Disposable bottle-free self-humidifying nasal oxygen cannula

By adjusting the pore volume of the nasal oxygen cannula humidification material through a sliding rod and slot structure, the problem of the inability to adjust the existing nasal oxygen cannula humidification structure is solved, enabling flexible adjustment of humidification efficiency and meeting personalized humidification needs.

CN224207191UActive Publication Date: 2026-05-08HENAN DI YI MEDICAL TECH DEV CO LTD
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Patent Information

Application Number
CN202521130111.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-04
Publication Date
2026-05-08
Estimated Expiration
2035-06-04

AI Technical Summary

Technical Problem

The existing nasal oxygen cannula humidification structure cannot be adjusted according to the humidification needs of different patients, resulting in problems of insufficient or excessive humidification.

Method used

A disposable bottleless self-humidifying nasal oxygen cannula was designed. The pore volume of the humidifying material can be adjusted by a slide bar and a slot structure, so as to achieve convenient adjustment of the humidification degree. Pushing the slide bar in or pulling it out changes the fluffy state of the humidifying material to adjust the humidity.

Benefits of technology

It enables flexible adjustment of humidification levels according to patient needs, improves humidification efficiency, meets personalized needs, and avoids problems of insufficient or excessive humidification.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to the technical field of medical instruments, and discloses a disposable bottle-free self-humidifying nasal oxygen cannula which comprises a humidifying material arranged in a humidifying cavity. The pressing plate is slidably connected to the inner side wall of the humidifying cavity, and the pressing plate is arranged on the right side of the humidifying material; one end of the sliding rod is fixedly connected to the right side wall of the pressing plate, and the other end of the sliding rod penetrates through and extends out of the humidifying cavity. When the sliding rod is pulled out, the sliding rod is pushed into the humidifying cavity, the clamping protrusions are pressed to deform and slide into the clamping grooves, at the moment, the sliding rod compresses the humidifying material, the pore volume of the humidifying material is reduced, free water is squeezed back into the humidifying material, surface moisture is reduced, the evaporation capacity is reduced, and the oxygen humidifying degree is reduced; the fiber layer in the humidifying material extends from a compressed state to a fluffy state, the pore volume is increased, free water stored inside migrates to the surface due to the action of gravity and fiber tension, moisture attached to the fiber surface and the surface of the humidifying material is increased, the evaporation capacity is increased when the humidifying material makes contact with oxygen, and the oxygen humidifying degree is increased.
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