JP2020509877A - 弁周辺の空間を密閉する形状記憶ポリマー発泡体 - Google Patents
弁周辺の空間を密閉する形状記憶ポリマー発泡体 Download PDFInfo
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Abstract
Description
技術分野:本発明は、医療機器分野、特に弁に関する。
(25)前記第1、第2、第3、及び第4の支柱は各々、ニチノール、コバルトクロム、及びステンレス鋼の少なくとも1つを含む、上記いずれかに記載の装置。
前記第1方向では前記さらなるSMP発泡体は前記圧縮二次状態にあり;前記第2方向では、前記さらなるSMP発泡体は前記膨張一次状態にある、例2に記載の装置である。
Claims (28)
- (a)(i)第1、第2、第3、及び第4の支柱、並びに(a)(ii)第1、第2、第3、第4、及び第5の窓を含むステントと;
ステント内に含まれる弁と;
熱刺激に応じて圧縮二次状態から膨張一次状態へ膨張するように構成された開放気泡ポリウレタン熱硬化性形状記憶ポリマー(SMP)発泡体と;かつ、
前記ステントを含む外側導管と;
を含む装置であって、
(b)(i)前記第1及び第3の窓は前記第1支柱を共有し、かつともに前記第1支柱に直接隣接し、(b)(ii)前記第2及び第3の窓は前記第2支柱を共有し、かつともに前記第2支柱に直接隣接し、(b)(iii)前記第4及び第3の窓は前記第3支柱を共有し、かつともに前記第3支柱に直接隣接し、(b)(iv)前記第5及び第3の窓は前記第4支柱を共有し、前記第4支柱に直接隣接し;
前記第3窓には互いに対向する第1面と第2面があり、前記SMP発泡体は前記第3窓の第1面の実質的に少なくとも80%を覆い;
(c)(i)前記第1及び第2の支柱は前記SMP発泡体を固定連結するが、(c)(ii)前記第3及び第4の支柱は前記SMP発泡体を固定連結せず;
第1方向では、(d)(i)前記ステントの外径は第1ステント最大外径であり、(d)(ii)前記第3窓の長さは、前記ステントの長軸に平行に測定された第1窓長であり、(d)(iii)前記第3窓の幅は、前記ステントの長軸に直角に測定され、前記ステントの短軸に平行に測定された第1窓幅であり、かつ(d)(iv)前記SMP発泡体は圧縮二次状態にあり;
第2方向では、(e)(i)前記ステントの外径は、第1最大ステント外径よりも長い第2最大ステント外径であり、(e)(ii)前記第3窓の長さは、前記第1窓長よりも短い第2窓長であり、(e)(iii)前記第3窓の幅は、前記第1窓幅よりも広い第2窓幅であり、かつ(e)(iv)前記SMP発泡体は、前記膨張一次状態にあり;かつ、
前記SMP発泡体を固定連結する前記第1及び第2の支柱及び前記SMP発泡体を固定連結しない前記第3及び第4の支柱に応じて、前記装置が前記第1方向から前記第2方向に移行する場合、前記SMP発泡体は、前記第1及び第2の支柱に依存するが、前記第3及び第4の支柱には依存せずに移動するように構成される、装置。 - 前記圧縮状態において、前記第1発泡体は、前記ステントの前記長軸及び前記ステントの前記短軸に共に直交する半径に沿って半径方向に圧縮される、請求項1に記載の装置。
- 前記SMP発泡体は圧縮状態で第1発泡体であり、前記第1発泡体の長さは前記ステントの長軸に平行に測定され;
前記SMP発泡体の膨張状態における長さは第2発泡体の長さであり;
前記第1発泡体の長さは前記第2発泡体の長さと実質的に等しい、請求項1又は2に記載の装置。 - 前記第1支柱は、前記SMP発泡体の第1面から前記SMP発泡体の第2面へ横断するように少なくとも1の位置で前記SMP発泡体を貫通し、かつ、前記第1及び第2の面が互いに対向する、請求項1〜3のいずれか一項に記載の装置。
- 前記第1支柱が第1接合部で前記第2支柱に連結し;
軸は前記第1接合部と交差するが、SMP発泡体には接触せず;
前記軸は前記ステントの長軸に直交し;かつ、
前記軸は前記ステントの短軸に直交する、請求項1〜4のいずれか一項に記載の装置。 - 前記SMP発泡体を前記第1及び第2の支柱に連結する接着剤を含む、請求項1〜3及び5のいずれか一項に記載の装置。
- 前記接着剤は、前記第1支柱に直接接触して固定接着される未発泡ポリウレタンコーティングを含み;
前記SMP発泡体は前記ポリウレタンコーティングに直接接触して固定接着され;
前記ポリウレタンコーティングは、前記SMP発泡体を前記第1支柱に固定接着する、請求項6に記載の装置。 - 前記ポリウレタンコーティングが硬化熱硬化性樹脂である、請求項7に記載の装置。
- 前記ポリウレタンコーティングが熱可塑性である、請求項7に記載の装置。
- 前記ポリウレタンコーティングの化学組成が前記SMP発泡体の化学組成と等しい、請求項7に記載の装置。
- 前記ポリウレタンコーティングがSMPである、請求項7〜10のいずれか一項に記載の装置。
- 前記弁と前記SMP発泡体との間に内側導管を含む、請求項1〜11のいずれか一項に記載の装置。
- 前記外側導管はポリテトラフルオロエチレン(PTFE)を含む、請求項1〜12のいずれか一項に記載の装置。
- 前記SMP発泡体がヨウ素に共有結合される、請求項1〜13のいずれか一項に記載の装置。
- 前記SMP発泡体がポリ(ウレタン−ウレア−アミド)である、請求項14に記載の装置。
- 前記ヨウ素がトリヨードベンゼンモノマーに含まれる、請求項14に記載の装置。
- 前記SMP発泡体が、1又はそれ以上のポリオールと1又はそれ以上のジイソシアネートとの反応で得られる、請求項1〜16のいずれか一項に記載の装置。
- 前記SMP発泡体は、前記第3窓の第1面の大部分を実質的に覆うが、前記第1、第2、第4及び第5の窓のいずれの面の大部分は覆わず;
前記第3窓は、前記第1、第2、第4及び第5の窓の各々に直接隣接し;
前記第3窓と前記第1、第2、第4及び第5の窓との間に他のステント窓は存在しない、請求項1〜17のいずれか一項に記載の装置。 - さらなる開放気泡ポリウレタン熱硬化性SMP発泡体であって、前記さらなるSMP発泡体が、熱刺激に応じて、圧縮二次状態から膨張一次状態へ膨張するように構成され;
前記さらなるSMP発泡体は、互いに対向する前記第1面と第2面がある前記第4窓の第1面を実質的に覆い;
前記第3支柱は前記さらなるSMP発泡体を固定連結し;
前記第1方向では前記さらなるSMP発泡体は前記圧縮二次状態にあり;
前記第2方向では前記さらなるSMP発泡体は、前記膨張一次状態にある、請求項1〜18のいずれか一項に記載の装置。 - 前記SMP発泡体と前記さらなるSMP発泡体は、軸が前記SMP発泡体と前記さらなるSMP発泡体と共に交差するように互いに重なり合い;
前記軸はステントの長軸に直交し;
前記軸はステントの短軸に直交する、請求項19に記載の装置。 - さらなる開放気泡ポリウレタン熱硬化性SMP発泡体であって、前記さらなるSMP発泡体が、熱刺激に応じて、圧縮二次状態から膨張一次状態へ膨張するように構成され;
前記さらなるSMP発泡体は、前記ステントに含まれて互いに対向する前記第1面と第2面がある第6窓の第1面を実質的に覆い;
前記さらなるSMP発泡体は前記第3窓を実質的に覆わず;
前記SMP発泡体は実質的に前記第6窓を実質的に覆わず;
前記第6窓に含まれるさらなる支柱は前記さらなるSMP発泡体を固定連結し;
前記第1方向では、前記さらなるSMP発泡体は前記圧縮二次状態にあり;
前記第2方向では、前記さらなるSMP発泡体は前記膨張一次状態にある、請求項1〜18のいずれか一項に記載の装置。 - 前記SMP発泡体の表面領域は第1表面領域であり;
前記さらなる発泡体の表面領域は第2表面領域であり;
前記第1表面領域が第2表面領域より少なくとも20%広い、請求項21に記載の装置。 - 前記SMP発泡体は、モノリシックSMP発泡体リングを含み;
前記SMP発泡体リングは前記ステントの外側にあり、前記ステントを囲む、請求項1〜22のいずれか一項に記載の装置。 - ステントの短軸に平行な第1平面は、前記SMP発泡体、前記第1及び第2の支柱、並びに前記第1、第2及び第3の窓と交差し;
ステントの短軸に平行な第2平面は、前記SMP発泡体、前記第3及び第4の支柱、並びに前記第3、第4及び第5の窓と交差し;
前記第1平面は第3及び第4の支柱のいずれとも交差せず;
前記第1平面は第4及び第5の窓のいずれとも交差せず;
前記第2平面は第1及び第2の支柱のいずれとも交差せず;
前記第2平面は第1及び第2の窓のいずれとも交差しない、請求項1〜23のいずれか一項に記載の装置。 - 前記第1、第2、第3、及び第4の支柱は各々、ニチノール、コバルトクロム及びステンレス鋼の少なくとも1つを含む、請求項1〜24のいずれか一項に記載の装置。
- 第1、第2、第3、及び第4の支柱を含む金属骨格と;
前記骨格内に含まれる弁と;かつ、
熱刺激に応じて圧縮二次状態から膨張一次状態に膨張するように構成された開放気泡ポリウレタン熱硬化性形状記憶ポリマー(SMP)発泡体と;
を含む装置であって、
(a)(i)前記第1及び第2の支柱は前記SMP発泡体を固定連結し、かつ(a)(ii)前記第3及び第4の支柱は前記SMP発泡体を固定連結せず;
第1方向では、(b)(i)前記ステントの外径は第1最大ステント外径であり、(b)(ii)前記ステントの長さは前記ステントの長軸と平行に測定された第1ステント長であり、かつ(b)(iii)前記SMP発泡体は前記圧縮二次状態にあり;
第2方向では、(c)(i)前記ステントの外径は、前記第1最大ステント外径よりも長い第2最大ステント外径であり、(c)(ii)前記ステントの長さは、前記第1ステント長よりも短い第2ステント長であり、(c)(iii)前記SMP発泡体は前記膨張一次状態にあり;
前記SMP発泡体を固定連結する前記第1及び第2の支柱及び固定連結しない前記第3及び第4の支柱に応じて、前記装置が前記第1方向から前記第2方向に移行する場合、前記SMP発泡体は、前記第1及び第2の支柱に依存するが、前記第3及び第4の支柱には依存せずに移動するように構成され;
前記ステントの長軸に直交する第1平面は、前記SMP発泡体と前記第1及び第2の支柱とを交差し;
前記ステントの長軸に直交する第2平面は、前記SMP発泡体と前記第3及び第4の支柱とを交差し;
前記第1平面は、前記第3及び前記第4の支柱のいずれとも交差せず;
前記第2平面は、前記第1及び前記第2の支柱のいずれとも交差しない、装置。 - 接着剤が、前記第1及び第2の支柱及び前記SMP発泡体と直接接触して、前記SMP発泡体を前記第1及び第2の支柱の各々に直接接着するが;
前記第3及び第4の支柱のいずれも、前記SMP発泡体に直接接触する接着剤に直接接触しない、請求項26に記載の装置。 - 前記第1及び第2の支柱と接触する膜を含み、
前記SMP発泡体の上半分内の位置は、膜及び前記SMP発泡体に直接接触する接着剤を介して前記膜に直接接着し;
前記SMP発泡体の下半分は、いかなる接着剤を介しても前記膜に直接接着せず、前記装置が第1方向から第2方向に移行する場合に前記膜上を滑るように構成される、請求項26に記載の装置。
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EP3595588B1 (en) | 2022-06-08 |
CN114601976A (zh) | 2022-06-10 |
WO2018170149A1 (en) | 2018-09-20 |
JP6955022B2 (ja) | 2021-10-27 |
JP7521084B2 (ja) | 2024-07-23 |
US11219520B2 (en) | 2022-01-11 |
EP3595588A1 (en) | 2020-01-22 |
EP3595588A4 (en) | 2020-12-09 |
PL4062875T3 (pl) | 2024-08-05 |
US20220125583A1 (en) | 2022-04-28 |
JP2022008676A (ja) | 2022-01-13 |
CN110381889B (zh) | 2021-12-31 |
EP4062875A1 (en) | 2022-09-28 |
EP4385532A2 (en) | 2024-06-19 |
JP2023159082A (ja) | 2023-10-31 |
CN110381889A (zh) | 2019-10-25 |
JP7322115B2 (ja) | 2023-08-07 |
EP4062875B1 (en) | 2024-05-08 |
US20210068947A1 (en) | 2021-03-11 |
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