JP6250152B2 - ステムレス肩インプラント - Google Patents
ステムレス肩インプラント Download PDFInfo
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- JP6250152B2 JP6250152B2 JP2016520397A JP2016520397A JP6250152B2 JP 6250152 B2 JP6250152 B2 JP 6250152B2 JP 2016520397 A JP2016520397 A JP 2016520397A JP 2016520397 A JP2016520397 A JP 2016520397A JP 6250152 B2 JP6250152 B2 JP 6250152B2
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- 239000007943 implant Substances 0.000 title claims description 67
- 210000000988 bone and bone Anatomy 0.000 claims description 39
- 238000003780 insertion Methods 0.000 claims description 20
- 230000037431 insertion Effects 0.000 claims description 20
- 239000000463 material Substances 0.000 description 10
- 210000002758 humerus Anatomy 0.000 description 9
- 241001653121 Glenoides Species 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 210000004095 humeral head Anatomy 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000011882 arthroplasty Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008468 bone growth Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000000513 rotator cuff Anatomy 0.000 description 2
- 210000000323 shoulder joint Anatomy 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000036487 Arthropathies Diseases 0.000 description 1
- 206010065687 Bone loss Diseases 0.000 description 1
- 208000012659 Joint disease Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 206010003246 arthritis Diseases 0.000 description 1
- 239000000560 biocompatible material Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 201000008482 osteoarthritis Diseases 0.000 description 1
- 230000000278 osteoconductive effect Effects 0.000 description 1
- 230000002138 osteoinductive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
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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
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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
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- A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
- A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
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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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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30433—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels, rivets or washers e.g. connecting screws
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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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- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
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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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- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
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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
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/30784—Plurality of holes
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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
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- 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
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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
- A61F2/30767—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
- A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
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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
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- A61F2/40—Joints for shoulders
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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
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- A61F2/40—Joints for shoulders
- A61F2/4014—Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
- A61F2002/4018—Heads or epiphyseal parts of humerus
- A61F2002/4022—Heads or epiphyseal parts of humerus having a concave shape, e.g. hemispherical cups
Description
本発明は、肩の外科的再形成のための肩関節形成術システム、特に、上腕骨インプラントに関する。
肩関節は、例外的な関節可動域を有する球関節である。肩不安定、および関節症または骨折などの肩関節のその他の疾患は、関節の置換を必要とすることがある。
本発明により解決される課題は、肩人工器官の一部として使用され、骨材料の最小限の除去で上腕骨内に確実に固定することができる上腕骨インプラントを提供することである。固定手順は、単純かつ迅速であるべきである。良好な固定は、セメント供給なしで挿入の直後に達成され、これにより、挿入の直後に関節を使用することができる。高い保持力が達せられるべきである。インプラントの正確な配置および方向付けが可能であるべきである。
以下では、図面に関連する実施形態の複数の例に基づいて、一般的な発明の概念を制限することなく、例として発明を説明する。
図1は、上腕骨インプラントの1つの実施の形態を示す側面図である。インプラントは、複数の側壁セグメントを備えるカップ状ボディ100を有する。ロッキングフィン122を有する第1の側壁セグメント104,106,120が設けられている。これらのロッキングフィンは、カップ状ボディを骨内に即座に係止させる。骨材料における半径方向係止により、フィンは、インプラントの比較的高い引出し力を生じる。さらなるセメント結合はもはや不要である。
31 上腕骨頭部の切除された部分
50 リバース肩人工器官の関節窩コンポーネント
100 カップ状ボディ
101〜106 側壁セグメント
107 中央部分
110,111 タブ
120 第1の側壁セグメント
121 間隙
122 ロッキングフィン
130 第2の側壁セグメント
131 凹所
132 穴
140 間隙
150 ねじ山付き穴
200 ロッキングアダプタ
201 ねじ用の穴
202 センタリング手段
203 別のコンポーネントを保持する手段
204 円錐形の輪郭
205 ロッキングリング
210 ねじ用の穴
220 第2のロッキングアダプタ
221 ねじ用の穴
222 テーパしたシャンク
300 インバース人工器官の上腕骨コンポーネント
301 球面
320 球状キャップ
321 円錐形の穴
330 第2のキャップ
340 第3のキャップ
Claims (12)
- 上腕骨インプラントであって、カップ状ボディ(100)と、ロッキングアダプタ(200)とを備え、前記カップ状ボディ(100)は、中央部分(107)と、複数のフレキシブルな第1の側壁セグメント(120)および第2の側壁セグメント(130)とを有し、隣接する側壁セグメントの間には間隙(140)が設けられており、前記ロッキングアダプタ(200)は、該ロッキングアダプタ(200)を前記カップ状ボディ(100)に固定する手段を有する、上腕骨インプラントにおいて、
前記第1の側壁セグメント(120)は、複数のロッキングフィン(122)を有し、前記第2の側壁セグメント(130)は、複数の凹所(131)および穴(132)を有し、前記ロッキングアダプタ(200)は、前記側壁セグメント(120,130)をそれらの最終位置にロックするロッキングリング(205)を有することを特徴とする、上腕骨インプラント。 - 前記少なくとも1つの側壁セグメント(120,130)は、前記カップ状ボディから半径方向に延びる少なくとも1つのタブ(110,111)を有する、請求項1記載の上腕骨インプラント。
- 上腕骨インプラントにおいて、カップ状ボディ(100)と、ロッキングアダプタ(200)とを備え、前記カップ状ボディ(100)は、中央部分(107)と、複数のフレキシブルな側壁セグメント(120,130)とを有し、隣接する前記側壁セグメントの間には間隙(140)が設けられており、少なくとも1つの前記側壁セグメント(120,130)は、挿入整合および耐荷力を高めるために前記カップ状ボディから半径方向に延びる少なくとも1つのタブ(110,111)を有し、
前記ロッキングアダプタ(200)は、該ロッキングアダプタ(200)を前記カップ状ボディ(100)に固定する手段と、前記側壁セグメント(120,130)をそれらの最終位置にロックするロッキングリング(205)とを有することを特徴とする、上腕骨インプラント。 - 複数のロッキングフィン(122)を有する第1の側壁セグメント(120)が設けられている、および/または複数の凹所(131)および穴(132)を有する第2の側壁セグメント(130)が設けられている、請求項3記載の上腕骨インプラント。
- 上腕骨インプラントであって、カップ状ボディ(100)と、ロッキングアダプタ(200)とを備え、前記カップ状ボディ(100)は、ねじ山付きの中央部分(107)と、複数のフレキシブルな側壁セグメント(120,130)とを有し、隣接する側壁セグメントの間には間隙(140)が設けられており、前記ロッキングアダプタ(200)は、該ロッキングアダプタ(200)を前記カップ状ボディ(100)に固定する手段を有する、上腕骨インプラントにおいて、
前記ロッキングアダプタ(200)は、該ロッキングアダプタ(200)をねじによって前記カップ状ボディ(100)に固定する手段と、前記側壁セグメント(120,130)をそれらの最終位置にロックするロッキングリング(205)とを有することを特徴とする、上腕骨インプラント。 - 複数のロッキングフィン(122)を有する第1の側壁セグメント(120)が設けられている、および/または複数の凹所(131)および穴(132)を有する第2の側壁セグメント(130)が設けられている、請求項5記載の上腕骨インプラント。
- 少なくとも1つの前記側壁セグメント(120,130)は、前記カップ状ボディから半径方向に延びる少なくとも1つのタブ(110,111)を有する、請求項5または6記載の上腕骨インプラント。
- 4つの前記第1の側壁セグメント(120)と、2つの前記第2の側壁セグメント(130)とが設けられている、請求項1、2、4、6のいずれか1項記載の上腕骨インプラント。
- 前記ロッキングアダプタ(200)は、インバース人工器官の上腕骨コンポーネント(300)を取り付ける手段または球状のキャップを取り付ける手段を有する、請求項1から8までのいずれか1項記載の上腕骨インプラント。
- 前記ロッキングアダプタ(200)は、別のコンポーネントを取り付けるためのテーパしたシャンク(222)を有する、請求項1から9までのいずれか1項記載の上腕骨インプラント。
- 前記ロッキングアダプタ(200)は、円錐形の外側輪郭(204)を有し、該円錐形の外側輪郭(204)において、前記側壁セグメントは、前記カップ状ボディ(100)への前記ロッキングアダプタ(200)の挿入中に摺動することができ、これにより、骨に向かって外方へ押し付けられる、請求項1から10までのいずれか1項記載の上腕骨インプラント。
- 前記ロッキングアダプタ(200)は、押付力または引張力にかかわらず前記側壁セグメント(101〜106)をその位置に堅固に保持するために、該側壁セグメント(101〜106)の縁部を包囲しているロッキングリング(205)を有する、請求項1から11までのいずれか1項記載の上腕骨インプラント。
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EP13172917.0A EP2815726B1 (en) | 2013-06-19 | 2013-06-19 | Humerus implant |
PCT/EP2014/062492 WO2014202494A1 (en) | 2013-06-19 | 2014-06-16 | Stemless shoulder implant |
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