JP2011520580A - 椎間インプラントおよび設置器具 - Google Patents
椎間インプラントおよび設置器具 Download PDFInfo
- Publication number
- JP2011520580A JP2011520580A JP2011511107A JP2011511107A JP2011520580A JP 2011520580 A JP2011520580 A JP 2011520580A JP 2011511107 A JP2011511107 A JP 2011511107A JP 2011511107 A JP2011511107 A JP 2011511107A JP 2011520580 A JP2011520580 A JP 2011520580A
- Authority
- JP
- Japan
- Prior art keywords
- implant
- expansion
- intervertebral
- main body
- casing
- 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
Links
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- A61F2002/30594—Special structural features of bone or joint prostheses not otherwise provided for slotted, e.g. radial or meridian slot ending in a polar aperture, non-polar slots, horizontal or arcuate slots
-
- 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
- A61F2002/30316—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
- A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
-
- 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
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30649—Ball-and-socket joints
- A61F2002/30663—Ball-and-socket joints multiaxial, e.g. biaxial; multipolar, e.g. bipolar or having an intermediate shell articulating between the ball and the socket
-
- 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
- A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
- A61F2002/443—Intervertebral or spinal discs, e.g. resilient made of articulated components having two transversal endplates and at least one intermediate component
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—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
- 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
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—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
- A61F2002/4629—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 connected to the endoprosthesis or implant via a threaded connection
-
- 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
-
- 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
-
- 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
- A61F2230/0071—Three-dimensional shapes spherical
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0004—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable
- A61F2250/0007—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable for adjusting length
-
- 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
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Neurology (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Oral & Maxillofacial Surgery (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)
- Physical Education & Sports Medicine (AREA)
- Prostheses (AREA)
Abstract
Description
Claims (44)
- 2つの椎骨間の最低限の距離を確保する椎間インプラントであって、
各々が外表面と、該外表面に対して斜めに向けられた接触面とを有する、互いに向かい合う1対の本体部であって、前記各本体部が、少なくとも1つの隆起構造と、該隆起構造に隣接して位置する少なくとも1つの隙間とを有し、前記隆起構造が、前記本体部の前記接触面の少なくとも一部を形成する頂面を形成し、各本体部の前記隆起構造は、前記各本体部の前記接触面が前記本体部同士の間に内部くさび構造を形成するように、他方の本体部のそれぞれの前記隙間に挿入可能である、1対の本体部と、
ヘッド部およびラム部材を有する拡張部材であって、該拡張部材は、前記ヘッド部が前記本体部の前記接触面に対向するように位置するように、前記本体部同士の間に少なくとも部分的に挿入可能であり、前記ラム部材は、前記ヘッド部が前記内部くさび構造に向かって移動することで前記本体部同士が分離し、それによって前記インプラントの高さが高くなるように、前記ヘッド部を前記接触面に向けて押すように動作可能である、拡張部材と、
を有しているインプラント。 - 前記インプラントの長手方向軸を横切る方向への前記拡張部材の前記ヘッド部の移動を防止する閉じ込めケーシングをさらに有している、請求項1に記載のインプラント。
- 前記閉じ込めケーシングは、前記ラム部材の少なくとも一部を内部に受け入れるように構成されたチャネルを有している、請求項2に記載のインプラント。
- 前記閉じ込めケーシングは、前記チャネルの遠位側に位置する端部にあるふたと、前記ふたと前記チャネルの間に介在するコンパートメントと、を有する細長い本体を有し、前記コンパートメントは、前記ふたと前記チャネルの端部の中間を延びる1対の側壁によって少なくとも部分的に形成され、前記コンパートメントは、前記本体部を少なくとも部分的に内部に受け入れるように構成されている、請求項3に記載のインプラント。
- 前記チャネルにはねじ山が設けられ、前記ラム部材は、その外表面に沿って延びる少なくとも1つのねじ部を有し、前記ラム部材は、前記閉じ込めケーシングの前記チャネルと螺合によって係合するように構成されている、請求項3に記載のインプラント。
- 前記ケーシングは、前記ケーシングの近位端に位置する1つまたは複数の係合面を有し、前記係合面は、拡張器具の少なくとも一部に対する前記インプラントの回転姿勢を維持するように前記拡張器具に係合するように構成されている、請求項2に記載のインプラント。
- 前記ラム部材は、前記インプラントの長手方向に平行な方向に移動して、前記ヘッド部を前記本体部の前記接触面に向けて押す、請求項1に記載のインプラント。
- 前記本体部同士の間を延びる回復部材をさらに有している、請求項1に記載のインプラント。
- 前記回復部材は弾性を有するメッシュであり、前記本体部を少なくとも部分的に囲む、請求項8に記載のインプラント。
- 前記回復部材は弾性ゴムバンドを含む、請求項8に記載のインプラント。
- 前記インプラントの拡張を制限する拡張制限システムをさらに有している、請求項1に記載のインプラント。
- 前記拡張制限システムは、一方の本体部上に形成され、前記本体部同士の間の相対的な垂直運動を制限するように、他方の本体部上に形成された端部キャップに干渉する突起を含む、請求項11に記載のインプラント。
- 前記本体部の前記外表面は、該外表面の、互いに隣接する複数の椎骨との骨結合を促進する1つまたは複数の突起を有している、請求項1に記載のインプラント。
- 前記拡張部材は、該拡張部材を回転させる拡張器具と係合する1つまたは複数の係合構造を有している、請求項1に記載のインプラント。
- 前記拡張部材は、拡張器具と係合して、前記拡張部材の回転時に前記拡張部材を前記拡張器具に対して所与の軸方向位置に維持するねじ付きくぼみを有する、請求項14に記載のインプラント。
- 2つの椎骨間の最低限の距離を確保する椎間インプラントであって、
第1の外表面と第1の接触面とを有する第1の本体部であって、少なくとも1つの隆起構造と、該隆起構造に隣接して位置する少なくとも1つの隙間とを有する第1の本体部と、
第2の外表面と、前記第1の外表面に対して斜めに向けられた第2の接触面とを有する第2の本体部であって、前記第2の本体部は、少なくとも1つの隆起構造と、該隆起構造に隣接して位置する少なくとも1つの隙間とを有し、前記隆起構造は、前記本体部の前記第2の接触面の少なくとも一部を形成する頂面を形成し、前記各本体部の前記接触面が前記第1の本体部と前記第2の本体部との間に内部くさび構造を形成するように、前記第1の本体部の各隆起構造は、前記第2の本体部のそれぞれの前記隙間に挿入可能であり、前記第2の本体部の各隆起構造は、前記第1の本体部のそれぞれの前記隙間に挿入可能である、第2の本体部と、
ヘッド部およびラム部材を有する拡張部材であって、該拡張部材は、前記ヘッド部が前記第1および第2の接触面に対向するように位置するように、前記第1の本体部と前記第2の本体部の間に少なくとも部分的に挿入可能であり、前記ラム部材は、前記ヘッド部が前記内部くさび構造に向かって移動することで前記第1の本体部が前記第2の本体部から分離し、それによって前記インプラントの高さが高くなるように、前記ヘッド部を前記第1および第2の接触面に向けて押すように動作可能である、拡張部材と、
を有しているインプラント。 - 前記第1の本体部の前記第1の接触面は、前記第1の外表面に対して斜めに向けられている、請求項16に記載のインプラント。
- 前記拡張部材の前記ヘッド部は、前記ラム部材と別個に形成されている、請求項16に記載のインプラント。
- 前記拡張部材の前記ヘッド部は概ね球形の部材である、請求項18に記載のインプラント。
- 前記拡張部材の前記ヘッド部は、前記インプラントに衝撃吸収機能を持たせるように弾性変形可能である、請求項16に記載のインプラント。
- 前記ヘッド部は、ナイロンとテフロン(登録商標)のうちの一方から製造されている、請求項20に記載のインプラント。
- 前記ヘッド部は、前記インプラントの衝撃吸収機能を向上させる少なくとも1つのキャビティを有している、請求項20に記載のインプラント。
- 前記拡張部材は、前記拡張部材を回転させるように拡張器具に係合する1つまたは複数の係合構造を有している、請求項16に記載のインプラント。
- 前記拡張部材は、拡張器具と係合して、前記拡張部材の回転時に前記拡張部材を前記拡張器具に対して所与の軸方向位置に維持するねじ付きくぼみを有している、請求項23に記載のインプラント。
- チャネルと、該チャネルと閉じ込めケーシングの遠位端との中間を延びるコンパートメントと、を有する前記閉じ込めケーシングをさらに有し、前記チャネルは、ラム部材の少なくとも一部を内部に受け入れるように構成されており、前記コンパートメントは、前記ケーシングの前記遠位端と前記チャネルとの中間を延びる1対の側壁によって少なくとも部分的に形成されており、前記コンパートメントは、前記本体部を少なくとも部分的に内部に受け入れるように構成されており、前記閉じ込めケーシングは、前記本体部を垂直方向に揃え、前記インプラントの長手方向軸を横切る方向への前記拡張部材の移動を防止するように構成されている、請求項16に記載のインプラント。
- 前記チャネルにはねじ山が設けられ、前記ラム部材は、その外表面に沿って延びる少なくとも1つのねじ部を有し、前記ラム部材は、前記閉じ込めケーシングの前記チャネルと螺合によって係合するように構成されている、請求項25に記載のインプラント。
- 前記ケーシングは、該ケーシングの近位端に配置された1つまたは複数の係合面を有し、前記係合面は、拡張器具と係合して、前記拡張器具の少なくとも一部に対する前記インプラントの回転姿勢を維持するように構成されている、請求項25に記載のインプラント。
- インプラント用の設置器具であって、
把持部材と、該把持部材から延びている細長い管状部材とを有するハンドル部材であって、前記管状部材は、中空の穴と、前記管状部材の遠位端に配置された係合部とを有し、前記係合部は、椎間インプラントの近位端の少なくとも一部で係合して前記管状部材に対する前記インプラントの回転姿勢を維持する1つまたは複数の突起を有している、ハンドル部材と、
第1のノブと、該第1のノブから延びている作動部材とを有する第1の回転部材であって、前記作動部材は、中空の穴と、前記管状部材の遠位端に配置された回転コネクタとを有し、前記作動部材は、前記回転コネクタが前記管状部材の前記係合部に隣接して位置して前記インプラントの拡張部材に係合し前記拡張部材を回転させて前記インプラントを拡張または収縮させるように、前記ハンドル部材の前記管状部材の前記中空の穴内に嵌合するように構成されている、第1の回転部材と、
第2のノブと、該第2のノブから延びている保持部材とを有する第2の回転部材であって、前記保持部材は、その遠位端に配置された締結部を有し、前記保持部材が前記第1の回転部材の前記作動部材の前記回転コネクタに隣接して位置し、前記インプラントの前記拡張部材に係合して、前記拡張部材の回転時に前記ハンドル部材に対する前記インプラントの軸方向位置を維持するように、前記保持部材は、前記第1の回転部材の前記作動部材の前記中空の穴内に嵌合するように構成されている、第2の回転部材と、
を有している設置器具。 - 前記ハンドル部材の前記管状部材の前記係合部は1対の突起を有している、請求項28に記載の器具。
- 前記1対の突起は、該突起同士の間に前記インプラントを挿入できるように、前記管状部材の両側に配置されている、請求項29に記載の器具。
- 前記第1の回転部材の前記作動部材の前記回転コネクタは、前記インプラントの前記拡張部材の長穴に受け入れられるように構成された1対の直線状突起を含む、請求項28に記載の器具。
- 前記作動部材の前記管状部材と前記保持部材は、概ね円筒状の外形を有している、請求項28に記載の器具。
- 前記第2の回転部材の前記保持部材は、前記保持部材が前記ラム部材に係合するときに前記インプラントの前記拡張部材を前記第1の回転部材の前記作動部材の方へ引き出すように構成されている、請求項28に記載の器具。
- 前記保持部材の前記締結部には、前記インプラントの前記ラム部材と螺合によって係合するようにねじ山が設けられている、請求項33に記載の器具。
- 拡張可能な椎間インプラントを移植する方法であって、
椎間板への経路を拡張することと、
椎間板の核を除去して椎間板腔を形成することと、
前記椎間板腔内から椎骨端板を削り取ることと、
椎間インプラントを前記椎間板腔内で拡開させることと、
を含む方法。 - 前記拡張するステップは、
前記椎間板に針を挿入することと、
前記針を介して前記椎間板に第1の拡張器を挿入することと、
前記針を取り出すことと、
前記第1の拡張器を介して前記椎間板に第2の拡張器を挿入することと、
前記第1の拡張器を取り出すことと、
を含む、請求項35に記載の方法。 - 前記第2の拡張器を介して、椎間スペースに隣接する位置に第1の作業スリーブを挿入することと、
前記第2の拡張器を取り出すことと、
をさらに含む、請求項36に記載の方法。 - 前記第1の作業スリーブを介して、前記椎間スペースに隣接する位置に第2の作業スリーブを挿入することと、
前記第1の作業スリーブを取り出すことと、
をさらに含む、請求項37に記載の方法。 - 前記核を取り除くステップは、トレフィン器具を使用することを含む、請求項35に記載の方法。
- 前記核を取り除くステップは、パンチ器具を使用することをさらに含む、請求項39に記載の方法。
- 拡張後に前記椎間板に穴を開けることをさらに含む、請求項35に記載の方法。
- 前記穴を開けるステップは、前記椎骨端板に穴を形成することをさらに含む、請求項41に記載の方法。
- 前記削り取るステップは、前記椎間板にラスプを挿入して、前記椎間板腔内から前記椎骨端板を削り取ることを含む、請求項35に記載の方法。
- 前記インプラントを拡開するステップは、前記インプラントを、高さが約9mmから約12.5mmになるように拡張することを含む、請求項35に記載の方法。
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Also Published As
Publication number | Publication date |
---|---|
EP2331023A2 (en) | 2011-06-15 |
JP5356509B2 (ja) | 2013-12-04 |
ES2361099B1 (es) | 2012-05-08 |
US20090292361A1 (en) | 2009-11-26 |
WO2009147527A3 (en) | 2010-06-03 |
ES2361099A1 (es) | 2011-06-14 |
WO2009147527A2 (en) | 2009-12-10 |
US20110130838A1 (en) | 2011-06-02 |
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