JP7753366B2 - 繋留型椎間インプラント - Google Patents
繋留型椎間インプラントInfo
- Publication number
- JP7753366B2 JP7753366B2 JP2023537106A JP2023537106A JP7753366B2 JP 7753366 B2 JP7753366 B2 JP 7753366B2 JP 2023537106 A JP2023537106 A JP 2023537106A JP 2023537106 A JP2023537106 A JP 2023537106A JP 7753366 B2 JP7753366 B2 JP 7753366B2
- Authority
- JP
- Japan
- Prior art keywords
- spacer
- screw
- bone
- locking
- interbody
- 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.)
- Active
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
- A61F2/30721—Accessories
- A61F2/30749—Fixation appliances for connecting prostheses to the body
-
- A—HUMAN NECESSITIES
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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
- A61F2/44—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
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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
- A61F2/44—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
- A61F2/447—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 substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
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- A—HUMAN NECESSITIES
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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
- 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
- A61F2002/30159—Concave polygonal shapes
- A61F2002/30161—Concave polygonal shapes arrow-shaped
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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
- 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
- A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
-
- A—HUMAN NECESSITIES
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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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
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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
- 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
- A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
- A61F2002/30387—Dovetail connection
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- A—HUMAN NECESSITIES
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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
- 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
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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
- 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
- A61F2002/30471—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
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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
- 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
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
-
- 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
- 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
- A61F2002/30476—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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- 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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- 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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- A61F2002/30535—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
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- 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
- A61F2002/30553—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting a position by translation along an axis
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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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- 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
- A61F2002/30624—Hinged joint, e.g. with transverse axle restricting the movement
-
- 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
- A61F2002/30904—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves serrated profile, i.e. saw-toothed
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Neurology (AREA)
- Vascular Medicine (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Cardiology (AREA)
- Prostheses (AREA)
Description
本願は、2020年12月16日に出願された米国特許仮出願第63/126,253号及び2021年4月16日に出願された米国特許仮出願第63/176,168号の優先権及び権益主張出願である。上述の米国特許仮出願の各々を参照により引用し、その記載内容全体を本明細書の一部とする。
拡張可能な椎体間スペーサを含み、
ロック用プレート組立体を含み、ロック用プレート組立体は、
各々が骨ねじ山付き部分及び骨ヘッドを備えた1本以上の骨ねじと、
椎体間スペーサの一部分に取り付けられると共に、椎骨の椎体の側部に装着されるよう構成された椎骨取り付けプレートとを含み、椎骨取り付けプレートは、1本以上の骨ねじを受け入れるよう構成された1つ以上の貫通穴を有し、
ロック用プレート組立体を椎体間スペーサに結合するよう構成されたロック用ねじを含み、ロック用ねじは、
椎体間スペーサに係合するよう構成されたロック用ねじ山付き部分、及び
ねじ頭を有することを特徴とする脊柱システムが提供される。
拡張可能な椎体間スペーサを第1の椎体と第2の椎体との間に挿入するステップと、
1本以上の骨ねじを第1の椎体及び/又は第2の椎体に結合して椎骨取り付けプレートを第1の椎体及び/又は第2の椎体の側部に当てて結合するステップと、
椎体間スペーサを拡張させた後にロック用ねじを用いて椎骨取り付けプレートを椎体間スペーサに結合するステップとを含むことを特徴とする方法が提供される。
スペーサを第1の椎体と第2の椎体との間に挿入するステップを含み、スペーサは、
第1の上側本体及び第1の下側本体を備えた第1の支持部材、ならびに第2の支持部材と、
第1の端部及び第2の端部ならびに第1の端部と第2の端部との間に延びる第1の軸線と、
スペーサの第1の端部のところに配置されかつ第1及び第2の支持部材に連結された第1の端部本体及びスペーサの第2の端部のところに配置されかつ第1及び第2の支持部材に連結された第2の端部本体と、
複数の個々のリンクとを有し、各リンクは、端部本体のうちの1つを第1及び第2の支持部材のうちの一方に直接連結し、
第1の上側本体及び第1の下側本体の各々は、第2の凹部と連絡状態にある第1の凹部を有し、傾斜部が第1凹部と第2の凹部を互いに連結し、
第1の軸線に沿う軸方向力の加力を行うステップを含み、軸方向力は、第1の支持部材を第1の方向に沿って第2の支持部材から遠ざけると共に、第1の上側本体を第2の方向に沿って第1の下側本体から遠ざけ、第1の方向は、第1の軸線に垂直であり、第2の方向は、第1の軸線及び第1の方向に垂直であり、
第1の端部本体を第1の軸線に沿って第2の端部本体に向かって引き寄せてスペーサを拡張させるステップを含み、
個々のリンクの各々をこのリンクが連結されている端部本体に対して横方向外方に回転させて第1の支持部材を拡張させてこの第1の支持部材を第1の方向に沿って第2の支持部材から遠ざけるステップを含み、
個々のリンクのうちの少なくとも1つを傾斜部に沿って第1の凹部から第2の凹部中に押し込んで上側本体を拡張させてこの上側本体を第2の方向に沿って下側本体から遠ざけるステップを含み、
ロック用プレート組立体を拡張後のスペーサに取り付けるステップを含み、ロック用プレート組立体は、
骨ねじ山付き部分及び骨ヘッドを有する1本以上の骨ねじと、
1本以上の骨ねじの骨ねじ山付き部分を受け入れるよう構成された1つ以上の貫通穴を有するプレートとを含むことを特徴とする方法が提供される。
スペーサをロック用プレート組立体と一体化するステップを含み、スペーサは、
第1の上側本体及び第1の下側本体を備えた第1の支持部材、ならびに第2の支持部材と、
第1の端部及び第2の端部ならびに第1の端部と第2の端部との間に延びる第1の軸線と、
スペーサの第1の端部のところに配置されかつ第1及び第2の支持部材に連結された第1の端部本体及びスペーサの第2の端部のところに配置されかつ第1及び第2の支持部材に連結された第2の支持部材と、
複数の個々のリンクとを有し、各リンクは、端部本体のうちの1つを第1及び第2の支持部材のうちの一方に直接連結し、
第1の上側本体及び第1の下側本体の各々は、第2の凹部と連絡状態にある第1の凹部を有し、傾斜部が第1凹部と第2の凹部を互いに連結し、
ロック用プレート組立体は、
1つ以上の貫通穴の備えたプレートと、
ねじ頭を備えたロック用ねじと、
1つ以上の貫通穴中に挿入される1本以上の骨ねじとを含み、
一体化スペーサ・ロック用プレート組立体を脊柱の一部分の第1の椎体と第2の椎体との間に挿入するステップを含み、
第1の軸線に沿う軸方向力の加力を行うステップを含み、軸方向力は、第1の支持部材を第1の方向に沿って第2の支持部材から遠ざけると共に、第1の上側本体を第2の方向に沿って第1の下側本体から遠ざけ、第1の方向は、第1の軸線に垂直であり、第2の方向は、第1の軸線及び第1の方向に垂直であり、
第1の端部本体を第1の軸線に沿って第2の端部本体に向かって引き寄せてスペーサを拡張させるステップを含み、
個々のリンクの各々をこのリンクが連結されている端部本体に対して横方向外方に回転させて第1の支持部材を拡張させてこの第1の支持部材を第1の方向に沿って第2の支持部材から遠ざけるステップを含み、
個々のリンクのうちの少なくとも1つを傾斜部に沿って第1の凹部から第2の凹部中に押し込んで上側本体を拡張させてこの上側本体を第2の方向に沿って下側本体から遠ざけるステップを含むことを特徴とする方法が提供される。
第1の骨ねじ開口部を備えた第1の拡張可能な支持部材を有し、
第2の拡張可能な支持部材を有し、
少なくとも1つの拡張組立体を有し、少なくとも1つの拡張組立体は、第1の拡張な支持部材と第2の拡張可能な支持部材を側方に離すと共に、垂直方向に拡張して椎間スペーサが側方にかつ垂直方向に拡張した形態に自動的にロックするようになっており、
椎間スペーサが側方かつ垂直方向に拡張した形態にロックされたときに第1の骨ねじ開口部を通って挿入可能な少なくとも1本の骨ねじを有し、骨ねじは、第1及び第2の椎体のうちの一方の中に延びて椎間スペーサを患者の脊柱に繋留するよう構成されていることを特徴とする椎間スペーサが提供される。
椎間スペーサを第1の椎体と第2の椎体との間に挿入するステップを含み、椎間スペーサは、第1の拡張可能な支持部材及び第2の拡張可能な支持部材を有し、
力をスペーサに加えて第1及び第2の拡張可能な支持部材の多方向拡張を可能にするよう椎間スペーサを側方に拡張するステップを含み、
少なくとも1つのアンカー要素を多方向に拡張した椎間スペーサの一部分に通して第1及び第2の椎体のうちの一方中に挿入し、それにより多方向に拡張した椎間スペーサを患者の脊柱に繋留するステップを含むことを特徴とする方法が提供される。
Claims (21)
- 脊柱の椎体相互間への植え込み可能な脊柱システムであって、前記脊柱システムは、
水平方向及び垂直方向の両方向に拡張可能な椎体間スペーサを含み、
ロック用プレート組立体を含み、前記ロック用プレート組立体は、
各々が骨ねじ山付き部分及び骨ヘッドを備えた1本以上の骨ねじと、
前記椎体間スペーサの一部分に取り付けられると共に、椎骨の椎体の側部に装着されるよう構成された椎骨取り付けプレートとを含み、前記椎骨取り付けプレートは、1本以上の骨ねじを受け入れるよう構成された1つ以上の貫通穴を有し、
前記ロック用プレート組立体を前記椎体間スペーサに結合するよう構成されたロック用ねじを含み、前記ロック用ねじは、
前記椎体間スペーサに係合するよう構成されたロック用ねじ山付き部分、及び
ねじ頭を有する、脊柱システム。 - 前記ロック用プレート組立体は、ロックアウトねじ山付き部分及び前記ロック用ねじの雄型結合部を受け入れるよう構成された雌型結合部を有するロックアウトねじをさらに含み、前記ロックアウトねじは、前記椎体間スペーサを拡張形態にロックするよう構成されている、請求項1記載の脊柱システム。
- 前記椎骨取り付けプレートは、異なる方向に角度づけされた前記1本以上の骨ねじの各々を受け入れるよう構成されている、請求項1記載の脊柱システム。
- 前記貫通穴のうちの少なくとも1つは、テーパ付きの形態をしている、請求項1記載の脊柱システム。
- 前記ロック用ねじの前記ねじ頭は、ソケット及び/又はスロットを含むツール受け入れ特徴部を有する、請求項1記載の脊柱システム。
- 前記ロック用ねじの前記ねじ頭は、前記ロック用ねじを回転させるよう構成されたドライバーのソケットによって受け入れられるよう構成されている、請求項1記載の脊柱システム。
- 前記ロック用ねじの前記ねじ頭は、前記ロック用ねじが前記ロック用プレート組立体に結合されたときに前記椎骨取り付けプレートと前記ロック用ねじとの運動を阻止するよう構成されている、請求項1記載の脊柱システム。
- 前記ロック用ねじは、(a)前記ロック用プレート組立体と(b)脊柱及び/又は前記1本以上の骨ねじとの微小運動を可能にするよう構成されている、請求項1記載の脊柱システム。
- 前記椎骨取り付けプレートは、前記椎体間スペーサを保持すると共に、前記椎体間スペーサに対する前記椎骨取り付けプレートの運動を阻止するよう構成された1つ以上のポジショナを有する、請求項1記載の脊柱システム。
- 前記1つ以上のポジショナは、前記プレートに取り外し可能に結合されている、請求項9記載の脊柱システム。
- 患者の脊柱の第1の椎体と第2の椎体との間に植え込み可能な椎間スペーサであって、前記椎間スペーサは、
第1の骨ねじ開口部を備えた第1の拡張可能な支持部材を有し、
第2の拡張可能な支持部材を有し、
少なくとも1つの拡張組立体を有し、前記少なくとも1つの拡張組立体は、前記第1の拡張可能な支持部材と前記第2の拡張可能な支持部材を側方に離すと共に、垂直方向に拡張して前記椎間スペーサが側方にかつ垂直方向に拡張した形態に自動的にロックするようになっており、
前記椎間スペーサが前記側方かつ垂直方向に拡張した形態にロックされたときに前記第1の骨ねじ開口部を通って挿入可能な骨ねじを有し、前記骨ねじは、前記第1及び前記第2の椎体のうちの一方の中に延びて前記椎間スペーサを前記患者の脊柱に繋留するよう構成されている、椎間スペーサ。 - 前記骨ねじは、前記第1及び前記第2の拡張可能な支持部材をそれぞれ貫通したときに外方に広げられるよう構成された複数の骨ねじから成る、請求項11記載の椎間スペーサ。
- 前記骨ねじは、前記第1の拡張可能な支持部材を貫通して前記第1の拡張可能な支持部材に対する前記骨ねじの回転を可能にするよう構成されたねじ山なし部分を有する、請求項11記載の椎間スペーサ。
- 前記骨ねじは、前記椎間スペーサの横断面の方へ向いたねじ頭を有する、請求項11記載の椎間スペーサ。
- 前記第1の骨ねじ開口部は、前記第1の拡張可能な支持部材の近位フェースから前記第1の拡張可能な支持部材の骨接触面まで延びる貫通穴である、請求項11記載の椎間スペーサ。
- 前記骨ねじは、前記椎間スペーサが前記第1の椎体と前記第2の椎体との間の椎間腔のところに位置決めされた状態で、前記第1及び前記第2の椎体のうちの一方中にねじ込まれるよう構成されている、請求項11記載の椎間スペーサ。
- 前記第1及び前記第2の拡張可能な支持部材の各々は、上側骨接触面及び下側骨接触面を有し、前記骨ねじは、各々が前記上側骨接触面及び前記下側骨接触面のうちの対応の骨接触面を貫通するよう構成された複数の骨ねじから成る、請求項11記載の椎間スペーサ。
- 前記少なくとも1つの拡張組立体に結合して前記椎間スペーサの折り畳みを阻止するよう構成されたロックアウトねじをさらに有する、請求項11記載の椎間スペーサ。
- 前記骨ねじが前記第1の骨ねじ開口部内に嵌め込まれると、前記骨ねじは、前記椎間スペーサの横断面と20°から70°までの範囲の角度をなす、請求項11記載の椎間スペーサ。
- 前記第1の拡張可能な支持部材は、上側本体及び下側本体を有し、前記上側本体は、前記第1の拡張可能な支持部材を回動可能に保持するよう構成された上側受け入れ特徴部と、前記第1の拡張可能な支持部材を回動可能に保持するよう構成された下側受け入れ特徴部とを有する、請求項11記載の椎間スペーサ。
- 前記少なくとも1つの拡張組立体は、前記椎間スペーサの拡張完了時に前記第1及び前記第2の拡張可能な支持部材の互いに反対側に位置する端部分に連結される、請求項11記載の椎間スペーサ。
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| Application Number | Priority Date | Filing Date | Title |
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| US202063126253P | 2020-12-16 | 2020-12-16 | |
| US63/126,253 | 2020-12-16 | ||
| US202163176168P | 2021-04-16 | 2021-04-16 | |
| US63/176,168 | 2021-04-16 | ||
| PCT/US2021/063881 WO2022133130A1 (en) | 2020-12-16 | 2021-12-16 | Anchored intervertebral implants |
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| JP2024500784A JP2024500784A (ja) | 2024-01-10 |
| JP7753366B2 true JP7753366B2 (ja) | 2025-10-14 |
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| US10945859B2 (en) | 2018-01-29 | 2021-03-16 | Amplify Surgical, Inc. | Expanding fusion cages |
| US20190329388A1 (en) | 2018-04-27 | 2019-10-31 | Imds Llc | Fastener retention mechanisms |
| KR102489197B1 (ko) * | 2020-05-25 | 2023-01-17 | (주)엘앤케이바이오메드 | 높이조절이 가능한 척추 유합 케이지 |
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2021
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- 2021-12-16 WO PCT/US2021/063881 patent/WO2022133130A1/en not_active Ceased
- 2021-12-16 JP JP2023537106A patent/JP7753366B2/ja active Active
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2023
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018520754A (ja) | 2015-06-17 | 2018-08-02 | グローバス メディカル インコーポレイティッド | 可変型前弯椎体間スペーサ |
| JP2018525131A (ja) | 2015-08-25 | 2018-09-06 | アイエムディーエス リミテッド ライアビリティ カンパニー | 拡張可能な椎間インプラント |
| US20190231551A1 (en) | 2016-09-08 | 2019-08-01 | Mayo Foundation For Medical Education And Research | Spinal fixation system |
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| US20230320866A1 (en) | 2023-10-12 |
| EP4262636A1 (en) | 2023-10-25 |
| EP4262636A4 (en) | 2024-11-13 |
| WO2022133130A1 (en) | 2022-06-23 |
| JP2024500784A (ja) | 2024-01-10 |
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