JP3826405B2 - スペース保持部材として脊柱の椎体間に挿入する生体埋め込み部材 - Google Patents
スペース保持部材として脊柱の椎体間に挿入する生体埋め込み部材 Download PDFInfo
- Publication number
- JP3826405B2 JP3826405B2 JP50104098A JP50104098A JP3826405B2 JP 3826405 B2 JP3826405 B2 JP 3826405B2 JP 50104098 A JP50104098 A JP 50104098A JP 50104098 A JP50104098 A JP 50104098A JP 3826405 B2 JP3826405 B2 JP 3826405B2
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- Japan
- Prior art keywords
- living body
- sleeve
- embedded
- implant
- thread
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- 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
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- 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
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- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
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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
- A61F2/30767—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
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- 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
- A61F2002/30795—Blind bores, e.g. of circular cross-section
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- 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
- A61F2002/30841—Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
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- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
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- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0041—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels or rivets, e.g. connecting screws
-
- 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
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0065—Three-dimensional shapes toroidal, e.g. ring-shaped, doughnut-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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0069—Three-dimensional shapes cylindrical
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- 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)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Description
このような生体埋め込み部材は、DE4423257A1号より公知であり、脊柱から離れた椎骨もしくは椎骨部分のためのスペース保持部材として用いられる。この生体埋め込み部材は、埋め込み部材中央部分の回転によって、生体埋め込み部材を含む脊柱領域の伸延を可能にする。ここで、両方の埋め込み部材末端部分がそれぞれ1つの独自のネジ山によって埋め込み部材中央部分に接続される。また、両ネジは、脊柱の長手方向に、共軸に配されていて、互いに反対方向のネジ方向を有している。埋め込み部材部分の抜き部(通孔)を通って、望ましくは、骨セメントや骨の断片のような、管状スリーブの内部に挿入される材料を装填することができる。このことによって、生体埋め込み部材とのより迅速な血管の接続が達成される。したがって、この生体埋め込み部材は、骨形成の誘導と骨の刺激に十分に適していて、埋め込みの後、簡単かつ迅速に根づくことができる。しかし、この生体埋め込み部材の軸方向の全長は、少なくとも、両方の反対方向のネジ山の全長と同じであり、このことは、最小限の生体埋め込み部材の長さに関しての制限を意味する。その結果、このような公知の生体埋め込み部材は、椎間板を代替、補充するための中間椎骨スペース保持部材としては適切でない。
本発明の根底をなす課題は、生体埋め込み部材が、特に頚椎領域中の、椎骨体の完全な代替品としての他に、特に腰部領域における、椎間板補充のための中間椎骨スペース保持部材としての利用を可能にする最小限の長さに調整可能であるように冒頭に述べたような生体埋め込み部材を構成するということである。
本発明によると、前記課題は以下によって解決される。両方の埋め込み部材末端部分が自身のスリーブでもって軸方向に互いに係合し合い、スリーブ壁にスリーブ壁に沿って軸方向に向き合って可動なように案内されていて、また、スリーブ軸の周りの相互の回転が防がれている。ネジ山が、埋め込み部材中央部分と、該部分にネジ山によって接続された埋め込み部材末端部分との間に、該埋め込み部材末端部分のスリーブに備えられている。前記スリーブのネジ中で回転可能な埋め込み部材中央部分が他方の埋め込み部材末端部分のための軸方向のストッパーとして構成されている。
本発明の生体埋め込み部材はただ1つのネジ山のみを有しているので、この生体埋め込み部材が短縮されることのできる可能な最小限の長さは、前記の唯一のネジ山のネジ長によって決められる。というのは、二つの埋め込み部材末端部分が、実際上、これらの管状スリーブの全長にわたって完全に互いの中にネジ込まれることができ、このことは、全体として軸方向に非常に短い作りを可能とし、そのため、椎間板代替品としての生体埋め込み部材の利用を可能にするからである。それにもかかわらず、生体埋め込み部材の長さ全体が望みに応じて変えられるように、これに対応して埋め込み部材中央部分がネジ山中において回転させられる必要があるのみである。したがって、手術中の生体埋め込み部材の伸延の可能性は完全に維持されたままである。
製造、組み立て、及び、操作に関して特に簡単で、それ故好都合な、本発明の生体埋め込み部材の実施態様においては、埋め込み部材中央部分とネジ山によって接続された埋め込み部材末端部分のスリーブは、該埋め込み部材末端部分の外周面上にネジ山を有し、埋め込み部材中央部分と、他方の埋め込み部材末端部分のスリーブとによって、半径方向外側から囲まれていることを特徴としている。このことによって、埋め込み部材中央部分は、回転のために簡単に手が届く。また、この埋め込み部材中央部分を案内する、埋め込み部材末端部分のネジ山は、他方の埋め込み部材末端部分のスリーブによって軸方向における外側を覆われている。
両方の埋め込み部材末端部分の相互の回転を防ぐために、一方の埋め込み部材部分のスリーブ壁中には、軸方向に走行する案内スリットが備えられ、他方の埋め込み部材部分のスリーブ壁には、この案内スリット中に係合する案内突起が備えられているように配されることも好ましい。案内スリット及び案内突起は幾つかずつ分配されてスリーブ壁の周囲にわたって配設されていてよい。
両方の埋め込み部材末端部分の相互の位置を、埋め込み部材中央部分のストッパー機能に依らずに固定させることができるために、本発明の生体埋め込み部材の他の好都合な実施態様は、埋め込み部材末端部分のうちの一方の部分のスリーブが、両方の埋め込み部材末端部分のスリーブが重なる領域において半径方向のネジ孔を少なくとも1つ有していて、このネジ孔中を、他方の埋め込み部材末端部分のスリーブに対して固定可能な締付ネジが案内されていることを特徴としている。
他の好ましい実施態様においては、一方または両方の埋め込み部材末端部分が、それぞれ埋め込み部材中央部分から離れた端部において、リング状の先端面プレートを備え、この先端面プレートが自身の正面において、隣接する椎骨中に入り込むための刃先部もしくは尖端部を備えるというのでも良い。
埋め込み部材末端部分のスリーブ壁中の抜き部の構成及び配設に関して、本発明の枠内で、一定の選択の自由が存在する。一方では、抜き部全体によって表わされる内のり断面がなるべく大きくなければない。他方では、この抜き部が、ネジ山領域の力を許容できないほどに弱めるようにすることはできない。すなわち、一方の埋め込み部材末端部分と、該部分にネジ山によって接続された埋め込み部材中央部分との間のネジ接続の強度を損なうようにすることはできない。一般に、抜き部は、断面が円形の孔として、または、断面が一方に長い長穴として構成され、スリーブ周囲にわたって均等に分配されて配設される。他の抜き部は、主に埋め込み部材中央部分の外周面中に、周囲にわたって分配されて配設されていて、埋め込み部材中央部分の回転のために用いられるスパナを差し込むためのスパナ開口部として構成されている。
以下において図面に示された実施例を用いて本発明が詳細に説明される。
第1図は、本発明の生体埋め込み部材の側面図である。軸方向長さを最小限に調整した状態を示す。
第2図は、第1図と同じ生体埋め込み部材について、最大限の長さに調整した状態を示すものである。
第3図は、生体埋め込み部材の先端面の図である。
第4図は、第1図及び第2図の生体埋め込み部材について、軸方向に引き離した状態で示すものである。
第5図は、第4図におけるV−V断面を示す。
第6図は、第4図におけるVI−VI断面を示す。
第7図は、第4図におけるVII−VII断面を示す。
図示された生体埋め込み部材は、図面中にはそれ自体が描かれていない椎骨の間にスペース保持部材として挿入するのに用いられ、しかも、生体埋め込み部材の長さの調整にしたがって、椎間板を代替するために、または、脊柱から離れた椎骨もしくは椎骨部分を代替するために用いられる。
生体埋め込み部材は、それぞれ隣接する椎骨にあてがうための2つの埋め込み部材末端部分1,2と、これらの部分の間にある埋め込み部材中央部分3とから成っている。この埋め込み部材中央部分3は、両方の埋め込み部材末端部分のうちの一方(図面においては常に上方の埋め込み部材末端部分1)と、ネジ山4によって接続されている。3つの埋め込み部材部分1〜3と、ネジ山4とは、脊柱の長さ方向に共軸に配されている。ネジ山4中の埋め込み部材中央部分3の回転によって、生体埋め込み部材全体の長さは、図1及び図2の比較により明らかな範囲内で可変である。
埋め込み部材末端部分1,2は、抜き部6によって孔を開けられたスリーブ壁を有する管状スリーブ5′,5″を形作っている。この抜き部6は、周囲の組織中に生体埋め込み部材が迅速に根づくことを可能にする。両方の埋め込み部材末端部分1,2は、自身のスリーブ5′,5″でもって軸方向に互いに係合し合う。この埋め込み部分末端部分は、スリーブ壁に沿って軸方向に向き合って可動に案内されており、また、スリーブ軸の周りの相互の回転が、後述の方法で防がれている。
この埋め込み部材末端部分のスリーブ5′には、埋め込み部材中央部分3と、この部分にネジによって接続された側の(したがって図面中では上方の)埋め込み部材末端部分1との間にネジ山4が備えられている。
該スリーブ5′のネジ山4中において回転可能な埋め込み部材中央部分3は、他方の(図面中で下方の)埋め込み部材末端部分2のスリーブ5″のための軸方向のストッパーとして構成されている。上方の埋め込み部材末端部分1のネジ山4中における埋め込み部材中央部分3の回転によって、上方の埋め込み部材末端部分1上における埋め込み部材中央部分3の軸方向の位置が変わる。その結果、両方の埋め込み部材末端部分1の軸方向の相互の位置も変えられる。図面中で上方の埋め込み部材末端部分1に対する、図面中で下方の埋め込み部材末端部分2の位置は、埋め込み部材末端部分2のスリーブ5″についての埋め込み部材中央部分3へのストッパー作用によって決められているからである。
埋め込み部材中央部分3にネジ山によって接続されている、上方の埋め込み部材末端部分1のスリーブは、自身の外周面上にネジ山4を有している。このネジ山4中には、スリーブ5′を半径方向におけるその外側から囲み、雌ネジ山4′を備える埋め込み部材中央部分3が係合する。埋め込み部材中央部分3にネジによって接続されている、図面中で上方の埋め込み部材末端部分1のスリーブ5′は、埋め込み部材中央部分3による他にも、他方の埋め込み部材末端部分2のスリーブ5″によっても、半径方向における外側から囲まれている。
両方の埋め込み部材末端部分1,2の相互の回転を防ぐために、図面において上方の埋め込み部材末端部分1のスリーブ壁中には、軸方向に延びる案内スリット7が備えられ、他方の、図面において下方の埋め込み部材部分2のスリーブ壁には、該案内スリット7に係合する案内突起8が備えられる。案内突起8は、半径方向に、スリーブ壁中に挿入されたピン8′によって形成されている。案内スリット7の長さにより、両方の埋め込み部材末端部分1,2が、相対して軸方向に移動できる寸法が決められる。さらに、下方の埋め込み部材末端部分2のスリーブ5″は、上方の埋め込み部材末端部分1のスリーブ5′と重なり合う領域中に、少なくとも1つの半径方向のネジ孔9を有している。このネジ孔中を、図1及び図2にのみ描かれていて上方の埋め込み部材末端部分1のスリーブ5′に対して固定可能な締付ネジ10が案内されている。その結果、締められた締付ネジ10のために、両埋め込み部材末端部分1,2は軸方向に引き離され得ない。
さらに、上方の埋め込み部材末端部分1は、埋め込み部材中央部分3から離れた方の端部において、ネジ山の直径を越えて半径方向に外側へと突出するリング状先端面プレート11を備えている。このプレートの先端側の面には、隣接する椎骨中に入り込むための刃先部または尖端部12′が備えられている。対応する刃先部または尖端部12″が、下方の埋め込み部材末端部分2の、軸方向において対向する正面側スリーブ縁部にある。
埋め込み部材中央部分3は、自身の外周面に、周囲にわたって分配されて配設された抜き部13を備えている。この抜き部は、埋め込み部材中央部分3の回転のために用いられるスパナ(不図示)を差し込むためのスパナ開口部として構成されている。
Claims (6)
- スペース保持部材として椎骨体の間に挿入するための生体埋め込み部材であって、隣接する椎骨にあてがうための2つの埋め込み部材末端部分(1,2)と、これらの部分の間にあって埋め込み部材末端部分の一方にネジ山(4)によって接続されている埋め込み部材中央部分(3)とからなり、
これら3つの埋め込み部材部分(1,2,3)とネジ山(4)とが脊柱の長手方向に共軸に配され、埋め込み部材中央部分(3)の回転によって生体埋め込み部材全体の長さが可変であり、
埋め込み部材末端部分(1,2)が、抜き部(6)によって孔をあけられたスリーブ壁を備えた管状スリーブ(5′,5″)を形成するという生体埋め込み部材において、
両方の埋め込み部材末端部分(1,2)が、これらのスリーブ(5′,5″)でもって軸方向に互いに係合し合い、スリーブ壁に沿って軸方向に向き合って可動なように案内されていて、また、スリーブ軸の周りの相互の回転が防がれており、
埋め込み部材中央部分(3)と、この埋め込み部材中央部分にネジ山によって接続されている埋め込み部材末端部分(1)との間に、この埋め込み部材末端部分のスリーブ(5′)にネジ山(4)が備えられ、
このスリーブ(5′)のネジ山(4)中で回転可能な埋め込み部材中央部分(3)が、他方の埋め込み部材末端部分(2)のための軸方向のストッパーとして構成されていることを特徴とする生体埋め込み部材。 - 請求項1に記載の生体埋め込み部材において、
埋め込み部材中央部分(3)にネジ山によって接続された埋め込み部材末端部分(1)のスリーブ(5′)は、自身の外周面にネジ山(4)を備え、埋め込み部材中央部分(3)と、他方の埋め込み部材末端部分(2)のスリーブ(5″)とによって、半径方向外側から囲まれていることを特徴とする生体埋め込み部材。 - 請求項1または2に記載の生体埋め込み部材において、
両方の埋め込み部材末端部分(1,2)の相互の回転を防ぐために、一方の埋め込み部材部分(1)のスリーブ壁に、軸方向に延びる案内スリット(7)が備えられ、他方の埋め込み部材部分(2)のスリーブ壁には、この案内スリット(7)に係合する案内突起(8)が備えられていることを特徴とする生体埋め込み部材。 - 請求項1〜3のいずれかに記載の生体埋め込み部材において、
両方の埋め込み部材末端部分(1,2)のスリーブ(5′,5″)が重なった領域において、埋め込み部材末端部分(1,2)のうちの一方のスリーブ(5″)は、少なくとも1つの半径方向のネジ孔(9)を有し、このネジ孔中には、他方の埋め込み部材末端部分(1)のスリーブ(5′)に対して固定可能な締付ネジ(10)が案内されていることを特徴とする生体埋め込み部材。 - 請求項1〜4のいずれかに記載の生体埋め込み部材において、
両方の埋め込み部材末端部分(1,2)のうちの一方は、埋め込み部材中央部分(3)から離れた方の端部に、リング状先端面プレート(11)を備え、この先端面プレート(11)は、自身の正面に、隣接する椎骨中に入り込むための刃先部または尖端部(12′,12″)を備えていることを特徴とする生体埋め込み部材。 - 請求項1〜5のいずれかに記載の生体埋め込み部材において、埋め込み部材中央部分(3)が、自身の外周面に、周囲にわたって分配されて配設された抜き部(13)を有していて、該抜き部は、埋め込み部材中央部分(3)の回転のために用いられるスパナを差し込みためのスパナ開口部として構成されていることを特徴とする生体埋め込み部材。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE19622827.1 | 1996-06-07 | ||
DE19622827A DE19622827B4 (de) | 1996-06-07 | 1996-06-07 | Implantat zum Einsetzen zwischen Wirbelkörper als Platzhalter |
PCT/DE1997/001065 WO1997047258A1 (de) | 1996-06-07 | 1997-05-22 | Implantat zum einsetzen zwischen wirbelkörper als platzhalter |
Publications (2)
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JPH11510720A JPH11510720A (ja) | 1999-09-21 |
JP3826405B2 true JP3826405B2 (ja) | 2006-09-27 |
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Application Number | Title | Priority Date | Filing Date |
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JP50104098A Expired - Lifetime JP3826405B2 (ja) | 1996-06-07 | 1997-05-22 | スペース保持部材として脊柱の椎体間に挿入する生体埋め込み部材 |
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US (1) | US6015436A (ja) |
EP (1) | EP0848603B1 (ja) |
JP (1) | JP3826405B2 (ja) |
AT (1) | ATE214578T1 (ja) |
CA (1) | CA2228812C (ja) |
DE (2) | DE19622827B4 (ja) |
ES (1) | ES2171947T3 (ja) |
WO (1) | WO1997047258A1 (ja) |
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DE19509317B4 (de) * | 1995-03-15 | 2006-08-10 | Heinrich Ulrich | Implantat zum Einsetzen zwischen Wirbelkörper der Wirbelsäule als Platzhalter |
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1996
- 1996-06-07 DE DE19622827A patent/DE19622827B4/de not_active Expired - Fee Related
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1997
- 1997-05-22 ES ES97925873T patent/ES2171947T3/es not_active Expired - Lifetime
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- 1997-05-22 JP JP50104098A patent/JP3826405B2/ja not_active Expired - Lifetime
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JPH11510720A (ja) | 1999-09-21 |
DE19622827B4 (de) | 2009-04-23 |
CA2228812A1 (en) | 1997-12-18 |
US6015436A (en) | 2000-01-18 |
WO1997047258A1 (de) | 1997-12-18 |
CA2228812C (en) | 2005-11-15 |
DE59706670D1 (de) | 2002-04-25 |
ATE214578T1 (de) | 2002-04-15 |
ES2171947T3 (es) | 2002-09-16 |
DE19622827A1 (de) | 1997-12-11 |
EP0848603B1 (de) | 2002-03-20 |
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