JP4568232B2 - 人工骨頭保持具 - Google Patents
人工骨頭保持具 Download PDFInfo
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- JP4568232B2 JP4568232B2 JP2006001893A JP2006001893A JP4568232B2 JP 4568232 B2 JP4568232 B2 JP 4568232B2 JP 2006001893 A JP2006001893 A JP 2006001893A JP 2006001893 A JP2006001893 A JP 2006001893A JP 4568232 B2 JP4568232 B2 JP 4568232B2
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- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims description 6
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- AXTNPHLCOKUMDY-UHFFFAOYSA-N chromium cobalt Chemical compound [Co][Cr][Co] AXTNPHLCOKUMDY-UHFFFAOYSA-N 0.000 description 1
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- NEFBYIFKOOEVPA-UHFFFAOYSA-K dicalcium phosphate Chemical compound [Ca+2].[Ca+2].[O-]P([O-])([O-])=O NEFBYIFKOOEVPA-UHFFFAOYSA-K 0.000 description 1
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- 238000011540 hip replacement Methods 0.000 description 1
- 210000002758 humerus Anatomy 0.000 description 1
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- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
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- 235000010355 mannitol Nutrition 0.000 description 1
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- 229910000392 octacalcium phosphate Inorganic materials 0.000 description 1
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- 239000003002 pH adjusting agent Substances 0.000 description 1
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- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
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- YIGWVOWKHUSYER-UHFFFAOYSA-F tetracalcium;hydrogen phosphate;diphosphate Chemical compound [Ca+2].[Ca+2].[Ca+2].[Ca+2].OP([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O YIGWVOWKHUSYER-UHFFFAOYSA-F 0.000 description 1
- GBNXLQPMFAUCOI-UHFFFAOYSA-H tetracalcium;oxygen(2-);diphosphate Chemical compound [O-2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GBNXLQPMFAUCOI-UHFFFAOYSA-H 0.000 description 1
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- 235000011178 triphosphate Nutrition 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-N triphosphoric acid Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(O)=O UNXRWKVEANCORM-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- 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
- A61F2/34—Acetabular cups
-
- 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
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)
- Materials For Medical Uses (AREA)
- Prostheses (AREA)
Description
(1) 人工骨頭を摺動可能に保持する受け部を、臼蓋側の骨に固定するのに用いられ、リン酸カルシウム系化合物を主材料として構成される固定用部材と、前記固定用部材により臼蓋側の骨に固定される前記受け部とを有する人工骨頭保持具であって、
前記固定用部材は、前記骨に先端から挿入されるほぼ柱状をなす挿入部と、該挿入部の基端側に設けられ、前記受け部に係合する係合部と、該係合部の基端に先端に向かって凹没する連続する凹曲面とを有し、
前記受け部は、前記人工骨頭が摺接する人工骨頭摺接面を有し、
前記人工骨頭摺接面の曲率半径と、前記凹曲面の曲率半径とがほぼ等しくなっていることにより、前記人工骨頭摺接面と前記凹曲面とをほぼ同一面上に位置させたとき、前記人工骨頭摺接面と前記凹曲面とで連続した曲面が形成されるよう構成したことを特徴とする人工骨頭保持具。
また、人工骨頭を摺動可能に保持する受け部であって、前記固定用部材により臼蓋側の骨に固定される受け部とを有することにより、人工骨頭を長期に亘って安定的に保持可能な人工骨頭保持具を提供することができる。
また、前記受け部は、前記人工骨頭が摺接する人工骨頭摺接面を備え、前記人工骨頭摺接面の曲率半径と、前記凹曲面の曲率半径とがほぼ等しくなっていることにより、凹曲面と人工骨頭摺接面とをほぼ同一平面上に位置させた際に、連続した曲面を形成することができるため、人工関節の円滑な回動が阻害されない。
これにより、作製された受け部の機械的強度を向上させることができる。
なお、以下では、人工股関節置換術を行う場合を一例に説明する。
挿入部2の幅(図1中W1)は、2〜20mm程度であるのが好ましく、5〜12mm程度であるのがより好ましい。
なお、ここでは、前述したような骨セメントを用いてカップ30を手術の際に作製する場合を一例に説明する。
このとき、挿入部2のほぼ全てが骨盤300に挿入され、また、係合部3が骨セメント30bに埋没するようにするのが好ましい。
2 挿入部
21 溝
3 係合部
31 凹曲面
10 人工関節
20 ステム
201 人工骨頭
30 カップ
301 凹部
301a 人工骨頭摺接面
30a 固形状充填物
30b 骨セメント
100 股関節
200 大腿骨
300 骨盤
310 臼蓋
Claims (9)
- 人工骨頭を摺動可能に保持する受け部を、臼蓋側の骨に固定するのに用いられ、リン酸カルシウム系化合物を主材料として構成される固定用部材と、前記固定用部材により臼蓋側の骨に固定される前記受け部とを有する人工骨頭保持具であって、
前記固定用部材は、前記骨に先端から挿入されるほぼ柱状をなす挿入部と、該挿入部の基端側に設けられ、前記受け部に係合する係合部と、該係合部の基端に先端に向かって凹没する連続する凹曲面とを有し、
前記受け部は、前記人工骨頭が摺接する人工骨頭摺接面を有し、
前記人工骨頭摺接面の曲率半径と、前記凹曲面の曲率半径とがほぼ等しくなっていることにより、前記人工骨頭摺接面と前記凹曲面とをほぼ同一面上に位置させたとき、前記人工骨頭摺接面と前記凹曲面とで連続した曲面が形成されるよう構成したことを特徴とする人工骨頭保持具。 - 前記挿入部は、その外周面に凹部が形成されている請求項1に記載の人工骨頭保持具。
- 前記凹部は、前記挿入部の外周に沿って形成された、少なくとも1本の溝で構成されている請求項2に記載の人工骨頭保持具。
- 前記係合部は、その横断面積が基端に向かって漸増している部分を有する請求項1ないし3のいずれかに記載の人工骨頭保持具。
- その空孔率が50%以下である請求項1ないし4のいずれかに記載の人工骨頭保持具。
- 前記受け部は、リン酸カルシウム系化合物を含む材料を成形して得られたものである請求項1ないし5のいずれかに記載の人工骨頭保持具。
- 前記受け部は、粒状または塊状のリン酸カルシウム系化合物を含む請求項6に記載の人工骨頭保持具。
- 前記受け部は、自家骨を粉砕した粉砕物を含む請求項6または7に記載の人工骨頭保持具。
- 前記受け部は、手術の際に作製されるものである請求項6ないし8のいずれかに記載の人工骨頭保持具。
Priority Applications (1)
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JP2006001893A JP4568232B2 (ja) | 2006-01-06 | 2006-01-06 | 人工骨頭保持具 |
Applications Claiming Priority (1)
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JP2006001893A JP4568232B2 (ja) | 2006-01-06 | 2006-01-06 | 人工骨頭保持具 |
Publications (2)
Publication Number | Publication Date |
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JP2007181571A JP2007181571A (ja) | 2007-07-19 |
JP4568232B2 true JP4568232B2 (ja) | 2010-10-27 |
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JP2006001893A Active JP4568232B2 (ja) | 2006-01-06 | 2006-01-06 | 人工骨頭保持具 |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5156017B2 (ja) | 2007-07-11 | 2013-03-06 | 三井化学株式会社 | イソプロピルアルコール生産細菌及びこれを用いたイソプロピルアルコール生産方法 |
EP3695835A1 (en) | 2009-02-03 | 2020-08-19 | Microbion Corporation | Bismuth-thiols as antiseptics for epithelial tissues, acute and chronic wounds, bacterial biofilms and other indications |
US9028878B2 (en) | 2009-02-03 | 2015-05-12 | Microbion Corporation | Bismuth-thiols as antiseptics for biomedical uses, including treatment of bacterial biofilms and other uses |
KR20200015814A (ko) * | 2010-02-03 | 2020-02-12 | 마이크로비온 코포레이션 | 세균 균막의 치료 및 다른 용도를 포함하는, 생의학적 용도를 위한 방부제로서 비스무트-티올 |
KR20210084425A (ko) | 2018-07-31 | 2021-07-07 | 마이크로비온 코포레이션 | 비스무트-티올 조성물 및 사용 방법 |
JP2021533194A (ja) | 2018-07-31 | 2021-12-02 | マイクロビオン コーポレーション | ビスマス・チオール組成物及び創傷を治療する方法 |
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