JP6045253B2 - 多軸骨固定装置 - Google Patents
多軸骨固定装置 Download PDFInfo
- Publication number
- JP6045253B2 JP6045253B2 JP2012180033A JP2012180033A JP6045253B2 JP 6045253 B2 JP6045253 B2 JP 6045253B2 JP 2012180033 A JP2012180033 A JP 2012180033A JP 2012180033 A JP2012180033 A JP 2012180033A JP 6045253 B2 JP6045253 B2 JP 6045253B2
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- Prior art keywords
- anchoring device
- bone anchoring
- head
- polyaxial bone
- set 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.)
- Expired - Fee Related
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Classifications
-
- 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
-
- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
-
- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
- A61B17/7034—Screws or hooks with U-shaped head or back through which longitudinal rods pass characterised by a lateral opening
-
- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
-
- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
- A61B17/7037—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other wherein pivoting is blocked when the rod is clamped
-
- 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
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
- A61B17/725—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with locking pins or screws of special form
-
- 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
- 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
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30495—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking ring
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Neurology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Description
この発明のさらなる特徴および利点は添付の図面によって実施例の説明から明らかになる。
Claims (10)
- 多軸骨固定装置であって、
骨に固定するためのシャフト(3,3′,3″,3′″)と、頭部(4,4′,4″,4′″)とを有する固定要素(2,2′,2″,2′″)と;
頂部端(51,51′,51″,51′″)および底部端(52,52′,52″,52′″)と、ロッドを中に受けるためのチャネル(56,56′,56″,56′″)と、頂部端(51,51′,51″,51′″)から底部端(52,52′,52″,52′″)まで軸(M)に沿って延在し、頭部(4,4′,4″,4′″)を受入れるための座部(54,54′,54″,54′″)を含む通路(53,53′,53″,53′″;54,54′,54″,54′″;55,55′,55″,55′″)とを有する受け部(5,5′,5″,5′″)と;
通路(53,53′,53″,53′″)に配置され、頭部(4,4′,4″,4′″)に圧力をかけるよう構成される圧力要素(6,6′,6″,6′″)とを含み、頭部は、受け部(5,5′,5″,5′″)に関して旋回可能であり、圧力要素(6,6′,6″,6′″)によってある角度にロックすることができ;
圧力要素(6,6′,6″,6′″)は、少なくとも1つの穴(600a,600a′,600a″,600a′″;600b,600b′,600b″,600b′″)を含み、該少なくとも1つの穴の各々は下方へ延在する、テーパを有する下側フランク(601a,601b)を備え;
受け部(5,5′,5″,5′″)は、止めねじ(8,8′,8″,8′″)および少なくとも1つの止めねじ(8,8′,8″,8′″)を受けるための少なくとも1つのねじ切りされた貫通穴(500a,500a′,500a″,500a′″;500b,500b′,500b″,500b′″)を含み、前記少なくとも1つの止めねじは、テーパ形の部分(82)が設けられた端部を有し、前記下側フランクの前記テーパと前記軸(M)とがなす角度は、前記止めねじ(8,8′,8″,8′″)の前記テーパ形の部分と前記軸(M)とがなす角度と同じであり、
貫通穴(500a,500a′,500a″,500a′″;500b,500b′,500b″,500b′″)および穴(600a,600a′,600a″,600a′″;600b,600b′,600b″,600b′″)は、貫通穴(500a,500a′,500a″,500a′″;500b,500b′,500b″,500b′″)の中へ止めねじ(8,8′,8″,8′″)をねじ込めること、および止めねじ(8,8′,8″,8′″)と穴(600a,600a′,600a″,600a′″;600b,600b′,600b″,600b′″)との係合によって、力が、圧力要素(6,6′,6″,6′″)によって頭部(4,4′,4″,4′″)上にかけられ、摩擦によってある角度位置に頭部を維持した後、多軸骨固定装置をロックするように、配され、
前記止めねじの前記貫通穴へのねじ込みにおける回転角を選択することにより、圧力要素(6)と頭部(4)との間の所望の摩擦力を達成することができる、軸骨固定装置。 - 圧力要素(6,6′,6″,6′″)が、受け部(5,5′,5″,5′″)内に挿入され、頭部(4,4′,4″,4′″)上に載置されると、穴(600a,600a′,600a″,600a′″;600b,600b′,600b″,600b′″)は、軸方向において底部端(52,52′,52″,52′″)に向かって止めねじ(8,8′,8″,8′″)に接する前記下側フランク(601a,601b)を有する、請求項1に記載の多軸骨固定装置。
- 止めねじ(8,8′,8″,8′″)の中心軸と穴(600a,600a′,600a″,600a′″;600b,600b′,600b″,600b′″)との間の前記軸Mの軸方向における距離は、頭部(4,4′,4″,4′″)と圧力要素(6,6′,6″,6′″)との間に規定された摩擦力を生成するよう、穴の下側端縁(601a,601b)を係合すると、止めねじ(8,8′,8″,8′″)は、圧力要素(6,6′,6″,6′″)上に圧力をかけるような距離である、請求項2に記載の多軸骨固定装置。
- 前記止めねじの前記テーパ形の部分と前記軸(M)とがなす角度は30度と60度との間である、請求項1に記載の多軸骨固定装置。
- 前記穴(600a″,600b″)は円筒形の部分を有しない、請求項1〜4のいずれか1項に記載の多軸骨固定装置。
- 前記穴(600a′″,600b′″)の断面は台形である、請求項1〜5のいずれか1項に記載の多軸骨固定装置。
- 少なくとも2つの貫通ボア(500a,500a′,500a″,500a′″;500b,500b′,500b″,500b′″)および対応する穴(600a,600a′,600a″,600a′″;600b,600b′,600b″,600b′″)が設けられ、それらは周方向に180度ずれている、請求項1〜6のいずれか1項に記載の多軸骨固定装置。
- 圧力要素(6,6′,6″,6′″)は、頂部端(61,61′,61″,61′″)および底部端(62,62′,62″,62′″)と、同軸のボア(67,67′,67″,67′″)と、底部端における球形凹部(63,63′,63″,63′″)と、頂部端における円筒形またはU字型の凹部(64,64′,64″,64′″)とを含み、円筒形またはU字型の凹部(64,64′,64″,64′″)は、受け部(5,5′,5″,5′″)の凹部(56,56′,56″,56′″)と整列される、請求項1〜7のいずれか1項に記載の多軸骨固定装置。
- 受け部(5′)は、一方の側に対する固定要素(2′)のより大きな旋回角度を可能にするための非対称の端部部分を有することができる、請求項1〜8のいずれか1項に記載の多軸骨固定装置。
- 前記止めねじ(8,8′,8″,8′″)の前記テーパ形の部分(82)は、前記止めねじのねじ筋のない前側部分である、請求項1〜9のいずれか1項に記載の多軸骨固定装置。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161525093P | 2011-08-18 | 2011-08-18 | |
US61/525,093 | 2011-08-18 | ||
EP11178034A EP2559389B1 (en) | 2011-08-18 | 2011-08-18 | Polyaxial bone anchoring device |
EP11178034.2 | 2011-08-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013039370A JP2013039370A (ja) | 2013-02-28 |
JP6045253B2 true JP6045253B2 (ja) | 2016-12-14 |
Family
ID=44532669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012180033A Expired - Fee Related JP6045253B2 (ja) | 2011-08-18 | 2012-08-15 | 多軸骨固定装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US9345516B2 (ja) |
EP (1) | EP2559389B1 (ja) |
JP (1) | JP6045253B2 (ja) |
KR (1) | KR20130020611A (ja) |
CN (1) | CN102949232B (ja) |
ES (1) | ES2418604T3 (ja) |
TW (1) | TW201309258A (ja) |
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-
2011
- 2011-08-18 EP EP11178034A patent/EP2559389B1/en active Active
- 2011-08-18 ES ES11178034T patent/ES2418604T3/es active Active
-
2012
- 2012-08-15 JP JP2012180033A patent/JP6045253B2/ja not_active Expired - Fee Related
- 2012-08-15 TW TW101129447A patent/TW201309258A/zh unknown
- 2012-08-15 CN CN201210289705.0A patent/CN102949232B/zh not_active Expired - Fee Related
- 2012-08-16 KR KR1020120089700A patent/KR20130020611A/ko not_active Application Discontinuation
- 2012-08-17 US US13/588,859 patent/US9345516B2/en active Active
Also Published As
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ES2418604T3 (es) | 2013-08-14 |
EP2559389A1 (en) | 2013-02-20 |
US20130096622A1 (en) | 2013-04-18 |
US9345516B2 (en) | 2016-05-24 |
JP2013039370A (ja) | 2013-02-28 |
KR20130020611A (ko) | 2013-02-27 |
EP2559389B1 (en) | 2013-04-03 |
CN102949232A (zh) | 2013-03-06 |
CN102949232B (zh) | 2017-03-01 |
TW201309258A (zh) | 2013-03-01 |
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