JP2921016B2 - Biological composite materials - Google Patents
Biological composite materialsInfo
- Publication number
- JP2921016B2 JP2921016B2 JP2100004A JP10000490A JP2921016B2 JP 2921016 B2 JP2921016 B2 JP 2921016B2 JP 2100004 A JP2100004 A JP 2100004A JP 10000490 A JP10000490 A JP 10000490A JP 2921016 B2 JP2921016 B2 JP 2921016B2
- Authority
- JP
- Japan
- Prior art keywords
- particles
- base
- fujisawa
- capsule
- particle
- 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
- 239000002131 composite material Substances 0.000 title claims description 4
- 239000002245 particle Substances 0.000 claims description 39
- 239000002775 capsule Substances 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 11
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 239000010936 titanium Substances 0.000 description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 7
- 238000005245 sintering Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 210000004746 tooth root Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000012620 biological material Substances 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
Landscapes
- Dental Preparations (AREA)
- Powder Metallurgy (AREA)
- Materials For Medical Uses (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、人工歯根、人工関節などに用いるための生
体用複合材料に関するものである。Description: TECHNICAL FIELD The present invention relates to a composite material for a living body for use in artificial dental roots, artificial joints, and the like.
［従来の技術］ 従来、生体用材料、例えば人工歯根、人工関節などの
材料としては、人体に親和性のあるチタン（Ti）やアル
ナ（Al2O3）などのセラミックス材が用いられている。[Prior Art] Conventionally, ceramic materials such as titanium (Ti) and aluna (Al 2 O 3 ), which are compatible with the human body, have been used as materials for living bodies, for example, artificial tooth roots and artificial joints. .
［発明が解決しようとする課題］ この場合、チタン（Ti）を用いると靭性はあるが、比
重が約4.0であり、「重い」という問題があり、またア
ルナ（Al2O3）などのセラミックス材は、比重が約3.0で
重さは適当であるが、「脆い」という欠点がある。[Problems to be Solved by the Invention] In this case, titanium (Ti) has toughness, but has a specific gravity of about 4.0, has a problem of being "heavy", and has a problem of being heavy, such as alumina (Al 2 O 3 ). The material has a specific gravity of about 3.0 and an appropriate weight, but has the disadvantage of being "brittle".
本発明は、上記事情を考慮してなされたもので、人体
に親和性があり、しかも重さや靭性が良好な生体用複合
材料を提供することを目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a biological composite material that has an affinity for the human body and has good weight and toughness.
［課題を解決するための手段］ 本発明は、上記の目的を達成するために、Ti及びAl2O
3の一方を母粒子とし、他方のAl2O3又はTiを子粒子と
し、上記母粒子を多数の子粒子で覆って接合させてカプ
セル粉粒体を形成したものである。[Means for Solving the Problems] The present invention provides Ti and Al 2 O
3 of one of the mother particles, the other Al 2 O 3 or Ti as the daughter particles, and forming a capsule powder or granular material by bonding over the mother particles in a number of daughter particles.
［作用］ 上記の構成によれば、Al2O3とTiの一方を母粒子と
し、他方を子粒子としたカプセル粉粒体を形成すること
で、両者の利点を合せ持った重さや靭性が良好な生体用
材料とすることができる。[Function] According to the above configuration, by forming a capsule powder body having one of Al 2 O 3 and Ti as a base particle and the other as a child particle, the weight and toughness having both advantages are obtained. Good biomaterials can be obtained.
［実施例］ 以下、本発明の好適実施例を添付図面に基づいて説明
する。Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
第１図はTiを母粒子としたカプセル粉粒体10の拡大断
面図を示す。FIG. 1 is an enlarged cross-sectional view of a capsule powder 10 using Ti as a base particle.
先ず、Tiを粒径100μ以下の粉とし、これを母粒子11
とし、その表面に、粒径10μ以下のAl2O3の子粒子12を
多数固定化する。この子粒子12の母粒子11の表面への固
定化は、特開昭62−250942号公報に開示されるような高
速気流中衝撃法や機械的衝撃法等で子粒子12を母粒子11
の表面にメカニカルアローイングさせ、より確実に母粒
子11に固定化させてカプセル粉粒体10を形成する。この
カプセル粒子10を成型形枠（図示せず）内に入れ、ホッ
トプレスなどや通常のセラミック成形と同じ成形法によ
り所定の形状に成型することで、第２図に示すように、
子粒子12が溶融してベース層13となり、そのベース層13
に母粒子11であるチタン（Ti）が分散したTi分散アルミ
ナ成形体14が成型できる。またこの成形体14の表面15
は、適宜機械加工を施し、人工骨や歯根の形状に加工す
る。First, Ti was made into a powder having a particle size of 100 μ or less, which was
On the surface, a large number of Al 2 O 3 child particles 12 having a particle size of 10 μ or less are fixed. The immobilization of the child particles 12 to the surface of the base particles 11 is performed by a high-speed air current impact method or a mechanical impact method as disclosed in Japanese Patent Application Laid-Open No. 62-250942.
Is mechanically attached to the surface of the base particles 11 to be more securely fixed to the base particles 11 to form the capsule powder 10. By placing the capsule particles 10 in a molding frame (not shown) and molding them into a predetermined shape by hot pressing or the same molding method as ordinary ceramic molding, as shown in FIG.
The child particles 12 are melted to form the base layer 13 and the base layer 13
Then, a Ti-dispersed alumina compact 14 in which titanium (Ti) as the base particles 11 is dispersed can be molded. Also, the surface 15 of the molded body 14
Is appropriately machined and processed into the shape of an artificial bone or a tooth root.
第３図は、アルミナ（Al2O3）を粒径100μ以下の母粒
子16とし、この母粒子16に、粒径10μ以下のTiの子粒子
17をメカニカルアローイングさせて母粒子16に固定化さ
せてカプセル粉粒体10を形成する。このカプセル粉粒体
10を密に集合させた状態でプラズマ焼結法などで子粒子
17を溶融させることで、第４図に示すようカプセル粉粒
体10の子粒子17同士が一体となってベース層18となり、
そのベース層18に母粒子16であるアルミナが分散したAl
2O3分散型チタン成形体19が成型できる。また成型体19
の表面20は、滴宜機械加工を施して人工骨や歯根の形状
に加工する。。FIG. 3 shows that alumina (Al 2 O 3 ) is used as a base particle 16 having a particle diameter of 100 μ or less.
The capsule 17 is formed by fixing the particles 17 to the base particles 16 by mechanical arrowing. This capsule powder
In the state where 10 are densely assembled, child particles are formed by plasma sintering etc.
By melting 17, the child particles 17 of the capsule granular material 10 are integrated into a base layer 18 as shown in FIG.
Al in which alumina as base particles 16 is dispersed in the base layer 18
A 2 O 3 dispersed titanium compact 19 can be molded. Molded body 19
The surface 20 is machined into a shape of an artificial bone or a tooth root. .
また、第１図に示したアルミナを母粒子11とするカプ
セル粉粒体10で第２図に示すTi分散アルミナ成形体14を
成型する場合、子粒子12であるアルミナが母粒子11のチ
タンより融点が高く焼結時に溶融しにくいため、第５図
に示すように、アルミナの子粒子12に１μ程度のマグネ
シア（MgO）からなる孫粒子21を固定化させた後、その
子粒子12を孫粒子21ごと母粒子11に固定化させてカプセ
ル粉粒体10を形成する。このように子粒子12に孫粒子21
を固定化させると、孫粒子21が焼結助剤となり、焼結成
形時に焼結温度が下がり焼結が容易になる。In the case of molding the Ti-dispersed alumina compact 14 shown in FIG. 2 with the capsule granules 10 having alumina as the base particles 11 shown in FIG. Since the melting point is so high that it is difficult to melt during sintering, as shown in FIG. 5, the progeny particles 21 made of magnesia (MgO) of about 1 μm are immobilized on the progeny particles 12 of alumina, The whole 21 is fixed to the base particles 11 to form the capsule powder 10. In this way, the grandchild particle 21 is added to the child particle 12
Is immobilized, the grandchild particles 21 serve as a sintering aid, so that the sintering temperature is reduced during sintering and the sintering is facilitated.
［発明の効果］ 以上説明したことから明らかなように本発明によれば
次のごとき優れた効果を発揮する。[Effects of the Invention] As is clear from the above description, according to the present invention, the following excellent effects are exhibited.
（１）Al2O3とTiの一方を母粒子とし、他方を子粒子と
したカプセル粉粒体を形成することで、両者の利点を合
せ持った重さや靭性が良好な生体用材料とすることがで
きる。(1) By forming a capsule powder having one of Al 2 O 3 and Ti as a base particle and the other as a child particle, a biomaterial having both advantages and good weight and toughness is obtained. be able to.
第１図は本発明の一実施例を示す拡大断面図、第２図
は、第１図のカプセル粉粒体で成型した成形体の拡大断
面図、第３図は本発明の他の実施例を示す拡大断面図、
第４図は第３図のカプセル粉粒体で成型した成形体の拡
大断面図、第５図は本発明のさらに他の実施例を示す拡
大断面図である。 図中、10はカプセル粉粒体、11,16は母粒子、12,17は子
粒子である。FIG. 1 is an enlarged sectional view showing an embodiment of the present invention, FIG. 2 is an enlarged sectional view of a molded article molded from the capsule powder of FIG. 1, and FIG. 3 is another embodiment of the present invention. An enlarged sectional view showing the
FIG. 4 is an enlarged sectional view of a molded article molded from the capsule powder of FIG. 3, and FIG. 5 is an enlarged sectional view showing still another embodiment of the present invention. In the figure, 10 is a capsule granule, 11 and 16 are mother particles, and 12 and 17 are child particles.
フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｂ２２Ｆ 1/02 Ｂ２２Ｆ 1/02 Ｄ Ｃ２２Ｃ 1/05 Ｃ２２Ｃ 1/05 Ｅ 32/00 32/00 Ｈ (72)発明者 日野 隆司 神奈川県藤沢市土棚８番地 いすゞ自動 車株式会社藤沢工場内 (72)発明者 山本 尚孝 神奈川県藤沢市土棚８番地 株式会社い すゞ中央研究所内 (72)発明者 柴田 英孝 神奈川県藤沢市土棚８番地 株式会社い すゞ中央研究所内 (72)発明者 伊吹 明 神奈川県川崎市川崎区殿町３丁目25番１ 号 いすゞ自動車株式会社川崎工場内 (72)発明者 西本 睦男 神奈川県藤沢市土棚８番地 いすゞ自動 車株式会社藤沢工場内 (72)発明者 山下 徳郎 神奈川県藤沢市土棚８番地 株式会社い すゞ中央研究所内 (72)発明者 田中 洋祐 神奈川県藤沢市土棚８番地 株式会社い すゞ中央研究所内 (72)発明者 宗村 昌幸 神奈川県藤沢市土棚８番地 株式会社い すゞ中央研究所内 (72)発明者 中川 栄一 神奈川県藤沢市土棚８番地 株式会社い すゞ中央研究所内 (72)発明者 上村 正 神奈川県藤沢市土棚８番地 株式会社い すゞ中央研究所内 (56)参考文献 特開 昭61−160905（ＪＰ，Ａ) 特開 昭62−250942（ＪＰ，Ａ) 特開 平３−264602（ＪＰ，Ａ) 特開 平３−274205（ＪＰ，Ａ) 特開 平３−146626（ＪＰ，Ａ) 特開 平３−285003（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) C22C 1/05 B22F 1/00 - 1/02 A61K 6/04,6/027 A61L 27/00 Continued on the front page (51) Int.Cl. 6 Identification symbol FI B22F 1/02 B22F 1/02 D C22C 1/05 C22C 1/05 E 32/00 32/00 H (72) Inventor Takashi Hino Fujisawa, Kanagawa Prefecture 8 Isuzu Motors, Fujisawa Plant, Isuzu Motors Co., Ltd. (72) Inventor Naotaka Yamamoto, 8 Waseda, Fujisawa-shi, Kanagawa Prefecture Isuzu Central Research Institute Co., Ltd. (72) Inventor Hidetaka Shibata, 8 Wasesa, Fujisawa-shi, Kanagawa Inside the Isuzu Central Research Laboratory Co., Ltd. (72) Inventor Akira Ibuki 3-25-1, Tonomachi, Kawasaki-ku, Kawasaki-city, Kanagawa Prefecture Inside the Isuzu Motors Kawasaki Plant (72) Inventor Mutsumi Nishimoto 8 Isuzu, Fujisawa-shi, Kanagawa Prefecture Inside the Fujisawa Plant of Automobile Co., Ltd. (72) Inventor Tokuro Yamashita No. 8 Dosanabe, Fujisawa-shi, Kanagawa Prefecture Isuzu Central Research Institute Co., Ltd. (72) Inventor Yosuke Tanaka No. 8 Dosanabe, Fujisawa-shi, Kanagawa Isuzu Central Research In-house (72) Inventor Masayuki Munemura No. 8 Tsuchiya, Fujisawa City, Kanagawa Prefecture Inside Isuzu Central Research Institute Co., Ltd. (72) Eiichi Nakagawa, Inventor No. 8 Fujisawa City, Kanagawa Prefecture Inside Isuzu Central Research Institute Co., Ltd. (56) References JP-A-61-160905 (JP, A) JP-A-62-250942 (JP, A) JP-A-3-264602 (JP, A) JP-A-3-274205 (JP, A) JP-A-3-146626 (JP, A) JP-A-3-285003 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) C22C 1/05 B22F 1/00-1/02 A61K 6 / 04,6 / 027 A61L 27/00
Claims (1)
l2O3又はTiを子粒子とし、上記母粒子を多数の子粒子で
覆って接合させてカプセル粉粒体を形成したことを特徴
とする生体用複合材料。1. One of Ti and Al 2 O 3 is used as a base particle, and the other A
A composite material for a living body, wherein l 2 O 3 or Ti is used as child particles, and the base particles are covered with a large number of child particles and bonded to form a capsule powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2100004A JP2921016B2 (en) | 1990-04-16 | 1990-04-16 | Biological composite materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2100004A JP2921016B2 (en) | 1990-04-16 | 1990-04-16 | Biological composite materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04301A JPH04301A (en) | 1992-01-06 |
| JP2921016B2 true JP2921016B2 (en) | 1999-07-19 |
Family
ID=14262433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2100004A Expired - Fee Related JP2921016B2 (en) | 1990-04-16 | 1990-04-16 | Biological composite materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2921016B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3856003A2 (en) | 2018-09-28 | 2021-08-04 | Carl Zeiss Meditec, Inc. | Low cost fundus imager with integrated pupil camera for alignment aid |
-
1990
- 1990-04-16 JP JP2100004A patent/JP2921016B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04301A (en) | 1992-01-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |