CN210903432U

CN210903432U - Drill bit for dental implantation

Info

Publication number: CN210903432U
Application number: CN201921288266.5U
Authority: CN
Inventors: 郭威
Original assignee: Beijing Datsing Technology Co ltd
Current assignee: Beijing Datsing Technology Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-07-03
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a drill bit for planting tooth, include cutting part, neck and the stalk portion that connects gradually after to by preceding, the cutting part with the neck all includes that main part and circumference distribute and is in two at least margins in the main part, adjacent two form the chip groove between the margin, neck fixedly connected with ends the ring, it includes sleeve and fixed connection to end the ring-plate on the sleeve rear end outer wall, telescopic front end inner wall with the margin of neck contacts, telescopic rear end inner wall with be provided with the clearance between the stalk portion. The utility model has the advantages that: the stop ring is arranged on the drill bit, so that the drill bit can be quickly drilled, and the depth is accurate; the cutting part adopts the design of toper structure, can prevent that the drill bit from rocking and arousing the grow of drilling diameter, keeps aperture size unanimous.

Description

Drill bit for dental implantation

Technical Field

The utility model relates to a drill bit technical field particularly, relates to a drill bit for planting tooth.

Background

At present, the dentistry repairs the loss of the self-body tooth, and the implanted tooth, namely the fixed false tooth implanted in the bone, is an advanced mode. The so-called dental implant technique is to drill an implant hole on a patient's gum with a drill after the patient's tooth is lost, and then fix an artificial tooth in the implant hole.

The drilling depth of the existing dental implant drill bit is difficult to grasp when drilling, and manual observation can be only carried out in modes such as scale marks, so that the drilling time is long, and the efficiency is slow.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem among the correlation technique, the utility model provides a drill bit for planting tooth is provided with the end and stops the ring on it, can carry out quick drilling, and the degree of depth is accurate.

In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:

the utility model provides a drill bit for dental implantation, includes cutting part, neck and stalk portion that connects gradually after to by preceding, the cutting part with the neck all includes that main part and circumference distribute in two at least margins in the main part, adjacent two form the chip groove between the margin, neck fixedly connected with ends and stops the ring, it includes sleeve and fixed connection to end to stop the ring the crown plate on the sleeve rear end outer wall, telescopic front end inner wall with the margin of neck contacts, telescopic rear end inner wall with be provided with the clearance between the stalk portion.

Further, the front end of the cutting part is provided with a spherical surface.

Further, the diameter of the cutting part is gradually reduced from front to back.

Further, the diameter of the neck portion is larger than that of the rear end of the cutting portion, and a transition inclined plane is arranged between the blade zone of the neck portion and the blade zone of the cutting portion.

Further, the diameter of the handle is smaller than the diameter of the neck.

Furthermore, an annular bulge is arranged on the inner wall of the front end of the sleeve, and a groove matched with the annular bulge is formed in the cutting edge of the neck.

Further, the number of the blade zones is four.

The utility model has the advantages that: the stop ring is arranged on the drill bit, so that the drill bit can be quickly drilled, and the depth is accurate; the cutting part adopts the design of toper structure, can prevent that the drill bit from rocking and arousing the grow of drilling diameter, keeps aperture size unanimous.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of a dental implant drill according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a dental implant drill according to an embodiment of the present invention.

In the figure:

1. a handle; 2. a margin; 3. a sleeve; 4. a ring plate; 5. a gap; 6. and (4) a spherical surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

As shown in fig. 1-2, according to the embodiment of the present invention, a dental drill is provided, which comprises a cutting portion, a neck portion and a handle portion 1 connected in sequence from front to back, wherein the cutting portion and the neck portion all comprise a main body and at least two cutting edges 2 distributed on the main body, two adjacent cutting edges 2 form a chip discharge groove between the cutting edges 2, the neck portion is fixedly connected with a stop ring, the stop ring comprises a sleeve 3 and a ring plate 4 fixedly connected to the outer wall of the rear end of the sleeve 3, the inner wall of the front end of the sleeve 3 contacts with the cutting edges 2 of the neck portion, and a gap 5 is provided between the inner wall of the rear end of the sleeve 3 and the handle portion 1.

In a specific embodiment of the present invention, the front end of the cutting portion is provided with a spherical surface 6.

In a specific embodiment of the present invention, the diameter of the cutting portion is gradually reduced from front to back.

In a specific embodiment of the present invention, the diameter of the neck portion is larger than the diameter of the rear end of the cutting portion, and a transition inclined plane is provided between the land 2 of the neck portion and the land 2 of the cutting portion.

In a particular embodiment of the invention, the diameter of the handle 1 is smaller than the diameter of the neck.

In an embodiment of the present invention, the inner wall of the front end of the sleeve 3 is provided with an annular protrusion, and the blade 2 of the neck is provided with a groove matching with the annular protrusion.

In a particular embodiment of the invention, the number of said lands 2 is four.

For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention will be described in detail through specific use modes.

Implant for tooth drill bit wholly adopt stainless steel S42010 to make, its specification has phi 2.8 × 6mm, phi 2.8 × 7mm, phi 2.8 × 8mm, phi 2.8 × 9mm, phi 2.8 × 11mm, the planting for tooth drill bit of adjacent specification differs 1mm in length, the planting for tooth drill bit of changing different specifications can progressively carry out drilling depth and promote.

Implant drill bit include cutting portion, neck and stalk portion 1, cutting portion and neck all include main part and four margins 2, form the chip groove between two adjacent margins 2, the margin 2 of cutting portion and the margin 2 of neck are through the cooperation of transition inclined plane. The neck fixed connection stops the ring, and the fixed connection mode can adopt the welding, also can adopt the mode in this embodiment, and in this embodiment, stop and be provided with annular protruding on the ring, set up corresponding recess on the margin 2 of neck, can realize the installation in putting into the recess annular protruding.

The stop ring comprises a sleeve 3 and a ring plate 4, the front end of the sleeve 3 is located outside the neck, and the rear end of the sleeve 3 is located outside the handle 1. When the hole is drilled to a certain depth, the hole depth cannot be increased continuously because of the blocking effect of the ring plate 4. When the drill bit is used specifically, the drill bit for implanting the teeth with corresponding specifications is selected according to the depth of a hole to be drilled, so that the rapid drilling can be realized, and the depth is accurate.

The front end of the cutting part is a spherical surface 6, so that the cutting edge is arc-shaped, and the mucosa cannot be damaged when the hole is drilled on the side surface or the diaphragm.

The cutting portion adopts toper structural design, and the cutting portion is that the big rear end of front end is little, and the front end diameter is 2.8mm, and the rear end diameter is 2.7mm, and the benefit of design so is that the drill bit rocks the grow that arouses drilling diameter when can preventing to drill, keeps the aperture size unanimous.

Be provided with clearance 5 between sleeve 3's the rear end inner wall and the stalk portion 1, accessible clearance 5 carries out the water injection operation, and water can flow in the chip groove, cools down to planting tooth drill bit, and the condition such as osteonecrosis that leads to because of the high temperature when can effectively preventing to drill takes place. The chip grooves are used for discharging bone chips, so that the drilling is easier.

During the specific use, will plant the stalk portion 1 dress of dental drill on the rig, drill to the gum, after the crown plate 4 and the gum contact of stopping the ring, the hole depth can not continue to increase, and then can realize quick drilling, and the degree of depth is accurate.

In summary, with the above technical solution of the present invention, the stop ring is disposed thereon, so that rapid drilling can be performed, and the depth is accurate; the cutting part adopts the design of toper structure, can prevent that the drill bit from rocking and arousing the grow of drilling diameter, keeps aperture size unanimous.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a drill bit for planting tooth, includes cutting portion, neck and stalk portion (1) that connects gradually after to by preceding, its characterized in that, the cutting portion with the neck all includes that main part and circumference distribute in main part two at least margin (2), adjacent two form the chip groove between margin (2), neck fixedly connected with ends and stops the ring, it includes sleeve (3) and fixed connection to end to stop the ring crown plate (4) on sleeve (3) rear end outer wall, the front end inner wall of sleeve (3) with margin (2) of neck contact, the rear end inner wall of sleeve (3) with be provided with clearance (5) between stalk portion (1).

2. Dental implant drill according to claim 1, characterized in that the front end of the cutting portion is provided with a spherical surface (6).

3. The dental implant bit of claim 1, wherein the cutting portion tapers in diameter from anterior to posterior.

4. Dental implant drill according to claim 3, characterized in that the neck has a diameter which is larger than the diameter of the rear end of the cutting portion, and that a transition bevel is provided between the margin (2) of the neck and the margin (2) of the cutting portion.

5. Dental implant drill according to claim 1, characterized in that the diameter of the shank (1) is smaller than the diameter of the neck.

6. Dental implant drill according to claim 1, characterized in that the sleeve (3) is provided with an annular projection on the inner wall of its front end and a recess matching the annular projection is provided on the margin (2) of the neck.

7. Dental implant drill according to claim 1, characterized in that the number of margins (2) is four.