JP4425623B2 - モジュラー股関節ステム及びそれを試用するための方法 - Google Patents
モジュラー股関節ステム及びそれを試用するための方法 Download PDFInfo
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- JP4425623B2 JP4425623B2 JP2003422886A JP2003422886A JP4425623B2 JP 4425623 B2 JP4425623 B2 JP 4425623B2 JP 2003422886 A JP2003422886 A JP 2003422886A JP 2003422886 A JP2003422886 A JP 2003422886A JP 4425623 B2 JP4425623 B2 JP 4425623B2
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- component
- proximal
- trial
- distal stem
- stem
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- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/006—Additional features; Implant or prostheses properties not otherwise provided for modular
- A61F2250/0064—Sets comprising a plurality of prosthetic parts of different sizes
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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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0085—Identification means; Administration of patients
- A61F2250/0087—Identification means; Administration of patients colour-coded
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Description
本願は、参照することを以って本明細書の一部とする、本願と同時出願の以下の3件の米国特許出願に関連する。(1)代理人整理番号DEP644、名称:「調節可能な生体力学的型取り/切除器具及び関連方法(ADJUSTABLE BIOMECHANICAL TEMPLATING & RESECTION INSTRUMENT AND ASSOCIATED METHOD)」の米国特許出願。(2)代理人整理番号DEP666、名称:「モジュラーインプラントの整合装置及び方法(ALIGNMENT DEVICE FOR MODULAR IMPLANTS AND METHOD)」の米国特許出願。(3)代理人整理番号DEP725、名称:「モジュラー股関節ステムを試用するための器具及び方法(INSTRUMENT AND ASSOCIATED METHOD OF TRIALING FOR MODULAR HIP STEMS)」の米国特許出願。
(A)
大腿骨構成要素の前傾回転角を決定するためにモジュラー股関節置換システムを試用する方法であって、
先端側ステム構成要素を大腿骨の準備された孔の中に配置するステップであって、前記先端側ステム構成要素が、前記準備した孔の中に実質的に永久的に固定するように構成されており、ステムロケーター構造を画定する基端部分を有している、前記ステップと、
基端側トライアル組立体を前記先端側ステム構成要素の前記基端部分に一時的に取り付けるステップであって、前記トライアル組立体が、前記先端側ステム構成要素のロケーター凹部にアクセスするための貫通孔を有しており、前記基端側トライアル組立体が、前記先端側ステム構成要素に対して、前記先端側ステム構成要素の前記基端部分の長手方向の軸を中心に回動可能な第1の構成要素を有しており、前記第1の構成要素が、前記ステムロケーター構造から独立したトライアルロケーター構造を画定しており、前記第1の構成要素が、トライアルネックとして構成された部分を有する、前記ステップと、
前記基端側トライアル組立体の前記第1の構成要素を、前記大腿骨内において回転位置が維持された状態の前記先端側ステム構成要素に対して回動させて、前記トライアルネック部分を前記大腿骨に対して許容できる前傾回転角に合わせるステップと、
ある器具に前記大腿骨に対する前記トライアルネック部分の前記前傾回転角のリファレンスを付けるステップとを含むことを特徴とする方法。
(1)更に、前記前傾回転角のリファレンスが付けられた前記器具を用いて、前記大腿骨に対する前記前傾回転角で前記関節置換システムの基端側ネック構成要素を配置するステップを含み、前記ネック構成要素が、前記大腿骨内の前記先端側ステム構成要素上に実質的に永久的に取り付けられるように形成されていることを特徴とする実施態様(A)に記載のモジュラー股関節置換システムを試用する方法。
(2)更に、前傾回転角を器具が表すようする前記ステップの前に、前記先端側ステム構成要素に対して前記第1の構成要素を一時的に固定するステップを含むことを特徴とする実施態様(A)に記載のモジュラー股関節置換システムを試用する方法。
(3)前記先端側ステム構成要素を前記準備した孔の中に配置する前記ステップが、前記先端側ステム構成要素を前記孔の中に実質的に永久的に移植することを含むことを特徴とする実施態様(A)に記載のモジュラー股関節置換システムを試用する方法。
(4)更に、基端側トライアル組立体を一時的に取り付ける前記ステップの前に、前記関節置換システムのスリーブ構成要素を前記準備した孔の中に配置して、前記先端側ステム構成要素の前記基端部が前記スリーブ内を貫通するようにするステップを含み、前記スリーブが、前記大腿骨の前記準備した孔の中に実質的に永久的に固定されるように形成されていることを特徴とする実施態様(A)に記載のモジュラー股関節置換システムを試用する方法。
(5)前記基端側トライアル組立体が、前記第1の構成要素に対して回動可能な第2の構成要素を有しており、前記基端側トライアル組立体を一時的に取り付ける前記ステップが、前記スリーブ構成要素に対する前記第2の構成要素の回動を示すことを含むことを特徴とする実施態様(4)に記載のモジュラー股関節置換システムを試用する方法。
モジュラー股関節置換システムのための先端側ステム構成要素であって、
大腿骨の準備した孔の中に固定するように構成された湾曲した骨係合部分と、
前記骨係合部分に連結された基端側部分とを含み、
前記基端側部分が、前記股関節置換システムの基端側モジュラー構成要素と係合するように構成された係合部分を画定しており、更に前記骨係合部分の湾曲した平面に対して所定の角度方向にロケーター構造を画定しており、
前記ロケーター構造が、前記大腿骨の外部からアクセスできるように前記基端部分に配置されており、かつ前記基端側部分が前記大腿骨の前記準備された孔の中に配置されたときに前記骨係合部分の空間的向きを表示するように構成されていることを特徴とする先端側ステム構成要素。
(6)前記ロケーター構造が、前記所定の角度方向に沿って延在する軸に沿って細長いことを特徴とする実施態様(B)に記載の先端側ステム構成要素。
(7)前記ロケーター構造が実質的に楕円形の凹部であることを特徴とする実施態様(6)に記載の先端側ステム構成要素。
(8)前記所定の角度方向が、前記骨係合部分の前記湾曲した平面に対して実質的に直交していることを特徴とする実施態様(B)に記載の先端側ステム構成要素。
(9)前記係合部分がねじを含むことを特徴とする実施態様(B)に記載の先端側ステム構成要素。
(10)前記先端側ステム部分が互いに反対を向いた平坦部を含むことを特徴とする実施態様(B)に記載の先端側ステム構成要素。
(C)
モジュラー股関節置換システムの大腿骨構成要素の前傾回転角を決定するためのトライアルシステムであって、先端側ステム構成要素と、基端側トライアル組立体とを含み、
前記先端側ステム構成要素が、準備した孔の中に実質的に永久的に固定するように構成された骨係合部分、並びに前記モジュラー股関節置換システムの基端側構成要素と係合するように構成された基端側部分を含み、その基端部が、前記骨係合部分が大腿骨の準備した孔の中に配置された時にその空間的方向を表す、前記大腿骨の外側からアクセスすることができるステムロケーター構造を画定しており、
前記基端側トライアル組立体が、第1の構成要素及び第2の構成要素を含み、
前記第1の構成要素が、前記先端側ステム構成要素の前記基端側部分の少なくとも一部を受容し、かつ前記ステムロケーター構造にアクセスできるようにする第1の孔を画定しており、更に前記第1の構成要素が、前記先端側ステム構成要素に対して、前記先端側ステム構成要素の前記基端側部分の長手方向の軸を中心に回動可能であり、更に前記第1の構成要素が、前記ステムロケーター構造から独立した、前記大腿骨の前記準備した孔の外からアクセス可能なトライアルロケーター構造を画定しており、更に前記第1の構成要素が、前記モジュラー股関節置換システムのトライアルネック構成要素として構成された部分を有しており、
前記第2の構成要素が第2の孔を画定しており、その第2の孔が、その中を前記先端側ステム構成要素の前記基端側部分が通って前記先端側ステム構成要素上に前記第2の構成要素が取り付けられるように構成されており、
前記第1の構成要素を前記先端側ステム構成要素に対して回動させた後に、前記第1の構成要素と前記第2の構成要素とを固定するべく、前記第1の構成要素と前記第2の構成要素との噛合が画定されており、
前記ステムロケーター構造と前記トライアルロケーター構造とを外部から見て、前記大腿骨構成要素の前記前傾回転角を示す前記先端側ステム構成要素に対する前記第1の構成要素の相対的な角度を決定できるようになっていることを特徴とするトライアルシステム。
(12)前記噛合が、前記第1の構成要素上に画定された径方向のスプラインと前記第2の構成要素上に画定された径方向のスプラインとの噛合を含むことを特徴とする実施態様(C)に記載のトライアルシステム。
(13)前記先端側ステム構成要素の前記基端側部分及び前記第2の構成要素の前記第2の孔が、前記先端側ステム構成要素と前記基端側トライアル組立体の前記第2の構成要素とが互いに回動しないように構成されていることを特徴とする実施態様(C)に記載のトライアルシステム。
(14)前記先端側ステム構成要素の前記基端側部分が互いに反対側を向いた外側平坦部を含み、前記第2の孔が前記外側平坦部に一致する互いに反対側を向いた内側平坦部を含むことを特徴とする実施態様(13)に記載のトライアルシステム。
(15)前記先端側ステム構成要素の前記骨係合部分が湾曲した平面に沿って湾曲しており、前記ステムロケーター構造が、前記湾曲した平面に対して所定の角度に向いていることを特徴とする実施態様(C)に記載のトライアルシステム。
(17)前記ロケーター構造が、実質的に楕円形の凹部であることを特徴とする実施態様(16)に記載のトライアルシステム。
12 基端側ネック構成要素
14 スリーブ構成要素
16 ヘッド構成要素
18 先端側ステム構成要素
20 基端側ネック構成要素本体
24 基端側ネック構成要素のポスト
26 貫通孔
28 先端側ステム構成要素のポスト
30 ノッチ
32 テーパシャンク
34 ねじ部分
35 ロケーター構造
36 環状ショルダー
38 平坦部
50 トライアル組立体
52 トライアルステム
54 先端側ステム
56 基端側スタッド
60 基端側本体組立体
62 トライアルネック構成要素
64 ナット
73 円柱状本体
74 環状ショルダー
76 ねじ部分
77 平坦部
80 ロケーター凹部
90 テーパ構成要素
94 キー付き構成要素
98 内側平坦部
100 基端側リング
106 キー付き噛み合い構成要素
107,124 噛合面
126 凹部
130 アライメント器具
132 アーム
133 アライメント器具本体
134 アライメント軸
Claims (12)
- モジュラー股関節置換システムのための先端側ステム構成要素であって、
大腿骨の準備した孔の中に固定するように構成された湾曲した骨係合部分と、
一方の端部において前記骨係合部分に連結され、前記股関節置換システムの基端側モジュラー構成要素と係合するように構成された係合部分を画定している基端側部分とを有し、
前記基端側部分は、前記基端側部分の他方の端部に位置し、かつ前記骨係合部分の湾曲した平面に対して直交する軸に沿って細長いロケーター構造を画定しており、
前記ロケーター構造が、前記基端側モジュラー構成要素を前記先端側ステム構成要素に対する適切な角度に配置するために用いるアライメント器具に回転可能に配置されたアライメント軸の先端部分と嵌合するように構成されており、
前記ロケーター構造が、前記大腿骨の外部からアクセスできるように前記基端側部分に配置されていることを特徴とする先端側ステム構成要素。 - 前記ロケーター構造が楕円形の凹部であることを特徴とする請求項1に記載の先端側ステム構成要素。
- 前記骨係合部分がねじを含むことを特徴とする請求項1または2に記載の先端側ステム構成要素。
- 前記先端側ステム構成要素が互いに反対を向いた平坦部を含むことを特徴とする請求項1から3のいずれか一つに記載の先端側ステム構成要素。
- 前記平坦部のそれぞれが、前記骨係合部分の前記湾曲した平面に対して直交する表面を画定していることを特徴とする請求項4に記載の先端側ステム構成要素。
- モジュラー股関節置換システムの大腿骨構成要素の前傾回転角を決定するためのトライアルシステムであって、
(A)先端側ステム構成要素であって、準備した孔の中に永久的に固定するように構成された骨係合部分、並びに前記モジュラー股関節置換システムの基端側構成要素と係合するように構成された基端側部分を含み、前記基端側部分は、前記骨係合部分の湾曲した平面に対して直交する軸に沿って細長いステムロケーター構造を画定しており、前記ステムロケーター構造は、前記モジュラー股関節置換システムの基端側構成要素を前記先端側ステム構成要素に対する適切な角度に配置するために用いるアライメント器具に回転可能に配置されたアライメント軸の先端部分と嵌合するように構成されており、前記ステムロケーター構造は、前記骨係合部分が大腿骨の前記準備した孔の中に配置された時に、前記骨係合部分の空間的方向を表すために、前記大腿骨の外側からアクセスすることができる、先端側ステム構成要素と、
(B)基端側トライアル組立体であって、
(a)前記先端側ステム構成要素の前記基端側部分の少なくとも一部を受容し、かつ前記ステムロケーター構造にアクセスできるようにする第1の孔を画定している第1の構成要素であって、前記第1の構成要素が、前記先端側ステム構成要素に対して、前記先端側ステム構成要素の前記基端側部分の長手方向の軸を中心に回動可能であり、更に前記第1の構成要素が、前記ステムロケーター構造から独立した、前記大腿骨の前記準備した孔の外からアクセス可能なトライアルロケーター構造を画定しており、更に前記第1の構成要素が、前記モジュラー股関節置換システムのトライアルネック構成要素として構成された部分を有している第1の構成要素と、
(b)第2の孔を画定している第2の構成要素であって、前記第2の孔が、前記先端側ステム構成要素の前記基端側部分が通って前記先端側ステム構成要素上に前記第2の構成要素が取り付けられるように構成されている第2の構成要素と、
(c)前記第1の構成要素を前記先端側ステム構成要素に対して回動させた後に、前記第1の構成要素と前記第2の構成要素とを固定するように、前記第1の構成要素と前記第2の構成要素との間で画定された噛合せ係合とを含んでいる基端側トライアル組立体
とを備えていることを特徴とするトライアルシステム。 - 前記噛合せ係合が、前記第1の構成要素上に画定された径方向のスプラインと前記第2の構成要素上に画定された径方向のスプラインとの噛合を含むことを特徴とする請求項6に記載のトライアルシステム。
- 前記先端側ステム構成要素の前記基端側部分及び前記第2の構成要素の前記第2の孔は、前記先端側ステム構成要素と前記基端側トライアル組立体の前記第2の構成要素とが互いに回動しないように構成されていることを特徴とする請求項6または7に記載のトライアルシステム。
- 前記先端側ステム構成要素の前記基端側部分が互いに反対側を向いた外側平坦部を含み、前記第2の孔が前記外側平坦部に一致する互いに反対側を向いた内側平坦部を含むことを特徴とする請求項8に記載のトライアルシステム。
- 前記ステムロケーター構造が、楕円形の凹部であることを特徴とする請求項6から9のいずれか一つに記載のトライアルシステム。
- さらに、前記トライアルネック構成要素と前記先端側ステム構成要素との間の角度関係を調べるためのアライメント器具を有する、請求項6から10のいずれか一つに記載のトライアルシステム。
- 前記アライメント器具は、本体と、前記本体の孔部内に回転可能に配置されたアライメント軸と、前記本体に保持された一対のアームを含んでおり、前記一対のアームは、前記トライアルネック構成要素を間に受容し係合するために、それぞれ別々に動くことが可能であることを特徴とする、請求項11に記載のトライアルシステム。
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-
2002
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2003
- 2003-11-27 AU AU2003266447A patent/AU2003266447B2/en not_active Ceased
- 2003-12-12 EP EP03257815A patent/EP1437103A3/en not_active Withdrawn
- 2003-12-19 JP JP2003422886A patent/JP4425623B2/ja not_active Expired - Fee Related
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2007
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2009
- 2009-05-19 AU AU2009201974A patent/AU2009201974B2/en not_active Ceased
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2010
- 2010-07-26 US US12/843,519 patent/US20100292806A1/en not_active Abandoned
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US7235106B2 (en) | 2007-06-26 |
AU2009201974B2 (en) | 2010-11-18 |
US20100292806A1 (en) | 2010-11-18 |
AU2003266447B2 (en) | 2009-03-26 |
AU2003266447A1 (en) | 2004-07-08 |
EP1437103A2 (en) | 2004-07-14 |
AU2009201974A1 (en) | 2009-06-11 |
JP2004202234A (ja) | 2004-07-22 |
US20070244566A1 (en) | 2007-10-18 |
US20040122525A1 (en) | 2004-06-24 |
US7794503B2 (en) | 2010-09-14 |
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