JP2021522915A - 球形の滑動パートナーとの滑動対を形成するためのインプラント - Google Patents
球形の滑動パートナーとの滑動対を形成するためのインプラント Download PDFInfo
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- JP2021522915A JP2021522915A JP2020562601A JP2020562601A JP2021522915A JP 2021522915 A JP2021522915 A JP 2021522915A JP 2020562601 A JP2020562601 A JP 2020562601A JP 2020562601 A JP2020562601 A JP 2020562601A JP 2021522915 A JP2021522915 A JP 2021522915A
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- implant
- sliding
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- spindle
- height
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- A61F2/02—Prostheses implantable into the body
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- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
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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
- 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
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- A61F2002/3092—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth having an open-celled or open-pored structure
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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
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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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- 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
- 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
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- 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
- A61F2/30—Joints
- A61F2/32—Joints for the hip
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-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00976—Coating or prosthesis-covering structure made of proteins or of polypeptides, e.g. of bone morphogenic proteins BMP or of transforming growth factors TGF
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/24—Materials or treatment for tissue regeneration for joint reconstruction
Abstract
Description
・Aは、LとL’’との間の距離もしくは中心点から回転軸線までの水平距離である。
・rは、スピンドルトーラスを形成する円の半径である。
・rPは、球形の滑動パートナーの半径、つまり補綴物ヘッドの半径である。
・Cは、間隙でありかつ数式Iによれば
C=(r−rP)*2 (数式I)
である。
間隙は、1つの構成では、(半径rPの)補綴物ヘッドの長さの製造技術的に予め設定された最大誤差と、補綴物ヘッドに適した、半球形の滑動領域を備えたインプラントの長さの製造技術的に予め設定された最大誤差の和に相当する。1つの特別な構成では、C>10μm、好適には>25μm、特に好適には≧50μmかつ<500μm、好適には<350μm、特に好適には≦280μmである。
・スピンドルトーラスを形成する円108の半径rは、KGの半径rPよりも大きくなっている。
・50%〜99%、好適には60%〜85%の多孔率
・相互連結性、すなわち個々の孔は少なくとも部分的に互いにつながっている
・100〜1000μmの孔径
が、骨化にポジティブな影響を及ぼす、ということが判った。
・ジルコニア強化アルミナ(ZTA)およびこれに基づきさらに開発された全てのZTA系
・ジルコニアセラミック、特にイットリウム安定化ジルコニア(3Y−TZP)
・酸化セリウムによりジルコニアの正方晶相の安定化が行われるセリア安定化ジルコニア(Ce−TZP)
・ジルコニアを基礎とした別のあらゆる複合材料(この場合、分散質複合成分はアルミン酸塩を基礎としていてよく、希土類の群から例えばGdおよびSm等の、別の安定剤も使用され得る)
を含む、酸化物セラミック材料系を基礎としたものである。
・リング状の構成におけるインプラントのより小さな高さ、したがって骨における極少量のフライス切削加工が必要とされている。
・点状の荷重ではなく、生理的な荷重吸収と類似の、比較的小さな最大値を有する面状の荷重。
・半球形のインサートに比べ、本発明による幾何学形状では、接点に対してより小さな押圧力が生ぜしめられる。
・本発明による幾何学形状を備えたインプラントは、従来の球形の滑動パートナーと無制限に組み合わせることができる。
・変更された幾何学形状は、周知の製造法が適用可能であるため、製造コストに不都合な影響を及ぼすことはない。
・骨における固定および安定化用の金属シェルを省くことができるため、製造時に材料が節減され、これによりコスト面での利点が得られる。
・使用中、本発明によるインプラントは状況に応じて直接に、つまりセメント無しで、または必要な場合にはセメントで固定されて挿入され得る。
2 滑動領域
3 外面、粗いかつ/または構造化された表面
4 生体コーティング
5,109 補綴物のヘッド、球
6 外側面
9 底面
10 端面
100 接点
101,112 環状接触部、接触線
105 スピンドル
106 スピンドルの外面
107 スピンドルの部分区域
108 スピンドルトーラスを表す円
110 正接点
111 接触線の断面
112 接触線
201 滑動領域の頭蓋状の高さ増大部の領域
202 インプラントの頭蓋状の延長部の領域
205 骨接触領域
212,212’ 環状線(方向付け補助)
214 入口ゾーン
216 出口ゾーン
A スピンドルトーラスを表す円の中心点Mからの回転軸線の距離
C 間隙
D1 第1の領域に配置された、滑動領域の最大直径
D2 第2の領域に配置された、滑動領域の最小直径
E,E’ スピンドル外面とLとの交点
F 横断面
H インプラントの高さ
HG 滑動領域の高さ
K 頭蓋状の高さ増大部を表す直線
KG 滑動領域の頭蓋状の高さ増大部を表す直線
K’ 頭蓋状の延長部を表す直線
KG 球形の滑動パートナー
L スピンドルの長手方向軸線、回転軸線
L’,L’’ スピンドルトーラスを表す円の中心点を通る、Lに対して平行な軸線
M スピンドルの中心点
M’,M’’ スピンドルトーラスを表す円の中心点
MP 球形の滑動パートナーの中心点
r スピンドルトーラスを表す円の半径
rP 球形の滑動パートナー(KG、補綴物ヘッド)の半径
R 外面の回転軸線
S,S’ Lに対する垂直面
S1,S2 垂直面S,S’の、長手方向軸線L上の交点
X 頭蓋状の高さ増大部無しのインプラントの、端面の方の最大部
XG 頭蓋状の高さ増大部無しの滑動領域の、端面の方の最大部
X’ 頭蓋状の延長部無しのインプラントの、底面の方の最大部
x 頭蓋状の高さ増大部の高さの差
Y 頭蓋状の高さ増大部のインプラントの最大部
YG 頭蓋状の高さ増大部の滑動領域の最大部
Y’ 頭蓋状の延長部のインプラントの最大部
y 頭蓋状の延長部の高さの差
Claims (15)
- 球形の滑動パートナー(5,109)との滑動対を形成するためのインプラント(1)であって、当該インプラントは、ハーフシェル状またはリング状に形成されておりかつ球形の滑動パートナー(5,109)を受容する滑動領域(2)として形成された内面を有している、インプラント(1)において、
前記滑動領域(2)は、スピンドルトーラスのスピンドル(105)の長手方向延在長さにおいて半部の部分区域(107)に対応しており、前記滑動領域(2)の高さHGは、挿入しようとする球の直径の20〜80%に相当しておりかつ/または当該インプラントの高さHの50〜95%に相当しており、前記滑動領域(2)の最大直径D1は、挿入しようとする前記球形の滑動パートナー(5,109)の直径よりも大きくなっていることを特徴とする、インプラント(1)。 - 前記滑動パートナーを挿入する、端面(10)を備えた第1の領域を有しており、該第1の領域において前記端面(10)は、内側面の、外側面への移行部を成しており、さらに、前記滑動パートナーの受容部を画定する、前記端面(10)とは反対の側に位置する底面(9)を備えた第2の領域を有しており、さらに、骨において当該インプラントを固定するための粗いかつ/または構造化された表面を備えた外面(3)を有する外側面(6)を有している、請求項1記載のインプラント(1)。
- 当該インプラントはリング状に形成されており、前記滑動領域(2)の最小直径D2は、挿入しようとする前記球形の滑動パートナー(5,109)の直径よりも小さくなっている、請求項1または2記載のインプラント(1)。
- 前記スピンドルトーラスを形成する円の半径r、間隙Cおよび補綴物の前記球の半径rPは、数式Iによれば、
C=(r−rP)*2 (数式I)
という関係にある、請求項1から3までのいずれか1項記載のインプラント。 - 10μm<C<500μmとなっている、請求項1から4までのいずれか1項記載のインプラント。
- リングインサート(1)、好適には前記滑動領域(2)は、頭蓋状に拡張されている、請求項1から5までのいずれか1項記載のインプラント。
- 前記粗い表面は、コーティング(4)である、請求項1から6までのいずれか1項記載のインプラント。
- 前記粗い表面は、多孔質の表面である、請求項1から6までのいずれか1項記載のインプラント。
- 前記多孔質の表面は、50%〜99%、好適には60%〜85%の多孔率を有しており、孔は、100〜1000μmの孔径を有している、請求項1から8までのいずれか1項記載のインプラント。
- 前記多孔質の表面は、多孔質セラミックである、請求項8または9記載のインプラント。
- 前記多孔質セラミックは、多孔質のセラミック発泡体である、請求項10記載のインプラント。
- 当該インプラントは、全体がセラミックである、請求項1から11までのいずれか1項記載のインプラント。
- 当該インプラントは、多孔質のセラミック発泡体から成る、請求項12記載のインプラント。
- 当該インプラントは、頭蓋状に高さを増大させており(201)かつ/または頭蓋状に延長されている(202)、請求項1から13までのいずれか1項記載のインプラント。
- 腰、肩、肘、手指関節または足指関節の内部補綴術における、請求項1から14までのいずれか1項記載のインプラントの使用。
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PCT/EP2019/061518 WO2019215069A1 (de) | 2018-05-07 | 2019-05-06 | Implantat für die gleitpaarung mit einem kugelförmigen gleitpartner |
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KR102230646B1 (ko) * | 2012-07-30 | 2021-03-19 | 세람테크 게엠베하 | 기능성 표면을 갖는 의료 제품들을 제조하기 위한 플라스틱 제제들의 다성분 결합 |
WO2014153530A1 (en) * | 2013-03-21 | 2014-09-25 | Conformis, Inc. | Systems, methods, and devices related to patient-adapted hip joint implants |
BR112018009696A8 (pt) * | 2015-11-19 | 2019-02-26 | Ceram Gmbh | inserto cerâmico anular para a endoprótese |
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2019
- 2019-05-06 JP JP2020562601A patent/JP7379379B2/ja active Active
- 2019-05-06 EP EP19721624.5A patent/EP3790510A1/de active Pending
- 2019-05-06 CN CN201980030887.XA patent/CN112087989B/zh active Active
- 2019-05-06 BR BR112020019206-6A patent/BR112020019206A2/pt not_active Application Discontinuation
- 2019-05-06 KR KR1020207032099A patent/KR20210006903A/ko active Search and Examination
- 2019-05-06 US US17/053,276 patent/US20210282931A1/en not_active Abandoned
- 2019-05-06 WO PCT/EP2019/061518 patent/WO2019215069A1/de unknown
- 2019-05-06 CA CA3093488A patent/CA3093488A1/en active Pending
- 2019-05-06 AU AU2019266468A patent/AU2019266468A1/en not_active Abandoned
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WO2019215069A1 (de) | 2019-11-14 |
CN112087989B (zh) | 2024-01-26 |
AU2019266468A1 (en) | 2020-11-19 |
BR112020019206A2 (pt) | 2021-01-05 |
CN112087989A (zh) | 2020-12-15 |
US20210282931A1 (en) | 2021-09-16 |
JP7379379B2 (ja) | 2023-11-14 |
EP3790510A1 (de) | 2021-03-17 |
CA3093488A1 (en) | 2019-11-14 |
KR20210006903A (ko) | 2021-01-19 |
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