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:
Mar. 28, 2017
Filed:
Nov. 09, 2012
Unitract Syringe Pty Ltd, Sydney, AU;
Craig Stephen Thorley, Largs, AU;
Joseph Hermes Kaal, Raworth, AU;
Christopher Rafferty, Raworth, AU;
Huw Umberto Wallis, Gladesville, AU;
Ernesto Hueso-Monis, Randwick, AU;
Kamman Law, Strathfield, AU;
Richard Sokolov, Earlwood, AU;
Unitract Syringe PTY LTD, Sydney, AU;
Abstract
A retractable needle is provided for a syringe comprising a barrel and a plunger that comprises a portion capable of engaging the retractable needle for retraction. The retractable needle comprises a cannula, a needle body having a plunger-engaging member, at least one aperture and an elongate portion which houses the cannula, the cannula comprising an end which is in fluid communication with the at least one aperture, wherein the at least one aperture is located between the plunger-engaging member and the elongate portion. The positioning of the at least one aperture distal to the plunger-engaging member maximizes the efficiency of fluid delivery.