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1. 发明授权

US06709465B2 Radially expanding ureteral device 失效
标题翻译：径向扩张输尿管装置
公开(公告)号：US06709465B2
公开(公告)日：2004-03-23
申请号：US09755487
申请日：2001-01-05
申请人： Michael Edward Mitchell , Gloria Miran Ro , Aoy Tomita
发明人： Michael Edward Mitchell , Gloria Miran Ro , Aoy Tomita
IPC分类号： A61F204
CPC分类号： A61F2/94 , A61F2/07 , A61F2/91 , A61F2210/0004 , A61F2230/0039 , A61F2230/005 , A61F2230/0058 , A61F2230/0071 , A61F2230/0076 , A61M27/008 , A61M29/02 , A61M2210/1089
摘要： A ureteral device is provided for facilitating stone passage through a ureter or duct. An exemplary ureteral device includes a flexible, elongate body that defines a plurality of cages along the body. In a contracted state the cages have a reduced diameter. When an activation force is applied, the cages transform to an expanded state, thereby defining a plurality of void spaces. The void spaces are configured to receive an obstruction, such as a stone. The ureteral device can then be induced to the contracted state to compress the obstruction within the elongate, flexible body and then be removed from the obstructed passage. The ureteral device can be configured to have different numbers of elongate flexible members that define the cages.
摘要翻译：输尿管装置用于促进石块通过输尿管或管道。示例性输尿管装置包括沿主体限定多个笼的柔性细长体。在承包状态下，笼子的直径减小。当施加激活力时，保持架转换到展开状态，从而限定多个空隙。空隙空间被配置成接收诸如石头的障碍物。然后可以将输尿管装置诱导到收缩状态以压缩细长的柔性体内的阻塞物，然后从阻塞的通道中移除。输尿管装置可被配置成具有不同数量的限定笼子的细长柔性构件。

2. 发明授权

US06214037B1 Radially expanding stent 失效
标题翻译：径向扩张支架
公开(公告)号：US06214037B1
公开(公告)日：2001-04-10
申请号：US09272660
申请日：1999-03-18
申请人： Michael Edward Mitchell , Gloria Miran Ro , Aoy Tomita
发明人： Michael Edward Mitchell , Gloria Miran Ro , Aoy Tomita
IPC分类号： A61F200
CPC分类号： A61M27/008 , A61F2/07 , A61F2/90 , A61F2/91 , A61F2210/0004 , A61M29/02 , A61M2210/1089
摘要： A stent is provided for decompressing an obstructed passage within the body such as a ureter to facilitate stone passage through a ureter or duct. An exemplary stent includes a flexible, elongate body that defines an open channel along the body. At least a portion of the body is made of a resilient material, wherein the open channel defines a void volume. A retaining or compressive force applied to the resilient material causes the void volume to be reduced, or maintained in a reduced state, until the retaining or compressive force is removed. A sleeve, a wire, or an adhesive soluble in liquid or dissolvable by ultrasound can provide the retaining force. The stent can be configured as a flexible, elongate body having elements distributed along the body that are movable from a first state to a second state to increase the diameter of the ureteral stent from a first diameter to a second diameter.
摘要翻译：提供支架用于减压体内的阻塞通道，例如输尿管，以促进石块通过输尿管或导管。示例性支架包括限定沿着身体的开放通道的柔性细长主体。身体的至少一部分由弹性材料制成，其中开放通道限定空隙体积。施加到弹性材料上的保持力或压缩力导致空隙体积减小或保持在减小的状态，直到保持或压缩力被去除。可溶于液体或可通过超声波溶解的套筒，线或粘合剂可提供保持力。支架可以被构造为柔性细长的主体，其具有沿着主体分布的元件，其可以从第一状态移动到第二状态，以将输尿管支架的直径从第一直径增加到第二直径。

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