JP7301111B2 - 多孔質脊椎固定インプラント - Google Patents
多孔質脊椎固定インプラント Download PDFInfo
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- JP7301111B2 JP7301111B2 JP2021183036A JP2021183036A JP7301111B2 JP 7301111 B2 JP7301111 B2 JP 7301111B2 JP 2021183036 A JP2021183036 A JP 2021183036A JP 2021183036 A JP2021183036 A JP 2021183036A JP 7301111 B2 JP7301111 B2 JP 7301111B2
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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
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- Orthopedic Medicine & Surgery (AREA)
- Neurology (AREA)
- Heart & Thoracic Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
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Description
[関連出願の相互参照]
本出願は、(i)2015年12月16日に出願された係属中の米国仮特許出願第62/268,430号;(ii)2016年6月23日に出願された係属中の米国仮特許出願第62/354,077及び(iii)2016年8月26日に出願された係属中の米国仮特許出願第62/379,988号に対する優先権及びその利益を主張する。
いくつかの実施形態において、構造間の重なりは、深さdが微多孔質エンドプレート構造110の厚さの5から95パーセントの間であることを意味する。例えば、微多孔質エンドプレート構造110が約1000μmの厚さをもつ場合、深さdは5μmから950μmの間の範囲であり得る。一つの実施形態において、深さdは、微多孔質構造110の厚さの25から75パーセントの間であり、一つの好ましい実施形態において、深さdは微多孔質エンドプレート構造110の厚さの約50‐66パーセントである。例えば、微多孔質エンドプレート構造110が1000μmの厚さをもつ場合、そのとき、深さdは約500‐660μmとなるであろう。本明細書において説明されるように、微多孔質エンドプレート構造110の厚さは、上部及び下部エンドプレート101,102の異なる領域で変化し得る可能性がある。これらの実施形態において、深さdもまた、様々な厚さの領域において変化し得る。上部エンドプレート101の第1の領域が1000μmの厚さの微多孔質構造110をもつ場合、深さdは約500‐660mmであってもよく、一方、1500μmの微多孔質構造を有する上部エンドプレート101の隣接領域においては、そのとき、深さdは約750‐1,000μmであってもよい。代替的に、深さdは、微多孔質エンドプレート構造110の厚さ又は微多孔質エンドプレート構造110の特定の領域に関係なく一定であってもよい。
包括的であること、又は本開示を開示された正確な形態に限定することは意図されていない。本明細書において説明された実施形態の多くの変形及び変更は、上記の開示に照らして当業者には明らかであろう。本開示の範囲は、添付の特許請求の範囲及びそれらの等価物によってのみ規定されるべきである。
Claims (17)
- 平均孔径を有する複数の不規則な形状の孔を含み、前記孔は複数のストラットによって形成される、上部骨接触面と、
平均孔径を有する複数の不規則な形状の孔を含み、前記孔は複数のストラットによって形成される、下部骨接触面と、
平均孔径を有する複数の不規則な形状の孔を含み、前記孔は複数のストラットによって形成されている、中心体と、を含み、
前記上部及び下部骨接触面の前記平均孔径は、前記中心体の前記平均孔径と異なり、前記上部骨接触面、前記下部骨接触面、及び前記中心体の各々は、弾性率を有し、前記中心体の弾性率は、前記上部及び下部骨接触面の弾性率と異なり、前記上部及び下部骨接触面の弾性率は、外周から内部中心点に向かって減少する、
外科用インプラント。 - 前記上部及び下部骨接触面の前記平均孔径は、前記中心体の前記平均孔径よりも小さい、請求項1に記載の外科用インプラント。
- 前記上部骨接触面及び前記下部骨接触面の前記平均孔径は、100マイクロメートル~1,500マイクロメートルの間である、請求項1に記載の外科用インプラント。
- 前記上部及び下部骨接触面の前記平均孔径は、約500マイクロメートルである、請求項3に記載の外科用インプラント。
- 弾性係数の変化が前記外周から前記内部中心点に向かって段階的である、請求項1に記載の外科用インプラント。
- 固定穴を更に含む、請求項1に記載の外科用インプラント。
- インプラントフレームを更に含む、請求項1に記載の外科用インプラント。
- 1つ又はそれよりも多くの放射線不透過性マーカを更に含む、請求項1に記載の外科用インプラント。
- 当該外科用インプラントの前記下部骨接触面に対する当該外科用インプラントの前記上部骨接触面の角度が0度~40度である、請求項1に記載の外科用インプラント。
- 上部骨接触面と、
下部骨接触面と、
前記上部骨接触面と前記下部骨接触面との間に位置する中心体と、を含み、
前記上部骨接触面及び前記下部骨接触面は、外周から内部中心点に向かって減少する弾性率を有し、前記上部骨接触面は、第1の平均孔径を有する第1の複数の不規則な形状の孔を含み、該第1の複数の不規則な形状の孔は、複数のストラットによって形成され、前記下部骨接触面は、第2の平均孔径を有する第2の複数の不規則な形状の孔を含み、該第2の複数の不規則な形状の孔は、複数のストラットによって形成され、前記中心体は、第3の平均孔径を有する第3の複数の不規則な形状の孔を含み、該第3の複数の不規則な形状の孔は、複数のストラットによって形成され、前記上部及び下部骨接触面の前記平均孔径は、前記中心体の前記平均孔径と異なる、
外科用インプラント。 - 前記第1及び第2の平均孔径は、前記第3の平均孔径よりも小さい、請求項10に記載の外科用インプラント。
- 前記上部及び下部骨接触面の前記第1及び第2の平均孔径は、100マイクロメートル~1,500マイクロメートルの間である、請求項10に記載の外科用インプラント。
- 前記第1及び第2の平均孔径は、約500マイクロメートルである、請求項12に記載の外科用インプラント。
- 固定穴を更に含む、請求項10に記載の外科用インプラント。
- インプラントフレームを更に含む、請求項10に記載の外科用インプラント。
- 1つ又はそれよりも多くの放射線不透過性マーカを更に含む、請求項10に記載の外科用インプラント。
- 当該外科用インプラントの前記下部骨接触面に対する当該外科用インプラントの前記上部骨接触面の角度が0度~40度である、請求項10に記載の外科用インプラント。
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US62/379,988 | 2016-08-26 | ||
PCT/US2016/067371 WO2017106780A1 (en) | 2015-12-16 | 2016-12-16 | Porous spinal fusion implant |
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US20190133783A1 (en) | 2019-05-09 |
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AU2016369593B2 (en) | 2021-04-01 |
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BR112018012191A2 (pt) | 2018-11-27 |
US20200261243A1 (en) | 2020-08-20 |
AU2016369593A1 (en) | 2018-07-05 |
JP2023112051A (ja) | 2023-08-10 |
CN108601662B (zh) | 2021-01-12 |
BR112018012191B1 (pt) | 2022-12-13 |
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