JP2008283992A - 脊椎インプラント - Google Patents
脊椎インプラント Download PDFInfo
- Publication number
- JP2008283992A JP2008283992A JP2007111229A JP2007111229A JP2008283992A JP 2008283992 A JP2008283992 A JP 2008283992A JP 2007111229 A JP2007111229 A JP 2007111229A JP 2007111229 A JP2007111229 A JP 2007111229A JP 2008283992 A JP2008283992 A JP 2008283992A
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- JP
- Japan
- Prior art keywords
- bone
- chamber
- base member
- interface
- primary
- 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.)
- Granted
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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
- A61F2/44—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
- A61F2/4465—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 having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine
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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
- A61F2/30—Joints
- 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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
- A61B17/84—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
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
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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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- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
- A61F2002/30056—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in radiographic density
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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
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
- A61F2002/302—Three-dimensional shapes toroidal, e.g. rings
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- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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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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- 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
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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
- A61F2002/30576—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
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- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
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Abstract
【解決手段】骨体部を固定及び支持するための例示的なデバイスが、2つの骨体部間の位置にて患者の体内に植え込むためのベース部材を備えている。デバイスのベース部材は、融合材料を受けるための閉鎖チャンバと、隣接する骨体部内に埋め込むことができる骨留め具を受けるための孔とを備えている。デバイスは、ベース部材から延びる突起を更に備え、この突起は、インプラント時に1つまたは複数の骨体部と係合し、インプラント後、ある時間に亘って少なくとも1つの骨体部内へと漸進的に貫入するように、構成される。
【選択図】図1
Description
Claims (58)
- 融合材料を受けるための周囲が囲まれた骨チャンバを形成する一次部材、及び前記一次部材に対してある角度をなして延びる二次部材を有し、2以上の骨体部と相互作用するように構成されたベース部材と、
前記ベース部材の少なくとも1つの表面から延び、少なくとも1つの骨体部内へのインプラントデバイスの制御された沈下をもたらすように構成された複数のインターフェース部材と、
前記ベース部材内に設けられた孔を通して延びる複数の骨留め具とを備えたインプラントデバイス。 - 前記ベース部材の一部が、ラジオルーセント材料を含む請求項1に記載のデバイス。
- 前記ベース部材の一部は、放射線不透過性材料を含む請求項1に記載のデバイス。
- 前記一次部材は、該一次部材を貫通する骨留め具を受けるように構成された少なくとも1つの孔を有し、前記二次部材は、該二次部材を貫通する骨留め具を受けるように構成された少なくとも1つの孔を有する請求項1に記載のデバイス。
- 前記ベース部材に設けられた孔を通して延びる少なくとも1つの骨留め具の運動を制限するための抑制手段を更に備えている請求項1に記載のデバイス。
- 前記一次部材は、取外し可能なチャンバ部材を備え、前記取外し可能なチャンバ部材が、前記融合材料を受けるための周囲が囲まれたチャンバの一部を構成する請求項1に記載のデバイス。
- 前記取外し可能なチャンバ部材は、ラジオルーセント材料を含む請求項6に記載のデバイス。
- 前記一次部材は、第1の脚部及び第2の脚部を更に備え、前記第1及び第2の脚部は、前記取外し可能なチャンバ部材が前記一次部材に取り付けられていないときに、融合材料を受けるための湾曲した開放領域を形成する請求項6に記載のデバイス。
- 前記取外し可能なチャンバ部材が前記一次部材の前記第1の脚部及び前記第2の脚部に連結された際に前記融合部材を受けるための周囲が囲まれたチャンバが形成される請求項8に記載のデバイス。
- 前記取外し可能なチャンバ部材は、前記チャンバ部材の内面から延びる少なくとも1つの内部部材を更に備え、前記少なくとも1つの内部部材は、前記融合部材を受けるための周囲が囲まれたチャンバを少なくとも2つの内部区画に分割するように構成されている請求項6に記載のデバイス。
- 前記少なくとも1つの内部部材が、ラジオルーセント材料を含む請求項10に記載のデバイス。
- 融合部材を受けるための前記周囲が囲まれたチャンバは、少なくとも2つの内部区画を備えている請求項1に記載のデバイス。
- 前記周囲が囲まれたチャンバは、前記内面の一部から延びる内部部材を有するほぼ平坦な内面を備え、前記内部部材は、前記周囲が囲まれたチャンバが2つの内部区画に分割されるように、前記周囲が囲まれたチャンバの前記内面の対向部分に連結されている請求項1に記載のデバイス。
- 前記孔の少なくとも1つは、前記制御された沈下が行なわれる間の、前記スロットに沿ったそれぞれの骨留め具の相対的な変位を可能にするように構成された細長いスロットである請求項1に記載のデバイス。
- 前記複数のインターフェース部材は、前記制御された沈下が行なわれる間に前記骨体部内に貫入する寸法延長部を有し、それぞれの骨留め具は、前記ネジの変位が前記骨体部内への前記複数のインターフェース部材の貫入沈下に一致するように前記スロット内に配置されている請求項14に記載のデバイス。
- 前記孔の少なくとも1つは細長いスロットであり、前記複数のインターフェース部材は、前記制御された沈下が行なわれる間に前記骨体部内に貫入する長さ寸法を有し、前記スロットは、前記制御された沈下が行なわれる間にそれぞれの骨留め具がそれに沿って運動する長さ寸法を有している請求項1に記載のデバイス。
- 前記複数のインターフェース部材の前記寸法延長部が前記骨体部内への貫入を完了するときにそれぞれの骨ネジが前記スロットの端部に到達するように、前記複数のインターフェース部材の前記寸法延長部の寸法が前記スロットの前記長さ寸法に合わせられている請求項16に記載のデバイス。
- 前記制御された沈下が行なわれる間に、少なくとも1つの留め具と前記ベース部材との間で相対的スライド運動が生じる請求項1に記載のデバイス。
- 前記制御された沈下が行なわれる間に、少なくとも1つの留め具と前記ベース部材との間で相対的スライド運動が生じない請求項1に記載のデバイス。
- 前記制御された沈下が行なわれる間に、前記複数の留め具と前記ベース部材との間で相対的スライド運動が生じない請求項1に記載のデバイス。
- 前記制御された沈下は、少なくとも1つのインターフェース部材の前記骨体部内への貫入寸法と関係していて、少なくとも1つの骨留め具は、前記ベース部材に対してある変位量を有し、前記少なくとも1つの骨留め具のベース部材に対する変位量は、零変位量を含み、前記貫入寸法に等しい変位量は含まない範囲にある請求項1に記載のデバイス。
- 少なくとも1つのインターフェース部材は、前記制御された沈下が行なわれている間のある時点で前記骨体部内へ完全に貫入される寸法を有する請求項1に記載のデバイス。
- 前記少なくとも1つのインターフェース部材は、前記制御された沈下の完了時に前記骨体部内に完全に貫入される請求項22に記載のデバイス。
- 前記制御された沈下が行なわれる間に少なくとも1つの骨留め具と前記ベース部材との間で相対的スライド運動が生じ、前記相対的スライド運動は、前記制御された沈下が行なわれている間のある時点で抑止される請求項1に記載のデバイス。
- 前記相対的スライド運動は、前記制御された沈下の完了時に抑止される請求項24に記載のデバイス。
- 前記複数のインターフェース部材は、前記一次部材の頂面及び底面から延びている請求項1に記載のデバイス。
- 前記一次部材の前記頂面から延びる前記インターフェース部材の高さは、前記一次部材の前記底面から延びる前記インターフェース部材とほぼ同じ高さである請求項26に記載のデバイス。
- 前記複数のインターフェース部材は、前記一次部材の頂面から延びている請求項1に記載のデバイス。
- 前記複数のインターフェース部材は、前記一次部材の前記底面から延びている請求項1に記載のデバイス。
- 前記孔の少なくとも1つは、少なくとも1つのインターフェース部材の高さよりも大きい長さを有する細長いスロットである請求項1に記載のデバイス。
- 前記細長いスロットの前記長さは、いかなる単一のインターフェース部材の高さよりも大きい請求項30に記載のデバイス。
- 前記孔の少なくとも1つは、いかなる単一インターフェース部材の高さよりも小さい長さを有する細長いスロットである請求項1に記載のデバイス。
- 前記孔の少なくとも1つは細長いスロットであり、前記制御された沈下が行なわれる間に、少なくとも1つのインターフェース部材がほぼ完全に貫入する前に、それぞれの骨留め具が前記細長いスロットの前記端部のところに達する請求項1に記載のデバイス。
- 前記孔の少なくとも1つは細長いスロットであり、それぞれの骨留め具は、前記細長いスロットの端部に到達し、前記インターフェース部材が前記骨体部内に更に入り込んでいくことが可能になるように前記スロット内でトグル動作を行う請求項1に記載のデバイス。
- 前記ベース部材内の少なくとも1つの孔は、ほぼ凹状の半球形座部を有し、前記孔を通り抜ける前記骨留め具が前記座部上でピボット運動しトグル動作することを可能にする請求項1に記載のデバイス。
- インプラントデバイスであって、
頂面及び底面を有し、融合材料を受けるための周囲が囲まれたチャンバを有するベース部材と、
前記ベース部材内に設けられた孔を通して延びる複数の骨留め具と、
少なくとも1つの骨留め具の運動を制限するための抑制手段と、
前記周囲が囲まれたチャンバの表面から延びる少なくとも1つのインターフェース部材とを備え、
前記インターフェース部材は、骨体部内へのインプラントデバイスの制御された沈下をもたらすように構成されているインプラントデバイス。 - 前記周囲が囲まれたチャンバの前記表面から延びる複数のインターフェース部材を備えている請求項36に記載のデバイス。
- 前記インターフェース部材は、前記周囲が囲まれたチャンバの前記底面から延びている請求項37に記載のデバイス。
- 前記インターフェース部材は、前記周囲が囲まれたチャンバの前記底面から延びている請求項37に記載のデバイス。
- 前記インターフェース部材は、前記周囲が囲まれたチャンバの前記底面及び前記頂面から延びている請求項37に記載のデバイス。
- 前記孔の少なくとも1つは、前記制御された沈下が行なわれる間の前記スロットに沿ったそれぞれの骨留め具の相対変位を可能にするように構成された細長いスロットであり、前記複数のインターフェース部材は、前記制御された沈下が行なわれる間に前記骨体部内に貫入する寸法延長部を有し、それぞれの骨留め具は、前記ネジの変位が前記骨体部内への前記複数のインターフェース部材の貫入沈下と一致するように前記スロット内に配置される請求項37に記載のデバイス。
- 前記制御された沈下は、少なくとも1つのインターフェース部材が前記骨体部内へと貫入する寸法に関係し、少なくとも1つの骨留め具は、前記ベース部材に対してある変位量を有し、前記少なくとも1つの骨留め具のベース部材に対する変位量は、零変位量を含み、前記貫入寸法に等しい変位量は含まない範囲にある請求項37に記載のデバイス。
- 前記周囲が囲まれたチャンバは、前記チャンバを少なくとも2つの内部区画へと分割するように構成された少なくとも1つの内部部材を備えている請求項36に記載のデバイス。
- 前記ベース部材の一部が、ラジオルーセント材料を含む請求項36に記載のデバイス。
- 前記ベース部材の一部が、放射線不透過性材料を含む請求項36に記載のデバイス。
- 第1及び第2の隣接する骨体部と相互作用するように構成されたベース部材と、
前記第1及び第2の骨体部の互いに相手方に向かう方向への動きを伴う制御された沈下を行なわせる手段とを備え、
前記ベース部材は、融合材料を受けるために周囲が囲まれた骨チャンバを形成する一次部材を備え、
前記骨チャンバは、前記第1及び第2の骨体部間での前記融合材料を通した力の伝達を可能にするために、前記第1及び第2の骨体部を前記融合材料に係合させるように構成されているインプラントデバイス。 - 前記制御された沈下を行なわせる手段は、前記ベース部材の少なくとも1つの表面から延びる複数のインターフェース部材を含み、前記インターフェース部材は、少なくとも1つの骨体部内への前記インプラントデバイスの制御された沈下をもたらすように構成されている請求項46に記載のデバイス。
- 前記ベース部材の一部は、ラジオルーセント材料を含む請求項46に記載のデバイス。
- 前記ベース部材の一部は、放射線不透過性材料を含む請求項46に記載のデバイス。
- 前記一次部材は取外し可能なチャンバ部材を備え、前記取外し可能なチャンバ部材は、前記融合材料を受けるための周囲が囲まれたチャンバの一部を形成する請求項46に記載のデバイス。
- 前記取外し可能なチャンバ部材は、ラジオルーセント材料を含む請求項50に記載のデバイス。
- 前記一次部材は、前記取外し可能なチャンバ部材が前記一次部材に取り付けられていないときに、融合材料を受けるための湾曲した開放領域を形成する第1の脚部及び第2の脚部を更に備えている請求項50に記載のデバイス。
- 融合部材を受けるための前記周囲が囲まれたチャンバは、前記取外し可能なチャンバ部材が前記一次部材の前記第1の脚部及び前記第2の脚部に連結される際に形成される請求項52に記載のデバイス。
- 前記取外し可能なチャンバ部材は、前記チャンバ部材の内面から延びる少なくとも1つの内部部材を更に備え、前記少なくとも1つの内部部材は、融合部材を受けるための前記周囲が囲まれたチャンバを少なくとも2つの内部区画に分割するように構成される請求項50に記載のデバイス。
- 融合部材を受けるための前記周囲が囲まれたチャンバは、少なくとも2つの内部区画を備えている請求項46に記載のデバイス。
- 前記周囲が囲まれたチャンバは、前記内面の一部から延びる内部部材を有するほぼ平坦な内面を備え、前記内部部材は、前記周囲が囲まれたチャンバが2つの内部区画に分割されるように、前記周囲が囲まれたチャンバの前記内面の対向部分に連結されている請求項46に記載のデバイス。
- 前記ベース部材内に設けられた孔を通して延びる複数の骨留め具と、少なくとも1つの骨留め具の運動を制御するための抑制手段とを更に備えている請求項46に記載のデバイス。
- 前記抑制手段は、前記骨留め具が抜け出るのを防止するために少なくとも1つの骨留め具の一部を覆って延びるカバーを有している請求項57に記載のデバイス。
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- 2007-04-20 AU AU2007201769A patent/AU2007201769A1/en not_active Abandoned
- 2007-04-20 AT AT07106641T patent/ATE533446T1/de active
- 2007-04-20 JP JP2007111229A patent/JP5166764B2/ja not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
EP1847240B1 (en) | 2011-11-16 |
JP5166764B2 (ja) | 2013-03-21 |
ATE533446T1 (de) | 2011-12-15 |
BRPI0706077A (pt) | 2008-10-28 |
ES2377732T3 (es) | 2012-03-30 |
US9278009B2 (en) | 2016-03-08 |
US20070250167A1 (en) | 2007-10-25 |
EP1847240A1 (en) | 2007-10-24 |
AU2007201769A1 (en) | 2007-11-08 |
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