Orthopedic drill bit with anti-infection structure

Abstract

The utility model belongs to the technical field of medical instruments, particularly relates to an orthopedic drill bit with an anti-infection structure, and aims to solve the problems that after an existing drill bit is used excessively, due to the fact that the drill bit is fixedly arranged at one end of a second drill rod, the drill bit is difficult to detach and replace, the drill bit is damaged, the whole drill bit needs to be replaced, and the working effect is reduced. Comprising a drill bit, a threaded block is fixed to the top end of the drill bit, a clamping block is arranged on the surface of the threaded block, and a drill body is arranged on the outer side of the threaded block. By rotating the drill bit, the threaded block at the top end of the drill bit is in threaded connection with the drill body, then the clamping block is pressed, the spring is compressed through pressure, and the clamping block is retracted into the clamping groove till the clamping block reaches the clamping groove formed in the surface of the drill body to be clamped, so that the drill bit is convenient to disassemble and assemble, and the situation that the drill bit is damaged after being used excessively is avoided. And as the drill bit is fixedly arranged at one end part of the second drill rod, the drill bit is difficult to disassemble and replace, the drill bit is damaged, the whole drill bit needs to be replaced, and the working effect is reduced.

Description

Technical Field

[0001] The utility model relates to an orthopedic drill bit, in particular to an orthopedic drill bit with an anti-infection structure, and belongs to the technical field of medical equipment. Background Art

[0002] Orthopedic drill bits are medical devices used for orthopedic surgery. They consist of a motor, a drill bit, and a control device, and are used for cutting, drilling, and fixing near bones and joints. There are many types of orthopedic drill bits, such as surgical drill bits, orthopedic screw drill bits, and joint repair drill bits. They are characterized by high speed, simple operation, and high accuracy, which can improve surgical efficiency and safety. In orthopedic surgery, orthopedic drill bits have become one of the essential surgical tools.

[0003] In the prior art, a new type of drill bit for orthopedic use is disclosed in announcement number CN215458393U, which includes a first drill rod, a second drill rod and a drill bit. The first drill rod, the second drill rod and the drill bit are connected to each other, and the second drill rod and the drill bit are fixedly connected. The second drill rod is located between the first drill rod and the drill bit, and a first through hole and a second through hole are respectively opened inside the second drill rod. When the drill bit is rotated, the first through hole and the second through hole on the second drill rod will cooperate with each other to absorb bone chips, thereby preventing excess bone chips from being unable to be discharged and collected.

[0004] However, in the implementation of relevant technologies, it was found that the drill bit of the above design has the following problems: when the drill bit is rotated, the first through hole and the second through hole on the second drill rod will cooperate with each other to absorb bone chips, which can prevent excess bone chips from being unable to be discharged and collected. However, after the drill bit is overused, since the drill bit is fixed on one end of the second drill rod, it is difficult to disassemble and replace the drill bit, resulting in damage to the drill bit and the need to replace the entire drill bit, which reduces the working effect. In view of this, an orthopedic drill bit with an anti-infection structure is provided to overcome the above defects. Utility Model Content

[0005] The utility model provides an orthopedic drill bit with an anti-infection structure to solve the problem that after the drill bit is overused, since the drill bit is fixed at one end of a second drill rod, it is difficult to disassemble and replace the drill bit, resulting in damage to the drill bit and the need to replace the entire drill bit, which reduces the working effect.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: an orthopedic drill bit with an anti-infection structure, comprising a drill bit, a threaded block is fixed on the top of the drill bit, and a clamping block is arranged on the surface of the threaded block;

[0007] A drill body is arranged on the outside of the thread block, a coolant tank is arranged inside the drill body, a chip removal groove is arranged on the surface of the drill body, and a cooling hole is arranged on the outside of the chip removal groove;

[0008] A knife rod is arranged on the outside of the drill body, an adjusting rod is arranged on the outside of the knife rod, the drill body is threadedly connected with the drill body through a threaded block, and a clamping groove is arranged on the outside of the drill body.

[0009] As a further solution of the utility model: a clamping structure is formed between the clamping block and the clamping groove, and a fixing block is fixed on the surface of the knife rod.

[0010] As a further solution of the utility model: one side of the fixing block is threadedly connected with a fixing bolt, one side of the fixing bolt is connected with a clamping block via a bearing, and compression springs are fixed on both sides of the clamping block.

[0011] As a further solution of the utility model: the compression spring and the fixing block are fixedly connected, the structure of the clamping block is an arc-shaped structure, and a rubber pad is fixed on one side of the clamping block.

[0012] As a further solution of the utility model: a coolant pipe runs through the interior of the cutter bar, a damping block is fixed on the outside of the coolant pipe, and shock-absorbing springs are fixed on both sides of the damping block.

[0013] As a further solution of the utility model: one side of the coolant pipe is connected to a liquid inlet, seven adjustment grooves are opened on the surface of the adjustment rod, a scale is set on one side of the seven adjustment grooves, an adjustment block is fixed to one side of the top of the knife rod, and a return spring is fixed to one side of the adjustment block.

[0014] As a further solution of the utility model: a clamping structure is formed between the adjusting block and the adjusting groove, a connecting block is fixed to the top end of the adjusting rod, and a positioning block is fixed to the top end of the connecting block.

[0015] The beneficial effects of the utility model are:

[0016] 1. By rotating the drill bit, the threaded block on the top of the drill bit is connected to the drill body thread, and then the clamping block is pressed to compress the spring through pressure, so that the clamping block shrinks into the clamping groove until it reaches the clamping groove opened on the surface of the drill body for clamping, which is convenient for disassembling and assembling the drill bit and avoids the problem that after the drill bit is overused, it is difficult to disassemble and replace the drill bit because the drill bit is fixed at one end of the second drill rod, resulting in damage to the drill bit, and the entire drill bit needs to be replaced, which reduces the working effect.

[0017] 2. After the device is used, the cleaning liquid is transported into the liquid inlet. The cleaning liquid is transported to the cooling holes on the surface of the drill body through the coolant pipe and sprayed to clean the drill body to avoid infection.

[0018] 3. By setting a damping tool bar, when the tool bar is subjected to force, the shock-absorbing spring inside the tool bar will undergo elastic deformation to form elastic potential energy. The existence of the damping block can convert part of the elastic potential energy into heat energy, thereby reducing the amplitude of the drill bit vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the drill body and drill bit separation structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the tool bar of the utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of the device of the utility model.

[0023] In the figure: 1. drill bit; 2. drill body; 3. tool rod; 4. fixing block; 5. adjusting rod; 6. adjusting block; 7. connecting block; 8. positioning block; 9. cooling hole; 10. clamping block; 11. threaded block; 12. shock-absorbing spring; 13. coolant pipe; 14. damping block; 15. reset spring; 16. fixing bolt; 17. compression spring; 18. clamping block; 19. liquid inlet. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0025] like Figures 1 to 4 As shown, an orthopedic drill bit with an anti-infection structure comprises a drill bit 1, a thread block 11 is fixed to the top of the drill bit 1, and a clamping block 10 is arranged on the surface of the thread block 11;

[0026] A drill body 2 is disposed on the outside of the thread block 11, a coolant tank is provided inside the drill body 2, a chip removal groove is provided on the surface of the drill body 2, and a cooling hole 9 is provided on the outside of the chip removal groove;

[0027] A cutter bar 3 is arranged on the outside of the drill body 2, and an adjusting rod 5 is arranged on the outside of the cutter bar 3. The drill body 2 is threadedly connected to the drill body 2 through a threaded block 11, and a clamping groove is opened on the outside of the drill body 2. Embodiment 2

[0028] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0029] A locking structure is formed between the locking block 10 and the locking groove. A fixing block 4 is fixed on the surface of the arbor 3. The locking block 10 is pressed to compress the reset spring 15 through pressure, so that the locking block 10 shrinks into the locking groove until it reaches the locking groove opened on the surface of the drill body 2 for locking, thereby enhancing the stability of the connection between the drill bit 1 and the drill body 2.

[0030] One side of the fixing block 4 is threadedly connected with a fixing bolt 16, and one side of the fixing bolt 16 is connected with a clamping block 18 through a bearing. Compression springs 17 are fixed on both sides of the clamping block 18. By rotating the fixing bolt 16, the fixing bolt 16 drives the clamping block 18 to clamp the drill body 2 under the action of the compression spring 17, which is convenient for disassembly and assembly.

[0031] The compression spring 17 is fixedly connected to the fixed block 4, and the structure of the clamping block 18 is an arc-shaped structure. A rubber pad is fixed to one side of the clamping block 18. The arc-shaped clamping block 18 is convenient for clamping the drill body 2. The setting of the rubber pad prevents excessive friction of the drill body 2 from occurring due to the high-speed rotation of the drill bit 1 when the tool is working, thereby reducing the service life of the tool. Embodiment 3

[0032] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0033] A coolant pipe 13 runs through the inside of the cutter bar 3, a damping block 14 is fixed to the outside of the coolant pipe 13, and damping springs 12 are fixed to both sides of the damping block 14. By providing the damping cutter bar 3, when the cutter bar 3 is acted upon by a force, the damping spring 12 inside the cutter bar 3 will undergo elastic deformation to form elastic potential energy. The existence of the damping block 14 can convert part of the elastic potential energy into heat energy, thereby reducing the amplitude of vibration of the drill bit 1.

[0034] One side of the coolant pipe 13 is connected to a liquid inlet 19, seven adjustment grooves are provided on the surface of the adjusting rod 5, and a scale is provided on one side of the seven adjustment grooves. An adjustment block 6 is fixed to one side of the top of the tool rod 3, and a return spring 15 is fixed to one side of the adjustment block 6. The setting of the adjusting rod 5 facilitates the control of the drilling depth and improves the working efficiency of the device.

[0035] A snap-fit ​​structure is formed between the adjusting block 6 and the adjusting slot. A connecting block 7 is fixed to the top of the adjusting rod 5. A positioning block 8 is fixed to the top of the connecting block 7. The positioning block 8 is arranged to fix the position of the drill bit 1 to avoid deviation during drilling and affect the work.

[0036] Working principle: First, rotate the drill bit 1 so that the threaded block 11 at the top of the drill bit 1 is threadedly connected with the drill body 2, and then press the clamping block 10 to compress the reset spring 15 through pressure, so that the clamping block 10 shrinks into the clamping groove until it reaches the clamping groove opened on the surface of the drill body 2 for clamping, thereby enhancing the stability of the connection between the drill bit 1 and the drill body 2. Then rotate the fixing bolt 16 on the fixing block 4, and the fixing bolt 16 drives the clamping block 18 to clamp the drill body 2 under the action of the compression spring 17, which is convenient for disassembly and assembly. Then, according to the depth of the hole, the adjustment block 6 is pressed to engage the adjustment block 6 with the adjustment groove on the surface of the tool bar 3, and the adjustment rod 5 is adjusted to a suitable position. The motor port clamps the connection block 7 at the top of the adjustment rod 5. The top of the connection block 7 is fixed with a positioning block 8. The positioning block 8 is arranged to fix the position of the drill bit 1 to avoid deviation during drilling and affect the work. Finally, by setting a damping tool bar 3, when the tool bar 3 is subjected to force, the shock absorbing spring 12 inside the tool bar 3 will undergo elastic deformation to form elastic potential energy. The existence of the damping block 14 can convert part of the elastic potential energy into heat energy, thereby reducing the amplitude of the vibration of the drill bit 1. When the device is used, the cleaning liquid is transported to the liquid inlet 19, and the cleaning liquid is transported to the cooling hole 9 on the surface of the drill body 2 through the coolant pipe 13 to spray, clean the drill body 2, and avoid infection of the drill body 2.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An orthopedic drill bit with an anti-infection structure, comprising a drill bit (1), characterized in that: A threaded block (11) is fixed to the top end of the drill bit (1), and a clamping block (10) is provided on the surface of the threaded block (11); A drill body (2) is arranged on the outside of the threaded block (11), a coolant tank is provided inside the drill body (2), a chip removal groove is provided on the surface of the drill body (2), and a cooling hole (9) is provided on the outside of the chip removal groove; A knife bar (3) is arranged on the outside of the drill body (2), an adjusting rod (5) is arranged on the outside of the knife bar (3), the drill body (2) is threadedly connected to the drill body (2) via a threaded block (11), and a clamping groove is provided on the outside of the drill body (2).

2. The orthopedic drill bit with an anti-infection structure according to claim 1, characterized in that: A clamping structure is formed between the clamping block (10) and the clamping groove, and a fixing block (4) is fixed to the surface of the knife rod (3).

3. The orthopedic drill bit with an anti-infection structure according to claim 2, characterized in that: One side of the fixing block (4) is threadedly connected to a fixing bolt (16), one side of the fixing bolt (16) is connected to a clamping block (18) via a bearing, and compression springs (17) are fixed to both sides of the clamping block (18).

4. The orthopedic drill bit with an anti-infection structure according to claim 3, characterized in that: The compression spring (17) and the fixed block (4) are fixedly connected, the structure of the clamping block (18) is an arc-shaped structure, and a rubber pad is fixed on one side of the clamping block (18).

5. The orthopedic drill bit with an anti-infection structure according to claim 1, characterized in that: A coolant pipe (13) runs through the interior of the knife rod (3), a damping block (14) is fixed to the outside of the coolant pipe (13), and shock-absorbing springs (12) are fixed on both sides of the damping block (14).

6. The orthopedic drill bit with an anti-infection structure according to claim 5, characterized in that: One side of the coolant pipe (13) is connected to a liquid inlet (19), the surface of the adjustment rod (5) is provided with seven adjustment grooves, one side of the seven adjustment grooves is provided with a scale, an adjustment block (6) is fixed to one side of the top end of the knife rod (3), and a return spring (15) is fixed to one side of the adjustment block (6).

7. The orthopedic drill bit with an anti-infection structure according to claim 6, characterized in that: A snap-fit ​​structure is formed between the adjustment block (6) and the adjustment slot; a connecting block (7) is fixed to the top end of the adjustment rod (5); and a positioning block (8) is fixed to the top end of the connecting block (7).

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