Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 12, 2010
Patent Application Number
11352969
Date Filed
February 13, 2006
Patent Primary Examiner
Patent abstract
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.
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