Cylindrical drill with spiked tip

Abstract

The application discloses a cylindrical drill with a sharp tip, and relates to the field of medical devices. The drill comprises a cylindrical drill bit and a connecting handle. The outer surface of the drill bit is provided with multiple rings of annularly arranged sharp tips in the axial direction. The sharp tips are conical structures with a base diameter of 0.4-0.6 mm and a height of 0.7-0.9 mm. Each ring is provided with 12-19 sharp tips, which are arranged in a staggered manner. The axial spacing between two adjacent rings is equal to the base diameter of the sharp tips. There are 27 to 53 rings arranged in the axial direction. The drill can be set to different lengths and diameters according to clinical needs. The front end of the drill bit is provided with a central positioning structure or a chamfer design to improve the drilling stability. The drill bit is integrally formed by using medical stainless steel and is subjected to surface treatment, so that the drill bit has excellent corrosion resistance and mechanical strength. The connecting handle of the drill is a standard quick clamping interface, which is convenient for use in cooperation with an implant machine or a turbine mobile phone. The drill of the application can promote the release of osteogenic factors and the regeneration of bone tissue while cutting bones, and improves the operation efficiency and the success rate of implantation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, in particular to a cylindrical drill with a thorn tip used in oral implantation and plastic surgery. Background Art

[0002] With the advancement of dental implant technology and periodontal regenerative medicine, the requirements for minimally invasive bone tissue treatment, healing promotion, and implant stability in the surgical area are increasing. Traditionally, bone treatment with instruments such as scoops, bone rasps, lasers, or osteotome tools is used for alveolar socket shaping, implant preparation, and periodontal debridement. However, these tools have limitations, such as insufficient cutting precision, poor irritation, unsatisfactory biological response, and significant trauma.

[0003] In view of this, how to provide a new type of medical device drill that can effectively cut hard bone and activate tissue regeneration mechanism to improve the success rate and healing quality of implant or periodontal treatment has become a technical problem that needs to be solved urgently in existing technologies. Summary of the Invention

[0004] A technical problem to be solved by the embodiments of the present invention is how to provide a medical device drill with a new structure that can not only effectively cut hard bone but also activate tissue regeneration mechanisms to solve the problems existing in the prior art.

[0005] In a first aspect, the present application provides a cylindrical drill with a barbed tip, comprising: a cylindrical drill bit and a connecting handle coaxially arranged with the cylindrical drill bit,

[0006] Among them, the cylindrical outer surface of the cylindrical drill bit is provided with multiple annularly arranged thorn tips along the axial direction for realizing cutting or bone disturbance functions, and is used for processing the inner wall of the alveolar socket, periodontal bone wall, and the inside of the bionic implant cavity; it is also used for micro-cutting of hard bone, promoting blood outflow, growth factor secretion, and osteoblast crawling out.

[0007] The cylindrical drill bit is a cylindrical structure with a diameter of 2.60 to 5.60 mm;

[0008] The thorn tips are cone-shaped with a bottom diameter of 0.4-0.60 mm and a height of 0.7-0.90 mm. 12-19 thorn tips are arranged in a single circle, and the axial direction spacing of the cone center axis between two adjacent circles of thorn tips is set to the size of the bottom diameter;

[0009] The ratio of the height of the thorn tip to the diameter of the cylindrical drill bit is between 7% and 25%;

[0010] The thorn tips of the upper and lower circles are staggered along the axial direction of the cylindrical body of the cylindrical drill bit. The thorn tips of the upper and lower circles are staggered in a spiral manner along the axial direction of the drill bit. The spiral arrangement angle of the thorn tips of the upper and lower circles is 30-45 degrees.

[0011] 27-53 circles of burrs are arranged along the axial direction of the cylindrical body of the cylindrical drill bit.

[0012] In combination with the first aspect, in a possible implementation, the thorn tip is a cone with a bottom diameter of 0.50 mm and a height of 0.80 mm.

[0013] There are 15 spikes in a single circle.

[0014] The axial spacing between the center axes of the cones of two adjacent circles of thorn tips is 0.50 mm.

[0015] In combination with the first aspect, in a possible implementation, the method includes: the length of the cylindrical drill with the barbed tip is H1, wherein 25.00 mm ≤ H1 ≤ 45.00 mm;

[0016] The length of the connecting handle is H2, and the diameter is D2, wherein 15.00mm≤H2≤25.00mm, and 2.00mm≤D2≤2.50mm.

[0017] In combination with the first aspect, in a possible implementation, the cylindrical drill bit with a barbed tip has a length H1 of 41 mm, a length H2 of the connecting handle of 20 mm, and 40 circles of barbed tips are arranged along the axial direction of the cylindrical body of the cylindrical drill bit.

[0018] In combination with the first aspect, in a possible implementation, the cylindrical drill bit with a barbed tip has a length H1 of 33 mm, a length H2 of the connecting handle of 16 mm, and 32 circles of barbed tips are arranged along the axial direction of the cylindrical body of the cylindrical drill bit.

[0019] In combination with the first aspect, in a possible implementation, the front end tip of the cylindrical drill bit is provided with a central positioning structure or a chamfered structure for enhancing the initial stability of drilling.

[0020] In combination with the first aspect, in a possible implementation, the manufacturing accuracy of the cylindrical drill with a barbed tip is controlled within ±0.05 mm.

[0021] In combination with the first aspect, in a possible implementation, the ratio of the height of the thorn tip to the diameter of the cylindrical drill bit is 1 to 3.

[0022] In combination with the first aspect, in a possible embodiment, the thorn tip is used for treating the inner wall of the alveolar socket, the periodontal bone wall, and the inside of the bionic implant cavity; it is also used for micro-cutting hard bone to promote blood outflow, growth factor secretion, and osteoblast crawling out.

[0023] In combination with the first aspect, in a possible embodiment, the connection handle is provided with a positioning groove or a plug-in component for accurately docking with the dental surgical equipment;

[0024] In combination with the first aspect, in a possible implementation, the cylindrical drill bit and the connecting handle are made of medical stainless steel in one piece, and the surface is vacuum heat treated and plasma electrolytically polished to improve corrosion resistance and high strength.

[0025] In combination with the first aspect, in a possible implementation, the connecting handle is a quick-connect handle with a diameter of 2.35 mm, and the length of the slot of the quick-connect handle is 2.70 mm, which is used to cooperate with a standard dental implant machine and a periodontal turbine handpiece.

[0026] This application can make slight cuts in the surgical area while preserving the integrity of the bone bed, making the hard inner wall of the extraction socket, periodontal bone wall, and bionic implant cavity wall soft, promoting blood outflow, stimulating the secretion of growth factors and the crawling of osteoblasts, and promoting the healing of the surgical area.

[0027] 1. Micro-cutting of the inner wall of the extraction socket: The flowing blood can form a protective layer on the dry inner wall of the extraction socket, reducing the incidence of "dry socket" after tooth extraction.

[0028] 2. Micro-cutting of periodontal bone wall surface: The micro-cut bone surface rich in blood, growth factors, and osteoblasts and the implantation of autologous bone mud inside the bone surface are more rapid in bone remodeling and have better periodontal regeneration effect than bone grafting on untreated hard and dry bone surface.

[0029] 3. Micro-cutting of the inner wall of the bionic implant cavity: The soft inner wall of the cavity rich in blood, growth factors, and osteoblasts after micro-cutting treatment is more likely to form a strong bone bond with the surface of the bionic implant.

[0030] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0032] The present invention can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0033] Figure 1 、2 A structural diagram showing a cylindrical drilling tool with a barbed tip according to one embodiment of the present invention;

[0034] Figure 3 A side view of a cylindrical drill with a barbed tip according to one embodiment of the present invention is shown;

[0035] Figure 4 、 5 A structural diagram showing a cylindrical drilling tool with a barbed tip according to another embodiment of the present invention;

[0036] Figure 6 A side view of a cylindrical drill with a barbed tip is shown according to another embodiment of the present invention. DETAILED DESCRIPTION

[0037] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0038] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0039] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0040] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0041] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0042] Figure 1 、 2 A structural diagram of a cylindrical drill with a barbed tip according to an embodiment of the present invention is shown. Figure 3 A side view of a cylindrical drill with a barbed tip according to one embodiment of the present invention is shown; Figure 4 、 5 A structural diagram showing a cylindrical drill with a barbed tip according to another embodiment of the present invention is shown. Figure 6 A side view of a cylindrical drill with a spike tip according to another embodiment of the present invention is shown. Figure 1-6As shown, the cylindrical drilling tool with thorn tips includes a cylindrical drill bit 11 and a connecting handle 12 coaxially arranged with the cylindrical drill bit 11, wherein the cylindrical outer surface of the cylindrical drill bit 11 is provided with a plurality of annularly arranged thorn tips 13 along the axial direction, and the thorn tips 13 are cone-shaped thorn tips 13 with a bottom diameter of 0.4-0.60 mm and a height of 0.70-0.90. 12-19 thorn tips 13 are arranged in a single circle, and the axial direction spacing of the cone center axis between two adjacent circles of thorn tips 13 is set to the size of the bottom diameter. The thorn tips 13 of the upper and lower circles along the axial direction of the cylindrical body of the cylindrical drill bit 11 are staggered; 27-53 circles of thorn tips 13 are arranged along the axial direction of the cylindrical body of the cylindrical drill bit 11.

[0043] In one embodiment, the length of the cylindrical drill with a barbed tip is H1, wherein 25.00 mm ≤ H1 ≤ 45.00 mm; the length of the connecting handle 12 is H2, and the diameter is D2, wherein 15.00 mm ≤ H2 ≤ 25.00 mm, and 2.00 mm ≤ D2 ≤ 2.50 mm.

[0044] In one embodiment, the length H1 of the cylindrical drill with thorn tips is 41 mm, the length H2 of the connecting handle 12 is 20 mm, and 40 circles of thorn tips 13 are arranged along the axial direction of the cylindrical body of the cylindrical drill bit 11 .

[0045] In one embodiment, the length H1 of the cylindrical drill with thorn tips is 33 mm, the length H2 of the connecting handle 12 is 16 mm, and 32 circles of thorn tips 13 are arranged along the axial direction of the cylindrical body of the cylindrical drill bit 11 .

[0046] In one embodiment, the cylindrical drill bit 11 has a total length of 41 mm, of which the cylindrical drill bit 11 is 33 mm long. The connecting shank 12 is 20 mm long and has a diameter of 2.35 mm. The connecting shank 12 is compatible with common dental surgical equipment (such as dental implant machines and periodontal turbines) and can be precisely connected to the equipment through a quick-connect mechanism.

[0047] In one embodiment, the cylindrical outer surface of the cylindrical drill bit 11 is provided with a plurality of annular spikes 13 arranged axially. Each spike 13 is shaped like a cone with a base diameter of 0.50 mm and a height of 0.80 mm. A single circle of 15 spikes 13 is provided, and the axial spacing between the cone center axes of two adjacent circles of spikes 13 is 0.50 mm. Forty circles of spikes 13 are arranged axially along the cylindrical body of the cylindrical drill bit 11, with the spikes in the upper and lower circles staggered. This design enables the drill to produce more uniform and effective stimulation of bone tissue during operation.

[0048] The cylindrical drill with spikes provided by the present invention can, in practical applications, be effective in cutting, stimulating, and debriding bone within the alveolar socket, periodontal surgical area, and implant cavity walls. This design promotes wound healing by stimulating growth factor secretion and osteoblast migration. This drill provides precise bone stimulation during surgery, promoting bone regeneration and healing. Furthermore, the staggered arrangement of the upper and lower rings of spikes improves cutting efficiency during drilling and avoids tissue damage caused by excessive friction.

[0049] In one embodiment, the upper and lower circles of spikes are staggered in a spiral manner along the axial direction of the drill bit, and the spiral arrangement angle of the upper and lower circles of spikes is 30-45 degrees. Figure 4 As shown, the spike tips 13 can be arranged in a spiral shape along the axial direction of the cylindrical drill bit 11, and the angle of each spike tip 13 is designed to be 30°-45°. Preferably, the spiral arrangement angle of the spike tips in the upper and lower circles is 45°. Through this spiral staggered arrangement, the spike tips 13 can generate a certain rotational force during the cutting process, effectively reducing the resistance of the bone tissue and improving the efficiency of the operation. This embodiment proposes a spiral spike tip 13 design, which makes the spike tips 13 arranged in a spiral shape along the axial direction of the cylindrical drill bit 11, rather than the traditional single-circle annular arrangement. The angle of each spike tip 13 is designed to be 30°-45°. Through this spiral arrangement, the spike tips 13 can generate a certain rotational force during the micro-cutting process, effectively reducing the resistance of the bone tissue and improving the efficiency of the operation.

[0050] In one embodiment, the overall shape of the thorn tip 13 of the cylindrical drill tool is a compound angle design, that is, thorn tips 13 with different cone angles are used before two adjacent circles, or the front half of the cylindrical drill bit 11 uses a thorn tip 13 with a relatively small cone angle to facilitate cutting, and the back half uses a thorn tip 13 with a relatively large cone angle. The tip part is provided with cutting surfaces at different angles. This asymmetric thorn tip 13 structure can make it easier for the drill bit to cut bones during operation, thereby improving cutting efficiency.

[0051] In one embodiment, an antibacterial nano-coating, such as a silver ion coating, is added to the drill bit surface, combined with super-hydrophobic surface technology to provide a self-cleaning function. After each use, the coating automatically prevents bacterial attachment, reducing the risk of postoperative infection.

[0052] In one embodiment, a drill bit with a spike tip 13 having different conical angles can be configured. This can be selected based on different surgical requirements, allowing the drill bit to adapt to bone tissue of varying hardness, providing more precise cutting and stimulation. The interchangeable angle design allows for flexible adjustment of cutting force based on specific surgical requirements, adapting to different bone types and clinical needs. This technical feature not only makes the drill tool highly adaptable but also provides greater operational flexibility, enabling precise adjustments based on clinical circumstances to optimize surgical outcomes.

[0053] In one embodiment, the front shoulder of the cylindrical drill with a barbed tip is designed with a central positioning structure to enhance the drill's stability and accuracy during initial contact with bone tissue. This guiding structure, located at the center of the drill tip and featuring a tapered or chamfered design, is designed to ensure the drill maintains stability during penetration into bone tissue and prevent the drill from drifting or deflecting during initial contact. Specifically, the central positioning structure on the front shoulder comprises a guide tip with a gradually decreasing diameter, which can be conical or chamfered. At the drill tip, the guide structure has an angle of approximately 90° to 170°, with its length adjusted appropriately based on the overall length of the drill. The precisely designed angle of this guide structure ensures smooth entry of the drill into bone, reducing vibration and instability during the drilling process. The central positioning structure provides initial guidance and stability, ensuring smooth advancement of the drill through bone tissue and preventing unnecessary tissue damage or surgical errors caused by deviation or wobbling of the drill. Especially when performing delicate operations such as minimally invasive dental implants, the guide structure can ensure that the drill bit is correctly positioned in the initial stage of entering the hole, thereby providing a stable starting point for the subsequent cutting process.

[0054] In one embodiment, the manufacturing accuracy of the cylindrical drill with a spike is controlled within ±0.05 mm. This precision standard is intended to ensure that the drill bit maintains extremely high accuracy and consistency during use. To achieve this precision, high-precision CNC machining technology and precision grinding processes are used in the manufacturing process of the drill. Each spike 13 of the drill, the spacing between the spikes 13, and the connection position between the connecting handle 12 and the drill bit are strictly numerically calculated and adjusted. In particular, the size and arrangement of the spikes 13 are required to be controlled within the range of ±0.05 mm, avoiding problems such as uneven cutting or drill bit instability caused by minor errors, thereby ensuring the efficient and safe use of the drill.

[0055] In one embodiment, the cylindrical drill head with a barbed tip features a cylindrical structure with a diameter of 2.6 to 5.60 mm. This diameter range is suitable for most conventional dental implant procedures and provides ideal results for bone cutting, cleaning, and stimulation within the alveolar socket, periodontal surgical area, and implant cavity walls. The drill's cylindrical structure ensures high stability during operation and enables precise bone processing, making it particularly suitable for bone cleaning, bone stimulation, and healing guidance in minimally invasive surgery.

[0056] In one embodiment, the ratio of the height of the thorn tip to the diameter of the cylindrical drill bit is between 7% and 25%; and the ratio of the height of the thorn tip to the diameter of the cylindrical drill bit is 1 to 3.

[0057] In one embodiment, the thorn tip 13 of the drill bit adopts a conical design with a bottom diameter of 0.50 mm and a height of 0.80 mm. The number and arrangement of the thorn tips 13 can effectively stimulate bone tissue, promote the secretion of growth factors and the migration of osteoblasts, thereby accelerating the bone healing process, especially when performing bone trimming on the inner wall of the alveolar socket and the periodontal surgical area, it can improve the bone regeneration ability and promote tissue healing.

[0058] In one embodiment, the connecting handle 12 is designed with a positioning slot or plug-in structure, enabling precise docking with various dental surgical instruments. This design allows the drill to be easily connected to standard dental implant machines and periodontal handpieces, ensuring stability during surgery. The precise design of the connecting components ensures a tight connection between the devices, avoiding operational errors caused by unstable connections.

[0059] In one embodiment, the cylindrical drill bit 11 and connecting shank 12 are integrally manufactured from medical stainless steel or titanium alloy. These materials exhibit excellent biocompatibility, corrosion resistance, and high strength, making them suitable for prolonged use in the oral environment. Furthermore, the drill bit surface undergoes vacuum heat treatment and plasma electrolytic polishing. These surface treatments effectively enhance the drill bit's corrosion resistance and hardness, reduce wear after long-term use, and ensure the drill's stability and durability under various clinical conditions.

[0060] In one embodiment, the connecting handle 12 is designed as a quick-connect handle with a diameter of 2.35 mm and a slot length of 2.70 mm. This design enables fast and secure docking with standard dental implant machines and periodontal turbines. This quick-connect system allows surgeons to quickly change drill tools without wasting time adjusting the connection, thereby improving surgical efficiency.

[0061] The cylindrical drill tool with barbed tips of the present invention has a precisely designed conical shape of the barbed tips. The axial spacing between two adjacent circles of barbed tips is the size of their bottom diameters. The staggered arrangement increases the contact area between the cutting surface and the bone tissue, and can effectively achieve bone surface cleaning, bone stimulation and healing guidance. In particular, during the bone cutting process of the inner wall of the alveolar socket, the periodontal surgery area and the inner wall of the implant cavity, it effectively promotes the secretion of growth factors and the migration of osteoblasts, thereby accelerating bone healing.

[0062] The present invention provides an implant surgery drill bit with a bone tissue micro-cutting function, specifically a drill bit that performs slight cutting on the surgical area, making the hard inner wall of the tooth extraction socket, periodontal bone wall, and bionic implant cavity wall soft, promoting blood outflow, stimulating the secretion of growth factors and the crawling out of osteoblasts, and promoting the healing of the surgical area.

[0063] The present invention achieves "edge disturbance, micro-cutting, and promoted healing" through a unique structure, effectively solving clinical problems such as insufficient cutting accuracy, poor stimulation, unsatisfactory biological response effects, and greater trauma of traditional digging spoons, bone files, lasers, or bone knives.

[0064] The present invention uses tapered spikes evenly distributed on the surface of a cylindrical drill to shallowly disturb and micro-cut the inner wall of hard bone, forming an active surface layer that promotes growth. It can be used in the following three types of intraoperative clinical scenarios:

[0065] 1. Micro-cutting of the inner wall of the extraction socket: The flowing blood can form a protective layer on the dry inner wall of the extraction socket, reducing the incidence of "dry socket" after tooth extraction.

[0066] 2. Micro-cutting of periodontal bone wall surface: The micro-cut bone surface rich in blood, growth factors, and osteoblasts and the implantation of autologous bone mud inside the bone surface are more rapid in bone remodeling and have better periodontal regeneration effect than bone grafting on untreated hard and dry bone surface.

[0067] 3. Micro-cutting of the inner wall of the bionic implant cavity: The soft inner wall of the cavity rich in blood, growth factors, and osteoblasts after micro-cutting treatment is more likely to form a strong bone bond with the surface of the bionic implant.

[0068] This invention has the specific function of "softening" hard bone, which is of great significance for the placement of bionic implants. It can significantly improve the success rate of bionic implants. This invention can also be used for the preparation of hard bone extraction sockets and hard bone periodontal areas, promoting better healing of the surgical area.

[0069] Each embodiment in this specification is described in a progressive manner, with each embodiment focusing on its differences from the other embodiments. References to the same or similar parts between the various embodiments are sufficient. For system embodiments, since they largely correspond to method embodiments, their description is relatively simple. For relevant parts, references to the description of the method embodiments are sufficient.

[0070] The method and system of the present invention may be implemented in many ways. For example, the method and system of the present invention may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above sequence of steps for the method is for illustration only, and the steps of the method of the present invention are not limited to the sequence specifically described above, unless otherwise specified. In addition, in some embodiments, the present invention may also be implemented as a program recorded in a recording medium, which includes machine-readable instructions for implementing the method according to the present invention. Thus, the present invention also covers recording media that store programs for executing the method according to the present invention.

[0071] The description of the present invention has been presented for purposes of illustration and description and is not intended to be exhaustive or to limit the invention to the form disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as are suited for specific applications.

Claims

1. A cylindrical drill with a spike tip, characterized in that: include: A cylindrical drill bit and a connecting shank coaxially arranged with the cylindrical drill bit, The cylindrical outer surface of the cylindrical drill bit is provided with a plurality of annularly arranged spikes along the axial direction for achieving cutting or bone disturbance functions, and is used for processing the inner wall of the alveolar socket, the periodontal bone wall, and the interior of the bionic implant cavity; it is also used for micro-cutting hard bone to promote blood outflow, secretion of growth factors, and climbing out of osteoblasts; The cylindrical drill bit is a cylindrical structure with a diameter of 2.60 to 5.60 mm; The thorn tips are cone-shaped with a bottom diameter of 0.4-0.60 mm and a height of 0.7-0.90 mm. 12-19 thorn tips are arranged in a single circle, and the axial direction spacing of the cone center axis between two adjacent circles of thorn tips is set to the size of the bottom diameter; The ratio of the height of the thorn tip to the diameter of the cylindrical drill bit is between 7% and 25%; The thorn tips of the upper and lower circles are staggered along the axial direction of the cylindrical body of the cylindrical drill bit. The thorn tips of the upper and lower circles are staggered in a spiral manner along the axial direction of the drill bit. The spiral arrangement angle of the thorn tips of the upper and lower circles is 30-45 degrees. 27-53 circles of burrs are arranged along the axial direction of the cylindrical body of the cylindrical drill bit.

2. The cylindrical drill with a barbed tip according to claim 1, characterized in that: include: The thorn tip is a cone with a bottom diameter of 0.50 mm and a height of 0.80 mm. There are 15 spikes in a single circle. The axial spacing between the center axes of the cones of two adjacent circles of thorn tips is 0.50 mm.

3. The cylindrical drill with a barbed tip according to claim 1, characterized in that: include: The length of the cylindrical drill with a barbed tip is H1, where 25.00 mm ≤ H1 ≤ 45.00 mm; The length of the connecting handle is H2, and the diameter is D2, wherein 15.00mm≤H2≤25.00mm, and 2.00mm≤D2≤2.50mm.

4. The cylindrical drill with a barbed tip according to claim 3, characterized in that: include: The length H1 of the cylindrical drill with a barbed tip is 41 mm, the length H2 of the connecting handle is 20 mm, and 40 circles of barbed tips are arranged along the axial direction of the cylindrical body of the cylindrical drill bit.

5. The cylindrical drill with a barbed tip according to claim 3, characterized in that: include: The length H1 of the cylindrical drill with a barbed tip is 33 mm, the length H2 of the connecting handle is 16 mm, and 32 circles of barbed tips are arranged along the axial direction of the cylindrical body of the cylindrical drill bit.

6. The cylindrical drill with a barbed tip according to claim 3, characterized in that: include: The front end tip of the cylindrical drill bit is provided with a central positioning structure or a chamfer structure for enhancing the initial stability of drilling.

7. The cylindrical drill with a barbed tip according to claim 3, characterized in that: include: The manufacturing accuracy of the cylindrical drill with a barbed tip is controlled within ±0.05mm.

8. The cylindrical drill with a barbed tip according to claim 1, characterized in that: include: The ratio of the height of the thorn tip to the diameter of the cylindrical drill bit is 1 to 3.

9. The cylindrical drill with a barbed tip according to claim 1, characterized in that: include: The upper and lower circles of thorn tips are staggered in a spiral manner along the axial direction of the drill bit, and the spiral arrangement angle of the upper and lower circles of thorn tips is 45 degrees.

10. The cylindrical drill with a barbed tip according to claim 1, characterized in that: include: The connecting handle is provided with a positioning groove or a plug-in component for precise docking with the dental surgical equipment; and / or The cylindrical drill bit and the connecting handle are made of medical stainless steel in one piece, and the surface is vacuum heat treated and plasma electrolytic polished to improve corrosion resistance and high strength; and / or The connecting handle is a quick-connect handle with a diameter of 2.35 mm. The length of the slot of the quick-connect handle is 2.70 mm, and is used to cooperate with a standard dental implant machine and a periodontal turbine handpiece.

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