JP2007244878A - 脊椎用インプラントデバイス - Google Patents
脊椎用インプラントデバイス Download PDFInfo
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- JP2007244878A JP2007244878A JP2007068632A JP2007068632A JP2007244878A JP 2007244878 A JP2007244878 A JP 2007244878A JP 2007068632 A JP2007068632 A JP 2007068632A JP 2007068632 A JP2007068632 A JP 2007068632A JP 2007244878 A JP2007244878 A JP 2007244878A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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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- 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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- A61F2/44—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
- A61F2/446—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 elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (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)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
【解決手段】インプラントデバイスは、2つの椎骨間に植え込むためのベース部材と、該ベース部材から突出した1つもしくは複数の突起からなるインターフェース部材とを含む。突起は、植え込まれると椎骨の1つに係合し、植え込まれた後の一定の期間に亘って徐々に椎骨に貫入していくように設けられる。インプラントデバイスは、椎骨の側部への該デバイスの固定に対応するために、横方向取付部を含む。インプラントデバイスは、椎間板腔の側面を露出させる後外側方向または横方向開口部を通して隣接する椎骨間に挿入される。
【選択図】 図1
Description
Claims (47)
- 脊椎用のインプラントデバイスであって、
2つの隣接する椎骨と相互作用するように構成されて、少なくとも一方の椎骨の側部への前記デバイスの固定に適合するための横方向取付部と、前記横方向取付部の側面から延びて前記椎骨の間を延びるように構成された長い側部とを備えたベース部材と、
前記長い側部の少なくとも1つの表面から延びていて、前記少なくとも一方の椎骨内への前記インプラントデバイスの制御された沈み込みを生じさせるように構成された少なくとも1つのインターフェース部材と、
前記ベース部材の前記横方向取付部に設けられた複数の孔を通して延びて、少なくとも一方の椎骨の前記側部に貫入する複数の骨留め具と、
を備えたインプラントデバイス。 - 前記椎骨の側部を露出させる後外側方向開口部を通して2つの椎骨間に位置決めされる請求項1に記載のインプラントデバイス。
- 椎骨の側部を露出させる横方向開口部を通して2つの椎骨間に位置決めされる請求項1に記載のインプラントデバイス。
- 前記長い側部の少なくとも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、前記複数のインターフェース部材の少なくとも1つが、脊椎が伸びる方向に整列させられる請求項1に記載のインプラントデバイス。
- 前記複数のインターフェース部材は、前記長い側部の底面から延びている請求項4に記載のインプラントデバイス。
- 前記複数のインターフェース部材は、前記長い側部の上面から延びている請求項4に記載のインプラントデバイス。
- 前記複数のインターフェース部材は、前記長い側部の1つより多くの表面から延びている請求項4に記載のインプラントデバイス。
- 前記制御された沈み込みが行なわれる間、前記複数の留め具と前記ベース部材との間に相対的なスライド運動が生じないように構成されている請求項1に記載のインプラントデバイス。
- 前記複数の孔の少なくとも1つは、ある長さを有する長いスロットであり、前記スロットは、前記制御された沈み込みが行なわれる間、前記スロット内を延びる各骨留め具の前記スロットの前記長さ方向に沿った相対的変位運動を許容するように構成されている請求項1に記載のインプラントデバイス。
- 前記横方向取付部は、丸孔の形をした少なくとも1つの孔を更に備え、前記丸孔は、その中を延びる骨留め具を受け入れるように構成されている請求項9に記載のインプラントデバイス。
- 前記長いスロットは、前記少なくとも1つのインターフェース部材の高さよりも長い長さを有している請求項9に記載のインプラントデバイス。
- 前記長いスロットは、前記少なくとも1つのインターフェース部材の高さよりも短い長さを有している請求項9に記載のインプラントデバイス。
- 前記制御された沈み込みが行なわれる間、少なくとも1つの留め具と前記ベース部材との間に相対的な変位運動が生じるように構成されている請求項9に記載のインプラントデバイス。
- 少なくとも1つのインターフェース部材は、前記制御された沈み込みが行なわれる間に少なくとも1つの椎骨にほぼ完全に貫入し、かつ前記骨留め具が前記長いスロットの端部に位置しないように構成されている請求項9に記載のインプラントデバイス。
- 制御された沈み込み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椎骨にほぼ完全に貫入される前に、前記骨留め具が前記長いスロットの端部に達するように構成されている請求項9に記載のインプラントデバイス。
- 前記横方向取付部の孔の中を延びる少なくとも1つの骨留め具の運動を制限する抑制手段を更に備えている請求項1に記載のインプラントデバイス。
- 前記抑制手段は、前記骨留め具の戻りを防ぐために少なくとも1つの骨留め具の一部の上を覆うようにして延びるカバーを備えている請求項16に記載のインプラントデバイス。
- 前記抑制手段は、固定具によって前記横方向取付部にしっかりと固定されて、前記骨留め具の戻りを抑制する抑制プレートを備え、前記抑制プレートは、少なくとも1つの骨留め具が、該少なくとも1つの骨留め具を貫通して延びている孔の部分でスライド運動及びトグル動作を行なうのを許容するように構成されている請求項16に記載のインプラントデバイス。
- 前記長い側部が湾曲させられていて、椎骨に対して後方に向いた面と前方に向いた面とを有している請求項1に記載のインプラントデバイス。
- 前記長い側部の前記後方に向いた面が凹状であり、前記長い側部の前記前方に向いた面が凸状である、請求項19に記載のインプラントデバイス。
- 前記横方向取付部は前記長い側部の一端に連続している請求項19に記載のインプラントデバイス。
- 前記ベース部材は、前記長い側部に連続している後背部を更に備えている請求項19に記載のインプラントデバイス。
- 前記長い側部は、融合材料を受け入れる、周囲が囲まれたチャンバを形成しており、前記横方向取付部は、前記周囲が囲まれたチャンバの一部をなしている請求項1に記載のインプラントデバイス。
- 前記周囲が囲まれたチャンバが少なくとも1つの内部区画を備えている請求項21に記載のインプラントデバイス。
- 前記周囲が囲まれたチャンバは、前記長い側部の内側の面から延びる少なくとも1つの内部部材を備え、前記少なくとも1つの内部部材は、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ている請求項21に記載のインプラントデバイス。
- 前記周囲が囲まれたチャンバはほぼ平坦な内側の面を備え、前記内側の面はその一部から延びる内部部材を有し、前記内部部材は前記チャンバが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側の面の対向する部分に連結されている請求項21に記載のインプラントデバイス。
- 前記周囲が囲まれたチャンバの少なくとも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、前記複数のインターフェース部材の少なくとも1つは脊椎が伸びる方向に整列させられている請求項21に記載のインプラントデバイス。
- 前記周囲が囲まれたチャンバは、上面と底面とを有している請求項25に記載のインプラントデバイス。
- 前記横方向取付部の表面から前記横方向取付部に対してある角度をなして延びる底部取付け部材を更に備えている請求項1に記載のインプラントデバイス。
- 前記底部取付け部材は、その内部を貫通させて1つの骨留め具を受け入れるように構成された少なくとも1つの孔を備えている請求項29に記載のインプラントデバイス。
- 前記横方向取付部の少なくとも1つの孔は、他の孔に対して角度をもった丸孔の形をしている請求項30に記載のインプラントデバイス。
- 前記底部取付け部材の少なくとも1つの孔は長いスロットであり、前記横方向取付部の少なくとも1つの孔が丸孔である請求項31に記載のインプラントデバイス。
- 脊椎用のインプラントデバイスであって、
少なくとも1つの椎骨の側部への前記デバイスの固定に適合するための横方向取付部と、前記横方向取付部の側面から前記少なくとも1つの椎骨へ向かう方向に延びる長い側部とを有して、前記長い側部が前記少なくとも1つの椎骨と相互作用するベース部材と、
前記長い側部の少なくとも1つの表面から延びていて、前記少なくとも1つの椎骨内への前記インプラントデバイスの制御された沈み込みを生じさせるように構成された少なくとも1つのインターフェース部材と、
前記ベース部材の前記横方向取付部に設けられた複数の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抑制する抑制手段と、
を備えたインプラントデバイス。 - 前記長い側部は、2つの椎骨間を延びている請求項33に記載のインプラントデバイス。
- 前記長い側部の少なくとも1つの表面から延びる複数のインターフェース部材を備え、前記複数のインターフェース部材の少なくとも1つは、脊椎が伸びる方向に整列させられている請求項34に記載のインプラントデバイス。
- 前記長い側部が上面と底面とを有している請求項34に記載のインプラントデバイス。
- 前記横方向取付部は、前記長い側部の前記上面の上方に延びる部分と、前記長い側部の前記底面の下方に延びる部分とを有している請求項36に記載のインプラントデバイス。
- 前記長い側部の前記上面の上方に延びる部分は、少なくとも1つの孔を備え、前記長い側部の前記底面の下方に延びる部分は、少なくとも1つの孔を備えている請求項37に記載のインプラントデバイス。
- 前記制御された沈み込みが行なわれる間、前記複数の留め具と前記ベース部材との間に相対的スライド運動が生じないように構成されている請求項38に記載のインプラントデバイス。
- 前記長い側部の前記上面の上方に延びる部分の少なくとも1つの孔は、丸孔の形をしている請求項38に記載のインプラントデバイス。
- 前記長い側部の前記底面の下方に延びる部分の少なくとも1つの孔は、長いスロットの形をしている請求項38に記載のインプラントデバイス。
- 前記長いスロットがある長さを有し、前記長いスロットは、前記制御された沈み込みが行なわれる間、前記スロット内を延びる各骨留め具が前記スロットの長さ方向に沿って相対移動するのを許容するように構成されている請求項41に記載のインプラントデバイス。
- 前記長い側部は、融合材料を受け入れる周囲が囲まれたチャンバを形成しており、前記横方向取付部は、前記周囲が囲まれたチャンバの一部をなしている請求項34に記載のインプラントデバイス。
- 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43に記載のインプラントデバイス。
- 前記周囲が囲まれたチャンバは、前記長い側部の内側の面から延びる少なくとも1つの内部部材を備え、前記少なくとも1つの内部部材は、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ている請求項43に記載のインプラントデバイス。
- 椎骨の側部を露出させる後外側方向開口部を通して2つの椎骨間に位置決めされる請求項33に記載のインプラントデバイス。
- 椎骨の側部を露出させる横方向開口部を通して2つの椎骨間に位置決めされる請求項33に記載のインプラントデバイス。
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Also Published As
Publication number | Publication date |
---|---|
BRPI0702621A (pt) | 2007-12-18 |
US20070233253A1 (en) | 2007-10-04 |
US8613772B2 (en) | 2013-12-24 |
AU2007201117A1 (en) | 2007-10-04 |
EP1834608A3 (en) | 2007-10-10 |
EP1834608A2 (en) | 2007-09-19 |
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