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:
May. 20, 2003
Filed:
Jul. 18, 2001
Fraser R. Sharp, Vancouver, CA;
Inviro Medical Devices Ltd., Bridgetown, BB;
Abstract
A plastic cannula has a hub mounting a pair of flanges forming a Luer lock connection with a standard syringe having female threads about its distal end. A cannula guard receives the cannula and has radially inward projections for engaging portions of the cannula to rotate the cannula guard and cannula relative to the syringe to fix the cannula onto the syringe. The cannula guard is removed by rotating the guard in an opposite direction, causing projections along the inner surface of the cannula guard to ratchet past ribs on the cannula, enabling removal of the cannula guard from the cannula without applying sufficient torque to the cannula to remove the cannula from the syringe.