JP5374551B2 - 医療用カテーテル - Google Patents
医療用カテーテル Download PDFInfo
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- JP5374551B2 JP5374551B2 JP2011154643A JP2011154643A JP5374551B2 JP 5374551 B2 JP5374551 B2 JP 5374551B2 JP 2011154643 A JP2011154643 A JP 2011154643A JP 2011154643 A JP2011154643 A JP 2011154643A JP 5374551 B2 JP5374551 B2 JP 5374551B2
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- catheter
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- suction
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Description
12 コンソールユニット
14 注入ポンプ
15 気泡検出器
16 吸引ポンプ
18 注入管
22 吸引管
30 コントローラー
32、56、96、182 カテーテル
40、170 動作ヘッド
40、100、150、172 カッター組立体
42、72、93、102、152 ブレード
48、154、156、178、185 ポート
70 固定ブレードカッター組立体
80 調節可能ブレードカッター組立体
97、104 ショルダー部分
99、106 切断面
190 粉砕組立体
192 中心部
194 バー
Claims (15)
- 管腔又は体腔の中の目標位置からの閉塞物の除去のための回転可能な動作ヘッドであって、
前記閉塞物を該閉塞物の周囲の健全な組織から該組織に損傷を与えることなく切断する複数のブレードを備え、
前記ブレードの少なくとも1つは、前面と、該前面に隣接するショルダー部分と、該ショルダー部分に隣接又は近接する切断面とを有する段付きブレードカッター構造を有し、
前記切断面は、前記ブレードの露出面に沿って周方向に延び、
前記ショルダー部分は前記切断面と前記前面との間に位置し、
前記ショルダー部分は、前記切断面の高さ寸法よりも大きい幅寸法を有し、
前記切断面は前記閉塞物の除去を行うが、前記前面及び前記ショルダー部分のそれぞれは前記組織を傷付けず、
細長いカテーテルに受け入れられた、モーターにより駆動される回転可能かつ移動可能な駆動シャフトに接続されている、動作ヘッド。 - 前記切断面は、0.00127cmないし0.0254cmの高さ寸法を有する、請求項1に記載の動作ヘッド。
- 前記切断面は、0.00254cmないし0.00762cmの高さ寸法を有する、請求項1に記載の動作ヘッド。
- 前記切断面の高さ寸法に対する前記ショルダー部分の幅寸法の比は2:1より大きい、請求項1に記載の動作ヘッド。
- 前記段付きブレードカッター構造は、前記切断面と反対側に位置する前記ショルダー部分の縁部に隣接する、面取りをされた縁部を有する、請求項1に記載の動作ヘッド。
- 前記切断面及び前記ショルダー部分は、60°と120°との間の角度をなすように交差している、請求項1に記載の動作ヘッド。
- 前記切断面は、湾曲した外形を有する、請求項1に記載の動作ヘッド。
- 前記ブレードは固定のブレードである、請求項1に記載の動作ヘッド。
- 前記ブレードは調節可能なブレードである、請求項1に記載の動作ヘッド。
- 管腔又は体腔からの閉塞物の除去のためのカテーテル組立体であって、
細長いカテーテルに受け入れられた、モーターにより駆動される回転可能かつ移動可能な駆動シャフトに接続された動作ヘッドを含み、
前記動作ヘッドは、前記閉塞物を該閉塞物の周囲の健全な組織から該組織に損傷を与えることなく切断する複数のブレードを備え、
前記ブレードの少なくとも1つは、前面と、該前面に隣接するショルダー部分と、該ショルダー部分に隣接又は近接する切断面とを有する段付きブレードカッター構造を有し、
前記切断面は、前記ブレードの露出面に沿って周方向に延び、
前記ショルダー部分は前記切断面と前記前面との間に位置し、
前記ショルダー部分は、前記切断面の高さ寸法よりも大きい幅寸法を有し、
前記切断面は前記閉塞物の除去を行うが、前記前面及び前記ショルダー部分のそれぞれは前記組織を傷付けず、
前記動作ヘッドは、細長いカテーテルに受け入れられた、モーターにより駆動される回転可能かつ移動可能な駆動シャフトに接続されている、カテーテル組立体。 - 前記動作ヘッドは、それぞれが前記ブレードの少なくともいくつかの間にある複数の吸引ポートを有し、各吸引ポートは、吸引液及び前記閉塞物の除去のための真空装置に接続された、密封された管と連通している、請求項10に記載のカテーテル組立体。
- 前記切断面は、0.00127cmないし0.0254cmの高さ寸法を有する、請求項10に記載のカテーテル組立体。
- 前記切断面は、0.00254cmないし0.00762cmの高さ寸法を有する、請求項10に記載のカテーテル組立体。
- 前記ショルダー部分は、前記切断面の高さ寸法より大きい幅寸法を有する、請求項10に記載のカテーテル組立体。
- 前記切断面の高さ寸法に対する前記ショルダー部分の幅寸法の比は、2:1より大きく、5:1より小さい、請求項14に記載のカテーテル組立体。
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