公开(公告)号：US20220096116A1

公开(公告)日：2022-03-31

申请号：US17455828

申请日：2021-11-19

申请人： Robert McFarland ,  Joel D. White

发明人： Robert McFarland ,  Joel D. White

IPC分类号： A61B17/34 ,  A61B17/32 ,  A61B10/04 ,  A61B34/20

摘要： A medical instrument for cutting soft tissue during an interventional radiology procedure includes a hypodermic needle and a stylet at least partially located within the needle bore. The portion of the stylet located within the needle bore and the needle collectively form at least one fluid passageway. The stylet is movable relative to the hypodermic needle along the needle axis. The stylet is adjustable between a retracted configuration and a protracted configuration. The stylet head is located within the needle bore when the medical instrument is in the retracted configuration. The stylet head is located external to the needle bore when the medical instrument is in the protracted configuration. The fluid passageway enables fluid to flow from the proximal needle end to the distal needle end when the stylet is in the retracted configuration and in the protracted configuration.