阅读说明：本技术 穿颧种植定位钻 (Cheekbone-penetrating planting positioning drill ) 是由 邹多宏 高振华 杨驰 陆海霞 张志愿 于 2020-05-06 设计创作，主要内容包括：本发明提供一种穿颧种植定位钻,包括相连的钻体(1)与钻柄(2),所述钻体(1)上设有两个刃瓣(12)和两个螺旋槽(13),两个所述刃瓣(12)呈螺旋状沿所述钻体(1)的周圈设置,所述钻体(1)的钻尖(11)为无横刃的尖端；所述刃瓣(12)自钻尖端依次设置若干直径递增的阶梯段以形成带阶梯的侧向切削刃(14)。本申请中钻体的钻尖能够有助于定位,便于在进行穿颧牙种植时,顺利穿破颧骨外表面的皮质骨,避免打滑；而定位钻孔工作时,具有阶梯的侧向刃瓣和螺旋槽结构能够利于整个定位钻的稳定,以按照设定方向和路径穿透上颌窦上壁较致密斜坡形成质骨穹窿,避免种植口发生偏移。(The invention provides a cheekbone planting positioning drill which comprises a drill body (1) and a drill handle (2) which are connected, wherein the drill body (1) is provided with two blade lobes (12) and two spiral grooves (13), the two blade lobes (12) are spirally arranged along the periphery of the drill body (1), and a drill tip (11) of the drill body (1) is a tip without a chisel edge; the land (12) is provided with a plurality of stepped sections with increasing diameters in sequence from the drilling tip to form a stepped lateral cutting edge (14). The drill tip of the drill body can be helpful for positioning, so that the drill body can conveniently puncture cortical bones on the outer surfaces of cheekbones when cheekbones are planted, and the drill body is prevented from slipping; and when the positioning drilling works, the lateral cutting edge with the step and the spiral groove structure can be beneficial to the stability of the whole positioning drill so as to penetrate through a compact slope on the upper wall of the maxillary sinus according to a set direction and a set path to form a bone vault and avoid the deviation of a planting opening.)

1. A cheekbone-passing planting positioning drill comprises a drill body (1) and a drill handle (2) which are connected, and is characterized in that the drill body (1) is provided with two blade lobes (12) and two spiral grooves (13), the two blade lobes (12) are spirally arranged along the periphery of the drill body (1), and a drill tip (11) of the drill body (1) is a tip without a chisel edge; the land (12) is provided with a plurality of stepped sections with increasing diameters in sequence from the drilling tip to form a stepped lateral cutting edge (14).

2. The zygomatic implantation positioning drill according to claim 1, wherein the length of the spiral groove (13) is 13-28 mm; and/or the drill body is a mark area (16) from the tail end of the blade to the end close to the drill handle, and the length of the mark area (16) is 10-40 mm; and/or the length of the drill handle (2) is 10-16 mm.

3. The zygomatic implantation positioning drill according to claim 1, wherein the cutting land (12) comprises a first step, a second step and a third step of successively increasing diameter from the drill tip; and/or the length of the drill tip (11) is 0.2-0.8 mm.

4. The zygomatic planting positioning drill according to claim 1, wherein the width of the cutting land (12) of the drill body (1) is 0.5-7 mm; and/or two lands located at the same cross-section of the drill body are of the same width; and/or the land width gradually decreases in the direction close to the drill point in the same step section.

5. The zygomatic implantation positioning drill according to claim 1, wherein the helix angle of the drill body (1) is 30-60 °.

6. The zygomatic implantation positioning drill according to claim 1, wherein a transition round table (15) is provided between two adjacent step sections, and the slope of the transition round table is 30-60 ° with respect to the central axis of the drill body (1).

7. The zygomatic planting positioning drill according to claim 2, wherein the identification region (2) is provided with a plurality of scale marks (17), and the scale marks (17) are used for identifying the distance from one end of the drill tip (11) of the zygomatic planting positioning drill.

8. The zygomatic implantation positioning drill according to claim 3, wherein the diameter d of the first step is₁1.5-2.5 mm; and/or the diameter d of the second step₂2.5-3 mm; and/or the diameter d of the third step₃2.8-3.5 mm; and/or the width b of the first step land is 0.5-2 mm; and/or the width of the second stepped edge land is 1-5 mm; and/or the width of the third step land is 2-7 mm.

9. The zygomatic implant positioning drill of claim 3 or 4, wherein the length of the first step L₁5-10 mm and/or the length of the second step L₂5-10 mm and/or the length L of the third step₃2-5 mm.

10. The zygomatic implantation positioning drill according to claim 7, wherein the scale markings (17) are marking lines and/or marking grooves of different colors.

Technical Field

The invention relates to the field of dental implantation, in particular to a zygomatic puncture implantation positioning drill.

Background

The cheekbone-passing implanting operation has become a mature, effective and high-success-rate treatment scheme for repairing the missing teeth after decades of development.

The zygomatic implant is a dental implant implanted in the zygomatic bone and is mainly applied to patients with severe bone defects or atrophy in the posterior dental area of the maxilla. Its main advantages are no need of bone grafting operation, short treating period, and long service life (3 months).

The zygomatic implant is generally accessed from the palatal side of the alveolar ridge, along the direction of the zygomatic alveolar ridge, through the maxillary sinus or the bone wall on the buccal side of the maxillary sinus, and finally drilled into the zygomatic bone. The final aim of the zygomatic implant is to effectively fix the implant on the zygomatic bone, the treatment operation fully utilizes the zygomatic bone with compact maxillofacial part to fix the implant, and reasonably disperses the resultant force of the prosthesis. In addition, in the restoration of the goose complex body after the jaw bone is removed, the zygomatic bone is implanted into the implant, so that good retention is provided for the maxillofacial prosthesis.

Therefore, zygomatic implants can effectively address problems in certain situations and are therefore more and more trusted by physicians.

However, the technique has high sensitivity, is easy to cause direction deviation to cause serious complications, and has the main reason that when the maxillary sinus penetrates into a cheekbone, the maxillary sinus upper wall is a compact slope and is easy to slip off to cause direction and position deviation.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a zygomatic implantation positioning drill, which is used for solving the problem of difficult zygomatic positioning in the zygomatic implantation process in the prior art.

To achieve the above objects and other related objects, the present invention is achieved by the following technical solutions.

The application provides a cheekbone-passing planting positioning drill, which comprises a drill body and a drill handle which are connected, wherein the drill body is provided with two blade lobes and two spiral grooves, the two blade lobes are spirally arranged along the periphery of the drill body, and the drill point of the drill body is a tip without a chisel edge; the cutting land is provided with a plurality of stepped sections with gradually increased diameters from the drilling tip end in sequence so as to form a side cutting edge with steps.

According to the zygomatic planting positioning drill, the length of the spiral groove is 13-28 mm.

According to the cheekbone planting positioning drill, the drill body is a mark area from the tail end of the blade to the end close to the drill handle, and the length of the mark area is 10-40 mm.

According to the zygomatic planting positioning drill, the length of the drill handle is 10-16 mm.

According to the cheekbone planting positioning drill, the blade valve comprises a first step section, a second step section and a third step section, wherein the diameters of the first step section, the second step section and the third step section are sequentially increased from the drill tip.

According to the zygomatic planting positioning drill, the length of the drill tip is 0.2-0.8 mm.

According to the zygomatic planting positioning drill, the width of the cutting edge of the drill body is 0.5-7 mm.

According to the zygomatic planting positioning drill, the two blade lands positioned on the same cross section of the drill body have the same width.

According to the zygomatic planting positioning drill, the width of the blade flap is gradually reduced along the direction close to the drill tip in the same step section.

According to the zygomatic planting positioning drill, the width b of the cutting edge at the first step is 0.5-2 mm; the width of the second step section edge land is 1-5 mm, and the width of the third step section edge land is 2-7 mm.

According to the zygomatic planting positioning drill, the spiral angle of the drill body is 30-60 degrees.

According to the zygomatic puncture planting positioning drill, the transition round table is arranged between two adjacent step sections, and the gradient of the transition round table is 30-60 degrees on the basis of the central shaft of the drill body.

According to the zygomatic puncture planting positioning drill, the identification area is provided with a plurality of scale marks, and the scale marks are used for marking the distance from one end of the drill tip of the zygomatic puncture planting positioning drill.

According to the zygomatic planting positioning drill, the diameter d of the first step section₁1.5-2.5 mm; and/or the diameter d of the second step₂2.5-3 mm; and/or the diameter d of the third step₃2.8-3.5 mm.

The zygomatic planting positioning drill has the length L of the first step₁5-10 mm and/or the length of the second step L₂5-10 mm and/or the length L of the third step₃2-5 mm.

The zygomatic planting positioning drill is characterized in that the scale marks are mark lines and/or mark grooves with different colors.

As mentioned above, the zygomatic planting positioning drill has the following beneficial effects:

the drill tip of the drill body of the zygomatic implanting positioning drill can be beneficial to positioning, so that the drill body can conveniently and smoothly pierce cortical bone on the outer surface of the zygomatic bone and avoid slipping when zygomatic implanting is carried out; and when the positioning drilling works, the blade and the spiral groove structure with the stepped lateral cutting edge can be beneficial to the stability of the whole positioning drill so as to penetrate through a compact slope on the upper wall of the maxillary sinus according to a set direction and a set path to form a bone vault and avoid the deviation of a planting opening.

Drawings

FIG. 1 is a schematic view showing one of the structures of the zygomatic implantation positioning drill of the present invention, wherein FIG. 1a) is a short drill, and FIG. 1b) is a long drill

FIG. 2 is a second schematic view of the zygomatic implantation positioning drill according to the present invention

FIG. 3 is a schematic view of the drill body structure of the zygomatic implantation positioning drill of the present invention

FIG. 4 is a third schematic view showing the structure of the zygomatic implantation positioning drill of the present invention

FIG. 5 is a schematic view of a partial structure of the zygomatic implantation positioning drill according to the present invention

FIG. 6 is a second view of the local structure of the zygomatic implantation positioning drill of the present invention

FIG. 7 is a schematic view showing a third partial structure of the zygomatic implantation positioning drill according to the present invention

Description of reference numerals in fig. 1 to 7

1 drill body

11 drill point

12-edge land

13 helical groove

14 lateral cutting edge

15 transition round table

16 sign area

17 graduation mark

2 drill handle

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 7. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

As shown in figures 1 and 7, the invention provides a zygomatic planting positioning drill, which comprises a drill body 1 and a drill handle 2 which are connected, wherein the drill body 1 is provided with two blade lobes 12 and two spiral grooves 13, the two blade lobes 12 are spirally arranged along the periphery of the drill body 1, and a drill tip 11 of the drill body 1 is a tip without a chisel edge; the land 12 is provided with a plurality of stepped sections of increasing diameter in sequence from the drilling tip to form a stepped lateral cutting edge 14.

In the present application, the drill body 1 refers to: the cheekbone is planted the working part of the positioning drill.

In the application, the drill handle 2 refers to a part of the zygomatic planting positioning drill for clamping and is used for transmitting power required by drilling, such as torque and axial force.

In this application, a helical groove refers to a helical groove in the drill body 1.

In this application, the drill tip, which may also be referred to as the drill point, undertakes the primary cutting task.

The land in this application refers to the part of the outer rim of the drill body 1 where no helical groove is cut.

At present, the columnar drill body without the step section is clinically applied, the side cutting function is not realized, heat is generated greatly in the using process, the swing is obvious, the controlled implantation site and the cavity are difficult to prepare accurately in the clinical operation, and the ideal initial stability of the dental implant is not favorably obtained.

The drill point 11 of the drill body 1 of the zygomatic implanting positioning drill in the embodiment of the application is designed without a chisel edge, but is converged into a sharp angle, so that the positioning is facilitated, the cortical bone on the outer surface of the zygomatic bone can be smoothly pierced when the zygomatic implanting is carried out, and the slippage is avoided; and during the work of the positioning drilling, the lateral cutting edge and the spiral groove are beneficial to the stability of the whole positioning drill, so that the bone vault can be formed by penetrating the compact slope on the upper wall of the maxillary sinus according to the set direction and the set path, and the deviation of the planting opening is avoided. In this application embodiment, bore 1 and divide into a plurality of ladder section, do benefit to the tooth and plant the progressively deep of boring the body when the nest is equipped with the hole, can play the effect of stable boring the body simultaneously, avoid the osteonecrosis that the heat production caused, improve patient's comfort.

In a more specific embodiment, the helical groove of the outer surface of the drill body 1 is clockwise or counter-clockwise. When the spiral groove is clockwise, the zygomatic grafting planting positioning drill has cutting capability when rotating clockwise and has no cutting capability when rotating anticlockwise in the use process; when the spiral structure is anticlockwise, the zygomatic implanting positioning drill has cutting capacity when rotating anticlockwise and does not have cutting capacity when rotating clockwise. Both fig. 1 and 2 are clockwise helical structures.

In a preferred embodiment as shown in fig. 4, the length a of the spiral groove 13 is 13 to 28mm, preferably 20 to 25mm, such as 20mm, 21mm, 22mm, 23mm, 24mm and 25 mm. In a more preferred embodiment, the length a of the helical groove is 23 mm.

In a preferred embodiment, the drill body is a mark zone 16 from the tail end of the blade to the end close to the drill handle, and the length of the mark zone 16 is 10-40 mm. Such as 10mm, 15mm, 20mm, 25mm, 30mm, 35mm and 40 mm. In the particular embodiment shown in fig. 1a), the length of the marking zone 16 is 15mm, thereby forming a shorter zygomatic implant positioning drill. In the specific embodiment as shown in fig. 1b), the length of the identification area 16 is 25mm, thereby forming a longer zygomatic implant positioning drill.

In a more preferred embodiment, a plurality of scale marks 17 are arranged on the mark area 16, and the scale marks 17 are used for marking the distance from one end of the drill tip 11 of the zygomatic planting positioning drill.

In a more preferred embodiment, the graduation marks 17 are marking lines and/or marking grooves of different colors. As shown in fig. 1, the scale mark 17 is a mark groove using mark lines coated with different colors.

The number of the scale marks 17 can be determined according to the length of the mark area 16 and the use requirement. In a more specific embodiment as shown in fig. 1a), the marking zone 16 is short, and two calibration marking lines are provided on the marking zone 16, wherein one is a white marking line which is 20mm away from one end of the drill tip of the zygomatic implantation positioning drill, and the other is a yellow marking line which is 30mm away from one end of the drill tip of the zygomatic implantation positioning drill. In a more specific embodiment as shown in fig. 1b), the marking zone 16 is longer, and four calibration marking lines are provided on the marking zone 16, which are sequentially a white marking line 20mm from one end of the drill tip of the zygomatic planting positioning drill, a yellow marking line 30mm from one end of the drill tip of the zygomatic planting positioning drill, a red marking line 35mm from one end of the drill tip of the zygomatic planting positioning drill, and a blue marking line 40mm from one end of the drill tip of the zygomatic planting positioning drill. The design of the scale mark lines is beneficial to doctors and other users to well observe the depth of the drill when the drill is used for positioning in the process of zygomatic tooth threading implantation operation, so that the problem that the drill body damages other important anatomical structures due to over depth and serious complications are caused is avoided. In addition, according to the depth of design tooth planting before the art, when using this to bore, through observing scale identification area, can effectively observe and compare whether reach the design requirement before the art, this scale region plays the effect of a dipperstick.

In a preferred embodiment, the drill shank 2 has a length of 10 to 16mm, preferably 12 to 16mm, such as may be 12mm, 13mm, 14mm, 15mm and 16 mm. In this application the diameter that drillstock 3 is international unified standard is 2.2 ~ 2.5mm machine buckle structure. In a more specific embodiment, as shown in fig. 1, the drill shank 2 has a length of 14.5 mm.

In a preferred embodiment, the land 12 comprises, from the drill point, a first step, a second step and a third step of increasing diameter in that order. As shown in fig. 1 and 2.

In a preferred embodiment as shown in fig. 4, the diameter d of the first step is₁Is 1.5 to 2.5 mm. In a more specific embodiment, d₁Is 2 mm.

In a preferred embodiment as shown in fig. 4, the diameter d of the second step section₂2.5-3 mm. In a more specific embodiment, d₂Is 2.5 mm.

In a preferred embodiment as shown in fig. 4, the diameter d of the third step₃2.8-3.5 mm. In a more specific embodiment, d₃Is 3 mm.

In a preferred embodiment as shown in FIG. 4, the length L of the first step₁5 to 10mm in a more specific embodiment, L₁Is 8 mm.

In a preferred embodiment as shown in FIG. 4, the length L of the second step section₂5 to 10mm in a more specific embodiment, L₂Is 7.5 mm.

In a preferred embodiment as shown in FIG. 4, the length L of the third step₃2 to 5mm in a more specific embodiment, L₃Is 4 mm.

The diameter and length of each step section are designed specifically according to the use in the zygomatic operation of a human body during the dental implantation operation, and the design accords with the bone characteristics of the zygomatic bone position during the dental implantation operation.

In a preferred embodiment, the length of the drill tip 11 is 0.2 to 0.8 mm. Such as 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm or 0.8 mm. In the particular embodiment of fig. 1, the drill tip 11 has a length of 0.5 mm.

In a preferred embodiment as shown in fig. 2 and 5, the land width b of the drill body 1 is 0.5 to 7 mm.

In this application, two lands located on the same cross-section of the drill body are of the same width.

In this application, the land width decreases in a step in a direction toward the drill tip.

In the present application, the land width means: the length between the land edge, i.e., the secondary cutting edge, and the land tail root edge, measured perpendicular to the land edge, i.e., the secondary cutting edge. The tail root edge refers to the intersecting edge line of the blade back and the spiral groove on the blade. In a more preferred embodiment, the first step land width b is 0.5 to 2 mm; the width of the second step section edge land is 1-5 mm, and the width of the third step section edge land is 2-7 mm.

In a preferred embodiment, as shown in fig. 7, the helix angle α of the drill body 1 is 30-60 °.

In a preferred embodiment as shown in fig. 6, a transition truncated cone 15 is arranged between two adjacent step sections, and the slope β of the transition truncated cone is 30-60 degrees with respect to the central axis of the drill body 1, and in the embodiment shown in fig. 1-4, the slope β of the transition truncated cone is 45 degrees.

Through the structure of above-mentioned transition round platform in this application embodiment for the smooth and smooth transition of ladder section has reduced the resistance of being equipped with the hole in-process location and has bored, has also avoided because complication such as osteonecrosis that a large amount of heats formation.

After the zygomatic implanting positioning drill in the embodiment is used for positioning, the shape that the bottom opening is large and the tip opening is small is beneficial to the application of the first-step expanding drill after the hole is prepared. The drill has good stability during working, so as to penetrate through a denser slope on the upper wall of the maxillary sinus according to a set direction and a set path to form a bone vault and avoid the deviation of an implantation opening; the method can greatly improve the dental implantation efficiency, can also be used for step type extremely poor prepared holes for other conventional dental implantation, is beneficial to the initial stability of dental implants, and can enable patients to obtain dental restoration as soon as possible.

The use method of the zygomatic implanting positioning drill comprises the following steps:

placing the zygomatic planting positioning drill in the V-II-V planting tool box, and sterilizing for clinical use.

The clinical application is as follows:

1. performing general anesthesia according to zygomatic bone implantation, determining an implantation site, and performing flap turning and maxillary sinus treatment;

determining the three-dimensional direction of the zygomatic bone implant: according to the implant site, the primary preparation of maxillary sinus floor alveolar ridge crest is completed by using a conventional implant drill needle with the diameter of 2.8mm, a zygomatic implant detector is used for detecting and indicating the entrance site of the zygomatic base part, the zygomatic implant positioning drill is used, the tip of the zygomatic implant positioning drill is placed at the entrance site of the zygomatic base part by windowing or slotting the maxillary sinus from the implant site of the alveolar ridge, after the three-dimensional position is confirmed to be correct according to the preoperative design scheme, ZAGA classification relation and facial anatomical signs, the stable cheekbone planting positioning drill is lightly pressurized and the foot control switch is stepped on under the condition of sufficient water cooling and soft tissue protection, namely, the reliable sharp drill tip 11 and the lateral cutting edges 14 distributed in a step mode penetrate through cortical bone, the zygomatic bone body is continuously prepared for 3-5mm, the fixed point of the zygomatic bone base part is completed, the drilling speed is recommended to be 800-. According to preoperative design and zygomatic bone implant positioning mark points, base part positioning of single or double zygomatic bone implants can be completed.

2. And (3) three-dimensional direction confirmation:

withdrawing the cheekbone planting positioning drill, washing residual bone chips in a pore passage with saline water, judging the three-dimensional direction of the primarily prepared cheekbone planting body by matching with a cheekbone planting detector, if obvious implantation deviation or implantation risk exists, utilizing stronger side cutting capability of the cheekbone planting positioning drill, modifying and correcting the three-dimensional position of the cheekbone planting body by pulling the preparation according to clinical needs and facial anatomical positioning marks, and after confirming that no mistake is made, asking to continuously deepen about 3mm preparation according to the trimmed three-dimensional angle, thereby effectively avoiding secondary deviation of subsequent preparation holes, and if the length of the prepared holes is deepened to be less than 40mm, using the cheekbone planting positioning drill with the mark. If the zygomatic implant is basically consistent, further reaming and implant implantation are completed according to the zygomatic implant process.

3. Reaming and implant implantation:

after the three-dimensional positioning is finished, further reaming is carried out according to the flow, and the zygomatic bone implant is implanted.

After clinical use, the cleaning and disinfection kit is put in the tool box again for standby.

In conclusion, the zygomatic implantation positioning drill provided by the invention has sharp drill tip and side cutting edge, is beneficial to positioning and penetrating a compact slope-shaped cortical bone vault on the upper wall of the maxillary sinus, effectively avoids the generation of three-dimensional position deviation caused by slippage, and can provide effective guarantee for the correct implantation of the final zygomatic implant.

Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.