Disposable pipette

Abstract

Abstract Apparatus into which fluids are taken and which comprises transparent resilient plastic tubes, or straws, of substantially uniform inside diameter and within which are disposed reagent matrixes, or chemically impregnated reagent or indicator strips, for absorbing and/or holding color reactions for visual or photometric interpretation or analysis. Liquid samples are introduced into the tube, which may be termed a straw, so the liquid samples come into contact with ends of the reagent materials, which then absorb and/or hold color reactions for visual or photometric interpretation or analysis. The tubes or straws may be open at both ends, or closed at one end and open at the other. Tubes which are closed at one end have the reagent material at the open end of such tubes, and liquid samples are introduced or drawn into the tubes by suction effected by compressing a short section of the tubes and then releasing the compressed part of the tube. The liquid is discharged from the tube by again compressing a section of the tube. Thus the tubes or straws serve as sample pipettes, as well as holders for reagent matrixes and/or holding color reactions for visual or photometric interpretation or analysis. It is to be understood that the term ''''tube'''' as used herein also means straw and vice versa.

Inventors

• 👤 J Grubb
• 👤 K Tomei

Bibliographic Details