JP2006528515A - 海綿状の構造体 - Google Patents
海綿状の構造体 Download PDFInfo
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- JP2006528515A JP2006528515A JP2006521224A JP2006521224A JP2006528515A JP 2006528515 A JP2006528515 A JP 2006528515A JP 2006521224 A JP2006521224 A JP 2006521224A JP 2006521224 A JP2006521224 A JP 2006521224A JP 2006528515 A JP2006528515 A JP 2006528515A
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Abstract
【選択図】図1A
Description
或る実施形態では、望ましくは中実、半中実、及び/又は織られている少なくとも1つのバリヤー層を含む多孔性構造体である。
多孔性構造体の別の好適な実施形態は、複数のシートが積み重ねられた開放孔網状体の構造体を含んでおり、各シートは規則的、及び/又は不規則的なパターンでウェブを有しており、各シートの少なくとも1つのウェブは、隣接するシートのウェブに接着されており、積み重ねられたシートの内の少なくとも1つのシートのウェブは、積み重ねられたシートの内の少なくとも他の1つのシートのウェブに対して斜めになっている。
本出願は、2004年7月1日出願の米国仮特許出願第60/584,786号、2004年3月8日出願の第60/551,163号、2003年9月23日出願の第60/505,087号、及び、2004年7月24日出願の第60/490,061号への優先権を請求し、参考文献としてその全体をここに援用する。
以下、本発明の好適な実施形態を詳細に説明してゆくが、その例を添付図面に示している。図面を通して、同一又は類似の部品を表すのに、できる限り同じ参照番号を使用している。本発明を徹底的に理解して頂くために、材料の種類、寸法及び手順を含む好適な実施形態の数多くの具体的な詳細事項について述べる。当業者であれば、本発明の実施形態は、これら詳細事項の多くを使わなくとも実施できることを理解頂けよう。別の例で、周知の装置、方法及びプロセスについては、本発明を曖昧にしないため、詳細には述べていない。
図2A−2Cは、シート200a、200b及び200cを示している。シート200a−cは、多孔性構造体を作るのに有用な何らかの材料で形成されている。或る実施形態では、多孔性構造体110のシート200a−cは同じ材料である。別の実施形態では、多孔性構造体110の2つ又はそれ以上のシート200a−cは、材料が異なっている。或る実施形態では、異なる材料の2つ又はそれ以上のシート200a−cは、一体に接着され多孔性構造体110を形成している。幾つかの実施形態では、シート200a−cは、セラミック、ガラス、ポリマー、紙、又は他の人工又は天然の材料のような非金属で作られている。或る実施形態では、多孔性構造体110は、異なる材料(例えば、ガラス、セラミック、金属、ポリマー又はそれらの組み合わせ)のシートを組み合わせることによって形成され、ハイブリッド構造体を形成している。或る実施形態では、1つ又はそれ以上のシート200a−cは、織られている。例えば、織られたシートが、織られた又は織られていないシートに接着されている。或る実施形態では、シート200a−cの少なくとも1つは、多孔性構造体110の表面粗さに影響を与えるように作られた織られたシートである。
別の実施形態では、紙、メッシュ、革、ガラスフィルムのような天然繊維、蛋白質ベース又は海綿状材料が、シートにされ、その後、本発明による多孔性構造体110に形成される。或る実施形態では、シート200及び/又は構造体110は、炭素材料で作られている。
図6A−1は、多孔性構造体110を製作する或る代表的な方法6000を示している。ステップ6002では、多孔性構造体110は、シート200レベルで作られる。
ステップ6010で、シート200及び/又はシートセット208は、一体に接着される。或る実施形態では、第1シート200のウェブ204の少なくとも一部分が、(例えば、ここに開示されている方法によって)隣接する各シート200又はシートセット208のウェブ204の少なくとも一部分に接着される。或る好適な実施形態では、隣接するウェブ204の部分同士が、シート200の間に堅く接着された交差部を形成する。
ステップ6012では、多孔性構造体110が後処理される。或る実施形態では、多孔性構造体110は、多孔性構造体110が形成(例えば接着)された後、何らかの化学的、機械的又は電気的処理によって後処理される。或る実施形態では、多孔性構造体110を形成する格子シート200の接着された積層材に、エッチングが施される。或る実施形態では、このエッチングによって、構造体110の孔の体積が増大する。
図8A−Cに示している或る実施形態では、複数のシートが、多孔性領域810、空白領域820及びウェブ830を含む接着シートセット208を形成している。多孔性領域810、空白領域820及び/又はウェブ830を所定の構成に整列させることによって、具体的な製品の必要性を解決するように作られた設計の意向が実現される。各層が異なっているため、一体の中実の支持又は取り付け領域を有する開放孔の複雑な構造が容易に準備される。多孔性構造体110の中実領域は、多孔性構造体110に剛性を追加し、及び/又は、取り付けフランジ、ボス又は取り付け点を形成し、好都合である。
或る実施形態では、多孔性構造体110は、医療用移植片に接続されている(例えば接着されている)。多孔性構造体110によって改良される医療用移植片の範疇には、整形外科用の装置と移植片(例えば、脊髄移植片、指頭移植片)、歯科用の装置と移植片、増補装置と移植片(例えば、増補プレート、増補ブロック、増補円板及び事前形成された寛骨臼陥凹)、及び、関節装置と移植片(例えば脊椎片)がある。
当業者には理解頂けるように、ここに開示されている具体的な実施形態は代表的なものであり、ポリマーを含むハイブリッド複合材及び記載している様々な構成を含む多孔性構造体110は、ここに記載している目的及び利点を実現するため、どの様な整形外科設計にも用いることができる。
米国特許第6,673,075号と第5,961,554号は、多孔性椎間スペーサーについて述べており、同特許を参考文献としてここに援用する。或る実施形態では、多孔性構造体110は、多孔性椎間スペーサー1130を形成するのに用いられる(図11C−11E)。或る実施形態では、多孔性椎間スペーサー1130は、例えば、椎間円板1137の一部を置き換え、隣接する椎骨本体1136、1138及び1140の各部を係合させることによって、隣接する脊椎1136、1138の間に挿入される。或る実施形態では、椎間スペーサー1130は、椎骨1138と仙骨1140の間に外科手術で挿入される。或る実施形態では、複数のスペーサー1130が用いられる。或る実施形態では、複数のスペーサーが互いに隣接して挿入される。椎間スペーサー1130の数と、それらのスペーサーが配置される場所は、当該技術では周知の因子に基づいて選択される。或る実施形態では、長方形の3つの椎間スペーサー1130が移植されている(図11D及び11F)。
図12Aは、装置1200(例えば、股部人工器官)のような高い多孔度と低い摩擦特性を必要とする用途に使用するための本発明の或る構成を示している。多孔性構造体1210には、例えば、ここに記載されている何れか他の方法によって部分的にポリマー1220が注入されている。従って、多孔性構造体1210の一部にはポリマーが注入されておらず、多孔性構造体1210の一部にはポリマーが注入されている(例えば、ポリマーは、多孔性構造体1210内で互いに相互に絡み合う)。或る実施形態では、ポリマー1220は、UHMWPE、架橋結合ポリエチレン(XLPE)、或いは当業者には既知の何らかの他の生体適合性を有するポリマー又はポリマーベースの複合材(例えば、ナイロン、ウレタン、シリコンエラストマー、或る種のエポキシ、PEEKポリアセタール、ポリエステル、及び他のその様に理解されているポリマー)である。図12Aでは、ポリマー1220は、第1支承面1230として形成されている。第1支承面1230は、当該技術では周知の方法を使ってモールド成形又は機械加工によって形成することができる。
本発明は、多部品、単一部品及び部分的膝置換システムを含め、どの様な人工器官膝の設計にも有用である。米国特許第6,652,586号と第6,494,914号は、図12Cに示している膝プロテーゼを開示しており、両特許をここに参考文献として援用する。図12Cに示している膝人工器官1250は、大腿骨構成要素1270と脛骨構成要素1280を含んでいる。大腿骨構成要素1270は、顆1272と釘1271を含んでいる。脛骨構成要素1280は、脛骨基部1282と一つ又は複数の釘1283を含んでいる。本発明の顆1272は、中実の(例えば、酸化ジルコニウム面で被覆された)底面1273と(例えば、ここに記載している多孔性構造体110を含む)上面1274を有している。多孔性構造体110は、大腿骨構成要素1270、脛骨構成要素1280、脛骨基部1282、顆1272、釘1271と1281、及び溝1283を含め、膝人工器官1250のどの様な構成要素の全部又は一部でも形成するのに用いることができる。
図13Aと13Bは、ここに記載している方法を使って組み立てられた構造構成要素1300を示している。多孔性構造体1310は、先に述べたように形成され、従来型の機械加工技法(例えば、CNC機械加工、EDM)を使って改造されている。或る実施形態では、多孔性構造体1310は、ポリマー係合構造体として構成されている。或る実施形態では、ポリマーは、多孔性構造体1310内へと、構造体1310内の実質的に全ての孔空間を占めるように注入されるのが望ましい。その結果、当業者が適用するどの様な目的にも利用できる、中実で軽量の構造複合材ができる。例えば、金属の多孔性構造体110に、エポキシ、シリコン、ポリエステル樹脂、アクリル樹脂などの反応性樹脂材料を注入することによって、別のハイブリッド複合材を準備することができる。その結果、注入された材料の他の有益な特性(例えば、音響減衰、エネルギー吸収など)を有する高強度の中実材料が、好適に得られる。或る実施形態では、放射線不透過性ポリマー(例えば、バリウム充填ポリマー)が多孔性構造体110内に注入されている。
米国特許第6,048,204号は、自己タッピンねじ式歯科用移植片を開示しており、同特許を参考文献としてここに援用する。本発明は、本発明の多孔性構造体を使用して図示の移植片を作るか、又は雌ねじ又は雄ねじのような移植片の全部又は一部を本発明の多孔性構造体と置き換えるか、又はこれを使って増補することによって、この装置に改良を加えている。ねじ付の装置を、多孔性構造体110(例えば、金属発泡体)を有する装置と置き換えることによって、多孔性構造体110の格子を生体骨に相互貫入させることができるようになる。歯科用移植片は天然歯根の解剖学的構造に見られる歯根膜靭帯の衝撃保護機能を失うので、生体骨の塊に亘って噛む力のより均一な分布が、従来型のねじによる境界接着とは対照的に、保持性を改善し、移植片の寿命を改良することになる。
本発明は、米国特許第4,156,296号及び第5,984,971号に記載されているような、人工器官関節用の別の用途を有しており、両特許を参考文献としてここに援用する。図17は、そのような人工器官関節の1つ、足指1700を示している。多孔性構造体110は、内部人工器官足指1700のあらゆる部分又は全構成要素に組み込むことができる。内部人工器官足指1700の機構の中で、特に多孔性構造体110で作られるのは、組織と接触する部分である。具体的な構成要素には、軸部1716、1719と面1717、1722が含まれる。例えば、これらの構成要素は、別々に作り、支承面1713、1718に接着して、指骨構成要素1712と中足骨構成要素1711を形成するようにしてもよい。中足骨構成要素1711と指骨構成要素1712は、一体に接着された構成要素として多孔性構造体110を備えた、上記のような一体の部品として形成されるのが望ましい。
本発明により改良されるであろう人工器官肩1900の例(図19A及び19B)が、米国特許第6,679,916号に記載されており、同特許を参考文献としてここに援用する。肩1900の機構の中で、多孔性構造体110で作るのが望ましいものは、ねじ1954と、内側部分1938を含む裏打ちプレート1934である。或る実施形態では、裏打ちプレート1934を、成形されたポリマー(例えば、UHMWPEグレノイド)ソケット1912と一体にするため、ポリマー(例えば、UHMWPE)が、多孔性構造体110に注入される。肩1900の全部又はあらゆる部分に、多孔性構造体110が含まれていてもよい。
図20Aと20Bは、締結システム2000の或る実施形態を示している。多孔性構造体2010は、支承面を備えた多孔性座金へと後処理(例えば、機械加工、穿孔)されている。後処理は、多孔性構造体110(例えば、座金2010)を、型に対してハンマーを使って冷間加工し、及び/又は特定の形状に熱間成形する段階を含んでいる。或る実施形態では、ボルト2020も本発明の多孔性構造体で作られている。或る実施形態では、座金2010とボルト2020は、単一の一体構成要素として形成されている。或る実施形態では、ボルト2020は、多孔性領域に取り囲まれた中実核(例えば、図14D又は1F1参照)で形成されている。最終的な一体の製品は、中実領域と多孔性領域を有する複合材を形成するために後処理される。或る実施形態では、この結果、一つの処置で作られた、完全にアニーリングされ応力が解放された部品となる。
或る実施形態では、靭帯を骨に接合し易くするように設計された医療用移植片を、ここに記載しているように、靭帯の成長を促す多孔度を有する開放孔網状構造体と、骨の成長を促す多孔度を有する開放孔網状構造体の両方を有する単一の装置で実現することができる。
或る実施形態では、複雑な織物が、抗摩擦パッド、横荷重又は半径方向荷重用のブッシュ、又は回転軸受アッセンブリのような支承要素へと生成される。金属格子網状体も、過渡的な接着システムとして、そのような用途に採用される。磨耗プレート又は他の支承体は、ホスト材料(例えば、ポリマー)を、三次元の織られた表面又は接着されたスポンジのような格子(例えば、多孔性構造体110)の網状体に相互貫入させることによって、様々な異なる材料に接着、鋳込みモールド成形、成形、又は他の方法で取り付けられる。或る実施形態では、ブッシュは、射出サイクルの前に、適切に織られた部品を射出金型に挿入することによって、単一の工程で、熱可塑性部品に堅く組み込まれる。
図22は、陰性スポンジ構造体2200を示している。陰性スポンジ構造体2200は、容易に消耗可能なホスト金属(例えば、アルミニウム、マグネシウム、鉄)で(例えば、上記のような)多孔性構造体を形成することによって組み立てられるのが望ましい。ポリマー(例えば、UHMWPE、PTFE、HDPE、ヒドロキシアパタイト、PEEK、ポリグリコール酸、ポリ乳酸、ポリオキシエチレン、及び同様の材料とそれらのコポリマー)は、多孔性構造体全体の少なくとも一部分、及びその全体に亘って注入(例えば、圧縮モールド成形)されるのが望ましい。多孔性構造体は、次いで消耗され(例えば、適切な酸、塩基又は食塩の溶液に溶け)、後に陰性スポンジ構造体2200が残る。
図23Aは、支承面2302、弾性材料2304及び多孔性構造体2306を有する複合材2300を示している。或る実施形態では、多孔性構造体110は、コンプライアンスのある表面係合領域を含んでいる。コンプライアンスのある表面は、金属部品の織物又は多孔性によって係合されるシリコン又はウレタンエラストマーである。或る実施形態では、支承面2302は、耐熱性金属(例えば、チタン、タンタル、ジルコニウム、ハフニウム、プラチナ、ロジウム、ニオブ及びそれらの合金)、金、コバルト−クロム合金、クロム−コバルト−モリブデン合金、アルミニウム、ステンレス鋼、又はそれらの何れかの合金である。或る実施形態では、支承面2302は、酸化ジルコニウムである。弾性材料2304は、どの様な弾性材料でもよいが、ポリマーが望ましい。
図24は、コンプライアンスのあるチャンバ複合材2400を示している。或る実施形態では、コンプライアンスのあるチャンバ複合材2400は、ガス充満コンプライアンスチャンバ2410、支承面2420、多孔性構造体2430、及びダイアフラム2440を有している。或る実施形態では、チャンバ2410には空気又は不活性ガス(例えば、アルゴン)が充填されている。或る実施形態では、支承面2420は、ここに開示している何れかの適した支承面である。或る実施形態では、支承面2420はUHMWPEである。或る実施形態では、ダイアフラム2440は、多孔性構造体2430と一体である。別の実施形態では、ダイアフラム2440は、多孔性構造体2430とは別に形成され、多孔性構造体2430に接着されている。ダイアフラム2440は、チタンであるのが望ましいが、適していればどの様な材料でもよい。或る実施形態では、ダイアフラム2440は、下側の取り付け本体2450に接着されるか、又は電子ビーム溶接されている。下側の取り付け本体2450は、中実材料、多孔性構造体110、又は組織(例えば、骨、靭帯)への取り付けに適していればどの様な材料でもよい。
本発明の或る実施形態では、セラミック本体が、多孔性構造体110内に埋め込まれている。或る実施形態では、セラミック本体は、接着(例えば、シート200の拡散接着)の前に埋め込まれる。或る実施形態では、セラミック本体は、特定の場所(例えば、多孔性構造体110の表面付近)に埋め込まれている。接着後に、後処理が施され、セラミック本体の一部分を露出させるのが望ましい。或る実施形態では、後処理には、多孔性構造体110の一部分をエッチング除去することと、及びセラミック本体を滑らかな低摩擦表面に研削、ラッピング及び/又は研磨することが含まれる。
ここで参照している全ての特許、特許出願、文書及び発行物は、参考文献としてその全体をここに援用する。
Claims (85)
- 海綿状の構造体において、
それぞれのシートが、横方向寸法と、前記横方向寸法の約4倍未満の縦方向寸法とを有する少なくとも1つの開口を有している、複数の接着されたシートを備え、第1のシートの前記少なくとも1つの開口は、少なくとも1枚の他のシートの前記少なくとも1つの開口と部分的に重なっている、海綿状の構造体。 - 前記横方向寸法と前記縦方向寸法は、組織の内植を促すには十分である、請求項1に記載の海綿状の構造体。
- 前記横方向寸法と前記縦方向寸法は、それぞれ約10ミクロンから5000ミクロンの間にある、請求項1に記載の海綿状の構造体。
- 前記横方向寸法と前記縦方向寸法は、それぞれ約100ミクロンから450ミクロンの間にある、請求項1に記載の海綿状の構造体。
- 前記各シートの開口は、複数の曲がりくねった孔を作り出すように配列されている、請求項1に記載の海綿状の構造体。
- 5%から90%の間の多孔度を有している、請求項1に記載の海綿状の構造体。
- 前記複数のシートは、それぞれ、約5%から90%の間の多孔度を有している、請求項1に記載の海綿状の構造体。
- 前記複数のシートの内の1枚は、約5%から90%の間の多孔度を有している、請求項1に記載の海綿状の構造体。
- 前記各開口は、規則的な反復可能なパターンで画定されている、請求項1に記載の海綿状の構造体。
- 前記規則的な反復可能なパターンは、擬似ランダムである、請求項9に記載の海綿状の構造体。
- 少なくとも1枚のシートの前記開口は、他のシートと実質的に同じ規則的な反復パターンで配置されている、請求項1に記載の海綿状の構造体。
- 前記複数のシートの第1のシートは、前記複数のシートの第2のシートに対し斜めに配列されている、請求項1に記載の海綿状の構造体。
- 前記複数のシートの第1のシートは、前記複数のシートの第2のシートに対しずれて配列されている、請求項1に記載の海綿状の構造体。
- 耐熱性金属を備えている、請求項1に記載の海綿状の構造体。
- 前記耐熱性金属は、チタン、タンタル、ジルコニウム、酸化ジルコニウム、ハフニウム、プラチナ、ロジウム、ニオブ及びそれらの合金から成る群から選択される、請求項13に記載の海綿状の構造体。
- 金、アルミニウム、ステンレス鋼、及びそれらの合金から成る群から選択された材料を備えている、請求項1に記載の海綿状の構造体。
- コバルト−クロム、又はクロム−コバルト−モリブデンの合金から成る群から選択された材料を備えている、請求項1に記載の海綿状の構造体。
- 前記構造体は3次元に多孔性である、請求項1に記載の海綿状の構造体。
- 少なくとも1つの開口は、前記構造体の縁部まで伸張している、請求項1に記載の海綿状の構造体。
- 少なくとも1つの実質的に中実の縁部を更に備えている、請求項1に記載の海綿状の構造体。
- 変化する多孔度を有している、請求項1に記載の海綿状の構造体。
- 前記変化する多孔度は、段階的に変化する多孔度である、請求項20に記載の海綿状の構造体。
- 徐々に変化する多孔度を有している、請求項1に記載の海綿状の構造体。
- 複数のウェブが前記開口を画定し、隣接するシートが異なる開口対ウェブの比率を有している、請求項1に記載の海綿状の構造体。
- 複数のウェブが前記開口を画定しており、前記複数のシートは、それぞれ約95:1から1:20の間の開口対ウェブの比率を有している、請求項1に記載の海綿状の構造体。
- 前記ウェブは蛇行している、請求項1に記載の海綿状の構造体。
- 第1のシートは、第2のシートとは異なる厚さを有している、請求項1に記載の海綿状の構造体。
- 前記複数の開口と複数のウェブが前記孔を画定し、隣接する各シートは異なる開口対ウェブの比率を有している、請求項1に記載の海綿状の構造体。
- 前記複数のシートは、孔開き形状である、請求項1に記載の海綿状の構造体。
- 中実の材料に接続するように構成された孔開き形状を有している、請求項1に記載の海綿状の構造体。
- 請求項1の前記海綿状の構造体と、中実の材料とを備えている複合材。
- 前記海綿状の構造体と前記中実の材料は、実質的に同様な材料でできている、請求項31に記載の複合材。
- 前記海綿状の構造体と前記中実の材料は、実質的に異なる材料でできている、請求項31に記載の複合材。
- 医療用移植片の構成要素に接続するように構成された孔開き形状を有している、請求項1に記載の海綿状の構造体。
- 前記医療用移植片は整形外科用移植片である、請求項34に記載の海綿状の構造体。
- 前記医療用移植片は脊椎移植片である、請求項34に記載の海綿状の構造体。
- 前記医療用移植片は歯科用移植片である、請求項34に記載の海綿状の構造体。
- 前記医療用移植片は指頭移植片である、請求項34に記載の海綿状の構造体。
- 前記医療用移植片は増補移植片である、請求項34に記載の海綿状の構造体。
- 前記医療用移植片は関節移植片である、請求項34に記載の海綿状の構造体。
- 少なくとも1つのバリヤー層を更に備えている、請求項1に記載の海綿状の構造体。
- 前記バリヤー層は中実のシートである、請求項43に記載の海綿状の構造体。
- 前記バリヤー層は半中実のシートである、請求項43に記載の海綿状の構造体。
- 前記バリヤー層は織られたシートである、請求項43に記載の海綿状の構造体。
- 前記複数のシートの第1のシートは、前記複数のシートの第2のシートに接着されており、前記複数のシートの前記第1のシートと前記複数のシートの前記第2のシートは、材料が違っている、請求項1に記載の海綿状の構造体。
- 前記複数のシートの第1のシートは織られており、前記複数のシートの第2のシートは織られていない、請求項1に記載の海綿状の構造体。
- 前記複数のシートの内の少なくとも1枚は織られている、請求項1に記載の海綿状の構造体。
- 前記少なくとも1枚の織られたシートは、前記海綿状の構造体の表面粗さに影響を及ぼすように作られている、請求項47に記載の海綿状の構造体。
- 組織係合表面を更に備えている、請求項1に記載の海綿状の構造体。
- 骨の内植を受け入れる様に作られている、請求項1に記載の海綿状の構造体。
- ポリマー係合構造を更に備えている、請求項1に記載の海綿状の構造体。
- コンプライアンスのある表面係合領域を更に備えている、請求項1に記載の海綿状の構造体。
- 医療用移植片を形成するように構成されている、請求項1に記載の海綿状の構造体。
- 医療用移植片の構成部品を形成するように構成されている、請求項1に記載の海綿状の構造体。
- 前記複数のシートの内の少なくとも1枚はポリマーである、請求項1に記載の海綿状の構造体。
- 前記ポリマーは、UHMWPE、PTFE、HDPE、ヒドロキシアパタイト、PEEK、ポリグリコール酸、ポリ乳酸、ポリオキシエチレン、及びそれらのコポリマーから成る群から選択されている、請求項55に記載の海綿状の構造体。
- 海綿状の構造体において、
それぞれのシートが多数のウェブ及び開口を有している複数の積み重ねられたシートであって、各シートの少なくとも1つのウェブは隣接するシートの少なくとも1つのウェブに接着されており、前記接着されたウェブ同士は少なくとも1つの構造要素を形成するように構成されており、隣接するシートの前記開口同士は、前記海綿状の構造体全体に亘る複数の曲がりくねった孔を形成するように構成された配列を有している、複数の積み重ねられたシートを備えている、海綿状の構造体。 - 少なくとも1つの所定の機械的特性を近似するように構成されている、請求項57に記載の海綿状の構造体。
- 前記少なくとも1つの構造要素は柱である、請求項57に記載の海綿状の構造体。
- 前記少なくとも1つの構造要素は梁である、請求項57に記載の海綿状の構造体。
- 前記少なくとも1つの構造要素は土台である、請求項57に記載の海綿状の構造体。
- 組織係合構造体において、
複数の開口を有する複数の積み重ねられ接着されたシートであって、前記積み重ねられたシートの前記開口は、前記複数の積み重ねられたシートを通る複数の曲がりくねった孔を形成するように構成された配列を有しており、前記複数の開口は組織の内植を受け入れる寸法になっている、複数の積み重ねられ接着されたシートを備えている、組織係合構造体。 - 整形外科用移植片において、
それぞれが多数の開口を画定する多数のウェブを備えた複数のシートを有している、第1及び第2の組織係合骨置換構成要素であって、前記複数のシートは互いに接着されて開放孔構造を形成している、第1及び第2の組織係合骨置換構成要素と、
前記第1及び第2の組織係合骨置換構成要素の一部の中に少なくとも部分的には注入されている弾性構成要素と、を備えている整形外科用移植片。 - 前記弾性構成要素はポリマーである、請求項63に記載の整形外科用移植片。
- 前記ポリマーは、UHMWPE、PTFE、HDPE、ヒドロキシアパタイト、PEEK、ポリグリコール酸、ポリ乳酸、ポリオキシエチレン、及びそれらのコポリマーから成る群から選択されている、請求項63に記載の整形外科用移植片。
- 海綿状の構造体を製作する方法において、
それぞれのシートが多数の開口を有している複数のシートを積み重ねる段階と、
各シートをその隣接するシートに接着する段階と、から成る方法。 - 前記接着は化学的接着である、請求項66に記載の方法。
- 前記接着は機械的接着である、請求項66に記載の方法。
- 前記接着は物理的接着である、請求項66に記載の方法。
- 前記接着は拡散接着である、請求項66に記載の方法。
- 前記接着ははんだ付けである、請求項66に記載の方法。
- 前記接着はロウ付けである、請求項66に記載の方法。
- 前記接着されたシートを後処理する段階を更に備えている、請求項66に記載の方法。
- 前記後処理はエッチングを含んでいる、請求項73に記載の方法。
- 前記後処理は、前記海綿状の構造体の多孔度を上げる段階を含んでいる、請求項73に記載の方法。
- 前記多数の開口は規則的な反復パターンに配置されており、前記積み重ねる段階は、
前記複数のシートの内の第1のシートの前記規則的な反復パターンを、前記複数のシートの内の第2のシートの前記規則的な反復パターンに対し斜めに配置する段階を更に含んでいる、請求項66に記載の方法。 - 前記シートは耐熱性金属を含んでいる、請求項66に記載の方法。
- 前記耐熱性金属は、チタン、タンタル、ジルコニウム、酸化ジルコニウム、ハフニウム、プラチナ、ロジウム、ニオブ及びそれらの合金から成る群から選択される、請求項77に記載の方法。
- 前記複数のシートは、金、アルミニウム、ステンレス鋼、及びそれらの合金から成る群から選択された材料を備えている、請求項66に記載の方法。
- 前記複数のシートは、コバルト−クロム、又はクロム−コバルト−モリブデンの合金から成る群から選択された材料を備えている、請求項66に記載の方法。
- 前記積み重ねる段階は、前記シートを平坦ではない固定具に組み付ける段階を含んでいる、請求項66に記載の方法。
- 前記積み重ねる段階は、前記シートをロール状の固定具に組み付ける段階を含んでいる、請求項66に記載の方法。
- 前記積み重ねる段階は、前記シートをモールド型に組み付ける段階を含んでいる、請求項66に記載の方法。
- 前記後処理する段階は、前記複数のシートの少なくとも一部にポリマーを注入する段階を含んでいる、請求項66に記載の方法。
- 前記ポリマーは、UHMWPE、PTFE、HDPE、ヒドロキシアパタイト、PEEK、ポリグリコール酸、ポリ乳酸、ポリオキシエチレン、及びそれらのコポリマーから成る群から選択されている、請求項84に記載の方法。
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JP2010517818A (ja) * | 2007-03-05 | 2010-05-27 | シュティフトゥンク アルフレット − ヴェーゲナー − インスティチュート フェール ポーラー − ウント メーレスフォルシュンク | フラクタル構造化された支持構造体を有する軽量構造 |
US9931438B2 (en) | 2008-01-28 | 2018-04-03 | Ngk Spark Plug Co., Ltd. | Article with foamed surface, implant and method of producing the same |
US10660990B2 (en) | 2008-01-28 | 2020-05-26 | Ngk Spark Plug Co., Ltd. | Article with foamed surface, implant and method of producing the same |
WO2009095960A1 (ja) | 2008-01-28 | 2009-08-06 | Ngk Spark Plug Co., Ltd. | 表面発泡体、生体インプラント及びそれらの製造方法 |
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JP2017508565A (ja) * | 2014-03-25 | 2017-03-30 | オーソペディック イノヴェイション センター インコーポレイテッド | 付加製造法によって製造された抗菌性物品 |
JP2016221055A (ja) * | 2015-06-01 | 2016-12-28 | 株式会社ネクスト21 | インプラント部材とその製造方法 |
JP2019500969A (ja) * | 2016-01-12 | 2019-01-17 | スメド−ティーエイ/ティーディー・エルエルシー | ザラザラした多孔質面を有する整形外科インプラント |
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Also Published As
Publication number | Publication date |
---|---|
MXPA06000874A (es) | 2006-04-19 |
US20050112397A1 (en) | 2005-05-26 |
WO2005009489A9 (en) | 2005-06-09 |
AU2004259762A1 (en) | 2005-02-03 |
EP1648348A2 (en) | 2006-04-26 |
WO2005009729A2 (en) | 2005-02-03 |
WO2005009729A3 (en) | 2005-09-29 |
CA2533534A1 (en) | 2005-02-03 |
US7208222B2 (en) | 2007-04-24 |
EP1648348A4 (en) | 2012-04-18 |
EP1648348B1 (en) | 2015-06-17 |
WO2005009489A3 (en) | 2005-08-25 |
WO2005009489A2 (en) | 2005-02-03 |
ES2546329T3 (es) | 2015-09-22 |
CA2533534C (en) | 2013-03-19 |
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