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:
Jul. 15, 2014
Filed:
Sep. 25, 2012
Daniel A. Worrel, Dallas, TX (US);
Joshua S. Redstone, Dallas, TX (US);
Daniel A. Worrel, Dallas, TX (US);
Joshua S. Redstone, Dallas, TX (US);
Suremka, LLC, Dallas, TX (US);
Abstract
A cannula assembly having a plurality of outwardly-biased flexible fins capable of inward movement such that the fins converge upon insertion of a trocar device. The fins include a slot formed therein, with a corresponding raised feature on the trocar shaft capable of engaging the slots. Inward movement of the trocar within the cannula lumen causes the fins to converge. An additional embodiment utilizes outwardly-biased flexible fins that lock together in a closed position, with corrugated features in the fin inner surface that contact the trocar shaft such that, upon insertion of the trocar, the fins unlock and splay outward.