CN218128818U - Orthodontic implantation anchorage nail - Google Patents

Abstract

The utility model provides a planting anchorage nail for orthodontics, which comprises a bone anchorage nail positioned at the bottom, a fixing screw at the top and a middle guide pipe positioned in the middle when in use, wherein the bone anchorage nail is of a titanium alloy structure as a whole and comprises a base platform, a neck part and an anchorage nail thread part in an external thread structure from top to bottom, a concave hole is arranged at the top of the base platform from top to bottom, and an internal thread part is arranged at the lower part of the concave hole; the fixing screw comprises a screw head and a screw thread part in an external thread structure from top to bottom, or also comprises a waist part positioned between the screw head and the screw thread part; the middle guide pipe comprises a circular ring part, a rod part and a strip-shaped square pipe containing a strip-shaped square hole which are sequentially connected. Tooth is just abnormal with planting anchorage nail novel structure for can be used for realizing multiple tooth simultaneously in the joint bone anchorage system, can enlarge application of force scope and can high-efficient function in the just abnormal joint bone anchorage system of using of tooth that many target teeth or whole dentition removed.

Description

Orthodontic implantation anchorage nail

Technical Field

The utility model relates to an orthodontic field especially relates to an orthodontic is with planting anchorage nail.

Background

Orthodontic treatment involves maxillofacial bones, muscles and teeth, and efficient tooth movement is the core of orthodontic treatment. During orthodontic treatment, orthodontic force is applied to teeth and simultaneously an acting force with opposite directions and equal magnitude is generated, and the undesirable counterforce often causes the target teeth to incline, so that the orthodontic treatment period is prolonged. Therefore, to block such adverse forces, bone anchorage ensues. In order to reduce this unwanted tooth movement, orthodontists have developed a range of bone anchorage devices using their own clinical experience. In recent years, bone anchorage screws have gained a very high popularity in the orthodontic field and are considered to be an absolute source of orthodontic strong anchorage. Because the volume is small, the anchorage is strong, and the compliance of the patient is not required to be emphasized, the use of the bone anchorage nail is particularly convenient, and the orthodontic treatment course can be effectively shortened for the patient. However, at present, the bone anchorage nail with a single stress point is mainly used clinically, and only acts on one target tooth or dentition, which greatly limits the application range of the bone anchorage nail.

For example, chinese utility model patent CN201420554684.5 discloses a dental orthodontic miniscrew. The miniscrew comprises a head part, a neck part and a thread part; the head comprises a head cap, a head cap column and an accessory fixing column; the head cap is arranged on the head cap column, and the accessory fixing column is positioned between the head cap column and the neck. The accessory is provided with a fixing ring matched with the accessory fixing column, and the fixing ring is also connected with an extended action rod. The action rod of the accessory comprises a rod body, and a hook is arranged at the tail end of the rod body. The utility model discloses a brand-new little screw is provided, but this product screwhead accessory of arranging uses to make anchorage power can extend in all directions, strengthened anchorage effect, help the removal of tooth, increased the clinical application scope of implant anchorage nail. However, the micro-screw can only apply force to a single part (such as a single tooth) in the oral cavity, and the supporting force direction is single.

Chinese utility model patent CN202021912144.1 discloses a multipurpose auxiliary device that combines to use with just abnormal planting body anchorage, including the supplementary application of force structure that is used for wedging the carry structure of just abnormal little planting body head slot and is used for providing supplementary traction force, carry structure both ends and connect and implant internal just abnormal little planting body head slot is last, through controllability fixed connector interconnect, supplementary application of force structure is fixed in controllability fixed connector both sides. The utility model discloses a device is easy to assemble and adjustment length, can utilize just abnormal little planting body's absolute anchorage to provide a plurality of traction force arms steadily to low cost, the operation is also very convenient, utilizes the carry structure to connect just abnormal little planting body head groove and supplementary application of force structure, and fixed mode is simple, improves work efficiency. However, the auxiliary device of the patent is only provided with four traction hooks, only the four traction hooks can bear force, and a single rubber band is hung on a single traction hook, so that the auxiliary device has few stress points and inflexible stress direction.

The Chinese patent application CN201711430019.X discloses a depressed upper anterior tooth corrector, which comprises micro-implant anchorage nails and a corrector, wherein the micro-implant anchorage nails are divided into two groups, a first group of micro-implant anchorage nails are arranged on the buccal side between a second anterior molar tooth and a first molar tooth of an upper jaw, the joint of a membrane gum and a tooth shaft is 45 degrees, a second group of micro-implant anchorage nails are arranged between an incisor tooth and an incisor of the upper jaw side, the joint of the membrane gum and the tooth shaft is 45 degrees, a plurality of cortical bone gaps are prepared for cortical bone between the second anterior molar teeth of the upper jaw and the left jaw, the size of the first group of micro-implant anchorage nails is larger than that of the second group of micro-implant anchorage nails, the corrector comprises a traction hook and a closing gap arch wire, one end of the traction hook is arranged on the closing gap arch wire, and the other end of the traction hook is connected with the micro-implant anchorage nails through a rubber chain or a tension spring. The tooth moving speed is accelerated in the upper anterior tooth correcting process, the distance of the upper anterior tooth is greatly increased due to the fact that adduction pressure is reduced, irreversible damage to the tooth root is avoided being large, and the curative effect is greatly improved. However, the appliance provided in this patent is only applicable to depressing anterior teeth, and does not provide appropriate corrective forces to adducted anterior teeth, molar posterior teeth, depressed posterior teeth, and the like.

Therefore, there is a need in the art for a combined anchorage system for orthodontics that can simultaneously perform a plurality of orthodontic functions, can expand the range of application of force, and can efficiently act on a plurality of target teeth or the entire dentition movement, and there is a corresponding need for an implant anchorage nail of improved structure.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model firstly provides an implant anchorage nail for orthodontics, which comprises a bone anchorage nail positioned at the lowest part, a fixing screw at the uppermost part and a middle guide pipe arranged in the middle when in use, wherein the bone anchorage nail is of a titanium alloy structure as a whole and comprises a base platform, a neck part and an anchorage nail thread part in an external thread structure from top to bottom, the top of the base platform is provided with a concave hole from top to bottom, and the lower part of the concave hole is provided with an internal thread part; the fixing screw comprises a screw head and a screw thread part with an external thread structure from top to bottom, or the fixing screw comprises a screw head, a waist part and a screw thread part with an external thread structure from top to bottom, and the middle guide pipe comprises a circular ring part, a rod part and a strip-shaped square pipe with a strip-shaped square hole which are sequentially connected; the ring portion of middle part pipe is arranged in the cover to establish the upper portion position at set screw's waist or its screw thread portion, the screw thread portion of the set screw that the cover was equipped with the middle part pipe be arranged in inserting the shrinkage pool of bone branch resistance nail and with it is fixed that internal thread portion matches the twist, therefore set screw is used for fixing the middle part pipe on bone branch resistance nail, be used for penetrating the stainless steel square wire in the bar square hole of bar side pipe.

In a specific embodiment, the rod part is vertically connected with the strip-shaped square pipe.

In a specific embodiment, the internal thread portion of the bone anchorage nail is arranged at a position corresponding to the inside and the outside of the neck portion.

In a specific embodiment, the top of the screw head is provided with a cross-shaped groove for matching with an implantation tool.

In a specific embodiment, the base platform is of a square head structure, and the concave hole and the screw head are of a round structure.

In a specific embodiment, the anchorage screw thread part is a self-tapping screw thread, and the whole anchorage screw thread part is conical; the screw thread part and the internal thread part are both columnar threads or tapered threads.

In a specific embodiment, the length of the rod part is 2 to 6mm, the length of the strip-shaped square pipe is 1 to 3mm, and the length of the rod part is longer than that of the strip-shaped square pipe.

The utility model also correspondingly provides a joint bone anchorage system for orthodontics, which comprises two sets of planting anchorage nails, wherein each set of planting anchorage nail comprises a bone anchorage nail positioned at the lowest part, a fixing screw at the uppermost part and a middle conduit arranged in the middle when in use, and the joint bone anchorage system also comprises a stainless steel square wire and a traction accessory; the whole bone anchorage nail is of a titanium alloy structure and comprises a base platform, a neck part and an anchorage nail thread part in an external thread structure from top to bottom, a concave hole is formed in the top of the base platform from top to bottom, and an internal thread part is arranged at the lower part of the concave hole; the fixing screw comprises a screw head, an optional waist part and a screw thread part in an external thread structure from top to bottom, and the middle guide pipe comprises a circular ring part, a rod part and a strip-shaped square pipe containing a strip-shaped square hole which are sequentially connected; the ring portion of middle part pipe is arranged in the cover to establish the upper portion position at set screw's waist or its screw thread portion, the cover be equipped with the set screw's of middle part pipe screw thread portion be arranged in inserting the shrinkage pool of a bone anti nail and with it is fixed that internal thread portion matches the twist, therefore set screw is used for fixing the middle part pipe on a bone anti nail, be used for penetrating the stainless steel square wire in the bar square hole of bar side pipe, the one end of pulling the accessory is used for fixing on the stainless steel square wire.

In a specific embodiment, the traction fitting comprises one or more of a rubber band, a tension spring, and a ligature wire.

Compared with the prior art, the utility model discloses following beneficial effect has:

orthodontic is with planting anchorage nail novel structure for in the joint bone anchorage system can be used for realizing simultaneously that multiple tooth corrects the function, can enlarge application of force scope and can high-efficient effect in the just abnormal joint bone anchorage system of using of tooth that many target teeth or whole dentition removed.

The utility model discloses in, two pieces of bone anchorage nails jointly use, increase firmness and stability, can bear bigger moment of torsion. The strip-shaped pipeline of the middle catheter is used for penetrating through the stainless steel square wire, the stainless steel square wire can provide more force application sites (such as a plurality of teeth or a plurality of arch wire positions), the strong anchorage system can greatly improve the moving efficiency of orthodontic teeth, effectively shorten orthodontic treatment course, and is particularly suitable for adult correction. The utility model discloses still can effectively reduce just abnormal treatment in-process to the oppression of patient's lip, buccal mucosa, alleviate the uncomfortable sense of patient, help improving patient compliance, improve work efficiency, shorten just abnormal course of treatment. The utility model discloses can realize many tooth adduction simultaneously, the holding down, extension, antedisplacement, move far away and pull the circumstances such as the tooth of burying according to the difference of treatment demand, especially be fit for clinical all kinds of complicated cases.

That is, the utility model discloses a just abnormal joint bone anchorage system of using of tooth can effectively utilize strong anchorage to remove just abnormal tooth with higher speed. The utility model discloses compare with the single planting anchorage nail of the conventional use clinically, this bone anchorage system is more firm, just abnormal efficiency is higher, can increase corresponding impetus according to the difference of treatment demand to can effectively reduce just abnormal oppression to the mucous membrane of pulling the in-process, alleviate the uncomfortable sense of just abnormal treatment in-process of patient, realize the tooth removal of many teeth at utmost.

Drawings

In order to more clearly illustrate the solution of the present invention, the drawings used in the embodiments will be briefly described below. It is obvious that the following described figures are only some embodiments of the invention, and that for a person skilled in the art, other figures can also be derived from them without inventive effort.

Fig. 1 is a schematic view of a set of implant anchorage nail structure in the combined bone anchorage system for orthodontics of the present invention.

Fig. 2 is a schematic structural view of the combined anchorage system for orthodontics according to the present invention.

Fig. 3 is a schematic structural view of a bone anchorage nail of the combined bone anchorage system for orthodontics according to the present invention.

Fig. 4 is a schematic top view of the bone anchorage nail of the combined bone anchorage system for orthodontics according to the present invention.

Fig. 5 is a front view of the fixing screw of the combined anchorage system for orthodontics according to the present invention.

Fig. 6 is a schematic top view of a fixing screw of the combined anchorage system for orthodontics according to the present invention.

Fig. 7 is a front view of another fixing screw of the combined bone anchorage system of the present invention.

Fig. 8 is a front view of the middle catheter of the combined anchorage system for orthodontics according to the present invention.

Fig. 9 is a schematic top view of a middle catheter of the orthodontic combined anchorage system of the present invention.

The reference numerals are explained below:

1. a bone anchorage nail; 2. a fixing screw; 3. a middle conduit; 4. stainless steel square wires; 5. a traction fitting; 11. a first bone anchorage pin; 12. a second bone anchorage nail; 13. a base station; 14. a neck portion; 15. an anchorage screw thread portion; 16. concave holes; 17. an internal thread portion; 21. a first set screw; 22. a second set screw; 23. a screw head; 24. a waist part; 25. a screw thread portion; 31. a first middle conduit; 32. a second intermediate conduit; 33. a circular ring part; 34. a rod portion; 35. a strip-shaped pipeline.

Detailed Description

Example 1

In fig. 1 to 9, the bone anchorage nail 1 comprises a first bone anchorage nail 11 and a second bone anchorage nail 12; the first bone anchorage nail 11 is used for being implanted between the cuspid and the first premolar at the buccal side membrane-gum joint and forms 45 degrees with the long axis of the tooth body, and the length and the diameter of the first bone anchorage nail 11 are 8 x 1.4mm; the second bone anchorage nail 12 is used for being implanted between the second premolar and the first molar at the buccal side membrane-gingival junction, and the length and the diameter of the second bone anchorage nail 12 are 10 x 2mm; the first bone anchorage nail 11 and the second bone anchorage nail 12 are positioned on the same horizontal line and form an angle of 45 degrees with the long axis of the tooth body. The neck part 14 of the anchorage nail is of a gum penetrating structure, is 2mm long, is coated with an antibacterial coating on the surface, has good biocompatibility and can reduce the infection risk of mucous membrane soft tissues; the thread space of the anchorage screw thread part 15 is 0.1-0.2 mm, the thread depth is 0.1-0.2 mm, and the anchorage screw thread part 15 is used for being implanted into an alveolar bone to form osseointegration and play a role of strong anchorage. The whole screw thread part is conical, the thread pitch is 0.1mm, and the thread depth is 0.1mm. The rod part 34 is 4mm long, and the rod part 34 is connected with the strip-shaped pipeline 35 and is vertical to the strip-shaped pipeline; the strip-shaped pipe 35 has a length of 2mm and is in the form of a square hollow pipe, the outer diameter of the pipe is 0.021 × 0.028 inches, the inner diameter of the pipe is 0.019 × 0.025 inches, and the square hollow pipe can be penetrated by 0.019 × 0.025 inches of orthodontic stainless steel square wires 4. The stainless steel square wire 4 passes through the strip-shaped pipeline 35 fixed on the first middle conduit 31 of the first bone anchorage nail 11 and the second middle conduit 32 of the second bone anchorage nail 12, and the stainless steel square wire 4 can be connected with a plurality of traction fittings 5, so that the movement of a plurality of teeth or the integral movement of a dentition is realized. Traction accessories such as rubber bands, tension springs, ligature wires and the like are used for forward movement, depression, adduction and distal movement of teeth. The first middle catheter 31 and the second middle catheter 32 are parallel to each other and are 1mm away from the mucous membrane, the stainless steel square wires can penetrate through the strip-shaped pipelines on the same horizontal plane at two sides, and the stainless steel square wires 4 are 1mm away from the mucous membrane at the buccal side, so that the compression on soft tissues can be reduced; the length of the stainless steel square wire is adjusted according to the distance between the two bone anchorage nails, and the stainless steel square wire can be connected with traction components such as a tension spring, a rubber ring, a ligature wire and the like; one end of the traction part is fixed on the stainless steel square wire, and the other end of the traction part is used for being fixed on a bracket accessory, a buccal surface accessory or a dentition arch wire (closing gap arch wire) of a tooth to be moved, so that the movement of a plurality of teeth or the integral movement of dentition is effectively realized. By the design, the two bone anchorage nails can provide strong anchorage and can maximally draw orthodontic teeth.

The end part of the stainless steel square wire 4 penetrating through the strip-shaped pipeline is burned by a lighter and then bent, or resin balls are adhered to the two ends of the stainless steel square wire 4. The bone anchorage nail of the utility model is generally kept in the oral cavity for several months, one year or even longer, and is removed after orthodontic treatment is finished. The utility model discloses in bone anchorage nail 1 is the titanium alloy structure, and set screw 2 and middle part pipe 3 can be other materials, for example the steel.

In the utility model, the diameter and the length of the bone anchorage nail should be adjusted according to the treatment requirement and the change of the implanted part. For example, when the anterior teeth depression is performed, the implantation site of the first bone anchorage nail in the oral cavity is between the right maxillary lateral incisor and the cuspid labial side, the joint of the gingiva, the implantation site of the second bone anchorage nail in the oral cavity is between the right maxillary lateral incisor and the cuspid, and the joint of the labial lateral gingiva, two bone anchorage nails are positioned on the same horizontal line and are 45 degrees with the long axis of the tooth body, and the length and the diameter of each bone anchorage nail are 6 x 1.4mm, for example. For another example, when posterior tooth advancement is performed, the implantation site of the first bone anchorage nail in the oral cavity is between the mandibular cuspid and the first premolar, the length and diameter of the first bone anchorage nail at the junction of the buccal side and the membrane and the gum are 8 × 1.4mm, the implantation site of the second bone anchorage nail in the oral cavity is between the mandibular second premolar and the first molar, the junction of the buccal side and the gum is 10 × 2mm, and the two bone anchorage nails are located on the same horizontal line and are at 45 degrees to the long axis of the tooth body.

It should be noted that the implantation position and size of the bone anchorage nail 1 in the oral cavity of the present invention should be flexibly changed according to the treatment requirement, and should not be limited to the embodiment. The core idea of the utility model is to use two sets of bone anchorage to provide absolute anchorage force, and to drive the teeth to move through the traction accessories such as tension springs, thereby effectively inhibiting the unfavorable inclined movement in the process of orthodontic tooth movement, and being especially suitable for complex cases requiring the simultaneous movement of a plurality of teeth.

Generally speaking, compare with prior art, the utility model discloses can hang wantonly on stainless steel square wire 4 and establish a plurality of rubber bands or ligature silk etc. and pull accessory 5, therefore the utility model discloses the tooth number that can the application of force simultaneously is more, can realize that many teeth of certain district section move in the equidirectional while. Just the utility model discloses a joint bone anchorage system including two sets of planting anchorage nails, the utility model discloses be particularly useful for the case that just abnormal degree of difficulty is high, just abnormal efficiency can be improved by a wide margin. Furthermore, compare prior art, unite bone anchorage system and include that two sets plant the anchorage nail, and the structure of every set planting anchorage nail all is obviously different with prior art, the utility model discloses a planting anchorage nail uses middle part pipe 3 as force transmission structure, and the strong resistance that props up of conduction, therefore the utility model discloses the usage is extensive, unite bone anchorage system except can effectively pushing down anterior teeth, can also play effective adduction anterior teeth, push away and grind tooth backward and push down functions such as posterior teeth.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not intended that the present invention be limited to these specific embodiments. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions and replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (7)

1. An implant anchorage nail for orthodontics, which is characterized by comprising a bone anchorage nail (1) positioned at the lowest part, a fixing screw (2) at the uppermost part and a middle conduit (3) positioned at the middle part when in use, wherein the bone anchorage nail (1) is of a titanium alloy structure as a whole and comprises a base platform (13), a neck part (14) and an anchorage nail thread part (15) in an external thread structure from top to bottom, a concave hole (16) is formed in the top of the base platform (13) from top to bottom, and an internal thread part (17) is formed in the lower part of the concave hole; the fixing screw (2) comprises a screw head (23) and a screw thread part (25) in an external thread structure from top to bottom, or the fixing screw (2) comprises a screw head (23), a waist part (24) and a screw thread part (25) in an external thread structure from top to bottom, and the middle guide pipe (3) comprises a circular ring part (33), a rod part (34) and a strip-shaped square pipe (35) containing a strip-shaped square hole which are sequentially connected; the ring portion (33) of middle part pipe (3) are arranged in establishing the upper portion position at waist (24) of set screw (2) or its screw thread portion (25), and the cover is equipped with screw thread portion (25) of set screw (2) of middle part pipe (3) and is arranged in inserting shrinkage pool (16) of a bone anti nail (1) and with it is fixed that internal thread portion (17) matches to twist, therefore set screw (2) are used for fixing middle part pipe (3) on a bone anti nail (1), be used for penetrating stainless steel square wire (4) in the bar square hole of bar side pipe (35).

2. The orthodontic implant anchorage pin according to claim 1, wherein the rod portion (34) and the bar-shaped square tube (35) are vertically connected.

3. The orthodontic implant anchorage pin according to claim 1, wherein the internal thread portion (17) of the bone anchorage pin (1) is provided at a position corresponding to the neck portion (14) inside and outside.

4. The orthodontic implant anchorage pin according to claim 1, characterized in that the top of the screw head (23) is provided with a cross-shaped groove for mating with an implantation tool.

5. The orthodontic implant anchorage pin according to claim 1, wherein the abutment (13) has a square head structure, and the recessed hole (16) and the screw head (23) have a circular structure.

6. The orthodontic implant anchorage screw according to claim 1, wherein the anchorage screw thread portion (15) is a self-tapping screw thread, which is tapered as a whole; the screw thread part (25) and the internal thread part (17) are both columnar threads or tapered threads.

7. The orthodontic implant anchorage pin according to claim 1, wherein the length of the rod portion (34) is 2 to 6mm, the length of the bar-shaped square tube (35) is 1 to 3mm, and the length of the rod portion (34) is longer than the length of the bar-shaped square tube (35).

Images