JP7046129B2 - 拡張可能な椎間インプラントおよびそれを取り付けるための器具 - Google Patents
拡張可能な椎間インプラントおよびそれを取り付けるための器具 Download PDFInfo
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- JP7046129B2 JP7046129B2 JP2020133865A JP2020133865A JP7046129B2 JP 7046129 B2 JP7046129 B2 JP 7046129B2 JP 2020133865 A JP2020133865 A JP 2020133865A JP 2020133865 A JP2020133865 A JP 2020133865A JP 7046129 B2 JP7046129 B2 JP 7046129B2
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- driver
- ratchet teeth
- actuator
- bidirectional
- ratchet
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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
- A61F2/44—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
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
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- 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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- 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
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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
- A61F2002/30535—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
- A61F2002/30556—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting thickness
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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
- A61F2002/30579—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
- 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
- A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
-
- 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
- A61F2002/30622—Implant for fusing a joint or bone material
-
- 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
- A61F2002/30624—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
- A61F2/44—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 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
-
- 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
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Neurology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Transplantation (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Prostheses (AREA)
Description
本出願は、2017年11月9日に出願された米国特許出願第15/808,180号の一部継続出願である、2018年8月29日に出願された米国特許出願第16/116,396号の一部継続出願であり、その全体がすべての目的のために参照により本明細書に組み入れられる。
図22~26を参照すると、本開示の別の実施形態によるインプラント400が説明される。インプラント400は、上述のインプラント300のものと実質的に類似した特徴を含む。そのため、明確化のためにインプラント400の説明においてこれらの特徴の説明を省略する。インプラント300と同様に、インプラント400はまた、上側エンドプレート110および下側エンドプレート130と、アクチュエータスクリュー410と、アクチュエータナット220と、を含む。一部の実施形態では、インプラント400はまた、固定スクリューまたはアンカーの移動を防止するため、エンドプレート110、130上に複数のブロッキングスクリュー124を含み得る。インプラント400は、インプラント300とは異なるが、インプラント400は、前方アクチュエータ450、第二アクチュエータ460、後方アクチュエータ470、第一のエンドプレートピボット415、第二のエンドプレートピボット416、および第二のアクチュエータナット420を含む。
Claims (19)
- 双方向ドライバであって、
近位端から遠位端まで延在する内側ドライバであって、前記内側ドライバが、
前記内側ドライバの前記近位端に配置されたハンドル、
前記内側ドライバの前記遠位端に配置された内側ドライバ先端、および、
前記ハンドルから前記内側ドライバ先端まで延在するシャフトを含む、内側ドライバと、
近位端から遠位端まで延在する外側ドライバであって、前記外側ドライバが、
前記外側ドライバの前記近位端に配置されたハンドル部分、
前記外側ドライバの前記遠位端に配置された外側ドライバ先端、および、
前記ハンドル部分から前記外側ドライバ先端まで延在する管状シャフトであって、前記内側ドライバが、前記内側ドライバの前記遠位端が前記外側ドライバの前記遠位端に遠位にあるように、前記外側ドライバを通って少なくとも部分的に延在する、管状シャフトを含む、外側ドライバと、
前記内側ドライバおよび外側ドライバを連結する回転制約システムであって、前記回転制約システムが、前記回転制約システムが第一の構成にあるときには第一の方向における前記内側ドライバと前記外側ドライバとの間の回転を防止し、且つ前記回転制約システムが第二の構成にあるときには第二の方向における前記内側ドライバと前記外側ドライバとの間の回転を防止するように構成される、回転制約システムと、を備える、双方向ドライバ。 - 前記回転制約システムが、
前記ハンドルの近位にある固定要素を介して前記内側ドライバの前記シャフトに連結されたロッキングスリーブであって、前記ロッキングスリーブの遠位端が、前記外側ドライバの前記近位端上のラチェット歯の第一のセットと噛み合い、且つそれと係合するように構成された第一の複数のラチェット歯を有し、前記ロッキングスリーブが開口部を含む、ロッキングスリーブと、
前記ロッキングスリーブの前記開口部を通って延在し、第一の位置と第二の位置との間で可動である押しボタンであって、前記第一の位置が前記回転制約システムを前記第一の構成にあるようにし、前記第二の位置が前記回転制約システムを前記第二の構成にあるようにする、押しボタンと、
前記押しボタンを通って延在するラチェットプッシャーであって、前記ラチェットプッシャーが、前記ラチェットプッシャーの遠位端に第二の複数のラチェット歯を含み、前記第二の複数のラチェット歯が、前記外側ドライバの前記近位端上のラチェット歯の第二のセットと噛み合い、且つそれと係合するように構成され、前記第二の複数のラチェット歯が、前記第一の複数のラチェット歯とは反対方向に配向される、ラチェットプッシャーと、を備える、請求項1に記載の双方向ドライバ。 - 前記ロッキングスリーブの内部および前記ロッキングスリーブを通って延在する前記シャフトの一部分が、前記ロッキングスリーブの前記シャフトに対する前記回転を防止するための嵌合平面を含む、請求項2に記載の双方向ドライバ。
- 前記押しボタンが、前記押しボタンが前記押しボタンのストロークのいずれかの側で捕捉されるように、前記ロッキングスリーブの前記開口部の縁部と整合するように構成された一つ以上のリーフばね要素を含む、請求項2に記載の双方向ドライバ。
- 前記第一の複数のラチェット歯が、前記第一の構成において前記ラチェット歯の第一のセットと係合し、前記第二の複数のラチェット歯が、前記第二の構成において前記ラチェット歯の第二のセットと係合する、請求項2に記載の双方向ドライバ。
- 前記第二の複数のラチェット歯が、前記第一の複数のラチェット歯と同軸に、且つそれの径方向内向きに配置され、前記ラチェット歯の第二のセットが、前記ラチェット歯の第一のセットと同心であり、且つそれの径方向内向きにある、請求項5に記載の双方向ドライバ。
- 前記第二の複数のラチェット歯が、前記第一の複数のラチェット歯の方向とは反対方向に配向され、前記ラチェット歯の第二のセットが、前記ラチェット歯の第一のセットの方向とは反対方向に配向される、請求項6に記載の双方向ドライバ。
- 内向きに延在する壁を有し、且つ前記ロッキングスリーブ内に配置された付勢要素をさらに備え、前記付勢要素が、前記内側ドライバの前記ハンドルと前記内向きに延在する壁との間に延在して、前記ロッキングスリーブの前記第一の複数のラチェット歯が前記外側ドライバのラチェット歯の第一のセットと係合するように付勢する、請求項2に記載の双方向ドライバ。
- 前記付勢要素が螺旋状ばねである、請求項8に記載の双方向ドライバ。
- 前記双方向ドライバが、関節の骨を治療的に分離させるためにインプラントを拡張または収縮するように構成される、請求項1に記載の双方向ドライバ。
- 双方向ドライバであって、
近位端から遠位端まで延在する内側ドライバであって、前記内側ドライバが、
前記内側ドライバの前記近位端に配置されたハンドル、
前記内側ドライバの前記遠位端に配置された内側ドライバ先端、および、
前記ハンドルから前記内側ドライバ先端まで延在するシャフトを含む、内側ドライバと、
近位端から遠位端まで延在する外側ドライバであって、前記外側ドライバが、
前記外側ドライバの前記近位端に配置されたハンドル部分、
前記外側ドライバの前記遠位端に配置された外側ドライバ先端、および、
前記ハンドル部分から前記外側ドライバ先端まで延在する管状シャフトであって、前記内側ドライバが、前記内側ドライバの前記遠位端が前記外側ドライバの前記遠位端に遠位にあるように、前記外側ドライバを通って少なくとも部分的に延在する、管状シャフトを含む、外側ドライバと、
前記内側ドライバおよび外側ドライバを連結する回転制約システムであって、前記回転制約システムが、前記回転制約システムが第一の構成にあるときには第一の方向における前記内側ドライバと前記外側ドライバとの間の回転を防止し、且つ前記回転制約システムが第二の構成にあるときには第二の方向における前記内側ドライバと前記外側ドライバとの間の回転を防止するように構成され、前記回転制約システムが、
前記ハンドルの近位にある固定要素を介して前記内側ドライバの前記シャフトに連結されたロッキングスリーブであって、前記ロッキングスリーブの遠位端が、前記外側ドライバの前記近位端上のラチェット歯の第一のセットと噛み合い、且つそれと係合するように構成された第一の複数のラチェット歯を有し、前記ロッキングスリーブが開口部を含む、ロッキングスリーブと、
前記ロッキングスリーブの前記開口部を通って延在し、第一の位置と第二の位置との間で可動である押しボタンであって、前記第一の位置が前記回転制約システムを前記第一の構成にあるようにし、前記第二の位置が前記回転制約システムを前記第二の構成にあるようにする、押しボタンと、
前記押しボタンを通って延在するラチェットプッシャーであって、前記ラチェットプッシャーが、前記ラチェットプッシャーの遠位端に第二の複数のラチェット歯を含み、前記第二の複数のラチェット歯が、前記外側ドライバの前記近位端上のラチェット歯の第二のセットと噛み合い、且つそれと係合するように構成され、前記第二の複数のラチェット歯が、前記第一の複数のラチェット歯とは反対方向に配向される、ラチェットプッシャーを含む、ラチェットプッシャーと、を含む、回転制約システムと、を備える、双方向ドライバ。 - 前記ロッキングスリーブの内部および前記ロッキングスリーブを通って延在する前記シャフトの一部分が、前記ロッキングスリーブの前記シャフトに対する前記回転を防止するための嵌合平面を含む、請求項11に記載の双方向ドライバ。
- 前記押しボタンが、前記押しボタンが前記押しボタンのストロークのいずれかの側で捕捉されるように、前記ロッキングスリーブの前記開口部の縁部と整合するように構成された一つ以上のリーフばね要素を含む、請求項11に記載の双方向ドライバ。
- 前記第一の複数のラチェット歯が、前記第一の構成において前記ラチェット歯の第一のセットと係合し、前記第二の複数のラチェット歯が、前記第二の構成において前記ラチェット歯の第二のセットと係合する、請求項11に記載の双方向ドライバ。
- 前記第二の複数のラチェット歯が、前記第一の複数のラチェット歯と同軸に、且つそれの径方向内向きに配置され、前記ラチェット歯の第二のセットが、前記ラチェット歯の第一のセットと同心であり、且つそれの径方向内向きにある、請求項14に記載の双方向ドライバ。
- 前記第二の複数のラチェット歯が、前記第一の複数のラチェット歯の方向とは反対方向に配向され、前記ラチェット歯の第二のセットが、前記ラチェット歯の第一のセットの方向とは反対方向に配向される、請求項15に記載の双方向ドライバ。
- 内向きに延在する壁を有し、且つ前記ロッキングスリーブ内に配置された付勢要素をさらに備え、前記付勢要素が、前記内側ドライバの前記ハンドルと前記内向きに延在する壁との間に延在して、前記ロッキングスリーブの前記第一の複数のラチェット歯が前記外側ドライバのラチェット歯の第一のセットと係合するように付勢する、請求項11に記載の双方向ドライバ。
- 前記付勢要素が螺旋状ばねである、請求項17に記載の双方向ドライバ。
- 前記双方向ドライバが、関節の骨を治療的に分離させるためにインプラントを拡張または収縮するように構成される、請求項1に記載の双方向ドライバ。
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