JP2009534093A - 高圧力バルーン - Google Patents
高圧力バルーン Download PDFInfo
- Publication number
- JP2009534093A JP2009534093A JP2009506483A JP2009506483A JP2009534093A JP 2009534093 A JP2009534093 A JP 2009534093A JP 2009506483 A JP2009506483 A JP 2009506483A JP 2009506483 A JP2009506483 A JP 2009506483A JP 2009534093 A JP2009534093 A JP 2009534093A
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- JP
- Japan
- Prior art keywords
- balloon
- fiber
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- reinforced
- web
- 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.)
- Granted
Links
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Images
Classifications
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- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/04—Macromolecular materials
- A61L29/049—Mixtures of macromolecular compounds
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- A—HUMAN NECESSITIES
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- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
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- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
- A61L29/143—Stabilizers
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- A—HUMAN NECESSITIES
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- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1002—Balloon catheters characterised by balloon shape
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1027—Making of balloon catheters
- A61M25/1029—Production methods of the balloon members, e.g. blow-moulding, extruding, deposition or by wrapping a plurality of layers of balloon material around a mandril
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- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/104—Balloon catheters used for angioplasty
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
Description
本発明は様々な形態で実施することができるが、本明細書においては、特定の実施例について詳細に記載する。実施例の記載は、本発明の原理を例示するものであり、本発明を例示された特定の実施例に限定するものではない。
本発明によるバルーンは医療器具の使用に特に好適であり、例えば、バルーンの血管形成カテーテル上にて、ステント搬送システム、潅流バルーン器具、カッティングバルーン(cutting balloon)、冷凍形成器具等における医療器具の使用に好適である。通常これらはカテーテルやプローブ器具上に取り付けられる。
図4は図3のものに外層バルーン140を取り付けて複合バルーン200を完成させたものを示す。マトリックス材料28及びファイバーウェブ126は基層バルーンによって設けられる層122及び外層バルーンによって設けられる層140によって挾持される。
(基層バルーン)
態様において本発明は複合バルーンやその製造方法に関し、これらにおいてウェブ材料は複合バルーンの一部となる基層バルーンの構造体上に適用するファイバーから形成される。
(ファイバーウェブ)
ウェブを形成する様々な技術が周知である。好適なウェブは編組物(braids)、織物、網体、螺旋巻き、ニットや、粗紡であってもよい。例えば異方性の長尺方向の延長と径を拡張する性能が望ましい場合にウェブは異なる材料から形成されてもよい。
(摩擦増大)
基層バルーンの円錐部に取り付けられるウェブの結合性を補助するために、摩擦増大材料が基層バルーン及びウェブ間の境界面にて少なくとも円錐形部上を覆って設けられてもよい。ウェブのファイバーは摩擦増大材料によりコーティングされてもよく、又は摩擦増大材料の層がウェブのファイバーを取り付けるに先立って基層バルーンの少なくとも円錐形部に取り付けられてもよい。或いはその両者であってもよい。摩擦増大材料は基層バルーン及びウェブの間の境界面にて、バルーンの部分上を覆って設けられてもよく、例えば、胴体部及び本体部のうち少なくともいずれか一方に設けられてもよい。
(マトリックス材料)
ポリマーマトリックス材料はウェブ上、及び基層バルーンの暴露された部分上に設けられる。マトリックス材料は使用される技術下において少なくとも部分的にマトリックス材料に暴露される材料に結合する必要がある。暴露される材料は1つ以上のウェブファイバー材料、基層バルーン、及び仮に使用されるなら摩擦増大材料であってもよい。マトリックス材料は摩擦増大材料と同一であるか、類似したものであってもよい。マトリックス材料は基層バルーンのバルク材と同一であるか、類似するものであってもよく、或いは摩擦増大材料及び基層バルーン材料の両者と全く異なる材料であってもよい。実施例においてマトリックス材料は熱により活性化可能であり、即ち、塗布後に接着性能が熱により活性化可能である。
(外層バルーン)
外層バルーンは基層バルーンとファイバーウェブとマトリックス材料との組立体上に設けられ、複合バルーンを形成する。
(複合バルーンの形成)
上記層の組み合わせは上述したように柔軟性を備え、高い強度と高い破裂圧力とを有する複合バルーンを形成する。複合バルーンの形成において、基層バルーン122は従来技術によるモールド形成工程を使用して形成可能にして、且つ変形可能である。モールド成形された基層バルーンは膨張され両端が密封される。基層バルーン122は任意により感圧式接着剤等の摩擦増大材料124によりコーティングされてもよい。ファイバーウェブ126は好適にはSpectra(登録商標)やVectran(登録商標)等のファイバーの編組として基層バルーン122の表面に取り付けられる。続いてファイバーウェブ126はマトリックス材料128により包含される。実施例において、乾燥時にホットメルト接着性能を有する溶剤や散布剤、或いは高分子製剤が使用されてもよい。
通常基層及び外層を形成する条件は略同一であり、従ってこれらは加熱中に類似の反応を示す。しかしながら実施例において、加熱中に外層バルーンが僅かに収縮して基層バルーンが変化しない状態を保持するか僅かに膨張するように、異なる温度や圧力の条件にて基層バルーン及び外層バルーンが形成されることが有効である。これらの技術は外層バルーンの接着マトリックス材料に対する接着圧力を高め、全体的なバルーンの厚みを更に最小限にするようにこれらの間のファイバーのストランドを平坦にすることを補助する。
(ファイバーマトリックス材対バルーンの厚みの比率)
態様において本発明は全体的なバルーンの厚みのために使用されるファイバーとマトリックス材料との比率に関する。
(例)
基層バルーンはPebax(登録商標)7233の高分子材から成る押出管を径方向に拡張することにより準備された。基層バルーンはおおよそ0.0016インチ(約40.64マイクロメートル)の本体領域における平均的な二重の壁厚を有した。モールド成形による径はおおよそ8mmであり、モールド成形による本体の長さはおおよそ2cmである。基層バルーンは従来技術の工程に従ったエチレンオキシドにより殺菌された。この段階において、3つのバルーンが比較のために操作され、編み組みされずにそのままの状態を保持された。
Pebax(登録商標)7233の高分子材の外層バルーンが同様の方法によって、基層バルーンと同一の寸法により準備された。上述した工程により形成されて得られたバルーンはファイバーマトリックス比が0.73であり、平均の破裂圧力が30atm(約3040kPa)であった。
Claims (31)
- 下部に位置するバルーンの層と、下部に位置するバルーンの層の上部に設けられたファイバーウェブと、同ウェブを包含するマトリックス材料と、同ファイバーウェブ及びマトリックス材料の上部に設けられる径方向に配向された高分子材から成る上部に位置するバルーンの層とを備えることを特徴とするファイバーにより補強された重合複合バルーン。
- 前記マトリックス材料は接着剤により基層バルーンの層とファイバーウェブと上部に位置するバルーンの層とに結合されることを特徴とする請求項1に記載のファイバーにより補強された重合複合バルーン。
- 前記予め形成された外層バルーンは径方向に配向されることを特徴とする請求項1に記載のファイバーにより補強された重合複合バルーン。
- 前記下方に位置するバルーンの層もまた径方向に配向されることを特徴とする請求項3に記載のファイバーにより補強された重合複合バルーン。
- 前記下方に位置するバルーンの層及び上部に位置するバルーンの層の両者は二軸配向されることを特徴とする請求項4に記載のファイバーにより補強された重合複合バルーン。
- 前記マトリックス材料は接着剤から成ることを特徴とする請求項1に記載のファイバーにより補強された重合複合バルーン。
- 前記マトリックス材料は加熱により活性化可能な接着剤であることを特徴とする請求項6に記載のファイバーにより補強された重合複合バルーン。
- 前記ファイバーウェブのファイバーは1マイクロメートル乃至50マイクロメートルの径を有することを特徴とする請求項1に記載のファイバーにより補強された重合複合バルーン。
- 前記ファイバーウェブのファイバーは約10デニル乃至約100デニルの範囲の線形質量密度を有することを特徴とする請求項1に記載のファイバーにより補強された重合複合バルーン。
- 前記複合バルーンは0.51乃至約0.73のファイバーマトリックス比Rを有することと、Rは基層バルーン及び外層バルーン間のファイバー及びマトリックス材料の厚みを全体の壁厚で割ったものとして定義されることとを特徴とする請求項1に記載のファイバーにより補強された重合複合バルーン。
- 前記下方に位置するバルーンの層及びファイバーウェブの間に摩擦増大材料から成る層を更に備えることを特徴とする請求項1に記載のファイバーにより補強された重合複合バルーン。
- 前記摩擦増大材料は弾性重合体から成ることを特徴とする請求項11に記載のファイバーにより補強された重合複合バルーン。
- 前記ファイバー材料はアラミドと超高分子量ポリオレフィンと液晶高分子材とこれらの混合物から成る群から選択されることを特徴とする請求項1に記載のファイバーにより補強された重合複合バルーン。
- 前記下部に位置するバルーンの層はポリウレタンと、ポリエステル及び共重合ポリエステルと、ポリカーボネートと、ポリアミド/ポリエーテルブロック共重合体と、ポリエステル/ポリエーテルセグメントから成るブロック共重合体と、シリコンポリカーボネート共重合体と、ポリアミドと、熱可塑性ポリイミドと、ポリアセタールと、液晶高分子材と、ポリエーテルエーテルケトンと、ポリエーテルスルホンと、これらの組み合わせから成る群から選択される高分子材から成ることを特徴とする請求項1に記載のファイバーにより補強された重合複合バルーン。
- 前記上部に位置するバルーンの層はポリウレタンと、ポリエステル及び共重合ポリエステルと、ポリカーボネートと、ポリアミド/ポリエーテルブロック共重合体と、ポリエステル/ポリエーテルセグメントから成るブロック共重合体と、シリコンポリカーボネート共重合体と、ポリアミドと、熱可塑性ポリイミドと、ポリアセタールと、液晶高分子材と、ポリエーテルエーテルケトンと、ポリエーテルスルホンと、これらの組み合わせから成る群から選択される高分子材から成ることを特徴とする請求項1に記載のファイバーにより補強された重合複合バルーン。
- カテーテルやプローブ上に取り付けられる請求項1に記載のバルーンを備える医療器具。
- 予め形成された基層バルーンを提供する工程と、
ファイバーのウェブを同基層バルーンの外面に取り付ける工程と、
基層バルーン及びファイバーマトリックスの組立体を形成すべく同ウェブをマトリックス材料により包含させる工程と、
予め形成された外層バルーンを提供する工程と、
該基層バルーン及びファイバーマトリックスの組立体を予め形成された外層バルーン内に挿入する工程と、
ファイバーにより補強された複合バルーンを形成すべく該組立体及び外層バルーンを連結する工程とを含むことを特徴とする医療器具のファイバーにより補強された複合バルーンを予め形成する方法。 - 前記予め形成された外層バルーンは径方向に配向されることを特徴とする請求項17に記載の方法。
- 前記予め形成された基層バルーンもまた径方向に配向されることを特徴とする請求項18に記載の方法。
- 前記基層バルーンの層及び外層バルーンの層の両者は二軸配向されることを特徴とする請求項17に記載の方法。
- 前記マトリックス材料は、接着剤から成ることを特徴とする請求項17に記載の方法。
- 前記マトリックス材料は、加熱により活性化可能な接着剤であることを特徴とする請求項17に記載の方法。
- 前記ファイバーウェブのファイバーは1マイクロメートル乃至50マイクロメートルの径を有することを特徴とする請求項17に記載の方法。
- 前記ファイバーウェブのファイバーは約10デニル乃至約100デニルの範囲の線形質量密度を有することを特徴とする請求項17に記載の方法。
- 前記ファイバーウェブ及びマトリックス材料はファイバーマトリックス比Rが0.51乃至約0.73である複合バルーンを提供するために設けられることと、Rは基層バルーン及び外層バルーン間のファイバー及びマトリックス材料の厚みを全体の壁厚で割ったものとして定義されることとを特徴とする請求項17に記載の方法。
- ファイバーウェブを取り付けるに先立って基層バルーンの少なくとも円錐形部に摩擦増大材料の層を取り付ける工程を更に含むことを特徴とする請求項17に記載の方法。
- 前記複合バルーンをカテーテルやプローブ上に取り付ける工程を更に含むことを特徴とする請求項17に記載の方法。
- 前記ファイバー材料はアラミドと超高分子量ポリオレフィンと液晶高分子材とこれらの混合物から成る群から選択されることを特徴とする請求項17に記載の方法。
- 前記基層バルーンは圧力下にて膨張され、ウェブのファイバーがそこに取り付けられることを特徴とする請求項15に記載の方法。
- 前記下部に位置するバルーンの層はポリウレタンと、ポリエステル及び共重合ポリエステルと、ポリカーボネートと、ポリアミド/ポリエーテルブロック共重合体と、ポリエステル/ポリエーテルセグメントから成るブロック共重合体と、シリコンポリカーボネート共重合体と、ポリアミドと、熱可塑性ポリイミドと、ポリアセタールと、液晶高分子材と、ポリエーテルエーテルケトンと、ポリエーテルスルホンと、これらの組み合わせから成る群から選択される高分子材から成ることを特徴とする請求項17に記載の方法。
- 前記基層バルーン及びファイバーマトリックスの組立体を予め形成された外層バルーン内に挿入する工程は、外層バルーンを反転させ、続いて該組立体を覆って外層バルーンを反転させる工程を含むことを特徴とする請求項17に記載の方法。
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US11/407,576 US8858855B2 (en) | 2006-04-20 | 2006-04-20 | High pressure balloon |
PCT/US2007/002223 WO2007123588A1 (en) | 2006-04-20 | 2007-01-25 | New high pressure balloon |
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JP2009254626A (ja) * | 2008-04-17 | 2009-11-05 | Kaneka Corp | カテーテル用複合バルーン及びその製造方法 |
JP2009254625A (ja) * | 2008-04-17 | 2009-11-05 | Kaneka Corp | カテーテル用複合バルーン及びその製造方法 |
JP2016185445A (ja) * | 2008-10-30 | 2016-10-27 | ベクター コーポレイション リミテッド ライアビリティ カンパニー | 破断抵抗性のあるコンプライアント放射線不透過性カテーテルバルーン、および血管内外科手技において、これを使用するための方法 |
JP2013188309A (ja) * | 2012-03-13 | 2013-09-26 | Terumo Corp | ステント拡張用バルーン、バルーンカテーテルおよびステントデリバリーシステム |
JPWO2016035741A1 (ja) * | 2014-09-04 | 2017-06-22 | テルモ株式会社 | カテーテル及びその製造方法 |
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US20190030301A1 (en) | 2019-01-31 |
US8697212B2 (en) | 2014-04-15 |
US9144666B2 (en) | 2015-09-29 |
US9526873B2 (en) | 2016-12-27 |
US20150011932A1 (en) | 2015-01-08 |
US10099039B2 (en) | 2018-10-16 |
US20150374958A1 (en) | 2015-12-31 |
CA2649422C (en) | 2014-11-04 |
US20120018090A1 (en) | 2012-01-26 |
JP5156000B2 (ja) | 2013-03-06 |
US20130123696A1 (en) | 2013-05-16 |
US8858855B2 (en) | 2014-10-14 |
WO2007123588A1 (en) | 2007-11-01 |
EP2015817B1 (en) | 2014-03-05 |
US8349237B2 (en) | 2013-01-08 |
CA2649422A1 (en) | 2007-11-01 |
US20170065795A1 (en) | 2017-03-09 |
EP2015817A1 (en) | 2009-01-21 |
US10675449B2 (en) | 2020-06-09 |
ES2456065T3 (es) | 2014-04-21 |
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