JP5529727B2 - 補綴エレメント及びこれに係る製造方法 - Google Patents
補綴エレメント及びこれに係る製造方法 Download PDFInfo
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- JP5529727B2 JP5529727B2 JP2010509909A JP2010509909A JP5529727B2 JP 5529727 B2 JP5529727 B2 JP 5529727B2 JP 2010509909 A JP2010509909 A JP 2010509909A JP 2010509909 A JP2010509909 A JP 2010509909A JP 5529727 B2 JP5529727 B2 JP 5529727B2
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Description
Claims (27)
- 内側に寛骨臼座部(11a)を備え、金属材料で製作されたキャップ(11)を有する補綴エレメントであって、
キャップ(11)は、座部(11a)を補強する内壁(16)と、複数の空洞(18)を作っているセルを有する格子(12)からなる外層部とを有し、これら空洞は三次元的に配置され開口し互いに連通し且つ連結しており、格子(12)は中実で内壁(16)の外側に向いている部分を有する補綴エレメントにおいて、
前記格子(12)の少なくとも一部は、補綴エレメントの本体全体或いはその一部に亘る空間において繰り返される一種以上の型式の複数の幾何学形状メッシュ(13)によって連続性を途切らすことなく形成され、当該格子は、開口した単位セルが連なるセル状形態を有して、空洞領域(18)を区切りつつ空間的に延在する複数の多角形(413)を画定して、格子(12)が骨結合を促進させることができるようにし、
前記格子(12)が、その下部に、前記内壁(16)と物理的に連続した基層(16a)を有し、
前記幾何学形状メッシュ(13)が、格子(12)における配置姿勢を異にするが全て同一の形状とサイズを有し、そして、
前記幾何学形状メッシュ(13)の各々は、各頂点が共平面上にない多角形の形状を有し、各単位セルの自由開口面積は、相当直径0.3mm〜1.5mmの範囲の円に相当する
ことを特徴とする、補綴エレメント。 - 内側に寛骨臼座部(11a)を備え、金属材料で製作されたキャップ(11)を有する補綴エレメントであって、
キャップ(11)は、座部(11a)を補強する内壁(16)と、複数の空洞(18)を作っているセルを有する格子(12)からなる外層部とを有し、これら空洞は三次元的に配置され開口し互いに連通し且つ連結しており、格子(12)は中実で内壁(16)の外側に向いている部分を有する補綴エレメントにおいて、
前記格子(12)の少なくとも一部は、補綴エレメントの本体全体或いはその一部に亘る空間において繰り返される一種以上の型式の複数の幾何学形状メッシュ(13)によって連続性を途切らすことなく形成され、当該格子は、開口した単位セルが連なるセル状形態を有して、空洞領域(18)を区切りつつ空間的に延在する複数の多角形(413)を画定して、格子(12)が骨結合を促進させることができるようにし、
前記格子(12)が、その下部に、前記内壁(16)と物理的に連続し、かつ、基層(16a)を有し、そして、
前記幾何学形状メッシュ(13)の各々は、各頂点が共平面上にない多角形の形状を有し、各単位セルの自由開口面積は、相当直径0.3mm〜1.5mmの範囲の円に相当する
ことを特徴とする、補綴エレメント。 - 前記幾何学形状メッシュ(13)が、格子(12)における配置姿勢を異にするが全て同一の形状とサイズを有していることを特徴とする、請求項2に記載の補綴エレメント。
- 前記幾何学形状メッシュ(13)が、内壁(16)を構成している領域の近傍でより細かくなっていることを特徴とする、請求項2に記載の補綴エレメント。
- 前記相当直径は0.6mmであることを特徴とする、請求項1又は2に記載の補綴エレメント。
- 前記幾何学形状メッシュ(13)の各々は、角度付セグメントで各辺が形成されている第一の多角形部分(113)と、第二(213)及び第三(313)の部分とで構成され、これら第二及び第三の部分は角度付セグメントの形状であることを特徴とする、請求項1〜5のいずれか一項に記載の補綴エレメント。
- 前記第一の多角形部分(113)は、四辺形であることを特徴とする、請求項6に記載の補綴エレメント。
- 角度付セグメントを有する前記第二(213)及び前記第三(313)の部分が互いに交わっており、且つ、前記第一の部分(113)の上に、一方が当該第一の部分の一辺上に来て他方が当該第一の部分の他辺(113)上に来るように重なり合っていることで、空間において各頂点が共平面上にない複数の六角形(413)が画定されていることを特徴とする、請求項6又は7に記載の補綴エレメント。
- 前記幾何学形状メッシュ(13)の各々が三次元的に配置された4個の六角形(413)を画定することを特徴とする、請求項8に記載の補綴エレメント。
- 前記金属材料がチタン合金であることを特徴とする、請求項1〜9のいずれか一項に記載の補綴エレメント。
- 前記チタン合金が合金Ti6A14Vであることを特徴とする、請求項10に記載の補綴エレメント。
- 前記金属材料がコバルト合金からなることを特徴とする、請求項1〜9のいずれか一項に記載の補綴エレメント。
- 前記キャップ(11)は回転楕円形状を有することを特徴とする、請求項1〜12のいずれか一項に記載の補綴エレメント。
- 前記キャップ(11)は円錐台形状を有することを特徴とする、請求項1〜12のいずれか一項に記載の補綴エレメント。
- 前記キャップ(11)は複数の穴部(17)を有し、該穴部は部分(19)によって周縁に沿う境界が画定されていることを特徴とする、請求項1〜14のいずれか一項に記載の補綴エレメント。
- 内側に寛骨臼座部(11a)を備えたキャップ(11)を有する補綴エレメントを製作する方法において、補綴エレメントは、一連の連続する平行で互いに隣接しあう固層によって、座部(11a)を補強するキャップ(11)の内壁(16)を構成するように構成され、且つ、どの一層もキャップ(11)の外層部の少なくとも一部と物理的に連続するように構成され、外層部を構成する各層は、所定の最終形状に合わせてコーディネートされ、これら複数の層を不連続の形態で得て、複数の空洞(18)を作るセルの格子(12)を定め、これら空洞(18)は三次元的に配置され、開口して連通し互いに連結しており、また格子(12)は内壁(16)の外側に向く部分と物理的に連続し、
格子(12)は、内壁(16)と物理的に連続しており、且つ格子に連続性の途切れた個所はなく、補綴エレメントの本体全体或いはその一部に亘る空間において繰り返される一種以上の型式の複数の幾何学形状メッシュ(13)を提供しており、当該格子は、開口した単位セルが連なったセル状形態を有し、空洞部(18)を区切りつつ三次元的に配置された複数の多角形(413)を画定することで、格子(12)が骨結合を促進させることができるようにし、
前記内壁(16)が、基層(16a)を得て、そして、
前記複数の層を作る段階において、前記格子(12)は、開口した多角形の単位セルが連なり各頂点が共平面にないセル状形態からなる幾何学形状メッシュ(13)を提供するべく、その表面に所望の開口セル状形態で画定され、各単位セルの自由開口面積は相当直径0.3mm〜1.5mmの範囲の円に相当する
ことを特徴とする、補綴エレメントの製造方法。 - 前記複数の層を作る前記段階は、EBM(電子ビーム溶解)技法を利用することを特徴とする、請求項16に記載の方法。
- 前記複数の層を作る前記段階は、DMSLS(直接金属選択的レーザ焼結)技法を用いることを特徴とする、請求項16に記載の方法。
- 前記相当直径は0.6mmであることを特徴とする、請求項16に記載の方法。
- 前記幾何学形状メッシュ(13)は、各辺が角度付セグメントである第一の多角形部分(113)と、角度付セグメントの形をとる第二(213)及び第三(313)の部分で構成されることを特徴とする、請求項16又は19に記載の方法。
- 前記第一の多角形部分(113)は四辺形の形状であることを特徴とする、請求項20に記載の方法。
- 角度付セグメントを有する第二(213)及び第三(313)の部分が互いに交わっており、且つ、第一の部分(113)の上に、一方が当該第一の部分の一辺上に来て他方が当該第一の部分の他辺(113)上に来るように重なり合っていることで、空間において各頂点が共平面上にない複数の六角形(413)が画定されていることを特徴とする、請求項20又は21に記載の方法。
- 前記幾何学形状メッシュ(13)の各々が三次元的に配置された4個の六角形(413)で画定されていることを特徴とする、請求項22に記載の方法。
- 所望の粒度分布の金属粉体を用い、この粉体は所望の場所に所望のシーケンスで一層ずつ固定されて所望の格子(12)を得ることを特徴とする、請求項16〜23の何れかの一項に記載の方法。
- チタン系の粉体を用いることを特徴とする、請求項24に記載の方法。
- チタン合金Ti6A14Vを用いることを特徴とする、請求項25に記載の方法。
- コバルト合金を用いることを特徴とする、請求項24に記載の方法。
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IT000092A ITUD20070092A1 (it) | 2007-05-29 | 2007-05-29 | Elemento protesico e relativo procedimento di realizzazione |
PCT/IB2008/001354 WO2008146141A2 (en) | 2007-05-29 | 2008-05-29 | Prosthetic element and relative method to make it |
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US8728387B2 (en) | 2005-12-06 | 2014-05-20 | Howmedica Osteonics Corp. | Laser-produced porous surface |
US7578851B2 (en) | 2005-12-23 | 2009-08-25 | Howmedica Osteonics Corp. | Gradient porous implant |
US20090177287A1 (en) | 2006-03-31 | 2009-07-09 | Sintea Biotech S.P.A. | Endoprosthesis for Orthopedic Applications |
DE102006047663A1 (de) * | 2006-09-29 | 2008-04-03 | Aesculap Ag & Co. Kg | Augmentationskomponente für Knochenimplantate |
ITUD20070092A1 (it) | 2007-05-29 | 2008-11-30 | Lima Lto S P A | Elemento protesico e relativo procedimento di realizzazione |
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2007
- 2007-05-29 IT IT000092A patent/ITUD20070092A1/it unknown
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- 2008-05-29 EP EP19153837.0A patent/EP3495003A1/en active Pending
- 2008-05-29 JP JP2010509909A patent/JP5529727B2/ja active Active
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- 2008-05-29 ES ES08762734.5T patent/ES2646268T3/es active Active
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EP2164428A2 (en) | 2010-03-24 |
JP2010527725A (ja) | 2010-08-19 |
EP2164428B1 (en) | 2017-08-09 |
US8454705B2 (en) | 2013-06-04 |
US20100191345A1 (en) | 2010-07-29 |
EP3263143B1 (en) | 2019-03-20 |
WO2008146141A2 (en) | 2008-12-04 |
WO2008146141A3 (en) | 2009-05-22 |
EP3263143A1 (en) | 2018-01-03 |
ES2728061T3 (es) | 2019-10-22 |
ES2646268T3 (es) | 2017-12-13 |
EP3495003A1 (en) | 2019-06-12 |
ITUD20070092A1 (it) | 2008-11-30 |
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