Interdental brush

The interdental brush design addresses the issue of uneven bristle distribution by interspersing large and small filaments within each pitch, ensuring effective cleaning and easy dirt removal by maintaining filament positions and preventing entanglement.

JP2026084200APending Publication Date: 2026-05-21YAMATO ESURON
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
YAMATO ESURON
Filing Date
2024-11-11
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Conventional interdental brushes with multiple types of filaments arranged in separate sections face issues with filaments collapsing and entangling, leading to uneven distribution of bristle tips, which hinders effective cleaning between teeth.

Method used

An interdental brush design with large-diameter and small-diameter filaments interspersed within each pitch of the spiral section, where large-diameter filaments support small-diameter filaments, maintaining upright positions and utilizing surface tension to prevent entanglement and enhance cleaning efficiency.

Benefits of technology

The design ensures effective cleaning by leveraging the properties of both filament types, allowing for efficient debris removal and moisture retention, preventing tangling, and facilitating easy washing of dirt.

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Abstract

This product provides an interdental brush that uses multiple types of filaments and utilizes the characteristics of each type of filament to enable effective cleaning between teeth. [Solution] An interdental brush 11 having a spiral section 12 with continuously twisted wires and a plurality of filaments 14, 15 sandwiched by the wires, wherein the unit number of filaments 18, which is the number of filaments sandwiched per pitch of the spiral section, includes a large-diameter filament 14 which is a portion of the filaments, and a small-diameter filament 15 which is a portion of the filaments different from the aforementioned portion and whose single-fiber wire diameter is smaller than that of the large-diameter filament.
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