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. 19, 2014
Filed:
Aug. 23, 2012
Katlin M. Adlon, Harrisburg, PA (US);
Philip A. Weaver, Denver, PA (US);
Joseph Hermes Kaal, Raworth, AU;
Christopher Charles Rafferty, Raworth, AU;
Craig Stephen Thorley, Largs, AU;
Joel M. Ondrejickla, Lewisberry, PA (US);
Katlin M. Adlon, Harrisburg, PA (US);
Philip A. Weaver, Denver, PA (US);
Joseph Hermes Kaal, Raworth, AU;
Christopher Charles Rafferty, Raworth, AU;
Craig Stephen Thorley, Largs, AU;
Joel M. Ondrejickla, Lewisberry, PA (US);
Unitract Syringe Pty Ltd, Sydney, AU;
Abstract
An actuation mechanism for an automatic injector includes a first actuation spring, a first actuation pill, a second actuation spring, and a second actuation pill. In an initial configuration the first actuation spring resides in a compressed, energized state substantially within an upper portion of first actuation pill and the second actuation spring resides in a compressed, energized state between the first actuation pill and the second actuation pill. An automatic injector includes a housing, an activation mechanism, an actuation mechanism, and a syringe cartridge having a plunger and a needle assembly. A retractable syringe may be utilized as a syringe cartridge, such as a prefilled retractable syringe with integrated safety features which retract the needle after use. The automatic injector may be utilized to inject the needle, deliver a drug treatment, and activate retraction of the needle. Methods of assembly and operation are also provided.