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. 03, 2009
Filed:
Oct. 21, 2004
Michael E. Miller, Trafalgar, IN (US);
Michael E. Miller, Trafalgar, IN (US);
Suros Surgical Systems, Inc., Indianapolis, IN (US);
Abstract
A biopsy apparatus including a housing having a distal end, an outer cannula, an inner cannula, at least one motor, a vacuum source, and a leak path is disclosed. The outer cannula defines a first inner lumen having an open proximal end and a longitudinal axis extending therethrough that communicates with a tissue receiving opening. The inner cannula is slidably disposed within the first inner lumen and defines a second inner lumen that is coaxial with the longitudinal axis of the first inner lumen. The motor moves the inner cannula within the outer cannula. The vacuum source in fluid communication with the second inner lumen, aspirates tissue through the second inner lumen. The leak path is in communication with the atmosphere and is positioned transverse to the longitudinal axis of the first and second inner lumens to relieve vacuum behind tissue that is being aspirated though the second inner lumen.