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:
Nov. 03, 2009
Filed:
Dec. 29, 2004
John A. Hibner, Mason, OH (US);
Kevin D. Predmore, Heath, OH (US);
Lawrence Bullen, Centerburg, OH (US);
Vincent J. Contini, Powell, OH (US);
James E. Dvorsky, Norwich Township, OH (US);
Eric R. Navin, Columbus, OH (US);
John A. Hibner, Mason, OH (US);
Kevin D. Predmore, Heath, OH (US);
Lawrence Bullen, Centerburg, OH (US);
Vincent J. Contini, Powell, OH (US);
James E. Dvorsky, Norwich Township, OH (US);
Eric R. Navin, Columbus, OH (US);
Ethicon Endo-Surgery, Inc., Cincinnati, OH (US);
Abstract
A core sampling biopsy device is compatible with use in a Magnetic Resonance Imaging (MRI) environment by being driven by either a pneumatic rotary motor or a piezoelectric drive motor. The core sampling biopsy device obtains a tissue sample, such as a breast tissue biopsy sample, for diagnostic or therapeutic purposes. The biopsy device may include an outer cannula having a distal piercing tip, a cutter lumen, a side tissue port communicating with the cutter lumen, and at least one fluid passageway disposed distally of the side tissue port. The inner cutter may be advanced in the cutter lumen past the side tissue port to sever a tissue sample. A cutter drive assembly maintains a fixed gear ratio relationship between a cutter rotation speed and translation speed of the inner cutter regardless of the density of the tissue encountered to yield consistent sample size.