A biopsy device having a translating and rotating cutter is disclosed. The translational speed of the cutter is varied using a variable pitch member. The variable pitch member can include a shaft having a relatively coarse threaded portion for rapid cutter advance and a relatively finer threaded portion for cutter advance during tissue severing.
申请公布号
WO2004075728(A2)
申请公布日期
2004.09.10
申请号
WO2004US05381
申请日期
2004.02.24
申请人
ETHICON ENDO-SURGERY, INC.
发明人
THOMPSON, BENNIE;MCCOMBS, BETH;HUNT, JOHN;KERTCHAM, JOHN;HIBNER, JOHN, A.