JP2018051302A - 可撓性医療用品およびその製造方法 - Google Patents
可撓性医療用品およびその製造方法 Download PDFInfo
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- WNPMPFBJTYCQEL-UHFFFAOYSA-N carbonic acid;ethyl carbamate Chemical compound OC(O)=O.CCOC(N)=O WNPMPFBJTYCQEL-UHFFFAOYSA-N 0.000 description 1
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Abstract
【解決手段】ポリマー、例えば、ポリカーボネートウレタンコポリマーを押し出してチューブを形成するステップと、押し出したポリマーをアニールするステップとを備える方法。また、アニール前またはアニール後に、押し出したチューブを望ましい長さまで切断するステップと、アニールしたチューブの一端部をフレアにするステップと、フレアにした部分をハブ上にオーバーモールドするステップと、チューブの他の端部を先端に形成するステップとをさらに備える方法。更にこのような方法で形成したシース。
【選択図】なし
Description
Claims (20)
- 可撓性医療用品の少なくとも一部を形成する方法において、前記方法は、
ポリマーを押し出して、前記医療用品の一部を形成するステップと;
前記医療用品の一部をアニールするステップと;
を備えることを特徴とする、可撓性医療用品の少なくとも一部を形成する方法。 - アニールが、およそ華氏248度で約1時間、前記医療用品の一部をアニールするステップを備えることを特徴とする、請求項1に記載の方法。
- 前記ポリマーがウレタンを含むことを特徴とする、請求項1に記載の方法。
- 熱に曝されると剛性が低下するという特性を有するポリマーが選択されることを特徴とする、請求項1に記載の方法。
- 前記ポリマーがウレタンポリカーボネートを含むことを特徴とする、請求項4に記載の方法。
- 前記医療用品の一部を切断するステップをさらに備えることを特徴とする、請求項1に記載の方法。
- 前記医療用品の一部の端部をフレアにし、それによって前記端部が前記医療用品のハブに結合するように構成されるステップをさらに備えることを特徴とする、請求項1に記載の方法。
- 前記医療用品の一部の端部を前記ハブ上にオーバーモールドするステップをさらに備えることを特徴とする、請求項7に記載の方法。
- 前記医療用品の一部の端部を先端に形成するステップをさらに備えることを特徴とする、請求項1に記載の方法。
- 少なくとも一つの管腔を有する可撓性中空軸を備える医療用品において、前記軸は以下の工程によって形成され、前記工程は、
ポリマーを押し出して、少なくとも前記医療用品の前記中空軸を形成するステップと;
前記中空軸をアニールするステップと;
を備えることを特徴とする、少なくとも一つの管腔を有する可撓性中空軸を備える医療用品。 - アニールが、およそ華氏248度で約1時間、前記医療用品の前記中空軸をアニールするステップを備えることを特徴とする、請求項10に記載の医療用品。
- 前記中空軸が、捩れることなく約120度まで曲げることが出来るように充分にアニールされることを特徴とする、請求項10に記載の医療用品。
- 前記ポリマーがポリカーボネートウレタンコポリマーを含むことを特徴とする、請求項10に記載の医療用品。
- 前記ポリマーが300psiまでの圧力に耐え得ることを特徴とする、請求項10に記載の医療用品。
- 前記ポリマーが130ml/分までの流量に耐え得ることを特徴とする、請求項10に記載の医療用品。
- 前記ポリマーが熱に曝されると可撓性が増大することを特徴とする、請求項10に記載の医療用品。
- 前記軸が延在するハブをさらに備えることを特徴とする、請求項10に記載の医療用品。
- 針軸および針ハブを有する針と、拡張器軸および拡張器ハブを有する拡張器と、ガイドワイヤとをさらに備え、前記拡張器軸は、前記針ハブと前記拡張器ハブとが並んだ状態で前記針軸上に同軸に配置され、前記ガイドワイヤは前記針内に少なくとも部分的に配置され、前記軸は、前記ハブと前記拡張器ハブとが並んだ状態で前記拡張器軸に同軸に配置されることを特徴とする、請求項17に記載の医療用品。
- 前記針ハブが移動する通路をさらに備え、前記通路が前記拡張器ハブに装着されることを特徴とする、請求項17に記載の医療用品。
- アニールされたウレタンポリカーボネートを含む可撓性軸を有する医療用品を使用する方法において、前記方法が、ガイドワイヤ上で前記軸を血管に挿入するステップと、前記ガイドワイヤを引き抜くステップと、皮膚にほぼ平行に位置するように前記軸を曲げるステップと、前記軸を捩ることなく曲げ位置に保持するステップと、を備えることを特徴とする、アニールされたウレタンポリカーボネートを含む可撓性軸を有する医療用品を使用する方法。
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US20180264234A1 (en) | 2018-09-20 |
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US10792470B2 (en) | 2020-10-06 |
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US20200391011A1 (en) | 2020-12-17 |
US20180264235A1 (en) | 2018-09-20 |
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