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:
Dec. 29, 1981
Filed:
Dec. 27, 1979
Applicant:
Inventor:
Joseph Kaufman, Emerson, NJ (US);
Assignee:
Becton, Dickinson and Company, Paramus, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128766 ; 128764 ; 137854 ;
Abstract
A blood sampling device having a valve assembly which prevents the backflow of blood into a patient, and which is especially suitable for multiple sample collection. The valve assembly includes a mounting structure for a valve member, a chamber to house the valve, and a valve which has a resilient skirt allowing fluid flow only in one direction. The valve member is prevented from cocking by a protruding portion which fits within a recess of the mounting structure and by valve positioning members within the valve chamber.