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    • 109. 发明授权
    • Vacuum assisted biopsy device
    • 真空辅助活检装置
    • US07988642B2
    • 2011-08-02
    • US12039364
    • 2008-02-28
    • Terry D. HardinJoseph L. MarkWilliam O. HodgeZachary R. NicosonMichael E. Miller
    • Terry D. HardinJoseph L. MarkWilliam O. HodgeZachary R. NicosonMichael E. Miller
    • A61B10/02
    • A61B10/0275A61B10/0283A61B2010/0208
    • A biopsy device is disclosed that comprises a cutting element mounted to a handpiece and a vacuum chamber. The cutting element comprises a stylet assembly and an outer cannula assembly. The stylet assembly includes a stylet that includes an open proximal end and a tissue opening at a distal end thereof. The tissue receiving opening is in communication with a lumen extending through the stylet. The outer cannula assembly includes an outer cannula that is slidably mounted over the stylet and has an open distal end with a cutting edge formed thereon. The vacuum chamber is in communication with the lumen of the stylet. The stylet is selectively advanced distally outwardly with respect to outer cannula to expose the tissue opening to targeted tissue. The outer cannula is selectively advanced over the tissue opening to sever tissue, while vacuum is generated in the vacuum chamber and delivered to the tissue opening through the lumen. The vacuum causes tissue to be drawn into and maintained in the tissue opening while the outer cannula severs tissue to obtain a biopsy core.
    • 公开了一种活检装置,其包括安装到手持件和真空室的切割元件。 切割元件包括探针组件和外套管组件。 探针组件包括探针,该探针包括开放的近端和在其远端的组织开口。 组织接收口与延伸穿过通丝针的内腔连通。 外套管组件包括外套管,其可滑动地安装在通球针上方并且具有形成在其上的切削刃的敞开的远端。 真空室与探针的内腔连通。 探针相对于外套管选择性向外远端向外推进,以将组织开口暴露于目标组织。 选择性地将外套管推进到组织开口上以切断组织,同时在真空室中产生真空并通过内腔输送到组织开口。 真空使得组织被拉入并保持在组织开口中,同时外套管切断组织以获得活组织检查核心。