CN211796953U

CN211796953U - Planting cavity preparation drill bit

Info

Publication number: CN211796953U
Application number: CN202020150813.XU
Authority: CN
Inventors: 王利峰; 刘洪澎
Original assignee: Yake Wisdom Beijing Technology Co ltd
Current assignee: Yake Wisdom Beijing Technology Co ltd
Priority date: 2020-02-03
Filing date: 2020-02-03
Publication date: 2020-10-30
Anticipated expiration: 2030-02-03

Abstract

The utility model relates to the technical field of oral medical instruments, in particular to a planting pit preparation drill bit, which comprises a drilling tip part, a drilling body part and a chip removal part which are connected in sequence; the drill tip part is provided with a first cutting edge, the drill body part is a flat column body or a cone body, and the maximum width size of the drill tip part is not more than one third of the diameter of the chip removal part; the chip removal portion is provided with a chip removal groove. The planting cavity preparation drill bit of the utility model is provided with the drill tip part and the drill body part which are connected, thereby ensuring that the drill tip part has stronger drilling capability while being convenient for positioning; therefore, when the planting cavity preparation drill bit is used for preparing the planting cavity, the planting cavity preparation drill bits with different shapes are not needed to be applied in the positioning hole drilling stage and the guide hole drilling stage, the operation is more convenient and faster, and the purpose of improving the operation efficiency is achieved.

Description

Planting cavity preparation drill bit

Technical Field

The utility model relates to an oral medical instrument technical field especially relates to a plant nest hole preparation drill bit.

Background

Many factors in daily life cause tooth loss, and dental implants are becoming a popular method of repairing lost teeth as opposed to fixed and removable dentures. In the dental implant operation, in order to accurately prepare the implant cavity, a small ball drill or a three-edged drill is used for positioning on the bone surface; and reaming by using a pilot drill after positioning to determine the implantation direction of the implant. After the implant position and direction are determined, the implant cavity can be gradually enlarged by using a drill until a predetermined diameter is reached.

In order to drill a positioning and guiding hole on the bone surface of a patient, a drill bit is prepared by sequentially using planting holes with different shapes and specifications in the operation process, so that the operation efficiency is not high, and the bone tissue is damaged by excessive heat generated in the drilling and cutting process. Therefore, a convenient and fast planting cavity preparation drill bit is needed to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a convenient and fast, improve planting nest hole preparation drill bit of efficiency and security of planting the operation.

In order to solve the technical problem, the utility model provides a planting cavity preparation drill bit, which comprises a drilling tip part, a drilling body part and a chip removal part which are connected in sequence; the drill tip part is provided with a first cutting edge, the drill body part is a flat column body or a cone body, and the maximum width size of the drill tip part is not more than one third of the diameter of the chip removal part; the chip removal portion is provided with a chip removal groove.

In one embodiment, the drilling tip is a triangular blade.

In one embodiment, the drilling tip is a pyramid.

In one embodiment, the first cutting edge is at an angle of 80 ° to 120 ° to the axis of the planting cavity preparation drill bit.

In one embodiment, the drill body part is provided with a second cutting edge, and the included angle between the first cutting edge and the axis of the planting cavity preparation drill bit is larger than the included angle between the second cutting edge and the axis of the planting cavity preparation drill bit.

In one embodiment, a transition arc surface is arranged between the drill body part and the chip removal part.

In one embodiment, the flutes are helical in shape; the chip groove is totally two, two the direction of rotation of chip groove is the same.

In one embodiment, the chip ejection portion has a diameter greater than 3 mm.

In one embodiment, the chip removal portion is connected with a connecting handle, and the connecting handle is used for connecting a dental implant handpiece.

In one embodiment, a limiting section is arranged between the connecting handle and the chip removal part, and the diameter of the limiting section is larger than that of the chip removal part.

The utility model has the advantages that: because the planting cavity preparation drill bit of the utility model is provided with the drill point part and the drill body part which are connected, the drill body part is set to be a flat cylinder or a cone, and the width of the drill body part is set to be one third of the diameter of the chip removal part, the flat and sharp drill point part ensures that the drill point part has stronger drilling capability while being convenient for positioning; therefore, when the planting cavity preparation drill bit is used for preparing the planting cavity, the planting cavity preparation drill bits with different shapes are not needed to be applied in the positioning hole drilling stage and the guide hole drilling stage, the operation is more convenient and faster, and the purpose of improving the operation efficiency is achieved.

Drawings

Fig. 1 is a partial structural schematic diagram of a first embodiment of the present invention.

Fig. 2 is a perspective view of a second embodiment of the present invention.

Fig. 3 is a front view of fig. 2.

Fig. 4 is a schematic structural diagram of a third embodiment of the present invention.

Reference numerals: 1. drilling a tip part; 11. a first cutting edge; 2. a drill body part; 21. a second cutting edge; 22. a transition arc surface; 3. a chip removal part; 31. a chip groove; 4. a connecting handle; 5. a limiting section.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

As shown in fig. 1 to 3, the planting cavity preparation drill of the present invention comprises a drilling tip portion 1, a drilling body portion 2 and a chip removal portion 3 which are connected in sequence; the drilling tip part 1 is provided with a first cutting edge 11; the drill body part 2 is a flat column or a vertebral body; the maximum width dimension a of the drilling tip 1 is not more than one third of the diameter of the chip discharging part 3, and the chip discharging part 3 is provided with a chip discharging groove 31.

Because the planting cavity preparation drill bit of the utility model is provided with the drill point part 1 and the drill body part 2 which are connected, the drill body part 2 is arranged into a flat cylinder or a cone, and the width of the drill body part 2 is arranged to be more than one third of the diameter of the chip removal part 3, the flat and sharp drill point part ensures that the planting cavity preparation drill bit has stronger drilling capability while being convenient for positioning; therefore, when the planting cavity preparation drill bit is used for preparing the planting cavity, the planting cavity preparation drill bits with different shapes are not needed to be applied in the positioning hole drilling stage and the guide hole drilling stage, the operation is more convenient and faster, and the purpose of improving the operation efficiency is achieved.

In one embodiment, the width of the shank portion 2 does not exceed one third of the diameter of the chip ejection portion 3.

In one embodiment, as shown in fig. 1, the drill tip 1 is a triangular blade.

As shown in fig. 2 and 3, in one embodiment, the drill tip 1 is a pyramid. Specifically, the drilling tip portion 1 is a flat quadrangular pyramid. The planting cave hole preparation drill bit can be more stable when the bone face drilling location like this, is difficult to receive the yawing force influence off tracking, and then makes the guiding hole of drilling guiding hole stage preparation more accurate.

In one embodiment, the first cutting edge 11 is angled 80 ° to 120 ° from the axis of the planting cavity preparation drill.

As shown in fig. 1, in one embodiment the body portion 2 is provided with a second cutting edge 21, the first cutting edge 11 being at a greater angle to the axis of the planting cavity preparation drill than the second cutting edge. Because the angle of the first cutting edge 11 relative to the axis of the planting cavity preparation drill bit is larger, the stability of the first cutting edge 11 during punching is higher, and the drilling tool is suitable for punching positioning holes; the angle of the second cutting edge 21 relative to the axis of the planting cavity preparation drill bit is small, so that the efficiency of the pilot hole cutting stage is higher, and the pilot hole preparation drill bit is suitable for drilling a pilot hole; also, the smaller angle of the second cutting edge 21 facilitates guiding the direction of the chips.

In one embodiment, a transition arc surface 22 is arranged between the drill body part 2 and the chip discharging part 3. The provision of the transition curved surface 22 facilitates the direction of the chips.

As shown in fig. 4, in one embodiment, the flutes 31 are helical in shape; the number of the chip grooves 31 is two, and the rotation directions of the two chip grooves 31 are the same. The spiral chip grooves 31 are arranged to facilitate the discharge of bone tissue debris and heat during the positioning hole drilling stage and the guide hole drilling stage. The two chip removal grooves 31 with the same rotation direction are arranged in parallel, so that the probability of chip removal entering the chip removal grooves 31 is increased.

In one embodiment the chip ejection portion 3 has a diameter larger than 3 mm. Therefore, the use times of the drill bit for manufacturing the pits can be reduced in different specifications in the positioning hole drilling stage and the guide hole drilling stage, and the guide hole can be successfully manufactured once.

In one embodiment, the chip ejector 3 is connected with a connecting handle 4, and the connecting handle 4 is used for connecting a dental implant handpiece. Specifically, the tail end of the connecting handle 4 is a standard D-shaped connecting end of the planting mobile phone, and can be quickly inserted into a groove of the planting mobile phone for connection and fixation.

In one embodiment, a limiting section 5 is arranged between the connecting handle 4 and the chip discharging part 3, and the diameter of the limiting section 5 is larger than that of the chip discharging part 3.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A planting cavity preparation drill bit is characterized by comprising a drill bit part, a drill bit body part and a chip removal part which are sequentially connected; the drill tip part is provided with a first cutting edge, the drill body part is a flat column body or a cone body, and the maximum width size of the drill tip part is not more than one third of the diameter of the chip removal part; the chip removal portion is provided with a chip removal groove.

2. The planting pocket preparation drill bit of claim 1, wherein the drilling tip portion is a triangular blade.

3. The planting cavity preparation drill bit of claim 1, wherein the drilling tip is a pyramid.

4. The planting pocket preparation drill bit of claim 1, wherein the first cutting edge is at an angle of 80 ° to 120 ° to the axis of the planting pocket preparation drill bit.

5. The planting pocket preparation drill bit as claimed in claim 1, wherein the drill body portion is provided with a second cutting edge, and the angle between the first cutting edge and the axis of the planting pocket preparation drill bit is larger than the angle between the second cutting edge and the axis of the planting pocket preparation drill bit.

6. The planting pocket preparation drill bit as recited in any one of claims 1-5, characterized in that a transition arc surface is provided between the drilling body portion and the chip ejection portion.

7. The planting cavity preparation drill bit as recited in any one of claims 1-5, wherein the flutes are helically shaped; the chip groove is totally two, two the direction of rotation of chip groove is the same.

8. The planting pocket preparation drill bit of any one of claims 1-5, wherein the chip evacuation portion has a diameter greater than 3 mm.

9. The planting pocket preparation drill bit of any one of claims 1-5, wherein the chip evacuation portion is connected with a connection shank for connection with a dental implant handpiece.

10. The planting cavity preparation drill bit of claim 9, wherein a limiting section is disposed between the connecting shank and the chip removal portion, and the diameter of the limiting section is larger than that of the chip removal portion.