Tip edge-free side cutting drill

Abstract

The side cutting drill without the cutting edge at the tip end comprises a standard handle of an oral implanting drill bit, a cutting edge is arranged at the front end of the standard handle of the oral implanting drill bit, a chip removal groove is formed in the cutting edge, and no cutting edge is arranged at the top end of the front portion of the cutting edge. The device is simple in structure and can be realized as follows: under the condition that the bottom of the planting hole is not changed, a doctor can axially adjust the inclined planting hole by cutting the hole wall of the middle upper section of the planting hole.

Description

Technical Field

[0001] The utility model relates to the technical field of oral implantation, in particular to a side cutting drill without a blade at the tip. Background Art

[0002] The oral implant side cutting drill is a common drill used by doctors and is an essential tool for adjusting the axial direction of the implant cavity 5. The first drill for oral implant is very important, as it determines the axial direction of the implant cavity 5. In clinical practice, doctors may make the first drill crooked for some reason, resulting in the axial direction of the prepared implant cavity 5 not being ideal. In this case, the side cutting drill is needed to adjust the axial direction of the implant cavity 5.

[0003] Sometimes in clinical practice, doctors need to keep the bottom of the implant cavity unchanged and only want to adjust the middle and upper part of the implant cavity 5. (That is, the fixed point on the top surface of the alveolar ridge has deviated and needs to be adjusted, but the bottom position of the implant cavity is ideal and does not want to change. Figure 2 )

[0004] The entire working end of the traditional oral implant side cutting drill has a cutting edge. When it is used to adjust the axial direction of the implant cavity 5, the entire cavity wall of the implant cavity 5 from the bottom to the mouth will be changed, but the doctor does not want to change the bottom of the implant cavity, so the traditional oral implant side cutting drill cannot meet the doctor's requirements in this case. Utility Model Content

[0005] The tip-less side-cutting drill provided by the utility model has a simple structure, is convenient for correcting the axial direction of the implantation cavity, and is beneficial to the implantation of teeth.

[0006] In order to achieve the above purpose, the technical means adopted by the utility model are as follows:

[0007] The invention discloses a side-cutting drill without an edge at a tip, comprising a standard handle for an oral implant drill bit, wherein a cutting edge is arranged at the front end of the standard handle for an oral implant drill bit, a chip removal groove is arranged at the cutting edge, and there is no cutting edge at the front top of the cutting edge.

[0008] Furthermore, the front top of the cutting edge is an ellipsoidal surface.

[0009] The utility model has the following advantages:

[0010] The utility model provides a side-cutting drill without a cutting edge, including a standard handle for an oral implant drill, a cutting edge is arranged at the front end of the standard handle for an oral implant drill, a chip removal groove is arranged at the cutting edge, and there is no cutting edge at the front top of the cutting edge. The structure is simple, and there is no cutting edge at the front top of the cutting edge, which is convenient for adjusting only the hole wall in the middle and upper part of the implant cavity, while ensuring that the bottom of the implant cavity is not changed, which is conducive to adjusting the axial direction of the implant cavity. Without changing the bottom of the implant cavity, the doctor can adjust the axial direction of the crooked implant cavity by cutting the hole wall in the middle and upper part of the implant cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a schematic diagram of the main structure of an embodiment of the utility model.

[0013] Figure 2 This is a schematic diagram of the structure of the crooked implant cavity according to an embodiment of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of a crooked implant cavity after correction according to an embodiment of the utility model.

[0015] In the figure: 1. Standard handle of oral implant drill, 2. Cutting edge, 3. Convex spherical surface, 4. Alveolar bone, 5. Implant cavity. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Example 1

[0018] like Figure 1 As shown, the side-cutting drill with a tip without an edge comprises a standard handle 1 for an oral implant drill, the front end of which is provided with a cutting edge 2, a chip removal groove is provided at the cutting edge 2, and there is no cutting edge at the front top of the cutting edge 2. It should be noted that in this embodiment, by not having a cutting edge at the front top of the cutting edge 2 of the drill, that is, the cutting edge at the front drill tip of the drill is cancelled, it will not cut the bottom of the implant cavity during operation, ensuring that the position of the bottom of the implant cavity does not change, and only the cutting edge 2 is used to perform lateral cutting adjustment on the middle and upper wall of the implant cavity 5. The design is reasonable, ensuring that the doctor can adjust the deviated implant cavity to the ideal axial direction, thereby ensuring that the tooth is implanted in the ideal direction.

[0019] In one preferred embodiment, the front top of the cutting edge 2 is an ellipsoidal surface 3. The long semi-axis corresponding to the ellipsoidal surface 3 is coaxial with the central axis of the body 1, so that the guide tip edgeless side cutting drill slides along the implant cavity (produced by the first drill of the oral implant doctor, and the doctor finds that the upper part of the implant cavity has deviation but the bottom position of the implant cavity is ideal) to the bottom of the implant cavity.

[0020] In one preferred embodiment, in order to facilitate implant cavity correction, facilitate chip removal, and improve correction accuracy, three chip removal grooves are evenly distributed on the circumference of the cutting edge 2. It should be noted that the number of grooves of the cutting edge 2 in other embodiments can be selected according to actual needs, and can be two or four grooves.

[0021] During the implant surgery, the doctor will first use the thinnest drill (mostly a 2.0mm diameter twist drill) to prepare the implant cavity on the alveolar bone 4, and the subsequent implant drills will gradually expand along the axis of this implant cavity until the ideal diameter is reached. If the doctor confirms that the implant cavity formed by the first drill has such an axial deviation - the bottom of the implant cavity is in the correct position, but the implant cavity opening on the surface of the alveolar bone has a deviation (either toward the buccal or lingual direction, or toward the mesial or distal direction), then Figure 2 Use a side-cutting drill without a cutting edge to make adjustments. The drill bit slides along the implant cavity formed by the first drill to the bottom of the channel. Since there is no cutting edge at the top of the front of the cutting edge, the bottom of the implant cavity will not be changed during the rotation of the drill bit. Only the middle and upper wall of the implant cavity will be cut by the cutting edge, so that the axial direction of the implant cavity is consistent with the doctor's expectations. Figure 3 .

[0022] That is, the tip-less side-cutting drill can meet the needs of doctors. The tip of the tip-less side-cutting drill has no cutting edge, so it cannot change the bottom of the implant cavity, but it can cut the middle and upper walls of the implant cavity laterally. By adjusting the middle and upper walls of the implant cavity, the axial direction of the implant cavity can be adjusted to the ideal direction, such as Figure 3 The doctor then continues to use the shaping drills from various brands of implant tool boxes to gradually expand the diameter of the adjusted implant cavity until the implant surgery is completed.

[0023] It should be noted that the parts not described in detail in the present invention are prior art.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited. Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. Tipless side-cutting drill, characterized by: It comprises a standard drill shank, the front end of which is provided with a cutting edge, the cutting edge is provided with a chip removal groove, the front top of the cutting edge has no cutting edge, and the front top of the cutting edge is an ellipsoidal surface.

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