JP6193997B2 - 血管壁内へ直接薬剤を送達する針カテーテル - Google Patents
血管壁内へ直接薬剤を送達する針カテーテル Download PDFInfo
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Images
Classifications
-
- 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
-
- 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/02—Holding devices, e.g. on the body
- A61M25/04—Holding devices, e.g. on the body in the body, e.g. expansible
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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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0082—Catheter tip comprising a tool
- A61M25/0084—Catheter tip comprising a tool being one or more injection needles
- A61M2025/0089—Single injection needle protruding axially, i.e. along the longitudinal axis of the catheter, from the distal tip
- A61M2025/009—Single injection needle protruding axially, i.e. along the longitudinal axis of the catheter, from the distal tip the needle having a bent tip, i.e. the needle distal tip is angled in relation to the longitudinal axis of the catheter
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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
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/1047—Balloon catheters with special features or adapted for special applications having centering means, e.g. balloons having an appropriate 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
- A61M25/0097—Catheters; Hollow probes characterised by the hub
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
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- Veterinary Medicine (AREA)
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Description
a.ヘマトポルフィリン誘導体(HPD)
b.ポルフィリン
c.ベンゾポルフィリン誘導体一塩基酸環A(BPD−MA)
d.フタロシアニンおよびナフタロシアニン
e.テキサフィリン
f.カチオン性フラーレン
g.2−[1−ヘキシルオキシエチル]−2−デビニル−ピロフェオホルビド−a(HPPH)
h.クロリンおよびバクテリオクロリン
カテーテルの遠位端部を血管内の所望の位置に固定するため位置決めワイヤをカテーテルから離れて湾曲するのが望まれるとき、位置決めワイヤ28a、28b、28c、28dが軸方向に圧縮する負荷を受けて取り付けられる状態を起こすよう構成された位置決め手段もまた有する。位置決め手段は、第1のラック52とピニオン54の組み合わせを有する。第1のピニオンはハンドルの外形から充分露出され、ユーザがピニオンを親指で回転し、それによってラック52を遠位に伸ばすことを可能にする。
Claims (9)
- カテーテル(12)と、ハイポチューブ(20)と、複数の位置決めワイヤ(28)と、及び引張構成要素(100)と、を備える血管内処置用システム(10)であって、
前記カテーテル(12)は、前記ハイポチューブ(20)を受け入れるよう構成された内腔(18)を形成する細長い軸を有し、且つ前記内腔(18)は前記カテーテルの外側の側壁の遠位開口部(24)で終了し、
前記ハイポチューブ(20)は、前記内腔に摺動可能に受け入れられ、前記ハイポチューブ(20)は、鋭くした遠位先端部(22)を有し、且つ前記カテーテル(12)に対して、前記遠位先端部(22)が前記内腔(18)内に完全に収容される引っ込められた状態と、及び前記遠位先端部(20)が前記遠位開口部(24)から突出する進められた状態とを有する様に構成され、
前記複数の位置決めワイヤ(28)は、前記カテーテル(12)に対して外側に伸びており、且つ前記位置決めワイヤ(28)が、前記カテーテル(12)に対して、各位置決めワイヤ(28)が前記カテーテル(12)の外壁に対して畳まれた、血管内送達用の拡張していない状態と、及び各位置決めワイヤ(28)がカテーテル軸から半径方向に離れて伸長する想像上の面に沿って前記カテーテル(12)から離れて曲がり、血管内で前記カテーテル(12)の位置決め用の拡張状態と、を有するよう構成され、
前記想像上の面は、前記カテーテル軸の周囲に180°以下の角度を持つ弧の範囲に全て収容され、
前記引張構成要素(100)は、前記カテーテル(12)の内腔(16)の内部に摺動可能に受け入れられ、各位置決めワイヤ(28)の遠位端(106)が、前記引張構成要素(100)と接続され、それによって、引張構成要素(100)の近位移動が前記位置決めワイヤ(28)を曲げて拡張状態をとり、且つ前記引張構成要素(100)がガイドワイヤ(17)を受け入れるように内腔(102)を形成し、
前記位置決めワイヤ(28)は、拡張状態において、前記弧の中心が遠位開口部(24)の位置の直径方向に反対側であるように、曲げられた前記位置決めワイヤ(28)を前記カテーテル(12)に対して位置付ける、
ことを特徴とする、血管内処置用システム(10)。 - 軸圧縮力を受けて各位置決めワイヤを取り付けるための手段であって、それによって前記各位置決めワイヤが前記拡張状態で前記カテーテルから離れて屈曲する、手段を更に備える、請求項1に記載のシステム。
- 前記軸圧縮力を受けて各位置決めワイヤを取り付けるための手段は、各位置決めワイヤの遠位端に取り付けられる引張構成要素を更に備え、前記引張構成要素は、前記カテーテルに対して近位移動するように構成される、請求項2に記載のシステム。
- 前記ハイポチューブを前記引っ込められた状態から遠位に前記進められた状態に移動する手段をさらに備える、請求項1に記載のシステム。
- 前記ハイポチューブを前記引っ込められた状態から遠位に前記進められた状態に移動する手段が、ラックおよびピニオンを含む、請求項4に記載のシステム。
- 前記複数の位置決めワイヤが合計4本である、請求項1に記載のシステム。
- 前記カテーテルを通って伸長する複数の位置決め内腔を更に備え、前記位置決めワイヤの長さの少なくとも一部に対して前記位置決め内腔を通って前記位置決めワイヤが伸長する、請求項1に記載のシステム。
- 前記位置決めワイヤによって占拠された仮想的な放射平面が前記細長い軸の周囲に120°以下の角度を持つ弧の範囲内で全て収容される、請求項1に記載のシステム。
- 前記位置決めワイヤは前記カテーテルに外側に伸長しており、かつ、外側に伸長する前記ワイヤの長さの中心が、前記カテーテルの軸方向で前記遠位開口部(24)と一致するように構成される、請求項1に記載のシステム。
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US13/586,746 US9033917B2 (en) | 2012-08-15 | 2012-08-15 | Needle catheter for delivery of agents directly into vessel wall |
PCT/US2013/054188 WO2014028306A1 (en) | 2012-08-15 | 2013-08-08 | Needle catheter for delivery of agents directly into vessel wall |
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US9033917B2 (en) | 2015-05-19 |
US20140052052A1 (en) | 2014-02-20 |
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