JP7095897B2 - 接続用マイクロ繊維を含むマイクロ電極アレイ - Google Patents
接続用マイクロ繊維を含むマイクロ電極アレイ Download PDFInfo
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- JP7095897B2 JP7095897B2 JP2019529999A JP2019529999A JP7095897B2 JP 7095897 B2 JP7095897 B2 JP 7095897B2 JP 2019529999 A JP2019529999 A JP 2019529999A JP 2019529999 A JP2019529999 A JP 2019529999A JP 7095897 B2 JP7095897 B2 JP 7095897B2
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Description
金属フォイル:フレームに保持された厚さ約2μmの金箔から電極片を切り出した。ストリップに気相堆積によりパリレンC絶縁体を与えた。次に、所望の領域からのレーザービームで加熱することによって絶縁材を除去した。非絶縁遠位ゾーンは、約10μmから約30μmの長さを有していた。その支持を改善するために、フォイルの一面に水またはエタノールのような有機溶媒に溶解可能な材料の層を設けることができる。好ましい支持体材料はエタノールに可溶な低分子量ポリグリコールである。
- D H Reneker and I C Chun, Nanometre diameter fibres of polymer, produced by electrospinning. Nanotechnology 7 (1996) 216-223;
- Naya R et al., Recent advances in nanofiber fabrication techniques. Textile Research Journal 82,-2 (2012) 129-147;
- Matthews J A et al., Electrospinning of Collagen Nanofibers Biomacromolecules 3,-2 (2002) 232-238;
- Leach M K et al., Electrospinning Fundamentals: Optimizing Solution and Apparatus Parameters. J Vis Exp 47 (2011) e2494, doi : 10.3791/2494 (2011);
- Davidenko N et al., R.E, Optimization of UV irradiation as a binding site conserving method for crosslinking collagen based scaffolds. J Mat Sci. Materials in Science 27 (2016)14;
- Masutani E M et al., Increasing thermal stability of gelatin by UV induced cross-linking with glucose. Int J Biomater 2014 : 979636.
Claims (32)
- 中心アレイ軸を有する横長形状の微小電極アレイであって、
前記中心アレイ軸と実質的に平行に配置された、3本以上の可撓性横長形状の電気的に協働する微小電極であって、金属および/または導電性カーボンおよび/または導電性ポリマーの材料からなる前記微小電極を含み、
前記微小電極は、遠位端子部と中央部と近位端子部とを含み、前記微小電極は、前記遠位端子部の一部分を除いて電気絶縁され、
前記微小電極アレイは、前記微小電極の中央部分をアレイ軸に対して斜め方向に接続する非導電性マイクロ繊維をさらに含み、
前記微小電極アレイの少なくとも1つの微小電極が、他の2つ以上の微小電極によって画定される平面内に配置されていないことを特徴とする、微小電極アレイ。 - 前記マイクロ繊維が不織布である、請求項1に記載のアレイ。
- 前記マイクロ繊維が、2つ以上の微小電極および/または1つ以上の繊維に接着剤で取り付けられている、請求項1または2に記載のアレイ。
- 前記マイクロ繊維が、微小電極の軸方向に延びる領域の50%以上に沿って配置されている、請求項1から3のいずれか一項に記載のアレイ。
- 前記マイクロ繊維が生分解性である、請求項1から4のいずれか一項に記載のアレイ。
- 前記マイクロ繊維が弾性である、請求項1から4のいずれか一項に記載のアレイ。
- 前記マイクロ繊維が電界紡糸繊維である、請求項1に記載のアレイ。
- マイクロ繊維が、ポリエステル、ポリラクチド、ポリグリコリドまたはそれらの混合物もしくはコポリマー、電界紡糸アルブミン、糖タンパク質に富む粘液材料からなる群から選択される材料を含むかまたはそれからなる、請求項1に記載のアレイ。
- 2つ以上の微小電極が、水性体液中に溶解性および/または生分解性である生体適合性接着剤によって接続されている、請求項1から8のいずれか一項に記載のアレイ。
- 前記生体適合性接着剤が、溶解または分解される前に水性体液と接触すると膨張することができる、請求項9に記載のアレイ。
- 前記接着剤が、ゼラチン、ヒアルロン酸、ヒドロキシプロピルメチルセルロースなどのセルロース誘導体、およびそれらの混合物からなる群から選択されるか、または前記群の材料を含む、請求項9または10に記載のアレイ。
- 前記接着剤が層状である、請求項9から11のいずれか一項に記載のアレイ。
- 前記接着剤の内層の水性体液中での膨潤および/または溶解および/または分解の速度が、外層のものよりも小さい、請求項12に記載のアレイ。
- 外層が天然ゼラチンを含むまたは構成され、内層が架橋ゼラチンを含むまたは構成される、請求項12または13に記載のアレイ。
- 内層が100を超えるブルーム強度を有する、請求項12から14のいずれか一項に記載のアレイ。
- マイクロ繊維が、接着剤中に部分的にまたは完全に埋め込まれている、請求項9から15のいずれかに記載のアレイ。
- 関係する任意の対の微小電極間の距離が、100μm以下である、請求項1から16のいずれか一項に記載のアレイ。
- 微小電極の遠位部分および/または中央部分が穴または輪であることを含む、請求項1から17のいずれか一項に記載のアレイ。
- 前記マイクロ繊維が、穴または輪ではない微小電極部分上にのみ配置される、請求項18に記載のアレイ。
- 実質的に平行とは、中心軸からの微小電極の角度のずれが15°を超えないことを意味する、請求項1から19のいずれかに記載のアレイ。
- 前記アレイ軸が、前記微小電極の重心軸として画定される、請求項1から20のいずれかに記載のアレイ。
- 微小電極は、制御ユニットによって電気的に協働して制御される、請求項1から21のいずれか一項に記載のアレイ。
- 前記制御ユニットが、電気的に協働するそれぞれの微小電極から受信した電気信号を識別することができるソフトウェアを含む、請求項22に記載のアレイ。
- 信号源の位置を決定することが前記識別に基づく、請求項23に記載のアレイ。
- 請求項1から24のいずれかに記載の2つ以上の微小電極アレイを含むシステム。
- 2つ以上のアレイが、前記アレイ軸に対して斜め方向に非導電性マイクロ繊維によって接続される、請求項25に記載のシステム。
- 水性体液に可溶性の材料に完全にまたは部分的に埋め込まれている、請求項25または26に記載のシステム。
- 前記材料が炭水化物から構成されるか含む、請求項27に記載のシステム。
- 2つのアレイの軸間の距離が100μm以上である、請求項25から28のいずれか一項に記載のシステム。
- 微小電極は、制御ユニットによって電気的に協働して制御される、請求項25から29のいずれかに記載のシステム。
- 前記制御ユニットが、電気的に協働する異なる微小電極が受信した電気信号を識別することができるソフトウェアを含む、請求項30に記載のシステム。
- 信号源の位置を決定することが前記識別に基づく、請求項31に記載のシステム。
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