JP2015523192A - 形状適合性多孔質薄層コーティング及び製造方法 - Google Patents
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Abstract
Description
例1において、植込み型医療デバイスの製造方法が提供される。この方法は、基材上に第1の材料をエレクトロスピニング又はエレクトロスプレーすることにより細孔を有する繊維マトリクスを形成するステップを含む。繊維マトリクスを覆うように第2の材料が押出し又は成形され、これは第2の材料が繊維マトリクスの細孔の少なくとも一部を充填するように行われる。第2の材料が押出し又は成形された後、基材が取り除かれることで、内表面、外表面、及びルーメンを備える植込み型医療デバイスが形成される。
例3において、第1の材料がポリウレタン又はフルオロポリマー材料を含む、例1又は2に記載の植込み型医療デバイス。
例5において、基材を取り除いた後、繊維マトリクスが医療デバイスの外表面上にある、例1及び3〜4のいずれか一つに記載の植込み型医療デバイス。
例9において、医用電気リード線が、絶縁本体であって、その絶縁本体を貫通するルーメンを備えるとともに内表面及び外表面を形成する絶縁本体を含む。絶縁本体の内表面に多孔質層が配置され、この多孔質層は第1の材料を含む。絶縁本体は、第1の材料とは異なる第2の材料を含む。
例11において、第1の材料が、ポリウレタン及びフルオロポリマー材料のうちから選択される少なくとも1種を含む、例9又は10に記載の医用電気リード線。
例13において、多孔質層が、エレクトロスピニング又はエレクトロスプレーされた層である、例9〜12のいずれか一つに記載の医用電気リード線。
例15において、多孔質層が絶縁本体よりも高い耐摩耗性を有する、例9〜14のいずれか一つに記載の医用電気リード線。
例17において、植込み型医療デバイスの製造方法が提供される。この方法は、基材上に第1の材料の多孔質層を形成するステップと、その層を覆うように第2の材料を、第2の材料が上記層の細孔の少なくとも一部を充填するように押出し又は成形するステップと、第2の材料を押出し又は成形した後に基材を取り除くことにより、内表面、外表面、及びルーメンを備える植込み型医療デバイスを形成するステップとを含む。
例19において、上記層が植込み型医療デバイスの外表面上にある、例17又は18に記載の方法。
図3は、図2の医用電気リード線110の線3−3に沿った例示的断面図を示し、これは絶縁本体117とルーメン118と多孔質層120とを含む。一部の実施形態では、ルーメン118は基端部112から先端部114まで医用電気リード線110及び絶縁本体117を貫通して延在する。一部の実施形態では、ルーメン118は小径であってもよい。例えば、ルーメン18は直径が約127、254、又は381マイクロメートル(0.005インチ、0.010インチ、又は0.015インチ)又は直径が約1016、1143、又は1270マイクロメートル(0.040インチ、0.045インチ、又は0.050インチ)であってもよく、又は前述の値の組合せによって境界が定められる範囲内であってもよい。一部の実施形態では、ルーメン118は絶縁本体117の長さに沿って一定の又は実質的に一定の直径を有し得る。他の実施形態では、ルーメン118の直径は絶縁本体117の長さに沿って変化し得る。例えば、ルーメン118の直径が先端部114又は基端部112に向かって徐々に又は階段状に減少してもよい。絶縁本体117及びルーメン118は、直径を有する、従って円筒形状を有するものとして記載されるが、絶縁本体117及びルーメン118は任意の好適な断面形状であってよい。
特定の実施形態では、多孔質層120は絶縁本体117とは異なる疎水性を有し得る。特定の実施形態では、多孔質層120は絶縁本体117よりも低い疎水性を有し得る。他の実施形態では、多孔質層120は絶縁本体117よりも高い疎水性を有し得る。
Claims (14)
- 植込み型医療デバイスの製造方法であって、
基材上に第1の材料をエレクトロスピニング又はエレクトロスプレーすることにより細孔を有する繊維マトリクスを形成するステップと、
前記繊維マトリクスを覆うように第2の材料を、前記第2の材料が前記繊維マトリクスの細孔の少なくとも一部を充填するように押出し又は成形するステップと、
前記第2の材料を押出し又は成形した後に前記基材を取り除くことにより、内表面、外表面、及びルーメンを備える植込み型医療デバイスを形成するステップと
を含む方法。 - 前記基材を取り除いた後、前記繊維マトリクスが前記植込み型医療デバイスの内表面上にある、請求項1に記載の方法。
- 前記基材を取り除いた後、前記繊維マトリクスが前記植込み型医療デバイスの外表面上にある、請求項1に記載の方法。
- 前記繊維マトリクスと前記細孔中の前記第2の材料とが層を形成し、前記層が前記第2の材料よりも低い摩擦係数を有する、請求項1〜3のいずれか一項に記載の方法。
- 前記繊維マトリクスと前記細孔中の前記第2の材料とが層を形成し、前記層が前記第2の材料よりも高い耐摩耗性を有する、請求項1〜4のいずれか一項に記載の方法。
- 前記押出し又は成形するステップの後に前記第2の材料が硬化される、請求項1〜5のいずれか一項に記載の方法。
- 医用電気リード線であって、
絶縁本体を貫通するルーメンを備えるとともに内表面及び外表面を形成する絶縁本体と、
前記絶縁本体の内表面に配置された多孔質層であって、前記多孔質層が第1の材料を含み、且つ前記絶縁本体が、前記第1の材料とは異なる第2の材料を含む、多孔質層と
を含む医用電気リード線。 - 前記多孔質層が少なくとも部分的に前記絶縁本体に埋め込まれている、請求項8に記載の医用電気リード線。
- 前記多孔質層が、エレクトロスピニング又はエレクトロスプレーされた層である、請求項8又は9に記載の医用電気リード線。
- 前記多孔質層が前記絶縁本体よりも低い摩擦係数を有する、請求項8〜10のいずれか一項に記載の医用電気リード線。
- 前記多孔質層が前記絶縁本体よりも高い耐摩耗性を有する、請求項8〜11のいずれか一項に記載の医用電気リード線。
- 前記多孔質層が約178マイクロメートル以下の厚さである、請求項8〜12のいずれか一項に記載の医用電気リード線。
- 前記第2の材料がシリコーンを含む、請求項1〜13のいずれか一項に記載の医用電気リード線。
- 前記第1の材料が、ポリウレタン及びフルオロポリマー材料のうちから選択される少なくとも1種を含む、請求項1〜14のいずれか一項に記載の医用電気リード線。
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US10513576B2 (en) | 2009-01-12 | 2019-12-24 | University of Masschusetts Lowell | Polyisobutylene-based polyurethanes |
US10526429B2 (en) | 2017-03-07 | 2020-01-07 | Cardiac Pacemakers, Inc. | Hydroboration/oxidation of allyl-terminated polyisobutylene |
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US8644952B2 (en) | 2009-09-02 | 2014-02-04 | Cardiac Pacemakers, Inc. | Medical devices including polyisobutylene based polymers and derivatives thereof |
US8374704B2 (en) | 2009-09-02 | 2013-02-12 | Cardiac Pacemakers, Inc. | Polyisobutylene urethane, urea and urethane/urea copolymers and medical leads containing the same |
WO2014074876A1 (en) | 2012-11-09 | 2014-05-15 | Cardiac Pacemakers, Inc. | Implantable lead having a lumen with a wear-resistant liner |
WO2016100666A1 (en) * | 2014-12-18 | 2016-06-23 | Cardiac Pacemakers, Inc. | Fibrous joinery interface between structures |
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- 2013-08-02 JP JP2015525626A patent/JP6148339B2/ja not_active Expired - Fee Related
- 2013-08-02 US US13/958,193 patent/US20140074201A1/en not_active Abandoned
- 2013-08-02 EP EP13747626.3A patent/EP2895309B1/en not_active Not-in-force
- 2013-08-02 AU AU2013316027A patent/AU2013316027B2/en not_active Ceased
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US10835638B2 (en) | 2017-08-17 | 2020-11-17 | Cardiac Pacemakers, Inc. | Photocrosslinked polymers for enhanced durability |
US11472911B2 (en) | 2018-01-17 | 2022-10-18 | Cardiac Pacemakers, Inc. | End-capped polyisobutylene polyurethane |
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Also Published As
Publication number | Publication date |
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AU2013316027A1 (en) | 2015-02-26 |
CN104602888A (zh) | 2015-05-06 |
EP2895309B1 (en) | 2017-04-26 |
WO2014042779A3 (en) | 2014-06-19 |
JP6148339B2 (ja) | 2017-06-14 |
CN104602888B (zh) | 2017-09-22 |
US20140074201A1 (en) | 2014-03-13 |
WO2014042779A9 (en) | 2014-09-18 |
AU2013316027B2 (en) | 2016-03-03 |
WO2014042779A2 (en) | 2014-03-20 |
EP2895309A2 (en) | 2015-07-22 |
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