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. 23, 2016
Filed:
Mar. 08, 2012
Sarnath Chattaraj, Simi Valley, CA (US);
Poonam S. Gulati, La Canada, CA (US);
Kiem Dang, Thousand Oaks, CA (US);
Jocelyn Anne Montebon, Valencia, CA (US);
Sarnath Chattaraj, Simi Valley, CA (US);
Poonam S. Gulati, La Canada, CA (US);
Kiem Dang, Thousand Oaks, CA (US);
Jocelyn Anne Montebon, Valencia, CA (US);
Medtronic MiniMed, Inc., Northridge, CA (US);
Abstract
Syringe pistons for a fluid syringe, and related sealing elements, are presented here. A syringe piston includes a piston body having a fluid end, an actuator end, and an outer seal-retaining surface between the fluid end and the actuator end. The syringe piston may utilize a piston sealing sleeve or a piston sealing cover. The sleeve can be coupled to the piston body around the outer seal-retaining surface, the piston sealing sleeve having a fin-shaped fluid seal element to form an interference fluid seal with an interior wall of a syringe barrel. The sealing cover can be coupled overlying the tip of the piston body. The cover has a fin-shaped fluid seal element to form an interference fluid seal with an interior wall of a syringe barrel.