning sleeve forms an open structure through the through holes, and one end of the clamping piece facing the interior of the positioning sleeve is fixedly connected to a wrapping head.

[0013] Optionally, a plug connector is fixedly connected to one end of the engaging rack away from the connecting column, a first weakened groove is provided at the connection between the engaging rack and the plug connector, a plug connector slot matching the shape of the plug connector is provided in the pliers head, a fastening screw is threadedly connected in the plug connector slot, and a screw hole matching the shape of the fastening screw is provided on the plug connector.

[0014] Optionally, the limit support assembly includes a support frame fixedly connected to the middle part of the engaging rack, a second weakened 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, 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.

[0015] 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 opened on the assembly area.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, by setting up an adjustment component and a locking component, the bone stent 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 stent 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 stent reducer to ensure the accuracy of the bone stent reducer, so that the bone stent reducer can take into account both accuracy and efficiency during use.

[0017] By setting up an engaging rack and a connecting component, one end of the engaging rack is fixedly connected to the pliers head, and the other end is movably connected through the connecting component, so that a deflection can occur between the movably connected end of the engaging rack and the pliers head, and the entire engaging 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.

[0018] 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 cooperates with the adjustment component, so that the occlusal rack can improve the function of the adjustment component.

[0019] By providing the clamping piece in the connecting component and the raised area outside 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 provided 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, thereby ensuring the stability of the occlusal rack during use.

[0020] 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

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of an adjustable automatic bone-holding reducer for trauma orthopedics; Figure 2 It is a schematic diagram of the matching structure between the pliers head and the engaging rack; Figure 3 for Figure 2 The enlarged structural diagram at A in the middle; Figure 4 for Figure 2 The enlarged structural diagram at B in the middle; Figure 5 It is a schematic diagram of the partial cross-sectional structure of the clamp head; Figure 6 for Figure 5 The enlarged structural diagram at C in the middle; Figure 7 for Figure 5 The enlarged structural diagram at D in the middle; Figure 8 It is a schematic diagram of the three-dimensional structure of the meshing rack; Fig. 9 It is a schematic diagram of the three-dimensional structure of the positioning sleeve; Fig.10 It is a schematic diagram of the structure of the first state of the positioning head and the positioning sleeve; Fig.11 It is a schematic diagram of the structure of the positioning head and the positioning sleeve in the second state of cooperation; Fig.12 It is a schematic diagram of a partial cross-sectional structure of the first clamp handle and the second clamp handle; Fig.13 for Fig.12 The enlarged structural diagram at E in the middle; Fig.14 It is a schematic diagram of the matching structure of the screw and the threaded sleeve.

[0023] Reference numerals: 1. First clamp handle; 2. Second clamp handle; 3. Clamp head; 4. First groove; 5. Engagement rack; 6. Gill shaft screw; 7. Limit strip; 8. Screw; 9. Threaded sleeve; 10. Collar; 11. Assembly area; 12. First weakened groove; 13. Plug connector; 14. Fastening screw; 15. Support frame; 16. First limit groove; 17. Limit block; 18. Movable opening; 19. Plug groove; 20. Second limit groove ; 21. Positioning sleeve; 22. Connecting column; 23. Positioning head; 24. Limiting head; 25. Second weakened 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 weakened groove; 39. Turn rod.

[0024] 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

[0025] The following is a detailed description of an adjustable automatic bone holding and reduction device for trauma orthopedics provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0026] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0027] In general, a term can be understood, at least in part, from its 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.

[0028] 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” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0029] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. 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 may be similarly interpreted accordingly.

[0030] like Figures 1 to 14 As shown, an embodiment of the present invention provides an adjustable automatic bone reducor 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 reducor, which are used to be held by medical staff and to adjust the size of the opening of the pliers head 3 by pinching. Evenly distributed depressions are arranged on the outside of the first handle 1 and the second handle 2, which can be adapted to the hands of medical staff and improve the friction when the medical staff holds the bone. The inner sides of the first handle 1 and the second handle 2 are 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 reducor 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 reducor.

[0031] The ends of the first pliers handle 1 and the second pliers handle 2 are fixedly connected with pliers heads 3. When the first pliers handle 1 and the second pliers handle 2 are pinched, the first pliers handle 1 and the second pliers handle 2 can be deflected around the gill axis screw 6, thereby driving the pliers heads 3 to open and close, thereby adjusting 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 heads 3, and an engaging rack 5 is sleeved in the assembly area 11. The assembly area 11 provided on the pliers heads 3 provides space for the installation and deformation of the engaging rack 5, so that the engaging rack 5 can be offset within a certain range during the process of clamping the bones, thereby allowing the engaging rack 5 to have a larger contact area with the bones, thereby improving the stability during the bone clamping process.

[0032] An adjusting component is used to adjust the relative position between the first clamp handle 1 and the second clamp handle 2, and the adjusting component is connected to the second clamp handle 2; a locking component is used to lock the adjusting component, and the locking component is connected to the first clamp handle 1; a connecting component is used to connect and fix the engaging rack 5 and the clamp head 3, and the connecting component is connected to the clamp head 3; a limiting support component is used to limit the position of the engaging rack 5 on the inner side of the assembly area 11, and the limiting support component is connected to the engaging rack 5.

[0033] In this embodiment, if Figure 12 to Figure 14As 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 realizing 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 wrap around the outside of the bearing seat 32, thereby forming a wrapping 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 in the threaded sleeve 9. A limiting strip 7 is sleeved on the end of the screw 8 away from the threaded sleeve 9, and a movable opening 18 adapted to the shape of the limiting strip 7 is opened on the screw 8, 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 connecting end between the limit bar 7 and the screw 8 can be deflected and moved 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 shift through the threads 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 retainer reducer.

[0034] In this embodiment, if Fig.12 and Fig.13 As shown, the limit strip 7 is arc-shaped, and a guide groove 33 is provided on the limit strip 7, and an active groove 37 matched with 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 active 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 the first clamp handle 1 to slide relative to each other. The existence of the active 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 active 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, and ensuring the stability of the relative sliding process between the adjustment component and the first clamp handle 1. 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.

[0035] In this embodiment, if Figure 12 to Figure 14As 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 strip 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, and when the end of the connecting frame 34 connected to the positioning plug plate 35 is not subjected to external force, its position makes the positioning plug plate 35 embed into the positioning groove 36 on the limit strip 7 to lock the limit strip 7, the connecting frame 34 is away from the two ends of the limit strip 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 a ring 10.

[0036] A third weakened groove 38 is provided on the outside of one end where the connecting frame 34 is connected to the first groove 4. The third weakened groove 38 makes the thickness of the connecting frame 34 at this location thinner and weaker, so that it can bend at this location and produce corresponding deformation when 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, the index finger needs to be inserted into the ring 10 and Push it in the direction of the clamp head 3, so that the connecting frame 34 is deformed at the third weakened groove 38, and drive the positioning plug plate 35 to withdraw from the positioning groove 36 on the limit strip 7, release the lock of the limit strip 7, and after the opening size of the clamp head 3 is initially adjusted to match the thickness of the bone, loosen the ring 10, remove the external force of the connecting frame 34, and the connecting frame 34 can automatically reset under the action of its own elastic force, drive the positioning plug plate 35 to be inserted into the positioning groove 36 again, lock the limit strip 7 to achieve the cooperation between the locking component and the adjustment component, and realize the preliminary locking of the position of the clamp head 3, so that the entire bone retainer can be operated quickly and efficiently during the preliminary locking process.

[0037] In this embodiment, if Figure 2 and Figures 8 to 11As 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 sleeved with a positioning head 23, and the positioning head 23 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 opened on the positioning sleeve 21. A convex area 30 is arranged on the outer end of the positioning head 23 close to 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 protruding area 30, and the clamping piece 26 is provided with a second groove 29 adapted to the shape of the protruding area 30. During the insertion of the positioning head 23 into the positioning sleeve 21, the positioning head 23 may be squeezed by the clamping piece 26 and deformed to a certain extent to facilitate the protruding 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 protruding area 30 and the second groove 29 are connected, so that the positioning head 23 and the positioning sleeve 21 are connected.

[0038] 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 a sleeve connection is formed between the raised area 30 on the positioning head 23 and 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 the positioning head 23 and the positioning sleeve 21 can generate relative rotation, and then the end of the occlusal rack 5 provided with the connecting column 22 and the positioning head 23 can deflect following 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 generate a connection with the external shape of the bone. The adaptability is improved, 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 holding reducer. The displaceable characteristics of the occlusal rack 5 caused by the positioning head 23 and the positioning sleeve 21 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.

[0039] 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 sleeve connection operation between the positioning head 23 and the positioning sleeve 21. Evenly distributed through holes 28 are provided between the clamping pieces 26, and one end of the clamping piece 26 facing the inside of the positioning sleeve 21 forms an open structure through the through holes 28. One end of the clamping piece 26 facing the inside of the positioning sleeve 21 is fixedly connected with a wrapping head 27. One end of the clamping piece 26 is provided with a 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 extruded, 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 socket connection 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 displacement ability of the occlusal rack 5, but also be easy to disassemble and assemble, and is convenient for 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 make the positioning head 23 squeeze deep into the positioning sleeve 21, and there will be no problem of falling off.

[0040] In this embodiment, if Figure 2 and Figure 3 as well as Figures 5 to 8 As shown, the end of the bite rack 5 away from the connecting column 22 is fixedly connected with the plug connector 13, and the connection between the bite rack 5 and the plug connector 13 is provided with a first weakened groove 12, and the pliers head 3 is provided with a plug slot 19 adapted to the shape of the plug connector 13, and the plug slot 19 is threadedly connected with a fastening screw 14, and the plug connector 13 is provided with a screw hole adapted to the shape of the fastening screw 14. The bite rack 5 is provided with one end of the plug connector 13, which is mainly used for the connection and fixation between the bite 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 14 is screwed. 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 bite rack 5 and the pliers head 3. The first weakened groove 12 opened between the bite rack 5 and the plug connector 13 makes the thickness and width of the bite rack 5 at this location smaller than other areas on the bite rack 5, and the strength is weaker and easy to deform. As a result, the bite rack 5 can be twisted at this location when it is offset by external force, which makes it easy for the bite rack 5 to adapt to the outer surface of the bone during the bone clamping process.

[0041] 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 weakened groove 25 symmetrically distributed on both sides of the support frame 15 is opened on the side of the meshing rack 5 close to the assembly area 11. The second weakened 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 weakened 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.

[0042] 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. One 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 gap matching the shape of the limit head 24 is provided on the assembly area 11. The second limit groove 20, the first weakened groove 12 and the positioning head 23, as well as 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 also make the overall structural strength of the occlusal rack 5 weaker. Therefore, a limit support assembly is provided. After the adjustment assembly is fine-tuned, the limit support assembly on the occlusal rack 5 is in close contact with the inner wall of the assembly area 11, supporting the overall structure of the occlusal rack 5 and ensuring the strength of the occlusal rack 5 during the bone holding process. The support frame 15 and the limit block 17 form a support for the middle part of the occlusal rack 5 for the limit support assembly.

[0043] 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 greater 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 limit groove 16, forming a limit for the occlusal rack 5 to prevent the occlusal rack 5 from excessively deviating and misaligning. The cooperation between the limit head 24 and the second limit groove 20 is the same as the cooperation between the support frame 15, the first limit groove 16, and the limit block 17. The difference is that the limit head 24 is an auxiliary support and deviation 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.

[0044] 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 limiting strip 7, the ring 10 drives the connecting frame 34 to deform at the third weakened groove 38, and then drives the positioning plate 35 to withdraw from the positioning groove 36 on the limiting strip 7, releases the lock of 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.

[0045] 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 is twisted 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 reacting on the occlusal rack 5 and the pliers head 3, the ring 10 is loosened, and the connecting frame 34 drives the positioning plug plate 35 to reset under the action of its own elastic force, and drives the positioning plug plate 35 to insert 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.

[0046] 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 bone, and complete the adjustment and use process of the entire bone retainer reducer.

[0047] 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 deform the occlusal rack 5 at the first weakened groove 12 and the second weakened groove 25, and pull the plug connector 13 out of the plug groove 19, and use 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.

[0048] Take out the replaced occlusal rack 5, insert the connecting column 22 and the positioning head 23 into the positioning sleeve 21, the outer surface of the positioning head 23 and the raised area 30 squeeze the clamping piece 26, and the clamping piece 26 is offset and deformed 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 the plug connector 13 is inserted into the plug slot 19, and then the fastening screw 14 is tightened to complete the disassembly and replacement process of the occlusal rack 5.

[0049] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An adjustable automatic bone repositioner for trauma orthopedics, characterized in that: The 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 sides of the first pliers handle and the second pliers handle are provided with a first groove, and the ends of the first pliers handle and the second pliers handle are fixedly connected with a pliers head, and an assembly area is provided on the pliers head, and an engaging rack is sleeved in the assembly area; An adjusting component, used for adjusting the relative position between the first clamp handle and the second clamp handle, wherein the adjusting component 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 and the pliers head, wherein the connecting assembly is connected to the pliers head; The position-limiting support assembly is used to limit the position of the meshing rack inside the assembly area, and the position-limiting support assembly is connected to the meshing rack.

2. The adjustable automatic bone repositioner for trauma orthopedics 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 with a threaded sleeve, a screw is threadedly connected in the threaded sleeve, a limit strip is provided at one end of the screw away from the threaded sleeve, a movable opening matched with the shape of the limit strip is opened on the screw, and the screw and the limit strip are connected by a rotating rod.

3. The adjustable automatic bone repositioner for trauma orthopedics according to claim 2, characterized in that: The limit strip 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 strip and the guide groove. The limit strip is sleeved in the movable groove, and the limit strip has evenly distributed positioning grooves on one side facing the clamp head.

4. The adjustable automatic bone repositioner for trauma orthopedics 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 strip, 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 far away from the two 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 where the connecting frame is connected to the first groove.

6. The adjustable automatic bone repositioner for trauma orthopedics according to claim 1, characterized in that: The connecting component 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, a raised area is provided on the outside of the positioning head near one end of the connecting column, the positioning sleeve is provided with evenly distributed clamping sheets that are adapted to the shape of the positioning head, and the clamping sheet is provided with a second groove that is adapted to the shape of the raised area.

7. The adjustable automatic bone repositioner for trauma orthopedics according to claim 6, characterized in that: 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 forms an open structure through the through holes, and one end of the clamping piece facing the interior of the positioning sleeve is fixedly connected with a wrapping head.

8. The adjustable automatic bone repositioner for trauma orthopedics according to claim 7, characterized in that: A plug connector is fixedly connected to one end of the engaging rack away from the connecting column, a first weakened groove is provided at the connection between the engaging rack and the plug connector, a plug connector groove matching 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 matching the shape of the fastening screw is provided on the plug connector.

9. The adjustable automatic bone repositioner for trauma orthopedics according to claim 8, characterized in that: The limit support assembly includes a support frame fixedly connected to the middle part of the meshing rack, a second weakened groove symmetrically distributed on both sides of the support frame is provided on a side of the meshing rack close to the assembly area, a limit block corresponding to the position of the support frame is fixedly connected to the assembly area, 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.

10. The adjustable automatic bone repositioner for trauma orthopedics according to claim 9, 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 gaps are left between the limit head and the support frame and the assembly area. A second limit groove that matches the shape of the limit head is opened on the assembly area.

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