阅读说明：本技术 一种下颌松质骨超声种植钻及超声种植体组件 (Ultrasonic planting drill for mandibular cancellous bone and ultrasonic planting body assembly ) 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松质骨超声种植钻及超声种植体组件。下颌松质骨超声种植钻包括依次连接的颈部和超声骨刀手柄连接部；所述颈部包括钻尖；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延伸至颈部的钻尖端；所述钻尖上设有与所述液体通过腔连通的第一出液孔；所述颈部的侧壁上设有与所述液体通过腔连通的一个或多个第二出液孔。本申请超声种植钻备孔,创伤小、效率高、可有效保护下牙槽神经；超声种植钻温度低于38℃,有效防止骨的热损伤。(The invention relates to the technical field of medical instruments, in particular to an ultrasonic implant drill for cancellous bone of a lower jaw and an ultrasonic implant assembly. The ultrasonic planting drill for the lower jaw cancellous bone comprises a neck part and an ultrasonic osteotome handle connecting part which are sequentially connected; the neck includes 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 liquid passing cavity; the drill tip is provided with a first liquid outlet hole communicated with the liquid passing cavity; and one or more second liquid outlet holes communicated with the liquid passing cavity are formed in the side wall of the neck. The ultrasonic planting drill has the advantages that the hole drilling is completed, the wound is small, the efficiency is high, and the lower alveolar nerve can be effectively protected; the temperature of the ultrasonic implant drill is lower than 38 ℃, so that the thermal injury of bones is effectively prevented.)

1. An ultrasonic planting drill for mandibular cancellous bone is characterized by comprising a neck part (1) and an ultrasonic osteotome handle connecting part (2) which are sequentially connected; the neck (1) comprises a drill tip (11); the ultrasonic planting drill for the mandible cancellous bone further comprises a liquid passing cavity (3), and the liquid passing cavity (3) extends from the handle connecting end of the ultrasonic scalpel handle connecting part (2) to the drill tip of the neck part (1); a first liquid outlet hole (12) communicated with the liquid passing cavity (3) is formed in the drill tip (11); one or more second liquid outlet holes (13) communicated with the liquid passing cavity (3) are formed in the side wall of the neck (1).

2. The ultrasonic planting drill for the spongy bone of the lower jaw as claimed in claim 1, wherein the neck (1) is provided with a scale mark area (14); the scale mark zone (14) comprises a plurality of scale marks.

3. The ultrasonic planting drill for the spongy cancellous bone under the mandible according to claim 2, wherein the scale marks are mark lines and/or mark grooves with different colors.

4. The ultrasonic planting drill for the mandibular cancellous bone according to claim 1, characterized in that the aperture of the first liquid outlet hole (12) is equal to or larger than the aperture of the second liquid outlet hole (13).

5. The ultrasonic planting drill for the mandibular cancellous bone according to claim 1, characterized in that the second liquid outlet holes (13) are respectively formed at one end of the side wall of the neck portion (1) near the drill tip (11); the second liquid outlet holes (13) are distributed in a staggered manner.

6. The ultrasonic implant drill for mandibular cancellous bone according to claim 2, characterized in that said neck portion comprises a first neck portion (15) and a second neck portion (16), said second neck portion (16) being connected to said ultrasonic blade handle connection portion (2).

7. The ultrasonic implant drill for the cancellous bone of the lower jaw according to claim 6, characterized in that the included angle between the extending direction of the first neck portion (15) and the extending direction of the second neck portion (16) is 80 ° to 150 °; the first neck part (15) and the second neck part (16) are in round transition.

8. The ultrasonic implant drill for mandibular cancellous bone according to claim 6, characterized in that said graduated marking zone (14) is provided on said first neck portion (15).

9. The ultrasonic planting drill for the mandibular cancellous bone according to claim 1, characterized in that the ultrasonic scalpel handle connecting portion (2) is provided with a retainer (21) which is matched with a fastening tool.

10. An ultrasonic implant drill assembly, characterized by comprising the ultrasonic implant drill for mandibular cancellous bone according to any one of claims 1 to 9, further comprising an ultrasonic scalpel handle (4), wherein the ultrasonic scalpel handle (4) is connected with the ultrasonic scalpel handle connecting part (2); the ultrasonic osteotome handle (4) is provided with a water inlet channel (41) communicated with the liquid passing cavity (3).

Technical Field

The invention relates to the technical field of medical instruments, in particular to an ultrasonic implant drill for cancellous bone of a lower jaw and an ultrasonic implant assembly.

Background

The implant is comfortable, beautiful and high in chewing efficiency, and is widely applied to repairing missing teeth clinically in recent years. At present, the planting drill bit applied clinically is mostly matched with an electric planter, and due to the fact that tissue selectivity is absent, when the alveolar bone quantity of mandible is insufficient, a planting doctor with insufficient experience controls the depth poorly during drilling, alveolar neurovascular bundles are easily damaged, and serious complications such as bleeding and lower lip 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.

Bone density is divided into four types, I type bones are hard bones, II and III types are common bones, IV type bones are loose bones, and bones with different densities are suitable for tool bits with different designs, so that an ultrasonic planting drill for planting lower jaw cancellous bones such as (II, III and IV types of bones) is urgently needed to improve bone cutting efficiency, protect lower alveolar neurovascular bundles and reduce postoperative reaction.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide an ultrasonic planting drill for cancellous bone of the lower jaw and an ultrasonic planting drill assembly, which are used for planting bones of lower jaws II, III and IV so as to solve the problem that the traditional planting drill bit cannot protect important soft tissues such as nerves and the like.

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

The ultrasonic planting drill for the spongy bone of the lower jaw comprises a neck part and an ultrasonic osteotome handle connecting part which are sequentially connected; the neck includes a drill tip; the ultrasonic planting drill for the lower jaw cancellous bone further comprises a liquid passing cavity, and the liquid passing cavity extends from the ultrasonic scalpel handle connecting end of the handle connecting part to the drill tip end of the neck part; the drill tip is provided with a first liquid outlet hole communicated with the liquid passing cavity; and one or more second liquid outlet holes communicated with the liquid passing cavity are formed in the side wall of the neck.

In some embodiments of the present application, a scale mark region is provided on the neck; the scale mark zone comprises a plurality of scale marks.

In some embodiments of the present application, the scale marks are marked with marking lines and/or marking grooves of different colors.

In some embodiments of the present application, the first exit hole has an aperture that is equal to or larger than the aperture of the second exit hole.

In some embodiments of the present application, the second liquid outlet holes are respectively formed at one end of the side wall of the neck portion, which is 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 includes a first neck portion and a second neck portion, the second neck portion being connected to the ultrasonic osteotome handle connection portion.

In some embodiments of the present application, an angle between an extending direction of the first neck portion and an extending direction of the second neck portion is 80 ° to 150 °; the first neck portion and the second neck portion are in fillet transition.

In some embodiments of the present application, the scale mark zone is provided on the first neck portion.

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.

Another aspect of the present application provides an ultrasonic implant drill assembly, including the ultrasonic implant drill for cancellous bone of the lower jaw according to the first aspect of the present application, further including an ultrasonic osteotome handle, the ultrasonic osteotome handle being connected to the ultrasonic osteotome handle connection portion; 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 ultrasonic planting drill for the cancellous bone of the lower jaw has small wound and high efficiency, and can effectively protect the lower alveolar nerve.

(2) The temperature of the ultrasonic implant drill for the mandible cancellous bone is lower than 38 ℃, and the thermal injury of the bone is effectively prevented.

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

Drawings

Fig. 1 shows a structural schematic diagram of a mandible cancellous bone ultrasonic implant drill of the present 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 showing a split structure of the ultrasonic implant 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 neck part

11 drill point

12 first liquid outlet

13 second liquid outlet

14 scale mark zone

15 first neck part

16 second neck part

2 ultrasonic osteotome handle connection

21 retention part

3 liquid passing cavity

4 ultrasonic osteotome handle

41 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, an embodiment of the invention provides an ultrasonic implant drill for mandibular cancellous bone, which includes a neck portion 1 and an ultrasonic osteotome handle connecting portion 2 connected in sequence; the neck 1 comprises a drill tip 11; the ultrasonic planting drill for the mandibular cancellous bone further comprises a liquid passing cavity 3, and the liquid passes through the cavity 3 and extends from the ultrasonic scalpel handle connecting end of the ultrasonic scalpel handle connecting part 2 to the drill tip end of the neck part 1; a first liquid outlet hole 12 communicated with the liquid passing cavity 3 is formed in the drill tip 11; one or more second liquid outlet holes 13 communicated with the liquid passing cavity 3 are formed in the side wall of the neck part 1. The utility model provides a lower jaw cancellous bone supersound is planted and is bored, through 11 reinforcing cutting efficiencies of drill point, through first play liquid hole 12 improvement internal cooling effect, go out liquid hole 13 through the second and improve external cooling effect and avoid the bone loss, connect supersound osteotome instrument through supersound osteotome handle connecting portion 2, because high strength focused ultrasound 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 action to the operation wound, further reduce minimal access surgery's wound, therefore, lower jaw cancellous bone supersound is planted and is bored the hole, the wound is little, high efficiency, alveolar nerve under can effectively protecting.

In the ultrasonic implant drill for the cancellous bone of the lower jaw provided by the embodiment of the application, the neck 1 refers to: the working part of the mandible cancellous bone ultrasonic implant drill is characterized in that a neck part 1 is formed by extending a certain distance from a drill tip 11 and can go deep into a prepared hole. For the ultrasonic implant drill of the lower jaw cancellous bone, the expanded part is not required like the ultrasonic implant drill of the upper jaw cancellous bone, because the bone density of the lower jaw cancellous bone is relatively denser than that of the upper jaw cancellous bone, and therefore, a hollow cylinder with a smaller neck outer diameter and a consistent upper and lower diameter is required. Therefore, the structure and the requirements of the ultrasonic implant drill for the lower jaw cancellous bone are different from those of the drill for the upper jaw cancellous bone in design, and the use of different drills has specificity.

In the ultrasonic planting drill for the cancellous bone of the lower jaw provided by the embodiment of the application, the handle connecting part 2 of the ultrasonic osteotome is used for connecting the ultrasonic planting drill for the cancellous bone of the lower jaw with the existing ultrasonic osteotome instrument and transmitting the power required by drilling. The ultrasonic osteotome handle connection portion 2 includes an ultrasonic osteotome handle connection portion interface (as shown in fig. 3) for connecting to an ultrasonic osteotome handle 4 of an ultrasonic osteotome instrument (e.g., a docking port structure of the ultrasonic osteotome handle 4 of an international general-purpose ultrasonic osteotome instrument, as shown in fig. 5).

In the spongy bone supersound of lower jaw planting that this application embodiment provided bored, as figure 1, liquid passes through cavity 3 and is the hollow structure that the supersound osteotome handle link from supersound osteotome handle connecting portion 2 extended to the drill tip of neck 1 and forms, liquid passes through cavity 3 and includes the first cavity of locating in supersound osteotome handle connecting portion 2, locates the second cavity in neck 1, first cavity, second cavity end to end intercommunication. The first cavity and the second cavity are both hollow structures, and the inner diameters of the first cavity, the second cavity and the third cavity can be equal or different.

In the spongy bone supersound of lower jaw planting that this application embodiment provided bores, as figure 1, be equipped with on the drill tip 11 with liquid passes through the first liquid hole 12 of chamber 3 intercommunication, can reduce art district's temperature, improves the cooling effect, can wash the bone bits.

In the ultrasonic implant drill for the cancellous bone of the lower jaw provided by the embodiment of the application, as shown in fig. 1, one or more second liquid outlet holes 13 communicated with the liquid passing cavity 3 are formed in the side wall of the neck portion 1. The second liquid outlet hole 13 can be used for cooling outside the operation area and washing bone fragments. The number of the second liquid outlet holes 13 is not limited, and in one embodiment, the number of the second liquid outlet holes 13 may be, for example, 1 to 8, 1 to 4, 4 to 8, and the like. In one embodiment, each of the second exit holes 13 is disposed at an end of the side wall of the neck portion 1 near the drill tip 11. More specifically, each second liquid outlet hole 13 is distributed in a staggered manner, that is, the heights and the orientations of the second liquid outlet holes 13 on the side wall of the neck portion 1 can be different, so that the cooling of the operating area in different orientations and different angles can be better realized. More specifically, a plurality of second liquid outlet holes 13 may be uniformly distributed on the side wall of the neck portion 1.

In the ultrasonic implant drill for cancellous bone of the lower jaw provided in the embodiment of the present application, as shown in fig. 2, the aperture of the first liquid outlet hole 12 is greater than or equal to the aperture of the second liquid outlet hole 13.

In one embodiment, the first outlet hole 12 may have a diameter of, for example, 0.1mm to 3mm, 0.1mm to 0.3mm, 0.3mm to 0.5mm, 0.5mm to 0.8mm, 0.8mm to 1.0mm, 1.0mm to 1.5mm, 1.5mm to 2.0mm, 2.0mm to 2.5mm, or 2.5mm to 3.0 mm.

In one embodiment, the diameter of the second outlet hole 13 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 planting drill for the spongy bone of the lower jaw provided by the embodiment of the application, as shown in fig. 1, the neck 1 is provided with the scale mark zone 14, specifically, one end of the neck 1, which is close to the drill tip 11, is provided with the scale mark zone 14, and the scale mark zone 14 can indicate the drilling depth. The scale mark region 14 includes scale marks which are mark lines and/or mark grooves with different colors. And a scale mark is arranged on the scale mark area 14 at intervals of 1 mm-4 mm or 2 mm. The scale mark is used for marking the distance from one end of a drill tip 11 of the mandibular cancellous bone ultrasonic planting drill.

In the ultrasonic implant drill for the spongy cancellous bone of the lower jaw provided by the embodiment of the application, as shown in fig. 1, the neck portion 1 comprises a first neck portion 15 and a second neck portion 16 which are connected, and the second neck portion 16 is connected with the ultrasonic bone knife handle connecting portion 2. The first neck 15 and the second neck 16 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 15 and the extending direction of the second neck portion 16, and an included angle between the extending direction of the first neck portion 15 and the extending direction of the second neck portion 16 may be 80 ° to 150 °, 80 ° to 100 °, 100 ° to 120 °, 120 ° to 130 °, or 130 ° to 150 °. Generally, the first neck portion 15 and the second neck portion 16 are distributed in a columnar structure extending along the respective axial directions. The extending direction of the first neck portion 15 is the axial extending direction of the first neck portion 15. The extending direction of the second neck portion 16 is the axial extending direction of the second neck portion 16.

In the ultrasonic implant drill for the spongy bone of the lower jaw provided by the embodiment of the application, the lengths of the first neck part 15 and the second neck part 16 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 15 may be 8mm to 15mm, 8mm to 10mm, 10mm to 12mm, or 12mm to 15mm, or the like. The length of the second neck 16 may be 15mm to 20mm, 15mm to 18mm, or 18mm to 20 mm. The outer diameter of the neck 1 is generally not limited. In one embodiment, the neck 1 has an outer diameter of, for example, 2mm to 5mm, 2mm to 3mm, 3mm to 4mm, or 4mm to 5 mm. More specifically, the neck portion 1 has an outer diameter of 1.8mm, 2.0mm, 2.4mm, 2.8mm, 3.2mm, 3.6mm, 4.0mm, 4.3mm, etc. The outer diameter of the drill tip 11 is slightly smaller than the outer diameter of the first neck 15.

In the ultrasonic implant drill for cancellous bone of lower jaw 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 2, as shown in fig. 5, an external thread matched with the internal thread is provided on the ultrasonic scalpel handle 4, so that the ultrasonic scalpel handle 4 is connected with an ultrasonic scalpel instrument through the ultrasonic scalpel handle 4, in order to further fix the position, an additional auxiliary tool, for example, a wrench, is required to further fix the ultrasonic scalpel handle connecting portion 2 and the ultrasonic scalpel handle 4, and at this time, the further fixing position can be realized by providing the fixing portion 21 matched with a fastening tool on the ultrasonic scalpel handle connecting portion 2. The tightening tool may be, for example, a wrench or the like.

In the spongy bone ultrasonic planting drill of the lower jaw provided by the embodiment of the application, the ultrasonic planting drill is made of medical stainless steel materials.

Another aspect of the embodiment of the present application provides an ultrasonic implant drill assembly, including the ultrasonic implant drill for cancellous bone of the lower jaw according to the first aspect of the present invention, as shown in fig. 4, further including an ultrasonic scalpel handle 4, where the ultrasonic scalpel handle 4 is connected to the ultrasonic scalpel handle connecting portion 2; the ultrasonic osteotome handle 4 is provided with a water inlet channel 41 communicated with the liquid passing cavity 3.

In the ultrasonic implant drill assembly provided in the embodiment of the present application, the ultrasonic osteotome handle 4 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 2 can be matched with an ultrasonic osteotome handle 4 on various existing general ultrasonic osteotome machines.

In the ultrasonic implant drill assembly provided by the embodiment of the application, as shown in fig. 4, a water inlet channel 41 is further arranged on the ultrasonic osteotome handle 4, and the water inlet channel 41 is further communicated with the liquid through cavity 3 from the connecting end of the ultrasonic osteotome handle connecting part 2 through the cavity of the ultrasonic osteotome handle 4.

The ultrasonic planting drill for the lower jaw cancellous bone is the working process of the ultrasonic planting drill component:

the mandible cancellous bone ultrasonic implant drill is placed in a special tool box clinically and is used clinically after being sterilized. After being connected ultrasonic osteotome handle connecting portion 2 and ultrasonic osteotome handle 4 during the application, further carry out the maintenance with ultrasonic osteotome handle connecting portion 2 and ultrasonic osteotome handle 4 with fastening tool, drill point 11 can be to the spongy bone of lower jaw department of implanting teeth in advance, after the cutting, through high frequency ultrasonic oscillation, first neck 15 can be equipped with the hole according to predetermined degree of depth in deepening the spongy bone of lower jaw along with the drill point, and can observe the degree of depth of nest hole through the scale of scale sign district 14, the aseptic normal saline gets into from inlet channel 41 in the hole preparation process, and get into liquid and pass through behind the chamber 3, wash in the hole and around the bone bits and reduce art district's temperature through first liquid outlet 12, carry out the art district's external cooling and further wash the bone bits through second liquid outlet 13. After the hole preparation is finished, the implant is implanted, and the wound is sutured. The operation process can be completed by one person, the operation is simple and convenient, and the effect is good.

To sum up, the spongy bone supersound of lower jaw of this application is planted and is bored subassembly is planted to supersound: (1) the ultrasonic planting drilling of the lower jaw cancellous bone is small in wound and high in efficiency, and the lower alveolar nerve can be effectively protected; (2) the temperature of the ultrasonic implant drill for the spongy bone of the lower jaw is lower than 38 ℃, so that the thermal injury of the bone is effectively prevented; (3) 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.