CN104055555B - The special osteotome of Sagittal split ramus osteotomy - Google Patents
The special osteotome of Sagittal split ramus osteotomy Download PDFInfo
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- CN104055555B CN104055555B CN201410287439.7A CN201410287439A CN104055555B CN 104055555 B CN104055555 B CN 104055555B CN 201410287439 A CN201410287439 A CN 201410287439A CN 104055555 B CN104055555 B CN 104055555B
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- chisel
- connecting portion
- osteotome
- osteotomy
- sagittal split
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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
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1673—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the jaw
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- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
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- Heart & Thoracic Surgery (AREA)
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Abstract
The present invention provides Sagittal split ramus osteotomy special osteotome, relates to medical instruments field.The special osteotome of Sagittal split ramus osteotomy, including connecting portion and chisel, the upper surface of described chisel is connected with connecting portion, lower surface is provided with blade, the cross section of described chisel is rectangle, the chisel two sides corresponding with two long limits of described chisel cross section are respectively cancave cambered surface and convex globoidal, and the thickness of described chisel is gradually reduced to lower surface from upper surface.The special osteotome of Sagittal split ramus osteotomy of the present invention, it is possible to avoid as far as possible causing mandibular bone surprisingly fracture and damage the complication such as inferior alveolar nerve in art.
Description
Technical field
The present invention relates to medical instruments field, be specifically related to the special osteotome of Sagittal split ramus osteotomy.
Background technology
Adult bone dentomatillofacial detormity typically requires orthognathic surgery and orthodontic therapeutic alliance can be only achieved preferable therapeutic effect.Sagittal split ramus osteotomy is presently the most and the operation method of rescuing mandibular deformity is widely used, and has the advantages such as design is ingenious, easy and simple to handle, postoperative effect is stable.But; its chisel of common osteotome that operation uses at present is vertical configuration; when being operated after directly tapping entrance mandibular bone; tend to have and cause mandibular bone surprisingly to fracture and damage the possibility of inferior alveolar nerve, particularly mandibular bone dissect have exception or patient to occur when lacking enough surgical experiences the chance of above-mentioned complication is bigger.These complication above-mentioned will have a strong impact on the functional rehabilitation of surgical result and patient.It addition, the lever of common osteotome is unfavorable for firmly and holds, blade mostly is craspedodrome sword, tread is the shortest, these defects cause operation inconvenience when using in art.
Summary of the invention
It is an object of the invention to provide the special osteotome of Sagittal split ramus osteotomy, it is possible to avoid as far as possible art causing mandibular bone surprisingly fracture and damage the complication such as inferior alveolar nerve.
The purpose of the present invention adopts the following technical scheme that realization.
The special osteotome of Sagittal split ramus osteotomy, including connecting portion and chisel, the upper surface of described chisel is connected with connecting portion, lower surface is provided with blade, the cross section of described chisel is rectangle, being respectively cancave cambered surface and convex globoidal with the two sides of the two of described cross section chisels that long limit is corresponding, the thickness of described chisel is gradually reduced to lower surface from upper surface.
In the present invention, the tangent line of described cancave cambered surface and angle 0-15 ° of connecting portion central axis；The tangent line of described convex globoidal and angle 0-25 ° of connecting portion central axis.
In the present invention, described chisel thickness is 0.5-2.5 mm, and the width of described blade is 8-12 millimeter.The height of described chisel is 25-28 centimetre.Having the chisel of such size, be more suitable for the sclerotin anatomical structure of mandibular bone, when sagittal is rived, strength is controlled, reduces complication and occurs.
In the present invention, the blade of described chisel is blunt edges.
In the present invention, described osteotome also includes handle, sets hollow cavity in described handle, and described connecting portion inserts in described hollow cavity.
In the present invention, described handle is wooden cylindrical handle.
In the present invention, a diameter of 1.5-2.0 centimetre of described cylindrical handle, height is 9-11 centimetre.
In the present invention, described connecting portion is rectangular-shaped, and the height of described connecting portion is 9-11 centimetre, a length of 8-12 millimeter of described connecting portion, and the width of described connecting portion is 1.5-2.5 millimeter.
In this field, the thickness of chisel refers to the width of chisel cross section rectangle, and the width of blade is exactly the length of chisel cross section rectangle.
The chisel of the special osteotome of Sagittal split ramus osteotomy of the present invention, is respectively cancave cambered surface and convex globoidal with the two sides of the two of chisel cross section chisels that long limit is corresponding.During Sagittal split ramus osteotomy, by osteotome cancave cambered surface of the present invention towards cheek side, convex globoidal operates towards tongue side.After mandibular bone bone saw osteotomy of being expert at, after this chisel hand-mallet is progressively tapped by vertical osteotomy line and ramus of mandible osteotomy line intersection the most gently, chisel grip slightly toward lower jaw tongue side make blade will not vertically downward but the most downward along the inner side of lower jaw cortex hone lamella.After lower jaw lower edge cheek-tongue side hone lamella separates, grip osteotome wooden handle and impose rotary torsion, so that angle of mandible and liter branch cheek-tongue side cortex hone lamella are progressively rived.Meanwhile, this osteotome available and similar approach carry out pelvic radiograph equally at multiple positions of sagittal splitting of mandible osteotomy line.Both may insure that ramus of mandible can be smoothed out sagittal and rive, it is to avoid the generation of unexpected fracture, the lower alveolus nervus vasculairs bundle being positioned at mandibular bone spongiosa can have been protected again, it is to avoid neural blood vessel damages.
Accompanying drawing explanation
Fig. 1 is the front view of the special osteotome of Sagittal split ramus osteotomy, and Fig. 2 is the left view of the special osteotome of Sagittal split ramus osteotomy, wherein 1-handle, 2-connecting portion, 3-chisel, 4-convex globoidal, 5-cancave cambered surface, 6-blade.
Fig. 3,4 and 5 show the schematic diagram using the operation of Sagittal split ramus osteotomy of the present invention special osteotome, wherein 8-mandibular bone spongy bone pulp cavity, 9-lower jaw cortical bone, 10-mandible incisor, 11-osteotome of the present invention, 12-lower molar.
Detailed description of the invention
Embodiment 1 The structure of the special osteotome of Sagittal split ramus osteotomy
Illustrate in conjunction with Fig. 1,2 pairs of osteotome of the present invention.
The special osteotome of Sagittal split ramus osteotomy, including connecting portion 2 and chisel 3, the upper surface of chisel 3 is connected with connecting portion 2, lower surface is provided with blade 6, the cross section of chisel 3 is rectangle, chisel 3 two sides corresponding with two long limits of chisel 3 cross section are respectively cancave cambered surface 5 and convex globoidal 4, and the thickness of chisel 3 is gradually reduced to lower surface from upper surface.In the present invention, the thickness of chisel 3 refers to that the width of chisel 3 cross section rectangle, the width of blade 6 are exactly the length of chisel 3 cross section rectangle.
The angle (acute angle of formation) of the tangent line of cancave cambered surface 5 and connecting portion 2 central axis preferably 0-15 °.The angle (acute angle of formation) of the tangent line of convex globoidal 4 and connecting portion 2 central axis preferably 0-25 °.The cancave cambered surface so designed and convex globoidal, in operation process, by osteotome cancave cambered surface of the present invention towards cheek side, convex globoidal is towards tongue side, chisel is made to be close to the inner side of lower jaw cheek side cortex hone lamella, can not only progressively efficiently separate cheek-tongue side cortex hone lamella, rive ramus of mandible and corner, and it can be avoided that damage inferior alveolar nerve vascular bundle.
Chisel 3 thickness is 0.5-2.5 mm, and the width of blade 6 is 8-12 millimeter, preferably 8 millimeters and 12 millimeters.The height of chisel 3 is 25-28 centimetre.There is the chisel of such size, be more suitable for mandible structure and time sagittal is rived strength controlled, reduce complication and occur.
The blade 6 of chisel 3 is blunt edges, it is to avoid directly damage the sharp property of inferior alveolar nerve vascular bundle in art.
Osteotome also includes handle 1, sets hollow cavity in described handle 1, and connecting portion 2 inserts in described hollow cavity.
Handle 1 is preferably wooden cylindrical handle.
A diameter of 1.5-2.0 centimetre of cylindrical handle 1, height is 9-11 centimetre, is conducive to holding and force.
Connecting portion 2 is rectangular-shaped, and the height of connecting portion 2 is 9-11 centimetre, a length of 8-12 millimeter of connecting portion 2, and the width of connecting portion 2 is 1.5-2.5 millimeter.
Chisel 3 and connecting portion 2 are one piece casting, and material is rustless steel.
The using method of the special osteotome of embodiment 2 Sagittal split ramus osteotomy
Common osteotome is used to carry out Sagittal split ramus osteotomy: to carry out the incision of lower jaw mucosa according to the design of conventional Sagittal split ramus osteotomy, separate and expose anterior border of ramus and lower jaw the one or two cheek side of grinding one's teeth in sleep and stick periosteum attachment, separation of moving under water under ramus of mandible medial periosteum exposes inside ramus of mandible and mandibular lingula, and Horizontal osteotomy, the vertical osteotomy of anterior border of ramus and lower jaw cheek side cortex osteotomy inside mandibular lingula top row ramus of mandible are sawed in application reflex.Apply common 4mm(blade width) whether thoroughly and put in place (arriving mandibular bone spongiosa) three osteotomy lines are connected and determine the most shallow to knock in osteotomy line perception osteotomy by osteotome.Using two 8mm(blade widths) osteotome alternately knocks in the vertical osteotomy line of anterior border of ramus, and then apply strength and ramus of mandible is vertically rived form the nearly telecentricity bone section being separated from each other.The when that inferior alveolar nerve being easiest to damage the most just, it is therefore necessary in addition careful.But, not enough for surgical experience or time ramus of mandible anatomic form changes (when being close to hone lamella outside mandibular bone such as inferior alveolar nerve pipe), have the common osteotome of craspedodrome sword easily cause ramus of mandible surprisingly fracture, damage inferior alveolar nerve vascular bundle simultaneously.
Use the special osteotome of Sagittal split ramus osteotomy of the present invention, for when surgical experience is not enough or ramus of mandible anatomic form changes (when being close to hone lamella outside mandibular bone such as inferior alveolar nerve pipe), pelvic radiograph can be conducive to, it is to avoid ramus of mandible fracture, interior alveolar nerve injury.Operation method is as follows: carry out the incision of lower jaw mucosa according to the design of conventional Sagittal split ramus osteotomy, separate and expose anterior border of ramus and lower jaw the one or two cheek side of grinding one's teeth in sleep and stick periosteum attachment, separation of moving under water under ramus of mandible medial periosteum exposes inside ramus of mandible and mandibular lingula, and application reflex is sawed Horizontal osteotomy, the vertical osteotomy of anterior border of ramus and lower jaw inside mandibular lingula top row ramus of mandible and is equivalent to lower jaw the one or two and grinds one's teeth in sleep the cheek side cortex osteotomy of intersection.By osteotome cancave cambered surface of the present invention towards mandibular bone cheek side, convex globoidal is towards mandibular bone tongue side; being ground one's teeth in sleep along lower jaw the one or two by blade, osteotomy line osteotomy vertical with ramus of mandible line intersection in cheek side is vertical to be knocked in; after entering mandibular bone spongy bone pulp cavity (Fig. 3); adjusting osteotome direction makes blade must be close to the inner side of lower jaw cortex hone lamella progressively downwards (Fig. 4); under protection on the premise of jaw lower edge and cheek side Mucoperiosteal flap, application hammer progressively knocks in osteotome until lower jaw lower edge hone lamella cheek-tongue side separates (Fig. 5).Grip osteotome handle and impose rotary torsion, so that hone lamella is rived outside lower jaw.Pelvic radiograph can be carried out equally at multiple positions of sagittal splitting of mandible osteotomy line.In operation process, osteotome cancave cambered surface of the present invention towards cheek side, convex globoidal towards tongue side, make chisel be close to the inner side of lower jaw cheek side cortex hone lamella progressively downward, can not only progressively efficiently separate cheek-tongue side cortex hone lamella, rive ramus of mandible and corner, and it can be avoided that damage inferior alveolar nerve vascular bundle.
Claims (8)
1. the special osteotome of Sagittal split ramus osteotomy, including connecting portion and chisel, the upper end of described chisel
Face is connected with connecting portion, lower surface is provided with blade, it is characterised in that the cross section of described chisel is rectangle, with institute
The two sides stating the corresponding chisel in two long limits of cross section are respectively cancave cambered surface and convex globoidal, described chisel
Thickness is gradually reduced to lower surface from upper surface；The tangent line of described cancave cambered surface with the angle of connecting portion central axis is
0-15°；The tangent line of described convex globoidal is 0-25 ° with the angle of connecting portion central axis.
The special osteotome of Sagittal split ramus osteotomy the most according to claim 1, it is characterised in that described
The thickness of chisel is 0.5-2.5mm, and the width of described blade is 8-12 millimeter.
The special osteotome of Sagittal split ramus osteotomy the most according to claim 2, it is characterised in that described
The height of chisel is 25-28 centimetre.
The special osteotome of Sagittal split ramus osteotomy the most according to claim 3, it is characterised in that described
The blade of chisel is blunt edges.
The special osteotome of Sagittal split ramus osteotomy the most according to claim 4, it is characterised in that described
Osteotome also includes handle, sets hollow cavity in described handle, and described connecting portion inserts in described hollow cavity.
The special osteotome of Sagittal split ramus osteotomy the most according to claim 5, it is characterised in that described
Handle is wooden cylindrical handle.
The special osteotome of Sagittal split ramus osteotomy the most according to claim 6, it is characterised in that described
A diameter of 1.5-2.0 centimetre of cylindrical handle, height is 9-11 centimetre.
The special osteotome of Sagittal split ramus osteotomy the most according to claim 7, it is characterised in that described
Connecting portion is rectangular-shaped, and the height of described connecting portion is 9-11 centimetre, a length of 8-12 of described connecting portion
Millimeter, the width of described connecting portion is 1.5-2.5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410287439.7A CN104055555B (en) | 2014-06-25 | 2014-06-25 | The special osteotome of Sagittal split ramus osteotomy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410287439.7A CN104055555B (en) | 2014-06-25 | 2014-06-25 | The special osteotome of Sagittal split ramus osteotomy |
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| Publication Number | Publication Date |
|---|---|
| CN104055555A CN104055555A (en) | 2014-09-24 |
| CN104055555B true CN104055555B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410287439.7A Expired - Fee Related CN104055555B (en) | 2014-06-25 | 2014-06-25 | The special osteotome of Sagittal split ramus osteotomy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114711888B (en) * | 2022-04-26 | 2024-03-08 | 吉林大学 | Special osteotome for accurate disconnection of winged maxillary connection in orthognathic surgery and use method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004086998A1 (en) * | 2003-04-02 | 2004-10-14 | Osvaldo Maximiliano Massi | Ultrasonic chisel |
| WO2004112624A1 (en) * | 2003-06-24 | 2004-12-29 | Nihon University | Orthopedic instrument |
| CN201469437U (en) * | 2009-08-13 | 2010-05-19 | 杨志峰 | Improved bone chisel |
| DE202013004295U1 (en) * | 2013-05-08 | 2013-06-13 | Innovations-Medical Gmbh | One hand tool for medical purposes |
| CN203001045U (en) * | 2012-11-15 | 2013-06-19 | 中国人民解放军北京军区总医院 | Mandibular angle osteotome |
-
2014
- 2014-06-25 CN CN201410287439.7A patent/CN104055555B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004086998A1 (en) * | 2003-04-02 | 2004-10-14 | Osvaldo Maximiliano Massi | Ultrasonic chisel |
| WO2004112624A1 (en) * | 2003-06-24 | 2004-12-29 | Nihon University | Orthopedic instrument |
| CN201469437U (en) * | 2009-08-13 | 2010-05-19 | 杨志峰 | Improved bone chisel |
| CN203001045U (en) * | 2012-11-15 | 2013-06-19 | 中国人民解放军北京军区总医院 | Mandibular angle osteotome |
| DE202013004295U1 (en) * | 2013-05-08 | 2013-06-13 | Innovations-Medical Gmbh | One hand tool for medical purposes |
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| CN104055555A (en) | 2014-09-24 |
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