JP5683026B2 - 自己ピボット式脊椎インプラント及び関連器具 - Google Patents
自己ピボット式脊椎インプラント及び関連器具 Download PDFInfo
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- JP5683026B2 JP5683026B2 JP2012537848A JP2012537848A JP5683026B2 JP 5683026 B2 JP5683026 B2 JP 5683026B2 JP 2012537848 A JP2012537848 A JP 2012537848A JP 2012537848 A JP2012537848 A JP 2012537848A JP 5683026 B2 JP5683026 B2 JP 5683026B2
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- post
- implant
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- rear wall
- opposing
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Images
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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
- A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
- A61F2002/30879—Ribs
-
- 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
- A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
- A61F2002/30891—Plurality of protrusions
- A61F2002/30892—Plurality of protrusions parallel
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- A—HUMAN NECESSITIES
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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
- 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
- A61F2002/4622—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 having the shape of a forceps or a clamp
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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
- A61F2/46—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
- A61F2002/4625—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
- A61F2002/4628—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 an axis transverse to the instrument axis or to the implantation direction, e.g. clamping
-
- 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
- A61F2220/0091—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
-
- 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
- A61F2230/0008—Rounded shapes, e.g. with rounded corners elliptical or oval
-
- 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
- A61F2230/0015—Kidney-shaped, e.g. bean-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
- 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
- A61F2250/0006—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 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
- 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
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
- A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers
-
- 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
- A61F2310/00017—Iron- or Fe-based alloys, e.g. stainless steel
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Neurology (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)
- Physical Education & Sports Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Description
110 挿入端部
115 係合端部
120、125 第1及び第2の対向する主表面
130 前壁及び後壁
135 スロット
180 ポスト
Claims (13)
- 椎間インプラントであって、
挿入端部及び対向する係合端部と、
それぞれの第1及び第2の椎骨端板と接触するように構成された第1及び第2の対向する主表面であって、この第1及び第2の主表面の各々が、前端部、及び後端部を形成し、かつ前記第1及び第2の対向する主表面の各々が、前記挿入端部及び係合端部の間に配置されている、前記第1及び第2の対向する主表面と、
前記第1及び第2の主表面の間に配置された前壁であって、前記前壁は前記第1及び第2の対向する主表面の前記前端部に沿って配置されている、前記前壁と、
前記第1及び第2の主表面の間に配置された後壁であって、前記後壁は前記第1及び第2の対向する主表面の前記後端部に沿って配置され、前記前壁及びこの後壁が、前記挿入端部及び係合端部において収束する前記後壁と、
前記係合端部において形成されたスロットであって、前記スロットは前記前壁及び後壁の間に少なくとも部分的にそれらに沿って連続的に配置されている、前記スロットと、
このスロット内に位置決めされたポストであって、前記ポストは、この前壁又は後壁の少なくとも一方から離間し、前記ポストは、前記第1及び第2の主表面の間に少なくとも部分的に配置され、このポストが複数の露出ファセットを形成し、前記複数の露出ファセットは前記ポストを挿入器具に回転可能に連結させるように前記挿入器具のファセットと相補的に係合するように形成されている、前記ポストと、
前記スロット内に配置され且つ前記ポストから離間されている当接面であって、前記当接面が、第1の部分と、前記第1の部分と接する第2の部分とを有し、前記第1の部分が前記第2の部分から角度的にずらされ、前記第1の部分及び前記第2の部分は、前記挿入器具が前記ポストと係合する時に、前記ポストを中心として椎間インプラントの回転を防ぐように、前記挿入器具の表面と接触するように形成されている、前記当接面と、
を有する椎間インプラント。 - 各前端部が、ほぼ凹状であり、各後端部が、ほぼ凸状である請求項1に記載の椎間インプラント。
- 前記第1及び第2の主表面の各々が複数の湾曲平行隆起部を有し、各々の湾曲平行隆起部は前記前壁及び後壁を通って延びる軸線に対して湾曲され、前記複数の湾曲平行隆起部がこのそれぞれの表面から突出し、且つ前記挿入端部から前記係合端部まで延び、この複数の湾曲平行隆起部の各々が、複数の歯を有する請求項2に記載の椎間インプラント。
- 前記前壁及び後壁は、前記係合端部に近い前記インプラントの第1の高さ及び前記挿入端部での第2の高さを定め、この第2の高さは、この第1の高さよりも低い請求項1に記載の椎間インプラント。
- 挿入方向に沿って第1の椎骨端板及び第2の椎骨端板の間に挿入されるように形成されている椎間インプラントであって、
挿入端部及び前記椎間インプラントが前記第1の椎骨端板及び前記第2の椎骨端板の間に配置されるとき前記挿入方向に沿って前記挿入端部から離間される対向する係合端部と、
前記第1の椎骨端板及び前記第2の椎骨端板のそれぞれと接触するように構成された第1及び第2の対向する主表面であって、この第1及び第2の主表面の各々が、前端部、及び後端部を形成し、前記第1及び第2の対向する主表面が、前記挿入端部及び係合端部の間に配置され、各前端部が、この係合端部に近いほぼ線形部分を有し、各前端部が、ほぼ凹状部分を有し、各後端部が、この係合端部に近いほぼ線形部分を有し、各後端部が、ほぼ凸状部分を有し、この前端部のこのほぼ線形部分が、この第1及び第2の主表面の各々に対してこの係合端部でこの後端部のこのほぼ線形部分に収束する前記第1及び第2の対向する主表面と、
前記第1及び第2の主表面の間に配置された前壁であって、前記前壁は前記第1及び第2の対向する主表面の前記前端部に沿って配置された、前記前壁と、
前記第1及び第2の主表面の間に配置された後壁であって、前記後壁は前記第1及び第2の対向する主表面の前記後端部に沿って配置され、前記前壁及び前記後壁が、前記挿入端部及び係合端部において収束する前記後壁と、
前記係合端部において形成されたスロットであって、前記スロットは、(1)前記前壁から前記後壁まで連続的に配置され、且つ(2)前記挿入端部に向かって少なくとも部分的に前記前壁及び前記後壁に沿って配置されている、前記スロットと、
このスロット内に位置決めされたポストであって、前記ポストは、この前壁及び後壁の少なくとも一方から離間し、前記ポストは、前記第1及び第2の主表面の間に少なくとも部分的に配置され、前記ポストは、前記第1の主表面から及び第2の主表面に向かって延び且つ前記挿入方向と垂直である方向に沿って所定長さに形成され、前記ポストは、さらに、前記ポストが前記挿入器具に回転可能に連結されるように構成されるように構成された複数の露出ファセットを形成し、前記複数のファセットのうち第1ファセットは、前記ポストのほぼ全体の長さに沿って延びる平坦面として形成される、前記ポストと、
を有する椎間インプラント。 - 各前端部が、ほぼ凹状であり、各後端部が、ほぼ凸状である請求項5に記載の椎間インプラント。
- 前記第1及び第2の主表面の各々が、複数の湾曲平行隆起部を有し、各々の湾曲平行隆起部は前記前壁及び前記後壁を通って延びる軸線に対して湾曲され、前記複数の湾曲平行隆起部はこのそれぞれの表面から突出し、さらに前記挿入端部から前記係合端部まで延び、前記複数の湾曲平行隆起部の各々が、複数の歯を有する請求項6に記載の椎間インプラント。
- 前記前壁及び前記後壁は、前記係合端部に近い前記インプラントの第1の高さ及び前記挿入端部での第2の高さを定め、この第2の高さは、この第1の高さよりも低い請求項5に記載の椎間インプラント。
- 椎間インプラントであって、
挿入端部及び対向する係合端部と、
それぞれの第1及び第2の椎骨端板と接触するように構成された第1及び第2の対向する主表面であって、この第1及び第2の主表面の各々が、前端部、及び後端部を形成し、かつ前記第1及び第2の対向する主表面の各々が、前記挿入端部及び係合端部の間に配置され、各前端部が、ほぼ凹状であり、各後端部が、ほぼ凸状である、前記第1及び第2の対向する主表面と、
前記第1及び第2の主表面の間に配置された前壁であって、前記前壁は前記第1及び第2の対向する主表面の前記前端部に沿って配置されている、前記前壁と、
前記第1及び第2の主表面の間に配置された後壁であって、前記後壁は前記第1及び第2の対向する主表面の前記後端部に沿って配置され、前記前壁及びこの後壁が、前記挿入端部及び係合端部において収束する前記後壁と、
前記係合端部において形成されたスロットであって、前記スロットは前記前壁及び後壁の間を少なくとも部分的にそれらに沿って連続的に配置されている、前記スロットと、
このスロット内に位置決めされたポストであって、前記ポストは、この前壁及び後壁から離間し、前記ポストは、前記第1及び第2の主表面の間に少なくとも部分的に配置され、このポストが、複数のファセットを形成し、これらファセットが前記ポストの周囲全体の周りに配置され、前記ファセットは、前記ポストが前記挿入器具に連結されるべく形成されるように形成される、前記ポストと、
前記スロット内に配置された第1の当接面及び第2の当接面であって、前記第1の当接面及び前記第2の当接面が前記ポストから離間され、前記第1の当接面及び前記第2の当接面はほぼ線形であり、前記第1の当接面は、前記第2の当接面から角度的にずらされ、前記第1の当接面及び前記第2の当接面はゼロ度でない角度を形成することを満たす、前記第1の当接面及び前記第2の当接面と、を有し、
前記ポストが前記挿入器具と係合する時に、前記ポストを中心とする第1の方向の椎間インプラントのさらなる回転を防ぐように、前記第1の当接面は、前記挿入器具の第1面と接触するように形成され、前記ポストが前記挿入器具と係合する時に、前記ポストを中心として前記第1の方向と反対の第2の方向の椎間インプラントのさらなる回転を防ぐように、前記第2の当接面は、前記挿入器具の第2面と接触するように形成される、
椎間インプラント。 - 前記第1及び第2の主表面の各々が、複数の湾曲平行隆起部を有し、各々の湾曲平行隆起部は前記前壁及び前記後壁を通って延びる軸線に対して湾曲され、前記複数の湾曲平行隆起部はこのそれぞれの表面から突出し、さらに前記挿入端部から前記係合端部まで延びる複数の湾曲平行隆起部を有し、この複数の平行隆起部の各々が、複数の歯を有する請求項9に記載の椎間インプラント。
- 前記前壁及び後壁は、前記係合端部に近い前記インプラントの第1の高さ及び前記挿入端部での第2の高さを定め、この第2の高さは、この第1の高さよりも低い請求項9に記載の椎間インプラント。
- さらに、1)前記前端部と前記後端部との間、及び2)前記第1の主表面と前記第2の主表面との間に配置されたボアと、
複数のマーカであって、このマーカの少なくとも1つが、前記前壁又は後壁のうちの一方の内部で前記第1及び第2の主表面の間に配置され、このマーカの少なくとも1つの他のものが、このマーカの前記少なくとも1つに対してほぼ横断方向に配置され、前記マーカの少なくとも1つの他のものが前記挿入端部から前記ボアに向けて1つの方向に細長く延びる前記複数のマーカと、
を有する、請求項1に記載の椎間インプラント。 - 患者の隣接する椎体の第1及び第2の端板の間に配置された椎間腔における脊椎手術のためのシステムであって、このシステムが、
(a)(i)挿入端部及び対向する係合端部と、
(ii)それぞれの隣接する椎骨端板と接触するように構成された第1及び第2の対向する主表面であって、この第1及び第2の主表面の各々が、前縁、後縁を有し、かつ前記挿入端部及び係合端部の間を延びる前記第1及び第2の対向する主表面と、
(iii)前記第1及び第2の主表面の間にその前記前縁に沿って形成された前壁と、 (iv)前記第1及び第2の主表面の間にその前記後縁に沿って形成された後壁であって、前記前壁及びこの後壁が、前記挿入端部及び係合端部において収束する前記後壁と、 (v)前記係合端部において形成され、かつ前記前壁及び後壁の間を少なくとも部分的にそれらに沿って連続的に延びるスロットであって、ポストが、このスロット内に位置決めされ、前記前壁及び後壁のうちの少なくとも一方から離間し、かつ前記第1及び第2の主表面の間を少なくとも部分的に延び、このポストが、複数の露出ファセットを有する前記スロットと、
を有する椎間インプラントと、
(b)(i)挿入端部及び対向する係合端部と、
(ii)それぞれの隣接する椎骨端板と接触するように構成された第1及び第2の対向する主表面であって、この第1及び第2の主表面の各々が、前縁、後縁を有し、かつ前記挿入端部及び係合端部の間を延びる前記第1及び第2の対向する主表面と、
(iii)前記第1及び第2の主表面の間にその前記前縁に沿って形成された前壁、
(iv)前記第1及び第2の主表面の間にその前記後縁に沿って形成された後壁であって、前記前壁及びこの後壁が、前記挿入端部及び係合端部において収束する前記後壁と、 (v)前記係合端部において形成され、かつ前記前壁及び後壁の間を少なくとも部分的にそれらに沿って連続的に延びるスロットであって、ポストが、このスロット内に位置決めされ、前記前壁及び後壁のうちの少なくとも一方から離間し、かつ前記第1及び第2の主表面の間を少なくとも部分的に延び、このポストが、複数の露出ファセットを有する前記スロットと、
を有する試行インプラントと、
(c)(i)近位端、遠位端、及びそれらの間の縦軸線と、
(ii)内側部材及び外側部材であって、この内側部材が、この外側部材に対して前記縦軸線に沿って平行移動可能であり、かつ前記遠位端で把持部分を有し、この把持部分が、前記椎間インプラント及び前記試行インプラントの前記複数のポストファセットと係合可能な複数のファセット面を有する前記内側部材及び外側部材と、を有する挿入器具、を有し、
前記器具は、前記把持部分が、前記椎間インプラント及び前記試行インプラントのうちの一方の前記ポストへのこの器具の連結を可能にするための開放構成を取る第1の構成と、この器具が、このポストが所定の力の下でこの把持部分内で回転することを可能にしながら、この椎間インプラント及びこの試行インプラントのうちの一方のこのポストに確実に連結される第2の構成と、この器具が、この把持部分に対するこのポストの回転を防止しながら、この椎間インプラント及びこの試行インプラントのうちの一方のこのポストに確実に連結される第3の構成とを有する、システム。
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