Diagnostic test device with capillary grooves

The diagnostic testing device with capillary grooves addresses the issue of sample adherence and droplet formation in polypropylene consumables by promoting consistent fluid transfer, enhancing assay performance and result accuracy.

JP2026506968APending Publication Date: 2026-02-27BECTON DICKINSON & CO
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Patent Information

Application Number
JP2025547906
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-02-24
Filing Date
2024-02-21
Publication Date
2026-02-27

AI Technical Summary

Technical Problem

Consumable diagnostic test devices made of polypropylene face issues with aqueous solutions like ELB adhering to surfaces, leading to reduced sample availability and concentration variability in nucleic acid-based tests due to droplet formation and clouding, affecting test performance.

Method used

The diagnostic testing device incorporates a cartridge with a sample preparation reservoir and diagnostic testing reservoir featuring capillary grooves along the inner surface to promote fluid flow, minimizing droplet formation and ensuring consistent sample transfer.

Benefits of technology

This design increases the volume of sample available for assay reactions, enhances accuracy and specificity of test results, and maintains consistent reagent concentration by reducing surface adherence and droplet formation, thereby improving diagnostic test reliability.

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Abstract

A diagnostic testing device for performing tests on biological or environmental samples is provided. In one aspect, the diagnostic testing device includes a chamber configured to receive fluid from a sample preparation reservoir in a first section of the chamber, and a plurality of spaced valleys along an interior surface of the chamber, each of the plurality of spaced valleys having a curved cross-section and configured to promote flow of the fluid toward a second section of the chamber.
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