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    • 7. 发明授权
    • Surgical clip
    • 手术夹
    • US06402765B1
    • 2002-06-11
    • US09592518
    • 2000-06-12
    • Leonid MonassevitchShlomo LelcukMichael Arad
    • Leonid MonassevitchShlomo LelcukMichael Arad
    • A61B1708
    • A61B17/11A61B17/064A61B17/0643A61B17/0644A61B17/1114A61B17/1227A61B2017/00867A61B2017/1107A61B2017/1139
    • A surgical clip and method for anastomosing a gastrointestinal tract, the clip being formed at least partly of a shape memory alloy, the clip including: a first length of a wire defining a closed geometrical shape having a central opening; a second length of a wire defining a closed geometrical shape similar in configuration and magnitude to that of the first length of wire, wherein, when placed in side-by-side registration, the first and second lengths of wire fully overlap; an intermediate portion located between the first length of wire and the second length of wire, the intermediate portion formed of a shape memory alloy; a cutting element associated with the first length of wire; a counter element associated with the second length of wire and arranged for cutting engagement with the cutting element; wherein when at a first temperature or higher, the first and second lengths of wire are positioned in a side-by-side closed position and the shape memory alloy is in an elastic state, and further, when at a second temperature or lower, below the first temperature, the shape memory alloy is in a plastic state, thereby enabling the first and second lengths of wire to be moved into and to retain a spaced apart position, and upon heating of the clip to a temperature at least equal to the first temperature, the first and second lengths of wire return to the side-by-side closed position, thereby to apply a compressive force to tissue located therebetween.
    • 用于吻合胃肠道的手术夹子和方法,所述夹子至少部分地由形状记忆合金形成,所述夹子包括:限定具有中心开口的封闭几何形状的线的第一长度; 线的第二长度限定了类似于第一长度的线的结构和大小的封闭几何形状,其中当并排配准时,第一和第二长度的线完全重叠; 位于所述第一长度线和所述第二长度线之间的中间部分,所述中间部分由形状记忆合金形成; 与所述第一长度的丝相关联的切割元件; 与所述第二长度的线相关联并且被布置成用于切割与所述切割元件的接合的对置元件; 其中当处于第一温度或更高温度时,所述第一和第二长度的丝线位于并排关闭位置,并且所述形状记忆合金处于弹性状态,并且当处于第二温度或更低时, 第一温度,形状记忆合金处于塑性状态,从而使得第一和第二长度的线能够移动并保持间隔开的位置,并且在将夹子加热至至少等于第一温度的第一温度 线的第一和第二长度返回到并排关闭位置,从而对位于其间的组织施加压缩力。