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:
Sep. 06, 1994
Filed:
Mar. 19, 1992
Marshall S Levine, Wayne, PA (US);
Other;
Abstract
A dispenser for blood and other biological specimens is disclosed which provides a means of obtaining a small predetermined quantity of specimen from a closed container without the need to remove the stopper from the container. The cannula of the device is caused to pierce the container's rubber stopper forming an assembly. When the said assembly is forced against a target surface, such as microscope slide, the force compresses the stopper and thereby reduces the volume inside the container sufficiently to eject a drop of fluid which is dispensed onto a target surface. Stabilizing supports are provided so that fluid emerges from a dispensing tip located a predetermined distance above the target surface which determines the quantity of fluid dispensed. The supports also transmit reactive force from the target surface to compress the rubber stopper of the closed specimen tube.