Bennie Thompson,Beth McCombs,John Hunt,John Kretcham,John A. Hibner
申请号：
US12963855
公开号：
US08313444B2
申请日:
2010.12.09
申请国别(地区):
US
年份:
2012
代理人:
摘要：
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.
