-
公开(公告)号：US5868768A
公开(公告)日：1999-02-09
申请号：US833155
申请日：1997-04-04
CPC分类号： A61B17/32075 , A61B17/320036 , A61B2017/22097
摘要： A method and device for cutting venous valve located within the lumen of a vein. The device comprises an elongate shaft of rigid or flexible construction and a valvulotome blade positioned on the distal end of said elongate shaft. The valvulotome blade comprises an elongate shank portion which is disposed substantially parallel to the longitudinal axis of the shaft, and a head portion which extends laterally from the shank portion of the blade. The head portion of the blade comprises an outer venous wall abutment surface and a proximal cutting surface. The venous wall abutting surface is a spaced distance from the proximal cutting surface such that the venous wall abutment surface may be forced into abutment with the venous wall and the device may be drawn through a venous valve such that the proximal cutting surface will cut the venous valve, but will not come into contact with the adjacent vein wall. The device may incorporate a mechanism, such as a protruding loop of wire, which will abut against the blood vessel wall so as to force the venous wall abutment surface of the valvulotome blade against the opposite wall of the vein or during the venous valve cutting procedure. The method of the invention provides for operation of the device to effect cutting of venous valve, and may be performed concurrently with an in situ side branch occlusion procedure. The method is preferably performed under angioscopic guidance, and the angioscope used for guidance of the method may be integrated with a separate side branch occlusion device to facilitate concurrent performance of the side branch occlusion procedure and the venous valve cutting procedure.
摘要翻译： 一种用于切割位于静脉内腔内的静脉瓣的方法和装置。 该装置包括刚性或柔性结构的细长轴和位于所述细长轴的远端上的瓣膜切开刀片。 瓣膜切开刀片包括细长柄部分，其基本上平行于轴的纵向轴线设置，并且头部部分从刀片的柄部分横向延伸。 叶片的头部包括外部静脉壁邻接表面和近端切割表面。 静脉壁邻接表面与近端切割表面间隔开距离，使得静脉壁邻接表面可能被迫与静脉壁邻接，并且该装置可以被抽取通过静脉瓣，使得近端切割表面将切断静脉 阀门，但不会与相邻的静脉壁接触。 该装置可以包括机构，例如电线的突出环，其将抵靠血管壁，以便迫使瓣膜切开机叶片的静脉壁邻接表面抵靠静脉的相对壁或静脉瓣膜切割过程 。 本发明的方法提供了该装置的操作以实现静脉瓣的切割，并且可以与原位侧分支闭塞程序同时进行。 该方法优选在血管腔引导下进行，并且用于该方法的引导的血管镜可以与单独的侧分支闭塞装置一体化，以促进侧分支闭塞过程和静脉瓣切断过程的并行执行。
-
公开(公告)号：US5658302A
公开(公告)日：1997-08-19
申请号：US485616
申请日：1995-06-07
CPC分类号： A61B17/32075 , A61B17/320036 , A61B2017/22097
摘要： A method and device for cutting venous valve located within the lumen of a vein. The device comprises an elongate shaft of rigid or flexible construction and a valvulotome blade positioned on the distal end of said elongate shaft. The valvulotome blade comprises an elongate shank portion which is disposed substantially parallel to the longitudinal axis of the shaft, and a head portion which extends laterally from the shank portion of the blade. The head portion of the blade comprises an outer venous wall abutment surface and a proximal cutting surface. The venous wall abutting surface is a spaced distance from the proximal cutting surface such that the venous wall abutment surface may be forced into abutment with the venous wall and the device may be drawn through a venous valve such that the proximal cutting surface will cut the venous valve, but will not come into contact with the adjacent vein wall. The device may incorporate a mechanism, such as a protruding loop of wire, which will abut against the blood vessel wall so as to force the venous wall abutment surface of the valvulotome blade against the opposite wall of the vein or during the venous valve cutting procedure. The method of the invention provides for operation of the device to effect cutting of venous valve, and may be performed concurrently with an in situ side branch occlusion procedure. The method is preferably performed under angioscopic guidance, and the angioscope used for guidance of the method may be integrated with a separate side branch occlusion device to facilitate concurrent performance of the side branch occlusion procedure and the venous valve cutting procedure.
摘要翻译： 一种用于切割位于静脉内腔内的静脉瓣的方法和装置。 该装置包括刚性或柔性结构的细长轴和位于所述细长轴的远端上的瓣膜切开刀片。 瓣膜切开刀片包括细长柄部分，其基本上平行于轴的纵向轴线设置，并且头部部分从刀片的柄部分横向延伸。 叶片的头部包括外部静脉壁邻接表面和近端切割表面。 静脉壁邻接表面与近端切割表面间隔开距离，使得静脉壁邻接表面可能被迫与静脉壁邻接，并且该装置可以被抽取通过静脉瓣，使得近端切割表面将切断静脉 阀门，但不会与相邻的静脉壁接触。 该装置可以包括机构，例如电线的突出环，其将抵靠血管壁，以便迫使瓣膜切开机叶片的静脉壁邻接表面抵靠静脉的相对壁或静脉瓣膜切割过程 。 本发明的方法提供了该装置的操作以实现静脉瓣的切割，并且可以与原位侧分支闭塞程序同时进行。 该方法优选在血管腔引导下进行，并且用于该方法的引导的血管镜可以与单独的侧分支闭塞装置一体化，以促进侧分支闭塞过程和静脉瓣切断过程的并行执行。
-
公开(公告)号：US4911148A
公开(公告)日：1990-03-27
申请号：US323304
申请日：1989-03-14
CPC分类号： A61B1/303 , A61B1/00165 , A61B1/0051 , A61B1/0056 , A61B1/07 , A61B1/307 , A61B1/0057
摘要： An endoscope having a deflectable tip configured so as to have a small outer diameter of approximately 0.15 inch or less. The endoscope includes a flexible shaft subassembly comprised of a conduit having a deflectable end segment at its distal end which can be controlled by a manually operable mechanism on a handle subassembly. The shaft subassembly further includes a cone subassembly at its proximal end including means for structurally connecting to the handle subassembly. Illumination fibers, an imaging fiber, a pull wire and a working channel extend through the shaft subassembly from its distal end to terminals in the cone subassembly for interfacing to the handle subassembly. The handle subassembly comprises an optical component which allows for the viewing of an image emanating from the shaft subassembly imaging fiber, a deflection mechanism which incorporates a means for physical attachment and axial displacement of the shaft subassembly pull wire, and a locking mechanism for attaching the shaft subassembly to the handle subassembly.
摘要翻译： 一种内窥镜，其具有构造成具有约0.15英寸或更小的小外径的可偏转尖端。 内窥镜包括柔性轴子组件，该组件包括导管，导管在其远端具有可偏转的端部段，该导管可由手柄子组件上的可手动操作的机构控制。 轴子组件还包括在其近端处的锥形子组件，包括用于结构地连接到手柄子组件的装置。 照明纤维，成像光纤，拉线和工作通道从其远端延伸穿过轴子组件到锥形子组件中的端子，用于与手柄子组件接合。 该手柄分组件包括一个光学部件，该光学部件允许观察从轴子组件成像光纤发出的图像;偏转机构，其结合有用于轴子组件拉线的物理连接和轴向位移的装置;以及锁定机构， 轴组件到手柄子组件。
-
-
搜索结果
13 条记录 (耗时 0.04 秒)
