CN103006338B - Minimally invasive tooth implanting surgical drill - Google Patents

Abstract

A minimally invasive dental implant surgical drill, comprising a sequentially connected directional punching head, a first reaming section, a second reaming section, a main body reaming shaping section, a scale section and a locking section; the directional punching head is Conical structure; the first reaming section is a frustum-shaped structure, and the diameter of its small end is the same as the diameter of the cone bottom of the directional drilling head; the second reaming section is a circular cake-shaped structure, and its diameter is larger than that of the first reaming section The diameter of the large end; the main body reaming and shaping section is a spiral cylindrical structure, and its diameter is larger than the diameter of the second reaming section; the diameters of the scale section and the locking section are smaller than the diameter of the main body reaming and shaping section. The minimally invasive dental implant surgery drill of the present invention has the advantages of simple structure, convenience and practicality, simple manufacture, and few places for high-precision processing, which is beneficial to popularization of products, and bone chips can be used for bone transplantation.

Description

Minimally invasive dental implant surgery drill

technical field

The invention relates to medical instruments, in particular to a minimally invasive dental implant surgery drill.

Background technique

At present, the two-stage implant model characterized by incision and lifting of the periosteum is still the mainstream method of dental implant surgery at home and abroad. This kind of dental implant method needs alveolar mucoperiosteotomy. The intraoperative trauma is large, there is a lot of bleeding, and the vision is blurred. The operation time is long and the postoperative reaction is large. Minimally invasive dental implant technology allows doctors to perform precise surgery without having to cut the gums. Compared with the traditional flap implant surgery, the minimally invasive dental implant surgery combined with 3D computer scanning positioning technology or aimer positioning technology pays more attention to the protection of the lesion area and its surrounding tissues, minimizes trauma, avoids or Minimizing postoperative reactions, reducing the occurrence of complications, and shortening the treatment time can enable patients to recover as soon as possible and obtain a more ideal repair effect.

In minimally invasive dental implant technology, the process of drilling bone holes is particularly important. The direction, depth, diameter and bone density of the hole wall, cutting method and time required for drilling will directly affect the effect of minimally invasive dental implant surgery. Traditional drilling needs to use a pioneer drill to make a directional hole first, and then use a multi-stage reaming twist drill to ream the hole step by step. The procedure is more complicated and takes a long time. After changing the drill many times, it may cause surgical errors, and even lead to surgical failure in severe cases. . Therefore, it is very necessary to form the bone hole at one time. However, the area of direct contact between the traditional surgical drill and the hole wall is large, which requires many places for high-precision processing, which brings a lot of inconvenience to mass production. Finally, due to the existence of rib grooves in traditional surgical drills, the walls of the drilled bone holes are not very smooth, and cracks may occur in some places with different bone densities, which is also a major reason for poor surgical results.

Contents of the invention

The object of the present invention is to solve the above-mentioned problems in the prior art, and to provide a minimally invasive implant surgery drill capable of forming a bone hole at one time.

The object of the present invention is achieved in this way: a minimally invasive dental implant surgery drill, including sequentially connected directional drilling head, first reaming section, second reaming section, main body reaming shaping section, scale section and lock Tight section; the directional drilling head is a conical structure; the first reaming section is a frustum-shaped structure, and its small end diameter is the same as the diameter of the cone bottom of the directional drilling head; the second reaming section is a circular pie structure, Its diameter is greater than the diameter of the large end of the first reaming section; the main body reaming and shaping section is a spiral cylindrical structure, and its diameter is larger than the diameter of the second reaming section; the diameter of the scale section and the locking section is smaller than that of the main body reaming and shaping section diameter.

The first reaming section includes a cylinder arranged in the center and 4 conical petals axially connected to the cylinder, and bias layers are respectively provided on the outer sides of the 4 conical petals, and each bias layer The outer edges of the outer edges are respectively provided with cutting edges.

The second reaming section includes a round pie-shaped body, two arc-shaped grooves are oppositely arranged on the circumference of the round pie-shaped body, and two arc-shaped grooves are respectively arranged on the round pie-shaped body on the same direction side of the two arc-shaped grooves. There are offset layers, and each offset layer is respectively provided with a cutting edge facing the side edge of the arc-shaped groove.

Two helical grooves and two helical cylinders are provided on the reaming and shaping section of the main body, and the two helical grooves and the two helical cylinders are distributed symmetrically and alternately.

The inclination angle of the conical lobe on the first reaming section is 50-60 degrees, and the offset coefficient of the offset layer on the conical lobe is 0.15-0.25.

The offset coefficient of the offset layer on the second reaming section is 0.25-0.35.

The two arc-shaped grooves on the second reaming section are adapted to communicate with the two spiral grooves on the main body reaming and shaping section respectively.

The offset layer on the first reaming section, the offset layer on the second reaming section and the two spiral cylinders on the main body reaming shaping section are all coated with a layer of cobalt, and the blades of each offset layer The mouth part is cobalt-plated and sharpened a second time.

The minimally invasive dental implant surgery drill of the present invention has the following advantages and characteristics due to the adoption of the above technical scheme:

1. It can form a bone hole at one time, and the operation is simple, convenient and practical. Through directional drilling, first reaming, second reaming, and finally extrusion reaming to achieve the goal;

2. The offset layer of the first reaming section and the second reaming section makes the force concentrated, and the inclination angle γ of the conical lobe in the first reaming section minimizes the drilling force and makes the reaming process faster , and the formed bone hole is smoother than the traditional one; and the second edge of the offset layer is used as a cutting edge, which makes the hole reaming faster;

3. The setting of the directional drilling head and the two step-by-step reaming from small to large reduce the possibility of bone cracking during the operation, ensure the success rate of the operation, and make up for the shortcomings of one-time forming of the bone hole;

4. After the second reaming is completed, the spiral cylinder on the reaming section of the main body squeezes the bone wall to reach the required size of the bone hole, and makes the density of the bone hole wall larger and smoother than that of other places, which is beneficial to subsequent operations carry out;

5. Due to the existence of the offset layer at the cutting edge, the direct contact with the hole wall is limited to the directional punching head, the offset layer and the spiral cylinder. During production and processing, only these parts need to be coated with cobalt metal and processed with precision That is, a lot of labor is saved, which is beneficial to product promotion and mass production;

6. The combination of the scale part and the probe part makes it easier for the operator to grasp the progress of the operation and improve the success rate of the operation.

Description of drawings

Fig. 1 is the overall structure schematic diagram of minimally invasive dental implant surgery drill of the present invention;

Fig. 2 is a three-dimensional structural schematic diagram of a directional punching head in the present invention;

Fig. 3 is the schematic diagram of the three-dimensional structure of the first reaming section in the present invention;

Fig. 4 is the three-dimensional structure schematic diagram of the second reaming section among the present invention;

Fig. 5 is the schematic diagram of the three-dimensional structure of the main body reaming shaping section in the present invention;

Fig. 6 is a schematic diagram of a three-dimensional structure of a scale section in the present invention;

Fig. 7 is a schematic perspective view of the three-dimensional structure of the locking section in the present invention.

Detailed ways

Referring to Fig. 1, and referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, the minimally invasive dental implant surgery drill of the present invention includes sequentially connected directional perforating head 1, the first reaming section 2. The second reaming section 3, the main body reaming and shaping section 4, the scale section 5 and the locking section 6; the directional punching head 1 is a conical structure; the first reaming section 2 is a frustum-shaped structure, and its small end The diameter is the same as the diameter of the cone bottom of the directional punching head; the second reaming section 3 is a circular cake-shaped structure, and its diameter is slightly larger than the diameter of the large end of the first reaming section; the main body reaming and shaping section 4 is a spiral cylindrical structure , whose diameter is greater than the diameter of the second reaming section; the diameters of the scale section 5 and the locking section 6 are smaller than the diameter of the main body reaming shaping section.

Referring to Fig. 3, the first reaming section 2 in the present invention includes a cylinder 21 arranged in the center and four conical petals 22 axially connected to the cylinder, and the inclination angle of the conical petals 22 is 50- 60 degrees, the outer sides of the four conical petals are respectively provided with bias layers 23, the bias coefficient of the bias layers 23 is 0.15-0.25, and the outer edges of each bias layer are respectively provided with cutting edges 231.

With reference to Fig. 4, the second reaming section 3 in the present invention includes a circular pie-shaped body 31, and two arc-shaped grooves 32 are oppositely arranged on the circumference of the circular pie-shaped body, and in the same direction of the two arc-shaped grooves Bias layers 33 are respectively provided on the side circular pie-shaped bodies, and the bias coefficients of the bias layers are 0.25-0.35. Each offset layer is respectively provided with a cutting edge 331 facing one side edge of the arc-shaped groove. The two arc-shaped grooves 32 on the second reaming section are adapted to communicate with the two helical grooves 51 on the main body reaming shaping section 5 respectively.

With reference to Fig. 5, two spiral grooves 51 and two spiral cylinders 52 are arranged on the main body reaming and shaping section in the present invention, and the two spiral grooves and two spiral cylinders are symmetrically and alternately distributed.

In the present invention, the offset layer 23 on the first reaming section 2, the offset layer 33 on the second reaming section 3 and the two spiral cylinders 52 on the main body reaming section 4 are all coated with a layer of cobalt, And the cutting edge of each bias layer is plated with cobalt and then sharpened for the second time.

Compared with the traditional drill bit, the minimally invasive dental implant surgery drill of the present invention greatly shortens the operation time through one-time forming, has a simpler structure, easier cutting, higher success rate, and less places required for finishing, which is conducive to popularization and mass production , while the quality of the bone hole is higher, and the drilling depth can be visualized to ensure the accuracy of the direction.

Claims (4)

1. Wicresoft's tooth implantation surgical drill, is characterized in that: comprise orientation punching head, the first reaming section, the second reaming section, main body reaming sizing section, scale section and locking section that order is arranged; Directed punching head is conical structure; First reaming section is taper type structure, and the cone bottom diameter of its end diameter and the directed head that punches is identical; Second reaming section is patty structure, and its diameter is greater than the outside diameter of the first reaming section; Main body reaming sizing section is spiral cylinder body structure, and its diameter is greater than the diameter of the second reaming section; The diameter of scale section and locking section is less than the diameter of main body reaming sizing section;

The cylinder that the first described reaming section comprises the center of being arranged on and 4 conical lobes be axially connected on this cylinder, the both sides, outside of 4 conical lobes are respectively equipped with bias layer, and the outer ledge of each bias layer is respectively equipped with cutting edge;

The second described reaming section comprises a patty body, is circumferentially relatively provided with two arcuate grooves at patty body, and the patty body of two arcuate grooves is respectively equipped with bias layer, and each bias layer is respectively equipped with cutting edge towards arcuate groove one lateral edges.

2. Wicresoft according to claim 1 tooth implantation surgical drill, is characterized in that: described main body reaming sizing section is provided with two helicla flutes and two spiral cylinders.

3. Wicresoft according to claim 2 tooth implantation surgical drill, is characterized in that: two helicla flute adaptations that two arcuate grooves in described second reaming section are shaped with described main body reaming in section are respectively communicated with.

4. Wicresoft according to claim 2 tooth implantation surgical drill, it is characterized in that: two spiral cylinders in the bias layer in the first described reaming section, the bias layer in the second reaming section and main body reaming sizing section are all coated with one deck cobalt, and after the cutting edge portion cobalt plating of each bias layer, secondary puts the first edge on a knife or a pair of scissors.