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    • 10. 发明授权
    • Steerable catheter device
    • 导向导管装置
    • US06579279B1
    • 2003-06-17
    • US09665328
    • 2000-09-19
    • Robert A. RabinerDaniel E. Rabiner
    • Robert A. RabinerDaniel E. Rabiner
    • A61M25098
    • A61M25/0152A61M25/0067A61M25/0068A61M25/0069A61M25/007A61M25/0074A61M25/0136A61M2025/018A61M2025/0681
    • A handle includes a body portion and a handle portion which is slidably and rotatably mounted on the body portion. Shoulders on the body portion and the handle portion limit relative sliding movement of the body portion and handle portion. A catheter open at both ends has one end fixed to the handle portion for movement therewith, the opposite end of the catheter having a shape memory tip. A fitting is threadedly connected to an enlarged part of the body portion. A sheath is threadedly connected to the fitting and the catheter is slidable and rotatable within the sheath. An annular channel is provided between the sheath and the catheter, this channel being in fluid communication with a bore in the fitting. The outer end of the sheath has holes therethrough in fluid communication with the channel. An irrigation inflow and aspiration outflow tube is also in fluid communication with the bore in the fitting. A first lock is provided adjacent the fitting for controlling the amount of frictional resistance to lengthwise movement of the catheter relative to the sheath and to lock the catheter in position. A medical device such as an endoscope may be received within the catheter for movement relative thereto. A second lock is supported by the handle portion for locking a medical device in position relative to the catheter.
    • 手柄包括主体部分和可滑动地且可旋转地安装在主体部分上的手柄部分。 主体部分和手柄部分上的肩部限制主体部分和把手部分的相对滑动。 在两端开口的导管的一端固定在手柄部分上以与其一起运动,导管的相对端具有形状记忆尖端。 配件螺纹连接到主体部分的扩大部分。 护套螺纹连接到配件上,并且导管可在护套内滑动和旋转。 在护套和导管之间提供环形通道,该通道与配件中的孔流体连通。 护套的外端具有通过其与通道流体连通的孔。 灌溉流入和抽吸流出管也与配件中的孔流体连通。 在配件附近提供第一锁,用于控制导管相对于护套的纵向运动的摩擦阻力的量并将导管锁定在适当位置。 可以在导管内容纳诸如内窥镜的医疗装置以相对于其移动。 第二锁由手柄部分支撑,用于将医疗装置相对于导管锁定在适当位置。