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:
Oct. 20, 2009
Filed:
Jun. 23, 2005
Christopher G. Dixon, Bloomington, IN (US);
Jacob A. Flagle, Indianapolis, IN (US);
Andrew K. Hoffa, Bloomington, IN (US);
Joseph P. Lane, Methuen, MA (US);
Christopher G. Dixon, Bloomington, IN (US);
Jacob A. Flagle, Indianapolis, IN (US);
Andrew K. Hoffa, Bloomington, IN (US);
Joseph P. Lane, Methuen, MA (US);
Cook Incorporated, Bloomington, IN (US);
Sabin Corporation, Bloomington, IN (US);
Abstract
A pressure injection syringe with an actuator that includes a plunger for pressurizing viscous fluid material within a chamber. The plunger distal tip includes a high pressure seal defined by a seal member within a seal seat. The high pressure seal is viscoselective to permit air passage therepast for aspiration, and to prohibit viscous material passage therepast during actuation of the actuator wherein high pressure is applied to the material within the chamber. The viscoselective seal may be defined for example by small axial openings in the seal seat that permit aspiration of air therepast during initial plunger insertion into the chamber, but fluid escape is prohibited by the seal member when the seal member is pressed firmly against a collar of the plunger proximally adjacent the seal seat by initial engagement of the seal member with the viscous material, thus completely sealing the chamber at the proximal end thereof.