JP4945195B2 - 棒状インプラント要素および安定化装置 - Google Patents
棒状インプラント要素および安定化装置 Download PDFInfo
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- JP4945195B2 JP4945195B2 JP2006226929A JP2006226929A JP4945195B2 JP 4945195 B2 JP4945195 B2 JP 4945195B2 JP 2006226929 A JP2006226929 A JP 2006226929A JP 2006226929 A JP2006226929 A JP 2006226929A JP 4945195 B2 JP4945195 B2 JP 4945195B2
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- JP
- Japan
- Prior art keywords
- rod
- implant element
- core
- shaped implant
- elastic
- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
- A61B17/7031—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other made wholly or partly of flexible material
-
- 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
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
- A61B17/702—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other having a core or insert, and a sleeve, whereby a screw or hook can move along the core or in the sleeve
-
- 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
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
-
- 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
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
- A61B17/7026—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other with a part that is flexible due to its form
- A61B17/7028—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other with a part that is flexible due to its form the flexible part being a coil spring
-
- 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
- A61B17/7035—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
Description
rews)2、3とを含む。
軸ネジとして設計される。頭部26は、内側ネジ25を締めると、頭部を押圧する押圧部材27を介して所定位置に固定される。
さらにこの実施例では、コア12を被膜して、ボアの中で摺動しやすくすることもできる。
図14および図15は、この発明に従う棒状インプラント要素の第3の実施例を示す。第3の実施例の棒状インプラント要素60が第1および第2の実施例の棒状インプラント要素と異なっているのは、弾性部の設計である。棒状インプラント要素60は、第1の端部62に隣接する第1の剛体部61と、第2の端部64に隣接する第2の剛体部63と、第1の剛体部61と第2の剛体部63との間に弾性部65とを有する。第1の剛体部61および第2の剛体部63は、長手方向の同軸のボア66を有する。弾性部65も、同軸のボア67を有しているので、実質的に筒状である。弾性部65は、その自由端において、第1および第2の剛体部の自由端にそれぞれ接続される。弾性部65の外径は、両端の第1の直径から、中央部のより小さい第2の直径にかけて小さくなっており、それによって伸縮しやすくなる。剛体部は、第1の実施例と同様、たとえばチタニウムのような、剛性を有し、人体への適合性を有する材料から作られる。弾性部は、人体への適合性を有する
エラストマーから作られる。そのような種類のエラストマーとして、たとえばポリウレタン類またはポリシロキサン類がある。弾性部は、たとえば加硫処理によって、剛体部に固定される。
Claims (12)
- 少なくとも2つの骨固定要素(2、3)を接続するための棒状インプラント要素であって、各々の骨固定要素は、骨に固定される固定部(21、21′)と、棒状インプラント要素に接続される受け部材(22、22′)とを含み、
該棒状インプラント要素は、
長手方向軸(A)と、
受け部材(22、22′)と連係し、かつ受け部材に受けられるように構成された、少なくとも1つの第1の長さの剛体部(4、61)と、
剛体部に隣接する第2の長さの弾性部(8、65、71)と、
長手方向軸に沿って、かつ剛体部および弾性部を通って延在するボア(9、66、67)と、
ボアに収容されるコア(12)とを含み、該コアは2つの対向する端部を有し、
弾性部が長手方向軸の方向に伸張または収縮するとき、前記コアの少なくとも一方の端部はボア内で移動自在であり、前記コア(12)の表面は、摺動を容易にする材料で被覆される、棒状インプラント要素。 - 前記コア(12)の曲げ剛性は、弾性部(8、65、71)の曲げ剛性より大きい、請求項1に記載の棒状インプラント要素。
- 前記コアの表面を被覆する前記材料は、プラスチック材料である、請求項1に記載の棒状インプラント要素。
- 前記プラスチック材料は、ポリエチレンまたはテフロン(登録商標)である、請求項3に記載の棒状インプラント要素。
- 前記コアは、ステンレス鋼、チタニウム、ニチノールまたは剛性プラスチック材料から作られる、請求項1から4のいずれか1つに記載の棒状インプラント要素。
- 前記コアは、該コアの他の部分に比べて、曲げ剛性が低い部分を含む、請求項1から5のいずれか1つに記載の棒状インプラント要素。
- コア(12)全体は、ボア内で長手方向軸(A)の方向に移動自在である、請求項1から6のいずれか1つに記載の棒状インプラント要素。
- 第3の長さの剛体部(6、63)を含み、弾性部(8、65、71)は2つの対向する端部を有し、第1の長さの剛体部(4、61)は第1の端部に隣接し、第3の長さの剛体部(6、63)は第2の端部に隣接する、請求項1から7のいずれか1つに記載の棒状インプラント要素。
- 剛体部および弾性部は、単一の連続体として形成される、請求項1から8のいずれか1つに記載の棒状インプラント要素。
- 弾性部(8)は、外面と、該外面内に螺旋状のスロット形開口部(10)とを含み、該スロット形開口部(10)は、径方向内方に延在する、請求項1から9のいずれか1つに記載の棒状インプラント要素。
- 弾性部(65、71)は、エラストマーで形成される、請求項1から9のいずれか1つに記載の棒状インプラント要素。
- 骨、または脊椎のための安定化装置であって、少なくとも2つの骨固定要素(2、3)を備え、各々の骨固定要素は、骨に固定される骨固定部(21、21′)と、受け部材(22、22′)とを含み、請求項1から11のいずれか1つに記載の棒状インプラント要素(1、50、60、70)を備え、前記棒状インプラント要素は骨固定要素と接続される、安定化装置。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US71108205P | 2005-08-24 | 2005-08-24 | |
EP05018425A EP1757243B1 (en) | 2005-08-24 | 2005-08-24 | Rod-shaped implant element for the application in spine surgery or trauma surgery and stabilization device with such a rod-shaped implant element |
US60/711,082 | 2005-08-24 | ||
EP05018425.8 | 2005-08-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2007054628A JP2007054628A (ja) | 2007-03-08 |
JP2007054628A5 JP2007054628A5 (ja) | 2009-05-14 |
JP4945195B2 true JP4945195B2 (ja) | 2012-06-06 |
Family
ID=35532114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006226929A Expired - Fee Related JP4945195B2 (ja) | 2005-08-24 | 2006-08-23 | 棒状インプラント要素および安定化装置 |
Country Status (7)
Country | Link |
---|---|
US (2) | US8491637B2 (ja) |
EP (1) | EP1757243B1 (ja) |
JP (1) | JP4945195B2 (ja) |
CN (1) | CN100589773C (ja) |
DE (1) | DE602005007223D1 (ja) |
ES (1) | ES2305969T3 (ja) |
TW (1) | TWI426884B (ja) |
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ES2305969T3 (es) | 2008-11-01 |
US9492202B2 (en) | 2016-11-15 |
US20070049937A1 (en) | 2007-03-01 |
US20140018856A1 (en) | 2014-01-16 |
DE602005007223D1 (de) | 2008-07-10 |
CN1973786A (zh) | 2007-06-06 |
JP2007054628A (ja) | 2007-03-08 |
TW200714249A (en) | 2007-04-16 |
TWI426884B (zh) | 2014-02-21 |
US8491637B2 (en) | 2013-07-23 |
EP1757243A1 (en) | 2007-02-28 |
EP1757243B1 (en) | 2008-05-28 |
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