A drinking straw with a built-in nanobubble generating mechanism
The straw generates nanobubbles using a built-in pressure chamber and Venturi structure, addressing the lack of nanobubble generation in existing straws, enabling easy consumption of beverages with enhanced functionality.
Patent Information
- Application Number
- JP2025002586U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2025-09-29
- Estimated Expiration
- 2035-07-31
AI Technical Summary
Existing straws lack a mechanism to generate nanobubbles, which are beneficial for maintaining beverage quality and functionality, and there is no portable solution for stable nanobubble generation.
A straw with a built-in pressure chamber and Venturi structure that generates nanobubbles using pressure difference and fluid collision, utilizing a highly corrosion-resistant material like resin or silicone.
Enables constant consumption of beverages with nanobubbles without special operation, suitable for medical, nursing care, and pet uses.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to a straw for consuming beverages, and more particularly to an improved straw that has the function of generating nanobubbles (or microbubbles) in beverages. [Background technology]
[0002] Regular straws do not have a bubble-generating mechanism and do not contribute to improving the quality or functionality of beverages.
[0003] Nanobubbles are known to contribute to maintaining the flavor of beverages, assisting in sterilization, and promoting absorption.
[0004] However, there is no technology that can stably generate nanobubbles using a portable straw-type structure.
[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-020005 [Patent Document 2] Japanese Patent Publication No. 2022-008179 [Patent Document 3] Japanese Patent Publication No. 2020-041331 Summary of the Invention
[0006] We propose a technology that uses pressure difference, fluid collision, porous film, and Venturi structure to generate nanobubbles in liquid that is sucked and pressurized through a straw. [Problem to be solved by the invention]
[0007] The straw has a built-in pressure chamber and venturi structure, allowing nanobubbles to be generated naturally by the suction flow of the beverage.
[0008] The material used is highly corrosion-resistant resin or silicone. [Effects of the Invention]
[0009] Users can constantly consume beverages containing nanobubbles through a straw without any special operations.
[0010] It can also be used for medical, nursing care, health and pet purposes. [Means for solving the problem]
[0011] We propose a technology that uses pressure difference, fluid collision, porous film, and Venturi structure to generate nanobubbles in liquid that is sucked and pressurized through a straw. [Brief explanation of the drawings]
[0012] [Figure 1] Appearance of the straw [Figure 2] Cross section of a straw [Figure 3] When in use
[0013] Figure 1 shows the exterior, Figure 2 shows the storage state, and Figure 3 shows the fluid flow when in use. When fluid is sucked through the straw, it passes through the spiral part inside the straw, causing the water pressure to increase. Once the fluid has passed through the spiral part, it reaches the inside of the straw tube, where the water pressure drops suddenly, creating a pressure difference that generates nanobubbles. [Explanation of symbols]
[0014] 1 straw body 2 spiral part 2 3 flow paths 3
Claims
[Claim 1] A drinking straw for sucking up a beverage from a beverage container, characterized in that the straw has a spiral portion inside that generates nanobubbles due to changes in fluid flow rate and pressure differences.