WO2006111049A1 - Auxiliary device for plastic operation of the mandibular angle - Google Patents

Auxiliary device for plastic operation of the mandibular angle Download PDF

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Publication number
WO2006111049A1
WO2006111049A1 PCT/CN2005/000759 CN2005000759W WO2006111049A1 WO 2006111049 A1 WO2006111049 A1 WO 2006111049A1 CN 2005000759 W CN2005000759 W CN 2005000759W WO 2006111049 A1 WO2006111049 A1 WO 2006111049A1
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Prior art keywords
mandibular angle
limiting piece
piece
outer side
mandibular
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PCT/CN2005/000759
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French (fr)
Chinese (zh)
Inventor
Pengwu Zhou
Ming Li
Yahua Tian
Wenting Ding
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Pengwu Zhou
Ming Li
Yahua Tian
Wenting Ding
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Application filed by Pengwu Zhou, Ming Li, Yahua Tian, Wenting Ding filed Critical Pengwu Zhou
Publication of WO2006111049A1 publication Critical patent/WO2006111049A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
    • A61B17/8071—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones for the jaw
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8085—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with pliable or malleable elements or having a mesh-like structure, e.g. small strips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/28—Bones
    • A61F2/2803—Bones for mandibular reconstruction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/28—Bones
    • A61F2/2803—Bones for mandibular reconstruction
    • A61F2002/2807—Chin implants

Definitions

  • the present invention relates to the field of medical plastic surgery, and more particularly to a method and apparatus that can be used for a predetermined shaping range before a mandibular angle plastic surgery and that can accurately indicate a predetermined shaping range during surgery.
  • the mandible is arched and consists of a horizontal mandibular body and a vertical mandibular ascending branch.
  • the intersection of the mandibular body and the mandibular ascending branch is called the mandibular angle.
  • the size of the mandibular angle varies greatly, generally about 120°. The appearance should look like there should be no obvious angularity.
  • the mandibular angle hypertrophy mainly includes two aspects: First, the angle of the mandibular angle is too small, showing the word “ ⁇ ” Face, for women, it seems to be lack of beauty in terms of oriental aesthetics. Second, the mandibular valgus is thickened, making the face trapezoidal.
  • Mandibular angle hypertrophy is not morbid. It is only a developmental defect that affects the human body in vitro. Therefore, medical treatment is not required, but its defects can be corrected by the whole cosmetic surgery technique.
  • the limitations of the range of mandibular angle resection in all currently known procedures are controlled by the following methods.
  • 1 According to the preoperative predetermined general resection range, the osteotomy operation is completed according to the surgeon's experience; 2 according to the preoperative predetermined resection range, the line osteotomy method is adopted, that is, the osteotomy line is drawn first, and then the line is used to complete the osteotomy. Operation; 3 according to the pre-operative predetermined resection range, using the corresponding template to complete the osteotomy operation.
  • the disadvantages of the above methods 1 and 2 are obvious.
  • the disadvantage of the method 3 is that the individualized differences of the different subjects cannot be satisfied, and since the plexiglass template cannot be in close contact with the mandibular angle, the actual osteotomy range may have a large error with the expectation.
  • the technical solution of the present invention is to provide a mandibular angle shaping auxiliary device, comprising a limiting piece and two fixing pieces respectively located on an outer side of the limiting piece, the fixing piece being bendable along the outer side of the limiting piece
  • the folding manner is connected to the limiting piece, and the inner side of the limiting piece matches the predetermined cutting line.
  • the outer side of the limiting piece matches the contour line of the mandible angle.
  • the length of the horizontal portion of the outer side of the limiting piece is smaller than the length of the lower jaw body, and the length of the vertical portion is smaller than the length of the lower jaw raising.
  • the fixing pieces are respectively located on the outer side of the limiting piece Both ends
  • the thickness of the limiting piece and the fixing piece is 0.5 to 2 mm.
  • the invention also provides a preparation method of a mandibular angle shaping auxiliary device, comprising the following steps: (a) obtaining a cut line shape data; (b) forming a limit piece with the cut line shape data as an inner side, and respectively Two fixing pieces on the outer side of the limiting piece, the fixing piece being connected to the limiting piece in a manner of being bendable along the outer side of the limiting piece, the inner side of the limiting piece is predetermined The cut lines match.
  • the step (a) further includes the step of acquiring a mandibular angle parameter.
  • the acquiring mandibular angle shape data is acquired by a CT scanning method.
  • the step (b) further comprises the step of fabricating the outer side of the limiting piece matched with the mandibular angle based on the mandibular angle morphology data.
  • the length of the horizontal portion of the outer side of the limiting piece is smaller than the length of the mandible body, and the length of the vertical portion is smaller than the length of the lower jaw.
  • the mandibular angle shaping assisting device and the preparation method thereof of the invention improve the effect of the mandibular plastic surgery by providing the limiting piece so that the predetermined resection range shape is completely consistent with the actual shape.
  • the lower alveolar vascular nerve bundle in the medullary cavity of the mandible can be effectively protected from damage.
  • Figure 1 is a schematic illustration of the exact extent of resection of a preoperative predetermined formation of the present invention.
  • Fig. 2 is a plan view showing the mandibular angle shaping assisting device of the present invention.
  • Figure 3 is a perspective view of the mandibular angle shaping aid of Figure 2;
  • Fig. 4 is a view showing the state of use of the mandibular angle shaping assisting device of the present invention.
  • the shape data of the mandibular angle resection range must first be obtained in the shaping of the mandibular angle 1.
  • the morphological parameters of the mandibular angle 1 on both sides can be acquired using existing CT scans or X-rays, and then the position and shape of the predetermined resection range 6 of the mandibular angle 1 can be obtained with the aid of a computer plane or three-dimensional image technique, the predetermined resection range 6 There is a cut line 5.
  • the process of obtaining the position and shape of the predetermined resection range 6 can be performed with reference to aesthetic and medical criteria. Of course, the process of obtaining the position and shape of the cut-out range 6 can also be achieved by drawing directly on the drawing.
  • the mandibular angle shaping assisting device can be made based on the morphological data of the mandibular angle 1 and the resection line 5 obtained as described above.
  • the limiting device can be produced in accordance with the mandibular angle 1 outputted by 1:1 and the mandibular lateral plane of the resection line 5.
  • the mandibular angle shaping assisting device comprises a limiting piece 2 and two fixing pieces 3, 4 located at the ends of the outer side edges 8 of the limiting piece 2, respectively.
  • the fixing pieces 3, 4 are members of the defining piece 2, which are joined to the limiting piece in such a manner as to be bendable along the outer side edge 8 of the limiting piece (dashed line as shown in Fig. 2).
  • the inner side 7 of the limiting piece 2 is matched with a predetermined cutting line 5
  • the outer side 8 of the limiting piece 2 is matched with the side contour of the lower jaw angle 1
  • the horizontal portion of the outer side of the limiting piece 2 is The length is smaller than the length of the mandible, and the length of the vertical portion is smaller than the length of the lower jaw, so that the shape and size of the limiting piece 2 are substantially the same as the predetermined cutting range.
  • the fixing pieces 3, . 4 of the limiting device can be bent along the outer side edge 8 of the limiting piece 2 to respectively abut the vertical jaw and the horizontal position of the lower jaw.
  • the shape in which the fixing pieces 3, 4 in use are in contact with the limiting piece 2 is curved.
  • the medical device is made of medical metal plates (such as stainless steel, alloy materials, etc.), and its thickness is generally rooted. According to the hardness of the material, 0.5 ⁇ 2 mm is used (to be able to bend the same piece). Of course, the material and thickness of the limiting device are not limited to those described above.
  • the limiting device of the present invention has the outer side edge 8 of the limiting piece 2 aligned with the edge of the mandibular angle 1, and the fixing pieces 3, 4 are respectively placed at the trailing edge and the lower edge of the mandibular angle 1, while being externally pressed to fix The pieces 3 and 4 are respectively attached to the trailing edge and the lower edge of the mandibular angle.
  • the micro-bone saw is placed and the kerf is accurately cut along the inner side 7 of the stop piece 2.
  • the outer side 8 is positioned to define the position of the device in use, and the position of the fixed piece is used to position the defining device. That is, the bending direction of the fixing pieces 3, 4 located at different positions on the outer side 8 of the positioning piece 2 is used to position the limiting device, but the positioning of the solution may not be accurate enough.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Neurology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Vascular Medicine (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Cardiology (AREA)
  • Transplantation (AREA)
  • Dentistry (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Prostheses (AREA)

Abstract

An auxiliary device for plastic operation of the mandibular angle includes localizing piece (2) and two securing pieces (3,4) positioned to the outside edge (8) of the localizing piece (2) respectively, the said securing pieces (3,4) are connected to the said localizing piece (2) in such a manner that it may bend along the outside edge (8) of the localizing piece (2), the inside edge (7) of the localizing piece (2) matches the predefined cutting line(5).

Description

下颌角整形辅助装置及其制备方法  Mandibular angle shaping auxiliary device and preparation method thereof
技术领域 本发明涉及医学整形美容外科领域， 尤其涉及一种能用于下颌角整形手术 前预定整形范围， 并能在术中准确指示预定整形范围的方法及器具。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of medical plastic surgery, and more particularly to a method and apparatus that can be used for a predetermined shaping range before a mandibular angle plastic surgery and that can accurately indicate a predetermined shaping range during surgery.
背景技术 Background technique
下颌骨呈弓形， 由水平的下颌体和垂直的下颌升支组成。 下颌体与下颌升 支相交部称为下颌角。 下颌角大小个体差异较大， 一般为 120° 左右， 外观看 起来， 应没有明显棱角， 而下颌角肥大者， 主要包括两方面的情况： 一是下颌 角的角度过小， 呈现"国"字脸， 对于女性按东方审美观而言就显得缺乏美感。 二是下颌骨外翻增厚， 使得脸形呈梯形， 对于女性而言从侧面看似男性的下颌 角， 缺乏柔和、 流畅的轮廓， 同样缺乏美感。 下颌角肥大并非病态， 仅属于影 响人体外在美的一种发育上的缺憾， 因此， 无须医学治疗， 但其缺憾可通过整 形美容外科技术得以矫正。  The mandible is arched and consists of a horizontal mandibular body and a vertical mandibular ascending branch. The intersection of the mandibular body and the mandibular ascending branch is called the mandibular angle. The size of the mandibular angle varies greatly, generally about 120°. The appearance should look like there should be no obvious angularity. The mandibular angle hypertrophy mainly includes two aspects: First, the angle of the mandibular angle is too small, showing the word “国” Face, for women, it seems to be lack of beauty in terms of oriental aesthetics. Second, the mandibular valgus is thickened, making the face trapezoidal. For women, the male jaw angle appears from the side, lacking a soft, smooth outline, and also lacks aesthetics. Mandibular angle hypertrophy is not morbid. It is only a developmental defect that affects the human body in vitro. Therefore, medical treatment is not required, but its defects can be corrected by the whole cosmetic surgery technique.
下颌角内部无明显大骨髓腔， 主要为松质骨， 可以作为下颌角整形手术的 解剖学基础。 对于下颌角肥大的整形手术， 主要有口内、 口外和口内外联合入 路三种方式。  There is no obvious large bone marrow cavity inside the mandibular angle, mainly cancellous bone, which can be used as the anatomical basis of mandibular angle plastic surgery. For plastic surgery of mandibular angle hypertrophy, there are three main ways: intraoral, extraoral, and intraoral and extraoral.
目前， 公知的所有术式术前对下颌角切除范围的预定均通过以下几种方法 进行设计。 ①通过照相机拍摄头颅正侧位片和下颌骨全景片， 检查下颌角肥大 的程度， 采用电脑模拟下颌角缩小手术效果， 征得术者认可后即可进行手术。 ②直接在受术者体表示意确定下颌角截除的范围； ③通过拍摄双侧下颌角骨体 的 X线片， 与术者商榷取得截骨范围的共识。 ④预制多种不同角度， 不同大小 的有机玻璃模板， 根据所需截骨范围挑选相应模板备用。 由于上述方法均无法获得受术者下颌角准确形态数据， 因此， 尽管术前看 似已与受术者充分沟通并已取得切除范围的共识， 但事实上双方均无法对切除 范围进行量化限定， 所谓术前 "共识"只不过是一种双方均缺乏可操作性 （无 法量度） 的 "模糊"约定。 At present, all the well-known preoperative procedures for the range of mandibular angle resection are designed by the following methods. 1 Through the camera to shoot the positive side of the skull and the mandible panoramic film, to check the degree of mandibular angle hypertrophy, the use of computer simulation of the mandibular angle to reduce the surgical effect, the surgery can be approved by the surgeon. 2 directly in the recipient's body to determine the extent of the mandibular angle cut; 3 by taking the X-ray film of the bilateral mandibular angle bone, and the surgeon to discuss the scope of osteotomy. 4 Prefabricate a variety of plexiglass templates of different angles and sizes, and select the appropriate template for use according to the required osteotomy range. Because the above methods can not obtain accurate morphological data of the mandibular angle of the subject, therefore, although the preoperative seems to have fully communicated with the subject and has obtained the consensus of the scope of resection, in fact, neither side can quantify the scope of resection. The so-called pre-existing "consensus" is nothing more than a "fuzzy" agreement that both parties lack operability (cannot measure).
另外， 目前公知的所有术式术中对下颌角切除范围的限定均通过下列方法 进行控制。 ①根据术前预定的大致切除范围， 凭术者经验完成截骨操作; ②根 据术前预定的大致切除范围， 采用画线截骨法， 即先画出截骨线， 后接此线完 成截骨操作；③根据术前预定的大致切除范围，使用相应的模板完成截骨操作。  In addition, the limitations of the range of mandibular angle resection in all currently known procedures are controlled by the following methods. 1 According to the preoperative predetermined general resection range, the osteotomy operation is completed according to the surgeon's experience; 2 according to the preoperative predetermined resection range, the line osteotomy method is adopted, that is, the osteotomy line is drawn first, and then the line is used to complete the osteotomy. Operation; 3 according to the pre-operative predetermined resection range, using the corresponding template to complete the osteotomy operation.
上述方法①、 ②的缺点显而易见， 方法③的缺点是无法满足不同受术者个 性化差异， 同时由于有机玻璃模板无法紧贴下颌角， 故实际截骨范围会与预期 产生较大误差。  The disadvantages of the above methods 1 and 2 are obvious. The disadvantage of the method 3 is that the individualized differences of the different subjects cannot be satisfied, and since the plexiglass template cannot be in close contact with the mandibular angle, the actual osteotomy range may have a large error with the expectation.
由此可见， 现有技术存在术前无法准确预定切除范围、 术中无法限定切除 范围等难以克服的缺陷及医患纠纷。  It can be seen that the prior art has insurable defects and medical disputes that cannot be accurately determined before surgery, and the scope of resection cannot be limited during surgery.
发明内容 Summary of the invention
本发明的目的在于， 提供一种下颌角整形辅助装置及其制备方法， 以解决 现有下颌角切除中不能准确限定的问题。  It is an object of the present invention to provide a mandibular angle shaping assisting device and a method of manufacturing the same to solve the problem that cannot be accurately defined in the current mandibular angle resection.
本发明的技术方案是， 提供一种下颌角整形辅助装置， 包括限位片以及分 别位于限位片的外侧边的两个固定片， 所述固定片以可沿限位片的外侧弯折的 方式与所述限位片连接， 所述限位片的内侧边与预定切除线相匹配。  The technical solution of the present invention is to provide a mandibular angle shaping auxiliary device, comprising a limiting piece and two fixing pieces respectively located on an outer side of the limiting piece, the fixing piece being bendable along the outer side of the limiting piece The folding manner is connected to the limiting piece, and the inner side of the limiting piece matches the predetermined cutting line.
上述的下颌角整形辅助装置中， 所述限位片的外侧边与下颌角侧面轮廓线 相匹配。  In the above-mentioned mandibular angle shaping assisting device, the outer side of the limiting piece matches the contour line of the mandible angle.
上述的下颌角整形辅助装置中， 所述限位片外侧边的水平部分的长度小于 下颌体长度、 垂直部分的长度小于下颌升支的长度。  In the above-mentioned mandibular angle shaping assisting device, the length of the horizontal portion of the outer side of the limiting piece is smaller than the length of the lower jaw body, and the length of the vertical portion is smaller than the length of the lower jaw raising.
上述的下颌角整形辅助装置中， 所述固定片分别位于所述限位片外侧边的 两端 In the above-mentioned mandibular angle shaping auxiliary device, the fixing pieces are respectively located on the outer side of the limiting piece Both ends
上述的下颌角整形辅助装置中，所述限位片和固定片的厚度为 0.5〜2毫米。 本发明还提供一种下颌角整形辅助装置的制备方法， 包括以下步骤： （a) 获取切除线形态数据； （b) 制作以所述切除线形态数据为内侧边的限位片、 以 及分别位于限位片的外侧边的两个固定片， 所述固定片以可沿限位片的外侧弯 折的方式与所述限位片连接， 所述限位片的内侧边与预定切除线相匹配。  In the above-mentioned mandibular angle shaping aid, the thickness of the limiting piece and the fixing piece is 0.5 to 2 mm. The invention also provides a preparation method of a mandibular angle shaping auxiliary device, comprising the following steps: (a) obtaining a cut line shape data; (b) forming a limit piece with the cut line shape data as an inner side, and respectively Two fixing pieces on the outer side of the limiting piece, the fixing piece being connected to the limiting piece in a manner of being bendable along the outer side of the limiting piece, the inner side of the limiting piece is predetermined The cut lines match.
上述的下颌角整形辅助装置的制备方法中， 步骤（a)还包括获取下颌角形 态参数的步骤。  In the above method for preparing a mandibular angle shaping aid, the step (a) further includes the step of acquiring a mandibular angle parameter.
上述的下颌角整形辅助装置的制备方法中， 所述获取下颌角形态数据通过 CT扫描方式获取。  In the above method for preparing a mandibular angle shaping assisting device, the acquiring mandibular angle shape data is acquired by a CT scanning method.
上述的下颌角整形辅助装置的制备方法中， 步骤（b)还包括根据所述下颌 角形态数据制作与下颌角匹配的限位片外侧边的步骤。  In the above method for preparing a mandibular angle shaping assisting device, the step (b) further comprises the step of fabricating the outer side of the limiting piece matched with the mandibular angle based on the mandibular angle morphology data.
上述的下颌角整形辅助装置的制备方法中， 所述限位片外侧边的水平部分 的长度小于下颌体长度、 垂直部分的长度小于下颌升支的长度。  In the above method for preparing a mandibular angle shaping assisting device, the length of the horizontal portion of the outer side of the limiting piece is smaller than the length of the mandible body, and the length of the vertical portion is smaller than the length of the lower jaw.
本发明的下颌角整形辅助装置及其制备方法， 通过提供限位片， 使得预定 切除范围形态与实际形态完全一致从而提高了下颌骨整形手术的效果。 此外由 于准确限定切除线， 还可以有效保护下颌骨骨髓腔内的下齿槽血管神经束免受 损伤。 '  The mandibular angle shaping assisting device and the preparation method thereof of the invention improve the effect of the mandibular plastic surgery by providing the limiting piece so that the predetermined resection range shape is completely consistent with the actual shape. In addition, due to the accurate definition of the resection line, the lower alveolar vascular nerve bundle in the medullary cavity of the mandible can be effectively protected from damage. '
附图说明 DRAWINGS
下面将结合附图及实施例对本发明下颌角整形辅助装置及其制备方法作进 一步说明， 附图中：  The mandibular angle shaping assisting device and the preparation method thereof according to the present invention will be further described below with reference to the accompanying drawings and embodiments, in which:
图 1是本发明的术前预定形成的准确切除范围的示意图。  BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of the exact extent of resection of a preoperative predetermined formation of the present invention.
图 2是本发明的下颌角整形辅助装置的平面示意图。 图 3是图 2中的下颌角整形辅助装置的立体示意图。 Fig. 2 is a plan view showing the mandibular angle shaping assisting device of the present invention. Figure 3 is a perspective view of the mandibular angle shaping aid of Figure 2;
图 4是本发明的下颌角整形辅助装置的使用状态示意图。  Fig. 4 is a view showing the state of use of the mandibular angle shaping assisting device of the present invention.
具体实施方式 detailed description
下面结合附图和实施例对本发明作进一步描述。  The invention is further described below in conjunction with the drawings and embodiments.
如图 1所示， 由于下颌角 1的形状、 大小因人而异， 因此在下颌角 1的整 形中必须首先获得下颌角切除范围的形态数据。 可使用现有的 CT扫描或 X光 获取两侧的下颌角 1的形态参数， 然后在计算机平面或三维图像技术的辅助下 获取下颌角 1的预定切除范围 6的位置及形状，预定切除范围 6具有切除线 5。 该获取预定切除范围 6的位置及形状的过程可参考美学和医学标准进行。 当然 获取切除范围 6的位置及形状的过程也可通过直接在图纸上描绘来实现。  As shown in Fig. 1, since the shape and size of the mandibular angle 1 vary from person to person, the shape data of the mandibular angle resection range must first be obtained in the shaping of the mandibular angle 1. The morphological parameters of the mandibular angle 1 on both sides can be acquired using existing CT scans or X-rays, and then the position and shape of the predetermined resection range 6 of the mandibular angle 1 can be obtained with the aid of a computer plane or three-dimensional image technique, the predetermined resection range 6 There is a cut line 5. The process of obtaining the position and shape of the predetermined resection range 6 can be performed with reference to aesthetic and medical criteria. Of course, the process of obtaining the position and shape of the cut-out range 6 can also be achieved by drawing directly on the drawing.
可根据上述获取的下颌角 1的形态数据及切除线 5制作下颌角整形辅助装 置，该限定装置可按照 1 : 1输出的下颌角 1以及切除线 5的下颌 侧位平面图 来制作。 如图 2所示， 下颌角整形辅助装置包括限位片 2以及位于分别位于限 位片 2的外侧边 8的端部的两个固定片 3、 4。 固定片 3、 4是与限定片 2—体 的部件， 其以可沿限位片的外侧边 8弯折的方式 （如图 2所示的虚线） 与所述 限位片相接。 限位片 2的内侧边 7与预定切除线 5相匹配， 限位片 2的外侧边 8与下颌角 1的侧面轮廓线相匹配， 并且限位片 2的外侧边的水平部分的长度 小于下颌体长度、 垂直部分的长度小于下颌升支的长度， 从而限位片 2的形状 及大小大致与预定的切除范围 6—致。  The mandibular angle shaping assisting device can be made based on the morphological data of the mandibular angle 1 and the resection line 5 obtained as described above. The limiting device can be produced in accordance with the mandibular angle 1 outputted by 1:1 and the mandibular lateral plane of the resection line 5. As shown in Fig. 2, the mandibular angle shaping assisting device comprises a limiting piece 2 and two fixing pieces 3, 4 located at the ends of the outer side edges 8 of the limiting piece 2, respectively. The fixing pieces 3, 4 are members of the defining piece 2, which are joined to the limiting piece in such a manner as to be bendable along the outer side edge 8 of the limiting piece (dashed line as shown in Fig. 2). The inner side 7 of the limiting piece 2 is matched with a predetermined cutting line 5, the outer side 8 of the limiting piece 2 is matched with the side contour of the lower jaw angle 1, and the horizontal portion of the outer side of the limiting piece 2 is The length is smaller than the length of the mandible, and the length of the vertical portion is smaller than the length of the lower jaw, so that the shape and size of the limiting piece 2 are substantially the same as the predetermined cutting range.
如图 3所示， 在使用时， 限定装置的固定片 3、. 4可沿限位片 2的外侧边 8 弯折，从而分别紧贴垂直位置的下颌升支和水平位置的下颌体。在本实施例中， 处于使用状态的固定片 3、 4与限位片 2相接处的形状为弧形。  As shown in Fig. 3, in use, the fixing pieces 3, . 4 of the limiting device can be bent along the outer side edge 8 of the limiting piece 2 to respectively abut the vertical jaw and the horizontal position of the lower jaw. In the present embodiment, the shape in which the fixing pieces 3, 4 in use are in contact with the limiting piece 2 is curved.
限定装置选用医用金属板材 （如不锈钢、 合金材料等）， 其厚度一般可根 据材料的硬度不同而采用 0.5〜2毫米 （以能够将同定片弯曲为宜）。 当然， 限 定装置的材料和厚度并不限于上面所描述的。 The medical device is made of medical metal plates (such as stainless steel, alloy materials, etc.), and its thickness is generally rooted. According to the hardness of the material, 0.5~2 mm is used (to be able to bend the same piece). Of course, the material and thickness of the limiting device are not limited to those described above.
如图 4所示，在下颌角整形手术中，将骨体完全与其表面的软组织分离（应 特别注意将下颌下缘、 下颌角和下颌角后缘的骨膜尽量剥离干净） 后， 即可放 入本发明的限定装置， 并使限位片 2的外侧边 8与下颌角 1的边缘对齐， 而固 定片 3、 4分别置于下颌角 1的后缘及下缘， 同时在外推紧使固定片 3、 4分别 紧贴下颌角的后缘及下缘。 将微型骨锯放入并使锯口沿限位片 2的内侧边 7准 确进行切除。  As shown in Figure 4, in the mandibular angle plastic surgery, the bone body is completely separated from the soft tissue on the surface (special attention should be paid to peel off the periosteum of the lower mandibular margin, the mandibular angle and the posterior margin of the mandibular angle). The limiting device of the present invention has the outer side edge 8 of the limiting piece 2 aligned with the edge of the mandibular angle 1, and the fixing pieces 3, 4 are respectively placed at the trailing edge and the lower edge of the mandibular angle 1, while being externally pressed to fix The pieces 3 and 4 are respectively attached to the trailing edge and the lower edge of the mandibular angle. The micro-bone saw is placed and the kerf is accurately cut along the inner side 7 of the stop piece 2.
此外， 也可不采用外侧边 8定位限定装置在使用时的位置的方案， 而通过 固定片的位置来定位限定装置的方案。 即采用位于定位片 2外侧边 8不同位置 的固定片 3、 4的弯折方向来定位限定装置， 但该方案的定位可能不够精确。  In addition, it is also possible to use a configuration in which the outer side 8 is positioned to define the position of the device in use, and the position of the fixed piece is used to position the defining device. That is, the bending direction of the fixing pieces 3, 4 located at different positions on the outer side 8 of the positioning piece 2 is used to position the limiting device, but the positioning of the solution may not be accurate enough.

Claims

权 利 要 求 Rights request
1、一种下颌角整形辅助装置， 其特征在于， 包括限位片以及分别位于限位 片的外侧边的两个固定片， 所述固定片以可沿限位片的外侧弯折的方式与所述 限位片连接， 所述限位片的内侧边与预定切除线相匹配。 A mandibular angle shaping auxiliary device, comprising: a limiting piece; and two fixing pieces respectively located on an outer side of the limiting piece, the fixing piece being bendable along an outer side of the limiting piece The manner is connected to the limiting piece, and the inner side of the limiting piece matches the predetermined cutting line.
2、根据权利要求 1所述的下颌角整形辅助装置， 其特征在于， 所述限位片 的外侧边与下颌角侧面轮廓线相匹配。  2. The mandibular angle shaping aid according to claim 1, wherein the outer side of the limiting piece matches the contour line of the mandibular angle.
3、根据权利要求 2所述的下颌角整形辅助装置， 其特征在于， 所述限位片 外侧边的水平部分的长度小于下颌体长度、 垂直部分的长度小于下颌升支的长 度。  The mandibular angle shaping assisting device according to claim 2, wherein the length of the horizontal portion of the outer side of the limiting piece is smaller than the length of the mandible body, and the length of the vertical portion is smaller than the length of the lower jaw.
4、根据权利要求 1所述的下颌角整形辅助装置， 其特征在于， 所述固定片 分别位于所述限位片外侧边的两端。  The mandibular angle shaping assisting device according to claim 1, wherein the fixing pieces are respectively located at both ends of the outer side of the limiting piece.
5、根据权利要求 1所述的下颌角整形辅助装置， 其特征在于， 所述限位片 和固定片的厚度为 0.5〜2毫米。  The mandibular angle shaping assisting device according to claim 1, wherein the limiting piece and the fixing piece have a thickness of 0.5 to 2 mm.
6、 一种下颌角整形辅助装置的制备方法， 其特征在于， 包括以下步骤： 6. A method for preparing a mandibular angle shaping aid, comprising the steps of:
(a) 获取切除线形态数据； (a) Obtaining cut line morphology data;
(b)制作以所述切除线形态数据为内侧边的限位片、以及分别位于限位片 的外侧边的两个固定片， 所述固定片以可沿限位片的外侧弯折的方式与所述限 位片连接， 所述限位片的内侧边与预定切除线相匹配。  (b) producing a stopper piece having the inner side of the cut line form data, and two fixing pieces respectively located at outer sides of the limit piece, the fixed piece being bendable along the outer side of the limit piece The folding manner is connected to the limiting piece, and the inner side of the limiting piece matches the predetermined cutting line.
7、 根据权利要求 6所述的下颌角整形辅助装置的制备方法， 其特征在于， 步骤 （a) 还包括获取下颌角形态参数的步骤。  7. The method of preparing a mandibular angle shaping assisting device according to claim 6, wherein the step (a) further comprises the step of acquiring a mandibular angle morphological parameter.
8、 根据权利要求 6所述的下颌角整形辅助装置的制备方法， 其特征在于， 所述获取下颌角形态数据通过 CT扫描方式获取。 The method for preparing a mandibular angle shaping assisting device according to claim 6, wherein the acquiring mandibular angle shape data is acquired by a CT scanning method.
9、 根据权利要求 7所述的下颌角整形辅助装置的制备方法， 其特征在于， 步骤（b)还包括根据所述下颌角形态数据制作与下颌角匹配的限位片外侧边的 步骤。 9. The method of manufacturing a mandibular angle shaping assisting device according to claim 7, wherein the step (b) further comprises the step of fabricating the outer side of the limiting piece matched with the mandibular angle based on the mandibular angle morphology data.
10、根据权利要求 9所述的下颌角整形辅助装置的制备方法，其特征在于， 所述限位片外侧边的水平部分的长度小于下颌体长度、 垂直部分的长度小于下 颌升支的长度。  The method for preparing a mandibular angle shaping assisting device according to claim 9, wherein the length of the horizontal portion of the outer side of the limiting piece is smaller than the length of the mandible body, and the length of the vertical portion is smaller than the length of the lower jaw. .
PCT/CN2005/000759 2005-04-22 2005-05-31 Auxiliary device for plastic operation of the mandibular angle WO2006111049A1 (en)

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