JP4575295B2 - 粉末積層法による人工骨成形方法 - Google Patents
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- 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
- A61F2002/2817—Bone stimulation by chemical reactions or by osteogenic or biological products for enhancing ossification, e.g. by bone morphogenetic or morphogenic proteins [BMP] or by transforming growth factors [TGF]
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- 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
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- 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
- A61F2/3094—Designing or manufacturing processes
- A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
- A61F2002/30948—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques using computerized tomography, i.e. CT scans
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- 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
- A61F2/3094—Designing or manufacturing processes
- A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
- A61F2002/30952—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques using CAD-CAM techniques or NC-techniques
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- A—HUMAN NECESSITIES
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- 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
- A61F2/3094—Designing or manufacturing processes
- A61F2002/30971—Laminates, i.e. layered products
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- A—HUMAN NECESSITIES
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- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
- A61F2310/00185—Ceramics or ceramic-like structures based on metal oxides
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- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
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- A61F2310/00179—Ceramics or ceramic-like structures
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- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
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- A61F2310/00365—Proteins; Polypeptides; Degradation products thereof
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- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
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Description
[発明の技術分野]
関連技術の説明
本発明は、かかる問題点を解決するために創案されたものである。すなわち、本発明の目的は、対象とする骨と同一形状を有し、かつ生体骨に類似の性質と成分を有し、骨置換術において移植可能な人工骨を成形することができる人工骨成形方法を提供することにある。
b)該粉末層の一部に生体適合性を有する水溶液を噴射し、噴射部分を水和反応で硬化させる部分硬化ステップと、
c)a)とb)のステップを繰り返して積層し、硬化部分が連結した所望の3次元構造の人工骨を成形する人工骨成形ステップと、
前記人工骨成形ステップの後に、前記人工骨を前記水溶液に浸漬して減圧し、前記人工骨の内部に含まれる気体を排出して前記水溶液に置換し、次いで静置して水和反応により前記硬化部分を更に強化する人工骨強化ステップと、
を有することを特徴とする粉末積層法による人工骨成形方法が提供される。
また、前記粉末骨材は、さらにコラーゲン、ポリ乳酸、ポリ乳酸とポリグリコール酸共重合体のいずれかまたはこれらの混合物を含む、ことが好ましい。
以下、本発明の好ましい実施形態を図面を参照して説明する。なお各図において、共通する部分には同一の符号を付し、重複した説明は省略する。
Claims (8)
- a)生体適合性を有しかつ水和反応で硬化する粉末骨材を平面状の粉末層に形成する粉末層形成ステップと、
b)該粉末層の一部に生体適合性を有する水溶液を噴射し、噴射部分を水和反応で硬化させる部分硬化ステップと、
c)a)とb)のステップを繰り返して積層し、硬化部分が連結した所望の3次元構造の人工骨を成形する人工骨成形ステップと、
前記人工骨成形ステップの後に、前記人工骨を前記水溶液に浸漬して減圧し、前記人工骨の内部に含まれる気体を排出して前記水溶液に置換し、次いで静置して水和反応により前記硬化部分を更に強化する人工骨強化ステップと、
を有することを特徴とする粉末積層法による人工骨成形方法。 - 前記粉末骨材は、燐酸カルシウム等の無機成分とその他の骨成分からなり、
前記水溶液は、水と水溶性の生体由来成分生体高分子の混合液もしくは懸濁液である、ことを特徴とする請求項1に記載の粉末積層法による人工骨成形方法。 - 前記粉末骨材は、燐酸カルシウム等のカルシウム塩、ハイドロオキシアパタイト、人骨、動物骨、アルミナのいずれかまたはこれらの混合物である、ことを特徴とする請求項1に記載の粉末積層法による人工骨成形方法。
- 前記粉末骨材は、さらにコラーゲン、ポリ乳酸、ポリ乳酸とポリグリコール酸共重合体のいずれかまたはこれらの混合物を含む、ことを特徴とする請求項3に記載の粉末積層法による人工骨成形方法。
- 前記水溶液は、可溶性コラーゲン、プルテオグルカン、リンクプロテイン、酒石酸ナトリウム、PH 調整液、骨成長因子、フィブリン、PRP(血小板富加血清)、各種多糖類、アミノ酸ポリマー、ポリ乳酸、ポリ乳酸とポリグリコール酸共重合体、またはこれらの混合物と水の混合液もしくは懸濁液であることを特徴とする請求項1に記載の粉末積層法による人工骨成形方法。
- 液層で互いに反応して硬化反応を生じる2種以上の混合液を別々の容器に入れて複数のインクジェットノズルから噴射して噴射部分で混合し硬化させる、ことを特徴とする請求項1に記載の粉末積層法による人工骨成形方法。
- 更に人工骨の高分子成分の架橋反応や重合を高めるための成分は反応や重合を受ける生体材料と別容器に入れて異なるインクジェットノズルから噴射して目的箇所で混合する、ことを特徴とする請求項1に記載の粉末積層法による人工骨成形方法。
- 前記人工骨強化ステップの後に成形した人工骨を滅菌バックに入れ、オートクレーブで高温高圧の水蒸気下、あるいは乾燥高温下で熱処理を行なう、ことを特徴とする請求項1に記載の粉末積層法による人工骨成形方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003284055 | 2003-07-31 | ||
| JP2003284055 | 2003-07-31 | ||
| PCT/JP2004/010701 WO2005011536A1 (ja) | 2003-07-31 | 2004-07-28 | 粉末積層法による人工骨成形方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2005011536A1 JPWO2005011536A1 (ja) | 2007-09-27 |
| JP4575295B2 true JP4575295B2 (ja) | 2010-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2005512498A Expired - Lifetime JP4575295B2 (ja) | 2003-07-31 | 2004-07-28 | 粉末積層法による人工骨成形方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US7758792B2 (ja) |
| EP (1) | EP1649833A4 (ja) |
| JP (1) | JP4575295B2 (ja) |
| WO (1) | WO2005011536A1 (ja) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101381108B1 (ko) | 2011-01-24 | 2014-04-11 | 서울대학교산학협력단 | 말뼈를 이용한 나노 세라믹 골시멘트 및 이의 제조 방법 |
| KR101473447B1 (ko) * | 2014-03-14 | 2014-12-24 | 서울대학교산학협력단 | 말뼈를 이용한 나노 세라믹 골시멘트 및 이의 제조 방법 |
| US9487443B2 (en) | 2014-03-14 | 2016-11-08 | Ricoh Company, Ltd. | Layer stack formation powder material, powder layer stack formation hardening liquid, layer stack formation material set, and layer stack object formation method |
| US9682166B2 (en) | 2014-08-11 | 2017-06-20 | Ricoh Company, Ltd. | Additive manufacturing powder and method of manufacturing the same |
| WO2022074951A1 (ja) | 2020-10-07 | 2022-04-14 | 国立研究開発法人理化学研究所 | 三次元造形物と、その製造方法および制御プログラム |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7758572B2 (en) * | 2004-05-20 | 2010-07-20 | Boston Scientific Scimed, Inc. | Medical devices and methods including cooling balloons having nanotubes |
| EP1979012A2 (en) * | 2005-02-15 | 2008-10-15 | Stichting Voor De Technische Wetenschappen | Dna-based coatings for implants |
| EP1888483A1 (en) * | 2005-06-09 | 2008-02-20 | Dr.h.c. Robert Mathys Stiftung | Shaped article |
| AU2007242324B2 (en) * | 2006-04-21 | 2012-02-02 | Next21 K.K. | Figure-forming composition, process for production of figures in three dimensions by using the composition and process for production of three-dimensional structures |
| WO2008002588A2 (en) * | 2006-06-28 | 2008-01-03 | Pacheco Hector O | Templating and placing artifical discs in spine |
| AU2007287154A1 (en) * | 2006-08-21 | 2008-02-28 | Next21 K.K. | Bone model, bone filler and process for producing bone filler |
| US8210852B2 (en) * | 2007-04-11 | 2012-07-03 | Pacific Research Laboratories, Inc. | Artificial bones and methods of making same |
| KR101031121B1 (ko) * | 2010-04-15 | 2011-04-27 | 주식회사 메타바이오메드 | 인공뼈 및 그 제조방법 |
| US20110288652A1 (en) * | 2010-05-20 | 2011-11-24 | Indiana University Research & Technology Corporation | Materials and methods for treating critically sized defects in mouse bone |
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Also Published As
| Publication number | Publication date |
|---|---|
| US7758792B2 (en) | 2010-07-20 |
| JPWO2005011536A1 (ja) | 2007-09-27 |
| US20100312375A1 (en) | 2010-12-09 |
| EP1649833A4 (en) | 2011-08-17 |
| EP1649833A1 (en) | 2006-04-26 |
| US20070181239A1 (en) | 2007-08-09 |
| WO2005011536A1 (ja) | 2005-02-10 |
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