JP7145914B2 - 前頸部プレートアセンブリ - Google Patents
前頸部プレートアセンブリ Download PDFInfo
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- JP7145914B2 JP7145914B2 JP2020133857A JP2020133857A JP7145914B2 JP 7145914 B2 JP7145914 B2 JP 7145914B2 JP 2020133857 A JP2020133857 A JP 2020133857A JP 2020133857 A JP2020133857 A JP 2020133857A JP 7145914 B2 JP7145914 B2 JP 7145914B2
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- JP
- Japan
- Prior art keywords
- driver
- blocking
- screw
- removal
- bone screw
- 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.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8875—Screwdrivers, spanners or wrenches
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7059—Cortical plates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
- A61B17/8042—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers the additional component being a cover over the screw head
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
- A61B17/8047—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers wherein the additional element surrounds the screw head in the plate hole
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
- A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
- A61B17/8615—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the central region of the screw head
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8875—Screwdrivers, spanners or wrenches
- A61B17/8877—Screwdrivers, spanners or wrenches characterised by the cross-section of the driver bit
- A61B17/888—Screwdrivers, spanners or wrenches characterised by the cross-section of the driver bit the driver bit acting on the central region of the screw head
Description
本出願は、2017年11月16日に出願された米国特許出願第15/814,490号の一部継続出願である、2019年3月18日に出願された米国特許出願第16/356,760号の一部継続出願である、2019年5月9日に出願された米国特許出願第16/407,284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。
Claims (8)
- ベースプレートから骨スクリューを取り外すように構成された骨スクリュー取り外し器具であって、前記取り外し器具が、
中空内部を有し、且つ近位端から遠位端まで延在する取り外しスリーブであって、前記遠位端がプロングを含む、取り外しスリーブと、
前記取り外しスリーブの前記中空内部を通って延在するドライバであって、前記ドライバが、近位端から遠位端まで延在し、前記ドライバが、前記ドライバの前記遠位端にドライバ先端を含む、ドライバと、を含み、
前記取り外しスリーブの前記近位端が複数のプロングおよび前記複数のプロングを分離する対応する複数のスロットを含み、該複数のプロングが、前記取り外しスリーブ内に前記ドライバを挿入する際に該ドライバによって外向き方向に力が加えられた場合に外向きに屈曲可能であり、
前記取り外しスリーブおよび前記ドライバが、互いに独立して回転可能である、骨スクリュー取り外し器具。 - 前記ドライバの前記近位端が、ハンドルまたは駆動器具に結合されるように構成された結合部分を含む、請求項1に記載の骨スクリュー取り外し器具。
- 前記取り外しスリーブが、前記取り外しスリーブの残りの部分よりも小さい内径を有する縮径セクションを含み、前記縮径セクションが、前記取り外しスリーブの前記近位端から前記近位端と前記遠位端との間の点まで延在する、請求項1に記載の骨スクリュー取り外し器具。
- 前記ドライバ先端が、その上にスクリューを保持するように構成された自己保持先端である、請求項1に記載の骨スクリュー取り外し器具。
- スクリューのヘッド上に延在するブロッキング要素を備えたベースプレートのスクリューシート内に配置されたスクリューを取り外す方法であって、前記方法が、
骨スクリュー取り外し器具を前記スクリューおよびスクリューシートに挿入する工程であって、前記骨スクリュー取り外し器具が、
中空内部を有し、且つ近位端から遠位端まで延在する取り外しスリーブであって、前記遠位端がプロングを含む、取り外しスリーブと、
前記取り外しスリーブの前記中空内部を通って延在するドライバであって、前記ドライバが、近位端から遠位端まで延在し、前記ドライバが、前記ドライバの前記遠位端にドライバ先端を含む、ドライバと、を含み、
前記取り外しスリーブの前記近位端が複数のプロングおよび前記複数のプロングを分離する対応する複数のスロットを含み、該複数のプロングが、前記取り外しスリーブ内に前記ドライバを挿入する際に該ドライバによって外向き方向に力が加えられた場合に外向きに屈曲可能であり、
前記取り外しスリーブおよび前記ドライバが、互いに独立して回転可能であり、
前記ドライバ先端が前記スクリューの前記ヘッド内に形成された係合特徴に挿入され、前記プロングが前記スクリューシートに挿入される、挿入する工程と、
前記プロングが前記ブロッキング要素を前記スクリューシートに隣接した前記ベースプレート内に形成された溝内に付勢するように、前記取り外しスリーブを回転させる工程と、
前記ドライバを回転させて、前記スクリューを前記ベースプレートから取り外す工程と、を含む、方法。 - 前記ドライバの前記近位端に、ハンドルまたは駆動器具を結合する工程をさらに含む、請求項5に記載の方法。
- 前記取り外しスリーブが、前記取り外しスリーブの残りの部分よりも小さい内径を有する縮径セクションを含み、前記縮径セクションが、前記取り外しスリーブの前記近位端から前記近位端と遠位端との間の点まで延在しており、
前記縮径セクションを前記ドライバ上を摩擦摺動させながら、前記ドライバを前記スリーブ内に挿入する工程をさらに含む、請求項5に記載の方法。 - 前記取り外す工程にて、前記ベースプレートから取り外された後の前記スクリューが、前記ドライバ先端の上に保持される、請求項5に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/534,276 US11234742B2 (en) | 2017-11-16 | 2019-08-07 | Anterior cervical plate assembly |
US16/534,276 | 2019-08-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021023824A JP2021023824A (ja) | 2021-02-22 |
JP7145914B2 true JP7145914B2 (ja) | 2022-10-03 |
Family
ID=71994330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020133857A Active JP7145914B2 (ja) | 2019-08-07 | 2020-08-06 | 前頸部プレートアセンブリ |
Country Status (2)
Country | Link |
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EP (1) | EP3782569A1 (ja) |
JP (1) | JP7145914B2 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050192577A1 (en) | 2004-02-26 | 2005-09-01 | Pioneer Laboratories, Inc. | Bone plate system and methods |
US20070270880A1 (en) | 2006-04-28 | 2007-11-22 | Lindemann Gary S | Bone screw revision tools and methods of use |
US20100016901A1 (en) | 2005-06-16 | 2010-01-21 | Robinson James C | Bone screw retaining system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050216027A1 (en) * | 2004-03-24 | 2005-09-29 | Suh Sean S | Extraction screwdriver |
US8029514B2 (en) * | 2006-08-04 | 2011-10-04 | Robinson James C | Bone screw removal system |
-
2020
- 2020-08-06 JP JP2020133857A patent/JP7145914B2/ja active Active
- 2020-08-06 EP EP20189765.9A patent/EP3782569A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050192577A1 (en) | 2004-02-26 | 2005-09-01 | Pioneer Laboratories, Inc. | Bone plate system and methods |
US20100016901A1 (en) | 2005-06-16 | 2010-01-21 | Robinson James C | Bone screw retaining system |
US20070270880A1 (en) | 2006-04-28 | 2007-11-22 | Lindemann Gary S | Bone screw revision tools and methods of use |
Also Published As
Publication number | Publication date |
---|---|
EP3782569A1 (en) | 2021-02-24 |
JP2021023824A (ja) | 2021-02-22 |
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