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:
Apr. 12, 2022
Filed:
Mar. 27, 2014
Unl Holdings Llc, New York, NY (US);
Robert Scott Russo, Malvern, PA (US);
Brandon J McKee, Nesquehoning, PA (US);
John W Carosi, Collegeville, PA (US);
Jyoti Gupta, Atlanta, GA (US);
UNL HOLDINGS LLC, New York, NY (US);
Abstract
Needle assemblies for retractable needle syringes include a needle, a needle seal, and a needle retainer, wherein the needle includes one or more barbs substantially at its proximal end. The needle retainer engages an optional needle-over-mold component that is fixedly attached to the needle. The needle-over-mold may be connected to the distal surface of the needle seal and may travel, such as by being a couple component, with the needle during the operation of the syringe. A safety syringe includes a barrel having a needle assembly mounted at a distal end and a plunger assembly mounted at a proximal end. A drug may be contained in a drug chamber of barrel, between the plunger assembly and needle assembly, proximally of the needle seal for drug delivery to a user. The plunger assembly includes a plunger seal having a needle-engaging portion to capture the needle at the barb for retraction.