Ultrasonic orthopedic cutter

Abstract

The utility model relates to the technical field of medical instruments, and provides an ultrasonic orthopedic cutter which comprises a cutter bar, a cutter head and a deslagging structure. The tool bit is arranged at the front end of the tool bar and comprises a plurality of grinding grooves arranged at intervals, and the grinding grooves extend from the front end of the tool bit to the rear end of the tool bit. The deslagging structure is arranged on the tool bit and comprises a deslagging inlet, a deslagging outlet and a deslagging channel communicated with the deslagging inlet and the deslagging outlet, the deslagging inlet and the deslagging outlet are oppositely arranged, and the deslagging inlet is arranged close to the front end of the tool bit, or the deslagging inlet is arranged on the surface between the front end and the rear end of the tool bit. And the deslagging efficiency is improved by the deslagging structure, so that the grinding efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an ultrasonic orthopedic tool. Background Art

[0002] With the development of medical technology, orthopedic surgeries show a diversified trend. Correspondingly, during the implementation of surgeries, different-shaped scalpel heads need to be used to perform operations such as cutting and grinding on the affected area according to different orthopedic conditions. To improve the grinding efficiency and reduce the stress on the tool head, Chinese Patent Application No. CN201920627096.2, with the utility model name of Design of Spherical Bone Grinding Tool Head for Ultrasonic Surgical System, discloses a spherical tool head. As Figure 1 shown, the tool head is a solid sphere. Such tools will generate a large amount of bone chips during the bone grinding process. Although the bone grinding teeth provided on the outer surface can be used for bone chip removal, the removal efficiency is low, and the accumulation of bone chips at the tool head affects the grinding efficiency. Summary of the Invention

[0003] In view of this, the present invention provides an ultrasonic orthopedic tool to solve the problems of low slag discharge efficiency and low grinding efficiency of existing tools during bone grinding.

[0004] The present invention provides an ultrasonic orthopedic tool, comprising:

[0005] A tool shank;

[0006] A tool head, arranged at the front end of the tool shank, including a plurality of grinding grooves arranged at intervals, and the grinding grooves extend from the front end to the rear end of the tool head;

[0007] A slag discharge structure, arranged on the tool head, including a slag discharge inlet, a slag discharge outlet, and a slag discharge channel connecting the slag discharge inlet and the outlet. The slag discharge inlet and the slag discharge outlet are oppositely arranged. Among them, the slag discharge inlet is arranged near the front end of the tool head, or the slag discharge inlet is arranged on the surface between the front end and the rear end of the tool head.

[0008] Optionally, the slag discharge inlet is a first inlet opened at the front end of the tool head, the slag discharge outlet is a first outlet opened on the side wall surface near the rear end of the tool head, and the slag discharge channel includes a connected first channel and a second channel. One end of the first channel is connected to the first inlet and extends along the axial direction of the tool head, and the second channel is connected to the other end of the first channel and extends obliquely relative to the axial direction of the tool head to be connected to the first outlet.

[0009] Optionally, a plurality of the first outlets are arranged at intervals near the side wall surface of the rear end of the tool head, and a plurality of second channels are arranged at intervals and one end of each is connected to the other end of the first channel, and each extends obliquely relative to the axial direction of the tool head to be connected to the corresponding first outlet.

[0010] Optionally, both the first channel and the second channel are cylindrical, and the diameter of the first channel is greater than or equal to the diameter of the second channel.

[0011] Optionally, the slag discharge inlet is a second inlet opened on the side wall surface near the front end of the cutter head, the slag discharge outlet is a second outlet opened on the side wall surface near the rear end of the cutter head, and the slag discharge channel is a third channel connecting the second inlet and the second outlet.

[0012] Optionally, multiple groups of the second inlets and the second outlets are arranged at intervals on the side wall of the cutter head, and multiple third channels respectively connect the corresponding second inlets and the second outlets.

[0013] Optionally, the slag discharge inlet is a third inlet opened on the side wall surface between the front end and the rear end of the cutter head, the slag discharge outlet is a third outlet opened on the side wall of the surface opposite to the third inlet, the slag discharge channel is a fourth channel extending in a direction perpendicular to the axial direction of the cutter head, and the fourth channel respectively connects the third inlet and the third outlet.

[0014] Optionally, multiple groups of the third inlets, the third outlets and the fourth channels are arranged at intervals along the circumferential direction of the cutter head, and the centers of multiple fourth channels intersect and penetrate.

[0015] Optionally, multiple grinding grooves are straight grooves or curved arc grooves.

[0016] Optionally, a cutter tail is provided at the rear end of the cutter bar, the surface of the cutter tail is a threaded structure, a clamping portion is provided between the cutter tail and the cutter bar, and the outer contour shape of the clamping portion is hexagonal.

[0017] Beneficial effects:

[0018] The ultrasonic orthopedic cutter provided by the present invention includes: a cutter bar, a cutter head and a slag discharge structure. The cutter head is arranged at the front end of the cutter bar and includes multiple grinding grooves arranged at intervals, and the grinding grooves extend from the front end to the rear end of the cutter head. The slag discharge structure is arranged on the cutter head and includes a slag discharge inlet, a slag discharge outlet and a slag discharge channel connecting the slag discharge inlet and the outlet. The slag discharge inlet and the slag discharge outlet are arranged oppositely, wherein the slag discharge inlet is arranged near the front end of the cutter head, or the slag discharge inlet is arranged on the surface between the front end and the rear end of the cutter head.

[0019] The rear end of the tool shank can be mounted on the ultrasonic handle. The grinding grooves on the tool tip are used for grinding the bone surface. Specifically, ridges are formed between adjacent grinding grooves. When the outer surface edge of the ridge moves in high frequency along with the tool shank and contacts the bone surface, the ridge can grind the bone surface. The bone chips ground off can directly enter the slag discharge inlet without entering the grinding grooves, and move along the slag discharge channel to be discharged from the slag discharge outlet. Since the slag discharge inlet and the slag discharge outlet are oppositely arranged, most of the bone chips on the bone surface can be removed to a position far away from the bone surface, avoiding a large amount of bone chips from accumulating on the bone surface or adhering to the grinding grooves, improving the slag discharge efficiency, and thus improving the grinding efficiency. During the grinding operation, the tool tip has various usage modes and grinding angles, and the slag discharge inlet can be flexibly set according to the usage mode and grinding angle of the tool tip, so that various tool tips can be made according to the slag discharge structures at different positions. The slag discharge inlet can be arranged at the front end of the tool tip or on the surface between the front end and the rear end of the tool tip, as long as it can ensure that the bone chips at the grinding position are collected and discharged. Compared with the single slag discharge mode in the prior art, the slag discharge structure of the present application improves the flexibility and adaptability of slag discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 Structural schematic diagram of the ultrasonic orthopedic tool in the first embodiment of the present application;

[0022] Figure 2 Structural schematic diagram of the tool tip in the first embodiment of the present application;

[0023] Figure 3 Cross-sectional structural schematic diagram of the ultrasonic orthopedic tool in the first embodiment of the present application;

[0024] Figure 4 Cross-sectional structural schematic diagram of the tool tip in the first embodiment of the present application;

[0025] Figure 5 Structural schematic diagram of the tool tail in the first embodiment of the present application;

[0026] Figure 6 Cross-sectional structural schematic diagram of the tool tail in the first embodiment of the present application.

[0027] Figure 7 Another angle structural schematic diagram of the tool tail in the first embodiment of the present application;

[0028] Figure 8Schematic structural diagram of the cutter head according to the second embodiment of the present application;

[0029] Figure 9 Schematic cross-sectional structure diagram of the ultrasonic orthopedic tool according to the second embodiment of the present application;

[0030] Figure 10 Schematic cross-sectional structure diagram of the cutter head according to the second embodiment of the present application;

[0031] Figure 11 Schematic axonometric angle structure diagram of the cutter head according to the second embodiment of the present application;

[0032] Figure 12 Another angle structure diagram of the cutter head according to the second embodiment of the present application;

[0033] Figure 13 Schematic structural diagram of the cutter head according to the third embodiment of the present application;

[0034] Figure 14 Schematic cross-sectional structure diagram of the ultrasonic orthopedic tool according to the third embodiment of the present application;

[0035] Figure 15 Schematic cross-sectional structure diagram of the cutter head according to the third embodiment of the present application;

[0036] Figure 16 Schematic axonometric angle structure diagram of the cutter head according to the third embodiment of the present application;

[0037] Figure 17 Another angle structure diagram of the cutter head according to the third embodiment of the present application;

[0038] Figure 18 Schematic structural diagram of the cutter head according to the fourth embodiment of the present application;

[0039] Figure 19 Schematic axonometric angle structure diagram of the cutter head according to the fourth embodiment of the present application;

[0040] Figure 20 Another angle structure diagram of the cutter head according to the fourth embodiment of the present application;

[0041] Explanation of reference numerals:

[0042] 1. Tool shank; 11. Reinforcing part; 12. Reducing section; 2. Cutter head; 21. Grinding groove; 311. First inlet; 312. First outlet; 313. First channel; 314. Second channel; 321. Second inlet; 322. Second outlet; 323. Third channel; 331. Third inlet; 332. Third outlet; 333. Fourth channel; 41. Tool tail; 42. Clamping part. Detailed implementation manners

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts fall within the protection scope of the present invention.

[0044] Embodiment 1

[0045] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, this embodiment provides an ultrasonic orthopedic tool, including: a tool shank 1, a tool head 2, and a slag removal structure.

[0046] The tool head 2 is arranged at the front end of the tool shank 1 and includes a plurality of grinding grooves 21 arranged at intervals. The grinding grooves 21 extend from the front end to the rear end of the tool head. As Figure 1 shown in the direction, the left arrow indicates the rear end, and the right arrow indicates the front end. The whole tool, the tool shank 1, the tool head 2, and the slag removal structure are all described according to this defined direction.

[0047] The rear end of the tool shank 1 can be installed on an ultrasonic handle (not shown in the figure). The grinding grooves 21 of the tool head 2 are used for grinding the bone surface. The ultrasonic handle drives the tool shank 1 to move, and then drives the tool head 2 to move. Specifically, as Figure 2 shown, ridges 22 are formed between adjacent grinding grooves 21. When the outer surface edge of the ridge 22 moves at a high frequency with the tool shank and contacts the bone surface, the ridge 22 can grind the bone surface.

[0048] The slag removal structure is arranged on the tool head 2 and includes a slag removal inlet, a slag removal outlet, and a slag removal channel connecting the slag removal inlet and the outlet. The slag removal inlet and the slag removal outlet are arranged opposite to each other. The slag removal inlet is arranged on the side close to the bone surface when the tool head 2 works, and the slag removal outlet is arranged on the side away from the bone surface when the tool head 2 works, so that bone slag can be discharged from the bone surface to a position away from the bone surface. Among them, the slag removal inlet is arranged close to the front end of the tool head 2. In some usage modes, the front end of the tool head 2 is mainly used for grinding. Then the slag removal outlet is correspondingly arranged at the rear end of the tool head 2. In other usage modes, the side wall of the tool head 2 is mainly used for grinding. Then the slag removal inlet is arranged on the surface between the front end and the rear end of the tool head 2. The arrangement positions of the slag removal inlet and the slag removal outlet can be set according to the grinding mode, as long as the slag removal inlet is close to the bone surface and the slag removal outlet is away from the bone surface.

[0049] During the operation of the cutter head 2, the bone debris ground by the grinding groove 21 can directly enter the slag discharge inlet without entering the grinding groove. The bone debris moves along the slag discharge channel and is discharged from the slag discharge outlet. Since the slag discharge inlet and the slag discharge outlet are oppositely arranged, most of the bone debris on the bone surface can be removed to a position far from the bone surface, avoiding a large amount of bone debris from accumulating on the bone surface or adhering to the grinding groove 21, improving the slag discharge efficiency, and thus improving the grinding efficiency.

[0050] In addition, during the grinding operation, the cutter head 2 has various usage methods and grinding angles. The slag discharge inlet can be flexibly set according to the usage method and grinding angle of the cutter head 2, so that various cutter heads 2 can be made according to the slag discharge structures at different positions. The slag discharge inlet can be set at the front end of the cutter head 2 or on the surface between the front end and the rear end of the cutter head 2, as long as it can ensure that the bone debris at the grinding position is collected and discharged. Compared with the single slag discharge method in the prior art, the slag discharge structure of the present application improves the flexibility and adaptability of slag discharge.

[0051] As Figure 3 and Figure 4 shown, in this embodiment, the slag discharge inlet is the first inlet 311 opened at the front end of the cutter head 2, the slag discharge outlet is the first outlet 312 opened on the side wall surface near the rear end of the cutter head 2, and the slag discharge channel includes a connected first channel 313 and a second channel 314. One end of the first channel 313 is connected to the first inlet 311 and extends along the axial direction of the cutter head 2, and the second channel 314 is connected to the other end of the first channel 313 and extends obliquely relative to the axis direction of the cutter head 2 to be connected to the first outlet 312.

[0052] Specifically, since the rear end of the cutter head 2 is connected to the tool shank 1, the first outlet 312 can be set on the side wall between the surfaces of the cutter head 2 and the tool shank 1 to ensure the connection strength between the cutter head 2 and the tool shank 1. The first inlet 311 is opened on the central axis of the cutter head 2. When grinding the bone surface using the grinding groove 21 near the first inlet 311, the bone debris can directly enter the first inlet 311, and then move along the first channel 313 and the second channel 314 to be discharged from the first outlet 312, without a large amount of bone debris accumulating on the bone surface, ensuring the grinding efficiency of the grinding groove 21. The extending direction of the first channel 313 is the same as the axial direction of the cutter head 2, and the second channel 314 extends obliquely and connects the first channel 313 and the first outlet 312. The included angle between the second channel 314 and the first channel 313 can be an obtuse angle to reduce the resistance when the bone debris moves, and the bone debris can move smoothly along the first channel 313 and the second channel 314, ensuring the discharge efficiency of the bone debris.

[0053] As Figure 3 and Figure 4As shown, in this embodiment, a plurality of first outlets 312 are arranged at intervals close to the surface of the rear side wall of the cutter head 2. A plurality of second channels 314 are arranged at intervals and one end of each second channel communicates with the other end of the first channel 313, and each second channel extends obliquely relative to the axial direction of the cutter head 2 to communicate with the corresponding first outlet 312. The plurality of first outlets 312 can increase the discharge efficiency of bone chips. The plurality of first outlets 312 and the plurality of second channels 314 are evenly arranged at intervals at the rear end of the cutter head 2 to ensure the mechanical strength of the cutter head 2.

[0054] As Figure 3 and Figure 4 shown, in this embodiment, both the first channel 313 and the second channel 314 are cylindrical. The diameter of the first channel 313 is greater than or equal to the diameter of the second channel 314. Increasing the number of the second channels 314 and reducing the diameter of the second channel 314 can ensure the strength at the connection between the cutter head 2 and the cutter bar 1.

[0055] As Figure 5 , Figure 6 and Figure 7 shown, a tool tail 41 is provided at the rear end of the cutter bar 1. The surface of the tool tail 41 has a threaded structure for connecting with an ultrasonic handle. There is a clamping portion 42 between the tool tail 41 and the cutter bar 1. The outer contour shape of the clamping portion 42 is hexagonal, and the clamping portion 42 facilitates the transmission cooperation between the cutter bar 1 and the ultrasonic handle.

[0056] As Figure 5 , Figure 6 and Figure 7 shown, a reinforcing portion 11 is provided between the cutter bar 1 and the clamping portion 42. The cutter bar 1 and the reinforcing portion 11 are of a cylindrical structure. The diameter of the reinforcing portion 11 is greater than or equal to the diameter of the cutter bar 1, and the reinforcing portion 11 ensures the structural strength of the cutter bar 1. There is a stepped diameter section 12 between the reinforcing portion 11 and the cutter bar 1. The arrangement of the stepped diameter section 12 and the reinforcing portion 11 can also increase the diameter of the cutter bar 1, thereby increasing the wave impedance, reducing the influence of the vibration of the contact between the cutter head 2 and the bone surface on the cutter bar 1 and the reinforcing portion 11, and improving the grinding accuracy of the cutter head 2.

[0057] As Figure 2 shown, in this embodiment, the grinding groove 21 is a straight groove that extends from the front end to the rear end of the cutter head 2, and the projection of the straight groove onto the central axis of the cutter head 2 coincides with the central axis of the cutter head 2.

[0058] Embodiment 2

[0059] The cutter bar 1, the cutter head 2, and the tool tail 41 in this embodiment are exactly the same as those in Embodiment 1. The difference between this embodiment and Embodiment 1 lies in the slag discharge structure. The following will be described in conjunction with Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12Introduce the slag discharge structure of this embodiment in detail.

[0060] As Figure 8 , Figure 9 and Figure 10 shown, the slag discharge inlet is the second inlet 321 opened on the side wall surface near the front end of the cutter head 2, the slag discharge outlet is the second outlet 322 opened on the side wall surface near the rear end of the cutter head, and the slag discharge channel is the third channel 323 connecting the second inlet 321 and the second outlet 322. There is a certain distance between the second inlet 321 and the central axis of the cutter head 2, so that there are grinding grooves 321 on both the front and rear sides of the second inlet 321. When the bone surface is ground in the grinding grooves 321, bone slag can directly enter the second inlet 321, improving the slag discharge efficiency.

[0061] The second outlet 322 is arranged on the surface between the tool shank 1 and the cutter head 2, and the third channel 323 extends obliquely and connects the second inlet 321 and the second outlet 322 to ensure the structural strength of the cutter head 2.

[0062] As Figure 8 , Figure 9 and Figure 10 shown, multiple groups of second inlets 321 and second outlets 322 are arranged at intervals on the side wall of the cutter head 2, and multiple third channels 323 respectively connect the corresponding second inlets 321 and second outlets 322. Multiple groups of second inlets 321 and second outlets 322 can further improve the slag discharge efficiency.

[0063] As Figure 11 and Figure 12 shown, the second inlet 321 is arranged between two adjacent grinding grooves 21, and the bone slag ground by two adjacent grinding grooves 21 can be discharged through one second inlet 321. For example Figure 12 shown, there are eight grinding grooves 21 and four second inlets 321, with one second inlet 321 between every two grinding grooves 21. Thus, the number of second inlets 321, second outlets 322 and third channels 323 can be reduced while ensuring the slag discharge effect, and the structural strength of the cutter head 2 can be ensured.

[0064] Embodiment III

[0065] The tool shank 1, cutter head 2 and tool tail 41 of this embodiment are exactly the same as those of Embodiment I. The difference between this embodiment and Embodiment I lies in the slag discharge structure. The following will combine Figure 13 , Figure 14 , Figure 15 , Figure 16 and Figure 17 Introduce the slag discharge structure of this embodiment in detail.

[0066] As Figure 13 , Figure 14 andFigure 15 As shown, in this embodiment, the slag discharge inlet is the third inlet 331 opened on the side wall surface between the front end and the rear end of the cutter head 2, and the slag discharge outlet is the third outlet 332 opened on the side wall of the surface opposite to the third inlet 331. The third inlet 331 is opened at the central position of the side wall of the cutter head 2. Such a setting can better conform to the usage mode of side cutting with the cutter head 2, and bone slag can directly enter the third inlet 331, improving the slag discharge effect. The slag discharge channel is the fourth channel 333 extending along the direction perpendicular to the axial direction of the cutter head. The fourth channel 333 communicates with the third inlet 331 and the third outlet 332 respectively, and bone slag can be discharged from the third outlet 332 along the fourth channel 333.

[0067] As Figure 15 , Figure 16 and Figure 17 shown, multiple groups of the third inlet 331, the third outlet 332 and the fourth channel 333 are arranged at intervals along the circumferential direction of the cutter head 2, and the centers of multiple fourth channels 333 intersect and penetrate. For example, two groups of the third inlet 331, the third outlet 332 and the fourth channel 333 are arranged at intervals along the circumferential direction of the cutter head 2, and the two fourth channels 333 are perpendicular to each other and penetrate at the central position.

[0068] Embodiment Four

[0069] The tool shank 1, the cutter head 2, the tool tail 41 and the slag discharge structure in this embodiment are exactly the same as those in Embodiment One. The difference between this embodiment and Embodiment One lies in the structure of the grinding groove 21. The following will combine Figure 18 , Figure 19 and Figure 20 to introduce the slag discharge structure of this embodiment in detail.

[0070] As Figure 18 , Figure 19 and Figure 20 shown, in this embodiment, multiple grinding grooves 21 are curved arc grooves. For example, eight grinding grooves 21 are evenly arranged circumferentially on the outer surface of the cutter head 2, which is suitable for the usage mode of turning. The slag discharge structure in this embodiment can use any one of Embodiment One, Embodiment Two and Embodiment Three, and can achieve the same effect, so it will not be repeated here.

[0071] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An ultrasonic orthopedic tool, characterized in that, Comprising: A tool shank (1); A tool tip (2), arranged at the front end of the tool shank (1), including a plurality of grinding grooves (21) arranged at intervals, and the grinding grooves (21) extend from the front end to the rear end of the tool tip (2); A chip removal structure, arranged on the tool tip (2), including a chip removal inlet, a chip removal outlet and a chip removal channel connecting the chip removal inlet and the outlet, the chip removal inlet and the chip removal outlet are arranged opposite to each other, wherein the chip removal inlet is arranged close to the front end of the tool tip (2), or the chip removal inlet is arranged on the surface between the front end and the rear end of the tool tip (2).

2. The ultrasonic orthopedic tool according to claim 1, wherein The chip removal inlet is a first inlet (311) opened at the front end of the tool tip (2), the chip removal outlet is a first outlet (312) opened on the side wall surface close to the rear end of the tool tip (2), the chip removal channel includes a connected first channel (313) and a second channel (314), one end of the first channel (313) is connected to the first inlet (311) and extends along the axial direction of the tool tip (2), and the second channel (314) is connected to the other end of the first channel (313) and extends obliquely relative to the axial direction of the tool tip (2) to be connected to the first outlet (312).

3. The ultrasonic orthopedic tool according to claim 2, characterized in that A plurality of the first outlets (312) are arranged at intervals close to the side wall surface of the rear end of the tool tip (2), and a plurality of second channels (314) are arranged at intervals and one end of each is connected to the other end of the first channel (313), and each extends obliquely relative to the axial direction of the tool tip (2) to be connected to the corresponding first outlet (312).

4. The ultrasonic orthopedic tool according to claim 2, characterized in that, Both the first channel (313) and the second channel (314) are cylindrical, and the diameter of the first channel (313) is greater than or equal to the diameter of the second channel (314).

5. The ultrasonic orthopedic tool according to claim 1, characterized in that, The chip removal inlet is a second inlet (321) opened on the side wall surface close to the front end of the tool tip (2), the chip removal outlet is a second outlet (322) opened on the side wall surface close to the rear end of the tool tip (2), and the chip removal channel is a third channel (323) connecting the second inlet (321) and the second outlet (322).

6. The ultrasonic orthopedic tool according to claim 5, wherein, Multiple groups of the second inlets (321) and second outlets (322) are arranged at intervals on the side wall of the tool tip (2), and a plurality of the third channels (323) respectively connect the corresponding second inlets (321) and second outlets (322).

7. The ultrasonic orthopedic tool according to claim 1, characterized in that, The chip removal inlet is a third inlet (331) opened on the side wall surface between the front end and the rear end of the tool tip (2), the chip removal outlet is a third outlet (332) opened on the side wall of the surface opposite to the third inlet (331), and the chip removal channel is a fourth channel (333) extending along the direction perpendicular to the axial direction of the tool tip (2), and the fourth channel (333) respectively connects the third inlet (331) and the third outlet (332).

8. The ultrasonic orthopedic tool according to claim 7, characterized in that, Multiple groups of the third inlets (331), third outlets (332) and fourth channels (333) are arranged at intervals along the circumferential direction of the tool tip (2), and the centers of a plurality of the fourth channels (333) intersect and penetrate.

9. The ultrasonic orthopedic tool according to any one of claims 1 to 8, characterized in that, A plurality of the grinding grooves (21) are straight grooves or curved arc grooves.

10. The ultrasonic orthopedic tool according to any one of claims 1 to 8, characterized in that, The rear end of the tool shank (1) is provided with a tool tail (41), the surface of the tool tail (41) is a threaded structure, and there is a clamping portion (42) between the tool tail (41) and the tool shank (1). The outer contour shape of the clamping portion (42) is hexagonal.

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