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:
Sep. 16, 2008
Filed:
Mar. 05, 2004
Alexander Huang, Menlo Park, CA (US);
Henry Lao, Sunnyvale, CA (US);
David Needleman, Sausalito, CA (US);
Alexander Huang, Menlo Park, CA (US);
Henry Lao, Sunnyvale, CA (US);
David Needleman, Sausalito, CA (US);
Percutaneous Systems, Inc., Mountain View, CA (US);
Abstract
Tissue biopsy is performed through a central passage of a cannula covered with a protective sleeve. The protective sleeve is attached at one end to a location at or near a distal end of the cannula. After the biopsy procedure is completed, the cannula is withdrawn so that its exterior slides through the sleeve. In this way, the trailing edge of the sleeve is invaginated within the proximal portions of the itself to envelop the sleeve exterior and reduce the risk of inadvertent tumor cell seeding.