JP2017528204A - 脊椎インプラント及びその使用方法 - Google Patents
脊椎インプラント及びその使用方法 Download PDFInfo
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- JP2017528204A JP2017528204A JP2017509633A JP2017509633A JP2017528204A JP 2017528204 A JP2017528204 A JP 2017528204A JP 2017509633 A JP2017509633 A JP 2017509633A JP 2017509633 A JP2017509633 A JP 2017509633A JP 2017528204 A JP2017528204 A JP 2017528204A
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- 238000000034 method Methods 0.000 title claims description 47
- 239000007943 implant Substances 0.000 title description 5
- 125000006850 spacer group Chemical group 0.000 claims abstract description 112
- 210000000988 bone and bone Anatomy 0.000 claims description 26
- 230000000452 restraining effect Effects 0.000 claims description 23
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- 239000000411 inducer Substances 0.000 claims description 7
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- 238000003780 insertion Methods 0.000 description 5
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- 229910052588 hydroxylapatite Inorganic materials 0.000 description 2
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- 238000009434 installation Methods 0.000 description 2
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
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- 229910000831 Steel Inorganic materials 0.000 description 1
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- 230000003115 biocidal effect Effects 0.000 description 1
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- 238000003384 imaging method Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Images
Classifications
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- A61F2002/30904—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves serrated profile, i.e. saw-toothed
Abstract
Description
Claims (20)
- 脊椎スペーサシステムであって、
脊椎スペーサと、
前記脊椎スペーサに連結されたブラケットと、
第1のプレートと、
前記第1のプレート及び前記ブラケットに連結された第2のプレートと、を備え、前記第2のプレートが前記第1のプレートに対して移動可能であり、前記第2のプレートが、前記脊椎スペーサが通って延びる空間を画定する、前記脊椎スペーサシステム。 - 前記第1及び第2のプレートの互いに対する相対的な移動が前記空間の大きさを変更する、請求項1に記載の脊椎スペーサシステム。
- 前記第1及び第2のプレートのうちの任意の一方が、前記第1及び第2のプレートの互いに対する相対的な位置を拘束するように構成された拘束部材を含む、請求項2に記載の脊椎スペーサシステム。
- 前記拘束部材が回転式フランジである、請求項3に記載の脊椎スペーサシステム。
- 前記拘束部材が、前記第1及び第2のプレートを互いに連結するために前記第1のプレートを通って配設された長尺経路を通って前記第2のプレートから延びている、請求項4に記載の脊椎スペーサシステム。
- 前記第1及び第2のプレートのそれぞれが貫通孔を含む、請求項1に記載の脊椎スペーサシステム。
- さらに1つ以上の締付部材を含み、各締付部材が前記第1または第2のプレートの前記貫通孔を通って椎体内に延びるように構成されている、請求項6に記載の脊椎スペーサシステム。
- 前記第1のプレートの前記貫通孔が隆起環状リップによって第1の側面に画定されている、請求項6に記載の脊椎スペーサシステム。
- 前記第1のプレートの前記貫通孔が非侵襲性リップによって第2の側面に画定されている、請求項8に記載の脊椎スペーサシステム。
- 前記脊椎スペーサが、それぞれ椎体に接触するように構成された上面及び下面を含む、請求項1に記載の脊椎スペーサシステム。
- 前記脊椎スペーサが、骨移植組織または骨成長誘発物質を受容するように構成された空間をさらに画定する、請求項1に記載の脊椎スペーサシステム。
- 前記第1のプレートが第1の段付部を含む、請求項1に記載の脊椎スペーサシステム。
- 前記第2のプレートが、前記第1の段付部に対して摺動するように構成された第2の段付部を含む、請求項12に記載の脊椎スペーサシステム。
- 前記第1の段付部が、前記空間の有効開口寸法を小さくするために、前記第2のプレートによって画定された前記空間に亘って摺動するように構成されている、請求項13に記載の脊椎スペーサシステム。
- 前記第1及び第2の段付部のうちの少なくとも一方が、前記第1の段付部と第2の段付部との間の摩擦を増大するように構成された1つ以上の形状寸法特徴を含む、請求項13に記載の脊椎スペーサシステム。
- 患者を治療する方法であって、
第1のプレートを第1の椎体に取り付けることと、
第2のプレートを第2の椎体に取り付けることであって、前記第1のプレートと前記第2のプレートとが互いに連結される、取り付けることと、
前記第1の椎体と第2の椎体とを引き離すように前記第1及び第2のプレートを互いに離れるように移動させることと、
前記第2のプレートによって画定された空間を通して脊椎インサートを挿入することと、を含む、前記方法。 - 前記脊椎インサートを挿入する前に前記第1及び第2のプレートの相対的な位置を拘束することをさらに含む、請求項16に記載の方法。
- 前記第1のプレートを前記第1の椎体へ取り付けることが、前記第1のプレートの孔を通し、かつ前記第1の椎体を通るように締付部材を打込むことを含む、請求項16に記載の方法。
- 患者を治療する方法であって、
脊椎インサートを2つの隣接椎体間の椎間腔内に挿入することと、
前記隣接椎体を引き離すように前記脊椎インサートを拡張させることと、
前記椎間腔内にスペーサを挿入することと、
前記脊椎インサートの拡張後に前記スペーサを前記脊椎インサートに側方に連結することと、を含む、前記方法。 - 前記脊椎インサート及び前記スペーサの両方が腰外側椎アプローチによって前記椎間腔内に挿入される、請求項19に記載の方法。
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