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. 03, 2006
Filed:
Mar. 13, 2002
John M Barker, Ventura, CA (US);
Thor R. Halseth, Agoura, CA (US);
Joseph Kovalski, Ventura, CA (US);
Robert T. Mcwethy, Ventura, CA (US);
Bernardo Challiol, Ventura, CA (US);
John M Barker, Ventura, CA (US);
Thor R. Halseth, Agoura, CA (US);
Joseph Kovalski, Ventura, CA (US);
Robert T. McWethy, Ventura, CA (US);
Bernardo Challiol, Ventura, CA (US);
MDC Investment Holdings, Inc., Wilmington, DE (US);
Abstract
A safety needle-bearing device for mixing and injecting medication from a two-chambered cartridge is provided. The device includes a needle that extends through the forward end of a barrel. A two-chambered cartridge is attached to the barrel and contains components of a medication stored separately in the chambers. A plunger in the rearward end of the cartridge can be advanced into the cartridge to combine the separate components and prepare the medication. As the cartridge is advanced forwardly into the barrel, the medication is injected through the needle and into a patient. At the completion of the injection stroke, the cartridge engages a needle retainer to actuate needle retraction. The needle is subsequently retracted to shield the contaminated needle.