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    • 1. 发明申请
    • Methods and Apparatus for Infusing the Interior of a Blood Vessel
    • 用于注射血管内部的方法和装置
    • US20080200873A1
    • 2008-08-21
    • US11675919
    • 2007-02-16
    • Alejandro EspinosaPeter K. KratschEduardo A. AmpueroWilliam M. Garcia de Quevedo
    • Alejandro EspinosaPeter K. KratschEduardo A. AmpueroWilliam M. Garcia de Quevedo
    • A61M25/14
    • A61M25/0029A61M25/0032A61M25/007A61M25/0075
    • An apparatus for treating blood vessels includes an elongate body having a proximal end, a distal end, and an infusion lumen extending there-through, a plurality of infusion holes in valved communication with the infusion lumen, and a valve member which is movable inside the infusion lumen from a first position in which some of the infusion holes are blocked to a second position where fewer of the infusion holes are blocked. According to one embodiment, the valve member is a tube coaxially disposed inside the infusion lumen. According to a second embodiment, the valve member includes a seal coupled to a wire. When the wire is pulled, more holes are unsealed. In both embodiments, an inflatable occlusion balloon is coupled to the distal end of the apparatus and an inflation lumen extends from it to the proximal end of the device. A method of the invention includes determining the length of the blood vessel to be treated and adjusting the valve member to unblock a number of infusion holes corresponding to the length of the vessel to be treated.
    • 用于治疗血管的装置包括:细长体,其具有近端,远端和在其延伸的输注腔,多个与输液腔连通的输注孔,以及可在内部移动的阀构件 其中一些输注孔被阻塞到第二位置的第一位置处,其中较少的输注孔被阻挡。 根据一个实施例,阀构件是同轴地设置在输液腔内部的管。 根据第二实施例,阀构件包括联接到线的密封件。 当拉丝时,更多的孔被开封。 在两个实施例中,充气闭塞球囊联接到装置的远端,并且充气腔从其延伸到装置的近端。 本发明的方法包括确定要处理的血管的长度,并调整阀构件以解除对应于待治疗血管长度的多个输注孔。
    • 9. 发明授权
    • Snap handle assembly for an endoscopic instrument
    • 用于内窥镜仪器的卡扣手柄组件
    • US06273882B1
    • 2001-08-14
    • US09099423
    • 1998-06-18
    • John WhittierPeter K. Kratsch
    • John WhittierPeter K. Kratsch
    • A61B1700
    • A61B10/06A61B17/29A61B2017/00477
    • An endoscopic instrument having an end effector assembly at a distal end, a flexible member connected to and extending from the end effector assembly and a handle assembly connected to the flexible member. The handle assembly includes a handle member, a nose member and a biasing element. The handle member has an inner bore. The hollow nose member has a shank configured for insertion into the inner bore. The biasing element is located within the inner bore and biases the flexible member relative to the handle member. The handle member may have a keyway or a projection configured for insertion into a keyway, and the nose member may have the other of the keyway or the projection. The flexible member has a retaining element affixed to its proximal end. The flexible member is inserted through the nose member with the retaining element located proximate the proximal end of the nose member and thereby retained between the handle member and the nose member. Relative axial movement between the handle member and the flexible member is minimized.
    • 一种内窥镜器械,其具有在远端的端部执行器组件,连接到端部执行器组件并且从端部执行器组件延伸的柔性构件以及连接到柔性构件的手柄组件。 手柄组件包括手柄构件,鼻构件和偏置元件。 手柄构件具有内孔。 中空的鼻部构件具有构造成用于插入到内孔中的柄。 偏置元件位于内孔内并相对于手柄构件偏置柔性构件。 手柄构件可以具有构造成用于插入键槽的键槽或突起,并且鼻构件可以具有键槽或突起中的另一个。 柔性构件具有固定到其近端的保持元件。 柔性构件通过鼻部构件插入,保持元件位于鼻部构件的近端附近,从而保持在把手构件和鼻部构件之间。 把手构件和柔性构件之间的相对轴向运动最小化。