JPWO2020071023A1 - 光照射医療装置 - Google Patents
光照射医療装置 Download PDFInfo
- Publication number
- JPWO2020071023A1 JPWO2020071023A1 JP2020550204A JP2020550204A JPWO2020071023A1 JP WO2020071023 A1 JPWO2020071023 A1 JP WO2020071023A1 JP 2020550204 A JP2020550204 A JP 2020550204A JP 2020550204 A JP2020550204 A JP 2020550204A JP WO2020071023 A1 JPWO2020071023 A1 JP WO2020071023A1
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- JP
- Japan
- Prior art keywords
- radiation opaque
- opaque marker
- catheter shaft
- distal
- tubular member
- 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
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Abstract
Description
2:カテーテルシャフト
2a:第1ルーメン
2b:第2ルーメン
3:内管
4:外管
5:バルーン
6:遠位側固定部
7:膨張部
7a:直管部
7b:テーパー部
7c:遠近方向における膨張部の中央
8:近位側固定部
10:導光装置
11:光ファイバー
12:コア
12a:コアの遠位端
13:クラッド
14:クラッドの非存在部
14a:クラッドの非存在部の遠位端
14b:クラッドの非存在部の近位端
14c:遠近方向におけるクラッドの非存在部の中央
15:筒状部材
15a:筒状部材の遠位端
16:樹脂チップ
21:第1放射線不透過マーカー
22:第2放射線不透過マーカー
23:第3放射線不透過マーカー
24:第4放射線不透過マーカー
Claims (12)
- 遠近方向に延在しているカテーテルシャフトと、該カテーテルシャフトの遠位部に配置されているバルーンと、前記カテーテルシャフトの内腔に配置されており遠近方向に移動可能である導光装置とを有する光照射医療装置であって、
前記導光装置は、遠近方向に延在している光ファイバーと、該光ファイバーを覆いかつ光透過性を有する筒状部材とを有し、
前記光ファイバーは、コアと、該コアの外方を被覆するクラッドとを有し、かつ、該コアの遠位部の一部にクラッドの非存在部を有しており、
更に、前記カテーテルシャフトの遠位部に配置されている第1放射線不透過マーカーと、
前記コアの遠位端よりも遠位側において、前記筒状部材に配置されている第2放射線不透過マーカーと、を有していることを特徴とする光照射医療装置。 - 前記第2放射線不透過マーカーは環状であって前記筒状部材の外方に取り付けられており、前記第2放射線不透過マーカーが取り付けられている部分における前記筒状部材の外径は、前記筒状部材の前記第2放射線不透過マーカーが取り付けられていない部分の外径よりも小さい請求項1に記載の光照射医療装置。
- 前記第2放射線不透過マーカーは、前記コアの遠位端よりも遠位側であって前記筒状部材の内腔に配置されている請求項1に記載の光照射医療装置。
- 前記第1放射線不透過マーカーは環状であって前記カテーテルシャフトの外方に取り付けられており、前記第2放射線不透過マーカーの遠近方向の長さは、前記第1放射線不透過マーカーの遠近方向の長さよりも長い請求項1〜3のいずれか一項に記載の光照射医療装置。
- 前記第2放射線不透過マーカーは、コイル形状を有している請求項1〜4のいずれか一項に記載の光照射医療装置。
- 前記第2放射線不透過マーカーは、棒状である請求項3に記載の光照射医療装置。
- 前記筒状部材に配置されている放射線不透過マーカーであって前記クラッドの非存在部の近位端よりも近位側に存在している第3放射線不透過マーカーを更に有している請求項1〜6のいずれか一項に記載の光照射医療装置。
- 前記カテーテルシャフトに配置されている放射線不透過マーカーであって前記第1放射線不透過マーカーよりも近位側に存在している第4放射線不透過マーカーを更に有している請求項1〜7のいずれか一項に記載の光照射医療装置。
- 前記バルーンは、遠位側から順に、前記カテーテルシャフトに固定されている遠位側固定部と、前記カテーテルシャフトに固定されていない膨張部と、前記カテーテルシャフトに固定されている近位側固定部とを有しており、前記第1放射線不透過マーカーは、前記遠位側固定部よりも近位側に配置されている請求項1〜8のいずれか一項に記載の光照射医療装置。
- 前記バルーンの前記膨張部は、直管部と、該直管部の遠位側および近位側に各々形成されているテーパー部とを有しており、前記クラッドの非存在部の遠近方向の長さは、前記バルーンの前記直管部の長さよりも長い請求項9に記載の光照射医療装置。
- 前記カテーテルシャフトは、前記バルーン内に連通している第1ルーメンと、前記導光装置が挿通される第2ルーメンとを有している請求項1〜10のいずれか一項に記載の光照射医療装置。
- 前記クラッドの非存在部の遠位端の位置は、前記コアの遠位端の位置と一致している請求項1〜11のいずれか一項に記載の光照射医療装置。
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