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    • 5. 发明授权
    • Surgical stapling device
    • 手术吻合装置
    • US07934628B2
    • 2011-05-03
    • US12036659
    • 2008-02-25
    • Thomas WenchellStanislaw MarcyzkKenneth H. WhifieldRoman CzernikHenry E. HolstenFrank C. Maffei
    • Thomas WenchellStanislaw MarcyzkKenneth H. WhifieldRoman CzernikHenry E. HolstenFrank C. Maffei
    • A61B17/064
    • A61B17/07207A61B17/068A61B90/03A61B2017/00115A61B2017/0046A61B2017/2927A61B2090/034A61B2090/0808
    • A surgical stapling device for sequentially applying a plurality of fasteners to body tissue and simultaneously incising tissue is provided. The surgical stapling device is adapted to receive disposable loading units having staples in linear rows whose length can be between about 30 mm and 60 mm. The disposable loading unit includes a proximal body portion, a mounting assembly and a tool assembly. The mounting assembly is secured to the proximal end of the tool assembly and pivotally mounted about a pivot axis to the distal end of the proximal body portion. A support member or blow-out plate assembly is positioned on opposite sides of the pivot axis and extends between the proximal body portion and the mounting assembly. An axial drive assembly is slidably positioned between the support members and is translatable through the cartridge assembly to eject staples from the cartridge assembly. The support members prevent outward buckling of the axial drive assembly during actuation of the device especially when the tool assembly is articulated. Preferably, a protrusion is provided in the proximal body portion of the disposable loading unit at a position to frictionally engage an articulation link. Engagement between the protrusion and the articulation link retains the articulation link at a fixed position within the proximal body portion to maintain the tool assembly in a desired orientation until a predetermined axial force is applied to the articulation link. The disposable loading unit also preferably includes a locking member which is operably connected to the axial drive assembly. The locking member provides an audible and/or tactile indication that the device has been actuated.
    • 提供了一种用于将多个紧固件顺次施加到身体组织并同时切开组织的外科缝合装置。 外科缝合装置适于容纳具有线性行的钉的一次性装载单元,其长度可以在约30mm至60mm之间。 一次性装载单元包括近端主体部分,安装组件和工具组件。 安装组件固定到工具组件的近端并且枢转地围绕枢转轴线安装到近端主体部分的远端。 支撑构件或吹出板组件定位在枢转轴线的相对侧上并且在近端主体部分和安装组件之间延伸。 轴向驱动组件可滑动地定位在支撑构件之间并且可平移通过盒组件以从钉仓组件弹出订书钉。 支撑构件在装置的致动期间防止轴向驱动组件的向外弯曲,特别是当工具组件铰接时。 优选地,在一次性加载单元的近端主体部分中,在与摩擦接合铰接连杆的位置处设置突起。 突起和关节运动连杆之间的接合将关节连接件保持在近端主体部分内的固定位置处,以将工具组件保持在期望的方向,直到预定的轴向力施加到关节连杆。 一次性加载单元还优选地包括可操作地连接到轴向驱动组件的锁定构件。 锁定构件提供该装置已被致动的声音和/或触觉指示。