WO2011108777A1 - 교합기. - Google Patents
교합기. Download PDFInfo
- Publication number
- WO2011108777A1 WO2011108777A1 PCT/KR2010/002401 KR2010002401W WO2011108777A1 WO 2011108777 A1 WO2011108777 A1 WO 2011108777A1 KR 2010002401 W KR2010002401 W KR 2010002401W WO 2011108777 A1 WO2011108777 A1 WO 2011108777A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- articulator
- maxillary
- shaft
- mandibular
- model
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C11/00—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings
- A61C11/02—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings characterised by the arrangement, location or type of the hinge means ; Articulators with pivots
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C11/00—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings
- A61C11/06—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with incisal guide
Definitions
- the present invention relates to an articulator for attaching the upper and lower mandibles to check the arrangement of teeth.
- the upper and lower mandibles have a simple structure of movement of the upper and lower jaw while minimizing the occlusal error and the occlusal surface of the upper and lower jaw. To make sure it is mounted correctly.
- the articulator is a device used to measure the occlusal state of teeth and gums and to manufacture and diagnose dentures, crown restorations, and prostheses.
- the articulator reproduces the mechanical position of the jaw and teeth relative to the skull or mechanical movement of the mandible. .
- the maxillary mandibular movement in the human body is the structure in which the maxilla is moved without moving the mandible, and the structure of most articulators mimics the form of the maxillary mandibular movement. It is made based on the standard.
- the folding structure of the articulator is divided into an arcon condylar articulator with the condyle inducing part at the maxillary side, and a nonarcon condylar articulator with the condylar part in the mandible according to the position of the condyle element.
- the frequency of use is high because it is a structure of an unregulated articulator that emphasizes reproduction of mandibular motion.
- the problem of the articulator is to reproduce the mandibular movement of the human body as shown in Figs. 16 and 17 in order to position the upper and lower teeth model in the condition that the tooth model is closest to the structure of the upper and lower jaw of the human body.
- the position of the reference axis is manufactured according to the condyle, and in human anatomy, the condyle is composed of a spherical shape, so there are many differences from the principle of operation of the shaft.
- muscle (low muscle) movement is made, but if only the position of the condyle as a reference axis as described above, because the movement of the muscle is excluded, the error is inevitably generated when measuring the upper and lower jaw movements.
- such a conventional articulator is to fix the upper and lower mandible model while confirming the position of the occlusal plane by using an auxiliary means such as a rubber band or a laser in order to position the upper and lower mandibular models on the correct occlusal plane.
- an auxiliary means such as a rubber band or a laser in order to position the upper and lower mandibular models on the correct occlusal plane.
- the present invention has been made in order to solve the above problems, by setting the position to the reference axis that is the center of the physiological occlusion during upper and lower movement, while minimizing the error range of the articulator, the maxillary and mandibular fixation of the articulator
- the structure is simple and easy to manufacture, and its purpose is to precisely place the maxillary and mandibular models on the occlusal plane precisely.
- the present invention forms a reference axis on the extension line of the occlusal plane to which the maxillary and mandibular folds are folded so that the tangent of the rotational movement operates perpendicular to the occlusal plane, and the rotation axis of the maxillary brace is lower It is intended to have a structure of a fixed state of the nanakon type hanger.
- the jaw is fixed to the jaw for adjusting the horizontal state of the mandible model in the mandrel fixed jaw of the mandrel fixed to the upper and lower models to be accurately positioned on the occlusal plane.
- the present invention enables more precise occlusion by minimizing the error range of the articulator on the basis of the point that is the center of physiological occlusion of the teeth, and by simplifying the structure of the articulator, the manufacturing cost is increased. It can be reduced.
- the error range of the occlusion can be further reduced.
- FIG. 1 is a perspective view showing an embodiment of the present invention
- Figure 2 is a side view showing the folding structure of the articulator of the present invention
- Figure 3 is a schematic diagram showing the physiological bite state of the articulator of the present invention
- Figure 4 is a perspective view showing the removable structure of the mandible and the maxillary fixture of the present invention
- Figure 5 is a side cross-sectional view showing a removable structure of the mandible and the maxillary fixture of the present invention.
- Figure 6 is a side view showing another embodiment of the hanger of the present invention.
- Figure 7 is a cross-sectional view showing a torsional state of the rotating shaft and the hanger of the present invention
- Figure 8 is a perspective view of the jig is coupled to the mandibles of the present invention
- FIG. 9 is a perspective view of a state in which the mandible and the jig is coupled
- 10 and 11 are schematic views showing the use situation of the jig of FIG.
- FIG. 12 is a perspective view showing another embodiment of the jig of the present invention.
- FIG. 13 to 15 are schematic diagrams showing the mounting process of the upper and lower jaw model
- Figure 16 is a side view showing the folding structure of a conventional articulator
- 17 is a schematic diagram showing a reference axis position of a conventional articulator
- the present invention is divided into the lower jaw fixing 10 for mounting the lower jaw model 100 and the upper jaw fixing 20 for mounting the maxillary model 200, the hanger 11 to the lower jaw fixing 10 and the upper jaw fixing 20, respectively And a rotating shaft 21 is formed and axially coupled, and the columns 12 and 22 formed at the rear of the lower jaw 10 and the upper jaw 20 have the same vertical height so that the rotating shaft 21 has an occlusal plane.
- Is located on the extension line ( ⁇ ) of the mandibular fixture 10 and the maxillary fixture 20 is operated to be symmetrical up and down around the rotation axis 21 and the maxillary model 200 and the mandibular model 100 is When folded up and down, the tangent ( ⁇ ) of the rotary motion is to be operated perpendicular to the occlusal plane.
- the present invention is made up of the lower jaw fixed base 10 and the upper jaw fixing 20 to be folded up and down by the rotation shaft 21 of the upper jaw fixing 20, the upper jaw fixing ( 20) by setting the occlusal plane ( ⁇ ) by adjusting the horizontal degree, and mounting the mandibular model 100 and the maxillary model 200 on the set occlusal plane ( ⁇ ) to be able to check the arrangement relationship of the teeth to be.
- the mandible model 100 and the maxillary model 200 is to be mounted on the mandible stationary 10 and the maxillary stationary 20, respectively, each of the upper and lower jaw model (100,200) is to be fixed with plaster.
- each of the hanger 11 and the rotating shaft 21 is a lower jaw fixed
- Columns 12 and 22 formed behind the 10 and the maxillary fixture 20 have the same vertical height, so that the engagement position of the pivot shaft 21 is at the central height of the mandibular fixture 10 and the maxillary fixture 20. Will be able to be located.
- the pivot shaft 11 is positioned on the extension line of the occlusal plane ⁇ so that the mandibular fixation stand 10 and the maxillary fixation stand 20 are symmetrically moved up and down, and as shown in FIG.
- the tangent ⁇ of the rotational movement of the model 100 and the mandibular model 200 is perpendicular to the occlusal plane ⁇ and is folded up and down on the basis of the point P, which is the center of physiological occlusion of the tooth. It is to be built.
- the maxillary model 100 and the mandibular model 200 are folded up and down about the reference point P in the rear, so that the maxillary and mandibular movement structures are operated vertically close to the physiological tooth movement. Accordingly, by minimizing the error range of the articulator, more precise occlusion is possible.
- the lower jaw 10 is the back of the c-shaped on the top of the column 12
- An indentation groove 11a is opened
- the upper jaw fixture 20 has a shaft 23 formed at a lower end of the column 22 formed at the rear thereof, and the rotation shaft 21 protrudes to both sides thereof so that the rotation shaft 21 is formed.
- Is axially coupled to the indentation groove (11a) of the lower jaw fixing (10) is to allow the upper jaw fixing 20 to be folded up and down.
- the lower jaw (10) is a suspension 13 for connecting the top of the left and right columns 12 is formed so that the support means 14 is formed on the top of the suspension 13, the upper jaw fixed 20 It is to be prevented from being separated in the coupled state, the support means 14 is made of a structure that is elastically acting forward and backward to be able to detach the maxillary fixture 20 in one touch.
- a protruding wall 15 is formed on the upper surface of the suspension stand 13, and a push rod 16 is inserted into the through hole 15a formed in the protruding wall 15, so that the head 16a of the push rod 16 is provided.
- the push rod 16 is fixed to the state in which the upper jaw fixture 20 is elastically supported while moving elastically forward and backward.
- the push rod 16 is pushed to the rear while the maxillary fixture 20 is rotated.
- the coaxial 21 is to be separated from the hanger 11, thereby to be able to pull out the maxillary fixture 20 to the upper side.
- the shaft 23 is to form a hook protrusion 24 is formed to extend rearward to limit the inclination of the maxillary fixture 20 while the upper surface of the hook protrusion 24 is caught on the lower surface of the suspension (13).
- the bolt 25 is tightened by forming the screw hole 24a in the hook protrusion 24, the suspension stand 13 and the hook protrusion 24 are spaced apart according to the tightening state of the bolt 25. By adjusting the space it will be possible to set the limit angle of the maxillary fixture 20 finely.
- the articulator goes through the process of checking the occlusal state of the teeth by inserting the occlusal paper between the models to check the occlusal state of the model (100,200) by twisting the lower model (100) and the upper model (200) left and right.
- the shape of the locking stand 11 is formed in the shape of a c-shape so that the rear side of the pivot shaft 21 can be removed as shown in FIG. 7, and the mandible fixing stand 10 is pressed forward by the support means 14. ) And the maxillary fixture 20 will be able to twist left and right.
- the hanger 11 is formed so that the inner groove 11a is inclined in the outward direction so that the pivot shaft 21 is not caught by the outer jaw of the inner groove 11a during the left and right gaps of the upper jaw fixing stand 20. It is to be able to twist left and right, wherein the indentation groove (11a) has a slanted angle of -2 ° in the form struck backward as shown in Figure 6 physiological occlusion of the teeth at the left and right gap of the maxillary fixture 20 It is moved closer to, so that the occlusal measurement is more precise.
- the reason for setting the inclination angle to -2 ° is the anatomical point of human body, the point (P) and the point (P) which is the center of physiological occlusion based on the imaginary line connecting the incidence point (P) and the incisal point
- the angle of the line connecting the upper end of the anterior tooth is made to be -2 °.
- the upper surface of the indentation groove 11a has an inclination angle of -2 °, the left and right twists are closer to the physiological occlusion. Will be done.
- the lower model 100 is positioned on the upper side of the lower jaw 10, and then mounted using plaster, and then the upper model 200 is positioned below the upper jaw 20
- this detachable structure of the jig 30 is preferably made of the same structure as the mounting structure of the upper jaw fixing 20 described above. .
- the jig 30 has a shaft 33 formed at a lower end of the column 32 formed at the rear thereof, and the rotation shaft 31 protrudes from both sides thereof, so that the rotation shaft 31 is an indentation groove of the lower fixing rod 10. It is axially coupled to (11a) is to be able to fold the jig 30 up and down, even at this time, the jig 30 is rotated by the support means formed on the lower jaw 10 (10) ) Is pressed forward in the state that is coupled to be able to maintain the axial coupling state.
- the mandible model 100 can be held in close contact with the lower end of the jig (30).
- the lower surface of the jig 30 itself becomes the occlusal plane ⁇ , and thus the lower model 100 closely adheres to the bottom of the jig 30 without the need for a separate means such as eye contact or rubber band or laser.
- the lower model 100 can be positioned at the correct position of the occlusal plane ⁇ .
- the jig (30) forms a rectangular slot hole (36), and when the posterior position pin 37 and the adjusting knob (38) is mounted in the slot hole (36) while tightening or releasing the adjusting knob (38). Since the position of the posterior position pin 37 can be moved forward and backward, it is possible to fix the mounting state of the mandible model 100.
- the adjustment knob 38 is formed in two stages, the upper and lower as shown in Figure 12, the upper handle is to raise and lower the posterior position pin 37 to adjust the upper and lower height while the lower handle The posterior position pin 37 is to be able to move to a position that fits the mandible model 100 by adjusting the front and rear.
- the posterior position pin 38 can be finely adjusted.
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Prosthetics (AREA)
Abstract
Description
Claims (8)
- 하악모델(100)을 마운팅하는 하악고정대(10)와 상악모델(200)을 마운팅하는 상악고정대(20)로 분할되어져 하악고정대(10)와 상악고정대(20)에 각각 걸림대(11)와 회동축(21)이 형성되어 축결합되고, 상기 하악고정대(10)와 상악고정대(20)의 후방에 형성된 컬럼(12,22)이 동일한 수직높이를 갖도록 되어 회동축(21)이 교합평면(α)의 연장선상에 위치되어 하악고정대(10)와 상악고정대(20)가 회동축(21)을 중심으로 상,하로 대칭되어지게 작동하며 상기 상악모델(200)과 하악모델(100)이 상하로 절첩되어질 경우 회전운동의 접선(β)이 교합평면에 수직으로 작동되어짐을 특징으로 하는 교합기.
- 제 1항에 있어서, 상기 걸림대(11)는 후방으로 개구되어진 ㄷ자 형상의 내입홈(11a)이 형성되고, 상기 회동축(21)은 컬럼(22)의 하단에 형성된 샤프트(23)의 양측으로 돌출되어지게 형성되어 상악고정대(20)가 하악고정대(10)의 후방으로 축결합되어지며, 상기 상악고정대(10)의 좌,우측의 컬럼(12) 상단을 연결하는 현수대(13)에 탄성작동하는 지지수단(14)이 형성되어 샤프트(23)의 후방을 가압하면서 하악고정대(10)와 상악고정대(20)의 축결합상태를 고정토록 함을 특징으로 하는 교합기.
- 제 2항에 있어서, 상기 지지수단(14)은 현수대(13)의 상면에 돌출벽(15)이 상측으로 돌출형성되어 밀대(16)가 돌출벽(15)의 관통홀(15a)에 삽입되어지게 결합되어지고, 상기 밀대(16)의 헤드(16a)와 돌출벽(15)의 사이에는 압축스프링(17)이 장착되어 밀대(16)를 전방으로 가압토록 되면서 하악고정대(10)와 상악고정대(20)의 탈착이 가능토록 됨을 특징으로 하는 교합기.
- 제 2항에 있어서, 상기 걸림대(11)는 내입홈(11a)의 기울기가 후방으로 -2˚쳐진 형태로 경사각이 형성되어 상악고정대(20)의 좌,우비틈시 치아의 생리적교합에 더욱 근사치로 움직임 되어져 교합측정이 더욱 정밀하게 이루어지도록 됨을 특징으로 하는 교합기.
- 제 1항에 있어서, 상기 하악고정대(10)는 걸림대(11)에 결합고정되어 하악모델(100)의 수평상태를 조절하기 위한 별도의 지그(30)가 탈착가능토록 되고, 상기 걸림대(11)는 후방으로 개구되어진 ㄷ자 형상의 내입홈(11a)이 형성되어 지그(30)의 회동축(31)이 걸림대(11)의 후방으로 축결합되어지며 하악고정대(10)에 지그(30)가 원터치로 탈착되는 구조로 이루어짐을 특징으로 하는 교합기.
- 제 5항에 있어서, 상기 지그(30)는 장방형의 슬롯홀(36)이 형성되고 그 슬롯홀에 구치포지션핀(37)이 장착되어 조절손잡이(38)의 조작에 의하여 구치포지션핀(37)의 위치조작이 가능토록 되며 구치포지션핀(37)을 조임하여 구치의 상면을 가압하여 하부모델을 고정시킬 수 있도록 됨을 특징으로 하는 교합기.
- 제 6항에 있어서, 상기 조절손잡이(38)는 2단으로 형성되어 구치포지션핀(27)을 전,후방으로 이송하면서 동시에 상,하로 승하강시킬 수 있도록 함으로써 구치포지션핀(38)의 위치를 설정할 수 있도록 됨을 특징으로 하는 교합기.
- 제 5항에 있어서, 상기 회동축(31)은 컬럼(32)의 하단에 형성된 샤프트(33)의 좌,우 양측으로 돌출되어지도록 형성되고, 상기 샤프트(33)는 후방으로 연장형성되어진 후크돌기(34)가 형성되어 현수대(13)의 하단에 지지토록 되고, 상기 후크돌기(34)는 나사홀(34a)이 형성되어 볼트(35) 조임으로 후크돌기(34)의 상하높이를 설정함으로써 지그(30)의 각도조절이 가능토록 됨을 특징으로 하는 교합기.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/582,988 US20120329004A1 (en) | 2010-03-05 | 2010-04-16 | Articulator |
JP2012556953A JP5688620B2 (ja) | 2010-03-05 | 2010-04-16 | 咬合器 |
CA2792120A CA2792120A1 (en) | 2010-03-05 | 2010-04-16 | Articulator |
BR112012022411A BR112012022411A2 (pt) | 2010-03-05 | 2010-04-16 | articulador |
AU2010347320A AU2010347320A1 (en) | 2010-03-05 | 2010-04-16 | Articulator |
EP10847075.8A EP2543337B1 (en) | 2010-03-05 | 2010-04-16 | Articulator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100019933A KR100976044B1 (ko) | 2010-03-05 | 2010-03-05 | 교합기 |
KR10-2010-0019933 | 2010-03-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011108777A1 true WO2011108777A1 (ko) | 2011-09-09 |
Family
ID=42759652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2010/002401 WO2011108777A1 (ko) | 2010-03-05 | 2010-04-16 | 교합기. |
Country Status (8)
Country | Link |
---|---|
US (1) | US20120329004A1 (ko) |
EP (1) | EP2543337B1 (ko) |
JP (1) | JP5688620B2 (ko) |
KR (1) | KR100976044B1 (ko) |
AU (1) | AU2010347320A1 (ko) |
BR (2) | BR112012022294A2 (ko) |
CA (1) | CA2792120A1 (ko) |
WO (1) | WO2011108777A1 (ko) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6047740B2 (ja) * | 2011-02-14 | 2016-12-21 | 株式会社ニッシン | 咬合器 |
CN105979909B (zh) * | 2014-02-25 | 2017-07-28 | 株式会社Gc | 无牙颌患者用咬合记录器 |
KR101472809B1 (ko) * | 2014-10-06 | 2014-12-15 | 이동우 | 교합기 |
KR101472808B1 (ko) | 2014-11-03 | 2014-12-15 | 이동우 | 교합기 |
KR101686844B1 (ko) | 2015-09-24 | 2016-12-15 | 이동우 | 치아배열에 용이한 상악 모델 장착용 기준부재가 구비된 교합기 |
KR101926041B1 (ko) | 2017-10-26 | 2018-12-06 | 주현철 | 치과 기공용 교합기 |
KR102244666B1 (ko) * | 2020-11-18 | 2021-04-23 | 김의형 | 교합기 |
CN113567227B (zh) * | 2021-09-26 | 2022-02-08 | 江苏立晟德新材料有限公司 | 一种侧边咬合式电线电缆样品切断应力测试夹 |
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US4496320A (en) * | 1983-08-22 | 1985-01-29 | Rab Tec Products Corp. | Connection of tray to dental articulator |
US6450809B1 (en) * | 2001-04-18 | 2002-09-17 | Corey B. Iverson | Vertex dental model articulator |
KR20080076600A (ko) * | 2007-02-16 | 2008-08-20 | 김응오 | 치아모형 교합기 |
KR100865591B1 (ko) * | 2008-04-07 | 2008-10-28 | 임무철 | 치아모형 교합기 |
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US4045873A (en) * | 1976-06-28 | 1977-09-06 | Burnett Walter L | Dental articulator |
US4263715A (en) * | 1977-06-03 | 1981-04-28 | Rab Tec Products Corporation | Method and apparatus for mounting dental models on articulators |
JPH0616797B2 (ja) * | 1989-12-20 | 1994-03-09 | 佳朗 藤井 | 咬合器 |
US5482460A (en) * | 1993-08-26 | 1996-01-09 | American Bictech, Inc. | Dental model articulator |
US5641285A (en) * | 1995-04-12 | 1997-06-24 | Trovato; Joseph P. | Maxillary model positioning method and apparatus |
JP3558190B2 (ja) * | 1996-06-28 | 2004-08-25 | デンツプライ三金株式会社 | 義歯製作器具 |
JP3555829B2 (ja) * | 1997-11-07 | 2004-08-18 | 有限会社エー.ジー.オー | 咬合器 |
KR20050021430A (ko) * | 2002-07-01 | 2005-03-07 | 정윤오 | 치과용 모형화 및 교합기 시스템 및 방법 |
US20040146829A1 (en) * | 2003-01-29 | 2004-07-29 | Lopez William Shawn | Systems and methods for replicating positions of a mandible |
US20050089815A1 (en) * | 2003-10-24 | 2005-04-28 | Wan Ki Lee | Dental device for modeling system with articulator, adjustable articulator stand, classified label and protective cover |
KR100944812B1 (ko) * | 2008-02-04 | 2010-02-26 | 이무형 | 치 모형 결합모듈이 구비된 교합기 |
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2010
- 2010-03-05 KR KR1020100019933A patent/KR100976044B1/ko active IP Right Grant
- 2010-04-16 CA CA2792120A patent/CA2792120A1/en not_active Abandoned
- 2010-04-16 US US13/582,988 patent/US20120329004A1/en not_active Abandoned
- 2010-04-16 EP EP10847075.8A patent/EP2543337B1/en not_active Not-in-force
- 2010-04-16 BR BR112012022294A patent/BR112012022294A2/pt not_active IP Right Cessation
- 2010-04-16 WO PCT/KR2010/002401 patent/WO2011108777A1/ko active Application Filing
- 2010-04-16 AU AU2010347320A patent/AU2010347320A1/en not_active Abandoned
- 2010-04-16 BR BR112012022411A patent/BR112012022411A2/pt not_active IP Right Cessation
- 2010-04-16 JP JP2012556953A patent/JP5688620B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4496320A (en) * | 1983-08-22 | 1985-01-29 | Rab Tec Products Corp. | Connection of tray to dental articulator |
US6450809B1 (en) * | 2001-04-18 | 2002-09-17 | Corey B. Iverson | Vertex dental model articulator |
KR20080076600A (ko) * | 2007-02-16 | 2008-08-20 | 김응오 | 치아모형 교합기 |
KR100865591B1 (ko) * | 2008-04-07 | 2008-10-28 | 임무철 | 치아모형 교합기 |
Non-Patent Citations (1)
Title |
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See also references of EP2543337A4 * |
Also Published As
Publication number | Publication date |
---|---|
KR100976044B1 (ko) | 2010-08-18 |
US20120329004A1 (en) | 2012-12-27 |
BR112012022411A2 (pt) | 2016-07-05 |
EP2543337A4 (en) | 2014-01-29 |
BR112012022294A2 (pt) | 2019-09-24 |
EP2543337B1 (en) | 2015-02-25 |
CA2792120A1 (en) | 2011-09-09 |
JP2013521097A (ja) | 2013-06-10 |
EP2543337A1 (en) | 2013-01-09 |
JP5688620B2 (ja) | 2015-03-25 |
AU2010347320A1 (en) | 2012-09-27 |
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