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:
Feb. 05, 2019
Filed:
Aug. 30, 2012
Martin J. Gibler, West Chester, OH (US);
Mark A. Bennett, Loveland, OH (US);
Kenneth R. Waeber, Milford, OH (US);
Kenneth E. Hogue, Chapel Hill, NC (US);
Christoph L. Gillum, Middletown, OH (US);
Patrick A. Harrell, Loveland, OH (US);
David A. Parrott, Cincinnati, OH (US);
Sean E. Mackey, Grayslake, IL (US);
Rajkumar V. Conjeevaram, Lake Bluff, IL (US);
Thomas Rebne, Woodstock, GA (US);
Bradley A. Clark, High Point, NC (US);
Jeremy L. Hemingway, Cincinnati, OH (US);
Ji Zhou, Grayslake, IL (US);
Martin J. Gibler, West Chester, OH (US);
Mark A. Bennett, Loveland, OH (US);
Kenneth R. Waeber, Milford, OH (US);
Kenneth E. Hogue, Chapel Hill, NC (US);
Christoph L. Gillum, Middletown, OH (US);
Patrick A. Harrell, Loveland, OH (US);
David A. Parrott, Cincinnati, OH (US);
Sean E. Mackey, Grayslake, IL (US);
Rajkumar V. Conjeevaram, Lake Bluff, IL (US);
Thomas Rebne, Woodstock, GA (US);
Bradley A. Clark, High Point, NC (US);
Jeremy L. Hemingway, Cincinnati, OH (US);
Ji Zhou, Grayslake, IL (US);
AbbVie Inc., North Chicago, IL (US);
Abstract
A syringe containing a high water content product and for use in a drug infusion system is provided. The syringe includes a plunger carrying front and rear o-rings made of a diene rubber compound such as chlorobutyl rubber or bromobutyl rubber to impart very low gas permeability characteristics to the o-rings. The plunger may be molded as a single part or in two parts. If molded as one part with radially-engaging mold portions, the seal glands in the plunger may include parting lines from the mold. If molded as two parts with axially-engaging mold portions, the front seal gland may include a sealing surface and under cut that has no parting line. The o-rings may be surface treated with a lubricant to improve sealing where the molding process gives rise to parting lines in the seal glands.