Nasal mask for a ventilator and ventilator

By improving the location of the curved air outlet and the design of the guide shaft in the nasal mask of the ventilator, the discomfort caused by the unreasonable airflow distribution of the existing nasal mask has been solved, achieving precise airflow delivery and improved comfort, thus ensuring the treatment effect.

CN224441869UActive Publication Date: 2026-07-03COFOE MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
COFOE MEDICAL TECH CO LTD
Filing Date
2025-07-01
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The airflow distribution design of existing ventilator nasal masks is unreasonable, causing the nose area to be directly impacted by airflow, resulting in discomfort and affecting the comfort of use and treatment effect.

Method used

By lowering the airflow outlet of the curved tube and designing a guide shaft, the airflow is concentrated on a suitable area around the nasal cavity, avoiding the tip of the nose. The directional insertion design of the guide shaft and the cover ensures that the airflow direction is accurately matched to the nasal cavity inlet.

Benefits of technology

It reduces discomfort in the nasal area, improves wearing comfort and treatment effectiveness, ensures efficient airflow into the respiratory tract, and enhances user tolerance and the adoption rate of ventilators.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224441869U_ABST
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Abstract

This utility model relates to the field of medical device technology and discloses a nasal mask for a ventilator, comprising a facial pad, a mask body, and a curved tube arranged sequentially. The first end of the curved tube is configured as a guide shaft, and the curved tube is assembled into the mask body through the guide shaft, so that the central axis b of the guide shaft is arranged towards the facial pad and towards the area between the vermilion border of the upper lip and the nostrils. Based on in-depth research on airflow distribution patterns and user facial structure, the position of the airflow outlet of the curved tube is lowered, changing the airflow direction and range while keeping other conditions unchanged. The improved curved tube can greatly reduce the airflow delivered to the face from covering the tip of the nose and distribute it in a suitable area around the nasal cavity, which can not only meet the user's breathing needs and ensure that the airflow can smoothly enter the nasal cavity, but also avoid the uncomfortable impact of the airflow on the skin of the tip of the nose; thus solving the technical problem of discomfort caused by the use of existing nasal masks for ventilators.
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