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:
Mar. 30, 2004
Filed:
Jan. 06, 2003
Applicant:
Inventor:
Alvin Tan Chee Leong, Singapore, SG;
Assignee:
Becton, Dickinson and Company, Franklin Lakes, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 5/178 ;
U.S. Cl.
CPC ...
A61M 5/178 ;
Abstract
A needle assembly includes a transparent or translucent housing with a fluid inlet end, a fluid outlet end and a flashback chamber therebetween. Substantially axially aligned inlet and outlet cannulas extend from the housing and communicate with the chamber. The external end of the outlet cannula is covered by a sealable sleeve. Relative volumes of the cannulas, the chamber and the sleeve are selected to provide rapid reliable flashback indicative of venous entry.