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    • 1. 发明授权
    • Surgical stapling instrument having an electroactive polymer actuated medical substance dispenser
    • 具有电活性聚合物致动的药物分配器的手术吻合器械
    • US08905977B2
    • 2014-12-09
    • US11141753
    • 2005-06-01
    • Frederick E. SheltonJoseph C. HueilJerome R. Morgan
    • Frederick E. SheltonJoseph C. HueilJerome R. Morgan
    • A61M5/00A61B17/072A61B17/00A61B17/29
    • A61B17/07207A61B2017/00398A61B2017/00871A61B2017/2912
    • A surgical stapling and severing instrument enables minimally invasive surgical procedures by having upper and lower jaws (i.e., anvil and staple channel) that are positioned with an elongate shaft and handle through a surgical opening, and in particular through a cannula of a trocar. A pair of fluid bladders (lift bags) are positioned in the staple channel beneath a proximally projecting lever tray so that transfer of fluid from the handle causes closing and clamping of the anvil. The bi-directional fluid control may be mechanically produced at the handle or by activating an electroactive polymer actuator. Once firing is sensed, an EAP plunger in a medical substance syringe inserted into the elongate shaft is activated to dispense a medical substance (e.g., anesthetics, adhesives, cauterizing substances, antibiotics, etc.) and is guided along a firing bar to a cutting surface of an E-beam placing the substance on tissue as severed.
    • 外科缝合和切割器械通过具有上下钳口(即,砧座和缝合通道)来进行微创外科手术,所述上钳口和下颚定位成具有细长轴和手柄通过手术开口,并且特别是通过套管针的插管。 一对流体囊(提升袋)被定位在近侧突出的杆托板下方的钉通道中,使得来自手柄的流体的传送导致砧座的闭合和夹紧。 双向流体控制可以在手柄处或通过激活电活性聚合物致动器机械地产生。 一旦感测到烧灼,则插入到细长轴中的药物注射器中的EAP柱塞被激活以分配医疗物质(例如麻醉剂,粘合剂,烧灼物质,抗生素等),并且沿着击球杆被引导至切割 电子束的表面将物质放置在组织上切断。