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:
Jan. 27, 2009
Filed:
Mar. 29, 2006
Robert F. Weikel, Jr., Hamilton, OH (US);
Gwendolyn Perez Payne, Cincinnati, OH (US);
John R. Andrisek, Liberty Township, OH (US);
Robert F. Weikel, Jr., Hamilton, OH (US);
Gwendolyn Perez Payne, Cincinnati, OH (US);
John R. Andrisek, Liberty Township, OH (US);
Ethicon Endo-Surgery, Inc., Cincinnati, OH (US);
Abstract
Devices and methods for varying the size of a tissue sample in a biopsy device are disclosed. The biopsy device includes a needle with a tissue aperture and an inner cutter which translates within the needle. The inner cutter may be controlled to selectively block the aperture thereby varying the sample size. A half cylindrical sleeve may be resiliently attached to the exterior of the needle in order to block the aperture. The sleeve includes gripping flanges on its bottom surface, and a beveled distal tip configured to avoid damage from the inner cutter. The distal tip may include an inner metallic guide or may be heightened to avoid contact with the cutter.