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:
Aug. 11, 2015
Filed:
Nov. 11, 2011
Alan Winfree, Franklin, TN (US);
Robert Henry, Nashville, TN (US);
Alan Winfree, Franklin, TN (US);
Robert Henry, Nashville, TN (US);
Specialty Care, Inc., Nashville, TN (US);
Abstract
A cannula system is described. The cannula system may be formed of biocompatible materials that are suitable to be sterilized. Accordingly, the cannula system may be reusable for a relatively large number of surgical procedures assuming conventional sterilization techniques are employed after each surgical procedure. Additionally, the cannula system may be provided with an internal valve system disposed in a port portion thereof wherein the valve system may be operable to receive the trocar there through, as well as maintaining insufflation of the body cavity. Furthermore, the cannula system may be provided with a plurality of rib members formed on an external surface of the cannula shaft, wherein the rib members may engage the tissues adjacent the incision, thus maintaining the position of the cannula shaft and reducing and/or lessening relative movement of the cannula shaft.