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. 15, 1988
Filed:
Aug. 22, 1983
John R Waters, Towson, MD (US);
Becton, Dickinson and Company, Franklin Lakes, NJ (US);
Abstract
A vacuum blood collection system is provided. The blood collection system contains an evacuated sample collection container which is open at both ends. One end of the container is closed by a self-sealing puncturable stopper adapted to be penetrated by one end of a double ended needle. The other end of the collection container is closed by a slidable sealing stopper affixed to a plunger to provide a piston assembly. The blood collection system also includes restraining means to prevent premature movement of the slidable sealing stopper and may contain a temporary seal to prevent movement of the piston assembly prior to the need for removing the blood specimen from the collection container.