Integrated screw tap with good sharpness

Abstract

The utility model provides an integrated screw tap with good sharpness, which comprises a main body integrally connected with a cutter handle. A tooth blade is spirally arranged on the main body in the axis direction, a conical guide part is arranged at one end, far away from the cutter handle, of the main body, a guide blade is spirally arranged on the guide part in the axis direction, and the guide blade and the tooth blade are integrally and spirally arranged. The guiding blade extends from the guiding part to the cutter handle along a tower-shaped spiral line. The main body is provided with a chip groove, and the chip groove extends towards the main body along the guide part. And the side wall of the chip groove is provided with a cutting edge. The cutting edges are formed on the side walls of the chip grooves, the screw tap sharpness is improved, bones are cut through the cutting edges, cuttings are discharged from the chip grooves, meanwhile, the tooth edges are arranged on the outer side of the main body, drilling and tapping are completed through one-time operation, and the medical efficiency is improved. The guide edge is arranged to guide the tooth edge to cut the bone, so that the drilling precision is improved, and the positioning precision of the implant tooth is improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical cutting tool technology, specifically relating to an integrated tap with good sharpness. Background Technology

[0002] With advancements in medical technology, dental implants have become increasingly popular due to their superior chewing ability, excellent bite force, realistic appearance, good biocompatibility, long lifespan, and high comfort. Traditional dental implant surgery involves preparing an implant socket in the alveolar bone and using a tap to create a thread within the socket. This allows the implant to be screwed into the alveolar bone and achieve good initial stability, laying the foundation for subsequent osseointegration and long-term use. This tapping process requires pre-drilling holes with a pilot drill before tapping, making the procedure complex and impacting surgical efficiency.

[0003] Therefore, the above problems urgently need to be solved. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, this utility model provides an integrated tap with good sharpness, which can directly perform drilling and tapping without the need to use a pilot drill to prepare pre-processed holes, shortening surgical steps and improving medical efficiency.

[0005] Technical Solution: To achieve the above objectives, this utility model provides a one-piece tap with good sharpness, comprising a main body and a handle integrally connected to the main body. The main body has a spirally arranged cutting edge along its axial direction. A guide portion is located at the end of the main body away from the handle, and the guide portion is conical in shape. A guide blade is spirally arranged along the axial direction of the guide portion, and the guide blade and the cutting edge are integrally spirally arranged. The guide blade extends from the guide portion towards the handle along a tower-shaped spiral line. The main body has a chip removal groove that extends along the guide portion towards the main body. The sidewall of the chip removal groove is a cutting edge. In using this utility model, the handle needs to be connected to a dental drill handpiece. The dental drill handpiece is set to a suitable speed, the guide portion is aligned with the location of the dental implant, and the dental drill handpiece is started. The guide blade begins to drill in. Because the guide blade extends in a tower-shaped spiral line, it guides the main body in. The sidewall of the chip removal groove on the main body forms a cutting edge, cutting the surrounding bone to create a pre-drilled hole, forming a thread. When drilling to a certain depth, the dental drill handpiece rotates in the reverse direction, and the tap retracts. This invention features a chip removal groove in the main body, with cutting edges formed on the sidewalls of the groove to improve the sharpness of the tap. The bone is cut using these cutting edges, and the chips are discharged from the groove. Simultaneously, a toothed cutting edge is provided on the outer side of the main body, allowing drilling and tapping to be completed in a single operation, shortening the operation steps and improving medical efficiency. A guiding edge is also included to guide the cutting edge in cutting the bone, improving drilling accuracy, preventing pre-drilled hole deviation, and enhancing the positioning accuracy of the dental implant.

[0006] Furthermore, in the aforementioned integrated tap with good sharpness, there is one chip removal groove, and the angle between the extension line of the chip removal groove and the main body axis is set at 0°-5°. Setting a smaller number of chip removal grooves and a smaller angle can improve the structural strength of the tap, and the chip removal groove set at a certain angle can promptly remove the bone chips generated during cutting, avoiding the accumulation of bone chips and affecting heat dissipation.

[0007] Furthermore, in the aforementioned one-piece tap with good sharpness, the end of the shank furthest from the main body has an annular groove, with one or more such grooves. These grooves serve as depth control indicators, helping doctors precisely control the drilling depth and avoid damage to surrounding tissues.

[0008] Furthermore, in the aforementioned high-sharpness integrated tap, the bottom of the annular groove is coated with color. Different colors are used to mark different drilling depths, helping to control the drilling depth.

[0009] Furthermore, in the aforementioned integrated tap with good sharpness, in order to improve the mechanical strength of the tap and ensure chip removal effect, the distance between the bottom of the chip removal groove and the main body axis is set to 0.1-0.3mm.

[0010] Furthermore, in the aforementioned one-piece tap with good sharpness, the body and handle are heat-treated to improve the surface hardness and toughness of the tap.

[0011] Furthermore, in the aforementioned one-piece tap with good sharpness, in order to increase the friction between the tap and the dental drill handpiece and prevent the tap from slipping, a mounting groove is provided at the end of the handle away from the main body, and the mounting grooves are symmetrically arranged on both sides of the handle axis.

[0012] As can be seen from the above technical solution, this utility model has the following beneficial effects: The integrated tap with good sharpness features a chip removal groove on the main body, with a cutting edge formed on the side wall of the chip removal groove, improving the tap's sharpness. The cutting edge formed on the side wall of the chip removal groove cuts the bone, and the chips are discharged from the chip removal groove. Simultaneously, a tooth cutting edge is provided on the outer side of the main body, allowing drilling and tapping to be completed in one operation, shortening the operation steps and improving medical efficiency. A guiding edge is provided to guide the tooth cutting edge to cut the bone, improving drilling accuracy, avoiding pre-drilled hole deviation, and improving the positioning accuracy of dental implants. Attached Figure Description

[0013] Figure 1 This is a front view of the one-piece tap with good sharpness according to this utility model;

[0014] Figure 2 This is a top view of the one-piece tap with good sharpness according to this utility model.

[0015] In the diagram: 1. Main body, 11. Tooth cutting edge, 12. Guide section, 121. Guide cutting edge, 13. Chip removal groove, 2. Tool holder, 21. Ring groove, 22. Mounting groove. Detailed Implementation

[0016] Example 1

[0017] like Figure 1-2 The diagram shows a high-sharpness, one-piece tap, comprising a main body 1, with a handle 2 integrally connected to the main body 1. A cutting edge 11 is spirally arranged along the axial direction of the main body 1. A guide portion 12, conical in shape, is located at the end of the main body 1 away from the handle 2. A guide blade 121, also conical in shape, is spirally arranged along the axial direction of the guide portion 12. The guide blade 121 and the cutting edge 11 are integrally spirally arranged. The guide blade 121 extends from the guide portion 12 towards the handle 2 along a tower-shaped spiral line. The main body 1 has a chip removal groove 13, extending along the guide portion 12 towards the main body 1. The sidewall of the chip removal groove 13 is a cutting edge. There is one chip removal groove 13, and the angle between the extension line of the chip removal groove 13 and the axis of the main body 1 is 0°-5°. An annular groove 21, one or more, is located at the end of the handle 2 away from the main body 1. The annular groove 21 serves as a depth control indicator, helping the dentist to precisely control the drilling depth. The bottom of the annular groove 21 is colored. Different colors are used to mark different drilling depths in the annular groove 21 to help control the drilling depth. The distance between the bottom of the chip removal groove 13 and the axis of the main body 1 is set to 0.1-0.3mm. The main body 1 and the tool holder 2 are heat treated. In order to increase the friction between the tap and the drill handpiece and prevent the tap from slipping, the tool holder 2 has a mounting groove 22 at the end away from the main body 1, and the mounting grooves 22 are symmetrically arranged on both sides of the axis of the tool holder 2.

[0018] In using this invention, the handle 2 needs to be connected to the dental drill handpiece. The dental drill handpiece is set to a suitable rotation speed. The guide part 12 is aligned with the location of the dental implant, and the dental drill handpiece is started. The guide blade 121 begins to drill in. Because the guide blade 121 extends in a tower-shaped spiral, it guides the main body 1 into the hole. The sidewall of the chip removal groove 13 on the main body 1 forms a cutting edge. When cutting the surrounding bone to prepare the pre-hole, the cutting edge 11 cuts the surrounding bone to form a thread. When drilling to a certain depth, the dental drill handpiece rotates in the opposite direction, and the tap is withdrawn.

[0019] The above embodiments are exemplary and are intended to illustrate the technical concept and features of this utility model, so that those skilled in the art can understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A one-piece tap with good sharpness, characterized in that: The device includes a main body (1), which is integrally connected to a tool holder (2); the main body (1) is spirally provided with a cutting edge (11) along the axial direction, and the end of the main body (1) away from the tool holder (2) is provided with a guide part (12), which is conical in shape, and the guide part (12) is spirally provided with a guide blade (121) along the axial direction, and the guide blade (121) and the cutting edge (11) are spirally provided integrally; the guide blade (121) is provided to extend from the guide part (12) toward the tool holder (2) along a tower-shaped spiral line; the main body (1) is provided with a chip removal groove (13), which extends along the guide part (12) toward the main body (1), and the side wall of the chip removal groove (13) is provided with a cutting edge.

2. The one-piece tap with good sharpness according to claim 1, characterized in that: The chip removal groove (13) is set as one, and the extension line of the chip removal groove (13) and the axis of the main body (1) are set at an angle of 0°-5°.

3. The one-piece tap with good sharpness according to claim 1, characterized in that: The handle (2) has an annular groove (21) at the end away from the main body (1), and the annular groove (21) has one or more.

4. The one-piece tap with good sharpness according to claim 3, characterized in that: The bottom of the annular groove (21) is coated with color.

5. The one-piece tap with good sharpness according to claim 1, characterized in that: The distance between the bottom of the chip removal groove (13) and the axis of the main body (1) is set to 0.1-0.3mm.

6. The one-piece tap with good sharpness according to claim 1, characterized in that: The main body (1) and the handle (2) are subjected to heat treatment.

7. The one-piece tap with good sharpness according to claim 1, characterized in that: The handle (2) is provided with a mounting groove (22) at the end away from the main body (1), and the mounting groove (22) is symmetrically arranged on both sides of the axis of the handle (2).

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