JP2001513361A - 拡開可能な椎骨間インプラント - Google Patents
拡開可能な椎骨間インプラントInfo
- Publication number
- JP2001513361A JP2001513361A JP2000506909A JP2000506909A JP2001513361A JP 2001513361 A JP2001513361 A JP 2001513361A JP 2000506909 A JP2000506909 A JP 2000506909A JP 2000506909 A JP2000506909 A JP 2000506909A JP 2001513361 A JP2001513361 A JP 2001513361A
- Authority
- JP
- Japan
- Prior art keywords
- intervertebral implant
- legs
- implant according
- guide cylinder
- implant
- 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
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
- A61F2/46—Special tools for implanting artificial joints
- A61F2/4601—Special tools for implanting artificial joints for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone 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
- A61F2/44—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
- A61F2/46—Special tools for implanting artificial joints
- A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4611—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
-
- 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
- A61F2/446—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 elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
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- 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
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- 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
-
- 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
- A61F2002/30537—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
-
- 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
- A61F2002/30537—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
- A61F2002/3054—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation about a connection axis or implantation axis for selecting any one of a plurality of radial orientations between two modular parts, e.g. Morse taper connections, at discrete positions, angular positions or continuous positions
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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
- 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
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
- A61F2002/30556—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting thickness
-
- 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
- A61F2002/30579—Special structural features of bone or joint prostheses not otherwise provided for with mechanically expandable devices, e.g. fixation devices
-
- 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
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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
- 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
- A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
-
- 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 for implanting artificial joints
- A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2002/4625—Special tools for implanting artificial joints 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 for implanting artificial joints 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
- 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
- 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
-
- A—HUMAN NECESSITIES
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- 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
- A61F2230/0017—Angular shapes
-
- A—HUMAN NECESSITIES
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- 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
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-
- A—HUMAN NECESSITIES
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- 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
- A61F2250/0009—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 thickness
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Neurology (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)
- Materials For Medical Uses (AREA)
Abstract
Description
る。この装置の欠点は、インプラントが、拡開装置と一体に構成されているので
、全体としてのみ椎骨間スペースに導入できるに過ぎず、導入のため、インプラ
ントを打込まなければならないという点にある。更に、公知の椎骨間インプラン
トは、連続的でなく拡開されるに過ぎず、従って、手術前の拡開角度の設計が不
正確になる。
段階において、椎骨間スペースにネジ込むことができ、第2段階において始めて
、インプラントに導入される拡開装置によって椎骨間スペース内で拡開される椎
骨間インプラントを創成することにある。拡開角度を手術前に設計できるよう、
この拡開は、無段でまたは制御して実施できなければならない。
によって解決される。
ジ)を備えている。雌ネジは、雌ネジに対応するネジ部を備えたシャフトを有す
る拡開装置(Spreizvorrichtung)によってインプラントを拡開(Aufspreizung)す
るのに役立つ。更に、案内シリンダの雄ネジは、雄ネジに対応するネジ部を備え
た中空シリンダ部を有する拡開装置によってインプラントを拡開するのに役立つ
。第2変更例に基づき、より大きい径によってより大きい張力を伝達できる。
管理が可能であるという利点がある。雌ネジに固定された案内ピンは、全手術中
、他の機器を摺動させるための補助案内手段として利用できる。この場合、手術
は、本質的に、3段階で行われる。これらの3段階は、ネジつきスリーブによる
インプラントのネジ込み、インプラントへの骨切片の充填および端板に対する椎
骨間スペースのインプラントの拡開からなる。更に、骨の成長を刺激する液状材
料またはゲル材料を椎骨間スペースに噴霧することからなる補足工程も考えられ
る。このため、穴の開いたネジ込み器具または骨切片挿入器具を使用できる。
対して本質的に平行に延びる案内リブを設ける。かくして、椎骨間スペースへの
インプラントの導入が容易となる。
に、U字状支持部材の双方の平面に、それぞれ、2つの脚を設けることができる
。この場合、各平面内の双方の脚の間に、骨を成長させるための自由空間が生ず
るよう、横材の端に脚を取付ける。
って延びるミゾを設ける。かくして、更に、椎骨間インプラントの拡開時に、(
手術前に計画した)所定の角度を設定できるという利点が得られる。
くリップを設ける。上記リップは、インプラントに充填した骨切片の滑落を阻止
する。
トにもとづき、下記各項を実現できるという点にある。 −患者の本来の脊椎前弯半径を患者に合わせて再現でき、上記角度を手術前に決
定できる。かくして、インプラントの内部に向かっての成長について最適な前提
条件が得られる; −打込操作の代わりに、インプラントをゆるやかに且つ管理してネジ込むことに
よって、非トラウマ的挿入技術を達成できる; −簡素化された(更に侵襲最少の)手術操作を達成できる;3段階手術操作は、
案内ピンによって管理される。
に説明する。
図であり; 図4は、図1の椎骨間インプラントのための、ネジを備えた拡開装置の斜視図
であり; 図5は、ネジ付スリーブを挿入した本発明に係る椎骨間インプラントの断面図
であり; 図6は、ネジ及び中空円筒形シャフトを有する改良スリーブの斜視図であり; 図7は、図6のスリーブを挿入した本発明に係る椎骨間インプラントの断面図
であり; 図8は、支持部材に骨切片を充填するための骨切片挿入器を部分的に導入した
本発明に係る椎骨間インプラントの断面図であり; 図9は、図8の骨切片挿入器の部分斜視図であり; 図10は、案内ピン上に押し込んだ導入装置によって支持部材にネジ込まれる
、図3の拡開装置を挿入した図1の本発明に係る椎骨間インプラントの断面図で
あり; 図11は、図10の導入装置の部分斜視図であり; 図12は、改善した(短縮した案内シリンダを有する)本発明に係る椎骨間イ
ンプラントおよび上記インプラントにネジ込んだ図4の拡開装置の縦断面図であ
り;および 図13は、拡開装置をネジ込んだ図12の椎骨間インプラントの正面図である
。
に固定した脚3,4を含む支持部材1の形を有する。脚3,4は、二つの本質的
に相互に平行に延び、横材2によって離隔された平面5,6に配置され、この横
材に関してこれら平面は対象であり、上記平面5,6は、支持面として、隣接の
椎体に当接する。
ジ28を有する中空案内シリンダ7を有する。脚3,4の内面25には、案内シ
リンダ7に対して横方向に延びるミゾ30が設けてある。脚3,4の外面24に
は、案内シリンダ7に対して本質的に平行に延びる案内リブ12が設けてある。
脚3,4は、更に、穴22を備え、脚の前部自由端には、内方へ向くリップ29
が設けてある。
けてあり、脚3,4は、横材2の端部に取付けてあり、かくして、各平面5,6
の双方の脚の間には自由空間23が生ずる。
材1の案内シリンダ7にめ込み得るスリーブ9を示した。このスリーブの径が、
支持部材1の高さ(平面5,6の間の距離)よりも幾分大きければ好ましい。支
持部材1に導入されたスリーブ9は、六角凹み34に導入された適切な器具によ
って案内シリンダ7のまわりに回転させることができ、椎骨間スペースに支持部
材1を導入するのに役立つ。スリーブ9は、脚3,4の外面24から幾分突出す
るので、雄ネジ10の一部は、隣接の椎体の骨材に係合し、かくして、支持部材
1を椎骨間スペース内に容易にネジ込むことができる。椎骨間スペースに支持部
材1を導入した後、案内シリンダ7から外へスリーブ9を同じく容易にネジって
引出すことができる。
装置11の2つの実施態様を示した。拡開部材18は、中央ボア19を有し且つ
脚3,4の間に導入される2つの突起21を側面に設置した直方体の形状を有す
る。拡開部材18は、更に、拡開部材18の把持、操作に役立つ2つの側部スリ
ット55を有する。
対応する雌ネジ27を有する中空円筒形ナット26を含む。ボア19は、ナット
26をストッパ45までボア内に導入できるよう構成されている。
44を有する頭部16および雄ネジ15を備えたシャフト20を有するネジ14
を含む。この場合、雄ネジ15は、案内シリンダ7の雌ネジ8と対応する。ネジ
14の頭部16は、−ナット26(図3)と同様−中央ボア19の内部のストッ
パ45に当接する。
、図12に示した如く、図1の場合の長さの概略1/2に短縮する必要がある。
詳細に説明する。
する。このため、−図5に示したごとく−雄ネジ10を備えたスリーブ9を案内
シリンダ7にはめ込む。雄ネジ10の第1ピッチが骨材に係合するまで、スリー
ブ9をはめ込んだU字状支持部材1を拡開した椎骨間スペース内に軽く打込む。
次いで、スリーブ9を更に回転してU字状支持部材1を椎骨間スペース内に所望
の深さまでネジ込む。この場合、スリーブ9の回転は、六角穴34に導入した回
転器具によって行うことができる。
シャフト46に固定し、導入器具の一部とする。導入器具を軸線方向へより良く
導入できるよう、あらかじめ、前端に雄ネジ32(図10)を備えた案内ピン3
1(図7)を支持部材1の案内シリンダ7の雌ネジ8にネジ込み、全手術時間中
、保持する。次いで、図6に示したスリーブ9は容易に中空円筒形シャフト46
により案内ピン31上を案内シリンダ7へはめ込まれ、そこで回転させることが
できる。
前記支持部材1が所望の方向から逸れるのを阻止する。
ダ7の表面とスリーブ9の内面との間には、実際上、摩擦はないので、スリーブ
9の引出操作中、支持部材1は、その位置を変えることはない。
を随意に続ける。このため、−骨切片挿入器33によって−骨切片47を自由空
間23に導入、圧縮する。図8に示した骨切片挿入器33は、−図8に示した如
く−脚3,4の間に部分的に導入して中空円筒形シャフト49に固定される平坦
な基部48からなる。骨切片挿入器33も案内ピン31を介して軸線方向へ案内
できる。
3,4との間に拡開装置11を導入する。さて、統合状態において(即ち、ボア
19にナット26を挿入した状態において)図3の拡開装置11を導入器具40
と双方の突起21によって脚3,4の間に導入する。
端に、ナット26の4つの駆動突起50を有する。このため、ナットには、対応
する4つの長ミゾ56が設けてあり、かくして、ナット26を回転できる。回転
スリーブ41は、スプライン付リング53によって保持スリーブ52に支持され
、前端に、拡開部材18の保持のために突起21の側部スリット55(図3)に
導入される2つの保持ピン54を有する。
代わりに)拡開装置11を使用する場合、−図12,13に示した如く−ネジ1
4のシャフト20は、そのネジ部15により中空案内シリンダ7の雌ネジ8に導
入される。この案内シリンダ7にネジ14をネジ込むと、−ボア19内にネジ頭
部16のストッパ45が設けてあるので−拡開部材18は軸線方向へ案内シリン
ダ7の方向へ摺動される。この場合、前記拡開部材18の突起21が、脚3,4
内に押込まれ、脚を拡開する。ネジ14を内側へ連続的に回転すれば、脚の平面
5,6が最大10−12°の角度αをなすまで脚3,4を拡開できる。ネジ14
の内側への回転は、頭部16の六角穴44に導入した器具によって行うことがで
きる。
視図である。
図である。
図である。
る。
図である。
た本発明に係る椎骨間インプラントの断面図である。
る、図3の拡開装置を挿入した図1の本発明に係る椎骨間インプラントの断面図
である。
インプラントおよび上記インプラントにネジ込んだ図4の拡開装置の縦断面図で
ある。
正面図である。
Claims (14)
- 【請求項1】 中央の横材(2)及び横材(2)に一体に固定した脚(3,
4)を含む支持部材(1)の形の椎骨間インプラントであって、前記脚(3,4
)が二つの本質的に相互に平行に延び、横材(2)によって離隔された平面(5
,6)に形成されており、支持面として隣接の椎体に当接できるものにおいて、
前記横材(2)が、前記脚(3,4)に対して本質的に平行に且つ上記脚の間に
延び、少なくとも1つのネジ部(8;28)を備えた中空案内シリンダ(7)を
有することを特徴とする椎骨間インプラント。 - 【請求項2】 前記中空案内シリンダ(7)が、雌ネジ(8)または雄ネジ
(28)のどちらかを有することを特徴とする請求項1に記載の椎骨間インプラ
ント。 - 【請求項3】 前記中空案内シリンダ(7)が、前記雌ネジ(8)および前
記雄ネジ(28)を有することを特徴とする請求項1に記載の椎骨間インプラン
ト。 - 【請求項4】 前記脚(3,4)の内面(25)には、前記案内シリンダ(
7)に対して横方向へ延びるミゾ(30)が設けてあることを特徴とする請求項
1〜3のいずれか1項に記載の椎骨間インプラント。 - 【請求項5】 前記脚(3,4)の外面(24)には、前記案内シリンダ(
7)に対して本質的に平行に延びる案内リブ(12)が設けてあることを特徴と
する請求項1〜4のいずれか1項に記載の椎骨間インプラント。 - 【請求項6】 前記脚(3,4)の外面(24)には、前記案内シリンダ(
7)に対して本質的に平行に延びる、特に杉綾形状または鋸歯形状の、横方向ミ
ゾが設けてあることを特徴とする請求項1〜4のいずれか1項に記載の椎骨間イ
ンプラント。 - 【請求項7】 前記脚(3,4)が、穴(22)を備えていることを特徴と
する請求項1〜6のいずれか1項に記載の椎骨間インプラント。 - 【請求項8】 前記2つの脚(3;4)が、それぞれU字状支持部材(1)
の双方の平面に設けてあり、各平面(5,6)の双方の前記脚(3,4)の間に
自由空間(23)が生ずるよう、前記脚(3,4)が前記横材(2)の端部に設
置してあることを特徴とする請求項1〜7のいずれか1項に記載の椎骨間インプ
ラント。 - 【請求項9】 前記横材(2)が、前記脚(3,4)に対して対称に配置さ
れていることを特徴とする請求項1〜8のいずれか1項に記載の椎骨間インプラ
ント。 - 【請求項10】 前記脚(3,4)の前部自由端には、内方へ向くリップ(
29)が設けてあることを特徴とする請求項1〜9のいずれか1項に記載の椎骨
間インプラント。 - 【請求項11】 前記椎骨間インプラントが、更に、前記案内シリンダ(7
)の前記雌ネジ(8)に固定できる案内ピン(31)を含むことを特徴とする請
求項1〜10のいずれか1項に記載の椎骨間インプラント。 - 【請求項12】 前記椎骨間インプラントが、更に、雄ネジ部(10)を含
み、前記案内シリンダ(7)にはめ込み得るスリーブ(9)を含むことを特徴と
する請求項1〜11のいずれか1項に記載の椎骨間インプラント。 - 【請求項13】 前記椎骨間インプラントが、更に、平面(5,6)と上記
平面に設けた前記脚(3,4)との間に導入できる、前記脚(3,4)のための
拡開装置(11)を含み、上記拡開装置が、前記雌ネジ(8)に対応するネジ部
(15)を備えたシャフト(20)を有するネジ(14)を有することを特徴と
する請求項1〜12のいずれか1項に記載の椎骨間インプラント。 - 【請求項14】 前記椎骨間インプラントが、更に、平面(5,6)と上記
平面に設けた前記脚(3,4)との間に導入できる、前記脚(3,4)のための
拡開装置(11)を含み、上記拡開装置が、雄ネジ(28)に対応する雌ネジ部
(27)を備えた中空円筒形ナット(26)を有することを特徴とする請求項1
〜12のいずれか1項に記載の椎骨間インプラント。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CH1997/000293 WO1999007312A1 (de) | 1997-08-06 | 1997-08-06 | Spreizbares zwischenwirbelimplantat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001513361A true JP2001513361A (ja) | 2001-09-04 |
| JP3947760B2 JP3947760B2 (ja) | 2007-07-25 |
Family
ID=4550888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000506909A Expired - Fee Related JP3947760B2 (ja) | 1997-08-06 | 1997-08-06 | 拡開可能な椎骨間インプラント |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6443990B1 (ja) |
| EP (1) | EP1001722B1 (ja) |
| JP (1) | JP3947760B2 (ja) |
| AR (1) | AR016591A1 (ja) |
| AU (1) | AU726872B2 (ja) |
| CA (1) | CA2299323C (ja) |
| DE (1) | DE59710823D1 (ja) |
| NO (1) | NO314565B1 (ja) |
| TW (1) | TW389686B (ja) |
| WO (1) | WO1999007312A1 (ja) |
| ZA (1) | ZA986803B (ja) |
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| ATE141149T1 (de) * | 1992-04-21 | 1996-08-15 | Sulzer Medizinaltechnik Ag | Künstlicher bandscheibenkörper |
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| ATE200409T1 (de) * | 1995-10-20 | 2001-04-15 | Synthes Ag | Zwischenwirbel-implantat mit käfig und rotationskörper |
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1997
- 1997-08-06 AU AU36179/97A patent/AU726872B2/en not_active Ceased
- 1997-08-06 DE DE59710823T patent/DE59710823D1/de not_active Expired - Fee Related
- 1997-08-06 CA CA002299323A patent/CA2299323C/en not_active Expired - Fee Related
- 1997-08-06 EP EP97932696A patent/EP1001722B1/de not_active Expired - Lifetime
- 1997-08-06 WO PCT/CH1997/000293 patent/WO1999007312A1/de not_active Ceased
- 1997-08-06 JP JP2000506909A patent/JP3947760B2/ja not_active Expired - Fee Related
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1998
- 1998-07-30 ZA ZA986803A patent/ZA986803B/xx unknown
- 1998-08-06 AR ARP980103886A patent/AR016591A1/es unknown
- 1998-08-27 TW TW087113163A patent/TW389686B/zh not_active IP Right Cessation
-
2000
- 2000-02-04 NO NO20000589A patent/NO314565B1/no unknown
- 2000-09-19 US US09/664,731 patent/US6443990B1/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018518243A (ja) * | 2015-05-14 | 2018-07-12 | グローバス メディカル インコーポレイティッド | 拡張可能な椎間インプラント及びその設置方法 |
| US10864087B2 (en) | 2015-05-14 | 2020-12-15 | Globus Medical, Inc. | Expandable intervertebral implants and methods of installation thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999007312A1 (de) | 1999-02-18 |
| WO1999007312A8 (de) | 1999-05-14 |
| AU726872B2 (en) | 2000-11-23 |
| CA2299323C (en) | 2003-12-23 |
| CA2299323A1 (en) | 1999-02-18 |
| NO20000589D0 (no) | 2000-02-04 |
| ZA986803B (en) | 1999-02-02 |
| JP3947760B2 (ja) | 2007-07-25 |
| NO314565B1 (no) | 2003-04-14 |
| AR016591A1 (es) | 2001-07-25 |
| TW389686B (en) | 2000-05-11 |
| EP1001722B1 (de) | 2003-10-01 |
| EP1001722A1 (de) | 2000-05-24 |
| US6443990B1 (en) | 2002-09-03 |
| NO20000589L (no) | 2000-04-05 |
| DE59710823D1 (de) | 2003-11-06 |
| AU3617997A (en) | 1999-03-01 |
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