JP2022518342A - コアセンタリング機構を有するガイドワイヤ - Google Patents
コアセンタリング機構を有するガイドワイヤ Download PDFInfo
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- JP2022518342A JP2022518342A JP2021533229A JP2021533229A JP2022518342A JP 2022518342 A JP2022518342 A JP 2022518342A JP 2021533229 A JP2021533229 A JP 2021533229A JP 2021533229 A JP2021533229 A JP 2021533229A JP 2022518342 A JP2022518342 A JP 2022518342A
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Images
Classifications
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- 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
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- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/02—Holding devices, e.g. on the body
- A61M2025/0293—Catheter, guide wire or the like with means for holding, centering, anchoring or frictionally engaging the device within an artificial lumen, e.g. tube
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- A—HUMAN NECESSITIES
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- A61M2025/09091—Basic structures of guide wires having a coil around a core where a sheath surrounds the coil at the distal part
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61M25/00—Catheters; Hollow probes
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- A61M2205/00—General characteristics of the apparatus
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
[0001]本出願は、2019年1月15日に出願された米国仮出願第62/792,775の優先権および利益を主張する2020年1月14日に出願されGuidewire with Core Centering Mechanismと題された米国特許出願第16/742,211号のPCT国際出願である。上述の特許出願のそれぞれは、参照によりその全体が本明細書に援用される。
Claims (26)
- 近位セクションおよび遠位セクションを有するコアと、
前記コアの前記遠位セクションがチューブ構造に入りかつ前記チューブ構造によって包まれるように前記コアに結合された外側チューブであって、前記外側チューブおよび前記コアが、前記外側チューブの内側表面と前記外側チューブ内に配置された前記コアの前記遠位セクションとの間に環状空間を画定する、外側チューブと、
前記環状空間の少なくとも一部分内に位置決めされた1つまたは複数のセンタリング機構であって、前記外側チューブ内での径方向中心に置かれた位置から外れる前記コアの移動を制限するように構成された、1つまたは複数のセンタリング機構と、
を備える、血管内デバイスであって、
前記1つまたは複数のセンタリング機構が、前記外側チューブの長さの少なくとも15%に延在する、血管内デバイス。 - 放射線不透過性のマーカコイルをさらに備え、前記1つまたは複数のセンタリング機構が、前記マーカコイルとは別体である、請求項1に記載のデバイス。
- 前記コアの前記遠位セクションが、より小さな遠位直径へと先細りする、請求項1または2に記載のデバイス。
- 前記1つまたは複数のセンタリング機構が、第1のセンタリングコイルを含む、請求項1から3のいずれか一項に記載のデバイス。
- 前記第1のセンタリングコイルが、放射線不透過性材料から形成されない、請求項4に記載のデバイス。
- 前記第1のセンタリングコイルが、ステンレス鋼を含む、請求項4または5に記載のデバイス。
- 前記第1のセンタリングコイルが、ポリマーコイルである、請求項4または5に記載のデバイス。
- 前記第1のセンタリングコイルが、近位コイル継目において前記コアに隣接し、前記第1のセンタリングコイルの前記近位コイル継目が、前記コアの直径が前記外側チューブの内径のおおよそ20から80%になる箇所に位置する、請求項4から7のいずれか一項に記載のデバイス。
- 前記1つまたは複数のセンタリング機構が、前記第1のセンタリングコイルの近位端部の遠位で終端する近位端部を含む第2のセンタリングコイルをさらに備える、請求項4から8のいずれか一項に記載のデバイス。
- 前記第1のセンタリングコイルの少なくとも一部分が、前記マーカコイルの少なくとも一部分の上に延在する、請求項9に記載のデバイス。
- 前記第1のセンタリングコイルおよび前記第2のセンタリングコイルが、異なる外径対内径比を有する、請求項9または10に記載のデバイス。
- 前記第1のセンタリングコイルが、約1.05対2、または約1.075対1.5、または約1.1対1.3のピッチ対コイルワイヤ直径比を有する、請求項4から11のいずれか一項に記載のデバイス。
- 前記第2のセンタリングコイルが、約1.05対2、または約1.075対1.5、または約1.1対1.3のピッチ対コイルワイヤ直径比を有する、請求項9から12のいずれか一項に記載のデバイス。
- 前記1つまたは複数のセンタリング機構が、ポリマー充填物を含む、請求項1から13のいずれか一項に記載のデバイス。
- 前記ポリマー充填物が、エラストマーである、請求項14に記載のデバイス。
- 前記1つまたは複数のセンタリング機構が、完全に前記外側チューブ内に配置された内側チューブを含む、請求項1から15のいずれか一項に記載のデバイス。
- 前記内側チューブが、前記外側チューブと同じ材料から形成される、請求項16に記載のデバイス。
- 前記内側チューブが、ポリマーチューブとして形成される、請求項16に記載のデバイス。
- 前記内側チューブが、前記外側チューブの柔軟性プロファイル以下の柔軟性プロファイルを有する、請求項16から18のいずれか一項に記載のデバイス。
- 前記センタリング機構が、前記チューブの前記近位端部を越えて近位方向に延在するか、前記チューブの前記遠位端部を越えて遠位方向に延在するか、またはその両方である、請求項1から19のいずれか一項に記載のデバイス。
- 前記第1のセンタリングコイルが、可変の内径と、実質的に一定の外径とを有する、請求項4から20のいずれか一項に記載のデバイス。
- 少なくとも前記チューブの外側表面に適用された被覆層をさらに備え、前記被覆層が、センタリング機構を有さない類似の血管内デバイスの被覆層と比較してより一様な厚さを有する、請求項1から21のいずれか一項に記載のデバイス。
- 近位セクションおよび遠位セクションを有する内側部材と、
前記内側部材の少なくとも一部分を包囲する外側部材であって、前記外側部材および前記内側部材が、前記外側部材の内側表面と前記外側部材内に配置された前記内側部材の前記部分との間に環状空間を画定する、外側部材と、
前記環状空間の少なくとも一部分内に位置決めされた1つまたは複数のセンタリング機構であって、前記外側部材内での径方向中心に置かれた位置から外れる前記内側部材の移動を制限するように構成された、1つまたは複数のセンタリング機構と、
を備える、血管内デバイスであって、
前記1つまたは複数のセンタリング機構が、前記外側部材の長さの少なくとも45%、または少なくとも約50%に延在する、血管内デバイス。 - 前記内側部材が、コアワイヤ、チューブ、編組物、およびコイルから成る群から選択される、請求項23に記載のデバイス。
- 前記外側部材が、チューブ、編組物、コイル、および編組物またはコイルを注入されたポリマーチューブから成る群から選択される、請求項23または24に記載のデバイス。
- 前記センタリング機構が、コイル、チューブ、編組物、積み重ねられたリング、およびそれらの組合せから成る群から選択された1つまたは複数の部材を含む、請求項23から25のいずれか一項に記載のデバイス。
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US16/742,211 | 2020-01-14 | ||
PCT/US2020/013754 WO2020150398A1 (en) | 2019-01-15 | 2020-01-15 | Guidewire with core centering mechanism |
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KR20210117279A (ko) | 2021-09-28 |
CA3121626A1 (en) | 2020-07-23 |
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