CN102988123B - The substitute prosthese that a kind of longitudinal direction of jaw face is fixing - Google Patents
The substitute prosthese that a kind of longitudinal direction of jaw face is fixing Download PDFInfo
- Publication number
- CN102988123B CN102988123B CN201210544455.0A CN201210544455A CN102988123B CN 102988123 B CN102988123 B CN 102988123B CN 201210544455 A CN201210544455 A CN 201210544455A CN 102988123 B CN102988123 B CN 102988123B
- Authority
- CN
- China
- Prior art keywords
- prosthese
- substitute
- nail
- fixing
- bone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 85
- 230000001054 cortical effect Effects 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 8
- 210000001847 jaw Anatomy 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 11
- 230000002980 postoperative effect Effects 0.000 abstract description 6
- 206010003694 Atrophy Diseases 0.000 abstract description 5
- 230000037444 atrophy Effects 0.000 abstract description 5
- 208000006735 Periostitis Diseases 0.000 abstract description 3
- 210000003460 periosteum Anatomy 0.000 abstract description 3
- 210000004872 soft tissue Anatomy 0.000 abstract description 3
- 210000004373 mandible Anatomy 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 241000973495 Odax pullus Species 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The structural design of the substitute prosthese that the longitudinal direction that the invention discloses a kind of jaw face is fixed, the section of prosthese is provided with the longitudinally fixing nail of substitute prosthese, nail is equipped with drill bushing and screw, and drill bushing and nail form matched in clearance, and drill bushing and screw form matched in clearance.The prosthese that this longitudinal direction is fixed changes traditional extension board technique for fixing, and the large area avoiding periosteum and soft tissue in fixation procedure is peeled off, and reduces the probability of prosthese fracture.What is more important, longitudinal fixing means does not change the main force way of mandible, and laterally fixing middle extension board can also be avoided to the stress force shelter reaction of its overlay area mandibular bone, effectively to prevent postoperative skeleton atrophy.
Description
Technical field
The invention belongs to substitute prosthese technical field, the structural design of the substitute prosthese that the longitudinal direction relating to a kind of jaw face is fixed.
Background technology
The shape individual variation of human lower jawbone is comparatively large, and for the bulk bone lacks that wound, tumor and congenital Cranial defect cause, basic method is by Operation artificial substituent.Due to the shape of traditional artificial implant and the appearance difference of green bone very large, have a strong impact on the aesthetic measure of patient facial region, the great pain on body and mind is brought to patient, therefore the design and manufaction of substitute prosthese more and more causes the attention of people, and the major issue that substitute prosthese is faced in actual applications is fixation problem.
The traditional fixing means of substitute prosthese mainly relies on the laminating of extension board and people's bone outer surface to realize the determination of mutual alignment, and by the screw on extension board, substitute prosthese and the mandibular bone broken ends of fractured bone is fixed together reliably.In order to make substitute prosthese and the accurate positioning of the mandibular bone broken ends of fractured bone, fixing reliable, usually extension board can be designed area is larger, to increase the contact area of location-plate and mandibular bone broken ends of fractured bone outer surface, increase the quantity of hold-down screw.But extension board connecting portion easily produces stress and concentrates, and causes junction to be ruptured; Extension board laterally fixedly changes the main force way of mandibular bone, makes its stressed character be shear stress by initial tension and compression transformation for stress; The mandibular bone region that the stress shielding effect of extension board makes it cover can not get due mechanical stimulation, causes the atrophy of coupling part mandibular bone.
Summary of the invention
The substitute prosthese that the problem that the present invention solves is to provide a kind of longitudinal direction of jaw face fixing, avoids the probability of substitute prosthese extension board junction fracture, effectively prevents the atrophy of postoperative mandibular bone coupling part.
The present invention is achieved through the following technical solutions:
The substitute prosthese that the longitudinal direction in jaw face is fixing, the section of substitute prosthese is provided with the longitudinally fixing nail of substitute prosthese, and nail is equipped with drill bushing and drill bit, and drill bushing and nail form matched in clearance, and drill bushing and drill bit form matched in clearance.
Described nail is provided with angle of eccentricity, and its biased direction should not deflect away from outside cortical bone or partially enter in mandibular bone pipe, thus ensures that fixing rear screw does not penetrate cortical bone.
The standing part section of described substitute prosthese and the osteotomy surface of the mandibular bone broken ends of fractured bone match, and cheek side connecting portion has the mandibular bone outline seamlessly transitted.
Described nail diameter is 1 ~ 3mm, and nail length is 3 ~ 20mm, nail diameter 0 ~ 0.2mm larger than drill bushing external diameter, and drill bushing internal diameter 0 ~ 0.2mm larger than bit diameter, bit diameter equals screw path.
Be provided with the auxiliary flange being connected and locating with mandibular bone broken ends of fractured bone contact site outside described substitute prosthese.
Described flange extension elongation be 1 ~ 10mm, the thickness of flange is 0.5 ~ 3mm.
The cross sectional shape of described substitute prosthese is solid section or U-type groove cross section.
The solid section of described substitute prosthese is provided with the positioning boss matched with mandibular bone pipe, and positioning boss is high is 3 ~ 10mm, and drafting angle is 5 ° ~ 30 °.
The thickness of described U-type groove substitute prosthese is 0.5 ~ 3mm.
Compared with prior art, the present invention has following useful technique effect:
The substitute prosthese that the longitudinal direction in jaw face provided by the invention is fixing, laterally fixedly changes into longitudinally fixing by extension board, avoid substitute prosthese extension board junction stress and concentrate and the probability that ruptures.
Further, the substitute prosthese that the longitudinal direction in jaw face provided by the invention is fixing, utilize nail and the guide function of drill bushing realization when mandibular bone longitudinal drilling that prosthese is arranged, ensure that screw hammers into cortical bone and do not deflect away from mandibular bone surface later or partially enter mandibular bone pulp cavity.
The substitute prosthese that the longitudinal direction in jaw face provided by the invention is fixing, adopts the method for mandibular bone tongue side surface location, avoids extension board and horizontal hold-down screw to the impact of postoperative mandibular bone cheek sidelight slippery, ensure that the attractive in appearance of postoperative patient face.
The substitute prosthese that the longitudinal direction in jaw face provided by the invention is fixing, substitute prosthese section is designed with flange, auxiliary positioning during for connecting mandibular bone and prosthese section.
The substitute prosthese that the longitudinal direction in jaw face provided by the invention is fixing, the large area avoiding periosteum and soft tissue in horizontal fixation procedure is peeled off, and do not change the main force way of coupling part mandibular bone, avoid extension board in horizontal fixing means and, to the stress shielding effect of the mandibular bone of its overlay area, effectively prevent the atrophy of postoperative mandibular bone.
Accompanying drawing explanation
Fig. 1-1 ~ 1-2 is the structural representation that substitute prosthese and the mandibular bone broken ends of fractured bone are longitudinally fixed;
Fig. 2-1 ~ 2-2 is that substitute prosthese tongue side locating flange and standing part reserve the position of nail and the structural representation of angle of eccentricity thereof;
Fig. 3 is drill bushing scheme of installation in substitute prosthese fixation procedure;
Fig. 4 is that in substitute prosthese fixation procedure, drill bushing and prosthese assemble partial sectional view.
Wherein, 1 is bone stump; 2 is substitute prosthese, and 3 is drill bit, and 4 is drill bushing.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, and the explanation of the invention is not limited.
See Fig. 1-1 ~ 1-2, the substitute prosthese that the longitudinal direction in jaw face is fixing, the section of substitute prosthese is provided with the longitudinally fixing nail of substitute prosthese, and nail is equipped with drill bushing and drill bit, drill bushing and nail form matched in clearance, and drill bushing and drill bit form matched in clearance.
So just can by nail reserved on prosthese section and outer surface, screw is penetrated mandibular bone section and hammer into cortical bone, the longitudinal direction completing prosthese and the mandibular bone broken ends of fractured bone is fixed.
Wherein Fig. 1-1 is entity structure prosthese, and Fig. 1-2 is U-type groove structure prosthese.Nail quantity reserved on substitute prosthese is more, and the angle of deflection inner side spongy bone is less, and it is more that titanium nail penetrates mandibular bone broken ends of fractured bone cortical bone, fixing more firm.But too much reserved nail can reduce the intensity of substitute prosthese connecting portion, and too small angle of eccentricity will increase the difficulty of doctor's drilling operation in clinical operation, even cannot hole.Therefore under the prerequisite ensureing fixing-stable, the quantity of reserved nail should be reduced as far as possible, increases angle of eccentricity.
Concrete, substitute prosthetic designs becomes cross sectional shape to be solid section or U-type groove cross section, the solid section of wherein substitute prosthese is also provided with the positioning boss (see Fig. 1-1) matched with mandibular bone pipe, the high 3 ~ 10mm of positioning boss, and drafting angle is 5 ° ~ 30 °; The thickness of U-type groove prosthese should between 0.5 ~ 3mm (see Fig. 1-2), and the section of substitute prosthese and the osteotomy surface of the mandibular bone broken ends of fractured bone match, and cheek side connecting portion has the mandibular bone outline seamlessly transitted.
The nail of reserved diameter 1 ~ 3mm on substitute prosthese outer contour surface, nail, by personalized designs, ensures that its direction is not deflected away from outside cortical bone or partially enters in mandibular bone pipe, ensures that the screw after fixing does not deflect away from cortical bone.Concrete, nail length is at 3 ~ 20mm, and nail is equipped with drill bushing and drill bit, drill bushing and nail form matched in clearance, nail diameter 0 ~ 0.2mm larger than drill bushing external diameter, and drill bushing and drill bit form matched in clearance, through 0 ~ 0.2mm larger than bit diameter in drill bushing, bit diameter equals screw path.
Further, substitute prosthese tongue side and mandibular bone broken ends of fractured bone contact site are designed with flange, and for auxiliary connection and location, the extension elongation of flange is at 1 ~ 10mm, and flange parcel mandibular bone tongue side surface, the thickness of tongue side flange is 0.5 ~ 3mm.
When substitute prosthese uses, substitute prosthese and the mandibular bone broken ends of fractured bone are drawn close, locate according to flange inner face and mandibular bone broken ends of fractured bone outer surface, utilize reserved nail and drill bushing to lay titanium nail, complete fixing of substitute prosthese and the mandibular bone broken ends of fractured bone.
See Fig. 2-1 ~ 2-2, wherein, Fig. 2-1 is entity structure prosthese, and Fig. 2-2 is U-type groove structure prosthese.Apply the structural design of the mathematical property of side data or Lateral Inferior Arc Curve of Mandible being carried out to substitute prosthese to Cranial defect or lopsided case, prosthese can be designed to entity structure or U-type groove structure, its cross sectional shape is the shape matched with the mandibular bone broken ends of fractured bone, nail is reserved at its fixed position, be designed with auxiliary connection and the flange of location in its tongue side, solid section prosthese also can on its transverse section Design Orientation boss.
Mandibular bone sagittal osteotomy is completed according to the osteotomy site preset in operation, then substitute prosthese sagittal sectional and mandibular bone broken ends of fractured bone osteotomy surface are fitted, by substitute prosthese tongue side flange inner surface laminating mandibular bone broken ends of fractured bone tongue side external surface, to complete the space orientation of substitute prosthese.
When using the substitute prosthese of solid section, the positioning boss on prosthese transverse section can also be utilized to embed mandibular bone pipe inside locate further, be 3 ~ 10mm for embedding the height of the positioning boss in mandibular bone pipe, drafting angle is 5 ° ~ 30 °, selects design parameter as the case may be.
After location completes, the drill bushing of design is put into the nail that prosthese is reserved, with drill bit in the punching of the mandibular bone broken ends of fractured bone, then taken off by drill bushing, be manually screwed into fixing screw, the longitudinal direction completing prosthese and stump skeleton is fixed.
Concrete, Fig. 3 is drill bushing scheme of installation in substitute prosthese fixation procedure, Fig. 4 is that in substitute prosthese fixation procedure, drill bushing and prosthese assemble partial sectional view, wherein drill bushing and nail form matched in clearance, nail diameter 0 ~ 0.2mm larger than drill bushing external diameter, drill bushing and drill bit form matched in clearance, and drill bushing internal diameter 0 ~ 0.2mm larger than bit diameter, bit diameter equals screw path.
The substitute prosthese that the longitudinal direction in the above-mentioned jaw face provided is fixing, the large area avoiding periosteum and soft tissue in horizontal fixation procedure is peeled off, and do not change the main force way of coupling part mandibular bone, avoid extension board in horizontal fixing means and, to the stress shielding effect of the mandibular bone of its overlay area, effectively prevent the atrophy of postoperative mandibular bone.
Claims (4)
1. the substitute prosthese that the longitudinal direction in a jaw face is fixing, it is characterized in that, the section of substitute prosthese is provided with the longitudinally fixing nail of substitute prosthese, and nail is equipped with drill bushing and drill bit, drill bushing and nail form matched in clearance, and drill bushing and drill bit form matched in clearance; Also comprise the screw matched with nail, drill bushing; Be provided with the auxiliary flange being connected and locating with mandibular bone broken ends of fractured bone contact site outside substitute prosthese;
The section of the standing part of substitute prosthese and the osteotomy surface of the mandibular bone broken ends of fractured bone match, and cheek side connecting portion has the mandibular bone outline seamlessly transitted;
The section of the standing part of described substitute prosthese and the osteotomy surface of the mandibular bone tongue side broken ends of fractured bone match;
Nail is provided with angle of eccentricity, and its biased direction does not deflect away from outside cortical bone or partially enters in mandibular bone pipe, thus ensures that the screw after fixing does not penetrate cortical bone;
Described nail diameter is 1 ~ 3mm, and nail length is 3 ~ 20mm, nail diameter 0 ~ 0.2mm larger than drill bushing external diameter, and drill bushing internal diameter 0 ~ 0.2mm larger than bit diameter, bit diameter equals the path of fixing screw.
2. the substitute prosthese that the longitudinal direction in jaw face as claimed in claim 1 is fixing, it is characterized in that, the protrusion height of described flange is 1 ~ 10mm, and the thickness of flange is 0.5 ~ 3mm.
3. the substitute prosthese that the longitudinal direction in jaw face as claimed in claim 1 is fixing, it is characterized in that, the cross sectional shape of substitute prosthese is solid section or U-type groove cross section.
4. the substitute prosthese that the longitudinal direction in jaw face as claimed in claim 3 is fixing, it is characterized in that, the solid section of substitute prosthese is provided with the sagittal sectional matched with the mandibular bone tongue side broken ends of fractured bone;
The thickness of U-type groove substitute prosthese is 0.5 ~ 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544455.0A CN102988123B (en) | 2012-12-14 | 2012-12-14 | The substitute prosthese that a kind of longitudinal direction of jaw face is fixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544455.0A CN102988123B (en) | 2012-12-14 | 2012-12-14 | The substitute prosthese that a kind of longitudinal direction of jaw face is fixing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102988123A CN102988123A (en) | 2013-03-27 |
| CN102988123B true CN102988123B (en) | 2015-08-05 |
Family
ID=47917558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210544455.0A Expired - Fee Related CN102988123B (en) | 2012-12-14 | 2012-12-14 | The substitute prosthese that a kind of longitudinal direction of jaw face is fixing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102988123B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109528355B (en) * | 2018-12-21 | 2023-09-12 | 天衍医疗器材有限公司 | mandibular prosthesis |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3720959A (en) * | 1970-08-26 | 1973-03-20 | G Hahn | Mandibular prosthetic apparatus |
| EP0747019A2 (en) * | 1995-06-07 | 1996-12-11 | United States Surgical Corporation | Modular surgical implant |
| CN102036618A (en) * | 2008-05-21 | 2011-04-27 | 内克西利斯股份公司 | Device and method for the amelioration of recesses |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1956998A1 (en) * | 2005-11-25 | 2008-08-20 | Biomet Microfixation, Inc. | Modular prosthesis for mandibular reconstruction |
| WO2009117208A1 (en) * | 2008-03-18 | 2009-09-24 | University Of Miami | Method for preparing recipient site and implanting allogeneic bone graft |
| WO2010023332A1 (en) * | 2008-06-08 | 2010-03-04 | Diego Martin Pien Dain | Device for applying bone filler biomaterial in maxillary surgery |
-
2012
- 2012-12-14 CN CN201210544455.0A patent/CN102988123B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3720959A (en) * | 1970-08-26 | 1973-03-20 | G Hahn | Mandibular prosthetic apparatus |
| EP0747019A2 (en) * | 1995-06-07 | 1996-12-11 | United States Surgical Corporation | Modular surgical implant |
| CN102036618A (en) * | 2008-05-21 | 2011-04-27 | 内克西利斯股份公司 | Device and method for the amelioration of recesses |
Non-Patent Citations (1)
| Title |
|---|
| 下颌骨缺损个体化修复体的应力分析与优化设计;龚振宇 等;《中国组织工程研究与临床康复》;20110924;第15卷(第39期);第7242-7246页，第1章 材料和方法，附图1-3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102988123A (en) | 2013-03-27 |
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Granted publication date: 20150805 |