JP7170126B2 - 人工膝関節 - Google Patents
人工膝関節 Download PDFInfo
- Publication number
- JP7170126B2 JP7170126B2 JP2021513506A JP2021513506A JP7170126B2 JP 7170126 B2 JP7170126 B2 JP 7170126B2 JP 2021513506 A JP2021513506 A JP 2021513506A JP 2021513506 A JP2021513506 A JP 2021513506A JP 7170126 B2 JP7170126 B2 JP 7170126B2
- Authority
- JP
- Japan
- Prior art keywords
- medial
- lateral
- condyle
- sliding surface
- tibial component
- 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
-
- 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
- A61F2/38—Joints for elbows or knees
-
- 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
- A61F2/38—Joints for elbows or knees
- A61F2/3859—Femoral components
-
- 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
- A61F2/38—Joints for elbows or knees
- A61F2/389—Tibial components
-
- 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
-
- 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
- A61F2002/30884—Fins or wings, e.g. longitudinal wings for preventing rotation within the bone cavity
Description
本発明は上述した実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲で種々の変形が可能である。
2 大腿骨コンポーネント
20 中間点
22 内顆
22a 最下点
23 外顆
23a 最下点
3 脛骨コンポーネント
30 中心
51 内側摺動面
52 外側摺動面
54 傾斜面
Claims (4)
- 内顆および外顆を含む大腿骨コンポーネントと、
前記内顆を受ける内側摺動面および前記外顆を受ける外側摺動面を有し、前記内側摺動面および前記外側摺動面の内外方向の曲率半径が前後方向の所定範囲において前方から後方に向かって大きくなる脛骨コンポーネントと、を備え、
内外方向において、伸展位での前記内顆の最下点と前記外顆の最下点との中間点が前記脛骨コンポーネントの中心に対して前記脛骨コンポーネントの幅の2~10%だけ内方に位置するように、前記内側摺動面および前記外側摺動面が内方に寄せられている、人工膝関節。 - 前後方向において、伸展位での前記内顆と前記内側摺動面との接触位置は、前記脛骨コンポーネントの後端から前記脛骨コンポーネントの長さの40~65%の範囲内にある、請求項1に記載の人工膝関節。
- 前記脛骨コンポーネントの上面における前記大腿骨コンポーネントよりも外方に張り出す端部には、外方に向かって下向きに傾斜する傾斜面が形成されている、請求項1または2に記載の人工膝関節。
- 内外方向における前記内側摺動面の最下点を前後方向に連ねた最下点ラインが前方に向かって内向きに湾曲する、請求項1~3の何れか一項に記載の人工膝関節。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019075260 | 2019-04-11 | ||
JP2019075260 | 2019-04-11 | ||
PCT/JP2020/006157 WO2020208942A1 (ja) | 2019-04-11 | 2020-02-18 | 人工膝関節 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2020208942A1 JPWO2020208942A1 (ja) | 2020-10-15 |
JP7170126B2 true JP7170126B2 (ja) | 2022-11-11 |
Family
ID=72751794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021513506A Active JP7170126B2 (ja) | 2019-04-11 | 2020-02-18 | 人工膝関節 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220160513A1 (ja) |
EP (1) | EP3954335B1 (ja) |
JP (1) | JP7170126B2 (ja) |
CN (1) | CN113631123A (ja) |
WO (1) | WO2020208942A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4045194B2 (ja) | 2003-02-25 | 2008-02-13 | 京セラ株式会社 | 人工膝関節 |
US7413577B1 (en) | 2005-09-22 | 2008-08-19 | Howmedica Osteonics Corp. | Total stabilized knee prosthesis with constraint |
US20140277537A1 (en) | 2013-03-14 | 2014-09-18 | Dwight Todd | Prosthetic knee implant |
JP5798190B2 (ja) | 2010-07-24 | 2015-10-21 | ジンマー,インコーポレイティド | 人工膝用の非対称な脛骨部品 |
US20180206997A1 (en) | 2015-07-20 | 2018-07-26 | Corentec Co., Ltd. | Asymmetric artificial knee joint |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3781186B2 (ja) | 2002-02-13 | 2006-05-31 | 徹 勝呂 | 人工膝関節 |
DE102005009496B4 (de) * | 2005-03-02 | 2012-12-20 | Mathys Ag Bettlach | Kniegelenk-Endoprothese mit Zwischenelement mit unterschiedlich gestalteten Gleitflächen |
CA2769376C (en) * | 2009-08-10 | 2016-02-23 | Urs Wyss | Knee prosthesis |
JP5826025B2 (ja) * | 2011-12-28 | 2015-12-02 | 京セラメディカル株式会社 | 人工膝関節インプラント |
-
2020
- 2020-02-18 EP EP20787738.2A patent/EP3954335B1/en active Active
- 2020-02-18 WO PCT/JP2020/006157 patent/WO2020208942A1/ja unknown
- 2020-02-18 JP JP2021513506A patent/JP7170126B2/ja active Active
- 2020-02-18 US US17/602,648 patent/US20220160513A1/en active Pending
- 2020-02-18 CN CN202080027827.5A patent/CN113631123A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4045194B2 (ja) | 2003-02-25 | 2008-02-13 | 京セラ株式会社 | 人工膝関節 |
US7413577B1 (en) | 2005-09-22 | 2008-08-19 | Howmedica Osteonics Corp. | Total stabilized knee prosthesis with constraint |
JP5798190B2 (ja) | 2010-07-24 | 2015-10-21 | ジンマー,インコーポレイティド | 人工膝用の非対称な脛骨部品 |
US20140277537A1 (en) | 2013-03-14 | 2014-09-18 | Dwight Todd | Prosthetic knee implant |
US20180206997A1 (en) | 2015-07-20 | 2018-07-26 | Corentec Co., Ltd. | Asymmetric artificial knee joint |
Also Published As
Publication number | Publication date |
---|---|
US20220160513A1 (en) | 2022-05-26 |
EP3954335A4 (en) | 2023-01-04 |
EP3954335B1 (en) | 2023-12-13 |
JPWO2020208942A1 (ja) | 2020-10-15 |
WO2020208942A1 (ja) | 2020-10-15 |
CN113631123A (zh) | 2021-11-09 |
EP3954335A1 (en) | 2022-02-16 |
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