JPH0822294B2 - 脊髄インプラント - Google Patents
脊髄インプラントInfo
- Publication number
- JPH0822294B2 JPH0822294B2 JP63195921A JP19592188A JPH0822294B2 JP H0822294 B2 JPH0822294 B2 JP H0822294B2 JP 63195921 A JP63195921 A JP 63195921A JP 19592188 A JP19592188 A JP 19592188A JP H0822294 B2 JPH0822294 B2 JP H0822294B2
- Authority
- JP
- Japan
- Prior art keywords
- horseshoe
- spinal implant
- holes
- flat surface
- spinal
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
-
- 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
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
-
- 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
-
- 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
- A61F2/30721—Accessories
- A61F2/30724—Spacers for centering an implant in a bone cavity, e.g. in a cement-receiving cavity
-
- 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
- A61F2/3094—Designing or manufacturing processes
- A61F2/30965—Reinforcing the prosthesis by embedding particles or fibres during moulding or dipping
-
- 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
- A61F2/28—Bones
- A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30131—Rounded shapes, e.g. with rounded corners horseshoe- or crescent- or C-shaped or U-shaped
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/30784—Plurality of holes
- A61F2002/30787—Plurality of holes inclined obliquely with respect to each other
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0013—Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
Landscapes
- 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)
- Steroid Compounds (AREA)
- Surgical Instruments (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
【発明の詳細な説明】 (産業上の利用分野) この発明は、前面側脊椎固定を補強する前面固定機と
して使用するための脊椎インプラントに関する。
して使用するための脊椎インプラントに関する。
(従来の技術及び発明が解決しようとする課題) 一般に単一レベルの前面側脊椎固定は十分であるが、
もし臨床に必要とされるならば、1つより多くのインプ
ラント及び融合が種々のレベルで使用される。
もし臨床に必要とされるならば、1つより多くのインプ
ラント及び融合が種々のレベルで使用される。
単一レベルの前面側脊椎固定は、一定の脊椎問題の処
置に関するよく確立された外科技術である。揺れと回転
に対する内部固定をもたない骨移植片との融合及び円板
の切除は、移植片内の陥没(sinking in of the graf
t)または移植片の追出し(dislodgement of the graf
t)、及び推骨との非癒着(non−union)をよくおこ
す。
置に関するよく確立された外科技術である。揺れと回転
に対する内部固定をもたない骨移植片との融合及び円板
の切除は、移植片内の陥没(sinking in of the graf
t)または移植片の追出し(dislodgement of the graf
t)、及び推骨との非癒着(non−union)をよくおこ
す。
この発明の目的は、前部推骨柱の境界部の内部に十分
に含まれることのでき、構造的に最も強い部分であるそ
の両端部の周囲の表面に隣接する推骨の間でスペーサー
として機能するインプラントを提供することである。
に含まれることのでき、構造的に最も強い部分であるそ
の両端部の周囲の表面に隣接する推骨の間でスペーサー
として機能するインプラントを提供することである。
(課題を解決するための手段及び作用) この発明の1つの実施例によると、脊髄インプラント
は馬蹄形状の両端部に向かって収束する(converging)
上部平面及び下部平面を有し、生体に適合できる材料で
構成された略馬蹄形状の剛体(rigid)を備え、前記各
平面から馬蹄体の外側曲面に現われる少なくとも1つの
孔を備えている。
は馬蹄形状の両端部に向かって収束する(converging)
上部平面及び下部平面を有し、生体に適合できる材料で
構成された略馬蹄形状の剛体(rigid)を備え、前記各
平面から馬蹄体の外側曲面に現われる少なくとも1つの
孔を備えている。
脊髄管に向けて向けられる両端部の間の隙間を有す
る、隣接する推骨の間へのインプラントの挿入の後、イ
ンプラントは馬蹄体の外側曲面における両端部から各々
の推骨に各孔を通して挿入された固定ピンまたはねじ、
又はペグ(pegs)またはボラード(bollard)によって
支持される。そして馬蹄体の両端部の間のすきまは、隣
接する推骨によっても制限される腔を形成する馬蹄体の
内側曲面によって境界づけられる中心空所に骨移植片の
挿入物のための開口部を形成する。
る、隣接する推骨の間へのインプラントの挿入の後、イ
ンプラントは馬蹄体の外側曲面における両端部から各々
の推骨に各孔を通して挿入された固定ピンまたはねじ、
又はペグ(pegs)またはボラード(bollard)によって
支持される。そして馬蹄体の両端部の間のすきまは、隣
接する推骨によっても制限される腔を形成する馬蹄体の
内側曲面によって境界づけられる中心空所に骨移植片の
挿入物のための開口部を形成する。
このように、インプラントはそれらの周囲から内側の
推骨を保護し、骨移植の台座(seating)のために有効
な推骨の各端面の中央部を残し、そして移植片内への陥
没または移植片の追出し、及び推骨との非癒着などの骨
移植片の負荷(推骨の相対的な揺れや回転によって別な
方法で作られる)が和らげられる。
推骨を保護し、骨移植の台座(seating)のために有効
な推骨の各端面の中央部を残し、そして移植片内への陥
没または移植片の追出し、及び推骨との非癒着などの骨
移植片の負荷(推骨の相対的な揺れや回転によって別な
方法で作られる)が和らげられる。
インプラントは、エポキシ樹脂のような炭素繊維によ
って補強したプラスチックスで形成されてもよく、また
不活性体又は生体に分解されうる繊維で補強された合成
物又はカルシウム・ニトライド(calcium nitride)の
ような生体に適合できる材料(biocompatible materia
l)で形成されてもよい。他の好適な材料の具体例はチ
タンのようなメタル、あるいはハイドロキシ・アパタイ
ト(hydroxyapatite)、及びステンレススチール又はセ
ラミックス、ポリエチレン・ハイドロキシアパタイト
(polyethylene hydroxyapatite)及びポリエチレン・
ハイドロキシブティレート(polyethylene hydroxybuty
rate)と共に形成されてもよい。
って補強したプラスチックスで形成されてもよく、また
不活性体又は生体に分解されうる繊維で補強された合成
物又はカルシウム・ニトライド(calcium nitride)の
ような生体に適合できる材料(biocompatible materia
l)で形成されてもよい。他の好適な材料の具体例はチ
タンのようなメタル、あるいはハイドロキシ・アパタイ
ト(hydroxyapatite)、及びステンレススチール又はセ
ラミックス、ポリエチレン・ハイドロキシアパタイト
(polyethylene hydroxyapatite)及びポリエチレン・
ハイドロキシブティレート(polyethylene hydroxybuty
rate)と共に形成されてもよい。
複数の孔は、固定ピン又はねじの挿入のために各平面
のどれか1又はそれ以上が選択的に使用され、好ましく
は各平面から馬蹄体の外側曲面に、都合よく一方の平面
及び他方の平面の間で交互に、例えば一方の平面に4つ
他方の平面に3つ設けられている。この発明は添附され
た図面を参照して具体例によって記述される。
のどれか1又はそれ以上が選択的に使用され、好ましく
は各平面から馬蹄体の外側曲面に、都合よく一方の平面
及び他方の平面の間で交互に、例えば一方の平面に4つ
他方の平面に3つ設けられている。この発明は添附され
た図面を参照して具体例によって記述される。
(実施例) 図面に示された馬蹄形状の脊髄インプラントは、前面
側推骨柱の境界の内側に十分含まれるように意図され、
構造的に最も強いその両端部の表面に隣接する推骨の間
のスペーサとして機能する。脊髄インプラントは、炭素
繊維で補強されたプラスチックスのような生体に適合で
きる材料からなり、馬蹄形状の馬蹄体はその両端部12に
向けて各々細くなる上部平面及び下部平面を有する。馬
蹄体には各々の平面(各々10、11)から馬蹄体の外側曲
面15に現われる複数の孔13、14が備えられている。多数
の孔において1つ又はそれ異常の選択された孔を通して
挿入される多数の固定ねじによって、接近する推骨の間
で固定するための馬蹄体をあたえ、孔の端部から外側曲
面15及び各推骨に、固定ねじが挿入され、馬蹄体の両端
の間の隙間16は隣接する推骨によっても制限される腔を
形成する馬蹄体の内側曲面によって境界づけられる中心
空所に骨移植片の挿入のための開口部を形成する。
側推骨柱の境界の内側に十分含まれるように意図され、
構造的に最も強いその両端部の表面に隣接する推骨の間
のスペーサとして機能する。脊髄インプラントは、炭素
繊維で補強されたプラスチックスのような生体に適合で
きる材料からなり、馬蹄形状の馬蹄体はその両端部12に
向けて各々細くなる上部平面及び下部平面を有する。馬
蹄体には各々の平面(各々10、11)から馬蹄体の外側曲
面15に現われる複数の孔13、14が備えられている。多数
の孔において1つ又はそれ異常の選択された孔を通して
挿入される多数の固定ねじによって、接近する推骨の間
で固定するための馬蹄体をあたえ、孔の端部から外側曲
面15及び各推骨に、固定ねじが挿入され、馬蹄体の両端
の間の隙間16は隣接する推骨によっても制限される腔を
形成する馬蹄体の内側曲面によって境界づけられる中心
空所に骨移植片の挿入のための開口部を形成する。
。各孔13、14はねじの頭部が支持されるところに面し
て肩部18(僅かに直径の異なる各部分の間に)が形成さ
れている。
て肩部18(僅かに直径の異なる各部分の間に)が形成さ
れている。
外径及び内径や厚さやテーパー(taper)に関するサ
イズ変化は、好ましくは種々のレベルでインプラントを
含む個々の脊髄に適合して選択的に決定される。
イズ変化は、好ましくは種々のレベルでインプラントを
含む個々の脊髄に適合して選択的に決定される。
円板交換物として使用されることに加えて、発明に応
じたより大きいサイズのインプラントがおそらく推骨本
体の交換物(vertebrae body replacement)として使用
されてもよい。
じたより大きいサイズのインプラントがおそらく推骨本
体の交換物(vertebrae body replacement)として使用
されてもよい。
中心空所は別々に骨移植片代用品で形成された挿入物
と個々に適合されてもよい。
と個々に適合されてもよい。
この発明の他の外観としては以下に述べることを除い
て上に述べた実施例に類似の特徴点を有している。すな
わち他の実施例として脊髄インプラントは、どちらの平
面にも複数の孔が設けられない代わりに、各々の面は各
馬蹄体の両端部を含む面に略平行な凹所(ridges)を有
し、(ridges)は脊柱に埋め込まれるとき隣接する推骨
に保持力をもたらす。
て上に述べた実施例に類似の特徴点を有している。すな
わち他の実施例として脊髄インプラントは、どちらの平
面にも複数の孔が設けられない代わりに、各々の面は各
馬蹄体の両端部を含む面に略平行な凹所(ridges)を有
し、(ridges)は脊柱に埋め込まれるとき隣接する推骨
に保持力をもたらす。
第1図は馬蹄体の上部平面からの平面図、第2図は馬蹄
体の下部平面からの平面図、第3図は馬蹄体の両端部か
らの図、第4図は第3図に対向する側からの図、第5図
は馬蹄体の側面図(他方の側面と一致)、第6図は第1
図の線VI−VIからの断面図である。 10…上部平面、11…下部平面、12…両端部、13、14…
孔、15…外部曲面、16…隙間、17…内部曲面、18…肩
部。
体の下部平面からの平面図、第3図は馬蹄体の両端部か
らの図、第4図は第3図に対向する側からの図、第5図
は馬蹄体の側面図(他方の側面と一致)、第6図は第1
図の線VI−VIからの断面図である。 10…上部平面、11…下部平面、12…両端部、13、14…
孔、15…外部曲面、16…隙間、17…内部曲面、18…肩
部。
Claims (7)
- 【請求項1】両端部に向かって収束する(converging)
上部平面及び下部平面を有する生体に適合できる材料の
略馬蹄形状の剛体(rigid)を備え、前記各平面から前
記馬蹄体の外側曲面に現われる少なくとも1つの孔を備
えていることを特徴とする脊髄インプラント - 【請求項2】前記各平面から馬蹄体の外側曲面に複数の
孔が備えられていることを特徴とする請求項第1項に記
載の脊髄インプラント - 【請求項3】前記の複数の孔は前記一方の平面と前記他
方の平面の間で交互に設けられることを特徴とする請求
項第2項に記載の脊髄インプラント - 【請求項4】前記一方の平面に4つの孔が設けられ、前
記他方の平面には3つの孔が設けられていることを特徴
とする請求項第3項に記載の脊髄インプラント。 - 【請求項5】前記各孔には、ねじ(screw)の頭部が支
持できるところに対して肩部が設けられていることを特
徴とする請求項第1項に記載の脊髄インプラント。 - 【請求項6】前記馬蹄の内側曲面によって境界づけられ
る中心空所は骨移植片代用品(a bone graft substitut
e)で形成された挿入物と適合されることを特徴とする
請求項第1項に記載の脊髄インプラント。 - 【請求項7】両端部に向かって収束する(converging)
上部平面及び下部平面を有する生体に適合できる材料の
略馬蹄形状の剛体(rigid)を備え、及び前記各面は前
記馬蹄の両端を含む面に略平行な凹所(ridges)を有す
ることを特徴とする脊髄インプラント。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB878718627A GB8718627D0 (en) | 1987-08-06 | 1987-08-06 | Spinal implants |
GB8718627 | 1987-08-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01303148A JPH01303148A (ja) | 1989-12-07 |
JPH0822294B2 true JPH0822294B2 (ja) | 1996-03-06 |
Family
ID=10621905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63195921A Expired - Lifetime JPH0822294B2 (ja) | 1987-08-06 | 1988-08-05 | 脊髄インプラント |
Country Status (8)
Country | Link |
---|---|
US (1) | US4904261A (ja) |
EP (1) | EP0302719B1 (ja) |
JP (1) | JPH0822294B2 (ja) |
AT (1) | ATE67395T1 (ja) |
DE (1) | DE3864946D1 (ja) |
ES (1) | ES2024647B3 (ja) |
GB (2) | GB8718627D0 (ja) |
GR (1) | GR3002859T3 (ja) |
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1987
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- 1988-08-03 ES ES88307187T patent/ES2024647B3/es not_active Expired - Lifetime
- 1988-08-03 DE DE8888307187T patent/DE3864946D1/de not_active Expired - Lifetime
- 1988-08-03 AT AT88307187T patent/ATE67395T1/de active
- 1988-08-03 EP EP88307187A patent/EP0302719B1/en not_active Expired - Lifetime
- 1988-08-04 US US07/228,331 patent/US4904261A/en not_active Expired - Lifetime
- 1988-08-05 JP JP63195921A patent/JPH0822294B2/ja not_active Expired - Lifetime
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1991
- 1991-10-09 GR GR91401507T patent/GR3002859T3/el unknown
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JP2005517492A (ja) * | 2002-02-19 | 2005-06-16 | ジンテーズ アクチエンゲゼルシャフト クール | 椎間インプラント |
Also Published As
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---|---|
ES2024647B3 (es) | 1992-03-01 |
ATE67395T1 (de) | 1991-10-15 |
US4904261A (en) | 1990-02-27 |
EP0302719A1 (en) | 1989-02-08 |
GB8818420D0 (en) | 1988-09-07 |
GB2207607B (en) | 1990-11-07 |
GR3002859T3 (en) | 1993-01-25 |
GB8718627D0 (en) | 1987-09-09 |
JPH01303148A (ja) | 1989-12-07 |
GB2207607A (en) | 1989-02-08 |
EP0302719B1 (en) | 1991-09-18 |
DE3864946D1 (de) | 1991-10-24 |
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