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    • 6. 发明授权
    • Endoscopic multiple sample biopsy forceps
    • 内窥镜多个样本活检钳
    • US6083150A
    • 2000-07-04
    • US268138
    • 1999-03-12
    • Harold M. AznoianFrank V PattersonPeter J. LukinJohn E. DimitriouSteven L. LantagneEdward C. Page
    • Harold M. AznoianFrank V PattersonPeter J. LukinJohn E. DimitriouSteven L. LantagneEdward C. Page
    • A61B10/06A61B1/00A61B10/00A61B10/02A61B17/28
    • A61B10/06A61B2010/0225A61B2017/2936
    • A endoscopic multiple sample biopsy forceps is disclosed having a jaw assembly with a pair of jaws connected to a pair of arms extending from a jaw housing. Each jaw has two shanks oppositely displaced from the longitudinal axis of the device to define a space in the rear of the jaw for storing collected tissue samples. The tissue storage space defined by the jaw shanks opens rearwardly into a tissue storage area defined within the housing. Each shank has a broad outwardly facing planar surface aligned with an inwardly facing planar surface on one of the pair of arms. A cam slot on each jaw shank is slidably engaged by a cam pin on one of the pair of arms. A puller member coaxially positioned in the housing and axially movable relative to the housing supports a pair of pivots, each of which pivotally engages a bore on at least one jaw shank. The puller member is attached to a drive wire coaxially positioned in a tubular shaft. Axial movement of the drive wire actuates the puller member. In response to axial movement of the puller along the longitudinal axis of the outer tube, the cam pins riding in the cam guide slots change the position relative to the fixed jaw pivot axis of the jaw, thus actuating the jaws. None of the jaw assembly elements movable relative to the device, except the jaws, are externally exposed such that they could contact targeted tissue and negatively affect tissue sampling operations. An ejector is provided to push collected samples from the tissue sample storage area.
    • 公开了一种内窥镜多样本活检钳,其具有钳口组件,其具有连接到从钳口壳体延伸的一对臂的一对钳口。 每个钳口具有两个与装置的纵向轴线相对移位的柄部,以在钳口的后部限定一个用于存储收集的组织样本的空间。 由爪柄限定的组织存储空间向后打开到限定在壳体内的组织存储区域中。 每个柄具有与该对臂中的一个上的向内面对的平坦表面对准的宽的向外的平坦表面。 每个钳口柄上的凸轮槽可以通过一对臂之一上的凸轮销滑动地接合。 同轴地定位在壳体中并且相对于壳体可轴向移动的拉杆构件支撑一对枢轴,每个枢轴枢转地接合在至少一个夹爪上的孔。 牵引构件附接到同轴地定位在管状轴中的驱动线。 驱动线的轴向运动促动拉杆构件。 响应于拉动器沿着外管的纵向轴线的轴向运动,骑在凸轮引导槽中的凸轮销相对于钳口的固定夹爪枢转轴线改变位置,从而致动钳口。 没有钳口组件元件相对于装置可移动,除了钳口外,其外露,使得它们可以接触目标组织并且不利地影响组织取样操作。 提供喷射器以从组织样品存储区域推送收集的样品。