A bone drill system for a conveyor belt loop titanium plate

Abstract

The present invention provides a bone drill system for a belt-loop titanium plate. A bone drill system for a belt-loop titanium plate includes: a bone drill and a holding forceps; the bone drill includes a plugging member, a tube body, and a drill bit; the holding forceps is used for holding the drill bit; the plugging member, the tube body, and the drill bit are connected in sequence, and both the plugging member and the drill bit are detachably connected to the tube body; a first traction member is provided on one side of the plugging member connected to the tube body, and the first traction member is movably connected to the plugging member and is used for connecting to the tightening wire of the belt-loop titanium plate; a second traction member is provided on one side of the drill bit connected to the tube body, and the second traction member is movably connected to the drill bit and is used for connecting to the loop-turning wire of the belt-loop titanium plate. The bone drill system for a belt-loop titanium plate provided by the present invention solves the problem that there is a lack of special tools for this operation in the prior art. The above-mentioned operation process is relatively complex, has high requirements for the operation of doctors, is inconvenient to operate, thus resulting in a longer operation time and indirectly increasing the risk of patient infection.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a bone drill system for a belt-loop titanium plate. Background Art

[0002] Acromioclavicular joint dislocation refers to the disruption of the normal anatomical relationship of the acromioclavicular joint (AC joint), resulting in the loss of stability of the connection between the clavicle and the acromion. This injury is common in athletes, especially in contact sports (such as football, wrestling, ice hockey) and activities prone to falls such as cycling and skiing.

[0003] In the surgical treatment of acromioclavicular joint dislocation, using a belt-loop titanium plate for treatment is a common surgical method, mainly used for treating relatively severe acromioclavicular joint dislocation.

[0004] In the above surgical operation, two incisions need to be made first above the clavicle and in front of the coracoid process. An access cannula is placed at the incision in front of the coracoid process, and then the locator is used to determine the position of the bone tunnel through the incision. A bone drill is used to create the bone tunnel, piercing through the clavicle and the coracoid process. The locator is removed, the belt-loop titanium plate is passed through, and then the clamping forceps are used to stretch the loop line of the belt-loop titanium plate until the titanium plate at the lower end of the belt-loop titanium plate is exposed below the coracoid process. Then the loop line is untied, and the titanium plate at the upper end of the belt-loop titanium plate is resisted, and the two tightening lines are alternately stretched until the titanium plate is tightened. After the clavicle is reduced, the excess tightening lines are cut off to complete the operation.

[0005] Due to the lack of dedicated tools for this operation in the prior art, the above surgical process is relatively complex, with high requirements for the doctor's operation and inconvenient operation, resulting in a longer surgical time and indirectly increasing the risk of patient infection. Summary of the Invention

[0006] To solve the above problems, the present invention provides a bone drill system for a belt-loop titanium plate to solve the above problems existing in the prior art.

[0007] The present invention provides a bone drill system for a belt-loop titanium plate, including: a bone drill and a clamping forceps;

[0008] The bone drill includes a plugging member, a tube body, and a drill bit;

[0009] The clamping forceps are used to clamp the drill bit;

[0010] The tube body is a hollow tube, and its internal cavity is used to accommodate the belt-loop titanium plate;

[0011] The plugging member, the tube body, and the drill bit are connected in sequence, and both the plugging member and the drill bit are detachably connected to the tube body;

[0012] On one side where the plugging member is connected to the pipe body, a first traction member is provided. The first traction member is movably connected to the plugging member and is used to connect to the tightening wire of the looped titanium plate.

[0013] On one side where the drill bit is connected to the pipe body, a second traction member is provided. The second traction member is movably connected to the drill bit and is used to connect to the loop-turning wire of the looped titanium plate.

[0014] Optionally, the first traction member and the second traction member have the same structure.

[0015] The first traction member includes two stepped buckles and a traction member body.

[0016] The cross-section of the traction member body is semicircular. At both ends of the end face of the traction member body, two stepped buckles are symmetrically arranged. At the end of the plugging member on the side where the plugging member is connected to the pipe body, a first annular stepped groove adapted to the shape of the stepped buckles is provided. Both stepped buckles are located in the first annular stepped groove and rotate in the first annular stepped groove.

[0017] A first opening is provided on the traction member body. The first opening is used to pass through the tightening wire of the looped titanium plate and then connect the tightening wire of the looped titanium plate to the traction member body.

[0018] Optionally, the clamping pliers include a pliers handle assembly and a pliers head assembly.

[0019] The head of the pliers handle assembly is provided with the pliers head assembly, and the pliers handle assembly is used to open and close the pliers head assembly.

[0020] The pliers head assembly includes an upper pliers head and a lower pliers head.

[0021] Both the upper pliers head and the lower pliers head are arc-shaped and are arranged in a mirror image up and down. A first pliers mouth for clamping the drill bit is formed between the inner sides of the upper pliers head and the lower pliers head.

[0022] At the front ends of the upper pliers head and the lower pliers head, semicircular notches arranged in a mirror image are further provided. The two semicircular notches form a second pliers mouth for clamping the drill bit.

[0023] Optionally, the diameter of the semicircular notch at the front end of the upper pliers head is not greater than the diameter of the drill bit.

[0024] Optionally, the arc radius of the upper pliers head is 2 mm - 2.25 mm.

[0025] Optionally, anti-slip structures are provided on both the first pliers mouth and the second pliers mouth.

[0026] Optionally, the anti-slip structure is a serrated structure.

[0027] Optionally, anti-slip elastic members are sleeved on both the upper pliers head and the lower pliers head.

[0028] Optionally, the length of the bone drill is 250 mm - 260 mm, and the lengths of the plugging member and the drill bit are both 25 mm - 30 mm.

[0029] Optionally, the diameter of the bone drill is 4.50 mm - 5 mm.

[0030] In the bone drill system of the present invention, by placing the looped titanium plate inside the bone drill, during the operation, there is no need for an additional operation of implanting the looped titanium plate. While the bone drill passes through the drilling site, the implantation of the looped titanium plate can be achieved simultaneously, greatly simplifying the operation process, also simplifying the operation process of the doctor, significantly reducing the overall operation time, and improving the efficiency and safety of the entire operation process, and indirectly reducing the risk of infection of the patient. Brief Description of the Drawings

[0031] Figure 1 It is a schematic diagram of the overall structure of the bone drill of a bone drill system for conveying a looped titanium plate according to the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the combination of the plugging member and the first traction member of a bone drill system for conveying a looped titanium plate according to the present invention;

[0033] Figure 3 It is a schematic diagram of the structure of the drill bit and the second traction member of a bone drill system for conveying a looped titanium plate according to the present invention;

[0034] Figure 4 It is a cross-sectional view of the combination of the plugging member and the first traction member of a bone drill system for conveying a looped titanium plate according to the present invention;

[0035] Figure 5 It is for a bone drill system for conveying a looped titanium plate according to the present invention Figure 4 The enlarged view at A;

[0036] Figure 6 It is a three-dimensional structure diagram of the combination of the plugging member and the first traction member of a bone drill system for conveying a looped titanium plate according to the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the first traction member of a bone drill system for conveying a looped titanium plate according to the present invention;

[0038] Figure 8 It is a schematic diagram of the overall structure of the clamping pliers of a bone drill system for conveying a looped titanium plate according to the present invention;

[0039] Figure 9 It is a schematic diagram of the structure of the combination of the jaw assembly and a part of the pliers handle assembly of a bone drill system for conveying a looped titanium plate according to the present invention;

[0040] Figure 10 It is a schematic diagram of the overall structure of the titanium plate with a loop.

[0041] List of reference numerals:

[0042] 1. Bone drill; 1-1. Plugging member; 1-2. Tube body; 1-3. Drill bit; 2. Holding forceps; 2-1. Forceps handle assembly; 2-2. Forceps head assembly; 2-2-1. Upper forceps head; 2-2-2. Lower forceps head; 2-2-3. First forceps mouth; 2-2-4. Second forceps mouth; 3. First traction member; 3-1. Step-shaped buckle; 3-2. Traction member body; 4. Second traction member; 5. First annular step-shaped groove; 6. Titanium plate with a loop; 6-1. Tightening wire; 6-2. Loop-turning wire; 6-3. Upper titanium plate; 6-4. Lower titanium plate. Detailed implementation manners

[0043] To make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0046] Referring to Figures 1 to 10 , the present invention provides a bone drill system for conveying a titanium plate with a loop, which can solve the problem that there is a lack of special tools for this operation in the prior art. The above operation process is relatively complex, has high requirements for the operation of doctors, is inconvenient to operate, so the operation time is relatively long, and it indirectly increases the risk of patient infection.

[0047] A bone drill system for conveying a titanium plate with a loop provided by the present invention includes: a bone drill 1 and a holding forceps 2;

[0048] The bone drill 1 includes a plugging member 1-1, a tube body 1-2, and a drill bit 1-3;

[0049] The clamping pliers 2 are used to clamp the drill bit 1-3;

[0050] The tube body 1-2 is a hollow tube, and its internal cavity is used to accommodate the button-loop titanium plate 6;

[0051] The plugging member 1-1, the tube body 1-2, and the drill bit 1-3 are connected in sequence, and both the plugging member 1-1 and the drill bit 1-3 are detachably connected to the tube body 1-2;

[0052] On one side where the plugging member 1-1 is connected to the tube body 1-2, there is a first traction member 3. The first traction member 3 is movably connected to the plugging member 1-1 and is used to connect with the tightening wire 6-1 of the button-loop titanium plate 6;

[0053] On one side where the drill bit 1-3 is connected to the tube body 1-2, there is a second traction member 4. The second traction member 4 is movably connected to the drill bit 1-3 and is used to connect with the loop-turning wire 6-2 of the button-loop titanium plate 6.

[0054] Among them, in this application, the button-loop titanium plate 6 (see Figure 10 ) belongs to the prior art. The button-loop titanium plate is composed of two titanium plates (the upper titanium plate 6-3 and the lower titanium plate 6-4), a tightening wire 6-1, and a loop-turning wire 6-2, and they are woven together by existing connection methods;

[0055] In addition, the detachable connection between the plugging member 1-1 and the drill bit 1-3 and the tube body 1-2 can include threaded connection, snap connection, pin connection, key connection, etc. When the connection method between the plugging member 1-1 and the drill bit 1-3 and the tube body 1-2 adopts threaded connection, both sides where the plugging member 1-1 and the drill bit 1-3 are connected to the tube body 1-2 are provided with external thread structures, and both ends of the tube body 1-2 are provided with internal thread structures. Therefore, in this application, the button-loop titanium plate 6 can be placed inside the tube body 1-2, and then the loop-turning wire 6-2 of the woven button-loop titanium plate 6 is passed through the tube body 1-2 and knotted and fixed on the second traction member 4 of the drill bit 1-3. By screwing the drill bit 1-3 onto the tube body 1-2, the tightening wire 6-1 of the button-loop titanium plate 6 is knotted and fixed with the first traction member 3 of the plugging member 1-1. By screwing the plugging member 1-1 onto the tube body 1-2, the installation of the button-loop titanium plate 6 in the bone drill system for conveying the button-loop titanium plate is completed, and this process is simple to operate.

[0056] Referring to Figures 2 to 7 , optionally, the structures of the first traction member 3 and the second traction member 4 are the same;

[0057] The first traction member 3 includes two stepped snap fasteners 3-1 and a traction member body 3-2;

[0058] The cross-section of the traction member body 3-2 is semi-circular. At both ends of the end face of the traction member body 3-2, two stepped buckles 3-1 are symmetrically arranged. At the end of the sealing member 1-1 on the side where the sealing member 1-1 is connected to the pipe body 1-2, a first annular stepped groove 5 with a shape adapted to the stepped buckle 3-1 is provided. Both stepped buckles 3-1 are located within the first annular stepped groove 5 and rotate within the first annular stepped groove 5.

[0059] A first opening is provided on the traction member body 3-2. The first opening is used for passing through the tightening wire 6-1 of the button-loop titanium plate 6, and then connecting the tightening wire 6-1 of the button-loop titanium plate 6 to the traction member body 3-2.

[0060] Among them, the arrangement that the two stepped buckles 3-1 can rotate within the first annular stepped groove 5 enables the tightening wire 6-1 of the button-loop titanium plate 6 not to knot when the tightening wire 6-1 of the button-loop titanium plate 6 is connected to the first traction member 3 due to the screwing between the sealing member 1-1 and the pipe body 1-2, thereby affecting the surgical process.

[0061] Referring to Figures 8 to 9 , optionally, the clamping forceps 2 includes a handle assembly 2-1 and a jaw assembly 2-2;

[0062] The head of the handle assembly 2-1 is provided with the jaw assembly 2-2. The handle assembly 2-1 is used to open and close the jaw assembly 2-2;

[0063] The jaw assembly 2-2 includes an upper jaw 2-2-1 and a lower jaw 2-2-2;

[0064] Both the upper jaw 2-2-1 and the lower jaw 2-2-2 are arc-shaped and are arranged in a vertically corresponding mirror image. A first jaw 2-2-3 for clamping the drill bit 1-3 is formed between the inner sides of the upper jaw 2-2-1 and the lower jaw 2-2-2;

[0065] At the front ends of the upper jaw 2-2-1 and the lower jaw 2-2-2, semi-circular notches arranged in a mirror image are further provided. The two semi-circular notches form a second jaw 2-2-4 for clamping the drill bit 1-3.

[0066] Among them, the handle assembly 2-1 can be implemented by any existing technology. For example, the handle assembly 2-1 includes a handle, a transmission main shaft, and a shaft assembly;

[0067] The handle includes a handle body and a trigger. The handle body has a grip portion for holding. The first end of the trigger is rotatably mounted on the handle body through a trigger return member (such as a trigger spring). The second end of the trigger and the grip portion are away from each other to form a first V-shaped opening. When the trigger is squeezed and rotated, the trigger return member undergoes elastic deformation, and the second end of the trigger approaches the grip portion to make the first V-shaped opening smaller. When the trigger is released, the trigger return member undergoes elastic recovery to drive the second end of the trigger to rotate away from the grip portion, making the first V-shaped opening larger. The shaft assembly extends distally from the handle and defines a longitudinal axis. A plurality of ligating clips are arranged in the shaft assembly, and the jaw assembly 2-2 is mounted at the distal end of the shaft assembly. The transmission main shaft is mounted in the handle body through a main shaft return member. The transmission main shaft is located above the trigger. The transmission main shaft is in transmission connection with the shaft assembly, and the trigger is in transmission connection with the transmission main shaft. Therefore, the jaw handle assembly 2-1 completes the opening and closing of the jaw assembly 2-2 through the above structural limitations.

[0068] Optionally, the diameter of the semi-circular notch at the front end of the upper jaw 2-2-1 is not greater than the diameter of the drill bit 1-3.

[0069] Among them, the limitation that the diameter of the semi-circular notch at the front end of the upper jaw 2-2-1 is not greater than the diameter of the drill bit 1-3 enables the second jaw 2-2-4 to stably hold the drill bit 1-3 and ensures that the drill bit 1-3 will not fall off.

[0070] Optionally, the arc radius of the upper jaw 2-2-1 is 2 mm - 2.25 mm.

[0071] Among them, the limitation of the arc radius of the upper jaw 2-2-1 enables the first jaw 2-2-3 to stably hold the drill bit 1-3 and ensures that the drill bit 1-3 will not fall off.

[0072] Optionally, anti-slip structures are provided on both the first jaw 2-2-3 and the second jaw 2-2-4.

[0073] Among them, the setting of the anti-slip structure can increase the friction between the first jaw 2-2-3 or the second jaw 2-2-4 and the drill bit 1-3 when the first jaw 2-2-3 or the second jaw 2-2-4 holds the drill bit 1-3, so that the first jaw 2-2-3 or the second jaw 2-2-4 can hold the drill bit 1-3 more stably and ensure that the drill bit 1-3 will not fall off.

[0074] Optionally, the anti-slip structure is a serrated structure.

[0075] The setting of the serrated structure can prevent the first jaw 2-2-3 or the second jaw 2-2-4 from slipping when holding the drill bit 1-3, increase the friction between the first jaw 2-2-3 or the second jaw 2-2-4 and the drill bit 1-3, so that the first jaw 2-2-3 or the second jaw 2-2-4 can hold the drill bit 1-3 more stably and ensure that the drill bit 1-3 will not fall off.

[0076] Optionally, anti-slip elastic members are sleeved on both the upper jaw 2-2-1 and the lower jaw 2-2-2.

[0077] Among them, the elastic material of the anti-slip elastic member is not limited to materials such as rubber and silica gel. The setting of the anti-slip elastic member can make the first jaw 2-2-3 and the second jaw 2-2-4 clamp the drill bit 1-3 more stably, ensuring that the drill bit 1-3 will not fall off.

[0078] Optionally, the length of the bone drill 1 is 250 mm - 260 mm, and the lengths of the plug 1-1 and the drill bit 1-3 are both 25 mm - 30 mm.

[0079] Among them, the limitation of the lengths of the above components can ensure the structural stability when the drill bit 1-3 rotates on the premise of being able to penetrate the collarbone and the coracoid process.

[0080] Optionally, the diameter of the bone drill 1 is 4.50 mm - 5 mm.

[0081] Among them, the diameter of the bone drill 1 is determined by the size required to create the bone tunnel.

[0082] Furthermore, the material of the bone drill 1 is stainless steel.

[0083] Among them, the above limitation can make the bone drill 1 meet the requirements of working strength.

[0084] Working principle (the connection method between the plug 1-1 and the drill bit 1-3 and the tube body 1-2 is threaded connection):

[0085] Make two incisions above the clavicle and in front of the coracoid process. Place an access cannula at the incision in front of the coracoid process. Then, determine the position of the bone tunnel through the incision using a locator, and use a bone drill to create a bone tunnel, drilling through the clavicle and the coracoid process. Remove the locator. At this time, the clamping forceps 2 pass through the access cannula, and the first jaw 2-2-3 on the jaw assembly 2-2 clamps the drill bit 1-3 (the first jaw 2-2-3 is perpendicular to the drill bit 1-3). Rotate the tube body 1-2 to loosen the drill bit 1-3. After loosening, use the second jaw 2-2-4 on the jaw assembly 2-2 to clamp the drill bit (the second jaw 2-2-4 is parallel to the drill bit), and pull out the drill bit 1-3 through the access cannula, pulling out the loop suture 6-2. Stretch the loop suture 6-2 until the lower titanium plate 6-4 at the lower end of the button-loop titanium plate 6 is exposed below the coracoid process, and then untie the loop suture 6-2. Pull out the tube body 1-2 upward until the upper titanium plate 6-3 at the upper end of the button-loop titanium plate 6 is exposed on the upper surface of the clavicle. Then, separate the plug 1-1 from the tube body 1-2, untie the plug 1-1, place the lower end of the tube body 1-2 against the surface of the upper titanium plate 6-3 at the upper end of the button-loop titanium plate 6, and alternately stretch the two tightening sutures until the two upper titanium plates 6-3 and the lower titanium plate 6-4 are tightened, and the clavicle is reduced. Withdraw the tube body 1-2 and cut off the excess tightening suture 6-1 to complete the operation.

[0086] It should be noted that not all steps and modules in the above-mentioned processes and system structure diagrams are necessary, and some steps or modules can be ignored according to actual needs. The execution order of each step is not fixed and can be adjusted according to needs. The system structure described in the above-mentioned embodiments can be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities respectively, or some components in multiple independent devices may be jointly implemented.

[0087] In the above embodiments, the hardware modules can be implemented mechanically or electrically. The present invention has been described in detail through the drawings and preferred embodiments. However, the present invention is not limited to these disclosed embodiments. Based on the above-mentioned multiple embodiments, those skilled in the art can know that the code review means in different embodiments can be combined to obtain more embodiments of the present invention, and these embodiments are also within the protection scope of the present invention.

Claims

1. A bone drill system for a conveyor belt loop titanium plate, characterized in that, Comprising: A bone drill (1) and a holding forceps (2); The bone drill (1) includes a plugging member (1-1), a tube body (1-2), and a drill bit (1-3); The holding forceps (2) is used for holding the drill bit (1-3); The tube body (1-2) is a hollow tube, and its internal cavity is used for accommodating a loop titanium plate (6); The plugging member (1-1), the tube body (1-2), and the drill bit (1-3) are connected in sequence, and both the plugging member (1-1) and the drill bit (1-3) are detachably connected to the tube body (1-2); One side of the plugging member (1-1) connected to the tube body (1-2) is provided with a first traction member (3), and the first traction member (3) is movably connected to the plugging member (1-1) and is used for connecting with the tightening wire (6-1) of the loop titanium plate (6); One side of the drill bit (1-3) connected to the tube body (1-2) is provided with a second traction member (4), and the second traction member (4) is movably connected to the drill bit (1-3) and is used for connecting with the loop-turning wire (6-2) of the loop titanium plate (6).

2. The bone drill system for the titanium plate of the conveyor belt loop according to claim 1, characterized in that, The first traction member (3) and the second traction member (4) have the same structure; The first traction member (3) includes two stepped buckles (3-1) and a traction member body (3-2); The cross-section of the traction member body (3-2) is semi-circular, and two of the stepped buckles (3-1) are symmetrically arranged at both ends of the end face of the traction member body (3-2). An end of the plugging member (1-1) on the side where the plugging member (1-1) is connected to the tube body (1-2) is provided with a first annular stepped groove (5) adapted to the shape of the stepped buckle (3-1). Both of the stepped buckles (3-1) are located in the first annular stepped groove (5) and rotate in the first annular stepped groove (5); A first opening is provided on the traction member body (3-2), and the first opening is used for passing through the tightening wire (6-1) of the loop titanium plate (6) and then connecting the tightening wire (6-1) of the loop titanium plate (6) to the traction member body (3-2).

3. The bone drill system for the titanium plate of the conveyor belt loop according to claim 2, characterized in that, The holding forceps (2) includes a handle assembly (2-1) and a jaw assembly (2-2); The head of the handle assembly (2-1) is provided with the jaw assembly (2-2), and the handle assembly (2-1) is used for opening and closing the jaw assembly (2-2); The jaw assembly (2-2) includes an upper jaw (2-2-1) and a lower jaw (2-2-2); Both the upper jaw (2-2-1) and the lower jaw (2-2-2) are arc-shaped and are arranged in an upper and lower corresponding mirror image. A first jaw opening (2-2-3) for holding the drill bit (1-3) is formed between the inner sides of the upper jaw (2-2-1) and the lower jaw (2-2-2); The front ends of the upper jaw (2-2-1) and the lower jaw (2-2-2) are further provided with semi-circular notches arranged in a mirror image, and the two semi-circular notches form a second jaw opening (2-2-4) for holding the drill bit (1-3).

4. A bone drill system for a titanium plate of a conveyor belt loop, characterized in that, The diameter of the semi-circular notch at the front end of the upper jaw (2-2-1) is not greater than the diameter of the drill bit (1-3).

5. A bone drill system for a conveyor belt loop titanium plate according to claim 4, characterized in that, The arc radius of the upper jaw (2-2-1) is 2 mm - 2.25 mm.

6. A bone drill system for a titanium plate of a conveyor belt loop, according to claim 5, characterized in that, Anti-slip structures are provided on both the first jaw (2-2-3) and the second jaw (2-2-4).

7. A bone drill system for a titanium plate of a conveyor belt loop, according to claim 6, characterized in that, The anti-slip structure is a serrated structure.

8. A bone drill system for a titanium plate of a conveyor belt loop, characterized in that, Anti-slip elastic members are sleeved on both the upper jaw (2-2-1) and the lower jaw (2-2-2).

9. A bone drill system for a conveyor belt loop titanium plate according to claim 1 or 3, characterized in that, The length of the bone drill (1) is 250 mm - 260 mm, and the lengths of both the plugging member (1-1) and the drill bit (1-3) are 25 mm - 30 mm.

10. A bone drill system for a titanium plate of a conveyor belt loop, according to claim 9, characterized in that The diameter of the bone drill (1) is 4.50 mm - 5 mm.

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