JP2011509161A - 中枢神経系病理を取り扱う装置及び方法 - Google Patents
中枢神経系病理を取り扱う装置及び方法 Download PDFInfo
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Abstract
Description
ラット脳損傷とサブ気圧曝露
実験1
脳挫傷のモデルと挫傷した脳の真空処置を開発するために実験を行った。300グラムのスプレーグ・ダウレイ ラット(Sprague Dawley rat)を12匹確保し、飼育状態に慣らさせた。それらアニマルのうちの二匹について、他の処置をする前に、(ドイツ,エットリンゲンに所在のブルカー・バイオスピン社製のBruker Biospin Horizontal Bore 7 Tesla small animal scannerを用いて)脳のMRIスキャン画像を確保した。そのアニマルにイソフルランを投与して(2%吸入)アニマルを鎮静化させて、脳のスキャン画像を得た。アニマルを麻酔から目覚めさせてケージに戻した。損傷を作り出すために、外科手術の日に、アニマルにイソフルランを投与して(2−2.5%吸入)アニマルを鎮静化させた。頭のてっぺんを剃って、脱毛剤で毛を除去した。図1に示したように中間ラインに沿った頭蓋骨5に至る切開手術を施した。頭蓋骨の右側を除去して脳の右半分を露出させ、硬膜の右は無傷のままにさせた。そのアニマルを(バージニア州,リッチモンドに所在のアムシェン インスツルメンツ社製のPneumatic (Cortical)Impact Device)衝撃装置上の脳定位固定ホルダー(stereotaxic holder)内に置いた。次に、各アニマルの右前脳に衝撃を与えた。第一のアニマルに関しては、直径3mmのロッドを脳の2.0mmの深さに至るまで衝突させた(下掲表1、ラットNo.1)。この外傷は、あまり十分なものとは認められなかった。アニマル2については、外傷の重症度を増加させることを企てた。第二のアニマルに関しては、直径6mmのロッドを脳の2.5mmの深さに至るまで衝突させた(下掲表1、ラットNo.2)。この外傷は、重症過ぎると認められた。残りのアニマルに関しては、直径6mmのロッドを右前脳の2.0mmの深さに至るまで衝突させた(下掲表1、ラットNos.3−12)。手術前にMRIスキャンを実施した二匹のアニマルに関しては、双方共、5分内のポストインパクション(post impaction)で死亡した(下掲表1、ラットNo.3及び8)。
ラット1:モデルを生育させるためのアニマル。インパクションのために小さい直径(3mm)のロッドを使用。実験結果に含まれていない。
外傷自体に起因する初期死(initial death)で、次に、興奮性アミノ酸の放出,乳酸塩等の成長の結果として継続死(ongoing death)となる、外傷性脳損傷に追従する細胞死は二相性である。興奮性アミノ酸(グルタミン酸塩、アスパラギン酸塩)の放出によって、作動筋開口腔(agonist opened channel)を介してイオンホメオスタシスに混乱を生じさせて、エネルギーデマンド(energy demand)を増大させ、乳酸塩の生成を増大させる。グルタミン酸塩が高レベルに増加することは、乳酸塩が高レベルに増大することに関連することが証明されている。乳酸塩の増大は、阻害された供給(虚血)中にエネルギーデマンドの増大を示して、受動的な結果に逆関係する。乳酸塩の生成によって、アポプトテイックニューロン細胞死(apoptotic neuronal cell death)に至る。
Claims (63)
- 損傷した中枢神経系組織を処置するための装置であって、
多孔質生体吸収性部材とサブ気圧を発生させるための真空源とを有し、
前記多孔質生体吸収性部材が、該多孔質生体吸収性部材の一つ又はそれ以上の孔と処置される中枢神経系との間の気体連通を可能にさせるように構成された多孔質構造を有すると共に、前記損傷した中枢神経系の近くに配置される、前記多孔質生体吸収性部材の少なくとも一つの選択された面に、組織が中で成長するのを阻止するのに十分小さな孔を有し、
前記真空源が、処置される前記中枢神経系組織にサブ気圧を供給するために前記多孔質生体吸収性部材と気体連通して配置されている、損傷した中枢神経系組織を処置するための装置。 - 前記多孔質生体吸収性部材が、オープンセルコラーゲンを含んでいる、請求項1に記載の装置。
- 前記多孔質生体吸収性部材が、ポリジオールシトレイトを含んでいる、請求項1又は2に記載の装置。
- 前記多孔質生体吸収性部材が、ポリグリコール酸材料及び/又はポリ酢酸材料を含んでいる、請求項1〜3の何れか一項に記載の装置。
- 前記多孔質生体吸収性部材が、オープンセルフォームを含んでいる、請求項1〜4の何れか一項に記載の装置。
- 前記多孔質生体吸収性部材が、合成ポリマー,可撓性シート状メッシュ及び多孔質シートの一つ又はそれ以上を含んでいる、請求項1〜5の何れか一項に記載の装置。
- 前記多孔質生体吸収性部材が、エラスチン,ヒアルロン酸又はアルギン酸塩及びそれらの混合物を含んでいる、請求項1〜6に記載の装置。
- 前記多孔質生体吸収性部材が、エレクトロスパン材料を含んでいる、請求項1〜7の何れか一項に記載の装置。
- 前記多孔質生体吸収性部材が、キャスト材料を含んでいる、請求項1〜8の何れか一項に記載の装置。
- 前記多孔質生体吸収性部材が、印刷された材料を含んでいる、請求項1〜9の何れか一項に記載の装置。
- 前記多孔質生体吸収性部材が、多孔質材料から成るリボンを含んでいる、請求項1〜10の何れか一項に記載の装置。
- 前記多孔質生体吸収性部材が、それの少なくとも一つの選択された面に、線維芽細胞と前記中枢神経系細胞の寸法よりも小さな孔を有している、請求項1〜11の何れか一項に記載の装置。
- 前記多孔質生体吸収性部材が、生体吸収性材料の内部に、線維芽細胞と前記中枢神経系細胞の寸法よりも大きい寸法の孔を有している、請求項1〜12の何れか一項に記載の装置。
- 前記多孔質生体吸収性部材が、前記選択された面と別の位置に、線維芽細胞と前記中枢神経系細胞の寸法よりも小さな孔を有している、請求項1〜13の何れか一項に記載の装置。
- 前記多孔質生体吸収性部材の孔寸法が、プロテイン、アルブミンが移動することを可能にさせるのに十分大きな寸法である、請求項1〜14の何れか一項に記載の装置。
- 前記多孔質生体吸収性部材が、サブ気圧が透過するのを阻止するべくシールされた少なくとも一つ面を有している、請求項1〜15の何れか一項に記載の装置。
- 前記多孔質生体吸収性部材が、それの前記選択された面以外の面に、肉芽組織の生成を促進させるのに十分大きな寸法の孔を有している、請求項1〜16の何れか一項に記載の装置。
- 前記真空源が、真空ポンプを含んでいる、請求項1〜17の何れか一項に記載の装置。
- 前記損傷した中枢神経系組織を被覆するカバーを有し、前記中枢神経系組織における前記カバー下でのサブ気圧を維持させるように構成されている、請求項1〜18の何れか一項に記載の装置。
- 前記カバーが、自己接着性シートを含んでいる、請求項1〜19の何れか一項に記載の装置。
- 前記真空源が、約25mm Hgのサブ気圧を供給するよう構成されている、請求項1〜20の何れか一項に記載の装置。
- 前記真空源が、約25mm Hgまでのサブ気圧を供給するよう構成されている、請求項1〜21の何れか一項に記載の装置。
- 患者の損傷した中枢神経系組織を処置するための方法であって、
i.多孔質部材の一つ又はそれ以上の孔と前記損傷した中枢神経系組織との間に気体連通を提供するために、前記多孔質を前記損傷した中枢神経系組織の近くに配置する工程と、
ii.前記損傷した中枢神経系組織におけるサブ気圧を維持させるための領域を前記損傷した中枢神経系組織の回りに提供するべく、多孔質部材を前記損傷した中枢神経系組織の近くにインサチュでシールするための工程と、
iii.前記損傷した中枢神経系組織におけるサブ気圧を発生させるための真空システムを前記多孔質部材と効果的に接続させるための工程と、
iv.前記真空システムを起動させて前記損傷した中枢神経系組織においてサブ気圧を提供するための工程を含んでいる、患者の損傷した中枢神経系組織を処置するための方法。 - 前記多孔質部材を配置する前記工程が、多孔質部材を損傷した脳細胞の近くに位置させることを含んでいる、請求項23に記載の方法。
- 頭蓋内圧を実質的に通常な予損傷生理学的状態に標準化させるのに十分な時間、前記損傷した組織におけるサブ気圧を維持させることを含んでいる、請求項23又は24に記載の方法。
- 組織ボリュームと密度とを実質的に通常な予損傷生理学的状態に標準化させるのに十分な時間、前記損傷した組織におけるサブ気圧を維持させることを含んでいる、請求項23〜25の何れか一項に記載の方法。
- 血圧及び心拍数の少なくとも一つを実質的に通常な予損傷生理学的状態に標準化させるのに十分な時間、前記損傷した組織におけるサブ気圧を維持させることを含んでいる、請求項23〜26の何れか一項に記載の方法。
- 頭蓋内圧を臨床的に望ましいレベルまで標準化させるのに十分な時間、前記損傷した組織におけるサブ気圧を維持させることを含んでいる、請求項23〜27の何れか一項に記載の方法。
- 組織ボリュームと密度とを臨床的に望ましいレベルまで標準化させるのに十分な時間、前記損傷した組織におけるサブ気圧を維持させることを含んでいる、請求項23〜28の何れか一項に記載の方法。
- 血圧と心拍数の少なくとも一方を臨床的に望ましいレベルまで標準化させるのに十分な時間、前記損傷した組織におけるサブ気圧を維持させることを含んでいる、請求項23〜29の何れか一項に記載の方法。
- サイトカイン,有害な物質又はその他のメディエーターを臨床的に望ましいレベルまで減少させるのに十分な時間、前記損傷した組織におけるサブ気圧を維持させることを含んでいる、請求項23〜30の何れか一項に記載の方法。
- 患者の意識の状態の臨床的向上を達成するのに十分な時間、前記損傷した組織におけるサブ気圧を維持させることを含んでいる、請求項23〜31の何れか一項に記載の方法。
- グラスゴースコアーの向上を達成するのに十分な時間、前記損傷した組織におけるサブ気圧を維持させることを含んでいる、請求項23〜32の何れか一項に記載の方法。
- サブ気圧を維持させる前記工程が、サブ気圧を約25mm Hgに維持させることを含んでいる、請求項23〜33の何れか一項に記載の方法。
- 多孔質部材をインサチュでシールする前記工程が、前記損傷した組織の上にカバーを位置させ、前記損傷した組織におけるサブ気圧を維持させるために前記カバーを前記損傷した組織の近くの組織にシールすることを含んでいる、請求項23〜34の何れか一項に記載の方法。
- 前記損傷した組織の上にカバーを位置させる前記工程が、可撓性の接着性シートを損傷した組織の上に位置させることを含んでいる、請求項35に記載の方法。
- 前記損傷した組織を取り囲んでいる組織にカバーをシールする前記工程が、前記カバーを前記損傷した組織を取り囲んでいる組織に接着シールすることを含んでいる、請求項35に記載の方法。
- 前記カバーを位置させる前記工程が、前記損傷した組織の上に自己接着性シートを位置させることを含み、前記カバーをシールする前記工程が、前記損傷した組織を取り囲んでいる組織に対して前記自己接着性シートを接着シールさせて、前記自己接着性シートと前記損傷した組織を取り囲んでいる組織との間にシールを提供することを含んでいる、請求項35に記載の方法。
- 多孔質部材を位置させる前記工程が、前記多孔質部材を前記損傷した組織の上に位置させることを含んでいる、請求項23〜38の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、前記多孔質部材を前記損傷した組織の内に位置させることを含んでいる、請求項23〜38の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、多孔質オープンセルコラーゲン部材を前記損傷した組織の近くに位置させることを含んでいる、請求項23〜40の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、ポリグリコール酸材料及び/又はポリ酢酸材料を前記損傷した組織の近くに位置させることを含んでいる、請求項23〜41の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、合成ポリマーを前記損傷した組織の近くに位置させることを含んでいる、請求項23〜42の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、可撓性シート状メッシュを前記損傷した組織の近くに位置させることを含んでいる、請求項23〜43の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、オープンセルポリマーフォームを前記損傷した組織の近くに位置させることを含んでいる、請求項23〜44の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、フォーム片を前記損傷した組織の近くに位置させることを含んでいる、請求項23〜45の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、多孔質シートを前記損傷した組織の近くに位置させることを含んでいる、請求項23〜46の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、ポリビニールアルコールフォームを前記損傷した組織の近くに位置させることを含んでいる、請求項23〜47の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、ポリエチレン材料及び/又はポリエステル材料を前記損傷した組織の近くに位置させることを含んでいる、請求項23〜48の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、ポリジオールシトレイト材を前記損傷した組織の近くに位置させることを含んでいる、請求項23〜49の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、ポリジオールシトレイトとコラーゲンとを含んだ部材を前記損傷した組織の近くに位置させることを含んでいる、請求項23〜40の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、エラスチン,ヒアルロン酸,アルギン酸塩又はこれらの混合物を含んだ部材を前記損傷した組織の近くに位置させることを含んでいる、請求項23〜51の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、その多孔質部材を中枢神経系の外傷部上に位置させることを含んでいる、請求項23〜52の何れか一項に記載の方法。
- 真空システムを効果的に接続する前記工程が、チューブをそれの近位端で吸引源に接続し、遠位端を前記多孔質部材の上に位置させることを含んでいる、請求項23〜53の何れか一項に記載の方法。
- 前記チューブがその遠位端に少なくとも一つの穴を有し、チューブを接続する工程が、前記少なくとも一つの穴を前記多孔質部材と気体連通させることを含んでいる、請求項23〜54の何れか一項に記載の方法。
- 真空システムを効果的に接続させるための前記工程が、チューブをそれの近位端で吸引源に接続し、遠位端を前記多孔質部材に埋め込むことを含んでいる、請求項23〜53の何れか一項に記載の方法。
- 前記チューブがその遠位端に少なくとも一つの穴を有し、チューブを接続する前記工程が、前記少なくとも一つの穴を前記多孔質部材内に埋め込むことを含んでいる、請求項56に記載の方法。
- サブ気圧を維持させる前記工程が、サブ気圧を75mm Hg以下に維持させることを含んでいる、請求項23〜57の何れか一項に記載の方法。
- 多孔質部材をインサチュでシールする前記工程が、組織を前記多孔質部材の適所に縫合、吻合又はクリッピングすることを含んでいる、請求項23〜57の何れか一項に記載の方法。
- 真空システムを起動させてサブ気圧を提供する前記工程が、サブ気圧の生成と非生成とを交互に実施することを含んでいる、請求項23〜59の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、多孔質エレクトロスパン部材を損傷した組織の近くに位置させることを含んでいる、請求項23〜60の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、多孔質キャスト部材を損傷した組織の近くに位置させることを含んでいる、請求項23〜61の何れか一項に記載の方法。
- 多孔質部材を位置させる前記工程が、多孔質の印刷された部材を損傷した組織の近くに位置させることを含んでいる、請求項23〜62の何れか一項に記載の方法。
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KR101600041B1 (ko) * | 2007-10-10 | 2016-03-03 | 웨이크 포리스트 유니버시티 헬스 사이언시즈 | 척수 조직 치료를 위한 장치 및 방법 |
RU2517588C2 (ru) | 2008-01-09 | 2014-05-27 | Уэйк Форест Юниверсити Хелс Сайенсиз | Устройство и способ лечения патологий центральной нервной системы |
AU2009270900B2 (en) | 2008-07-18 | 2015-03-26 | Wake Forest University Health Sciences | Apparatus and method for cardiac tissue modulation by topical application of vacuum to minimize cell death and damage |
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Patent Citations (5)
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JP2003521962A (ja) * | 1999-04-09 | 2003-07-22 | ケーシーアイ ライセンシング インコーポレイテッド | 創傷部治療装置 |
JP2005034483A (ja) * | 2003-07-17 | 2005-02-10 | Unitika Ltd | 減圧治療用創傷被覆パッドおよび減圧治療装置 |
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Also Published As
Publication number | Publication date |
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KR101597699B1 (ko) | 2016-02-29 |
JP5925990B2 (ja) | 2016-05-25 |
IL249528A0 (en) | 2017-02-28 |
HK1201210A1 (en) | 2015-08-28 |
IL206899A0 (en) | 2010-12-30 |
EP2237812A4 (en) | 2015-04-01 |
EP2237812A1 (en) | 2010-10-13 |
WO2009089435A1 (en) | 2009-07-16 |
AU2009204094A1 (en) | 2009-07-16 |
RU2010133246A (ru) | 2012-02-20 |
US8764794B2 (en) | 2014-07-01 |
IL206899A (en) | 2016-12-29 |
CN102014980B (zh) | 2014-04-09 |
US20130072827A1 (en) | 2013-03-21 |
ZA201004517B (en) | 2011-04-28 |
KR20100118108A (ko) | 2010-11-04 |
CN103990184A (zh) | 2014-08-20 |
CA2710880C (en) | 2017-10-31 |
AU2009204094B2 (en) | 2014-07-24 |
US20140350497A1 (en) | 2014-11-27 |
US20090254120A1 (en) | 2009-10-08 |
CA2710880A1 (en) | 2009-07-16 |
US8267960B2 (en) | 2012-09-18 |
BRPI0906939A2 (pt) | 2017-06-13 |
RU2517588C2 (ru) | 2014-05-27 |
IL249528B (en) | 2021-06-30 |
CN102014980A (zh) | 2011-04-13 |
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