The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2014
Filed:
May. 18, 2009
Kyle P. Moore, Mason, OH (US);
Haresh D. Patil, Dhule, IN;
Michael J. Andreyko, Cincinnati, OH (US);
Shailendra K. Parihar, Mason, OH (US);
Eric B. Smith, Cincinnati, OH (US);
Kyle P. Moore, Mason, OH (US);
Haresh D. Patil, Dhule, IN;
Michael J. Andreyko, Cincinnati, OH (US);
Shailendra K. Parihar, Mason, OH (US);
Eric B. Smith, Cincinnati, OH (US);
Devicor Medical Products, Inc., Cincinnati, OH (US);
Abstract
A biopsy device comprises a body, a needle, and a cutter. A self-reversing cutter translation mechanism translates the cutter proximally and distally in response to rotation of the cutter in a single rotational direction. The cutter translation mechanism comprises a lead screw with discretely formed threads and a rotatable pawl. The cutter is translated proximally when the pawl is in a first rotational orientation; and distally when the pawl is in a second rotational orientation. Resilient members cause the pawl to be rotated between the first and second rotational orientations when the cutter reaches a distal position and a proximal position. A vacuum draws severed tissue samples through the interior of the cutter to deposit the samples in a holder. The translation mechanism engages a valve mechanism to provide simultaneous venting to part of the needle and reversal of the pawl orientation when the cutter reaches a distal position.