CN220735466U - Ultrasonic bone knife head, medical ultrasonic knife system and robot auxiliary ultrasonic knife system - Google Patents

Abstract

The application provides an ultrasonic osteotome head, a medical ultrasonic scalpel system and a robot-assisted ultrasonic scalpel system, and belongs to the technical field of medical equipment. The ultrasonic bone knife head comprises a cutting head and a knife bar. The cutting head has opposite first and second ends, and a cutting face. The end of the cutter bar is connected with the first end of the cutting head, the included angle alpha 1 between the cutter bar and the cutting head is more than or equal to 100 degrees and less than or equal to 150 degrees, and the cutter bar is deviated towards one side far away from the cutting surface. The cutting head and the cutter bar of the medical ultrasonic knife are in the shape of a hook, so that the cutting head can bypass the spinal cord when the medical ultrasonic knife is used, the cutting surface of the cutting head is contacted with bone tissue, and the bone tissue is cut. Since only the cutting head portion bypasses the spinal cord, a smaller surgical incision may be made. The included angle alpha 1 between the cutter bar and the cutting head is in the range, so that the cutting head can bypass the spinal cord, the cutter bar can not block an operator, a certain visual field is provided for the operator, and the operation is convenient.

Description

Ultrasonic bone knife head, medical ultrasonic knife system and robot auxiliary ultrasonic knife system

Technical Field

The application relates to the technical field of medical equipment, in particular to an ultrasonic bone knife head, a medical ultrasonic knife system and a robot auxiliary ultrasonic knife system.

Background

With the development of ultrasonic technology and the combination of ultrasonic technology and modern medicine, medical ultrasonic blades are also gradually applied to surgical operations, for example, the medical ultrasonic blades are used for cutting bone tissues pressing spinal cord so as to reduce the pressing of spinal cord.

In the related art, when the bone tissue compressing the spinal cord is cut, the bone tissue needs to be cut by bypassing the spinal cord by using the tool bit of the medical ultrasonic knife, so that a larger operation space is needed, a larger operation incision is easy to form, and the use is inconvenient.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the background art. It is, therefore, an object of the present application to provide an ultrasonic osteotome head, a medical ultrasonic blade system, and a robot-assisted ultrasonic blade system to improve the problem of inconvenient use of the medical ultrasonic blade in the related art.

Embodiments of the first aspect of the present application provide an ultrasonic osteotome head comprising: a cutting head having opposed first and second ends, and a cutting surface between the first and second ends; the end of the cutter bar is connected with the first end of the cutting head, the included angle alpha 1 between the cutter bar and the cutting head is larger than or equal to 100 degrees and smaller than or equal to 150 degrees, and the cutter bar is deviated towards one side far away from the cutting surface.

In some embodiments, the width D1 of the cut surface is greater than or equal to 0.2 millimeters and less than or equal to 1.0 millimeters.

In some embodiments, the cutting surface is serrated; or the cutting surface is a file surface; or the cutting surface is a sharpening.

In some embodiments, the cutting head further has a blade back surface opposite the cutting surface, the cutting surface having a width D1 that is less than a width D2 of the blade back surface.

In some embodiments, the knife back is an arcuate surface.

In some embodiments, the cutting head further has two opposing sides, each located between the first end and the second end, and each connected to the cutting face; and an included angle alpha 2 of the two side surfaces is more than or equal to 2 degrees and less than or equal to 8 degrees.

In some embodiments, the length L1 of the side surface is greater than or equal to 4 millimeters and less than or equal to 15 millimeters along the direction of the arrangement of the first end and the second end.

In some embodiments, the cutter bar has a water injection passage with a water outlet end that is proximate the cutting head.

In some embodiments, the water outlet end is located on a side of the cutter bar; or the water outlet end is positioned on the end surface of the cutter bar, which is connected with the cutting head, the first end of the cutting head is provided with a first water outlet groove, and the water outlet end is communicated with the first water outlet groove; or the cutter bar is provided with a second water outlet groove, the end face of the second water outlet groove penetrating through the cutter bar and connected with the cutting head is communicated with the second water outlet groove.

In some embodiments, the end face of the second end is serrated.

According to an embodiment of a second aspect of the present application, there is provided a medical ultrasonic blade system, wherein the medical ultrasonic blade system includes a vibration source and the ultrasonic bone knife head described in the above embodiment; the vibration source is connected with the cutter bar of the ultrasonic bone knife head and is used for generating vibration.

According to an embodiment of a third aspect of the present application, there is provided a robot-assisted ultrasonic blade system, characterized in that the robot-assisted ultrasonic blade system includes a robot-assisted surgical device and the medical ultrasonic blade system described in the above embodiments; the robot assisted surgery device is connected with an ultrasonic bone knife head in the medical ultrasonic knife system so as to control the movement of the ultrasonic bone knife head.

The ultrasonic osteotome tool bit that this application embodiment provided is because the cutter arbor is towards keeping away from the one side skew of cutting plane, then makes ultrasonic osteotome tool bit's cutting head and cutter arbor present the shape of crotch, when using the ultrasonic osteotome tool bit that this application embodiment improves like this, can bypass the spinal cord with the cutting head for the cutting plane and the bone tissue contact of cutting head cut bone tissue. Since only the cutting head portion bypasses the spinal cord, a smaller surgical incision may be made. The included angle alpha 1 between the cutter bar and the cutting head is more than or equal to 100 degrees and less than or equal to 150 degrees, so that the cutting head can bypass the spinal cord, and meanwhile, the cutter bar can not block a certain view of an operator, and the operation is convenient.

Drawings

In the drawings of which there are shown, unless otherwise specified, the same reference numbers will be used throughout the drawings to refer to the same or like parts or elements. The figures are not necessarily drawn to scale. It is appreciated that these drawings depict only some embodiments according to the disclosure and are not therefore to be considered limiting of its scope.

Fig. 1 shows a schematic structural diagram of an ultrasonic osteotome head according to an embodiment of the present application;

FIG. 2 shows a schematic view of a cutting head and tool bar configuration provided in an embodiment of the present application;

FIG. 3 illustrates a front view of a cutting head and a tool holder provided in an embodiment of the present application;

FIG. 4 shows a left side view of the cutting head and tool shank shown in body 3;

FIG. 5 illustrates an oblique view of a cutting head and a tool bar provided in an embodiment of the present application;

FIG. 6 shows a schematic structural view of another ultrasonic osteotome head provided in an embodiment of the present application;

FIG. 7 illustrates a schematic view of another cutting head and arbor configuration provided in accordance with embodiments of the present application;

FIG. 8 illustrates a front view of another cutting head and arbor provided by embodiments of the present application;

FIG. 9 shows a schematic structural view of another ultrasonic osteotome head provided in an embodiment of the present application;

FIG. 10 illustrates a schematic view of another cutting head and arbor configuration provided in accordance with embodiments of the present application;

FIG. 11 illustrates a front view of another cutting head and arbor provided by embodiments of the present application;

FIG. 12 shows a schematic structural view of another ultrasonic osteotome head provided in an embodiment of the present application;

FIG. 13 illustrates a schematic view of another cutting head and arbor configuration provided in accordance with embodiments of the present application;

FIG. 14 illustrates a front view of another cutting head and arbor provided by embodiments of the present application;

FIG. 15 shows a schematic structural view of another ultrasonic osteotome head provided in an embodiment of the present application;

FIG. 16 illustrates a schematic view of another cutting head and arbor configuration provided in accordance with embodiments of the present application;

FIG. 17 illustrates a front view of another cutting head and arbor provided by embodiments of the present application;

FIG. 18 shows a schematic structural view of another ultrasonic osteotome head provided in an embodiment of the present application;

FIG. 19 shows a schematic view of another cutting head and arbor configuration provided in accordance with embodiments of the present application;

FIG. 20 illustrates a front view of another cutting head and arbor provided by embodiments of the present application;

reference numerals illustrate:

10. a cutting head; 11. a first end; 12. a second end; 13. cutting a surface; 14. the back of the knife; 15. a side surface; 16. a first water outlet tank; 20. a cutter bar; 21. a water injection channel; 22. a water outlet end; 23. a second water outlet tank; 30. a blade body; 31. and (5) external threads.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

The embodiment of the application provides an ultrasonic bone knife head, and fig. 1 shows a schematic structural diagram of the ultrasonic bone knife head. See in the context of figure 1 of the drawings, the ultrasonic osteotome head includes a cutting head 10 and a blade bar 20. Fig. 2 shows a schematic view of a cutting head and a cutter bar according to an embodiment of the present application. Fig. 3 illustrates a front view of a cutting head and a tool bar provided in an embodiment of the present application. Referring to fig. 2 and 3, the cutting head 10 has opposed first and second ends 11, 12, and a cutting surface 13 between the first and second ends 11, 12. The end of the cutter bar 20 is connected to the first end 11 of the cutting head 10, the angle α1 between the cutter bar 20 and the cutting head 10 is greater than or equal to 100 degrees (°) and less than or equal to 150 degrees, and the cutter bar 20 is offset toward the side remote from the cutting face 13.

In the embodiment of the application, since the cutter bar 20 is offset towards the side far away from the cutting surface 13, the cutting head 10 and the cutter bar 20 of the ultrasonic bone knife head are in the shape of a hook, so that when the ultrasonic bone knife head improved by the embodiment of the application is used, the cutting head 10 can bypass the spinal cord, the cutting surface 13 of the cutting head 10 is in contact with bone tissue, and the bone tissue is cut. Since only the cutting head 10 partially bypasses the spinal cord, a smaller surgical incision may be made. The included angle alpha 1 between the cutter bar 20 and the cutting head 10 is more than or equal to 100 degrees and less than or equal to 150 degrees, so that the cutting head 10 can bypass the spinal cord, and meanwhile, the cutter bar 20 can not block a certain view of an operator, and the operation is convenient.

Illustratively, the angle α1 of the cutter bar 20 with respect to the cutting head 10 is equal to 120 degrees.

Referring to fig. 1, the ultrasonic osteotome head further comprises a blade body 30, the blade body 30 is connected with the other end of the cutter bar 20, an external thread 31 is arranged on the blade body 30, and the blade body 30 can be connected with other devices through threads.

Fig. 4 shows a left side view of the cutting head and the knife holder shown in body 3. Referring to fig. 4, the cutting head 10 has a flat sheet structure, so that the cutting surface 13 of the cutting head 10 is relatively sharp, and the cutting speed of the cutting head 10 is increased.

In one implementation manner of the embodiment of the present application, the cutting head 10 and the cutter bar 20 may be manufactured in an integrally formed manner, wherein the width of the cutter bar 20 is greater than the width of the cutting head 10, so as to ensure the strength of the ultrasonic bone knife head, and the width of one end of the cutter bar 20 connected with the cutting head 10 is gradually narrowed, so that the connection transition between the cutter bar 20 and the cutting head 10 is natural.

In some embodiments of the present disclosure, the cutting surface 13 may be a straight surface or an arc surface.

In some embodiments of the present disclosure, the width D1 of the cutting surface 13 is greater than or equal to 0.2 millimeters (mm) and less than or equal to 1.0 mm. Setting the width D1 of the cutting surface 13 within the above range can increase the cutting speed of the cutting surface 13 with respect to bone tissue, and at the same time, can provide the cutting head 10 with a certain rigidity to avoid breakage.

By way of example only, and in an illustrative, the width D1 of the cut surface 13 was 0.5 mm.

Referring to fig. 1 to 3, the cutting surface 13 is serrated, the friction force of the cutting surface 13 is increased, and the ultrasonic osteotome head is stable and does not slip when used.

In another implementation manner of the present application, the cutting surface 13 is a rasp surface, so that the friction force of the cutting surface 13 can be increased, and meanwhile, the cutting surface 13 of the rasp surface is cut or broken more rapidly, so that the working efficiency of the ultrasonic bone knife head is improved.

In another implementation of the present application, the cutting surface 13 is a sharpening, so that the cutting surface 13 is sharper, increasing the cutting speed.

Referring to fig. 1-4, cutting head 10 also has a knife back surface 14 opposite cutting surface 13, and fig. 5 illustrates an oblique view of a cutting head and knife bar provided in an embodiment of the present application. Referring to fig. 5, the width D1 of the cutting surface 13 is smaller than the width D2 of the back surface 14.

In the embodiment of the present application, after the cutting head 10 passes through the spinal cord, the cutting surface 13 contacts with bone tissue, the knife back surface 14 contacts with the spinal cord, the width D2 of the knife back surface 14 is set larger, the damage to the spinal cord caused by the knife back surface 14 is avoided, and the spinal cord is not damaged in the process of operation.

In one implementation of the present embodiment, the knife back 14 is an arcuate surface. The arc surface has no edges and corners, so that the damage to the spinal cord in the operation process is avoided.

In another implementation of the present embodiment, the blade back surface 14 may be a rounded rectangular surface, as well as avoiding damage to the spinal cord.

Referring to fig. 1-3, the junction of the cutting head 10 and the blade bar 20 is rounded to avoid damage to the spinal cord during surgery.

Referring to fig. 1 to 3, the end surface of the second end 12 is serrated, and bone tissue may be cut through the end surface of the second end 12. While increasing the friction of the end face of the second end 12 and reducing slippage.

In another implementation of the present application, the end face of the second end 12 is a rasped surface, or the end face of the second end 12 is a sharpening.

In some embodiments of the present application, the included angle between the end surface of the second end 12 and the knife back surface 14 is an acute angle, the included angle between the end surface of the second end 12 and the cutting surface 13 is an obtuse angle, and the connection between the end surface of the second end 12 and the knife back surface 14 is a rounded angle, so that the connection between the end surface of the second end 12 and the cutting surface 13 is a rounded angle, and the spinal cord is not damaged in the operation process.

Referring to fig. 4, the cutting head 10 also has two opposing sides 15, both sides 15 being located between the first end 11 and the second end 12. Referring to fig. 1-3, both sides 15 are connected to the cutting surface 13. In some embodiments of the present application, the included angle α2 of the two sides 15 is greater than or equal to 2 degrees and less than or equal to 8 degrees.

In the embodiment of the application, through the arrangement, the cutting head 10 is wedge-shaped, so that the cutting surface 13 is thinned, meanwhile, the cutting head 10 has a certain thickness, the service life of the cutting head 10 is prolonged, and breakage is avoided.

In some embodiments of the present application, the length L1 of the side surface 15 is greater than or equal to 4 millimeters and less than or equal to 15 millimeters along the direction of the arrangement of the first end 11 and the second end 12.

In the present embodiment, limiting the length L1 of the side 15 to the above-described range ensures that the cutting head 10 can cut bone tissue that is pressed against the spinal cord without extending too far.

In some embodiments of the present application, the cutting head 10 is wedge-shaped in shape. The wedge shape has six faces, namely an end face of the first end 11, an end face of the second end 12, a cutting face 13, a knife back face 14 and two side faces 15.

Referring to fig. 3, the cutter bar 20 has a water injection passage 21, the water injection passage 21 having a water outlet end 22, the water outlet end 22 being adjacent the cutting head 10.

In this application embodiment, arrange water injection passageway 21, through water injection passageway 21 water injection, water flows out from water outlet end 22, washes and the cooling treatment to supersound osteotome tool bit, and water outlet end 22 is close to cutting head 10 simultaneously for hydroenergy runner cutting head 10 department, the washing and the cooling of cutting face 13 guarantee operation safety, improvement operation efficiency.

In the embodiment of the present application, the water outlet 22 is a water outlet hole.

In some embodiments of the present application, the water outlet 22 is located on the side of the cutter bar 20. Referring to fig. 1 to 3, the water outlet 22 is located at the rounded transition of the cutter bar 20, and both sides of the side of the cutter bar 20 are penetrated by the water outlet 22. In the use like this, water can follow cutter arbor 20 both sides outflow, can wash and cool down cutting head 10 in cutting head 10 both sides, increase the area of contact of water and cutting head 10, improve and wash and cool down the effect.

Fig. 6 shows a schematic structural view of another ultrasonic osteotome head provided in an embodiment of the present application. Fig. 7 shows a schematic structural view of another cutting head and tool holder provided in an embodiment of the present application. Fig. 8 illustrates a front view of another cutting head and arbor provided in an embodiment of the present application. Referring to fig. 6 to 8, the water outlet 22 is close to the connection end of the cutter bar 20 and the cutting head 10, and both sides of the side surface of the cutter bar 20 are penetrated by the water outlet 22. The ultrasonic osteotome head shown in fig. 6 to 8 is different from the ultrasonic osteotome head shown in fig. 1 to 3 in that the water injection channel 21 in the ultrasonic osteotome head shown in fig. 1 to 3 is a non-curved channel, which is easier to manufacture. The water injection channel 21 in the ultrasonic osteotome head shown in fig. 6 to 8 is a curved channel, so that the water outlet end 22 is closer to the cutting head 10, and thus water flows to the cutting head 10 more easily, and the flushing and cooling effects on the cutting head 10 are improved.

Fig. 9 shows a schematic structural view of another ultrasonic osteotome head provided in an embodiment of the present application. Fig. 10 shows a schematic structural view of another cutting head and tool holder provided in an embodiment of the present application. FIG. 11 illustrates a front view of another cutting head and arbor provided in an embodiment of the present application. In the ultrasonic osteotome head shown in fig. 9 to 11, the water injection channel 21 is composed of two sections of non-curved channels which are communicated, so that the water injection channel 21 is easy to manufacture, and the water outlet end 22 is closer to the cutting head 10 than the ultrasonic osteotome head shown in fig. 1 to 3.

In the ultrasonic osteotome head shown in fig. 9 to 11, the water outlet 22 penetrates only one side of the blade bar 20. And the water outlet 22 is located inboard of the rounded transition.

Fig. 12 shows a schematic structural view of another ultrasonic osteotome head provided in an embodiment of the present application. Fig. 13 shows a schematic structural view of another cutting head and tool holder provided in an embodiment of the present application. Fig. 14 illustrates a front view of another cutting head and arbor provided in an embodiment of the present application. Referring to fig. 12 to 14, the water injection channel 21 is also composed of two connected non-curved channels, and the ultrasonic osteotome head shown in fig. 12 to 14 is different from the ultrasonic osteotome head shown in fig. 9 to 11 in that, in the ultrasonic osteotome head shown in fig. 12 to 14, the water outlet end 22 is located outside the rounded transition.

Fig. 15 shows a schematic structural view of another ultrasonic osteotome head provided in an embodiment of the present application. Fig. 16 shows a schematic structural view of another cutting head and tool holder provided in an embodiment of the present application. Fig. 17 illustrates a front view of another cutting head and arbor provided in an embodiment of the present application. Referring to fig. 15 to 17, the water outlet 22 is located at the end surface of the cutter bar 20 where the cutting head 10 is connected, the first end 11 of the cutting head 10 has a first water outlet groove 16, and the water outlet 22 communicates with the first water outlet groove 16. Wherein the first water outlet groove 16 is a through groove, the first water outlet groove 16 penetrates through two opposite side surfaces 15 of the cutting head 10, so that water can flow out from two sides of the first water outlet groove 16. Since the first water outlet channel 16 is provided, after water flows out from the water outlet end 22, it will flow along the first water outlet channel 16 towards the second end 12 of the cutting head 10 due to inertia, so that the second end 12 of the cutting head 10 is also brought into contact with water as much as possible, thereby improving the flushing and cooling effect on the cutting head 10.

Fig. 18 shows a schematic structural view of another ultrasonic osteotome head provided in an embodiment of the present application. Fig. 19 shows a schematic view of another cutting head and tool holder configuration provided in an embodiment of the present application. FIG. 20 illustrates a front view of another cutting head and arbor provided in accordance with embodiments of the present application. Referring to fig. 18 to 20, the cutter bar 20 has a second water outlet groove 23, and the water outlet end 22 communicates with the second water outlet groove 23 through an end surface of the second water outlet groove 23 where the cutter bar 20 is connected to the cutting head 10. The second water outlet groove 23 is a through groove, and the second water outlet groove 23 penetrates through two ends of the side surface of the cutter bar 20, so that water can flow out from two sides of the second water outlet groove 23. The second water outlet groove 23 is curved, this allows the water filling channel 21 to be provided as a non-curved channel, which is easier to manufacture.

The embodiment of the application also provides a medical ultrasonic knife system, which comprises a vibration source and the ultrasonic bone knife head in the embodiment, wherein the vibration source is connected with the ultrasonic bone knife head and is used for generating vibration.

Illustratively, the vibration source is threadably coupled to external threads 31 on the blade body 30.

The medical ultrasonic knife system provided by the embodiment of the application can form a smaller surgical incision in the surgical process, and is convenient to operate.

The embodiment of the application also provides a robot-assisted ultrasonic knife system. The robot-assisted ultrasonic blade system includes the robot-assisted surgical apparatus and the medical ultrasonic blade system in the above-described embodiments. The robot assisted surgery device is connected with an ultrasonic bone knife head in the medical ultrasonic knife system so as to control the movement of the ultrasonic bone knife head.

The robot-assisted ultrasonic bone power system provided by the embodiment of the application improves the safety of the bone surgery.

It should be understood that in this specification, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., refer to an orientation or positional relationship or dimension based on that shown in the drawings, which are used for convenience of description only, and do not indicate or imply that the device or element referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the scope of protection of the present application.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The specification provides many different embodiments or examples that can be used to implement the present application. It should be understood that these various embodiments or examples are purely illustrative and are not intended to limit the scope of the application in any way. Various changes and substitutions will occur to those skilled in the art based on the disclosure herein, and these are intended to be included within the scope of the present application. The scope of protection of the present application is therefore intended to be limited only by the scope of protection defined by the appended claims.

Claims (12)

1. An ultrasonic osteotome head, comprising:

-a cutting head (10) having opposite first (11) and second (12) ends, and a cutting surface (13) between said first (11) and second (12) ends;

the cutter bar (20), the tip of cutter bar (20) with first end (11) of cutting head (10) are connected, cutter bar (20) with contained angle alpha 1 of cutting head (10) is greater than or equal to 100 degrees and is less than or equal to 150 degrees, just cutter bar (20) are towards keeping away from one side of cutting face (13) skew.

2. The ultrasonic osteotome head according to claim 1, wherein the width D1 of said cutting surface (13) is greater than or equal to 0.2 mm and less than or equal to 1.0 mm.

3. The ultrasonic osteotome head according to claim 1, wherein said cutting surface (13) is serrated; or the cutting surface (13) is a file surface; or the cutting surface (13) is a sharpening.

4. An ultrasonic osteotome head according to any of claims 1 to 3, wherein said cutting head (10) further has a blade back surface (14) opposite said cutting surface (13), a width D1 of said cutting surface (13) being smaller than a width D2 of said blade back surface (14).

5. The ultrasonic osteotome head of claim 4, wherein the blade back surface (14) is an arcuate surface.

6. An ultrasonic osteotome head according to any of claims 1 to 3, wherein said cutting head (10) further has two opposite sides (15), said sides (15) being located between said first end (11) and said second end (12) and said sides (15) being connected to said cutting face (13);

an included angle alpha 2 of the two side surfaces (15) is more than or equal to 2 degrees and less than or equal to 8 degrees.

7. The ultrasonic osteotome head according to claim 6, wherein the length L1 of said side surface (15) is greater than or equal to 4 mm and less than or equal to 15 mm in the direction of the arrangement of said first end (11) and said second end (12).

8. An ultrasonic osteotome head according to any of claims 1 to 3, wherein said blade bar (20) has a water injection channel (21), said water injection channel (21) having a water outlet end (22), said water outlet end (22) being adjacent to said cutting head (10).

9. The ultrasonic osteotome head according to claim 8, wherein said water outlet end (22) is located laterally of said blade bar (20); or alternatively

The water outlet end (22) is positioned on the end surface of the cutter bar (20) connected with the cutting head (10), the first end (11) of the cutting head (10) is provided with a first water outlet groove (16), and the water outlet end (22) is communicated with the first water outlet groove (16); or alternatively

The cutter bar (20) is provided with a second water outlet groove (23), the second water outlet groove (23) penetrates through the end face, connected with the cutting head (10), of the cutter bar (20), and the water outlet end (22) is communicated with the second water outlet groove (23).

10. An ultrasonic bone knife head according to any one of claims 1-3, characterized in that the end face of the second end (12) is serrated.

11. A medical ultrasonic blade system comprising a vibration source and an ultrasonic osteotome head according to any of claims 1 to 10;

the vibration source is connected with the ultrasonic bone knife head and is used for generating vibration.

12. A robotic-assisted ultrasonic blade system comprising a robotic-assisted surgical device and the medical ultrasonic blade system of claim 11;

the robot assisted surgery device is connected with an ultrasonic bone knife head in the medical ultrasonic knife system so as to control the movement of the ultrasonic bone knife head.