JP2009261987A - 椎間板空間置換装置 - Google Patents
椎間板空間置換装置 Download PDFInfo
- Publication number
- JP2009261987A JP2009261987A JP2009163245A JP2009163245A JP2009261987A JP 2009261987 A JP2009261987 A JP 2009261987A JP 2009163245 A JP2009163245 A JP 2009163245A JP 2009163245 A JP2009163245 A JP 2009163245A JP 2009261987 A JP2009261987 A JP 2009261987A
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- Prior art keywords
- end surface
- chamber
- wall
- vertebral
- engagement
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Abstract
【解決手段】椎骨置換装置10は、接続部材12と、上側部材30と、下側部材40とを有している。装置10は、長手方向軸線に沿って伸び且つ、軸線に沿って貫通して伸びるチャンバを画成する管状の形態を有する。接続部材12は、本体14を有し、本体14は、上側部材30及び下側部材40を接続部材12のそれぞれの端部に係合部材20により固定されている。隣接する椎骨を支持する椎骨置換装置10は、その一端にて係合した上側又は下側椎間板置換部材の少なくとも1つを有する椎骨体部材を備えている。椎間板置換部材は、椎骨体部材から非係合状態となったとき、脊柱の椎間板空間内に配置することができる。
【選択図】図3
Description
Claims (26)
- 椎骨置換装置において、
脊柱椎間板空間内に配置し得るようにされた第一の部材(30、230、400、600、130又は40、240、401、601、140)であって、隣接する椎骨体端板(70、74)と係合する第一の端面(33、233、410、610)と、対向する第二の端面(35、234、412、612)と、前記第一の端面と前記第二の端面との間を伸びる壁(32、402、404、620、622)とを有し、該壁が、前記第二の端面にて開放するチャンバ(34、234、422、614)を有する前記第一の部材(30、230、400、600、130又は40、240、401、601、140)と、
上端面(15、215、314、514、714、165)を有する上端と、下端面(17、217、135、515、167)を有する下端と、前記上端面及び下端面を貫通して伸びるチャンバ(16、220、333、526)とを備える第二の部材(12、102、212、310、510、810、120)であって、前記第一の部材の前記第二の端面が前記上端面及び下端面の一方に隣接して配置可能であり且つ、前記第二の部材に係合可能であり、可撓性の係合部材(20、320、321、520、521、523、525、720、721)が前記第二の部材と前記第一の部材との間を伸びるようにした前記第二の部材(12、102、212、310、510、810、120)とを備え、
前記可撓性の係合部材(20、320、321、520、521、523、525、720、721)が、前記第二の部材の上端面及び下端面の一方から伸びて、前記第一の部材のチャンバ(34、234、422、614)内に位置決めされ、
前記可撓性の係合部材が横方向に伸びる突出部(52、352、552、723)を含み、該突出部(52、352、552、723)が前記第一の部材のチャンバ内の壁に係合することにより、骨が前記第一及び第二の部材のチャンバを通って成長するときに、前記第一の部材が前記第二の部材から離れて軸方向に動くのに抵抗し、
前記第二の部材が、前記上端面及び前記下端面の前記一方から伸びる少なくとも1つの伸長部(18、23、218、223、316、318、317、319、560、562、564、566)であって、前記第一の部材が前記第二の部材の長手方向軸線の周りで前記第二の部材に対して回転するのに抵抗し且つ前記第一の部材が前記第二の部材の長手方向軸線に対し横方向に前記第二の部材に対して動くのに抵抗し得るよう前記第一の部材のチャンバ内に配置可能な前記少なくとも1つの伸長部を有する、装置。 - 請求項1の装置において、
前記第一の部材の前記壁が凸状の湾曲部分(404)と、対向する凹状の湾曲部分(402)と、該凸状の湾曲部分と該凹状の湾曲部分との間を伸びる1対の対向した凸状湾曲端部分(406、408)とを有する、装置。 - 請求項2の装置において、
前記係合部材(320、321)が、前記凸状湾曲部分(404)と係合し、
前記少なくとも1つの伸長部が、前記チャンバ内に配置可能であり且つ、前記凸状湾曲端部分のそれぞれの湾曲部分と係合可能な1対の伸長部(316、318、317、319)を備える、装置。 - 請求項3の装置において、前記第一の部材のチャンバが、
前記壁の凸状湾曲部分と前記凹状湾曲部分との間の中央チャンバ(422)と、
前記壁の前記凸状湾曲端部分のそれぞれの湾曲部分に隣接する1対の端部チャンバ(418、420)とを備え、
前記係合部材(320)が前記中央チャンバ(422)内に配置可能であり、
前記対の伸長部(316−319)の各々が、前記対の端部チャンバ(418、420)のそれぞれ1つに配置可能である、装置。 - 請求項4の装置において、
前記対の伸長部(316−319)が、前記係合部材(320、321)から前記凹状湾曲部分に向けてオフセットされる、装置。 - 請求項1の装置において、
前記係合部材(20、32、321、520、521、523、525))が、前記第二の部材と一体に形成されたポスト(50、350、550)と、
該ポストから前記上端及び前記下端の前記一方に対向する前記ポストの一端にて前記壁に向けて伸びる前記突出部(52、352、552)とを有する、装置。 - 請求項6の装置において、
前記突出部(52、352、552)が、前記第一の部材が前記第二の部材と係合したとき、前記壁の開口部内に配置可能である、装置。 - 請求項6の装置において、
前記チャンバ(422)が、三角形の形状を有し、
前記ポストが該三角形の形状のチャンバの頂点内に配置可能である、装置。 - 請求項1の装置において、
前記上端面(314)及び下端面(315)の前記一方が第一の凹状湾曲部(314、315)を有し、
前記第二の端面(412)が該第一の凹状湾曲部(314、315)に適合する第一の凸状湾曲部(412)を有する、装置。 - 請求項9の装置において、
前記上端面及び前記下端面の前記一方が、前記第一の凹状湾曲部の横断方向に第二の凹状湾曲部を有し、
前記第二の端面が、前記第二の凹状湾曲部に対する前記第一の凸状湾曲部に対して横方向の第二の凹状湾曲部を有する、装置。 - 請求項1の装置において、
前記上端面及び前記下端面の一方が、実質的に滑らかな表面輪郭外形を有し、
前記第二の端面が、該端面に対して軸受けする少なくとも1つの軸受面(62、630)を有する、装置。 - 請求項1の装置において、
脊柱椎間板空間内に位置決めし得るようにされ且つ、隣接する椎骨体の端板と係合する第一の端面と、対向する第二の端面とを有する第三の部材(40、240、401、601、140又は30、230、400、600、130)を更に備え、
該第三の部材の前記第二の端面が、前記第二の部材の前記上端面及び前記下端面の他方に隣接して配置可能であり、
前記第三の部材が、前記第二の部材と係合し、可撓性の係合部材が前記第二の部材と前記第三の部材との間を伸びるようにした、装置。 - 請求項1の装置において、
前記可撓性の係合部材が、前記第一及び第二の部材が互いに離れるよう変位するのに抵抗し得るようにされ、
前記第一の部材及び前記第二の部材が、互いに向けて変位することが、前記第二の部材の前記上端面及び前記下端面の前記一方の間で前記第一の部材の前記第二の面と軸受け接触することにより抵抗を受けるようにした、装置。 - 椎骨置換装置において、
脊柱椎間板空間内に配置し得るようにされた第一の部材(30、230、400、600、130又は40、240、401、601、140)であって、隣接する椎骨体端板(70、74)と係合する第一の端面(33、233、410、610)と、対向する第二の端面(35、234、412、612)と、前記第一の端面と前記第二の端面との間を伸びる壁(32、402、404、620、622)とを有し、該壁が、前記第二の端面にて開放するチャンバ(34、234、422、614)を有する前記第一の部材(30、230、400、600、130又は40、240、401、601、140)と、
上端面(15、215、314、514、714、165)を有する上端と、下端面(17、217、135、515、167)を有する下端と、前記上端面及び下端面を貫通して伸びるチャンバ(16、220、333、526)とを備える第二の部材(12、102、212、310、510、810、120)であって、前記第一の部材の前記第二の端面が前記上端面及び下端面の一方に隣接して配置可能であり且つ、前記第二の部材に係合可能であり、可撓性の係合部材(20、320、321、520、521、523、525、720、721)が前記第二の部材と前記第一の部材との間を伸びるようにした前記第二の部材(12、102、212、310、510、810、120)とを備え、
前記可撓性の係合部材(20、320、321、520、521、523、525、720、721)が、前記第二の部材の上端面及び下端面の一方から伸びて、前記第一の部材のチャンバ(34、234、422、614)内に位置決めされ、
前記可撓性の係合部材が横方向に伸びる突出部(52、352、552、723)を含み、該突出部(52、352、552、723)が前記第一の部材のチャンバ内の壁に係合することにより、骨が前記第一及び第二の部材のチャンバを通って成長するときに、前記第一の部材が前記第二の部材から離れて軸方向に動くのに抵抗し、
前記第一の部材が、前壁と、後壁と、該前壁及び該後壁の間を伸びる1対の対向する端部壁とを有し、
前記第一の部材が、前記前壁と前記後壁との間を伸びる1対の支柱(424、426)を更に備え、
前記対の支柱が、前記第一の部材の前記チャンバを3つのチャンバ(418、420、422)に分割し、
前記第二の部材が、前記上端面及び前記下端面の間を伸び且つ、該上端面及び該下端面にて開放する3つのチャンバ(331、333、335)を有し、
前記第二の部材の前記3つのチャンバの各々が、前記第一の部材が前記第二の部材と係合したとき、前記第一の部材の前記3つのチャンバのそれぞれ1つと整合され且つ、該それぞれ1つのチャンバと連通するようにした、装置。 - 請求項1の装置において、
前記第一の部材(400、401)及び前記第二の部材(310)の各々が、椎骨置換装置(300)の長手方向軸線(302)の横断方向にブーメラン形状の断面を有する、装置。 - 請求項1の装置において、
椎骨置換装置(10)が、貫通して伸びる長手方向軸線(11)を有し、
前記第一の部材(30)及び前記第二の部材(12)の各々が、前記長手方向軸線の横断方向にそら豆形の断面を有する、装置。 - 請求項1の装置において、
椎骨置換装置(500)が、貫通して伸びる長手方向軸線(502)を有し、
前記第一の部材(600、601)及び前記第二の部材(510)の各々が、前記長手方向軸線の横断方向に矩形の形状の断面を有する、装置。 - 請求項1の装置において、
前記第二の部材(510)が、前記上端面及び前記下端面の前記一方から伸びる1対の対向した可撓性の係合部材(520、521;523、525;720、721;723)を有し、
前記係合部材の各々が、前記第一の部材のチャンバ内に配置可能であり且つ、前記第一の部材の前記壁と係合して前記第一の部材が前記第二の部材に対して軸方向に動くのに抵抗するようにした、装置。 - 請求項1の装置において、
前記少なくとも1つの伸長部が、互いに対向する1対の伸長部(560、562;564、566;316、318;317、319)を備え且つ、前記第一の部材の前記壁の両端と係合し得るように前記チャンバ内に配置可能である、装置。 - 請求項19の装置において、
前記第一の部材の前記壁が、前記チャンバの両端に凹状湾曲部分(406、408)を有し、
前記対の伸長部(316、318;317、319)の各々が、前記壁の前記凹状湾曲部分と係合し得るようにされた凸状湾曲部を有する、装置。 - 請求項1の装置において、
前記チャンバが、中央チャンバ(422)と、前記中間チャンバの両側部における1対の端部チャンバ(418、420)とを備え、
前記係合部材が、前記中央チャンバ内に配置可能であり且つ、前記上端面及び前記下端面の前記一方から伸びる1対の伸長部(316、318;317、319)を更に備え、
前記伸長部が、前記対の端部チャンバのそれぞれのチャンバ内に配置可能である、装置。 - 請求項1の装置において、
前記少なくとも1つの係合部材が、1対の係合部材(520、521;523、525;720、721;723)を備え、
係合部材の各々には、前記第二の部材が一体に形成されており、また、該係合部材の各々は、前記第二の部材の前記上端面及び前記下端面の前記一方から伸びており、
係合部材の各々が、前記第一の部材に向けて外方に伸びる突出部(52、352、552、732)を有する、装置。 - 請求項22の装置において、
前記突出部(552)の各々が、前記係合部材の外端に向けてテーパーが付けられた截頭部分(553)を有する、装置。 - 請求項22の装置において、
前記係合部材の各々は、前記第二の部材と一体に形成された板状タブ(550、730)を有し、
該板状タブが、該タブに隣接する前記第二の部材の肉厚よりも薄い肉厚を有する、装置。 - 請求項22の装置において、
前記突出部(732)の各々が、前記上端面及び前記下端面の前記一方に対向する前記係合部材の一端に配置され、
前記係合部材が、前記チャンバを貫通して伸び、
前記第一の部材が前記第二の部材と係合したとき、前記突出部が前記第一の部材の前記第一の端面と係合するようにした、装置。 - 請求項22の装置において、
前記突出部(732)の各々が、前記上端面及び前記下端面の前記一方に向けて配向された係合面と、前記第一の部材が前記係合部材の上を通るのを容易にし得るように該係合面と対向するテーパー付き面(733)とを有する、装置。
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JP2009106783A (ja) | 2009-05-21 |
EP1490003B1 (en) | 2013-02-27 |
US20040236427A1 (en) | 2004-11-25 |
JP5006352B2 (ja) | 2012-08-22 |
JP5000687B2 (ja) | 2012-08-15 |
CA2479802A1 (en) | 2003-10-02 |
AU2003218315A1 (en) | 2003-10-08 |
WO2003079939A1 (en) | 2003-10-02 |
EP1490003A1 (en) | 2004-12-29 |
US6758862B2 (en) | 2004-07-06 |
AU2003218315B2 (en) | 2008-01-03 |
JP2005520629A (ja) | 2005-07-14 |
US7887594B2 (en) | 2011-02-15 |
US20030181980A1 (en) | 2003-09-25 |
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