Bone plate bender

Abstract

The present invention discloses a bone plate bender, comprising: an articulated shaft; a first pliers body, which is provided with a first axial hole and a second axial hole, the first axial hole penetrates the first pliers body along the front-to-back direction, the second axial hole penetrates the first pliers body along the left-to-right direction, the first axial hole is detachably connected to the articulated shaft or the second axial hole is detachably connected to the articulated shaft, and a first handle is provided at the bottom of the first pliers body; a second pliers body, which is provided with a third axial hole and a fourth axial hole, the third axial hole penetrates the second pliers body along the front-to-back direction, the fourth axial hole penetrates the second pliers body along the left-to-right direction, the third axial hole is detachably connected to the articulated shaft or the fourth axial hole is detachably connected to the articulated shaft, and a second handle is provided at the bottom of the second pliers body. In the bone plate bender of the present invention, the first pliers body and the second pliers body form a variety of connection modes through the articulated shaft, so as to realize the bending of the bone plate by the bone plate bender in various directions. The present invention can be applied to a device for treating bones or joints.

Description

Technical Field

[0001] The invention relates to the field of devices for treating bones or joints, and in particular to a bone plate bender. Background Art

[0002] Bone plates are used for internal fixation of fractures. Bone plates are manufactured according to the shape of human bones so that they fit the bones and achieve accurate and reliable fixation. Due to the differences in bone morphology at different positions, a bone plate bender is required to bend and shape the bone plate. However, the existing bone plate bender has a relatively single bending direction for the bone plate. Summary of the invention

[0003] The purpose of the present invention is to provide a bone plate bender to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solutions adopted to solve the above technical problems are:

[0005] A bone plate bender, comprising:

[0006] Articulated shaft;

[0007] The first pliers body is provided with a first axial hole and a second axial hole, the first axial hole penetrates the first pliers body in the front-to-back direction, the second axial hole penetrates the first pliers body in the left-to-right direction, the first axial hole is detachably connected to the hinge shaft or the second axial hole is detachably connected to the hinge shaft, and a first handle is provided at the bottom of the first pliers body;

[0008] The second pliers body is provided with a third axial hole and a fourth axial hole. The third axial hole penetrates the second pliers body along the front-to-back direction, and the fourth axial hole penetrates the second pliers body along the left-to-right direction. The third axial hole is detachably connected to the hinge shaft or the fourth axial hole is detachably connected to the hinge shaft. A second handle is provided at the bottom of the second pliers body.

[0009] The beneficial effects of the present invention are as follows: the first axial hole or the second axial hole of the first pliers body can be detachably matched and connected to the hinge axis, the third axial hole or the fourth axial hole of the second pliers body can be detachably matched and connected to the hinge axis, the bone plate is placed between the first pliers body and the second pliers body, the first handle and the second handle are held, the first pliers body and the second pliers body are rotated around the hinge axis and approached to each other, then the first pliers body and the second pliers body approach and bend the bone plate, the first pliers body and the second pliers body form a variety of connection modes through the hinge axis, after the hinge axis is disassembled, the first pliers body and the second pliers body are reassembled in different ways, so that the bending direction of the bone plate bender is changed, thereby realizing the bone plate bender bending the bone plate in multiple directions.

[0010] The bone plate bender can clamp and bend bone plates of different thicknesses, widths or outline sizes, has good versatility, and realizes the function of bending in multiple directions by changing the assembly form of the hinge shaft, the first clamp body, and the second clamp body.

[0011] As a further improvement of the above technical solution, the articulated shaft is detachably connected to the first shaft hole and the third shaft hole, or the articulated shaft is detachably connected to the second shaft hole and the fourth shaft hole.

[0012] The first axial hole of the first caliper body is connected to the third axial hole of the second caliper body through an articulated shaft, or the second axial hole of the first caliper body is connected to the fourth axial hole of the second caliper body through an articulated shaft, thereby reducing the types of connection forms between the first caliper body and the second caliper body and simplifying the connection form between the first caliper body and the second caliper body, thereby making the disassembly and installation between the first caliper body, the second caliper body and the articulated shaft clearer and more convenient.

[0013] As a further improvement of the above technical solution, the front side of the first caliper body is a first front side, the front and rear sides of the second caliper body are respectively a second front side and a second back side, the second front side is provided with an axle seat, the axle seat protrudes forward, the fourth shaft hole is provided on the axle seat, the second front side is provided with a pressure block, and the pressure block protrudes forward;

[0014] The hinge shaft is detachably connected to the second shaft hole and the fourth shaft hole, and the first front side faces the second front side;

[0015] Alternatively, the hinge shaft is detachably connected to the first shaft hole and the third shaft hole, and the first front side faces the second back side.

[0016] An axis seat is provided on the second front side of the second clamp body. When the hinge shaft is connected to the second axis hole and the fourth axis hole, the first front side of the first clamp body faces the second front side, and the pressure block cooperates with the first front side to bend the bone plate. When the hinge shaft is connected to the first axis hole and the third axis hole, the first front side faces the second back side, and the first clamp body and the second clamp body shear the bone plate around the hinge shaft to form a bending effect, thereby making the disassembly and installation between the first clamp body, the second clamp body and the hinge shaft clearer and more convenient.

[0017] As a further improvement of the above technical solution, the pressing block is detachably connected to the second front surface.

[0018] The pressing block is detachably connected to the second front surface, so that the pressing block is easy to replace.

[0019] As a further improvement of the above technical solution, a connecting column is provided on the rear side of the pressing block, and a connecting hole is provided on the second front side, and the connecting column is detachably connected to the connecting hole.

[0020] The pressing block is detachably connected to the connecting hole of the first front side through the connecting column, so that the position of the pressing block is fixed and not easy to loosen, thereby ensuring the bending effect.

[0021] As a further improvement of the above technical solution, with the direction of the first front side as the front direction of the first caliper body, a first card slot is provided on the left outer wall of the first caliper body, and the first card slot penetrates the first caliper body along the front-to-back direction. With the position of the second front side relative to the second back side as the front direction of the second caliper body, a second card slot is provided on the right outer wall of the second caliper body, and the second card slot penetrates the second caliper body along the front-to-back direction. When the hinge shaft is cooperated and connected to the second axial hole and the fourth axial hole, the first card slot is connected to the second card slot.

[0022] When the hinge shaft is connected to the second axial hole and the fourth axial hole, the first slot of the first clamp body is connected to the second slot of the second clamp body, the bone plate is placed in the first slot and the second slot, the first handle and the second handle are held, and the second clamp body is rotated around the hinge shaft, so that the second slot rotates relative to the first slot, so that the second slot and the first slot bend the bone plate.

[0023] As a further improvement of the above technical solution, the first card slot is provided with a first adjusting block, the first adjusting block is detachably connected to the inner side wall of the first card slot, and the distance between the first adjusting block and the other inner side wall of the first card slot is adjustable; the second card slot is provided with a second adjusting block, the second adjusting block is detachably connected to the inner side wall of the second card slot, and the distance between the second adjusting block and the other inner side wall of the second card slot is adjustable.

[0024] Place the bone plate in the first slot and the second slot, adjust the distance between the first adjustment block and the inner wall facing it according to the width of the bone plate, so that the first adjustment block can fasten the bone plate in the first slot, adjust the distance between the second adjustment block and the inner wall facing it, so that the second adjustment block can fasten the bone plate in the second slot, so that the bone plate is firmly connected to the first slot and the second slot.

[0025] As a further improvement of the above technical solution, a third slot is provided on the left outer wall of the second caliper body, and the third slot penetrates the second caliper body along the front-to-back direction. When the hinge shaft is connected to the first axial hole and the third axial hole, the third slot is connected to the first slot.

[0026] When the hinge shaft is connected to the first axial hole and the third axial hole, the first slot of the first clamp body is connected to the third slot of the second clamp body, the bone plate is placed in the first slot and the third slot, the first handle and the second handle are held, and the second clamp body is rotated around the hinge shaft, so that the third slot rotates relative to the first slot, so that the third slot and the first slot bend the bone plate.

[0027] As a further improvement of the above technical solution, the first handle is bent toward the rear of the first pliers body.

[0028] The first handle of the first pliers body is bent backwards, which is convenient for distinguishing the first pliers body from the second pliers body. When the first handle is held to rotate the first pliers body relative to the second pliers body, if the hinge shaft is cooperatively connected to the second axis hole and the fourth axis hole, a force-saving lever is formed between the first handle and the hinge shaft. If the hinge shaft is cooperatively connected to the first axis hole and the third axis hole, one hand holds the first handle and the other hand holds the second handle. Since the first handle and the second handle are staggered with each other, the two hands exert force alternately, so that the two hands can exert force better, which helps to increase the bending force of the first pliers body and the second pliers body.

[0029] As a further improvement of the above technical solution, a concave cavity is provided on the first front side, and the second axial hole penetrates the side wall of the concave cavity in the left-right direction. When the hinge shaft is connected to the second axial hole and the fourth axial hole, the shaft seat is inserted into the concave cavity.

[0030] When the hinge shaft is connected to the second shaft hole and the fourth shaft hole, the shaft seat on the second clamp body is installed in the concave cavity on the first front side, and the concave cavity is used to limit the shaft seat, so that the connection between the first clamp body and the second clamp body is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments;

[0032] Figure 1 It is an axonometric schematic diagram of an embodiment of the bone plate bender provided by the present invention, wherein the hinge shaft is cooperatively connected to the second shaft hole and the fourth shaft hole;

[0033] Figure 2 It is a schematic isometric view from another angle of one embodiment of the bone plate bender provided by the present invention, wherein the hinge shaft is cooperatively connected to the second shaft hole and the fourth shaft hole;

[0034] Figure 3 It is a schematic assembly diagram of an embodiment of the bone plate bender provided by the present invention, wherein the hinge shaft is cooperatively connected to the second shaft hole and the fourth shaft hole;

[0035] Figure 4It is an axonometric schematic diagram of an embodiment of the bone plate bender provided by the present invention, wherein the hinge shaft is cooperatively connected to the first shaft hole and the third shaft hole;

[0036] Figure 5 It is a schematic assembly diagram of another angle of an embodiment of the bone plate bender provided by the present invention, wherein the hinge shaft is cooperatively connected to the first shaft hole and the third shaft hole;

[0037] Figure 6 This is an axonometric schematic diagram of a first clamp body in one embodiment of the bone plate bender provided by the present invention;

[0038] Figure 7 This is a schematic isometric view of another angle of the first clamp body in one embodiment of the bone plate bender provided by the present invention;

[0039] Figure 8 This is an axonometric schematic diagram of a second clamp body in one embodiment of the bone plate bender provided by the present invention;

[0040] Fig. 9 The present invention provides a bone plate bender, and an isometric schematic diagram of a second clamp body at another angle in one embodiment thereof.

[0041] 100, first clamp body, 101, first front side, 110, first axial hole, 120, second axial hole, 130, first handle, 140, first slot, 141, first adjusting block, 150, concave cavity, 200, second clamp body, 201, second front side, 202, second back side, 203, connecting hole, 210, third axial hole, 220, fourth axial hole, 230, second handle, 240, shaft seat, 250, pressing block, 251, connecting column, 260, second slot, 261, second adjusting block, 270, third slot, 300, hinge shaft. DETAILED DESCRIPTION

[0042] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In the description of the present invention, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood as not including the number, and above, below, within, etc. are understood as including the number.

[0045] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0046] Reference Figures 1 to 9 The bone plate bender of the present invention is provided in the following embodiments:

[0047] The bone plate bender comprises a first pliers body 100, a second pliers body 200, and a hinge shaft 300. The first pliers body 100 is provided with a first axial hole 110 and a second axial hole 120, the first axial hole 110 penetrates the first pliers body 100 in the front-to-back direction, and the second axial hole 120 penetrates the first pliers body 100 in the left-to-right direction. A first handle 130 is provided at the bottom of the first pliers body 100, and the first axial hole 110 or the second axial hole 120 of the first pliers body 100 can be detachably matched and connected to the hinge shaft 300. The second pliers body 200 is provided with a third axial hole 210 and a fourth axial hole 220, the third axial hole 210 penetrates the second pliers body 200 in the front-to-back direction, and the fourth axial hole 220 penetrates the second pliers body 200 in the left-to-right direction. A second handle 230 is provided at the bottom of the second pliers body 200, and the third axial hole 210 or the fourth axial hole 220 of the second pliers body 200 can be detachably matched and connected to the hinge shaft 300. There are eight assembly forms of the articulated shaft 300, the first pliers body 100, and the second pliers body 200. For example, if the articulated shaft 300 is connected to the first axial hole 110 and the third axial hole 210, the second pliers body 200 is swapped front to back to form two assembly forms; if the articulated shaft 300 is connected to the first axial hole 110 and the fourth axial hole 220, the second pliers body 200 is swapped left to right to form two assembly forms; if the articulated shaft 300 is connected to the second axial hole 120 and the third axial hole 210, the second pliers body 200 is swapped front to back to form two assembly forms; if the articulated shaft 300 is connected to the second axial hole 120 and the fourth axial hole 220, the second pliers body 200 is swapped left to right to form two assembly forms. When the bone plate bender bends the bone plate, the bone plate is placed between the first clamp body 100 and the second clamp body 200, and the first handle 130 and the second handle 230 are held, and the first clamp body 100 and the second clamp body 200 are rotated around the hinge shaft 300 and approached to each other, so that the first clamp body 100 and the second clamp body 200 approach and bend the bone plate. After disassembling the hinge shaft 300, the first clamp body 100 and the second clamp body 200 are reassembled in different ways, so that the bending direction of the bone plate bender changes.

[0048] In some embodiments, there are multiple ways in which the articulated shaft 300 can be detachably connected to the first shaft hole 110 or the second shaft hole 120. For example, the articulated shaft 300 is an optical shaft, and an external thread is provided at the end of the articulated shaft 300. After the articulated shaft 300 passes through the first shaft hole 110 or the second shaft hole 120, a nut is used to lock the end of the articulated shaft 300, so that the articulated shaft 300 is passed through the first shaft hole 110 or the second shaft hole 120, and the first pliers body 100 can rotate around the axis of the articulated shaft 300; or, a pin hole is provided on the end side wall of the articulated shaft 300. After the articulated shaft 300 passes through the first shaft hole 110 or the second shaft hole 120, a pin is passed through the end of the articulated shaft 300 to lock the articulated shaft 300. In the end pin hole, the articulated shaft 300 is passed through the first axis hole 110 or the second axis hole 120, and the first pliers body 100 can rotate around the axis of the articulated shaft 300; or, the end of the articulated shaft 300 is provided with an external thread, and after the end of the articulated shaft 300 passes through the first axis hole 110 or the second axis hole 120, the end of the articulated shaft 300 is threadedly connected to the third axis hole 210 or the fourth axis hole 220, so that the first pliers body 100 can rotate around the axis of the articulated shaft 300, and the first pliers body 100 can rotate relative to the second pliers body 200; of course, the way in which the articulated shaft 300 is detachably connected to the third axis hole 210 or the fourth axis hole 220 can refer to the above scheme.

[0049] In some embodiments, the articulated shaft 300 is detachably connected to the first shaft hole 110 and the third shaft hole 210 or the articulated shaft 300 is detachably connected to the second shaft hole 120 and the fourth shaft hole 220. There are four assembly forms of the articulated shaft 300, the first pliers body 100, and the second pliers body 200. For example, if the articulated shaft 300 is connected to the first shaft hole 110 and the third shaft hole 210, the second pliers body 200 is reversed to form two assembly forms; if the articulated shaft 300 is connected to the second shaft hole 120 and the fourth shaft hole 220, the second pliers body 200 is reversed to form two assembly forms.

[0050] In some embodiments, the front side of the first pliers body 100 is the first front side 101, the front and rear sides of the second pliers body 200 are the second front side 201 and the second back side 202 respectively, the hinge shaft 300 is detachably connected to the second shaft hole 120 and the fourth shaft hole 220 and the first front side 101 faces the second front side 201, or the hinge shaft 300 is detachably connected to the first shaft hole 110 and the third shaft hole 210 and the first front side 101 faces the second back side 202, then there are two assembly forms of the hinge shaft 300, the first pliers body 100, and the second pliers body 200. Among them, the second front side 201 of the second pliers body 200 is provided with an axle seat 240, the axle seat 240 protrudes forward of the second front side 201, and the fourth shaft hole 220 is arranged on the axle seat 240. The second front side 201 is provided with a pressing block 250, and the pressing block 250 protrudes forward. When the hinge axis 300 is connected to the second axial hole 120 and the fourth axial hole 220, the first front face 101 of the first pliers 100 and the second front face 201 of the second pliers 200 are opposite to each other, so that the first pliers 100 and the second pliers 200 rotate around the hinge axis 300 and approach each other, and the bone plate is placed between the pressing blocks 250 of the first front face 101 and the second front face 201, and the pressing blocks 250 of the first front face 101 and the second front face 201 bend the bone plate. When the hinge axis 300 is connected to the first axial hole 110 and the third axial hole 210, the first front face of the first pliers 100 and the second back face 202 of the second pliers 200 are opposite to each other, so that the first pliers 100 rotates around the hinge axis 300, and the bone plate is placed between the shear angles of the first pliers 100 and the second pliers 200, so that the side of the first pliers 100 and the side of the second pliers 200 bend the bone plate.

[0051] There are many ways to detachably connect the second front side 201 and the pressure block 250, for example, using a screw to pass through the pressure block 250 and then screw it into the second front side 201; or, the second front side 201 is provided with a groove, the groove passes through the side wall of the second pliers body 200 in the left-right direction, and the inner wall of the groove is provided with a buckle position, the pressure block 250 is slidably set in the groove, and the outer wall of the pressure block 250 is provided with a protrusion, the protrusion cooperates with the buckle position, so that the pressure block 250 is snap-fitted into the groove; or, the second front side 201 is provided with a connecting rod, the connecting rod is a cylinder, the connecting rod protrudes forward, the outer wall of the connecting rod is provided with an external thread, the pressure block 250 is provided with a threaded hole, and the pressure block 250 is connected to the connecting rod by threads.

[0052] In some embodiments, a connecting hole 203 is provided on the second front side 201 , and a connecting column 251 is provided on the pressing block 250 . The connecting column 251 is inserted into the connecting hole 203 , and the connecting column 251 is detachably connected to the connecting hole 203 . There are many ways to detachably connect the connecting column 251 and the connecting hole 203. For example, the connecting column 251 is a cylinder, and an external thread is provided on the outer wall of the connecting column 251; the connecting hole 203 is a round hole, and an internal thread is provided on the inner wall of the connecting hole 203, and the connecting column 251 is threadedly connected to the connecting hole 203; or, a buckle position is provided on the inner wall of the connecting hole 203, and a snap is provided on the outer wall of the connecting column 251, and the connecting column 251 is inserted into the connecting hole 203, and the snap cooperates with the buckle position to make the connecting column 251 snap-fit ​​with the connecting hole 203; or, the connecting hole 203 is a through hole, and the connecting hole 203 passes through the second pliers body 200 in the front-to-back direction, and the connecting column 251 extends to the second back side 202 of the second pliers body 200 after passing through the connecting hole 203, and the outer wall of the connecting column 251 is provided with an external thread, and a nut is used to lock the end of the connecting column 251 on the second back side 202.

[0053] The first front side 101 is oriented as the front direction of the first caliper body 100, and a first card slot 140 is provided on the left outer wall of the first caliper body 100, and the first card slot 140 penetrates the first caliper body 100 in the front-to-back direction. The position of the second front side 201 relative to the second back side 202 is oriented as the front direction of the second caliper body 200, and a second card slot 260 is provided on the right outer wall of the second caliper body 200, and the second card slot 260 penetrates the second caliper body 200 in the front-to-back direction. When the hinge shaft 300 is connected to the second shaft hole 120 and the fourth shaft hole 220, the first front side 101 faces the second front side 201, and the first card slot 140 is connected to the second card slot 260 in the front-to-back direction. The bone plate is placed in the first slot 140 and the second slot 260 , and the first handle 130 is held to rotate the first clamp body 100 around the hinge shaft 300 , so that the first slot 140 rotates relative to the second slot 260 , and the bone plate is bent by the first slot 140 and the second slot 260 .

[0054] A first adjusting block 141 is provided in the first slot 140. The first adjusting block 141 is detachably connected to the upper inner wall of the first slot 140. The distance between the first adjusting block 141 and the lower inner wall of the first slot 140 is adjustable. The bone plate is placed in the first slot 140. By adjusting the distance between the first adjusting block 141 and the lower inner wall of the first slot 140, the first adjusting block 141 is pressed against the bone plate, thereby clamping the bone plate in the first slot 140. A second adjusting block 261 is provided in the second slot 260. The second adjusting block 261 is detachably connected to the upper inner wall of the second slot 260. The distance between the second adjusting block 261 and the lower inner wall of the second slot 260 is adjustable. Place the bone plate in the second slot 260, and adjust the distance between the second adjustment block 261 and the lower inner wall of the second slot 260 to make the second adjustment block 261 press the bone plate, thereby making the second slot 260 clamp the bone plate, and finally making the bone plate be firmly pressed in the first slot 140 and the second slot 260.

[0055] A third slot 270 is provided on the left outer wall of the second clamp body 200, and the third slot 270 penetrates the second clamp body 200 in the front-to-back direction. When the hinge shaft 300 is connected to the first shaft hole 110 and the third shaft hole 210, the first front side 101 faces the second back side 202, and the third slot 270 is connected to the first slot 140 in the front-to-back direction. The bone plate is placed in the first slot 140 and the third slot 270, and the first handle 130 is held to rotate the first clamp body 100 around the hinge shaft 300, so that the first slot 140 rotates relative to the third slot 270, and the bone plate is bent by the first slot 140 and the third slot 270.

[0056] In some embodiments, the first handle 130 is bent toward the rear of the first pliers body 100. Since the first front side 101 of the first pliers body 100 faces the second front side 201 or the second back side 202 of the second pliers body 200, the first handle 130 is unfolded relative to the second handle 230, so that it is convenient for a person to hold it. When the hinge shaft 300 is connected to the first shaft hole 110 and the third shaft hole 210, the first handle 130 and the second handle 230 are unfolded, so that the first handle 130 is easier to hold when rotating around the hinge shaft 300, and the hands will not interfere with each other; when the hinge shaft 300 is connected to the second shaft hole 120 and the fourth shaft hole 220, the first handle 130 and the second handle 230 are unfolded, so that a labor-saving lever is formed between the first handle 130, the first pliers body 100, and the hinge shaft 300, so that it is convenient for the hand to exert force.

[0057] In some embodiments, a concave cavity 150 is provided on the first front side 101, and the second axial hole 120 penetrates the side wall of the concave cavity 150 in the left-right direction. When the hinge shaft 300 is cooperated and connected to the second axial hole 120 and the fourth axial hole 220, the shaft seat 240 is located in the concave cavity 150, so that the concave cavity 150 is used to limit the shaft seat 240, and when the first clamp body 100 and the second clamp body 200 rotate around the hinge shaft 300, the shaft seat 240 is prevented from loosening.

[0058] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A bone plate bender, characterized in that: include: Articulated shaft (300); A first pliers body (100) is provided with a first axial hole (110) and a second axial hole (120); the first axial hole (110) penetrates the first pliers body (100) in the front-to-back direction, and the second axial hole (120) penetrates the first pliers body (100) in the left-to-right direction; the first axial hole (110) and the hinge shaft (300) are detachably matingly connected or the second axial hole (120) and the hinge shaft (300) are detachably matingly connected; and a first handle (130) is provided at the bottom of the first pliers body (100); A second pliers body (200) is provided with a third axial hole (210) and a fourth axial hole (220); the third axial hole (210) penetrates the second pliers body (200) in the front-to-back direction, and the fourth axial hole (220) penetrates the second pliers body (200) in the left-to-right direction; the third axial hole (210) is detachably connected to the hinge shaft (300) or the fourth axial hole (220) is detachably connected to the hinge shaft (300); and a second handle (230) is provided at the bottom of the second pliers body (200); The front side of the first caliper body (100) is a first front side (101), the front and rear sides of the second caliper body (200) are respectively a second front side (201) and a second back side (202), the second front side (201) is provided with an axle seat (240), the axle seat (240) protrudes forward, the fourth axle hole (220) is arranged on the axle seat (240), the second front side (201) is provided with a pressing block (250), the pressing block (250) protrudes forward; The pressing block (250) is detachably connected to the second front surface (201); The first front side (101) is oriented as the front direction of the first pliers body (100), a first slot (140) is provided on the left outer wall of the first pliers body (100), and the first slot (140) penetrates the first pliers body (100) in the front-to-back direction; the position of the second front side (201) relative to the second back side (202) is oriented as the front direction of the second pliers body (200), a second slot (260) is provided on the right outer wall of the second pliers body (200), and the second slot (260) penetrates the second pliers body (200) in the front-to-back direction; when the hinge shaft (300) is connected to the second shaft hole (120) and the fourth shaft hole (220), the first slot (140) is connected to the second slot (260); The first handle (130) is bent toward the rear of the first pliers body (100).

2. The bone plate bender according to claim 1, characterized in that: The hinge shaft (300) is detachably connected to the first shaft hole (110) and the third shaft hole (210), or the hinge shaft (300) is detachably connected to the second shaft hole (120) and the fourth shaft hole (220).

3. The bone plate bender according to claim 2, characterized in that: The hinge shaft (300) is detachably connected to the second shaft hole (120) and the fourth shaft hole (220), and the first front side (101) faces the second front side (201); Alternatively, the hinge shaft (300) is detachably connected to the first shaft hole (110) and the third shaft hole (210), and the first front side (101) faces the second back side (202).

4. The bone plate bender according to claim 3, characterized in that: A connecting column (251) is provided on the rear side of the pressing block (250), and a connecting hole (203) is provided on the second front side (201), wherein the connecting column (251) is detachably connected to the connecting hole (203).

5. The bone plate bender according to claim 3, characterized in that: The first card slot (140) is provided with a first adjustment block (141), the first adjustment block (141) is detachably connected to the inner side wall of the first card slot (140), and the distance between the first adjustment block (141) and the other inner side wall of the first card slot (140) is adjustable; the second card slot (260) is provided with a second adjustment block (261), the second adjustment block (261) is detachably connected to the inner side wall of the second card slot (260), and the distance between the second adjustment block (261) and the other inner side wall of the second card slot (260) is adjustable.

6. The bone plate bender according to claim 3, characterized in that: A third slot (270) is provided on the left outer wall of the second caliper body (200). The third slot (270) penetrates the second caliper body (200) in the front-to-back direction. When the hinge shaft (300) is connected to the first shaft hole (110) and the third shaft hole (210), the third slot (270) is communicated with the first slot (140).

7. The bone plate bender according to claim 3, characterized in that: The first front surface (101) is provided with a concave cavity (150), and the second axial hole (120) penetrates the side wall of the concave cavity (150) in the left-right direction. When the hinge shaft (300) is connected to the second axial hole (120) and the fourth axial hole (220), the shaft seat (240) is inserted into the concave cavity (150).

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