JP3106853U - Orthodontic screw device - Google Patents

Abstract

An orthodontic screw device is provided.
A flat base part 63 is connected to a screw part, the flat base part is detachably combined with a head part 62, and when the head part and the flat base part are combined, the head part is outside the flat base part. It is used to expose and lock the orthodontic spring 15. Since the head is removable, the user can design and operate various types of heads, and therefore different heads can be placed on the same flat platform, and applied to different orthodontic treatments. Moreover, although the manufacturing cost of such a screw device is low, it is easy to use and convenient. The screw portion gradually becomes thinner, and the screw thread of the screw portion is provided more densely in the first screw arrangement near the flat base than in the second screw arrangement separated from the flat base.
[Selection] Figure 3

Description

  The present invention relates to a kind of orthodontic screw device, and more particularly, to a screw device which is installed on a jaw bone and can directly position a spring for orthodontic jaw or receive an orthodontic wire.

  As shown in FIG. 1, in the conventional orthodontic treatment, a part of the jawbone 10 is removed by surgery, or any tooth 12 (usually canine) is extracted, and then the tooth 12 or the jawbone 10 is removed with the correction wire 13. It assists the healing of the jawbone 10 or the correction of the position of the tooth 12 after the pulling operation. In order to maintain the position of the correction wire 13 with respect to the tooth 12, a few correction support frames 14 are generally joined to the teeth 12, and each correction support frame 14 is provided with a special correction groove 141 to accommodate the correction wire 13. To do. The width and depth of the special correction ditch 141 need to be slightly larger than the diameter of the correction wire 13, so that the correction wire 13 can be slid along the extending direction of the special correction ditch 141 and the correction can be made. The wire 13 is prevented from falling off from the special correction groove 141.

  In order to provide a pulling force to the correction wire 13, conventionally, a screw 20 is fixed to the jawbone 10 in the vicinity of the molar tooth 121, and a spring 15 or a rubber band is connected between the screw 20 and the end of the correction wire 13 so as to pull an appropriate amount. Providing power. Such an orthodontic orthodontic spring 15 currently on the market is provided with a hook ring 151 at its end. For this reason, for the connection between the end of the spring 15 and the correction screw 13, the end of the correction wire 13 is bent to form a hook-like structure 131, whereby the hook ring 151 at the end of the spring 15 is hooked at the end of the correction wire 13. The connection between the two can be completed by locking the structure 131. The connection between the spring 15 and the screw 20 is more difficult than this.

  Patent Documents 1 and 2 describe two examples of the present inventor's work on orthodontic screws, which are convenient and favorable for clinical operation of such orthodontic screws. doing.

US Patent Publication No. US2003 / 0224315 A1 US Patent Publication No. US 2004/0023182 A1

  A main object of the present invention is to provide a kind of orthodontic screw device, which includes a screw portion, a flat base portion, and a head portion. The head is used to lock the orthodontic spring, and the head is exposed to the outside of the flat base and can be removed from the flat base. By making the head removable, the user can design and operate various types of heads, which can be combined with different heads on the same flat base, which can be applied to different orthodontic treatments It is. Moreover, although the manufacturing cost of such a screw device is low, the applicability and convenience are high.

  Another object of the present invention is to provide a kind of orthodontic screw device, in which the screw thread of the screw portion is closer to the first screw arrangement near the flat base than the second screw arrangement away from the flat base. It is assumed that the screw device is tightly mounted and therefore tightly and firmly mounted in any sparsely populated bone head.

  A further object of the present invention is to provide a kind of orthodontic screw device, in which the angle design of the gradually narrowing portion of the rear end of the screw portion away from the flat base portion is 2 to 10 degrees. As a result, the screw device is attached tightly and firmly in the bone head of any sparse density.

The device of claim 1 is an orthodontic screw device,
A threaded portion extending a predetermined length in the axial direction and having a thread in the radial direction;
A flat base portion connected to the screw portion and integrated, and having an upper plane and a lower plane;
Comprising a head detachably coupled to the flat platform,
The head includes a covering portion, a second connecting portion that is connected to the bottom side surface of the covering portion and can be connected to the first connecting portion and serves to fix the head to the flat base portion; and the covering An accessory that is connected to the upper side of the part and assists in orthodontics,
An orthodontic orthodontic screw device is characterized in that the accessory part is exposed to the outside of the flat base part after the second coupling part and the first coupling part are coupled.
According to a second aspect of the present invention, in the orthodontic screw device according to the first aspect, the screw thread of the screw portion is closer to the second screw thread arrangement in which the first screw thread arrangement approaching the flat bed part is separated from the flat bed part 63. And a screw device for orthodontic orthodontics, characterized in that the rear end of the screw portion that is separated from the flat base portion is gradually narrowed, and the gradually narrowing angle of the rear end is 2 to 10 degrees. Yes.
The invention of claim 3 is the orthodontic screw device according to claim 1, wherein the accessory has a neck portion, the neck portion extends in the axial direction from the covering portion, and the neck portion is a single unit. It is provided with a width for engagement with an orthodontic spring, and a ball head is connected to the neck, and the diameter of the ball head is larger than the width of the neck to prevent the orthodontic spring from falling off. It is set as the screw device for orthodontics characterized by this.

  The screw device for orthodontics of the present invention includes a screw portion, a flat base portion, and a head portion. The head is used to lock the orthodontic spring, and the head is exposed to the outside of the flat base and can be removed from the flat base. By making the head removable, the user can design and operate various types of heads, which can be combined with different heads on the same flat base, which can be applied to different orthodontic treatments It is. Moreover, although the manufacturing cost of such a screw device is low, applicability and convenience are high.

  The screw device for orthodontic orthodontics of the present invention is provided, and the screw thread of the screw part is provided closer to the first screw arrangement near the flat base part than the second screw arrangement apart from the flat base part. It is firmly attached in any sparsely populated bone head.

  In the orthodontic screw device of the present invention, the angle design of the gradually narrowing portion at the rear end away from the flat base portion of the screw portion is set to 2 to 10 degrees. Mounted in the bone head of density.

  The components such as jaw bone 10, gingiva 11, tooth 12, orthodontic wire 13, orthodontic support frame 14 and orthodontic spring 15 (or rubber band) described below, and their relative positions attached to the oral cavity are all shown in FIG. Since it is the same as the well-known technique shown and is not a technical feature of the present invention, the same component names and reference numerals are used, and the detailed configuration, mounting position and function are omitted. In particular, in the prior art embodiment shown in FIG. 1, only the embodiment in which the orthodontic device is attached to the outer side of the upper jaw is described, but it can be attached to the lower jaw or the inner side of the tooth.

  See FIGS. FIG. 2 shows a first embodiment of the orthodontic screw device of the present invention, and FIG. 3 is a display diagram for performing orthodontic correction by attaching the orthodontic screw device of FIG. 2 to the upper jaw or the lower jaw. .

  As shown in FIGS. 2 and 3, the screw 60 of the first embodiment of the present invention includes a columnar screw portion 61, a flat base portion 63, and a head portion 62, of which the screw portion 61 has a predetermined length in the axial direction. The flat base portion 63 is integrally connected to the screw portion 61 along the axial direction, and the head portion 62 is another independent component. The material of the screw portion 61 and the head portion 62 is a titanium alloy, stainless steel, or other rigid material that is harmless to the human body.

  In this embodiment, the thread of the screw portion 61 is such that the arrangement of the first screw threads 612 approaching the flat bed portion 63 is denser than the arrangement of the second screw threads 613 remote from the flat bed portion, and the screw threads. The rear end of the part 61 away from the flat base part 63 becomes gradually thinner. In this embodiment, the gradually narrowing angle is 2 to 10 degrees. With such a design, a user (for example, a dentist) can easily screw the screw 60 into an article (for example, the maxilla or mandible of a sick person). Since the bottom end (rear end 614) of the screw portion 61 is thin and the arrangement of the second screw threads 613 is sparse, the user can screw it in without applying a large force. When the user needs to screw the entire screw part 61 into the article, the screw part 61 can provide a tight and safe screwing force due to the gradually increasing diameter and the closely arranged first threads 612. Of course, when the first thread 612, which is densely arranged, is screwed into the article, the user must screw it with a relatively large force. Another advantage of the design in which the rear end of the screw portion 61 is sparse and gradually narrows is that the upper or lower jaw of a person has a fragile internal structure and a hard and strong external structure. Since the rear end of the portion 61 is designed so that the thread arrangement is sparse and gradually narrows, damage to the fragile internal structure in the maxilla or mandible can be prevented, and the screw portion 61 can be firmly screwed onto the article. It can be worn. In addition, the frictional force between the screw portion 61 and the article (for example, the maxilla or mandible) can be increased by roughening the outer surface (for example, the thread surface) of the screw portion 61, thereby the screw 60 of the present invention. And screwing of the article can be further strengthened. Chemical etching and other conventional techniques can be used to roughen the thread surface. Commonly used HA particles can also be used on the thread surface to increase the biomedical effect.

  Naturally, the arrangement design of the first thread 612 of the flat base part 63 can be made sparser than the second thread 613 far from the flat base part, which is a fragile internal structure of the maxilla or mandible and strong Used for patients with different external structure thickness.

  The flat platform 63 further includes a flat upper surface 631, a first coupling portion 632, and a smooth outer surface portion 634. In the present embodiment, the radial width of the flat base portion 63 is wider than the radial width of the screw portion 61 and the head portion 62. The smooth outer surface portion 634 is a smooth and non-threaded surface, and the shape of the smooth outer surface portion 634 is as shown in FIG. 2 or a polygonal shape (for example, from a plan view). As you can see). The flat upper surface 631 is installed perpendicular to the screw portion 61, the first coupling portion 632 is provided on the flat upper surface 631, and the first coupling portion 632 includes a screw hole 6321 and a hexagonal structure 6322, Among them, the screw hole 6321 is used to fix the head 62, and the hexagonal structure 6322 is used by a user to screw the screw part 61 into an article using a tool. The flat lower plane 633 is adjacent to the upper end of the screw portion 61 and is perpendicular to the screw portion 61. Therefore, when the screw portion 61 is completely screwed into the article, the flat lower plane 633 is moved to the article (maxilla or Can contact the surface of the mandible 10). This is as shown in FIG. Such a design has an appearance that the screwing of the screw is very strong, the fusion of the gum 11 is fast, and the surface after the fusion of the gum 11 is prepared. The user (dentist) can also choose not to screw the entire screw 61 into the article (maxilla or mandible 10), at this time, between the flat lower plane 633 and the article (maxilla or mandible 10). However, since the flat lower surface 633 is a flat surface and the smooth outer surface 634 is a smooth surface, they all aid in the healing of the gingiva 11.

  The head portion 62 is separable from the flat platform portion 63, and the head portion further includes a covering portion 621, a second coupling portion 622, and an accessory 623. Among them, the second coupling portion 622 is connected to the bottom side surface of the covering portion 621, and the second coupling portion 622 can be coupled to the first coupling portion 632, and fixes the head portion 62 to the flat base portion 63. Used for. In the present embodiment, the second coupling portion 622 is a screw. The accessory 623 is connected to the upper side surface of the covering portion 621 and used for orthodontic assistance. In addition, after the second coupling portion 622 and the first coupling portion 632 are coupled, the accessory 623 is exposed to the outside of the flat base 63, and thus the orthodontic spring 15 (or rubber band) is attached to the accessory 623. It can be locked. In this embodiment, the accessory 623 further includes a neck, the neck (attachment 623) is extended from the covering portion 621 along the axial direction of the screw portion 61, and the neck has a single width. It is used for engagement of the orthodontic spring 15. The neck (attachment 623) forms a movable hook to lock one end of the orthodontic spring 15 and a ball head 624 is connected to the neck (attachment 623). The diameter of 624 is larger than the width of the neck, thereby preventing the orthodontic spring 15 from falling off. The reason why the neck portion is designed to extend from the covering portion 621 along the axial direction of the screw portion 61 is that the orthodontic spring 15 damages the gingival surface structure due to the thickness of the flat base portion 63. It is to prevent.

  4 to 13 are diagrams showing preferred embodiments of the heads 62a to 62h, 62x and 62y of the present invention. In a preferred embodiment of the present invention, the head 62 can be separated and replaced, so that the head 62 can be designed with different types of heads 62a-62j, 62x, 62y, and the same flat part 63 and screw part 61. The screw 60 is used for orthodontic purposes for different purposes, and the applicability and convenience of these screws 60 are increased. At this time, it is only necessary to manufacture one type of portable flat base 63 and screw 61, thereby reducing the manufacturing cost of the screw device. In the embodiment shown in FIG. 4, the attachment 623a of the head 62a has an inverted L-shaped structure. In FIG. 5, the accessory 623b of the head 62b has a hook-like structure. In FIG. 6, the accessory 623 c of the head 62 c is a concave groove, and the concave groove (the accessory 623 c) is further connected to another accessory, for example, an orthodontic support frame, to encode a request for orthognathic correction. . In FIG. 7, a head portion 62d without an accessory is formed, and thus the covering portion 621d has an upper flat surface, and the user can select whether or not any accessory is bonded to the upper surface. In FIG. 8, the accessory 623e of the head 62e has a straightening support frame structure. In FIG. 9, the attachment 623f of the head 62f is the rod-shaped neck shown in FIG. 2, but the covering portion 621f of this embodiment is designed to be relatively thick, and a rectangular perforation 66 is formed to form a straightening wire. To be passed through. In FIG. 10, the accessory 623 g of the head 62 g is a cube having a large number of flat surfaces 6231, and an accessory (an orthodontic support frame) is provided on one of the large numbers of flat surfaces 6231 to assist orthodontic correction. In FIG. 11, the attachment 623h of the head 62h is a cube with a rod-like neck 68, the rod-like neck 68 can lock a spring, and a perforation 69 is formed in the cube to pass the correction wire. To be served. In FIG. 12, the accessory part 623x of the head part 62x is a cone having a large slope 6232x, and parts can be added to the slope 6232x to assist orthodontic treatment, and between the slope 6232x and the covering portion 621x. The depression angle θ1 can be 30 degrees, 45 degrees, 60 degrees, or other angles. In FIG. 13, most of the parts of the head 62y are the same as in FIG. 12, and therefore the description of the same parts is omitted, but the difference is that the inclined surface 6232y of the head 62y is directly extended to the covering portion 621y. Therefore, the depression angle θ2 between the inclined surface 6232y and the covering portion 621y is small, between about 10 degrees and 60 degrees, and is applied to different cases.

  FIG. 14 shows another embodiment of the flat base portion 63i and the screw portion 61i of the present invention. In this embodiment, the flat base portion 63i has a diameter in the radial direction equal to that of the screw portion 61i, and a hexagonal concave groove 64 is formed on the flat upper surface 631i of the flat base portion 63i. A screw can be screwed by fitting to 64.

  FIG. 15 shows a third embodiment of the orthodontic screw 60j device according to the present invention. In this embodiment, a polygonal groove 636 (first coupling portion) is formed on the flat upper surface 631j of the flat base portion 63j of the screw 60j. ) And the rectangular concave groove 636 and the threaded portion 61j are located on the same axial direction, and the second coupling portion of the head portion 62j is also designed as a polygonal column 626. Therefore, the polygonal column 626 has many polygonal columns 626. It is inserted into the rectangular groove 636 and fixed with an adhesive.

  FIG. 16 shows a fourth embodiment of the orthodontic screw 60k device of the present invention. In this embodiment, a plurality of pin sheets 637 are provided on the flat upper surface 631k of the flat base portion 63k of the screw 60k, The second coupling portion of the head 62k is designed as a plurality of pins 627. Therefore, the plurality of pins 627 are inserted into the plurality of pin sheets 637 and fixed with an adhesive.

  FIG. 17 shows a fifth embodiment of the orthodontic screw 601 device of the present invention. In this embodiment, a plurality of pin sheets 638 are provided on the flat upper surface 6311 of the flat base portion 631 of the screw 601, and the second coupling portion of the head 621 is designed as a plurality of pins 628, and thus a plurality of pins 628. Are inserted into a plurality of pin sheets 638 and fixed with an adhesive. Among them, two intersecting rectangular grooves 629 are formed in the head portion 621, and the rectangular grooves 629 correspond to the flat upper surface 6311 of the flat base portion 631, and thus the head portion 621 and the flat base portion 631 are combined. Later, two intersecting rectangular grooves 629 form two holes for passage of the straightening wire.

  FIG. 18 is a partially enlarged view of a sixth embodiment of the screw portion 71 of the present invention. In the present embodiment, the first screw thread 710 approaching the flat bed part 73 of the screw part 71 is a thin screw thread having a width D = 0.5 to 0.75 mm of the screw thread itself, and is separated from the flat bed part 73. The second thread 711 is wider than the first thread (D> 0.75 mm). When fixing the screw, it is screwed with more multiple rounds of the first thread 710 into the hard and strong external structure (cortical bone) of the patient's maxilla or mandible. This is because the design of the first thread 710 is a thin thread system, which increases the amount of thread attachment within a unit volume, thereby increasing the strength after thread fixing.

  FIG. 10 shows a seventh embodiment of the orthodontic screw 801 device of the present invention. In this embodiment, the portion of the screw portion that approaches the flat base portion 83 is a blank portion 810 that does not have a screw thread, and therefore, a blank portion 810 is formed between the screw thread 811 and the flat base portion 63. When the orthodontic screw 801 is screwed into the patient's maxilla or mandible, the smooth blank portion 810 of the orthodontic screw 801 comes into contact with the soft tissue in the maxilla or mandible, and the maxilla or mandible Prevents soft tissue frictional damage and is therefore applied to special sites.

  20 and 21 show an eighth embodiment of the orthodontic screw 901 device of the present invention. In this embodiment, when the orthodontic screw 901 is screwed into the patient's maxilla or mandible at an inclination angle, a washer 910 is added for buffering and fixation. At this time, the washer 910 slightly protrudes from the orthodontic screw 901. As shown in FIG. 21, in this embodiment, when the orthodontic screw 901 is tightened, the washer 910 is under pressure, the portion of the washer 910 protruding from the orthodontic screw 901 is contracted, and Due to the balance between the elastic recovery force of the washer 910 and the fixing force of the orthodontic screw 901, an effect of increasing the fixing force is achieved. The orthodontic screw 901 receives a pulling force f of a spring (not shown) and is firmly fixed to the patient's maxilla or mandible, and does not cause a slack or slide phenomenon.

  FIG. 22 shows a ninth embodiment of the orthodontic screw 90a device of the present invention. Among them, the screw 90a is a single part formed by integral molding, and includes a screw portion 91a, a flat base portion 93a, and a head portion 92a. A rectangular through hole 96a is formed in the neck 923a and is used for the passage of the correction wire. A correction frame 924a is provided on the head 92a to accommodate a correction wire (not shown). The head 92a is further provided with an ear-shaped recess 925a, which is formed downwardly around the correction frame 924a and is provided for the user to hang the wire 150 or rubber band.

  FIG. 23 shows a tenth embodiment of the orthodontic screw 90b device of the present invention. The screw 90b includes a screw portion 91b, a flat base portion 93b, and a head portion 92b. The head 92b is an independent separable component, which includes a flat lid 921b, a second coupling structure 922b (eg, a screw), a neck 923b, a correction frame 924b, and an ear-shaped recess 925b. The flat base portion 93b is further provided with a first coupling structure 932b (for example, a screw hole) for use in coupling with the second coupling structure 922b. A square through-hole 96b is provided in the neck portion 923b to allow passage of the correction wire.

  24 and 25 show eleventh and twelfth embodiments of orthodontic screws 93c and 90d of the present invention. In FIG. 24, a rectangular through hole 96c is provided in the flat base portion 93c of the orthodontic screw 90c, and in FIG. 25, the through hole 96d is provided in the neck portion 923d. Both the orthodontic screws 90c and 90d are preferably formed as a single component integrally formed.

  FIG. 26 shows a thirteenth embodiment of the orthodontic screw 90e device of the present invention. The screw 90e includes a screw part 91e, a flat base part 93e, and a head part 92e. The head 923 includes an L-shaped neck portion 923e, and a circular head 924e is provided at the end of the neck portion 923e to prevent the correction spring to be locked from falling off. The screw portion 91e is designed to be gradually tapered in a conical shape, and a non-threaded area is provided in an upper portion approaching the flat base portion 93e. A square through hole 96e is provided in the flat base portion 93e.

  The embodiments described above do not limit the scope of the present invention, and any modification or alteration of details that can be made based on the present invention shall fall within the scope of the present invention.

It is the Example display figure attached in the oral cavity of the screw apparatus for orthodontics of a well-known technique. It is a 1st Example display figure of the screw device for orthodontics of this invention. FIG. 3 is a display diagram for performing orthodontic correction by attaching the orthodontic screw device of the present invention of FIG. 2 to the upper jaw or the lower jaw. It is a display example of a preferred embodiment of the head 62a of the present invention. It is a display example of a preferred embodiment of the head 62b of the present invention. It is a display example of a preferred embodiment of the head 62c of the present invention. It is a display example of a preferred embodiment of the head 62d of the present invention. It is a display example of a preferred embodiment of the head 62e of the present invention. It is a display example of a preferred embodiment of the head 62f of the present invention. It is a display example of a preferred embodiment of the head 62g of the present invention. It is a display example of a preferred embodiment of the head 62h of the present invention. It is a display example of a preferred embodiment of the head 62x of the present invention. It is a display example of a preferred embodiment of the head 62y of the present invention. It is a 2nd Example display figure of the flat base part 63i and the screw part 61i of this invention. It is a 3rd Example display figure of the screw 60j apparatus for orthodontics of this invention. It is a 4th Example display figure of the screw 60k apparatus for orthodontics of this invention. FIG. 10 is a display diagram of a fifth embodiment of the orthodontic screw 601 device of the present invention. It is a 6th Example display figure of the screw part 71 of this invention. It is a 7th Example display figure of the screw 801 apparatus for orthodontics of this invention. It is a display figure before fixation of the 8th Example of the screw 901 apparatus for orthodontics of this invention. It is a display figure after fixation of the 8th Example of the screw 901 apparatus for orthodontics of this invention. It is a 9th Example display figure of the screw 90a apparatus for orthodontics of this invention. It is a 10th Example display figure of the screw 90b apparatus for orthodontics of this invention. It is a 11th Example display figure of the screw 90c apparatus for orthodontics of this invention. It is a 12th Example display figure of the screw 90d apparatus for orthodontics of this invention. It is a 13th Example display figure of the screw 90e apparatus for orthodontics of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Jawbone 11 Gingiva 12 Tooth 121 Molar tooth 13 Correction wire 131 Hook-like structure 14 Correction support frame 141 Special correction ditch | groove 15 Tooth-jaw correction spring 151 Hook ring 16 Binding wire 20 Screw 60, 801, 901, 90a-90e Tooth jaw Straightening screw 61, 71, 91a Screw part 62, 92a Head 63, 83, 93a Flat base part 612 First screw thread 613 Second screw thread 614 Rear end 621 Covering part 622 Second coupling part 623 Accessory 624 Ball head 626 Polygonal column 627 Pin 631 Upper plane 632 First coupling portion 633 Lower plane 634 Surface portion 810 Blank portion 910 Washer

Claims (3)

In the orthodontic screw device,
A threaded portion extending a predetermined length in the axial direction and having a thread in the radial direction;
A flat base portion connected to the screw portion and integrated, and having an upper plane and a lower plane;
Comprising a head detachably coupled to the flat platform,
The head includes a covering portion, a second connecting portion that is connected to the bottom side surface of the covering portion and can be connected to the first connecting portion and serves to fix the head to the flat base portion; and the covering An accessory that is connected to the upper side of the part and assists in orthodontics,
The orthodontic orthodontic screw device, wherein the accessory part is exposed outside the flat base part after the second coupling part and the first coupling part are coupled.   The orthodontic screw device according to claim 1, wherein the screw threads of the screw portion are closer to the first screw thread arrangement approaching the flat bed portion than the second screw thread arrangement separated from the flat bed portion 63, and An orthodontic screw device, characterized in that the rear end away from the flat base portion is gradually narrowed, and the angle at which the rear end gradually narrows is 2 to 10 degrees. 2. The orthodontic screw device according to claim 1, wherein the accessory includes a neck portion, the neck portion extends in the axial direction from the covering portion, and the neck portion has a single width and has a single width. A ball head is connected to the neck, and the diameter of the ball head is larger than the width of the neck to prevent the orthodontic spring from falling off. Orthodontic screw device.

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