WO2011162512A2 - 비정질합금을 이용한 임플란트의 제조장치 및 제조방법 - Google Patents
비정질합금을 이용한 임플란트의 제조장치 및 제조방법 Download PDFInfo
- Publication number
- WO2011162512A2 WO2011162512A2 PCT/KR2011/004478 KR2011004478W WO2011162512A2 WO 2011162512 A2 WO2011162512 A2 WO 2011162512A2 KR 2011004478 W KR2011004478 W KR 2011004478W WO 2011162512 A2 WO2011162512 A2 WO 2011162512A2
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- WIPO (PCT)
- Prior art keywords
- preform
- amorphous alloy
- outer mold
- implant
- thread
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D21/00—Combined processes according to methods covered by groups B21D1/00 - B21D19/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/20—Methods or devices for soldering, casting, moulding or melting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/24—Making other particular articles nuts or like thread-engaging members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
Definitions
- the present invention relates to an apparatus and method for manufacturing an implant using an amorphous alloy, and more particularly, to an apparatus and a method for manufacturing an implant having a screw thread formed on an inner circumferential surface or an outer circumferential surface of the amorphous alloy using a press molding method rather than a die casting method.
- Amorphous alloys are known to be suitable for the application of biomaterials due to their high strength, hardness, excellent wear resistance and corrosion resistance.
- a die casting process is currently being developed as a molding process of such an amorphous alloy, which is a method of forming an alloy through a solidification process by heating the alloy, dissolving it in a liquid state at a high temperature, and then injecting it into a mold.
- an inert gas atmosphere such as argon or a vacuum atmosphere is required.
- the amorphous alloy shows almost elastic behavior with little plastic deformation under mechanical load at room temperature.
- the thread is formed by rolling or tapping the amorphous alloy, it will cause failure of the material and damage of the tool.
- the metal implant material used in the human body should be applied to a stable material that does not cause electrical corrosion in Ringer's solution, preferably a material having high hardness and high strength that can withstand repeated friction, mainly titanium (Ti) alloy or Co- Cr-based alloys are widely used.
- Such titanium (Ti) alloys or Co-Cr based alloys have excellent mechanical / electrical properties, but have high melting points, making it difficult to apply molding processes such as die casting, and thus they are manufactured by three-dimensional machining.
- Zr-Ti alloys or Pd alloys are known to be applicable to the human body.
- a die casting method cannot be formed due to the specification of the amorphous alloy, so it is difficult to design a mold such as setting a gate for injection of a molten metal, and to use a die casting method. It is difficult to secure the surface quality of the die, and the apparatus for die casting molding is expensive, and since the ingot has to be re-dissolved in a liquid state at a high temperature, the mold life is very short and the process cycle time is lengthened.
- the present invention is to solve the above-described problems, an apparatus for producing an implant using an amorphous alloy that can be produced quickly in a relatively low cost without using a die-casting method in which the thread formed on the inner peripheral surface or the outer peripheral surface using a die casting method And to provide a method for manufacturing the object.
- an apparatus for manufacturing an implant using an amorphous alloy of the present invention includes a heating unit for heating a preform made of an amorphous alloy in a semi-solid state; A forming part for forming a thread in the heated preform using a press molding mold; Characterized in that consisting of a cooling unit for cooling the preform is formed thread.
- the molded part may include: a first outer mold part in which an inner surface is recessed and a first screw thread is formed; A first cylinder for moving the first outer mold; A second outer mold portion coupled to the first outer mold portion, the inner side of which is recessed in a concave direction in the opposite direction of the first outer mold portion and in which a second screw thread is formed; And a second cylinder for moving the second outer mold part, wherein the heated semi-solid preform is disposed between the first outer mold part and the second outer mold part, so that the first screw thread and the first screw thread are formed on the outer circumferential surface of the preform.
- An external thread corresponding to the second thread is formed, and the coefficient of thermal expansion of the first outer mold part and the second outer mold part is larger than that of the preform.
- the molding part may include a core part disposed between the first outer mold part and the second outer mold part and having a third screw thread formed on an outer circumferential surface thereof; And a third cylinder for elevating the core part, wherein the core part is inserted into an inner circumferential groove in a preform disposed between the first outer mold part and the second outer mold part, and the third cylinder is formed on the inner circumferential surface of the preform.
- the internal thread corresponding to the thread is formed.
- the core part is rotated by the third cylinder, and the third cylinder rotates the core part inserted into the inner circumferential groove of the preform to take it out of the preform.
- the preform manufacturing step of manufacturing the amorphous alloy in an ingot preform in the manufacturing method of the implant with the thread formed on the outer circumferential surface or the inner circumferential surface, the preform manufacturing step of manufacturing the amorphous alloy in an ingot preform; A heating step of heating the preform to a semisolid state; A batch step of placing the heated preform in a semi-solid state in the press molding mold for thread processing; A machining step of forming a thread in the heated preform using a press molding mold; The preform, which is formed with a screw thread, is cooled and separated from the press molding mold, and the cooling and separating step is performed.
- the preform is higher than the glass temperature (Tg) and lower than the crystallization temperature (Tn: Nose temperature) of the amorphous alloy.
- Tg glass temperature
- Tn crystallization temperature
- the press molding mold and the preform are separated by using the thermal expansion coefficients of the press molding mold and the preform.
- the processing step by using a press molding mold consisting of an outer mold portion surrounding the outside of the preform and a core portion inserted into the preform, threads are formed on the outer circumferential surface and the inner circumferential surface of the heated preform, respectively, and the cooling separation is performed.
- the core portion inserted into the preform is rotated and separated from the preform.
- an implant using the amorphous alloy of the present invention it is possible to manufacture an implant in which the thread is formed on the inner circumferential surface and / or the outer circumferential surface of the amorphous alloy using a press molding method rather than a die casting method. Bars can be rapidly produced implants harmless to the human body at a relatively low cost, thereby improving the economics and productivity.
- FIG. 1 is a block diagram of an apparatus for manufacturing an implant using an amorphous alloy according to an embodiment of the present invention
- FIG. 2 is a flow chart of a method for manufacturing an implant using an amorphous alloy according to an embodiment of the present invention
- FIG. 3 is an explanatory diagram for explaining a manufacturing process of an implant with a screw thread formed on the outer circumferential surface by using the manufacturing apparatus according to the embodiment of the present invention
- FIG. 4 is an explanatory diagram for explaining a manufacturing process of an implant with a screw thread formed on the inner and outer circumferential surfaces by using the manufacturing apparatus according to an embodiment of the present invention
- FIG. 5 is a graph showing a thermoplastic molding process according to an embodiment of the present invention.
- FIG. 1 is a block diagram of an apparatus for manufacturing an implant using an amorphous alloy according to an embodiment of the present invention
- Figure 2 is a flow chart of a method for manufacturing an implant using an amorphous alloy according to an embodiment of the present invention
- Figure 3 is a present invention
- Figure 4 is an explanatory view for explaining a manufacturing process of the implant is formed on the outer circumferential surface using the manufacturing apparatus according to the embodiment of Figure 4
- Figure 4 of the implant formed on the inner and outer circumferential surface using the manufacturing apparatus according to an embodiment of the present invention It is explanatory drawing for demonstrating a manufacturing process
- FIG. 5 is a graph which shows the thermoplastic molding process which concerns on the Example of this invention.
- the present invention relates to an apparatus and method for manufacturing an implant in a state in which it is heated to a semi-solid state without melting a preform made of an amorphous alloy in a liquid state.
- an apparatus for manufacturing an implant using an amorphous alloy of the present invention includes a heating unit 20, a molding unit 30, and a cooling unit 40.
- the heating unit 20, the molding unit 30, and the cooling unit 40 are separately shown, but may be installed in one device.
- heating, molding, and cooling can all be performed in one apparatus.
- the heating unit 20 serves to heat the preform 10 made of an amorphous alloy in a semi-solid state.
- the preform 10 is heated to a temperature higher than the glass temperature (Tg: glass temperature) shown in Figure 5 and lower than the crystallization temperature (Tn: Nose temperature) of the amorphous alloy, the preform 10 is Make it semi-solid, not liquid, like jelly.
- Tg glass temperature
- Tn crystallization temperature
- the heating unit 20 preheats the preform 10 by a method such as high frequency heating or heating element heating.
- the molding part 30 serves to form a screw thread in the heated preform 10 using a press molding mold.
- the first outer mold portion 31 When the forming portion 30 is to form a screw thread on the outer peripheral surface of the preform 10, as shown in Figure 3, the first outer mold portion 31, the first cylinder 37, and the first It consists of the 2 outer mold part 33 and the 2nd cylinder 38. As shown in FIG.
- the first outer mold portion 31 is recessed inwardly with an inner surface thereof, the first screw thread 32 is formed, and the second outer mold portion 33 is coupled to the first outer mold portion 31.
- the inner surface is recessed in the opposite direction of the first outer mold portion 31 to form a second screw thread 34.
- the first cylinder 37 and the second cylinder 38 serve to move the first outer mold 31 and the second outer mold 33, respectively.
- the preform 10 in a heated semi-solid state is disposed between the first outer mold part 31 and the second outer mold part 33, and the first screw thread 32 and the outer peripheral surface of the preform 10 are disposed.
- the external thread corresponding to the second thread 34 is formed.
- the molding part 30 further includes a core part 35 and a third cylinder 39 as shown in FIG. 4 when a thread is formed on the inner circumferential surface as well as the outer circumferential surface of the preform 10. Is done.
- the core part 35 is disposed between the first outer mold part 31 and the second outer mold part 33, and a third screw thread 36 is formed on an outer circumferential surface thereof.
- the third cylinder 39 serves to lift up and down while rotating the core part 35.
- the core part 35 is inserted into an inner circumferential groove in the preform 10 disposed between the first outer mold part 31 and the second outer mold part 33, so that the core part 35 is disposed on the inner circumferential surface of the preform 10.
- An internal thread corresponding to the thread 36 is formed.
- the cooling unit 40 cools the preform 10 in which the thread is formed by the forming unit 30 so that the preform 10 can be separated from the press molding mold.
- the thermal expansion coefficients of the first outer mold part 31 and the second outer mold part 33 are larger than the thermal expansion coefficient of the preform 10.
- first and second external mold parts 31 and 33 and the preform 10 are heated or cooled, the first and second external mold parts 31 and 33 are more than the preform 10. Make a lot of deformation.
- the core part 35 inserted into the inner circumferential groove of the preform 10 is rotated by the third cylinder 39 and taken out from the preform 10.
- the implant manufacturing method using the amorphous alloy of the present invention preform manufacturing step (S10), heating step (S20), batch step (S30), processing step (S40), and the cooling separation step (S50) .
- the preform manufacturing step (S10) is a step of manufacturing the amorphous alloy in the preform 10 of the ingot state having a predetermined size and shape.
- the heating step (S20) is a step of heating the preform 10 in a semi-solid state using the heating unit 20.
- the preform 10 is heated higher than the vitrification temperature (Tg) and lower than the crystallization temperature (Tn) of the amorphous alloy.
- the preform 10 made of an amorphous alloy is in a state capable of plastic working.
- the disposition step (S30) is a step of disposing the preform 10 heated in a semi-solid state to the molding portion 30 for thread processing.
- the preform 10 of the heated semi-solid state between the first outer mold part 31 and the second outer mold part 33 is placed. To place.
- the preform 10 is heated and then disposed in the molding part 30, but the preform 10 may be first placed in the molding part 30 and heated.
- the preform 10 disposed between the first external mold part 31 and the second external mold part 33 is disposed in the molding step 30.
- the first outer mold part 31 is formed using the first cylinder 37 and the second cylinder 38 as shown in FIG. 3 (b). And the second outer mold part 33 are moved to press the preform 10 disposed therebetween.
- an external thread corresponding to the first screw thread 32 and the second screw thread 34 is formed on the outer circumferential surface of the preform 10.
- the core part 35 is first formed using the third cylinder 39. 10) the first outer mold part 31 and the second outer mold part 33 are moved by using the first cylinder 37 and the second cylinder 38 after being inserted into the inner circumferential groove. The preform 10 is pressed.
- an external thread corresponding to the first screw thread 32 and the second screw thread 34 is formed on the outer circumferential surface of the preform 10
- an internal thread thread corresponding to the third screw thread 36 is formed on the inner circumferential surface thereof. do.
- the processing step (S40) is made in the state in which the preform 10 is heated to a glass crystallization temperature or more than the crystallization temperature as shown in FIG. 5, the preform 10 is plastically deformed and / or externally threaded. Or internal thread is formed.
- the preform 10 having the thread formed therein is cooled below the vitrification temperature and separated from the press molding mold, that is, the molding part 30.
- the press molding mold and the preform 10 are separated by using the thermal expansion coefficients of the press molding mold and the preform 10.
- the coefficient of thermal expansion of the first outer mold part 31, the second outer mold part 33, and the core part 35 is greater than that of the preform 10 made of an amorphous alloy.
- the first external mold part 31, the second external mold part 33, the core part 35, and the preform 10 are cooled together in the cooling separation step S50, the first external mold is cooled. Since the shrinkage of the part 31, the second outer mold part 33, and the core part 35 occurs more than the preform 10, the preform 10 causes the first outer mold part 31 and the second part to shrink. It is naturally separated from the outer mold part 33 and the core part 35.
- first outer mold part 31 and the second outer mold part 33 are formed in the first cylinder 37 and the second cylinder (c) as shown in FIGS. 3 (c) and 4 (c). 38) the first outer mold part 31 and the second outer mold part 33 are moved to extract the preform 10, that is, the implant, having the thread.
- the third cylinder 39 is illustrated in FIG. 4C.
- the core portion 35 is rotated to separate from the preform 10, and then the first outer mold portion 31 and the second outer mold portion 33 are moved to thereby form an internal thread and an external thread.
- the preform 10, that is, the implant, is formed.
- Apparatus and method for manufacturing an implant using an amorphous alloy of the present invention are not limited to the above-described embodiments, and may be variously modified and carried out within the allowable technical spirit of the present invention.
- the present invention can produce an implant in which the thread is formed on the inner circumferential surface or the outer circumferential surface of the amorphous alloy using a press molding method rather than a die casting method.
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Abstract
Description
Claims (7)
- 비정질합금으로 이루어진 프리폼을 반고체 상태로 가열하는 가열부와;프레스성형금형을 이용하여 가열된 프리폼에 나사산을 형성하는 성형부와;나사산이 형성된 프리폼을 냉각하는 냉각부로 이루어진 것을 특징으로 하는 비정질합금을 이용한 임플란트의 제조장치.
- 제 1항에 있어서,상기 성형부는,내측면이 오목하게 함몰되고 제1나사산이 형성된 제1외부금형부와;상기 제1외부금형부를 이동시키는 제1실린더와;상기 제1외부금형부와 결합되고, 내측면이 상기 제1외부금형부의 반대방향으로 오목하게 함몰되고 제2나사산이 형성된 제2외부금형부와;상기 제2외부금형부를 이동시키는 제2실린더로 이루어지되,상기 제1외부금형부와 제2외부금형부 사이에는 상기 가열된 반고체 상태의 프리폼이 배치되어 상기 프리폼의 외주면에 상기 제1나사산 및 제2나사산에 대응되는 외부나사산이 형성되고,상기 제1외부금형부 및 제2외부금형부의 열팽창계수는 상기 프리폼의 열팽창계수보다 큰 것을 특징으로 하는 비정질합금을 이용한 임플란트의 제조장치.
- 제 2항에 있어서,상기 성형부는,상기 제1외부금형부와 제2외부금형부 사이에 배치되고, 외주면에 제3나사산이 형성된 코어부와;상기 코어부를 승강시키는 제3실린더를 더 포함하여 이루어지되,상기 코어부는 상기 제1외부금형부와 제2외부금형부 사이에 배치된 프리폼에 내주홈에 삽입되어, 상기 프리폼의 내주면에 상기 제3나사산에 대응되는 내부나사산을 형성하는 것을 특징으로 하는 비정질합금을 이용한 임플란트의 제조장치.
- 제 3항에 있어서,상기 코어부는 상기 제3실린더에 의해 회전되되,상기 제3실린더는 상기 프리폼의 내주홈에 삽입된 상기 코어부를 회전시켜 상기 프리폼으로부터 취출시키는 것을 특징으로 하는 비정질합금을 이용한 임플란트의 제조장치.
- 외주면 또는 내주면에 나사산이 형성된 임플란트의 제조방법에 있어서,비정질합금을 잉곳상태의 프리폼으로 제조하는 프리폼제조단계와;상기 프리폼을 반고체 상태로 가열하는 가열단계와;나사산 가공을 위해 프레스성형금형에 반고체 상태로 가열된 프리폼을 배치하는 배치단계와;프레스성형금형을 이용하여 가열된 프리폼에 나사산을 형성하는 가공단계와;나사산이 형성된 프리폼을 냉각시켜 프레스성형금형으로부터 분리하여 냉각분리단계로 이루어지되,상기 가열단계에서는 상기 프리폼을 유리화온도(Tg:Glass temperature)보다 높고 비정질합금의 결정화온도(Tn:Nose temperature)보다 낮게 가열하며,상기 냉각분리단계에서는 상기 프리폼을 유리화온도 미만으로 냉각시키는 것을 특징으로 하는 비정질합금을 이용한 임플란트의 제조방법.
- 제 5항에 있어서,상기 냉각분리단계에서는 상기 프레스성형금형과 프리폼의 열팽창계수를 이용하여 상기 프레스성형금형과 프리폼을 분리시키는 것을 특징으로 하는 비정질합금을 이용한 임플란트의 제조방법.
- 제 5항 또는 제 6항에 있어서,상기 가공단계에서는,상기 프리폼의 외부를 감싸는 외부금형부와, 상기 프리폼의 내부에 삽입되는 코어부로 이루어진 프레스성형금형을 이용하여, 가열된 프리폼의 외주면 및 내주면에 각각 나사산을 형성하고,상기 냉각분리단계에서는, 상기 프리폼 내부에 삽입된 상기 코어부를 회전시켜 상기 프리폼으로부터 분리시키는 것을 특징으로 하는 비정질합금을 이용한 임플란트의 제조방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US13/806,309 US8656751B2 (en) | 2010-06-23 | 2011-06-20 | Apparatus and method for manufacturing implant using amorphous alloy |
CN201180030551.7A CN102946821B (zh) | 2010-06-23 | 2011-06-20 | 利用非晶态合金的植体的制造装置及其制造方法 |
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KR1020100059423A KR101104191B1 (ko) | 2010-06-23 | 2010-06-23 | 비정질합금을 이용한 임플란트의 제조장치 및 제조방법 |
KR10-2010-0059423 | 2010-06-23 |
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WO2011162512A2 true WO2011162512A2 (ko) | 2011-12-29 |
WO2011162512A3 WO2011162512A3 (ko) | 2012-05-03 |
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US (1) | US8656751B2 (ko) |
KR (1) | KR101104191B1 (ko) |
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WO (1) | WO2011162512A2 (ko) |
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US9771642B2 (en) * | 2012-07-04 | 2017-09-26 | Apple Inc. | BMG parts having greater than critical casting thickness and method for making the same |
KR101798815B1 (ko) | 2017-02-02 | 2017-11-16 | 박희준 | 티타늄 단조공법을 이용한 임플란트 나사 제조장치 및 이를 이용한 임플란트나사 제조방법 |
WO2019082154A1 (pt) * | 2017-10-26 | 2019-05-02 | Universidade Do Minho | Implante dentário em zircónia ou alumina com funções elétricas curativas e respetivo método de obtenção |
EP3701904A1 (en) * | 2017-10-26 | 2020-09-02 | Universidade do Minho | Dental implant with functional gradient and its production process |
KR102331707B1 (ko) * | 2019-11-12 | 2021-11-26 | 한국생산기술연구원 | 무금형 임플란트 성형 장치 |
CN112916694A (zh) * | 2020-12-29 | 2021-06-08 | 东莞立德生物医疗有限公司 | 一种耐腐蚀骨科可降解螺钉及其制备方法 |
CN112743045B (zh) * | 2020-12-29 | 2023-08-04 | 东莞立德生物医疗有限公司 | 一种骨组织固定用镁螺钉及其制备方法 |
CN113751598B (zh) * | 2021-11-10 | 2022-03-04 | 北京融创汇智科技有限责任公司 | 一种制备口腔种植体的塑性成型模具及方法 |
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KR101104191B1 (ko) | 2012-01-09 |
WO2011162512A3 (ko) | 2012-05-03 |
CN102946821A (zh) | 2013-02-27 |
CN102946821B (zh) | 2015-06-17 |
US8656751B2 (en) | 2014-02-25 |
KR20110139379A (ko) | 2011-12-29 |
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