阅读说明：本技术 一种牙骨混合支持式外置口内牵张成骨器及使用方法 (Tooth bone mixed support type external intraoral distraction osteogenesis device and use method ) 是由 张黎丽 靳路远 周伟伟 于 2021-07-26 设计创作，主要内容包括：本发明涉及口腔颌面外科及正畸技术领域,提出了一种牙骨混合支持式外置口内牵张成骨器及使用方法,包括固位钉、牵引钉、牵引件,所述固位钉用于固定在骨皮质上端,所述牵引钉用于固定在待调整牙面上,所述固位钉与所述牵引钉借助所述牵引件连接,所述牵引件用于提供所述固位钉与所述牵引钉远离的弹力。通过上述技术方案,解决了现有技术中牵张成骨操作困难的问题。(The invention relates to the technical field of oral and maxillofacial surgery and orthodontics, and provides an external intraoral distraction osteogenesis device with a dental bone mixed support function and a using method thereof. Through the technical scheme, the problem of difficult operation of distraction osteogenesis in the prior art is solved.)

1. An external intraoral distraction osteogenesis device of mixed supporting type of tooth bone, which is characterized by comprising:

the fixture pin (1), the fixture pin (1) is used for fixing on the cortex of the upper end;

the traction nail (2), the traction nail (2) is used for being fixed on the tooth surface to be adjusted;

the traction piece (3), the retention nail (1) is connected with the traction nail (2) through the traction piece (3), and the traction piece (3) is used for providing elastic force for keeping the retention nail (1) away from the traction nail (2).

2. The external intraoral distraction osteogenesis device of mixed supporting of dental bones according to claim 1, wherein said distraction member (3) comprises:

the spring plate (4) is of a circular ring structure, one side of the spring plate (4) is connected with the fixing nail (1), and the other side of the spring plate (4) is connected with the traction nail (2);

the reed (4) is provided with a through hole;

the screw (5) penetrates through a through hole in the reed (4);

the screw rod (5) is provided with two nuts (6), the nuts (6) are arranged at two ends of the screw rod (5), and the nuts (6) are provided with drawing holes.

3. The external intraoral distraction osteogenesis apparatus of mixed dental and bone support type according to claim 1 or 2, further comprising:

the number of the guide tracks (7) is two, and the guide tracks (7) are movably arranged on tooth surfaces on two adjacent sides of the tooth surface to be adjusted;

the number of the guide columns (8) is two, the guide columns (8) are connected with the traction piece (3), and the guide columns (8) are arranged in the guide track (7) in a sliding mode.

4. The external intraoral distraction osteogenesis apparatus of mixed supporting of dental bones according to claim 3, wherein said guide track (7) comprises:

the track body (9), the track body (9) is movably arranged on the tooth surfaces at two adjacent sides of the tooth surface to be adjusted, and a sliding groove is formed in the track body (9);

the number of the limiting baffles (10) is two, the limiting baffles (10) are arranged at the notch of a sliding groove on the track main body (9), and the two limiting baffles (10) and the sliding groove form a T-shaped groove;

the guide post (8) comprises:

the connecting rod (11), the said connecting rod (11) is connected with said reed (4);

gleitbretter (12), gleitbretter (12) with connecting rod (11) are connected, gleitbretter (12) slide to be set up limit baffle (10) with between track main part (9).

5. The external intraoral distraction osteogenesis apparatus of claim 4, further comprising:

tension spring (13), tension spring (13) cover is established on connecting rod (11), be located limit baffle (10) with between gleitbretter (12).

6. The external intraoral distraction osteogenesis apparatus of claim 4, further comprising:

the sliding seat (14), the sliding seat (14) sets up on waiting to adjust the tooth face of the adjacent both sides of tooth face, track main part (9) slide to be set up on sliding seat (14).

7. The external intraoral distraction osteogenesis apparatus of claim 1, further comprising:

the fixing plate (15), the fixing plate (15) is connected with the traction piece (3);

the number of the retention nails (1) is two, and the retention nails (1) are arranged on the retention plate (15) and used for fixing the retention plate (15).

8. A method for using a dental bone mixed support type oral distraction osteogenesis device, comprising the dental bone mixed support type external oral distraction osteogenesis device of any one of claims 1 to 7, comprising the following steps:

s1: assembling according to the design structure of the dental bone mixed support type intraoral distraction osteogenesis device;

s2: fixedly mounting a sliding seat (14) on the tooth surfaces at two adjacent sides of the tooth surface to be adjusted;

s3: fixing a position-retaining plate (15) on the cortex of the upper end by a fixing nail (1);

s4: the traction piece (3) is fixed on the tooth surface to be adjusted through the traction nail (2);

s5: the compression reed (4) pulls the tooth surface to be adjusted to a preset position through the adjusting screw rod (5).

Technical Field

The invention relates to the technical field of oral and maxillofacial surgery and orthodontics, in particular to a dental bone mixed support type external intraoral distraction osteogenesis device and a using method thereof.

Background

Dental adhesion (Dental ankylosis) is the most common complication of maxillofacial developmental deformity after trauma in children and adolescents, and distraction osteogenesis is one of the methods for treating such developmental deformities. The distraction osteogenesis is an endogenous tissue engineering technology, when the distraction osteogenesis is applied to the adhesion of tooth bones, square osteotomy needs to be carried out on the adhered tooth, cortical bone around an adhesion area is cut off, distraction osteogenesis devices are arranged on two sides of the bone fracture surface, the gap between the cut bones is continuously widened through the generated external force, the potential of organism tissue regeneration is stimulated, new bone tissues are continuously formed in the distraction gap, and meanwhile, muscles, nerves, blood vessels, skin and the like around the bones are synchronously grown, so that the aim of prolonging the bones is fulfilled.

The existing clinical use is that the built-in distraction osteogenesis device is large in size and cannot be applied to distraction osteogenesis of a single tooth;

the dental support type distraction osteogenesis requires fixing the fixture to the maxillary teeth by an adhesive and applying a traction force to the teeth to push the anterior segment of the maxillary to move in the occlusal direction. However, when children and teenagers are in mixed dentition stage, the roots of deciduous teeth are in progressive absorption stage, the roots are short and cannot provide enough supporting force, the young permanent teeth are not completely formed and matured structurally, jaw facial injury can involve a plurality of teeth, and the injured young permanent teeth as anchorage of tooth-supported distraction osteogenesis can cause pulp necrosis, thereby causing the stagnation of root development. Because young permanent teeth are not completely developed in form and structure, the permanent teeth have the characteristics of thick root canals, thin canal walls, large pulp cavities, wide apical foramen and the like, once tooth pulp is necrotic, tooth roots stop developing, the canal walls are weak and are short and open, and in severe cases, the long-term growth and development of the teeth can be influenced, the growth and development of alveolar bones can be influenced, and the permanent teeth and the jaw development deformity of children can be caused.

The bone support type needs to fix the fixing device on two sides of the osteotomy line through the fixture, apply traction force on the movable bone block and push the movable bone block to move towards the occlusion direction. However, the fixation device needs to be placed under the mucosa, which is not good for keeping the oral cavity clean and is easy to cause infection of surrounding soft tissues. And needs the secondary surgery to take out, easily causes more scar formation, increases the economic and psychological burden of patients, and based on the above problems, needs a distraction osteogenesis device which has simple clinical operation and does not excessively injure the adjacent teeth and the surrounding soft and hard tissues.

Disclosure of Invention

The invention provides a dentale mixed support type external intraoral distraction osteogenesis device and a use method thereof, solving the problem of difficult osteogenesis distraction operation in the prior art.

The technical scheme of the invention is as follows:

an external intraoral distraction osteogenesis device of mixed supporting type of dental bones, comprising:

the retention pin is used for fixing the cortical bone of the upper end;

the traction nail is used for being fixed on the tooth surface to be adjusted;

the traction piece is used for providing elastic force for keeping the retention nail and the traction nail away from each other.

The pulling member includes:

the spring plate is of a circular ring structure, one side of the spring plate is connected with the fixture, and the other side of the spring plate is connected with the traction nail;

the spring plate is provided with a through hole;

the screw rod penetrates through the through hole in the reed;

the screw rod comprises two nuts, the nuts are arranged at two ends of the screw rod, and traction holes are formed in the nuts.

Further comprising:

the number of the guide tracks is two, and the guide tracks are movably arranged on tooth surfaces on two adjacent sides of the tooth surface to be adjusted;

the guide posts are two, the guide posts are connected with the traction piece, and the guide posts are arranged in the guide rail in a sliding mode.

The guide rail includes:

the track main body is movably arranged on the tooth surfaces at two adjacent sides of the tooth surface to be adjusted, and a sliding groove is formed in the track main body;

the two limiting baffles are arranged at the notch of the sliding groove on the track main body, and the two limiting baffles and the sliding groove form a T-shaped groove;

the guide post includes:

the connecting rod is connected with the reed;

the sliding piece is connected with the connecting rod and is arranged between the limiting baffle and the track main body in a sliding mode.

Further comprising:

and the tension spring is sleeved on the connecting rod and positioned between the limiting baffle and the sliding sheet.

Further comprising:

the slide, the slide sets up on the tooth face of waiting to adjust the adjacent both sides of tooth face, the track main part slides and sets up on the slide.

Further comprising:

the position-fixing plate is connected with the traction piece;

the number of the retention nails is two, and the retention nails are arranged on the retention plate and used for fixing the retention plate.

A method for using a dental bone mixed support type intraoral distraction osteogenesis device, comprising the following steps:

s1: assembling according to the design structure of the dental bone mixed support type intraoral distraction osteogenesis device;

s2: fixedly mounting the slide seat on the tooth surfaces at two adjacent sides of the tooth surface to be adjusted;

s3: fixing the position-retaining plate on the cortex of the upper end by the fixing nails;

s4: fixing a traction piece on the tooth surface to be adjusted through a traction nail;

s5: and the compression reed pulls the tooth surface to be adjusted to a preset position through the adjusting screw rod.

The working principle and the beneficial effects of the invention are as follows:

the invention discloses a tooth bone mixed support type external intraoral distraction osteogenesis device, which comprises three parts, namely a retention nail arranged on the cortical bone mucosa at the upper end after osteotomy, a traction nail arranged on the tooth surface to be adjusted, and a traction piece connected between the retention nail and the traction nail, wherein the traction piece can provide traction force between the retention nail and the traction nail, so that osteogenesis traction effect is realized;

the fixation is realized through the retention nails and the traction nails, the traction piece in the middle realizes the traction of the bone, and the tooth surface to be adjusted is pulled away, so that the function of correction is realized, and the middle part can be realized only by adjusting the traction force of the traction piece, thereby solving the problem of difficult bone-forming traction operation in the prior art;

compared with the prior art, the tooth-supported traction device can cause certain damage to the tooth root, and the installation mode of the bone-supported fixing device can form a soft tissue tunnel below a mucous membrane, so that the oral cavity cleaning is influenced, a 'hotbed' of bacteria and biological membranes is easily formed, and the infection of soft and hard tissues in the mouth is caused. The scheme of the invention is arranged outside the mucous membrane, so that the separation of the bone tissue and the mucous membrane tissue is avoided, and the operation is simpler, more convenient and faster, therefore, the osteogenesis distraction device has more obvious progress advantages.

The invention also discloses a use method of the dental bone mixed support type intraoral distraction osteogenesis device, and by means of the operation method disclosed by the invention, the intraoral distraction osteogenesis device can simply and safely realize bone formation traction and correction, avoid infection of the oral cavity, have compact volume and quick clinical operation, and solve the problem of difficult distraction osteogenesis operation in the prior art.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the structure of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

in the figure: 1. the fixing pin comprises a fixing pin body 2, a traction pin body 3, a traction piece 4, a reed, 5, a screw rod 6, a nut 7, a guide rail 8, a guide post 9, a rail main body 10, a limit baffle 11, a connecting rod 12, a sliding sheet 13, a tension spring 14, a sliding seat 15 and a fixing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.

As shown in fig. 1 to 3, the present embodiment provides an external intraoral distraction osteogenesis device of mixed supporting type for dental bones, comprising:

the fixture pin 1 is used for fixing the fixture pin 1 on the cortex of the upper end;

the traction nail 2 is used for being fixed on the tooth surface to be adjusted;

the traction piece 3 is used for connecting the retention nail 1 and the traction nail 2 by virtue of the traction piece 3, and the traction piece 3 is used for providing elastic force for separating the retention nail 1 from the traction nail 2.

The embodiment discloses an external intraoral distraction osteogenesis device of a dental bone mixed support type, which comprises three parts, namely a retention nail 1 arranged on the cortical bone, a traction nail 2 arranged on the surface of a tooth to be adjusted, a traction part 3 connected between the retention nail 1 and the traction nail 2, and the traction part 3 can provide traction force between the retention nail 1 and the traction nail 2, so that osteogenesis in the height direction of an alveolar bone is realized, and the traction effect of osteogenesis in the height direction of the alveolar bone is structurally ensured;

the fixation is realized through the retention nail 1 and the traction nail 2, the traction of bone formation is realized through the traction piece 3 in the middle, the alveolar bone is heightened and formed, the tooth surface to be adjusted is pulled, and the shape correcting function is realized, the middle part can be realized only by adjusting the traction force of the traction piece 3, and therefore the problem of difficult operation of bone stretching and bone stretching in the prior art is solved;

compared with the prior art, the tooth-supported traction device can cause certain damage to tooth roots, the installation mode of the bone-supported fixing device can form a soft tissue tunnel under a mucous membrane to influence oral cavity cleaning, a hotbed of bacteria and a biomembrane is easily formed, soft and hard tissues in the mouth are infected and hurt the mucous membrane to cause tissue infection and influence oral cavity cleaning, the scheme of the invention is installed outside the bone without damaging the mucous membrane and causing no damage, the scheme of the invention is installed outside the mucous membrane to not separate the bone tissue from the mucous membrane tissue to form the tunnel under the mucous membrane, and the operation is simpler, more convenient and faster, so the distraction osteogenesis traction device has more obvious progress advantages.

The traction element 3 comprises:

the spring plate 4 is of a circular ring structure, one side of the spring plate 4 is connected with the fixing nail 1, and the other side of the spring plate 4 is connected with the traction nail 2;

the reed 4 is provided with a through hole;

the screw rod 5 penetrates through a through hole in the reed 4;

the number of the nuts 6 is two, the nuts 6 are arranged at two ends of the screw rod 5, and a drawing hole is formed in each nut 6.

In this embodiment, the traction member 3 specifically can be a circular ring-shaped reed 4, two ends corresponding to the reed 4 are connected with the retention nail 1 and the traction nail 2, a through hole is formed in the reed 4, the through hole penetrates through a screw 5, nuts 6 are installed at two ends of the screw 5, in the using process, after all the positions are fixed, the nuts 6 on two sides are close to each other, the compression reed 4 contracts, the reed 4 deforms after being compressed, the length of the stretching side is long, the reed 4 generates a tension effect on a bone, therefore, orthopedic lengthening of the bone is realized, an external wrench is utilized, the traction hole of the adjustment nut 6 is inserted, the compression amount of the reed 4 through the adjustment nut 6, the tension of the reed 4 on the bone can be adjusted, the operation is simple and reliable, and the fixed point is outside the bone, so that damage to mucous membranes and tissues is avoided.

Further comprising:

the number of the guide tracks 7 is two, and the guide tracks 7 are movably arranged on tooth surfaces on two adjacent sides of the tooth surface to be adjusted;

the number of the guide posts 8 is two, the guide posts 8 are connected with the traction piece 3, and the guide posts 8 are arranged in the guide track 7 in a sliding mode.

In this embodiment, still install guide rail 7 on the both sides of reed 4, that is to say the tooth face of the adjacent both sides of tooth face of treating to adjust, guide rail 7 is installed on healthy tooth face, and can produce the removal, still be provided with guide post 8 on traction member 3, guide post 8 slides and sets up in guide rail 7, when treating to adjust the tooth face, because in the tractive process, it is inclined deviation probably to appear in the tooth face atress of treating to adjust, lead to final tractive effect probably to appear shifting, so be connected with guide post 8 on traction member 3, guide post 8 is under guide rail 7's restriction, its tractive direction that can hold the reed 4 remains the vertical all the time, thereby avoid the tractive to appear inclining, further promote the accurate reliable of osteogenesis correction.

The guide rail 7 includes:

the track main body 9 is movably arranged on the tooth surfaces at two adjacent sides of the tooth surface to be adjusted, and a sliding groove is formed in the track main body 9;

the number of the limiting baffles 10 is two, the limiting baffles 10 are arranged at the notch of the sliding groove on the track main body 9, and the two limiting baffles 10 and the sliding groove form a T-shaped groove;

the guide post 8 includes:

the connecting rod 11 is connected with the reed 4;

a sliding sheet 12, the sliding sheet 12 with the connecting rod 11 is connected, the sliding sheet 12 slides and sets up the limit baffle 10 with between the track main body 9.

In this embodiment, the guide rail 7 is specifically a rail main body 9 and two limit baffles 10, the rail main body 9 is movably arranged on the tooth surfaces at two adjacent sides of the tooth surface to be adjusted, the rail main body 9 is provided with a sliding groove, the two limit baffles 10 are arranged at the groove opening of the sliding groove, a T-shaped groove is formed on the middle slide way, the guide column 8 is specifically a connecting rod 11, one end of the guide column is connected with the reed 4, the other end is connected with a sliding sheet 12, the sliding sheet 12 slides in a wider groove of the T-shaped groove, the connecting rod 11 slides between two limit baffles 10, the limit baffles 10 have the function of limiting the sliding sheet 12 along the axial direction of the connecting rod 11, therefore, when the connecting rod 11 connected to the slide 12 slides in the T-shaped groove in the guide slide, the verticality of the steel plate can always keep higher precision in the vertical direction, and the stability and the reliability of the drawing of the bone are further improved.

Further comprising:

and the tension spring 13 is sleeved on the connecting rod 11 and is positioned between the limiting baffle 10 and the sliding sheet 12.

In this embodiment, a tension spring 13 is further sleeved on the connecting rod 11, the tension spring 13 is arranged between the limiting baffle 10 and the sliding blade 12, when the tooth surface to be adjusted is pulled, the tension spring 13 not only receives a force in the vertical direction, but also can receive a force in the horizontal plane direction due to a complex tissue environment in the oral cavity, so that the tension spring 13 can absorb a part of the force in the horizontal plane direction, the tooth surface to be adjusted is prevented from receiving a forced restraining force, the injury of the affected tooth and the surrounding tooth tissues thereof is avoided, and the safety and the stability of the tooth surface correction are improved.

Further comprising:

the sliding seat 14 is arranged on the tooth surfaces at two adjacent sides of the tooth surface to be adjusted, and the track main body 9 is arranged on the sliding seat 14 in a sliding mode.

In this embodiment, a sliding seat 14 is further arranged on the tooth surfaces of two adjacent sides of the tooth surface to be adjusted, the sliding seat 14 is fixedly arranged, the rail main body 9 is arranged on the sliding seat 14 in a sliding mode, the sliding direction of the rail main body is consistent with the contraction direction of the spring plate 4, and the rail main body is assembled in a split mode, so that adjustment is more flexible.

Further comprising:

the fixing plate 15 is connected with the traction piece 3;

the number of the retention nails 1 is two, and the retention nails 1 are arranged on the retention plate 15 and used for fixing the retention plate 15.

In this embodiment, be a plurality of at bone cortex upper end fixed point, specifically for having increased a solid board 15, solid board 15 is connected with reed 4, and the staple is two, installs solid board 15 with the staple on osteotomy postoperative upper end bone cortex mucous membrane, and is more stable, and solid board 15 contact surface is big, when guaranteeing firmly, and gum tissue and the bone tissue of protection solid board 15 below in the at utmost do not receive the damage.

A method for using a dental bone mixed support type intraoral distraction osteogenesis device, comprising the following steps:

s1: assembling according to the design structure of the dental bone mixed support type intraoral distraction osteogenesis device;

s2: fixedly mounting the slide seat 14 on the tooth surfaces at two adjacent sides of the tooth surface to be adjusted;

s3: the position-fixing plate 15 is fixed on the cortex of the upper end by the fixing nail 1;

s4: the traction piece 3 is fixed on the tooth surface to be adjusted through the traction nail 2;

s5: the compression reed 4 pulls the tooth surface to be adjusted to a predetermined position by the adjusting screw 5.

In the embodiment, the utility model discloses a use method of a dental bone mixed support type intraoral distraction osteogenesis device, by means of the operation method of the invention, the external intraoral distraction osteogenesis device with the dental bone mixed support disclosed by the invention is firstly assembled according to the design structure, after the assembly is finished, firstly, a sliding seat 14 is arranged on the tooth surface, the heights of both sides are adjusted to be consistent and the sliding seat is arranged on a plane, the retention plate 15 is fixed at the upper end of the cortical bone by the retention nail 1, and finally the traction nail 2 is fixed on the tooth surface to be adjusted, these are all arranged outside the tooth surface, according to the traction condition, the compression degree of the nut 6 pressing the reed 4 is adjusted, therefore, the traction force is controlled, the bone formation traction correction in the alveolar bone height direction can be simply and safely realized, the oral cavity infection is avoided, the size is compact, the clinical operation is quick, and the problem of difficult bone formation traction operation in the prior art is solved.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.