Device for microbiological testing

US4248830A · kind A · utility

Assignee

• VEB Arzneimittelwrk Dresden · DE

Inventors

• Karl-Heinz Kallies · Bad Schandau, DE
• Manfred Winkler · Herzogenaurach, DE

Key dates

• Filing date: Jul 23, 1979
• Grant date: Feb 3, 1981
• Expiry date: Jul 23, 1999

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01L9/06
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A micro test tube adapted for use in carrying out microbiological determinations, and being especially adapted for detection of bacteria in body fluids such as milk and urine comprising a capillary tube which increases in diameter at one end thereof to form a small generally cylindrical sample tube, sealing means for sealing the open ends of the capillary and sample tubes and movable sealing means such as a bead or needle for sealing off the passage between the capillary and sample tube portions of the micro tube, the sealing means sealing for the open end of the sample tube being selected to serve as aspirator means for delivering the sample into the tube and the sealing means for sealing the capillary being selected to also serve as a stand for the micro test tube.