Harold W. Craig;Edward A. Rhad;John A. Hibner;Richard P. Nuchols
发明人:
Edward A. Rhad,John A. Hibner,Harold W. Craig,Richard P. Nuchols
申请号：
US12953715
公开号：
US20120109007A1
申请日:
2010.11.24
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A biopsy device includes a body, a needle, and a cutter. A motor is operable to both move the cutter relative to the needle and actuate a needle firing assembly to retract and fire the needle relative to the body. The biopsy device also includes a needle rotation assembly that is configured to substantially prevent rotation of the needle about the longitudinal axis when the needle is in a proximal position yet permit rotation of the needle about the longitudinal axis when the needle is in a distal position. A valve assembly of the biopsy device includes a slider that selectively couples a secondary lumen in the needle with either atmospheric air or saline based on the longitudinal position of the slider. The cutter passes through the slider.
