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    • 7. 发明授权
    • Trocar assembly with pneumatic sealing
    • 套管套装气动密封
    • US08795223B2
    • 2014-08-05
    • US13414186
    • 2012-03-07
    • Ralph StearnsRaymond Yue-Sing TangDominick Mastri
    • Ralph StearnsRaymond Yue-Sing TangDominick Mastri
    • A61B17/34A61B17/00
    • A61B17/3423A61B17/3462A61B17/3474A61B2017/00477A61B2017/3445A61B2217/007
    • A trocar assembly for creating a pneumatic seal during a minimally-invasive surgical procedure. The trocar assembly including an elongated body having a lumen extending therethrough. The proximal end portion of the body defining a housing. A fluid supply plenum is defined in the housing configured to deliver pressurized insufflation fluid to a nozzle. The nozzle configured for directing pressurized fluid into the lumen and creating a pneumatic seal. A fluid return plenum is defined in the housing configured to collect spent insufflation fluid from as patient's abdominal cavity. The fluid return plenum including a plurality of axially and radially oriented elongate vanes configured to permit spent insufflation fluid to proceed between the vanes and direct spent insufflation fluid back to the fluid return plenum.
    • 一种用于在微创外科手术过程中创建气动密封的套管针组件。 套管针组件包括具有延伸穿过其中的内腔的细长主体。 本体的近端部分限定了壳体。 流体供应气室限定在壳体中,构造成将加压吹气流体输送到喷嘴。 所述喷嘴构造成用于将加压流体引导到内腔中并产生气动密封。 液体回流室限定在壳体中,构造成从患者的腹腔收集用过的吹气液。 流体回流通风室包括多个轴向和径向定向的细长叶片,其被配置成允许废气吹入流体在叶片之间进行并且直接用过的吹气流体返回到流体回流通风室。