Cartridge for dispensing a fluid, automatic analyzer and method of analyzing a biological sample

US10018644B2 · kind B2 · utility

Assignees

• Roche Diagnostics Operations, Inc. · US
• Hitachi High-Technologies Corporation · JP

Inventors

• Thorsten Brueckner · Schriesheim, DE
• Christoph Boehm · Viernheim, DE
• Juergen Spinke · Lorsch, DE
• Terumi Tamura · Hitachinaka, JP
• Taku Sakazume · Hitachinaka, JP
• Kyoko Imai · Hitachinaka, JP

Key dates

• Filing date: Jan 26, 2016
• Grant date: Jul 10, 2018
• Expiry date: Feb 8, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01L2400/082
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A cartridge for dispensing a fluid is presented. The cartridge comprises a reservoir chamber for receiving the fluid. The reservoir chamber has a fluid outlet. The cartridge further comprises a controllable dispenser component for dispensing a dispensing volume of the fluid from the reservoir chamber. The dispenser component is connected to the fluid outlet of the reservoir. The cartridge further comprises a single compressible fluid pump with a single elastic pumping element and a conduit extending from the fluid pump towards the fluid outlet. The fluid pump discharges a mixing volume of the fluid from the conduit into the reservoir chamber upon compression of the elastic pumping element. The mixing volume depends on the degree of compression of the elastic pumping element. The fluid pump sucks in the mixing volume from the reservoir into the conduit upon decompression of the elastic pumping element.