JP5485435B2 - 骨のための固定装置および椎間インプラント装置を移植する方法 - Google Patents
骨のための固定装置および椎間インプラント装置を移植する方法 Download PDFInfo
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- JP5485435B2 JP5485435B2 JP2013044313A JP2013044313A JP5485435B2 JP 5485435 B2 JP5485435 B2 JP 5485435B2 JP 2013044313 A JP2013044313 A JP 2013044313A JP 2013044313 A JP2013044313 A JP 2013044313A JP 5485435 B2 JP5485435 B2 JP 5485435B2
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- 210000000988 bone and bone Anatomy 0.000 title claims description 84
- 239000007943 implant Substances 0.000 title claims description 12
- 238000000034 method Methods 0.000 title description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 239000000560 biocompatible material Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009528 severe injury Effects 0.000 description 1
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- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
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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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- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
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- A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
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- A61B17/8042—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers the additional component being a cover over the screw head
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- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
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- A61F2/447—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
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- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
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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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- A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
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- 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
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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
- A61F2/02—Prostheses implantable into the body
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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
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- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
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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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- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
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- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Transplantation (AREA)
- Vascular Medicine (AREA)
- Prostheses (AREA)
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Description
スロット14が設けられる。保持スロット14は細長く、ケージ1の横断面Tにおいて延在する。ケージ1の挿入を容易にする保持器具による係合が、当該スロットによって可能になる。この実施形態では、ケージ1は、前方腰椎体間固定用ケージ(ALIFケージ)を示し、たとえば椎間板を置換するために、腰椎の隣接する2つの椎骨の間に前方からケージが導入される。
これにより、頭部ねじ山330の不完全ねじ部における螺旋状突起部37は、ボア200内の雌ねじ220のねじ山入口に対して角度差を有する。その結果、突起部37が、雌ねじ220と円筒形の案内部分520との間の移行部分において、ボア内の対応する端面201に当接する。
骨ねじ、31 コア径、32 雄ねじ部分、34a 逃げ溝、35 移行部分、36 頭部、37 螺旋状突起部、38 螺旋状突起部、39 螺旋状溝、40,42 椎骨体、50 ストップ、52 案内部分、54 ねじ山入口。
Claims (10)
- 骨のための固定装置(100)であって、
1つ以上の骨に固定され、骨ねじ(300)を受け入れるための少なくとも1つのボア(200)を有する部材(400)を備え、前記少なくとも1つのボア(200)は、第1の雌ねじ部分(220)と、前記第1の雌ねじ部分に隣接する円筒状の案内部分(520)とを含み、
前記ボアから骨に挿入するための前記骨ねじは、
骨材と協働するように配置された第1の雄ねじ部分(32)を有する軸部と、
前記ボア(200)に形成されたストップ(50)に係合するように配置されたキャッチ(35)をもたらすために前記軸部よりも直径が大きい頭部(36)と、
前記第1の雌ねじ部分(220)と協働するように配置され、かつ前記ボア(200)に前記骨ねじ(300)をねじ込んだ後、前記キャッチ(35)が前記ストップ(50)と係合すると、前記円筒状の案内部分(520)によって受け入れられる第2の雄ねじ部分(330)とを含む、固定装置(100)。 - 椎間インプラント装置として配置された請求項1に記載の固定装置であって、部材(400)は、上側椎骨体(40)および下側椎骨体(42)のエンドプレートにそれぞれ係合する上面(3a)および下面(3b)と、少なくとも1つのボアが形成される側壁(4)とを含む装置本体を備える、固定装置。
- 前記装置本体は、前記骨ねじの3つに関連付けられる前記ボアの3つを含む、請求項2に記載の固定装置。
- 前記固定装置は椎間インプラント装置であり、
前記3つのボアは、前記装置本体の側壁の一部を構成する前面壁(4)に配置される、請求項3に記載の固定装置。 - 前面壁(4)は、2つの第1の円弧状鉛直内壁(8,9)を介して背面壁(5)にさらに接続される、請求項4に記載の固定装置。
- 側壁の一部を構成する左側壁(6)および右側壁(7)は、2つの第2の円弧状内壁(10,11)を介して背面壁(5)に各々接続される、請求項5に記載の固定装置。
- 前記3つのボアの各々は、前記装置本体の分離内部空間に向かって開口し、内部空間は、隣接する椎骨体のエンドプレートに向かって開口し、かつ、
(a) 2つの第1の円弧状内壁(8,9)同士の間の空間、
(b) 2つの第1の円弧状内壁の一方(8)と、2つの第2の円弧状内壁の左側壁(10)との間の空間、および
(c) 2つの第1の円弧状内壁の他方(9)と2つの第2の円弧状内壁の右側壁(11)との間の空間のうちの1つである、請求項6に記載の固定装置。 - 前記装置本体の上面(3a)および下面(3c)には、骨ねじによって締付られると隣接する椎骨体(40,42)のエンドプレートに埋め込まれる小さな歯(16)が設けられる、請求項2から7のいずれか1項に記載の固定装置。
- 前方腰椎体間固定(ALIF)装置として配置される、請求項1から8のいずれか1項に記載の固定装置。
- 隣接する骨同士を互いに固定するためのプレートアセンブリとして配置され、部材(1)はプレートである、請求項1に記載の固定装置。
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US95220807P | 2007-07-26 | 2007-07-26 | |
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EP07014710A EP2018827B1 (en) | 2007-07-26 | 2007-07-26 | Fixation device for bones |
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JP2008189839A Division JP5221232B2 (ja) | 2007-07-26 | 2008-07-23 | 骨のための固定装置および椎間インプラント装置を移植する方法 |
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JP2013044313A Active JP5485435B2 (ja) | 2007-07-26 | 2013-03-06 | 骨のための固定装置および椎間インプラント装置を移植する方法 |
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EP (2) | EP2340776B1 (ja) |
JP (2) | JP5221232B2 (ja) |
KR (1) | KR101559861B1 (ja) |
CN (2) | CN103860248B (ja) |
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US20130066428A1 (en) | 2013-03-14 |
EP2018827A1 (en) | 2009-01-28 |
EP2340776B1 (en) | 2013-01-30 |
KR101559861B1 (ko) | 2015-10-13 |
JP2009028537A (ja) | 2009-02-12 |
JP5221232B2 (ja) | 2013-06-26 |
EP2018827B1 (en) | 2012-05-02 |
CN101352367B (zh) | 2014-08-27 |
CN103860248A (zh) | 2014-06-18 |
US8790405B2 (en) | 2014-07-29 |
JP2013106979A (ja) | 2013-06-06 |
TW200904380A (en) | 2009-02-01 |
KR20090012109A (ko) | 2009-02-02 |
US20090030520A1 (en) | 2009-01-29 |
EP2340776A1 (en) | 2011-07-06 |
TWI428117B (zh) | 2014-03-01 |
ES2387506T3 (es) | 2012-09-25 |
CN101352367A (zh) | 2009-01-28 |
ES2404883T3 (es) | 2013-05-29 |
CN103860248B (zh) | 2016-03-23 |
US8834570B2 (en) | 2014-09-16 |
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