JP2017131679A - 展開式椎体間インプラント及び使用の方法 - Google Patents
展開式椎体間インプラント及び使用の方法 Download PDFInfo
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- JP2017131679A JP2017131679A JP2017047419A JP2017047419A JP2017131679A JP 2017131679 A JP2017131679 A JP 2017131679A JP 2017047419 A JP2017047419 A JP 2017047419A JP 2017047419 A JP2017047419 A JP 2017047419A JP 2017131679 A JP2017131679 A JP 2017131679A
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- component
- intervertebral implant
- wedge
- slope
- configuration
- Prior art date
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Links
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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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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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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
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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30507—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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
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- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30515—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking wedge or block
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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
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- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
- A61F2002/30538—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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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- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
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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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
- A61F2310/00293—Ceramics or ceramic-like structures containing a phosphorus-containing compound, e.g. apatite
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00341—Coral, e.g. aragonite, porite
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00359—Bone or bony tissue
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00976—Coating or prosthesis-covering structure made of proteins or of polypeptides, e.g. of bone morphogenic proteins BMP or of transforming growth factors TGF
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Abstract
Description
またここに使用されている用語は、特定の実施形態を単に一例として説明するのが目的であって、請求されている開示について限定を課すことを意図するものではないことを理解されたい。更に、付随の特許請求の範囲を含め明細書での使用に際し、原文の単数形「a」、「an」、及び「the」の対訳である「一」、「或る」、及び「当該」は、複数形を含み、特定の数値への言及は、文脈により別途明白に指示されていない限り、少なくとも当該の特定の値を含む。範囲は、ここでは、「約」又は「大凡」と付く1つの特定値から、及び/又は「約」又は「大凡」と付く別の特定値まで、として表されていよう。その様な範囲が表されているとき、別の実施形態は、当該一方の特定値からを、及び/又は当該他方の特定値までを、含んでいる。同様に、値が、先行詞「約」の使用によって近似として表されているとき、当該特定の値は別の実施形態を成すものと理解しておきたい。更に、例えば、水平、垂直、上、上側、下側、下、外、内、末端(位置又は場所を表示)、左及び右、後、前、などの様な全ての空間参照は、例示のみが目的であり、本開示の範囲内で変わり得るものと理解している。例えば、「上位」及び「下位」という参照は、相対であり、他方に対しての文脈でしか使用されず、必ずしも「上側」及び「下側」であるとは限らない。
SO4ポリマーゴム、ポリエチレンテレフタレート(PET)、布、シリコン、ポリウレタン、シリコンポリウレタンコポリマー、ポリマーゴム、ポリオレフィンゴム、ヒドロゲル、半剛性及び剛性材料、エラストマー、ゴム、熱可塑性エラストマー、熱硬化性エラストマー、エラストマー複合材、ポリフェニレン、ポリアミド、ポリイミド、ポリエーテルイミド、ポリエチレン、エポキシ、を含む剛性ポリマー、自家移植片、同種移植片、異種移植片、又は遺伝子組み換え皮質骨及び/又は皮質海綿骨、を含む骨材料、及び組織成長又は分化因子、即ち、一部分解吸収性材料として、例えば、金属とカルシウムを基材とするセラミックスとの複合材、PEEKとカルシウムを基材とするセラミックスとの複合材、PEEKと分解吸収性ポリマーとの複合材、など、全分解吸収性材料として、例えば、リン酸カルシウム、リン酸三カルシウム(TCP)、ヒドロキシアパタイト(HA)‐TCP、硫酸カルシウム、の様なカルシウムを基材とするセラミックス、など、又は他の分解吸収性ポリマーとして、ポリラクチド、ポリグリコリド、ポリチロシンカーボネート、ポリカプロラクトン、など、及びそれらの組合せ、の様な材料から製作することができる。システムの様々な構成要素は、強度、剛性、弾性、可撓性、伸展性、生体力学的性能、耐久性、及びX線透過性、又は画像化選好、の様な様々な所望の特性を実現するように、上記材料を含む材料複合物から製作されていてもよい。システムの構成要素は、個別的に又は集合的に、更に、上述の材料の2つ又はそれ以上から成る組合せの様な混成材料から製作されていてもよい。
固定を強化する代わりの表面構成、例えば、特定の用途の要件に従って、粗面、弓形、波状、メッシュ、有孔、半有孔、窪み付き、及び/又は肌理付きの様な面構成を有していてもよいと構想している。更に、要素54は、軸aに対して、例えば、直角に及び/又は鋭角又は鈍角の様な他の角度向きに配置されていてよいし、同軸に配置されていてもよいし、及び/又は、オフセットしているか又は千鳥状であってもよいと構想している。
り、楔58の表面に係合するように構成されている。内側の面82は、楔58を構成要素46、48に対して動かすことができるように楔58の表面に係合する。
ト202の様な受け器を含んでいる。楔58は、少なくとも1つの薬剤、例えば骨移植片、を配置させるように構成されている例えばバスケット204の様な受け器を含んでいる。第1の折り畳み構成では、バスケット202、204は、直列に隣り合う構成に配置されている。椎間インプラント40が第2の展開構成へ展開されてゆくと、バスケット202、204は、垂直に積み重ねられた構成へと並進し、骨移植片が接続されたバスケット202、204を通って成長できるようにする。バスケット202、204の各々は、骨がバスケット202と204間で成長するのを許容する複数の開口部を含んでいる。1つの実施形態では、バスケット202は一定した体積を有する上側のバスケットであり、バスケット204は一定した体積を有する下側のバスケットである。バスケット202、204は、手術部位への送達に先立って骨移植片を詰められ、直列に隣り合う構成に配置される。バスケット202、204は、椎間インプラント40が第1の折り畳み構成から第2の展開構成へ展開してゆく際にバスケット202と204がそれらの間の接触を維持できるようにする勾配の付けられた接合面を有しており、バスケット202、204は、隣り合う構成から積重構成及び/又は上下構成へと移行する。このバスケット202と204間の接合面は、バスケット202と204の一方の骨移植片がバスケット202と204の他方の骨移植片と接合することができるように開口部を有している。この構成は、骨移植片を第1の椎骨終板からバスケット202を通し次にバスケット204を通して又はバスケット204を通し次にバスケット202を通して第2の椎骨終板へ融合させられるようにする。
素46、48が第1の折り畳み構成と第2の展開構成の間で展開するように上述の様に滑動可能に係合する。
か、又は置換されてもよい。椎体間インプラントシステムの構成要素の1つ又は全ては、用手操作及び/又はフリーハンド技法により手術部位へ送達させることができるものと考えている。更に、椎間インプラント40は、後方挿入され、次いで前方及び/又は側方及び/又は正中に操作されてもよいものと考えている。
いるか、離間されているか、及び/又は千鳥状になっていてもよい。
0、562は、長手方向軸aaに対して実質的に平行な向きに配置されている。
58は構成要素546に係合する第1面607と構成要素548に係合する第2面608とを含んでいる。楔558は、椎間インプラント540を第1構成と第2構成の間で展開し及び折り畳むために構成要素546、548に可動式に係合する、長手方向軸aaに沿って配置された第1レール部分610及び第2レール部分612を含んでいる。
レール部分610、612の各々は、第1面607の少なくとも一部分であって椎間インプラント540を第1構成と第2構成の間で展開し及び折り畳むべく構成要素546の内側の面556の少なくとも一部分に係合する部分を含んでいる。面607の、レール部分610に沿って配置されている楔部分614、616を含む部分は、延在部560に沿って配置されている部分570、576に滑動可能に係合する。面607の、レール部分612に沿って配置されている楔部分620、622を含む部分は、延在部562に沿って配置されている部分570、576に滑動可能に係合する。
うに構成されている例えばバスケット702の様な受け器を含んでいる。楔558は、少なくとも1つの薬剤、例えば骨移植片、を配置させるように構成されている例えばバスケット704の様な受け器を含んでいる。第1の折り畳み構成では、バスケット702、704は、直列に隣り合う構成に配置されている。椎間インプラント540が第2の展開構成へ展開されてゆくと、バスケット702、704は、垂直に積み重ねられた構成へと並進し、骨移植片が接続されたバスケット702、704を通って成長できるようにする。バスケット702、704の各々は、骨がバスケット702と704の間で成長するのを許容する複数の開口部を含んでいる。
42 前端
44 後端
46 ピストン構成要素
48 基部構成要素
50 蝶番
52 終板面
53 開口部
54 ***要素
56 内側の面
58 楔
60 第1延在部
62 第2延在部
64 前端
66 後端
68 平板状部分
70 第1傾斜部分
72 陥凹部分
74 移行部
76 第2傾斜部分
78 終板面
80 ***要素
82 内側の面
84 前端
86 後端
88 壁
90 ねじ山の切られた開口部
92 ねじ山の切られたねじ
94 遠位端
96 フランジ
98 壁
100 縮径部
102 隣接面
104 ピン
106 スロット
107 楔の第1面
108 楔の第2面
110 第1レール部分
112 第2レール部分
114 前楔部分
116 後楔部分
118 突起
120 前楔部分
122 後楔部分
124 突起
202、204 バスケット
206 開口部
292 引締ねじ
294 時計回りのねじ部
296 近位端
298 反時計回りのねじ部
300 遠位端
302 ねじ山の切られた開口部
402 楔部分の第1面
404 楔部分の第2面
540 椎間インプラント
542 前端
544 後端
546 ピストン構成要素
548 基部構成要素
550 蝶番
552 終板面
553 開口部
554 ***要素
556 内側の面
558 楔
560 第1延在部
562 第2延在部
564 前端
566 後端
568 基部構成要素に係合する部分
570 傾斜部分
576 直線部分
578 終板面
580 ***要素
582 壁
584 前端
586 後端
588 壁部分
590 ねじ山の切られたスロット
591 壁
592 ねじ山の切られたねじ
604 ピン
606 細長いスロット
607 楔の第1面
608 楔の第2面
610 第1レール部分
612 第2レール部分
614 前楔部分
616 後楔部分
618 楔部分間に配置され楔部分同士を接続している部材
620 前楔部分
622 後楔部分
702、704 バスケット
840 椎間インプラント
842 前端
846 ピストン構成要素
848 基部構成要素
858 楔
860、862 延在部
884 楔形状の前端
886 後端
892 ねじ
902 リンク仕掛け構成要素
904 第1端
906 スロット
908 ピン
910 第2端
912 ピン
948 ピン
950 チャネル
952 側壁
a、aa 長手方向軸
h1 前楔部分の第1高さ
h2 後楔部分の第2高さ
L1 開口部の長さ
L2 開口部の減少した長さ
α1 前楔部分の長手方向軸に対する第1傾斜角度
α2 後楔部分の長手方向軸に対する第2傾斜角度
β1 楔部分の第1面の傾斜角度
β2 楔部分の第2面の傾斜角度
v 骨移植片の体積
V 椎骨
V1 第1椎骨
V2 第2椎骨
I 椎間円板空間
S スリーブ又はカニューレ
P 手術経路
Claims (19)
- 椎間インプラントにおいて、
外側の組織係合面及び内側の面を備えている第1構成要素と、
前記第1構成要素へ接続されていて、そこから相対的に動かすことのできる第2構成要素であって、外側の組織係合面及び内側の面を備え、作動器を含んでいる、第2構成要素と、
前記第1構成要素及び前記第2構成要素に係合するように配置されていて、当該第1構成要素及び当該第2構成要素に対して動かすことのできる第3構成要素であって、少なくとも、第1斜面及び前記第1斜面から軸方向に離間されている第2斜面を備えている、第3構成要素と、を備えており、
前記作動器は、前記斜面が前記1構成要素と前記第2構成要素の少なくとも一方の前記内側の面に係合して当該構成要素同士を第1の折り畳み構成と第2の展開構成の間で動かすような前記3構成要素の軸方向並進を有効にするべく当該第3構成要素と係合させることができる、椎間インプラント。 - 前記第1斜面は第1高さを有し、前記第2斜面は第2高さを有し、前記第1高さは前記第2高さより大きい、請求項1に記載の椎間インプラント。
- 前記第1斜面は第1傾斜角度を有し、前記第2斜面は第2傾斜角度を有し、前記第1傾斜角度は前記第2傾斜角度より大きい、請求項1に記載の椎間インプラント。
- 前記椎間インプラントは骨移植片空洞を更に備えており、前記第1構成要素と前記第2構成要素と前記第3構成要素の少なくとも1つは前記骨移植片空洞を画定しており、当該骨移植片空洞は前記第1の折り畳み構成と前記第2の展開構成の間で骨移植片体積を維持するように構成されている、請求項1に記載の椎間インプラント。
- 前記第2構成要素はその後端に隣接して配置されている壁を含んでおり、前記第3構成要素は軸方向並進中に前記壁の周りを動くレール部分を含んでいる、請求項1に記載の椎間インプラント。
- 前記第3構成要素は骨移植片受け器を含んでいる、請求項1に記載の椎間インプラント。
- 前記第3構成要素は骨移植片受け器を含んでおり、前記第1構成要素と前記第2構成要素の少なくとも一方は骨移植片受け器を含んでいる、請求項1に記載の椎間インプラント。
- 前記第2構成要素はその後端に隣接して配置されている壁を含んでおり、前記第3構成要素は軸方向並進中に前記壁内を動くレール部分を含んでいる、請求項1に記載の椎間インプラント。
- 前記第1構成要素と前記第2構成要素と前記第3構成要素は、軸方向長さを画定する骨移植片空洞を画定しており、前記軸方向長さは前記第1構成要素と前記第2構成要素と前記第3構成要素が前記第1構成から前記第2構成へ動くにつれて減少する、請求項1に記載の椎間インプラント。
- 前記作動器は、前記第2構成要素に形成されているねじ山の切られた空洞と、前記第3構成要素と係合するように構成されている引締ねじと、を含んでいる、請求項1に記載の椎間インプラント。
- 前記第1斜面は前楔を、前記第2斜面は後楔を、前記前楔が前記第1構成要素の前端に隣接に配置され前記後楔が前記第1構成要素の後端に隣接に配置されるようにして備えている、請求項1に記載の椎間インプラント。
- 前記第2の展開構成は、前端及び前記後端が同等に展開するような初期展開と、前記前端が前記後端より大きく展開する二次展開と、を含んでいる、請求項11に記載の椎間インプラント。
- 前記第1構成要素の第1端は、前記第2構成要素の第1端へ枢動可能に接続されている、請求項1に記載の椎間インプラント。
- 前記椎間インプラントは、前記第1構成要素及び前記第3構成要素の第2端へ取り付けられている可動式リンク仕掛けを更に備えており、前記構成要素同士の前記第2構成から前記第1構成への運動中、前記リンク仕掛けは当該構成要素同士を折り畳ませる配置向きへ引き付ける、請求項1に記載の椎間インプラント。
- 前記リンク仕掛けは、前記第1構成要素のスロットと、前記第3構成要素と一体に画定されているピンと、を備えている、請求項14に記載の椎間インプラント。
- 前記第1斜面は直線状部材を介して前記第2斜面と接続されている、請求項1に記載の椎間インプラント。
- 前記第3構成要素は、前記第1斜面及び前記第2斜面を含む第1レールと、第3斜面及び第4斜面を含む第2レールと、を備えており、前記第3斜面は前記第3斜面から軸方向に離間されている、請求項1に記載の椎間インプラント。
- 前記第1斜面は、第1傾斜角度を有する第1面と、第2傾斜角度を有する第2面と、を含んでいる、請求項1に記載の椎間インプラント。
- 椎間インプラントにおいて、
ピストン構成要素であって、終板面及び前記終板面に対して反対の向きに配置されている内側の面を備え、前端と後端の間を延びている、ピストン構成要素と、
基部構成要素であって、終板面及び当該基部構成要素の前記終板面に対して反対の向きに配置されている内側の面を備え、前端と後端の間を延び、前記ピストン構成要素へそれぞれの前記後端付近で枢動可能に接続されていて、当該基部構成要素の前記後端はねじ山の切られた空洞を含んでいる、基部構成要素と、
前記ねじ山の切られた空洞内に配置されるように構成されているねじ山の切られたねじと、
前記ピストン構成要素及び前記基部構成要素に係合するように配置されていて、当該ピストン構成要素及び当該基部構成要素に対して動かすことのできる楔であって、第1高さと第1傾斜角度を有する第1斜面及び第2高さと第2傾斜角度を有する第2斜面を備え、前記第1斜面は前記第2斜面から軸方向に離間されている、楔と、を備えており、
前記ねじ山の切られたねじは、前記斜面が前記第1構成要素の前記内側の面に係合して当該第1構成要素を前記第2構成要素に対して枢動させ、その結果、当該構成要素同士が第1の折り畳み構成と第2の展開構成の間で展開するような前記楔の軸方向並進を有効にするべく当該楔と係合させることができる、椎間インプラント。
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US20160374826A1 (en) | 2016-12-29 |
CN104023675B (zh) | 2016-08-10 |
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EP2793760B1 (en) | 2018-08-08 |
JP6126126B2 (ja) | 2017-05-10 |
AU2012355894B2 (en) | 2015-08-27 |
EP2793760A4 (en) | 2015-07-29 |
US20130158664A1 (en) | 2013-06-20 |
EP3403621A1 (en) | 2018-11-21 |
CN104023675A (zh) | 2014-09-03 |
JP2015500707A (ja) | 2015-01-08 |
JP6416304B2 (ja) | 2018-10-31 |
US9445919B2 (en) | 2016-09-20 |
EP2793760A1 (en) | 2014-10-29 |
EP3403621B1 (en) | 2021-12-29 |
US10195050B2 (en) | 2019-02-05 |
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