JP2019134919A - 分離スペーサとプレートおよびそれらの取り付け方法 - Google Patents
分離スペーサとプレートおよびそれらの取り付け方法 Download PDFInfo
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- JP2019134919A JP2019134919A JP2019001659A JP2019001659A JP2019134919A JP 2019134919 A JP2019134919 A JP 2019134919A JP 2019001659 A JP2019001659 A JP 2019001659A JP 2019001659 A JP2019001659 A JP 2019001659A JP 2019134919 A JP2019134919 A JP 2019134919A
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- Prior art keywords
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- plate
- assembly
- rod
- prong
- 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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- 125000006850 spacer group Chemical group 0.000 title claims abstract description 487
- 238000000034 method Methods 0.000 title abstract description 14
- 238000003780 insertion Methods 0.000 claims abstract description 244
- 230000037431 insertion Effects 0.000 claims abstract description 244
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 210000000988 bone and bone Anatomy 0.000 description 26
- 230000008878 coupling Effects 0.000 description 21
- 238000010168 coupling process Methods 0.000 description 21
- 238000005859 coupling reaction Methods 0.000 description 21
- 230000000087 stabilizing effect Effects 0.000 description 21
- 230000007935 neutral effect Effects 0.000 description 20
- 239000000463 material Substances 0.000 description 14
- 238000004873 anchoring Methods 0.000 description 11
- 238000007373 indentation Methods 0.000 description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 230000006641 stabilisation Effects 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 239000004696 Poly ether ether ketone Substances 0.000 description 4
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 4
- 239000007943 implant Substances 0.000 description 4
- 229920002530 polyetherether ketone Polymers 0.000 description 4
- 238000002513 implantation Methods 0.000 description 3
- 239000000560 biocompatible material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 210000002105 tongue Anatomy 0.000 description 2
- 238000012800 visualization Methods 0.000 description 2
- -1 bone Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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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
- A61F2002/448—Joints for the spine, e.g. vertebrae, spinal discs comprising multiple adjacent spinal implants within the same intervertebral space or within the same vertebra, e.g. comprising two adjacent spinal implants
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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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- A61F2002/4625—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 with relative movement between parts of the instrument during use
- A61F2002/4627—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 with relative movement between parts of the instrument during use with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
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Abstract
Description
本出願は、2017年4月5日に出願された米国特許出願第15/479,438号の一部継続出願である、米国特許出願第15/661,027号の一部継続出願であり、その全体がすべての目的のために参照により本明細書に組み入れられる。
本発明は骨固定に関し、さらに具体的には、椎間スペーサおよびプレートを取り付ける方法に関する。
様々なタイプのスペーサが脊椎固定手技に使用され得る。スタンドアロンスペーサは、スペーサがプレートに取り付けられたものである。プレートは、スタンドアロンスペーサを一つまたは複数の隣接する椎骨に固定する、一つまたは複数のスクリューを受容するよう構成される。組み合わされたスペーサ/プレートの構造物は典型的には剛性であり、それによって、埋込部位における患者の柔軟性を低減させる。
Claims (20)
- 長手方向軸に沿って延在するスペーサアセンブリであって、
スペーサであって、
前記長手方向軸の一方の側上で延在する第一横側面と、前記長手方向軸の反対側上で延在する第二横側面とを有し、内側空間が前記第一および第二横側面の間に形成される本体と、
前記第一横側面内に延在するプロングレシーバと、
前記第二横側面内に延在するロッドレシーバと、を有するスペーサと、
プレートであって、
前記第一横側面を係合するよう適合された第一フィンガと、前記第二横側面を係合するよう適合された第二フィンガとを有するプレート本体と、
前記長手方向軸の前記一方の側上に配置されるプロング開口部であって、前記プレート本体を通って延在するプロング開口部と、
前記長手方向軸の前記反対側上で前記プレート本体を通って延在するロッド開口部と、を有するプレートと、
ホルダであって、
近位端と、前記プレートを係合するよう適合された遠位端と、前記近位端と前記遠位端との間に配置された中央部分と、前記近位端と前記遠位端との間に延在するチャネルとを有するホルダ本体と、
前記遠位端から遠位に延在するプロングであって、前記プロング開口部を通り、前記プロングレシーバ内に延在するようサイズ決めされたプロングと、を備えるホルダと、
遠位端を有するロッドであって、前記遠位端が前記ロッドレシーバを解除可能に係合するように、前記ホルダの前記近位端内へ、前記ホルダ本体の前記チャネルを通り、前記プレートの前記ロッド開口部を通り、前記スペーサ内へ挿入されるようサイズ決めされたロッドと、を備えるスペーサアセンブリ。 - 前記チャネルが弓状部分を有する、請求項1に記載のスペーサアセンブリ。
- 前記ホルダの前記近位端が第一幅を有し、前記ホルダの前記中央部分が前記第一幅より小さい第二幅を有する、請求項1に記載のスペーサアセンブリ。
- 前記ロッドレシーバが、前記長手方向軸に対して斜軸に沿って延在する、請求項1に記載のスペーサアセンブリ。
- 前記ロッドが弾性金属から構成される、請求項1に記載のスペーサアセンブリ。
- 前記ホルダが上部分と下部分から構成され、前記下部分が前記上部分に結合される、請求項1に記載のスペーサアセンブリ。
- 前記プロングレシーバが前記内側空間に開いている、請求項1に記載のスペーサアセンブリ。
- 前記ロッド開口部が、前記長手方向軸に対して斜角に沿って延在する、請求項1に記載のスペーサアセンブリ。
- 前記中央部分が、前記長手方向軸の一方の側面において完全に延在する、請求項1に記載のスペーサアセンブリ。
- 前記ロッドレシーバが雌ねじ山付き通路を含む、請求項1に記載のスペーサアセンブリ。
- 前記ロッド遠位端が、前記雌ねじ山付き通路に螺合するようサイズ決めされた雄ねじ山を含む、請求項10に記載のスペーサアセンブリ。
- 前記プロングが前記プロングレシーバに挿入されるとき、および、前記ロッド遠位端が前記ロッドレシーバに挿入されるとき、前記スペーサが前記ホルダに解除可能に接続される、請求項1に記載のスペーサアセンブリ。
- スペーサアセンブリであって、
スペーサであって、
本体であって、
長手方向軸と、
前記長手方向軸の一方の側上で延在する第一横側面と、
前記長手方向軸の反対側上で延在する第二横側面と、を有し、内側空間が前記第一および第二横側面の間に形成される本体と、
前記第一横側面内へ延在するプロングレシーバと、
前記第二横側面内に延在するロッドレシーバであって、前記長手方向軸に対して斜めに延在するロッドレシーバと、を有するスペーサと、
プレートであって、
前記第一横側面を係合するよう適合された第一フィンガと、
前記第二横側面を係合するよう適合された第二フィンガと、
前記長手方向軸の前記一方の側上に配置されるプロング開口部であって、前記プレートが前記スペーサに取り付けられる場合、前記プロング開口部が前記プロングレシーバに整列されるように、前記プレート本体を通って延在するプロング開口部と、
前記プレートが前記スペーサに取り付けられる場合、前記ロッド開口部がロッドレシーバに整列されるように、前記長手方向軸の前記反対側上で前記プレート本体を通って延在し、前記長手方向軸に対して斜めに延在するロッド開口部と、を有するプレートと、を備えるスペーサアセンブリ。 - 前記スペーサが「C」形状の本体を含む、請求項13に記載のスペーサアセンブリ。
- 前記第一横側面が第一刻み目を含み、前記第二横側面が第二刻み目を含み、前記第一フィンガが前記第一刻み目に解除可能に挿入可能であり、前記第二フィンガが前記第二刻み目に解除可能に挿入可能である、請求項13に記載のスペーサアセンブリ。
- 前記ロッドレシーバが雌ねじ山を含む、請求項13に記載のスペーサアセンブリ。
- 前記ロッド開口部にねじ山がない、請求項13に記載のスペーサアセンブリ。
- 前記プロングレシーバおよび前記プロング開口部が、挿入器具のプロングを受けるようサイズ決めされ、前記ロッドレシーバおよび前記ロッド開口部が、前記挿入器具のロッドを受けるようサイズ決めされた、請求項13に記載のスペーサアセンブリ。
- 前記スペーサアセンブリを患者内に挿入するよう適合された挿入器具をさらに備えるスペーサアセンブリであって、前記挿入器具が、
プロングがその遠位端から延在するホルダであって、前記プロングが前記プロング開口部を通り、前記プロングレシーバ内に延在するよう適合され、前記ホルダがそれを通って延在するチャネルをさらに有するホルダと、
前記ロッドが前記ロッド開口部を通って前記ロッドレシーバ内に挿入可能であるように、前記チャネル内に挿入可能なロッドと、を備える、請求項13に記載のスペーサアセンブリ。 - 中央長手方向軸を有するスペーサアセンブリであって、
第一横側面と、第二横側面と、前記第一横側面と前記第二横側面との間に画定される内側空間とを有する、略「C」形状本体を有するスペーサであって、前記第一横側面が、前記内側空間に開いた、ねじ山のないプロングレシーバを有し、前記第二横側面がねじ山付きのロッドレシーバを有し、前記ロッドレシーバが、前記中央長手方向軸に対して斜めの軸に沿って延在するスペーサと、
前記スペーサに解除可能に取り付けられたプレートであって、前記第一横側面を解除可能に係合するよう適合された第一フィンガと、前記第二横側面を解除可能に係合するよう適合された第二フィンガとを有するプレートと、それを通って延在するプロング開口部であって、前記プロングレシーバに整列するよう適合されたプロング開口部と、それを通って延在するロッド開口部であって、前記中央長手方向軸に対して斜めの前記軸に沿って延在し、前記ロッドレシーバに整列するよう適合されたロッド開口部と、とを含むスペーサアセンブリ。
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US20180289496A1 (en) | 2018-10-11 |
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US20190192310A1 (en) | 2019-06-27 |
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