阅读说明：本技术 正颌颌间牵引钉置钉导向装置 (Nail-placing guide device for traction nail between jaw and jaw ) 是由 肖文林 王子龙 王婷 岳金 许尧祥 于 2020-12-23 设计创作，主要内容包括：本发明公开了一种正颌颌间牵引钉置钉导向装置,该装置包括固定部和导向部,所述固定部和导向部一体式连接,所述固定部与人体牙齿相适配,且所述固定部固定在人体牙齿上,所述导向部上设置有导向通道,牵引钉沿着导向通道滑动导入。固定部用于与人体牙齿的固定,实现将该导向装置固定在牙齿上,导向部用于实现对牵引钉的置钉的导向作用,通过导向通道的设置,牵引钉通过导向通道即可滑动到指定的位置上,完成牵引钉的准确置钉,实现定位功能。并且导向通道又具备限位功能,牵引钉沿着导向通道,即可确定置钉的方向,且置钉过程中不会发生偏移,保证置钉的准确高效。(The invention discloses a device for guiding a traction nail to be placed in a maxillomandibular space, which comprises a fixing part and a guiding part, wherein the fixing part is integrally connected with the guiding part, the fixing part is matched with teeth of a human body, the fixing part is fixed on the teeth of the human body, a guiding channel is arranged on the guiding part, and the traction nail is guided in along the guiding channel in a sliding manner. The fixing part is used for fixing with human tooth, realizes fixing this guider on tooth, and the guide part is used for realizing putting the guide effect of nail to pulling, through the setting of direction passageway, pulls on the nail can slide appointed position through the direction passageway, accomplishes the accuracy of pulling the nail and puts the nail, realizes locate function. And the guide channel has limit function again, pulls the nail along the guide channel, can confirm to put the direction of nail, and puts the nail in-process and can not take place the skew, guarantees to put the accurate high efficiency of nail.)

1. The utility model provides a positive jaw intertrochanteric pulls nail and puts nail guider, the device includes fixed part and guide part, fixed part and guide part integral type are connected, its characterized in that, fixed part and human tooth looks adaptation, just the fixed part is fixed on human tooth, be provided with the direction passageway on the guide part, pull the nail and slide along the direction passageway and lead in.

2. The orthognathic maxillofacial traction nail placing guide device according to claim 1, wherein a guide cylinder is arranged on the guide part, and the inner side wall of the guide cylinder forms the guide channel.

3. The orthognathic maxillofacial traction nail placement guide device according to claim 1, wherein the fixing portion is wrapped around the inner and outer sides of the human teeth.

4. The orthognathic maxillofacial traction nail placing guide device according to claim 2, wherein the guide cylinder is formed by enclosing more than two arc-shaped cover plates, the more than two arc-shaped cover plates are connected through a connecting piece, and the more than two arc-shaped cover plates are separated from each other after the connecting piece is broken.

5. The orthognathic maxillofacial traction nail placing guide device according to claim 1, wherein a connecting rod extends from the fixing part, and the guide part is fixedly connected with the fixing part through the connecting rod; the connecting rod is provided with a bending part, and after the bending part is subjected to bending deformation, the position of the guide channel is changed in a reflecting manner.

6. The orthognathic maxillomandibular distraction nail placement guide device of claim 1, wherein the guide channel is manufactured according to the desired location and contour of the distraction nail.

7. The orthognathic maxillofacial traction nail placement guide device according to claim 5, wherein the fixing portion, the guide portion and the connecting rod each comprise a safe material for biocompatibility and cytotoxicity detection.

8. The manufacturing method of the orthognathic maxillofacial traction nail placing guide device according to claim 1, which is characterized in that the manufacturing method of the guide device comprises the following specific steps:

s1: obtaining an intraoral scan model of a patient by an intraoral scanner;

s2: importing data information in the mouth of a patient, which is acquired by an intraoral scanner, into 3D modeling software to form a three-dimensional oral cavity model;

s3: designing the placement of traction nails on the three-dimensional oral cavity model according to 3D modeling software;

s4: designing a guide device according to the three-dimensional oral cavity model and the placement position of the traction nail;

s5: the guide is printed out according to 3D printing techniques.

Technical Field

The invention belongs to the technical field of an interjawbone operation, and particularly relates to a nail placing guide device for a traction nail between a right jaw and a jaw.

Background

As the living standard of people is improved, the aesthetic requirements of people are improved to a certain extent, but the malocclusion has a certain proportion in the crowd, so that the crowd in orthodontic and orthognathic combined treatment is gradually increased, and in the preoperative and postoperative treatment process of orthognathic surgery, traction nails and nail placement are required to be carried out to complete the inter-jaw traction or prevent the teeth in orthodontic correction from moving. The position of the traction nail is important for correcting the teeth, so that how to ensure the accurate implantation of the traction nail has important significance for the treatment of orthognathic surgery.

In the patent of "CN 203138668U" entitled "positioning guide member for implant jaw traction nail", a positioning guide member for implant jaw traction nail is disclosed, which comprises a dentition fixing model paste, a titanium nail guide ring and a connecting rod, wherein the dentition fixing model paste is sleeved on the dentition, a guide hole for positioning the traction nail is arranged in the center of the titanium nail guide ring, and a notch for enabling the traction nail to enter the guide hole laterally is arranged on one side of the titanium nail guide ring.

The positioning guide component positions and positions the traction nail according to the side film and the panoramic film image by virtue of the clinical experience of a doctor, excessively depends on the experience of the doctor, has high uncertainty, and is easy to cause the unreasonable nail position, so that the traction nail can cause certain damage or certain compression to teeth and tooth roots, and the displacement of the postoperative teeth is influenced.

Disclosure of Invention

In order to solve the above problems, the primary object of the present invention is to provide a device for guiding a traction nail into a maxillo-mandibular space, which realizes accurate guiding of the traction nail and ensures structural stability during use.

The invention also aims to provide a device for guiding the traction nail in the orthognathic and maxillofacial space, which can ensure the accuracy of the traction nail guiding without the deviation of the traction nail in the using process.

Still another object of the present invention is to provide a method for manufacturing a guide device for placing a traction nail between an orthognathic jaw space, which is constructed and shaped according to a 3D printing technique, and which is more conformable to a dental structure and has a higher degree of conformity.

In order to achieve the above object, the technical solution of the present invention is as follows.

The utility model provides a positive jaw intertrochanteric pulls nail and puts nail guider, the device includes fixed part and guide part, fixed part and guide part integral type are connected, its characterized in that, fixed part and human tooth looks adaptation, just the fixed part is fixed on human tooth, be provided with the direction passageway on the guide part, pull the nail and slide along the direction passageway and lead in. The fixing part is used for fixing with human tooth, realizes fixing this guider on tooth, and the guide part is used for realizing putting the guide effect of nail to pulling, through the setting of direction passageway, pulls on the nail can slide appointed position through the direction passageway, accomplishes the accuracy of pulling the nail and puts the nail, realizes locate function. And the guide channel has limit function again, pulls the nail along the guide channel, can confirm to put the direction of nail, and puts the nail in-process and can not take place the skew, guarantees to put the accurate high efficiency of nail.

Further, a guide cylinder is arranged on the guide part, and the inner side wall of the guide cylinder forms the guide channel. The setting of guide cylinder utilizes its inside wall to drawing the support of nail and holding and spacing function, guarantees to draw the nail and can slide to appointed position smoothly.

Further, the fixing parts are wrapped on the inner side and the outer side of the teeth of the human body. The fixing part is wrapped on the inner side and the outer side of the tooth instead of the traditional wrapping of the whole tooth, so that the fixing part is not limited by whether a gap exists between the teeth or not in the using process.

Furthermore, the guide cylinder is enclosed by more than two arc-shaped cover plates to form, and the more than two arc-shaped cover plates are connected through a connecting piece, and after the connecting piece is broken, the more than two arc-shaped cover plates are separated from each other. The setting of connecting piece makes can enclose between several arc apron and closes and form the direction passageway, guarantees to pull the accurate positioning of nail, and the fracture of connecting piece is pulling the nail and puts into the in-process, and the lateral wall of extrusion guide cylinder arrives, and this connecting piece explains after the fracture that to pull the nail and has put into certain degree of depth, satisfies accurate position demand, and the fracture of connecting piece this moment can make things convenient for removing of guider, makes things convenient for this guider's use.

Furthermore, a connecting rod extends from the fixing part, and the guide part is fixedly connected with the fixing part through the connecting rod; the connecting rod is provided with a bending part, and after the bending part is subjected to bending deformation, the position of the guide channel is changed in a reflecting manner. The connecting rod is arranged, so that the guide channel can be arranged between the jaws of the orthognathic jaw, and the connecting rod can be arranged in different curved shapes according to the position of the guide channel so as to meet the requirement of the position of the guide channel.

Further, the guide channel is manufactured according to the desired position and contour of the traction peg. The position of the guide channel is set according to medical needs. The guide channel arranged according to the profile of the traction nail also ensures that the traction nail can be accurately placed according to the guide channel.

Further, the fixing portion, the guide portion and the connecting rod all comprise safe materials with biocompatibility and cytotoxicity detection. The guide device is convenient to use.

Further, the device is integrally processed and manufactured by a 3D printing technology. By using the 3D printing technology, the fixing part which can be stably kept on the teeth and the guide channel with accurate position can be produced according to the position and the contour of the teeth of the human body.

Further, the manufacturing method of the guide device comprises the following specific steps:

s1: obtaining an intraoral scan model of a patient by an intraoral scanner;

s2: importing data information in the mouth of a patient, which is acquired by an intraoral scanner, into 3D modeling software to form a three-dimensional oral cavity model;

s3: designing the placement of traction nails on the three-dimensional oral cavity model according to 3D modeling software;

s4: designing a guide device according to the three-dimensional oral cavity model and the placement position of the traction nail;

s5: the guide is printed out according to 3D printing techniques.

The oral cavity of a patient is scanned, the oral cavity structure is modeled and designed, the position of a traction nail is designed on the basis of an oral cavity model, the placing positions of the traction nail are arranged according to the oral cavity model, the model of the guide device is designed, the model of the guide device is printed by using a 3D printing technology, the guide device manufactured by modeling and 3D printing is integrated, the guide device can be attached to teeth of a human body, the stability of the guide device in the using process is ensured, the position of a guide channel manufactured by using the method is more accurate, and the guiding accuracy of the traction nail is ensured. The depth of the guide channel can be increased by increasing the thickness of the guide device, so that the guide channel forms a guide cylindrical structure.

The guide device is fixed on the teeth through the fixing part, the guide part is used for guiding the nail placing of the traction nail, and the traction nail can slide to a specified position through the guide channel through the arrangement of the guide channel, so that the accurate nail placing of the traction nail is completed, and the positioning function is realized. And the guide channel has limit function again, pulls the nail along the guide channel, can confirm to put the direction of nail, and puts the nail in-process and can not take place the skew, guarantees to put the accurate high efficiency of nail.

Drawings

Fig. 1 is a schematic diagram of a first viewing angle of the present invention.

Fig. 2 is a schematic diagram of a second viewing angle according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-2, the orthognathic maxillo-mandibular traction nail placing guide device comprises a fixing part 1 and a guide part 2, wherein the fixing part 1 and the guide part 2 are integrally connected, the fixing part 1 is adapted to teeth of a human body, the fixing part 1 is fixed on the teeth of the human body, a guide channel 21 is arranged on the guide part 2, and a traction nail (not shown) is slidably guided along the guide channel 21. Fixed part 1 is used for with the fixed of human tooth, realizes fixing this guider on the tooth, and guide part 2 is used for realizing putting the guide effect of nail to pulling, through the setting of direction passageway 21, pulls the nail and can slide to appointed position through direction passageway 21, accomplishes the accuracy of pulling the nail and puts the nail, realizes locate function. And guide way 21 possesses limit function again, pulls the nail along guide way 21, can confirm to put the direction of nail, and puts the nail in-process and can not take place the skew, guarantees to put the accuracy high efficiency of nail.

Wherein, a guide cylinder 22 is arranged on the guide part 2, and the inner side wall of the guide cylinder 22 forms the guide channel 21. The guide cylinder 22 ensures that the traction nail can smoothly slide to a designated position by utilizing the abutting and limiting functions of the inner side wall of the guide cylinder on the traction nail.

Wherein the fixing part 1 is wrapped on the inner and outer sides of the teeth of the human body. The fixing part 1 is wrapped on the inner side and the outer side of the tooth instead of the traditional wrapping of the whole tooth, so that the fixing part is not limited by whether a gap exists between the teeth or not in the using process, and the fixing part 1 can form a clamping and fixing structure on the inner side and the outer side of the tooth, is flexible in structure and is more convenient to use.

The guide cylinder 22 is formed by enclosing more than two arc-shaped cover plates 221, the more than two arc-shaped cover plates 221 are connected through a connecting piece 222, and after the connecting piece 222 is broken, the more than two arc-shaped cover plates 221 are separated from each other. The arrangement of the connecting piece 222 enables the arc-shaped cover plates 221 to be enclosed to form the guide channel 21, so that accurate positioning of the traction nail is guaranteed, the fracture of the connecting piece 222 is achieved by extruding the side wall of the guide cylinder 22 in the traction nail placing process, the connecting piece 222 indicates that the traction nail is placed to a certain depth after the fracture, the accurate position requirement is met, the fracture of the connecting piece 222 can facilitate the removal of the guide device, and the guide device is convenient to use.

A connecting rod 11 extends from the fixing part 1, and the guide part 2 is fixedly connected with the fixing part 1 through the connecting rod 11; the connecting rod 11 is provided with a bending part 12, and after the bending part 12 is subjected to bending deformation, the position of the guide channel 21 is changed in a reaction way. The connecting rod 11 is arranged to enable the guide channel 21 to be arranged between the jaws of the orthognathic jaw, and the connecting rod 11 can be arranged in different bending shapes according to the position of the guide channel 21 so as to meet the requirement of the arrangement position of the guide channel 21.

Wherein said guide channel 21 is manufactured according to the desired position and contour of the towing pin. The position of the guide channel 21 is set according to medical needs. The guide channel 21 arranged according to the profile of the traction nail also ensures that the traction nail can be accurately placed according to the guide channel 21.

Wherein, the fixing part 1, the guiding part 2 and the connecting rod 11 all comprise safe materials with biocompatibility and cytotoxicity detection. The guide device is convenient to use.

Wherein, the device is made by 3D printing technique integral type processing. By using the 3D printing technology, the fixing part 1 which can be stably kept on the teeth and the guide channel 21 with accurate position can be produced according to the position and the contour of the teeth of the human body.

The manufacturing method of the guide device comprises the following specific steps:

s1: obtaining an intraoral scan model of a patient by an intraoral scanner;

s2: importing data information in the mouth of a patient, which is acquired by an intraoral scanner, into 3D modeling software to form a three-dimensional oral cavity model;

s3: designing the placement of traction nails on the three-dimensional oral cavity model according to 3D modeling software;

s4: designing a guide device according to the three-dimensional oral cavity model and the placement position of the traction nail;

s5: the guide is printed out according to 3D printing techniques.

The oral cavity of a patient is scanned, the oral cavity structure is modeled and designed, the position of a traction nail is designed on the basis of an oral cavity model, the placing positions of the traction nail are arranged according to the oral cavity model, the model of the guide device is designed, the model of the guide device is printed by using a 3D printing technology, the guide device manufactured by modeling and 3D printing is integrated, the guide device can be attached to teeth of a human body, the stability of the guide device in the using process is ensured, the position of a guide channel manufactured by using the method is more accurate, and the guiding accuracy of the traction nail is ensured. The depth of the guide channel can be increased by increasing the thickness of the guide device, so that the guide channel forms a guide cylindrical structure.

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