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:
May. 05, 2009
Filed:
Mar. 06, 2001
Michael J. Botich, Oxnard, CA (US);
Thor R. Halseth, Agoura, CA (US);
John Barker, Ventura, CA (US);
Michael J. Botich, Oxnard, CA (US);
Thor R. Halseth, Agoura, CA (US);
John Barker, Ventura, CA (US);
MDC Investment Holdings, Inc., Wilmington, DE (US);
Abstract
A safety needle-bearing medical advice () is provided. Specifically, a safety device for injecting medicinal fluid into a patient is provided. The device comprises a hollow housing (), a needle assembly () and a plunger (). The needle assembly () releasably retains a needle () in an extended position in which the sharpened tip of the needle is exposed for use. At the end of an injection stroke, the plunger () engages the needle assembly (), such that the needle () is released and retracted into a cavity () within the plunger. The device () includes structure for reducing the dead-space volume, which represents the amount a fluid remaining in the device at the end of an injection stroke. In addition, preferably the device () includes structure for minimizing the volume of potential air bubbles trapped in the medicinal fluid prior to an injection.