阅读说明：本技术 下颌密质骨超声钻及超声钻组件 (Ultrasonic drill and ultrasonic drill assembly for lower jaw compact bone ) 是由 邹多宏 白果 胡颖恺 陈露 杨驰 张志愿 于 2021-08-26 设计创作，主要内容包括：本发明涉及医疗器械技术领域,特别是涉及一种下颌密质骨超声钻及超声钻组件。下颌密质骨超声钻包括依次首尾连接的钻头部、颈部和超声骨刀手柄连接部；所述钻头部包括钻尖；还包括液体通过腔,所述液体通过腔自超声骨刀手柄连接部的手柄连接端经颈部延伸至钻头部的钻尖端；所述钻头部上设有相邻的刃瓣和排屑槽,所述刃瓣和排屑槽呈螺旋状沿所述钻头部的周圈设置；所述钻尖上设有与所述液体通过腔连通的第一出液孔；所述刃瓣和/或所述排屑槽上分别设有与所述液体通过腔连通的一个或多个第二出液孔。本申请可以增强切割效率、提高冷却效果、保护下牙槽神经血管束、减小术后反应。(The invention relates to the technical field of medical instruments, in particular to a mandible compact bone ultrasonic drill and an ultrasonic drill assembly. The mandible compact bone ultrasonic drill comprises a drill head part, a neck part and an ultrasonic osteotome handle connecting part which are sequentially connected end to end; the drill bit portion comprises a drill tip; the ultrasonic osteotome handle connecting part is connected with the handle connecting end of the ultrasonic osteotome handle connecting part through the neck part and extends to the drill tip end of the drill bit part; the drill bit part is provided with an adjacent cutting edge and a chip groove which are spirally arranged along the periphery of the drill bit part; the drill tip is provided with a first liquid outlet hole communicated with the liquid passing cavity; one or more second liquid outlet holes communicated with the liquid passing cavity are respectively formed in the blade lobes and/or the chip grooves. This application can strengthen cutting efficiency, improve cooling effect, alveolar neurovascular bundle, reduce the postoperative reaction under the protection.)

1. The ultrasonic drill for the mandibular compact bone is characterized by comprising a drill head part (1), a neck part (2) and an ultrasonic osteotome handle connecting part (3) which are sequentially connected end to end; the drill bit part (1) comprises a drill tip (11); the mandible compact bone ultrasonic drill also comprises a liquid passing cavity (4), and the liquid passing cavity (4) extends from the handle connecting end of the ultrasonic osteotome handle connecting part (3) to the drill tip end of the drill head part (1) through the neck part (2); the drill bit part (1) is provided with an adjacent cutting edge (12) and a chip groove (13), the cutting edge (12) and the chip groove (13) are spirally arranged along the periphery of the drill bit part (1), and the drill tip (11) is provided with a first liquid outlet hole (14) communicated with the liquid passing cavity (4); one or more second liquid outlet holes (15) communicated with the liquid passing cavity (4) are respectively arranged on the blade lobes (12) and/or the chip grooves (13).

2. The ultrasonic mandibular cortical bone drill of claim 1, wherein the drill head portion (1) is provided with a graduated marking zone (16); the scale mark zone (16) comprises a plurality of scale marks.

3. The ultrasonic mandibular cortical bone drill of claim 1, wherein the width of the land (12) is equal from the end distal to the neck (2) to the end proximal to the neck (2); the width of the chip groove (13) is equal from one end far away from the neck (2) to one end close to the neck (2).

4. Mandibular cortical bone ultrasonic drill according to claim 1, characterized in that the drill head (1) is provided with two oppositely disposed cutting lobes (12) and two oppositely disposed flutes (13), respectively.

5. The ultrasonic mandibular cortical bone drill according to claim 4, characterized in that the two lobes (12) located at the same cross-section of the drill head portion (1) are of the same width; the widths of two chip grooves (13) on the same cross section of the drill bit part (1) are the same.

6. Mandibular cortical bone ultrasonic drill according to claim 1, wherein the drill tip (11) includes one or more cutting edges (111).

7. The ultrasonic mandibular cortical bone drill according to claim 1, wherein each of said second exit openings (15) is provided at an end of said land (12) and said flute (13), respectively, adjacent to the drill tip (11); the second liquid outlet holes (15) are distributed in a staggered manner.

8. The ultrasonic mandibular cortical bone drill of claim 1, wherein the neck portion includes a first neck portion (21) and a second neck portion (22), the first neck portion (21) being connected to the drill head portion (1), the second neck portion (22) being connected to the ultrasonic osteotome handle connection portion (3); the included angle between the extending direction of the first neck part (21) and the extending direction of the second neck part (22) is 80-150 degrees; the first neck part (21) and the second neck part (22) are in round transition.

9. The ultrasonic mandibular cortical bone drill of claim 1, wherein the ultrasonic osteotome handle connecting portion (3) is provided with a retainer (31) for engagement with a fastening tool.

10. An ultrasonic drill assembly, characterized in that it comprises the ultrasonic drill for mandibular compact bone according to any one of claims 1 to 9, further comprising an ultrasonic osteotome handle (5), said ultrasonic osteotome handle (5) being connected to the ultrasonic osteotome handle connection portion (3); the ultrasonic osteotome handle (5) is provided with a water inlet passage (51) communicated with the liquid passing cavity (4).

Technical Field

The invention relates to the technical field of medical instruments, in particular to a mandible compact bone ultrasonic drill and an ultrasonic drill assembly.

Background

In recent years, due to the comfort, beauty and high chewing efficiency of the implanted teeth, more and more patients choose to implant and repair the lost teeth. Bone density can be divided into four categories: class I bone: the thick cortical bone wraps less cancellous bone, and the bone is very compact and uniform; class II bone: the cortex lycii is thin and the cancellous bone is compact; class III bone: the cortex lycii is fine and the cancellous bone is loose; class IV bone: cortical bone, thin, and cancellous bone. For class I bones, due to thick cortical bone and hard bone, a stronger cutting force is required for planting a drill bit; in the process of preparing the compact bone hole, as the friction is large, more heat is generated, and the surgical area needs to be cooled more effectively, so that the thermal injury is avoided; the traditional drill bit is applied to prepare a hole in dense bone, large pressure is required to be applied, and due to the fact that the drill bit has no tissue selectivity, if the force and the depth are not well controlled when the drill bit approaches to the lower alveolar nerve, the nerve is easily damaged, and serious complications such as bleeding and numbness are caused.

The ultrasonic osteotome converts electric energy into mechanical energy by using a high-intensity focused ultrasound technology and a transducer, and water in contacted tissue cells is vaporized and protein hydrogen bonds are broken by high-frequency ultrasonic oscillation, so that bone tissues needing to be cut in an operation are thoroughly destroyed. When the ultrasonic scalpel is used, the temperature of the ultrasonic scalpel head is lower than 38 ℃, and bone damage caused by heat generation can be effectively prevented. Because the high-intensity focused ultrasonic waves only have a destructive effect on bone tissues with specific hardness, blood vessels and nerve tissues cannot be damaged, the high-intensity focused ultrasonic waves also have a hemostatic effect on an operation wound, the wound of a minimally invasive operation is further reduced, and the accuracy, reliability and safety of the operation are greatly improved.

At present, a planting drill bit used clinically is matched with a planting mobile phone, and a special ultrasonic planting drill bit matched with an ultrasonic osteotome machine does not exist. Therefore, there is an urgent need to develop an ultrasonic implant drill suitable for mandibular compact bone to enhance cutting efficiency, improve cooling effect, protect lower alveolar neurovascular bundle, and reduce post-operative reaction.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention provides an ultrasonic drill for mandibular compact bone and an ultrasonic drill assembly to enhance cutting efficiency, improve cooling effect, protect the lower alveolar neurovascular bundle, and reduce post-operative reaction, which are used to solve the problems of the prior art.

To achieve the above objects and other related objects, the present application is achieved by the following technical solutions.

The application provides that on one hand, the mandible compact bone ultrasonic drill comprises a drill head part, a neck part and an ultrasonic osteotome handle connecting part which are sequentially connected end to end; the drill bit portion comprises a drill tip; the mandible compact bone ultrasonic drill also comprises a liquid passing cavity, and the liquid passing cavity extends from the handle connecting end of the ultrasonic osteotome handle connecting part to the drill tip end of the drill head part through the neck part; the drill bit part is provided with an adjacent cutting edge and a chip groove, the cutting edge and the chip groove are spirally arranged along the periphery of the drill bit part, and the drill tip is provided with a first liquid outlet hole communicated with the liquid passing cavity; one or more second liquid outlet holes communicated with the liquid passing cavity are respectively formed in the blade lobes and/or the chip grooves.

In some embodiments of the present application, the drill head portion is provided with a scale mark zone; the scale mark zone comprises a plurality of scale marks.

In some embodiments of the present application, the width of the land is equal from the end distal to the neck to the end proximal to the neck; the flute width of chip groove is equal to the one end that is close to the neck from the one end of keeping away from the neck.

In some embodiments of the present application, the bit portion is provided with two oppositely disposed lands and two oppositely disposed flutes, respectively.

In some embodiments of the present application, two lands located at the same cross-section of the bit portion are the same width; two flutes located on the same cross section of the bit portion have the same width.

In some embodiments of the present application, the drill tip includes one or more cutting edges.

In some embodiments of the present application, each of the second liquid outlet holes is respectively provided at one end of the cutting edge and the chip groove close to the drill tip; the second liquid outlet holes are distributed in a staggered manner.

In some embodiments of the present application, the neck portion comprises a first neck portion connected to the drill bit portion and a second neck portion connected to the ultrasonic scalpel handle connection portion; the included angle between the extending direction of the first neck part and the extending direction of the second neck part is 80-150 degrees.

In some embodiments of the present application, the first neck and the second neck are rounded in transition.

In some embodiments of the present application, the handle connecting portion of the ultrasonic osteotome is provided with a retainer for engaging a fastening tool.

The ultrasonic drill component comprises the ultrasonic drill for the mandibular compact bone in the first aspect of the application and an ultrasonic osteotome handle, wherein the ultrasonic osteotome handle is connected with the connecting part of the ultrasonic osteotome handle; the ultrasonic osteotome handle is provided with a water inlet channel communicated with the liquid through cavity.

Compared with the prior art, the beneficial effect of this application is:

(1) the drill bit part is a twist drill, the drill tip is provided with a cutting edge, the cutting efficiency is high, and the drill bit is suitable for preparing hard bone holes.

(2) The ultrasonic drill for the mandibular compact bone has small wound and can effectively protect the lower alveolar nerve.

(3) Carry out inside and outside two cooling through first play liquid hole and second play liquid hole, effectively reduce art district's temperature, wash the bone bits.

(4) Convenient cleaning and disinfection, convenient use, safety and reliability.

Drawings

Fig. 1 shows a schematic structure of a mandible compact bone ultrasonic drill of the application.

Fig. 2 is an enlarged schematic structural diagram of the first liquid outlet hole and the second liquid outlet hole in the present application.

Fig. 3 is an enlarged structural view of the internal thread of the handle connecting part of the ultrasonic osteotome in the present application.

Fig. 4 is a schematic view of a split structure of the ultrasonic drill assembly of the present application.

Fig. 5 is a schematic structural view of the end portion of the ultrasonic osteotome handle of the present application connected to the ultrasonic osteotome handle connection portion.

Description of the reference numerals

1 drill bit part

11 drill point

111 cutting edge

12-edge land

13 chip groove

14 first liquid outlet

15 second liquid outlet

16 scale mark zone

2 neck part

21 first neck part

22 second neck part

3 ultrasonic osteotome handle connecting part

31 retention part

4 liquid passing cavity

5 ultrasonic osteotome handle

51 water inlet channel

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 5. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

As shown in fig. 1 to 3, the embodiment of the invention provides a mandible compact bone ultrasonic drill, which comprises a drill bit part 1, a neck part 2 and an ultrasonic osteotome handle connecting part 3 which are sequentially connected end to end; the bit part 1 comprises a drill tip 11; the mandible compact bone ultrasonic drill also comprises a liquid passing cavity 4, and the liquid passes through the cavity 4 and extends from the ultrasonic scalpel handle connecting end of the ultrasonic scalpel handle connecting part 3 to the drill tip end of the drill head part 1 through the neck part 2; the drill bit part 1 is provided with an adjacent cutting edge 12 and a chip groove 13, the cutting edge 12 and the chip groove 13 are spirally arranged along the periphery of the drill bit part 1, and the drill tip 11 is provided with a first liquid outlet 14 communicated with the liquid passing cavity 4; one or more second liquid outlet holes 15 communicated with the liquid passing cavity 4 are respectively arranged on the cutting edge 12 and/or the chip groove 13. The utility model provides a mandible compact bone ultrasonic drill, through 11 reinforcing cutting efficiencies of drill point, improve interior cooling effect through first play liquid hole 14, go out liquid hole 15 through the second and improve outer cooling effect, connect supersound osteotome instrument through supersound osteotome handle connecting portion 3, because high strength focus ultrasonic wave only has the destructive action to the bone tissue of specific hardness, not only can not destroy blood vessel and nervous tissue, can also play hemostatic effect to the operation wound, further reduce minimally invasive surgery's wound, therefore, mandibular compact bone ultrasonic drill can protect down alveolar neurovascular bundle, reduce the postoperative reaction.

In the ultrasonic drill for the mandibular compact bone provided by the embodiment of the present application, the drill bit portion 1 refers to: the working part of the mandible compact bone ultrasonic drill is a twist drill, the twist drill with a drill bit having better cutting capacity is adopted to prepare holes for the mandible compact bone, and bone chips can be better discharged from a spiral chip removal groove. The special structure of the mandible compact bone ensures that the structure and the requirement of the mandible compact bone are different from those of the drill of the maxilla spongy bone, the mandible spongy bone and the maxilla compact bone in design, and the use of different drills has specificity.

In the mandible compact bone ultrasonic drill provided by the embodiment of the application, as shown in fig. 1, the neck part 2 is used for connecting the drill head part 1 and the ultrasonic osteotome handle connecting part 3. The neck 2 is an extension of the drill head 1 and facilitates the drilling of a bone with a greater height.

In the ultrasonic drill for the mandibular compact bone provided by the embodiment of the application, the ultrasonic scalpel handle connecting part 3 is used for connecting the ultrasonic drill for the mandibular compact bone with the existing ultrasonic scalpel instrument and transmitting the power required by drilling. The ultrasonic osteotome handle connection portion 3 includes an ultrasonic osteotome handle connection portion interface (as shown in fig. 3) for connecting to an ultrasonic osteotome handle 5 of an ultrasonic osteotome instrument (e.g., a docking port structure of the ultrasonic osteotome handle 5 of an international general-purpose ultrasonic osteotome instrument, as shown in fig. 5).

In the mandible compact bone ultrasonic drill that this application embodiment provided, as figure 1, liquid passes through cavity 4 and is the hollow structure that the supersound osteotome handle link end from supersound osteotome handle connecting portion 3 extends to the drill point end of drill bit portion 1 through neck 2 and forms, liquid passes through cavity 4 and includes the first cavity of locating in supersound osteotome handle connecting portion 3, locates the second cavity in neck 2 and locates the third cavity in drill bit portion 1, and first cavity, second cavity, third cavity communicate in proper order from beginning to end. The first cavity, the second cavity and the third cavity are all hollow structures, and the inner diameters of the first cavity, the second cavity and the third cavity can be equal or different. In a specific embodiment, the inner diameter of the third cavity is slightly larger than that of the second cavity, so that the third cavity can better match with the first liquid outlet hole 14 and the second liquid outlet hole 15 to respectively cool down and cool inside and outside after water is discharged, and the cooling effect is improved.

In the ultrasonic drill for the mandibular compact bone provided by the embodiment of the application, as shown in fig. 1, the chip discharge groove 13 is a spiral groove on the drill bit part 1, and the chip discharge groove 13 plays a role in discharging bone chips upwards in the reaming process, thereby reducing the friction heat generation in the drilling process, preventing bone burn and bone necrosis, and reducing the tooth implantation failure rate. Referring to fig. 1, the land 12 refers to a portion of the upper outer edge of the bit portion 1 where the chip flutes 13 are not cut.

In one implementation, the width of the land 12 is equal from the end distal to the neck to the end proximal to the neck. The flute width of the flute 13 is equal from the end far away from the neck to the end near the neck.

In one embodiment, the drill head 1 is provided with two oppositely disposed cutting edges 12 and two oppositely disposed flutes 13. In a particular embodiment, two lands 12 located at the same cross-section of the drill bit portion 1 are the same width; two flutes 13 located in the same cross-section of the drill head 1 are of the same width.

In one embodiment, the helix angle of the land 12 may be 30 ° to 60 °, 30 ° to 40 °, 40 ° to 50 °, or 50 ° to 60 °. The helix angle is the angle between the tangential direction of the outer edge of the land 12 and the axial direction of the drill bit portion 1.

In the mandible compact bone ultrasonic drill provided by the embodiment of the application, as shown in fig. 1-2, the drill tip 1 is provided with a cutting edge 111, and the cutting edge 111 has specific cutting capacity. Be equipped with on the drill tip 11 with the first play liquid hole 14 that liquid passes through chamber 4 intercommunication can cool down and the internal cooling of cutting department, improves the cooling effect, and can wash the bone fragment. In one embodiment, the first outlet holes 14 may have a diameter of, for example, 0.1mm to 1mm, 0.1mm to 0.3mm, 0.3mm to 0.5mm, 0.5mm to 0.8mm, 0.8mm to 1.0mm, 0.1mm to 0.2mm, 0.2mm to 0.3mm, 0.3mm to 0.4mm, 0.4mm to 0.5mm, 0.5mm to 0.6mm, 0.6mm to 0.7mm, 0.7mm to 0.8mm, 0.8mm to 0.9mm, or 0.9mm to 1.0 mm.

In the ultrasonic drill for mandibular compact bone provided by the embodiment of the present application, as shown in fig. 1-2, one or more second liquid outlet holes 15 communicated with the liquid passing cavity 4 are respectively formed in the blade 12 and/or the chip discharge groove 13. Can go out the outer cooling of art district and can rinse the bone fragment through second play liquid hole 15. The number of the second liquid outlet holes 15 is not limited, and in a specific embodiment, the number of the second liquid outlet holes 15 may be, for example, 1 to 8, 1 to 4, 4 to 8, and the like. In a specific embodiment, each of said second outlet openings 15 is provided at an end of said land 12 and said flute 13, respectively, near the drill tip 11. More specifically, the second liquid outlet holes 15 are distributed in a staggered manner, that is, the heights of the second liquid outlet holes 15 on the blade 12 and the chip discharge groove 13 can be different, so that cooling in different directions and different angles of the operation area can be better realized. More specifically, a plurality of second liquid outlet holes 15 can be uniformly distributed on each blade 12 or each chip groove 13. The diameter of the second outlet holes 15 may be, for example, 0.1mm to 1mm, 0.1mm to 0.3mm, 0.3mm to 0.5mm, 0.5mm to 0.8mm, 0.8mm to 1.0mm, 0.1mm to 0.2mm, 0.2mm to 0.3mm, 0.3mm to 0.4mm, 0.4mm to 0.5mm, 0.5mm to 0.6mm, 0.6mm to 0.7mm, 0.7mm to 0.8mm, 0.8mm to 0.9mm, or 0.9mm to 1.0 mm.

In the ultrasonic drill for the mandibular compact bone provided by the embodiment of the application, as shown in fig. 1-2, the drill head portion 1 is provided with a scale mark area 16, and the scale mark area 16 can indicate the drilling depth. The scale mark area 16 comprises a plurality of scale marks which are mark lines and/or mark grooves with different colors. And a scale mark is arranged on the scale mark area 16 at intervals of 1-4 mm or 2 mm. The scale mark is used for marking the distance from one end of the drill tip 11 of the mandible compact bone ultrasonic drill.

In the ultrasonic drill for mandibular compact bone provided in the embodiment of the present application, the length and outer diameter of the drill head 1 are generally not particularly limited, and may be specifically selected according to the circumstances of the operation, for example. In one embodiment, the length of the bit portion 1 may be 8mm to 15mm, 8mm to 10mm, 10mm to 12mm, 12mm to 15mm, or the like. The outer diameter of the drill bit part 1 is 2 mm-6 mm, 2 mm-3 mm, 3 mm-4 mm, 4 mm-5 mm or 5 mm-6 mm. More specifically, the drill bit portion 1 has an outer diameter of 2.4mm, 2.8mm, 3.2mm, 3.6mm, 4.0mm, 4.3mm, or the like. The drill bit part 1 in the aforementioned length and outer diameter ranges is used for the preparation of planting cavities of different outer diameters and depths.

In the mandible compact bone ultrasonic drill provided by the embodiment of the application, as shown in fig. 1, the neck part 2 comprises a first neck part 21 and a second neck part 22 which are connected, the first neck part 21 is connected with the drill head part 1, and the second neck part 22 is connected with the ultrasonic bone knife handle connecting part 3. The first neck 21 and the second neck 22 are rounded at the junction. The structure is smooth, avoids stress concentration on the one hand, and on the other hand protects operating personnel and patients. For convenience of operation in operation, a certain angle is usually required to be satisfied between the extending direction of the first neck portion 21 and the extending direction of the second neck portion 22, and an included angle between the extending direction of the first neck portion 21 and the extending direction of the second neck portion 22 may be 80 ° to 150 °, 80 ° to 100 °, 100 ° to 120 ° to 140 °, or 140 ° to 150 °. Generally, the first neck portion 21 and the second neck portion 22 are distributed in a columnar structure extending along the respective axial directions. The extending direction of the first neck portion 21 is the axial extending direction of the first neck portion 21. The extending direction of the second neck 22 is the axial extending direction of the second neck 22.

In the mandible cortical bone ultrasonic drill provided by the embodiment of the application, the lengths of the first neck part 21 and the second neck part 22 are not limited in general, and can be selected according to the actual intraoperative situation, and more specifically, different models can be selected for preparing cavities in the posterior tooth area and the anterior tooth area. The length of the first neck 21 may be 8mm to 15mm, 8mm to 10mm, 10mm to 12mm, or 12mm to 15mm, or the like. The length of the second neck 22 may be 15mm to 20mm, 15mm to 18mm, or 18mm to 20 mm. The outer diameter of the neck portion 2 is substantially equal to the outer diameter of the drill bit portion 1. In one embodiment, the outer diameter of the neck 2 is, for example, 2mm to 6mm, 2mm to 3mm, 3mm to 4mm, 4mm to 5mm, or 5mm to 6 mm. More specifically, the outer diameter of the neck portion 2 is 2.4mm, 2.8mm, 3.2mm, 3.6mm, 4.0mm, 4.3mm, or the like.

In the ultrasonic drill for mandibular compact bone provided by the embodiment of the present application, as shown in fig. 3, an internal thread is provided in the ultrasonic scalpel handle connecting portion 3, as shown in fig. 5, an external thread matched with the internal thread is provided on the ultrasonic scalpel handle 5, so that the ultrasonic scalpel handle 5 is connected with the ultrasonic scalpel instrument through the ultrasonic scalpel handle 5, in order to further fix the position, an additional auxiliary tool, such as a wrench, is required to further fix the ultrasonic scalpel handle connecting portion 3 and the ultrasonic scalpel handle 5, and at this time, the further fixation can be realized by providing the fixing portion 31 matched with a fastening tool on the ultrasonic scalpel handle connecting portion 3. The tightening tool may be, for example, a wrench or the like.

In the ultrasonic drill for the mandibular compact bone provided by the embodiment of the application, the ultrasonic implant drill is made of medical stainless steel.

According to another aspect of the embodiment of the present application, there is provided an ultrasonic drill assembly, comprising the ultrasonic drill for mandibular compact bone according to the first aspect of the present invention, as shown in fig. 4, further comprising an ultrasonic osteotome handle 5, wherein the ultrasonic osteotome handle 5 is connected to the ultrasonic osteotome handle connection portion 3; the ultrasonic osteotome handle 5 is provided with a water inlet passage 51 communicated with the liquid passing cavity 4.

In the ultrasonic drill assembly provided in the embodiment of the present application, the ultrasonic osteotome handle 5 is a part of an ultrasonic osteotome instrument, and may be various ultrasonic osteotome instruments in the prior art, such as a woodpecker ultrasonic osteotome machine uirrasurgery. The ultrasonic osteotome handle connection portion 3 can be matched with an ultrasonic osteotome handle 5 on various existing general ultrasonic osteotome machines.

In the ultrasonic drill assembly provided by the embodiment of the application, as shown in fig. 4, the ultrasonic osteotome handle 5 is further provided with a water inlet channel 51, and the water inlet channel 51 is further communicated with the liquid passing cavity 4 from the connecting end of the ultrasonic osteotome handle connecting portion 3 through the cavity of the ultrasonic osteotome handle 5.

The ultrasonic drill for the mandibular compact bone, namely the working process of the ultrasonic drill component, comprises the following steps:

the mandible compact bone ultrasonic drill is placed in a special tool box for clinical use after being sterilized. When in use, after the ultrasonic osteotome handle connecting part 3 is connected with the ultrasonic osteotome handle 5, the ultrasonic osteotome handle connecting part 3 is fixed with the ultrasonic osteotome handle 5 by a fastening tool, the drill tip 11 of the drill bit part 1 is provided with a cutting edge 111, after the mandibular compact bone pre-implant is cut, the drill bit part 1 does not rotate through high-frequency ultrasonic oscillation, but the hole can be prepared according to the preset depth along with the drill tip going deep into the mandible compact bone, and the depth of the cavity can be observed through the scale of the scale mark area 16, in the process of preparing the hole, broken bone chips can be generated and can be discharged along with the chip discharge groove 13, sterile normal saline enters from the water inlet channel 51 in the process of preparing the hole and enters into liquid to pass through the cavity 4, the bone fragments in the holes are washed out through the first liquid outlet holes 14, the temperature of the operation area is reduced, and the bone fragments are cooled out of the operation area and further washed out through the second liquid outlet holes 15. After the hole preparation is finished, the implant is implanted, and the wound is sutured.

In summary, the ultrasonic drill and ultrasonic drill assembly for mandibular compact bone of the present application: (1) the drill bit part 1 is a twist drill, the drill tip 11 is provided with a cutting edge 111, the cutting efficiency is high, and the drill bit is suitable for preparing holes for harder bone. (2) The ultrasonic drill for the mandibular compact bone has small wound and can effectively protect the lower alveolar nerve. (3) Carry out inside and outside double cooling through first play liquid hole 14 and second play liquid hole 15, effectively reduce art district's temperature, wash the bone bits. (4) Convenient cleaning and disinfection, convenient use, safety and reliability.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.