JP5095395B2 - 溝付き髄内ステム - Google Patents
溝付き髄内ステム Download PDFInfo
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- JP5095395B2 JP5095395B2 JP2007515496A JP2007515496A JP5095395B2 JP 5095395 B2 JP5095395 B2 JP 5095395B2 JP 2007515496 A JP2007515496 A JP 2007515496A JP 2007515496 A JP2007515496 A JP 2007515496A JP 5095395 B2 JP5095395 B2 JP 5095395B2
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- Prior art keywords
- stem
- flutes
- cross
- intramedullary implant
- shape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- 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
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
-
- 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
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
-
- 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
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Description
股関節全置換術中に、外科医は、適切な人口器官の選択、体肢の長さおよび股関節の回転を保証するためにいくつかの計測を行う。切開を行った後、外科医は、関節にアクセスし大腿骨を臼蓋の外へ押し出して関節窩を露出する。悪化した大腿骨の骨頭を取り出し、寛骨臼を洗浄し、次第に大きくなる寸法を有する円形リーマで拡大していくことによって準備する。新しい寛骨臼のシェルを準備しておいた半球の臼蓋内にしっかりと植え込む。インプラントのプラスチック製の内側部分を金属製シェル内に配置し適切な位置に固定する。手術が再置換術の場合、以前のインプラントを取り除き、適宜に骨を準備する。
12 シャフト
14 上側ステム部分
15 スリーブ
16 近位端
18 遠位端
20 縦溝
22 頂部
24 基部
26 テーパ−のついた側面
28 第1の縦溝
28A 縦溝
30 谷部
32 微小リッジ
34 第2の縦溝
34 狭隘化する頂部
34A 第2の縦溝
38 基部
40 テーパーのついた側面
50 外側断面形状
52 内側断面形状
52 コア
60 移行領域
62 縮小部分
62 縮小円筒形部分
64 第1の断面形状
Claims (19)
- 髄内インプラントにおいて、近位端、遠位端、および長手方向の長さを有するシャフトを有するステムであって、前記長手方向の長さの少なくとも一部分に沿って配置された第1の縦溝を備え、前記第1の縦溝が、(i)断面方向に先細の形状、(ii)略平行な側面形状、または(iii)断面方向に先細の形状と略平行な側面形状との組合せの形状、を有し、前記縦溝の少なくとも一部分が、前記近位端から前記遠位端に至る狭隘化頂部を有するステムを特徴とし、
前記長手方向の長さの少なくとも一部分に沿って配置された第2の縦溝をさらに備え、
前記第2の縦溝が最終的に微小リッジになるまで先細になる、髄内インプラント。 - 前記第1の縦溝が、前記シャフトおよび先細のコアに沿った少なくともいくつかの点で略円筒形である外側断面形状を形成することを特徴とする請求項1に記載の髄内インプラント。
- 前記長手方向の長さの少なくとも一部分に沿って配置された第2の縦溝をさらに備え、前記第2の縦溝が、(i)断面方向に先細の形状、(ii)略平行な側面形状、または(iii)断面方向に先細の形状と略平行な側面との組合せの形状、を有するとともに、前記シャフトの前記遠位端に向かって延びるにつれて長手方向の先細形を形成することを特徴とする請求項1または2のいずれか一項に記載の髄内インプラント。
- 前記第2の縦溝の少なくとも一部分が、前記第1の縦溝の少なくとも一部分の間に配置されることを特徴とする請求項1〜3のいずれか一項に記載の髄内インプラント。
- 前記第2の縦溝の高さが前記第1の縦溝より低いことを特徴とする請求項1〜4のいずれか一項に記載の髄内インプラント。
- 前記第2の縦溝が狭隘化する頂部を有することを特徴とする請求項1から5のいずれか一項に記載の髄内インプラント。
- 前記第1の縦溝が、前記ステムの実質的な全長にわたって延び、前記第2の縦溝が、前記ステムの前記遠位端に向かって長手方向に先細になっていることを特徴とする請求項1から6のいずれか一項に記載の髄内インプラント。
- 前記第1および第2の縦溝が、断面方向に先細の形状、略平行な側面形状、あるいは断面方向に先細の形状と略平行な側面との組合せの形状であることを特徴とする、請求項1〜7のいずれか一項に記載の髄内インプラント。
- (a)第1の断面形状部分、移行領域、および第2の断面形状部分を有するステムシャフトであって、前記移行領域が前記第1の断面形状部分と前記第2の断面形状部分とを分離しているステムシャフト、
及び、
(b)モジュール式本体、スリーブ、頚部、またはこれらモジュール式本体、スリーブ、頚部の任意の組合せ、
を備えることを特徴とする請求項1に記載の髄内インプラント。 - 前記移行領域が先細、放物線状、または階段状であることを特徴とする請求項9に記載の髄内インプラント。
- 前記第2の断面形状部分が、縮小円筒形部分を備えることを特徴とする請求項9または10のいずれか一項に記載の髄内インプラント。
- 前記移行領域および前記第2の断面形状部分が両方とも先細になっていることを特徴とする請求項9〜11のいずれか一項に記載の髄内インプラント。
- 前記ステムが、第1の縦溝および第2の縦溝を備えることを特徴とする請求項9〜12のいずれか一項に記載の髄内インプラント。
- 前記ステムがモジュール式であることを特徴とする請求項1〜13のいずれか一項に記載の髄内インプラント。
- 前記ステムが、本体、頚部、およびボール、またはこれら本体、頚部、およびボールの組合せを有する上側ステム部分をさらに備えることを特徴とする請求項14に記載の髄内インプラント。
- 前記ステムが、ボーンオングロースの特徴またはボーンイングロースの特徴を有することを特徴とする請求項1〜15のいずれか一項に記載の髄内インプラント。
- 前記ボーンオングロースの特徴またはボーンイングロースの特徴が、ざらざらの表面、金属製ビーズ、グリットブラストされた表面、多孔質の表面、ヒドロキシアパタイトまたは他の任意のボーンオングロースを促進する物質によるコーティング、またはこれらざらざらの表面、金属製ビーズ、グリットブラストされた表面、多孔質の表面、ヒドロキシアパタイトまたは他の任意のボーンオングロースを促進する物質によるコーティングの組合せを備えることを特徴とする、請求項16に記載の髄内インプラント。
- 前記髄内インプラントは、大腿骨に植え込まれるように適合されていることを特徴とする請求項1〜17のいずれか一項に記載の髄内インプラント。
- 前記インプラントが、1以上のスリットを前記遠位端に有することを特徴とする、請求項1〜18のいずれか一項に記載の髄内インプラント。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57563604P | 2004-05-28 | 2004-05-28 | |
US60/575,636 | 2004-05-28 | ||
US65512905P | 2005-02-22 | 2005-02-22 | |
US60/655,129 | 2005-02-22 | ||
PCT/US2005/019112 WO2005117763A2 (en) | 2004-05-28 | 2005-05-27 | Fluted intramedullary stem |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010250002A Division JP5512491B2 (ja) | 2004-05-28 | 2010-11-08 | 溝付き髄内ステム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008500884A JP2008500884A (ja) | 2008-01-17 |
JP5095395B2 true JP5095395B2 (ja) | 2012-12-12 |
Family
ID=34971141
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007515496A Active JP5095395B2 (ja) | 2004-05-28 | 2005-05-27 | 溝付き髄内ステム |
JP2010250002A Active JP5512491B2 (ja) | 2004-05-28 | 2010-11-08 | 溝付き髄内ステム |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010250002A Active JP5512491B2 (ja) | 2004-05-28 | 2010-11-08 | 溝付き髄内ステム |
Country Status (6)
Country | Link |
---|---|
US (2) | US7575603B2 (ja) |
EP (1) | EP1748746B1 (ja) |
JP (2) | JP5095395B2 (ja) |
AU (1) | AU2005249515B2 (ja) |
CA (1) | CA2567800C (ja) |
WO (1) | WO2005117763A2 (ja) |
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-
2005
- 2005-05-27 EP EP05754414.0A patent/EP1748746B1/en active Active
- 2005-05-27 WO PCT/US2005/019112 patent/WO2005117763A2/en not_active Application Discontinuation
- 2005-05-27 US US11/139,926 patent/US7575603B2/en active Active
- 2005-05-27 AU AU2005249515A patent/AU2005249515B2/en active Active
- 2005-05-27 CA CA2567800A patent/CA2567800C/en not_active Expired - Fee Related
- 2005-05-27 JP JP2007515496A patent/JP5095395B2/ja active Active
-
2009
- 2009-07-09 US US12/499,826 patent/US20090270860A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
CA2567800C (en) | 2013-10-15 |
JP2008500884A (ja) | 2008-01-17 |
US20060004465A1 (en) | 2006-01-05 |
AU2005249515B2 (en) | 2011-11-10 |
JP5512491B2 (ja) | 2014-06-04 |
US20090270860A1 (en) | 2009-10-29 |
CA2567800A1 (en) | 2005-12-15 |
WO2005117763A3 (en) | 2006-03-02 |
US7575603B2 (en) | 2009-08-18 |
JP2011036723A (ja) | 2011-02-24 |
WO2005117763A2 (en) | 2005-12-15 |
EP1748746B1 (en) | 2022-04-27 |
AU2005249515A1 (en) | 2005-12-15 |
EP1748746A2 (en) | 2007-02-07 |
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