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    • 9. 发明授权
    • Access assembly with ribbed seal
    • 进口组件带肋密封
    • US08292854B2
    • 2012-10-23
    • US13030266
    • 2011-02-18
    • Oivind BrockmeierJared Alden JudsonKenneth Allen Focht
    • Oivind BrockmeierJared Alden JudsonKenneth Allen Focht
    • A61M5/178
    • A61B17/3498A61B17/3421A61B2017/3464
    • A ribbed seal for use in endoscopic surgery is intended to be incorporated into a cannula assembly to limit the escape of insufflation gasses from a body cavity by forming a fluid-tight seal around an instrument inserted through the cannula assembly. The ribbed seal includes a relatively flat, disk shaped elastomeric overmold portion having a central aperture sized slightly smaller than the instrument such that the aperture must expand to accommodate the instrument. Molded together with the elastomeric overmold is an array of slender ribs disposed about the aperture. The ribs are designed to be relatively flexible under lateral loads. This allows the seal to bend easily as the surgical instrument is inserted through the aperture thereby maintaining a low insertion and glide force. On the other hand, the ribs are designed to be relatively rigid when loaded axially. This rigidity provides robust radial support for the instrument inserted through the center of the array of ribs. The seal performs a centering function for the instrument due to its combined elasticity and stiffness. Finally, the seal also allows for an instrument to be removed easily while maintaining the required atmospheric integrity.
    • 用于内窥镜手术的肋状密封件旨在并入插管组件中,以通过在插入穿过套管组件的仪器周围形成流体密封来限制吹入气体从体腔逸出。 肋状密封件包括相对平坦的盘形弹性体包覆模制部分,其具有尺寸略小于仪器的中心孔,使得孔必须膨胀以适应仪器。 与弹性体包覆模制一起模制的是围绕孔设置的细长肋条的阵列。 肋设计成在横向载荷下相对柔韧。 当外科手术器械通过孔插入时,这使得密封件容易弯曲,从而保持低插入和滑动力。 另一方面,肋被设计成在轴向加载时相对刚性。 这种刚度为通过肋阵列的中心插入的仪器提供了坚固的径向支撑。 密封件由于其组合的弹性和刚度而对仪器执行定心功能。 最后,密封件还允许在保持所需大气完整性的同时轻松移除仪器。
    • 10. 发明授权
    • Access assembly with ribbed seal
    • 进口组件带肋密封
    • US07914496B2
    • 2011-03-29
    • US12124654
    • 2008-05-21
    • Oivind BrockmeierJared Alden JudsonKenneth Allen Focht
    • Oivind BrockmeierJared Alden JudsonKenneth Allen Focht
    • A61M5/178
    • A61B17/3498A61B17/3421A61B2017/3464
    • A ribbed seal for use in endoscopic surgery is intended to be incorporated into a cannula assembly to limit the escape of insufflation gasses from a body cavity by forming a fluid-tight seal around an instrument inserted through the cannula assembly. The ribbed seal includes a relatively flat, disk shaped elastomeric overmold portion having a central aperture sized slightly smaller than the instrument such that the aperture must expand to accommodate the instrument. Molded together with the elastomeric overmold is an array of slender ribs disposed about the aperture. The ribs are designed to be relatively flexible under lateral loads. This allows the seal to bend easily as the surgical instrument is inserted through the aperture thereby maintaining a low insertion and glide force. On the other hand, the ribs are designed to be relatively rigid when loaded axially. This rigidity provides robust radial support for the instrument inserted through the center of the array of ribs. The seal performs a centering function for the instrument due to its combined elasticity and stiffness. Finally, the seal also allows for an instrument to be removed easily while maintaining the required atmospheric integrity.
    • 用于内窥镜手术的肋状密封件旨在并入插管组件中,以通过在插入穿过套管组件的仪器周围形成流体密封来限制吹入气体从体腔逸出。 肋状密封件包括相对平坦的盘形弹性体包覆模制部分,其具有尺寸略小于仪器的中心孔,使得孔必须膨胀以适应仪器。 与弹性体包覆模制一起模制的是围绕孔设置的细长肋条的阵列。 肋设计成在横向载荷下相对柔韧。 当外科手术器械通过孔插入时,这使得密封件容易弯曲,从而保持低插入和滑动力。 另一方面,肋被设计成在轴向加载时相对刚性。 这种刚度为通过肋阵列的中心插入的仪器提供了坚固的径向支撑。 密封件由于其组合的弹性和刚度而对仪器执行定心功能。 最后,密封件还允许在保持所需大气完整性的同时轻松移除仪器。