CN112842501B

CN112842501B - Adjustable bone fracture plate and perforating device used for same

Info

Publication number: CN112842501B
Application number: CN202011639541.0A
Authority: CN
Inventors: 李博; 张泽宇; 刘佳敏; 张耀平; 张沥青
Original assignee: Suzhou Koneno Biotechnology Co ltd
Current assignee: Suzhou Koneno Biotechnology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-06-17
Anticipated expiration: 2040-12-31
Also published as: CN112842501A

Abstract

The present application relates to adjustable bone plates and to perforating devices for such bone plates; the adjustable bone fracture plate comprises a first plate body, a second plate body and a connecting screw; the first plate body and the second plate body are both provided with a plurality of through holes; a groove is formed in the end face of one of the first plate body and the second plate body, and a convex block is arranged on the end face of the other of the first plate body and the second plate body and can be inserted into the groove; a waist-shaped through hole is formed in the side wall of one side of the groove, and a threaded fixing hole matched with the waist-shaped through hole is formed in the convex block; when the convex block is inserted in the groove, the connecting screw can pass through the waist-shaped through hole to be in threaded connection with the threaded fixing hole. The punching device for the bone fracture plate comprises a conveying mechanism, a bone fracture plate fixing mechanism, a positioning mechanism and a punching mechanism. This application makes the whole size of coaptation board adjustable to can be applicable to more different patients and affected parts, enlarged the application scope of this application coaptation board.

Description

Adjustable bone fracture plate and perforating device used for same

Technical Field

The application relates to the technical field of bone fracture plates, in particular to an adjustable bone fracture plate and a punching device for the same.

Background

Bone plates are a class of medical devices used to fix bone fractures, often used in conjunction with bone screws in the clinic. When in use, the bone fracture plate is usually positioned at an affected part of a bone, then holes are drilled on the bone, and bone screws are inserted through locking holes or pressurizing holes arranged on the bone fracture plate and then screwed into the bone, so that the bone fracture plate is connected with the bone.

Currently, in the related art, the bone fracture plate is usually a metal long plate with a plurality of through holes (locking holes or pressurizing holes), and the front end of the plate is bent according to different affected parts to fit the bone. The length of the bone plate and the position of the through hole are relatively fixed.

In view of the above related arts, the inventor believes that the bone plate in the related art has a fixed size, cannot be applied to different patients and affected parts, and the application range is affected.

Disclosure of Invention

To the not enough that correlation technique exists, in order to enlarge the application scope of coaptation board, this application provides an adjustable coaptation board and is used for perforating device of this coaptation board.

In a first aspect, the present application provides an adjustable bone plate, which adopts the following technical scheme:

the adjustable bone fracture plate comprises a first plate body, a second plate body and a connecting screw; the first plate body and the second plate body are both provided with a plurality of through holes;

a groove is formed in the end face of one of the first plate body and the second plate body, and a convex block is arranged on the end face of the other of the first plate body and the second plate body and can be inserted into the groove; a waist-shaped through hole is formed in the side wall of one side of the groove, and a thread fixing hole matched with the waist-shaped through hole is formed in the bump; when the convex block is inserted in the groove, the connecting screw can pass through the waist-shaped through hole to be in threaded connection with the threaded fixing hole.

Through adopting above-mentioned technical scheme, can adjust the degree of depth that the lug inserted the recess through adjusting the relative position relation of waist shape through-hole and thread fixing hole to relative distance between first plate body and the second plate body has been adjusted, and then has adjusted the holistic length of coaptation board, with patient and the affected part of being suitable for the difference.

Optionally, an end face of one end of the first plate body, which is not provided with the groove or the bump, is connected with a support pin, and the support pin is bent; the two support needles are symmetrically arranged.

By adopting the technical scheme, the connection stability of the bone fracture plate and the skeleton is enhanced; and simultaneously, the bone fixing device is also beneficial to fixing small bone blocks near the joint or bone blocks which cannot give holding force to the screw thread. In addition, the bending degree of the supporting needle can be adjusted according to actual conditions so as to adapt to different affected parts.

Optionally, one side of the first plate body and one side of the second plate body, which are attached to the skeleton, are provided with pressure relief grooves.

By adopting the technical scheme, the contact between the bone fracture plate and the affected part of the bone is reduced, and the influence of the bone fracture plate on the blood circulation of the bone is reduced.

Optionally, a medicine bag is arranged in the pressure reduction groove.

By adopting the technical scheme, the medicine bag can release various medicines, so that the healing of bones can be promoted.

Optionally, the through hole is formed by 3/4 circular holes communicated with each other, one is a threaded locking hole, and the other is a pressurizing counter-sunk hole.

By adopting the technical scheme, which type of hole can be freely selected according to actual needs, so that the operation is more flexible, and the universality of the bone fracture plate is stronger; and the design of combining the two holes can save the occupied space of the through hole on the first plate body or the second plate body.

Optionally, the through holes are uniformly arranged on the first plate body or the second plate body along the length direction thereof.

By adopting the technical scheme, the stress of each position of the bone fracture plate is balanced, the occurrence of stress concentration is reduced, and the stability of the connection of the bone fracture plate and a skeleton is improved.

In a second aspect, the application provides a perforating device for the bone fracture plate, which adopts the following technical scheme:

the punching device for the bone fracture plate comprises a conveying mechanism, a bone fracture plate fixing mechanism, a positioning mechanism and a punching mechanism;

the conveying mechanism is used for conveying the bone fracture plate fixing mechanism to match with the punching mechanism for punching; the positioning mechanism is positioned on one side of the bone fracture plate fixing mechanism and comprises a positioning template, a light emitter and a light receiver;

the positioning template is connected to one side of the bone fracture plate fixing mechanism and moves synchronously along with the movement of the bone fracture plate fixing mechanism, and a plurality of positioning through holes are formed in the positioning template; the positions of the positioning through holes correspond to the positions of the pre-punched holes of the bone fracture plate one by one;

the light transmitter and the light receiver are arranged on two sides of the positioning template, and the light receiver is electrically connected with the conveying mechanism and the punching mechanism respectively; along with the removal of locating template, when the positioning through-hole removed between light emitter and the light receiver, the light that the light emitter sent just in time passed through positioning through-hole and was received by the light receiver, and the light receiver signals this moment, and transport mechanism stops the conveying, and the mechanism of punching begins to punch.

By adopting the technical scheme, whether the positioning of the punching bone fracture plate is accurate or not is determined by whether the light rays penetrate through the positioning through holes or not, so that the accuracy of the punching position can be improved; meanwhile, the requirement of manual observation is reduced, and the automation degree and the punching efficiency are improved.

Optionally, the bone fracture plate fixing mechanism comprises a bottom plate, a baffle plate, a moving plate, a screw, a fixing plate with a threaded hole and a guide rod, wherein the baffle plate, the moving plate, the screw, the fixing plate with a threaded hole and the guide rod are arranged on the bottom plate;

the bottom plate is horizontally arranged and is provided with a chip collecting groove sunken towards the inside; the baffle and the moving plate are oppositely arranged and matched with each other to fix the bone fracture plate; the fixed plate is arranged on the outer side of the moving plate; the screw rod is in threaded fit connection with the threaded hole of the fixed plate and is fixedly connected with the movable plate; the moving plate moves towards the baffle under the driving of the screw; two ends of the guide rod are respectively connected with the movable plate and the fixed plate to prevent the movable plate from rotating.

By adopting the technical scheme, the bone fracture plate needing to be punched is stably fixed in the bone fracture plate fixing mechanism, so that the punching accuracy is facilitated.

Optionally, the punching mechanism comprises a hanger and a punch;

the hanging bracket crosses over the bone fracture plate fixing mechanism from the upper part and comprises a cross beam, two upright columns and a lifting cylinder, wherein the cross beam is horizontally arranged, and the upright columns are vertically arranged and are respectively connected to two ends of the cross beam; the lifting cylinders are also provided with two lifting cylinders which correspond to the upright posts one by one, and the lifting cylinders are positioned at the bottoms of the corresponding upright posts; and the perforating machine is hung below the beam.

By adopting the technical scheme, when punching is needed, the lifting cylinder drives the cross beam to descend by withdrawing the cylinder arm, and the punching machine also descends synchronously; when the height of the hole puncher is reduced to the preset height, the hole puncher starts punching.

Optionally, the punching machine is provided with a drill bit, and the upper end of the drill bit is provided with an annular brush.

By adopting the technical scheme, the annular brush can polish the drilled holes of the drill bit, so that burrs are reduced, and the drilling quality is improved

In summary, the present application includes at least one of the following beneficial effects:

1. this application coaptation board passes through the design of recess and lug, waist shape through-hole and thread fixing hole, makes the relative distance between first plate body and the second plate body adjustable to make the holistic length of coaptation board adjustable, and then can be applicable to more different patients and affected parts, enlarged the application scope of this application coaptation board.

2. Due to the arrangement of the supporting needles in the bone fracture plate, the bone fracture plate is more stably connected with bones; and simultaneously, the bone fixing device is also beneficial to fixing small bone blocks near the joint or bone blocks which cannot give holding force to the screw thread. In addition, the bending degree of the supporting needle can be flexibly adjusted according to actual conditions, so that the bone fracture plate can adapt to more different affected parts, and the application range of the bone fracture plate is expanded.

3. According to the punching device, whether the punching bone fracture plate reaches the designated punching position is determined by whether light rays penetrate through the positioning through holes, so that the positioning is more accurate, and the punching precision is higher; meanwhile, manual observation is reduced, human errors are reduced, and the automation degree and the punching efficiency are improved.

Drawings

FIG. 1 is a schematic structural view of a bone plate according to an embodiment of the present application;

FIG. 2 is a schematic elevational view of a bone plate according to an embodiment of the present application;

FIG. 3 is a perspective view of a hole-making device (bone plate attachment) according to an embodiment of the present application;

fig. 4 is a perspective view of another angle of the hole-making device of the present application (without the bone plate installed).

Description of reference numerals: 1. a first plate body; 11. a groove; 111. a waist-shaped through hole; 2. a second plate body; 21. a bump; 211. a threaded fixing hole; 3. a connecting screw; 4. a through hole; 41. a threaded locking hole; 42. pressurizing the counter bore; 5. a supporting needle; 6. a pressure reducing tank; 7. medicine package; 100. a bone plate; 200. a transport mechanism; 300. a bone fracture plate fixing mechanism; 310. A base plate; 311. a chip collecting groove; 312. a vacuum tube; 320. a baffle plate; 321. a longitudinal plate; 322. a transverse plate; 330. moving the plate; 340. a screw; 350. a fixing plate; 360. a guide bar; 400. a positioning mechanism; 410. positioning a template; 411. positioning the through hole; 420. a light emitter; 430. a light receiver; 500. a punching mechanism; 510. a hanger; 511. a cross beam; 512. a column; 513. a lifting cylinder; 520. a perforating machine; 521. a drill bit; 522. a motor; 523. an annular brush.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples.

Currently, the size of the bone plate is usually fixed, and the bone plate is poorly adapted to patients with different body sizes and affected parts in different situations. The inventor discovers that the perforating device for the bone fracture plate at present often needs manual positioning, so that the perforating position precision is poor, and the quality of the bone fracture plate is uneven.

Based on the problems, the inventor researches and adopts the split type plate body, and adjusts the relative distance between the plate bodies by arranging the waist-shaped through holes, so that the whole size of the bone fracture plate is adjustable, and the applicability of the bone fracture plate is improved. For the problem of punching precision, the inventor adopts a light detection method, and judges whether the positioning is accurate or not by detecting whether the light passes through the through hole, so that the judgment mode is more visual and more accurate, and the punching precision is improved.

Referring to fig. 1, an adjustable bone plate 100 includes a first plate 1, a second plate 2, and a connection screw 3.

Referring to fig. 1, the first plate 1 is made of a titanium alloy material and has a rectangular plate-shaped structure, one end surface of the first plate is provided with a groove 11 recessed inward along a length direction of the first plate, and a waist-shaped through hole 111 (i.e., the waist-shaped through hole 111 is provided in a side wall of the groove 11) communicating with the groove 11 is provided in an upper surface (defined as a surface of one side to be attached to a bone is a lower surface, and a surface of the other side opposite to the lower surface is an upper surface, the same applies below) of the first plate 1. Meanwhile, the second plate body 2 is also made of titanium alloy material and has a rectangular plate-shaped structure, and the width and the height of the rectangular plate-shaped structure are equal to those of the first plate body 1. A convex block 21 matched with the groove 11 is arranged on one end face of the second plate body 2, and a threaded fixing hole 211 matched with the waist-shaped through hole 111 is formed in the upper surface of the convex block 21.

Referring to fig. 1, in assembly, the protrusion 21 is inserted into the groove 11, and the connection screw 3 passes through the waist-shaped through hole 111 from top to bottom to be threadedly connected to the threaded fixing hole 211, thereby connecting the first plate 1 and the second plate 2 together. By means of the arrangement of the waist-shaped through holes 111, the relative position relation between the waist-shaped through holes 111 and the thread fixing holes 211 can be adjusted to adjust the depth of the convex blocks 21 inserted into the grooves 11, so that the relative distance between the first plate body 1 and the second plate body 2 can be adjusted, and the overall length of the bone fracture plate 100 can be adjusted to be suitable for different patients and affected parts.

Referring to fig. 1, a plurality of through holes 4 are formed in both the first plate body 1 and the second plate body 2; each through hole 4 is composed of 3/4 circular holes which are communicated with each other and have the same radius (namely, the central distance of the two circular holes is the sum of the radii of the two circular holes)

Multiple); one of the two 3/4 round holes is a threaded locking hole 41 and the other is an unthreaded press counter bore 42. The threaded locking hole 41 is adapted to cooperate with a locking screw to stably connect the bone plate 100 to a bone (wherein the locking screw body is inserted into the bone and threads provided on the sides of the locking screw head cooperate with the threads of the threaded locking hole 41 to secure it); a pressure counter bore 42 for cooperating with a conventional screw (without a thread on the side of the locking screw head) for dynamic pressure fixation after screwing into the bone. The two holes are combined together and can be freely selected for use according to actual requirements, so that the bone fracture plate 100 can be used as a pressurizing bone fracture plate or a locking inner support; and the design of combining the two holes can save the space occupied by the through hole 4 on the first plate body 1 or the second plate body 2.

Referring to fig. 1, the through holes 4 formed in the first plate 1 are uniformly arranged along the length direction of the first plate 1, and the through holes 4 formed in the second plate 2 are uniformly arranged along the length direction of the second plate 2, so that the stress of the bone fracture plate 100 is more balanced, the occurrence of stress concentration is reduced, and the connection stability between the bone fracture plate 100 and the bone is improved.

Referring to fig. 1 and 2, two support pins 5 are symmetrically connected to an end surface of the first plate 1, which is not provided with the groove 11, and the support pins 5 are bent; the supporting needle 5 is embedded into the bone, which is beneficial to enhancing the connection stability of the bone fracture plate 100 and the bone; and also facilitates fixation of smaller bone pieces located near the joint or bone pieces that cannot give holding force to the screw threads (e.g., thinner bone pieces). The bending degree of the supporting needle 5 can be adjusted according to actual conditions so as to adapt to different affected parts.

Referring to fig. 1 and 2, a plurality of pressure reduction grooves 6 are symmetrically formed on the lower surfaces (i.e., the surfaces attached to the bones) of the first plate body 1 and the second plate body 2, so that the contact area between the plate bodies of the bone fracture plate 100 and the bones is reduced, and the influence of the bone fracture plate 100 on the blood circulation of the bones is reduced. In addition, a medicine bag 7 is fixed in the decompression groove 6, and can release antibacterial medicines and healing promoting medicines, thereby promoting the healing of bones. The medicated bag 7 is made of cotton cloth and is connected with the decompression tank 6 via metal connecting strip (not shown); specifically, the metal connecting strip penetrates through the medicine bag 7, and then two ends of the metal connecting strip are welded on the pressure reducing groove 6 to complete the fixation of the medicine bag 7.

Referring to fig. 3 and 4, the embodiment of the present application further discloses a punching device for the bone plate 100, which comprises a conveying mechanism 200, a bone plate fixing mechanism 300, a positioning mechanism 400 and a punching mechanism 500.

Referring to fig. 3, the conveying mechanism 200 is a conveying belt, the bone plate fixing mechanism 300 is fixedly connected to the conveying mechanism 200, and the conveying mechanism 200 is used for conveying the bone plate fixing mechanism 300 to a preset position to be matched with the punching mechanism 500 for punching.

Referring to fig. 3 and 4, the bone plate fixation mechanism 300 includes a base plate 310, a spacer plate 320, a moving plate 330, a screw 340, a fixation plate 350, and a guide rod 360. Wherein, the bottom plate 310 is horizontally disposed and fixed on the conveying mechanism 200. The baffle 320 is L-shaped and comprises a longitudinal plate 321 the length direction of which is the same as the conveying direction of the conveying mechanism 200 and a transverse plate 322 the length direction of which is vertical to the conveying direction of the conveying mechanism 200; the baffle 320 is fixedly connected to the bottom plate 310 with the sharp angle outwards; two moving plates 330 are arranged, and are respectively corresponding to the longitudinal plates 321 and the transverse plates 322 one by one and parallel to each other; a fixed plate 350 is arranged on the outer side (i.e. the side far away from the baffle 320) of each moving plate 330, a threaded through hole is formed in the center of the fixed plate 350, and the fixed plate 350 is fixedly connected to the bottom plate 310 and is parallel to the corresponding moving plate 330; a screw 340 is vertically arranged between the moving plate 330 and the corresponding fixed plate 350, one end of the screw 340 is fixedly connected to the center of the moving plate 330, the other end of the screw passes through the threaded through hole of the fixed plate 350 and is connected with a hand wheel (or a driving motor), and the screw 340 is in threaded fit with the threaded through hole of the fixed plate 350; meanwhile, two guide rods 360 are arranged between the moving plate 330 and the corresponding fixed plate 350 and perpendicular to the moving plate and the fixed plate, the two guide rods 360 are positioned at two sides of the screw 340, one end of each guide rod 360 is connected to the moving plate 330, the other end of each guide rod 360 penetrates through a through hole formed in the fixed plate 350, and the guide rods 360 play a role in guiding and preventing the moving plate 330 from rotating. The moving plate 330 can move along the axis of the screw 340 by the rotation of the screw 340 around the axis and the guidance of the guide rod 360, so that the moving plate 330 can move relative to the baffle 320, the distance between the baffle 320 and the moving plate 330 is adjusted, and the bone plate 100 to be perforated can be stably fixed in the space enclosed by the baffle 320 and the moving plate 330 by the matching of the baffle 320 and the moving plate 330.

Referring to fig. 4, the upper surface of the base plate 310 (i.e., the surface on the side away from the delivery mechanism 200) is provided with an inwardly recessed chip-collecting groove 311 below the bone plate 100; when the bone plate 100 is fixed on the base plate 310 to be perforated, the perforation bits can fall into the chip collecting grooves 311; the chip collecting groove 311 is communicated with the vacuum tube 312, and can discharge punching chips.

Referring to fig. 3 and 4, the positioning mechanism 400 is located on one side of the bone plate fixation mechanism 300 and includes a positioning plate 410, a light emitter 420, and a light receiver 430. The positioning template 410 is horizontally arranged and connected to the side surface of the bottom plate 310, the positioning template 410 can move synchronously with the movement of the bone plate fixing mechanism 300, and a plurality of positioning through holes 411 are formed in the positioning template 410; the positioning through holes 411 are in one-to-one correspondence with the pre-drilled holes of the bone plate 100. The light emitter 420 and the light receiver 430 are respectively arranged at the upper side and the lower side of the positioning template 410 through a bracket, and the light receiver 430 is respectively electrically connected with the conveying mechanism 200 and the punching mechanism 500; the positioning template 410 moves along with the movement of the fixing mechanism 300, when the positioning through hole 411 does not move between the light emitter 420 and the light receiver 430, the light emitted by the light emitter 420 is blocked by the positioning template 410, and the light receiver 430 cannot receive the light; when the positioning through hole 411 moves between the light emitter 420 and the light receiver 430, the light emitted from the light emitter 420 passes through the positioning through hole 411 and is received by the light receiver 430, the light receiver 430 sends a signal by a conventional means, the transmission mechanism 200 stops transmitting after receiving the signal, and thus the fixing mechanism 300 and the bone plate 100 fixed thereon stop moving; meanwhile, the punching mechanism 500 starts punching after receiving the signal. The positioning template 410 can be a metal plate or a hard plastic plate; in order to improve the application range, the positioning template 410 may be detachable, for example, a slot is formed on the side surface of the bottom plate 310, and the positioning template 410 is clamped therein, so that the bone fracture plate 100 with different specifications can be positioned and perforated by replacing different positioning templates 410. It should be noted that the light emitted from the light emitter 420 is a well focused light, such as laser, to improve the precision of the hole drilling.

Referring to fig. 3, the punching mechanism 500 includes a hanger 510 and a punch 520; wherein the hanger 510 spans across the conveying mechanism 200 and the bone plate fixing mechanism 300 from above; the hanger 510 comprises a cross beam 511, a vertical column 512 and a lifting cylinder 513; the cross beam 511 is horizontally arranged, the upright columns 512 are vertically arranged, and two upright columns are arranged and are respectively connected to two ends of the cross beam 511; the two lifting cylinders 513 are respectively in one-to-one correspondence with the upright columns 512, and each lifting cylinder 513 is vertically and fixedly connected to the bottom of the corresponding upright column 512; the hanger 510 is thus formed in a door shape; the punch 520 is suspended below the cross beam 511.

Referring to fig. 3 and 4, the punch 520 includes a motor 522 and a drill 521 connected to an output end of the motor 522; the upper end of the drill bit 521 is provided with an annular brush 523; the brush can polish the holes punched by the drill bit 521, so that burrs are reduced, and the punching quality is improved.

When the device is operated, a positioning template 410 is prepared and connected on the bottom plate 310 according to the punching position of the bone fracture plate 100; placing the bone plate 100 to be perforated on the bottom plate 310, and fixing the bone plate 100 through the baffle plate 320 and the moving plate 330; the transmission mechanism 200 is opened, so that the bone plate fixing mechanism 300, the positioning mechanism 400 and the punching bone plate 100 move forwards; when the light emitted by the light emitter 420 is received by the light receiver 430 (indicating the position of the locating through-hole 411 is reached), the delivery mechanism 200 stops delivering, and the bone plate 100 is stationary; the lifting cylinder 513 drives the beam 511 to descend, and the punching machine 520 is started to punch.

The device determines whether the bone fracture plate 100 needing to be punched reaches the designated punching position by whether light rays penetrate through the positioning through holes 411 or not, so that the positioning accuracy and the punching position accuracy can be improved; meanwhile, manual observation is reduced, and the automation degree and the punching efficiency are improved.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. Bone plate perforating device, its characterized in that: comprises a transmission mechanism (200), a bone plate fixing mechanism (300), a positioning mechanism (400) and a punching mechanism (500);

the conveying mechanism (200) is used for conveying the bone plate fixing mechanism (300) to be matched with the punching mechanism (500) for punching; the positioning mechanism (400) is positioned at one side of the bone plate fixing mechanism (300) and comprises a positioning template (410), a light transmitter (420) and a light receiver (430);

the positioning template (410) is connected to one side of the bone plate fixing mechanism (300) and moves synchronously along with the movement of the bone plate fixing mechanism (300), and a plurality of positioning through holes (411) are formed in the positioning template (410); the positions of the positioning through holes (411) correspond to the positions of the pre-punched holes of the bone fracture plate (100) one by one;

the light emitter (420) and the light receiver (430) are arranged on two sides of the positioning template (410), and the light receiver (430) is electrically connected with the conveying mechanism (200) and the punching mechanism (500) respectively; when the positioning through hole (411) moves to a position between the light emitter (420) and the light receiver (430) along with the movement of the positioning template (410), the light emitted by the light emitter (420) just passes through the positioning through hole (411) and is received by the light receiver (430), at the moment, the light receiver (430) sends a signal, the transmission mechanism (200) stops transmitting, and the punching mechanism (500) starts punching.

2. A bone plate perforating device as claimed in claim 1, wherein: the bone plate fixing mechanism (300) comprises a bottom plate (310), a baffle (320), a moving plate (330), a screw (340), a fixing plate (350) with a threaded hole and a guide rod (360), wherein the baffle (320), the moving plate (330), the screw (340), the fixing plate (350) and the guide rod are arranged on the bottom plate;

the bottom plate (310) is horizontally arranged and is provided with a chip collecting groove (311) which is sunken towards the interior of the bottom plate; the baffle (320) and the moving plate (330) are oppositely arranged and are matched with each other to fix the bone fracture plate (100); the fixed plate (350) is arranged on the outer side of the moving plate (330); the screw (340) is in threaded fit connection with the threaded hole of the fixed plate (350) and is fixedly connected with the moving plate (330), and the moving plate (330) moves towards the baffle (320) under the driving of the screw (340); two ends of the guide rod (360) are respectively connected with the movable plate (330) and the fixed plate (350) to prevent the movable plate (330) from rotating.

3. A bone plate perforating device as claimed in claim 1, wherein: the punching mechanism (500) comprises a hanger (510) and a punching machine (520);

the hanging bracket (510) stretches across the bone plate fixing mechanism (300) from the upper part and comprises a cross beam (511), upright columns (512) and a lifting cylinder (513), wherein the cross beam (511) is horizontally arranged, the upright columns (512) are vertically arranged and are provided with two, and the two upright columns are respectively connected to two ends of the cross beam (511); the two lifting cylinders (513) are in one-to-one correspondence with the upright posts (512), and the lifting cylinders (513) are positioned at the bottoms of the corresponding upright posts (512); the perforating machine (520) is hung below the cross beam (511).

4. A bone plate perforating device as claimed in claim 1, wherein: the punching machine (520) is provided with a drill bit (521), and an annular brush (523) is arranged at the upper end of the drill bit (521).