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    • 75. 发明授权
    • Surgical instrument with extendable blades
    • 外科手术器具可伸缩刀片
    • US5245987A
    • 1993-09-21
    • US923338
    • 1992-07-31
    • Russell J. RedmondClaude A. Vidal
    • Russell J. RedmondClaude A. Vidal
    • A61B17/02
    • A61B17/0218
    • A tissue retraction device for use in laparoscopic surgery which includes a plurality of thin, resiliently deformable, pre-stressed blades disposed in a stacked relationship within an outer sleeve. The blades are connected at their inboard ends to a support rod which is telescopically carried within the sleeve. The blades are pre-twisted about a stratigically located pivot point so that once the inboard end of the device is positioned within the peritoneum, the rod can be urged forwardly causing the end portions of the blades to automatically fan out in a manner such that the full width of the blades can be pressed against the tissue.
    • 一种用于腹腔镜手术的组织缩回装置,其包括在外套筒内以堆叠关系设置的多个薄的,可弹性变形的预应力刀片。 叶片在其内侧端连接到可伸缩地承载在套筒内的支撑杆。 刀片围绕一个层状位置的枢转点预扭转,使得一旦设备的内侧端部位于腹膜内,则杆可以被向前推动,使得叶片的端部以这样的方式自动扇出, 叶片的全部宽度可以压靠在组织上。