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:
Jan. 25, 2005
Filed:
Nov. 01, 2002
Martin E. Smith, Camarillo, CA (US);
Thomas R. Coughlin, Jr., Tulsa, OK (US);
Earl R. Boyer, Simi Valley, CA (US);
Stuart J. Daley, Camarillo, CA (US);
Martin E. Smith, Camarillo, CA (US);
Thomas R. Coughlin, Jr., Tulsa, OK (US);
Earl R. Boyer, Simi Valley, CA (US);
Stuart J. Daley, Camarillo, CA (US);
Maxxon, Inc., Tulsa, OK (US);
Abstract
A safety syringeincludes a generally tubular bodyhaving a needle endand plunger end, needleand retractable needle seat, two-way valve, plunger, stopper, piston, and rear plunger seal. During use, the plunger may be moved to create a vacuum in the plunger. The user then moves the plunger toward the needle end, pressurizing a vial, then pulls backward to a selected position corresponding to the desired volume of fluid to be withdrawn. At the conclusion of the injection stroke, the piston is disengaged from the plunger. The vacuum within the plunger retracts the needle safely into the tubular body.