JP2018521758A - 中空スリーブ補強装置および工具 - Google Patents
中空スリーブ補強装置および工具 Download PDFInfo
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- A61F2/02—Prostheses implantable into the body
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- A61F2/02—Prostheses implantable into the body
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- A61F2002/30738—Sleeves
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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
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- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools for implanting artificial joints
- A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2002/4615—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof of spacers
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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
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- A61F2002/4619—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof for extraction
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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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- A61F2/46—Special tools for implanting artificial joints
- A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2002/4625—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
- A61F2002/4628—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use with linear motion along or rotating motion about an axis transverse to the instrument axis or to the implantation direction, e.g. clamping
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Abstract
Description
本発明による補強装置1の第1実施形態が、図1から図4を参照しながら示されている。この実施形態の補強装置1は、好ましくは、生体適合性の金属材料で作製された脛骨補強具である。材料は、好ましくは、チタン合金、純チタン、コバルトクロム、ステンレス鋼、タンタル、およびジルコニウムを含む群から選択される。さらに好ましくは、材料は純チタン(例えばTiグレード2)である。これは、優れた生体適合性を良好な強度および剛性特性と結び付ける。別の好ましい材料は、チタン合金(例えばTi6A14V)である。この材料は、より入手しやすく、より高い剛性を有する。
Claims (32)
- 補強装置、特に人工膝関節のための脛骨補強具である補強装置であって、
中空スリーブ(10)であって、中空スリーブ(10)の頂部(12)から底部(14)まで中空スリーブ(10)を通り延在するチャネル(11)を囲む中空スリーブ(10)を備え、
中空スリーブ(10)は、内面(14)および外面(15)を有する壁(17)を備え、
中空スリーブ(10)は、少なくとも1つの曲げ継手(3,3’)を備え、曲げ継手(3,3’)は、チャネル(10)を圧縮するように構成されている、
補強装置。 - 曲げ継手(3,3’)は、一体形のヒンジによって形成されており、好ましくは、中空スリーブ(10)において細長い空隙(30)と、空隙(30)にわたる固体材料のストリップ(31)とを備える、請求項1に記載の補強装置。
- ストリップ(31)は、壁(17)に対して斜めになるように配向され、好ましくは、ストリップ(31)の下端(34)が、外面(15)に向かってより接近して位置決めされ、ストリップの上端(32)が、内面(14)に向かって位置決めされている、請求項2に記載の補強装置。
- 曲げ継手(3,3’)は、好ましくはストリップ(31)の先細り幅によって、下部(33)において低下した曲げ剛性を有するように構成されている、請求項2または3に記載の補強装置。
- 2つ以上の曲げ継手(3,3’)が設けられ、好ましくは鏡面対称に配置されている、請求項1に記載の補強装置。
- 曲げ継手(3)は、横側/内側方向における圧縮を可能にするように配置されている、請求項1に記載の補強装置。
- 曲げ継手(3’)は、前方/後方方向における圧縮を可能にするように配置されている、請求項1に記載の補強装置。
- 中空スリーブ(10)は、曲げ継手(3,3’)の曲げ状態において中空スリーブ(10)の外周を調整するように構成された補償要素(4)を備え、補償要素(4)は、好ましくは、摺動関係に配置された2つの重なり合う舌部(41,42)として構成されている、請求項1から7のいずれか一項に記載の補強装置。
- 壁(17)は、骨の内殖を促進するように構成された多孔質材料を少なくとも部分的に備えた、請求項1から8のいずれか一項に記載の補強装置。
- 中空スリーブ(10)は、取扱工具の把持手段用のレセプタクル(16)を備えた、請求項1から9のいずれか一項に記載の補強装置。
- レセプタクル(16)は、把持手段の形状嵌合用の凹部として構成されている、請求項10に記載の補強装置。
- レセプタクル(16)は、アンダーカットを有して構成されている、請求項11に記載の補強装置。
- 位置合わせ穴(21)は、中空スリーブの頂部(12)に設けられ、位置合わせ穴は、治具(8)の位置決め用に構成されている、請求項1から12のいずれか一項に記載の補強装置。
- 照合マーク(22)は、位置合わせ穴(21)に対して決められた空間関係にて設けられ、照合マーク(22)は、治具(8)の適切な位置決めを示すように構成されている、請求項13に記載の補強装置。
- 壁(17)は、固体部分(18)と外面(15)を形成する多孔質部分(18’)とを有するサンドイッチ構造であり、多孔質部分(18’)は、骨材料の内殖のために構成された多孔質材料で形成されている、請求項1から14のいずれか一項に記載の補強装置。
- 固体材料で作製された頂部カバー(2)が設けられ、頂部カバーは、壁(17)の上面全てを本質的に覆うように構成されている、請求項1から15のいずれか一項に記載の補強装置。
- 頂部カバー(2)および壁(17)は、一体要素を形成している、請求項16に記載の補強装置。
- 請求項1から17のいずれか一項に記載の補強装置用の取外工具であって、
中央部分(52)および周辺部分を有する実質的に平坦なフレーム(50)であって、平面を形成しているフレーム(50)と、
周辺部分に分散配置された複数の把持具(6,6’)であって、補強装置を係合するための係合手段を有する把持具(6,6’)と、
フレーム(50)の中央部分(52)に向かって内向きにフレーム(50)の平面に沿って移動可能である少なくとも1つの把持具(6’)と、
少なくとも1つの可動把持具(6’)を作動させる圧縮要素(65)と、
を備えた取外工具。 - 少なくとも3つの把持具(6,6’)が設けられ、好ましくは、可動把持具(6’)の移動範囲は、非作動の外側位置と係合状態の内側位置との間である、請求項18に記載の取外工具。
- 係合手段は、補強装置(1)の外面(15)、特に外面(15)の多孔質部分(18’)へ入り込むように構成された歯(62)である、請求項18または19に記載の取外工具。
- 少なくとも1つの把持具(6)が固定され、可動把持具(6’)は、固定された把持具(6)の方へ動くように構成され、好ましくは、少なくとも2つの可動把持具(6’)が設けられている、請求項18から20のいずれか一項に記載の取外工具。
- 把持具(6,6’)は、フレーム(50)の角部(55)に位置し、角部(55)は、フレームの縁部によって接続されており、縁部は、好ましくは、角部(59)を接続する包絡線(57)に対して内向きにオフセットされている、請求項18から21のいずれか一項に記載の取外工具。
- フレーム(50)は、V字形の固定サブフレーム(58)と、少なくとも1つの可動アウトリガ(59)とを備え、各アウトリガ(59)は、把持具(6,6’)の少なくとも1つを有し、少なくとも1つの可動把持具(6’)は、圧縮要素(65)によって動かされるアウトリガに位置決めされている、請求項22に記載の取外工具。
- サブフレーム(58)に対称的に配置された複数の可動アウトリガ(59)が設けられている、請求項23に記載の取外工具。
- 把持具(6,6’)は、着脱自在に装着されている、請求項18から24のいずれか一項に記載の取外工具。
- 請求項1から17のいずれか一項に記載の補強装置(1)と、取外工具(5)と、治具(8)とを備えたシステムであって、
取外工具(5)は、中央部分(52)および周辺部分を有する実質的に平坦なフレーム(50)と、周辺部分に分散配置された複数の把持具(6,6’)であって、把持具(6,6’)が補強装置(1)を係合するための係合手段を有し、少なくとも1つの把持具(6’)が中心部分(52)に向かって内側に移動可能である、把持具(6,6’)と、少なくとも1つの可動把持具(6’)を作動させる圧縮要素(65’)と、を備え、
治具(8)は、実質的に平坦であり、取外工具(5)を取り付けるための上面(82)を有し、かつ補強装置(1)の頂部用の当接面としての下面(83)を有し、治具(8)は、穿孔するための複数の案内穴(86)を設け、案内穴(86)は、取外工具(5)の把持具(6,6’)と一致するように位置決めされている、
システム。 - 治具(8)は、下面(83)から突出し、補強装置(1)の位置合わせ穴(21)に確実に固定するように、間隔を置いて形成される位置合わせピン(81)を有する、請求項26に記載のシステム。
- 位置合わせ穴(21)は、好ましくは、位置合わせ穴(21)の側壁の円錐形状を有することによって、位置合わせピン(81)用のセンタリング手段として構成されている、請求項26または27に記載のシステム。
- 治具(8)は、補強装置(1)によって形成されたチャネル(11)の外形に類似する大きな中央開口部(84)を有する、請求項26から28のいずれか一項に記載のシステム。
- 補強装置、特に人工膝関節用の脛骨補強装置を取り扱う方法であって、
中空スリーブを有する補強装置であって、中空スリーブは、中空スリーブの頂部から底部まで中空スリーブを通り延在するチャネルを囲み、内面および外面を有する壁を備え、中空スリーブは、少なくとも1つの曲げ継手を備え、曲げ継手は、チャネルを圧縮するように構成されている、補強装置と、
圧縮動作を行うために作動可能な把持具を有する取外工具と、を備え、
補強装置が移植された位置において、補強装置の頂部に取外工具を配置するステップと、
補強装置を取外工具の把持具に係合させるステップと、
取外工具を作動することによって補強装置を圧縮し、補強装置の動きを自由にするステップと、
圧縮方向に対して実質的に垂直な方向に圧縮された補強装置を引っ張ることによって、補強装置を除去するステップと、
を備えた、方法。 - 請求項18から24に記載の取外工具を使用することをさらに備えた、請求項30に記載の方法。
- 請求項1から17に記載の補強装置を使用することをさらに備えた、請求項30または31に記載の方法。
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PCT/EP2016/064728 WO2017005513A2 (en) | 2015-07-09 | 2016-06-24 | Hollow sleeve augment device and tool |
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EP3319558B1 (en) | 2019-10-09 |
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US11918472B2 (en) | 2024-03-05 |
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KR20180028476A (ko) | 2018-03-16 |
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US20190070008A1 (en) | 2019-03-07 |
US20240156603A1 (en) | 2024-05-16 |
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MX382177B (es) | 2025-03-13 |
US20220331113A1 (en) | 2022-10-20 |
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