Title:
METHOD FOR SEPARATELY DISPOSING EXHALED AIR AND INHALED AIR, AND RESPIRATORY BRANCH CHANNELS
Document Type and Number:
WIPO Patent Application WO/2022/143600
Kind Code:
A1
Abstract:
A method for separately disposing exhaled air and inhaled air, relating to the technical field of masks. The method comprises the following steps: respiration is divided into an exhaling channel and an inhaling channel by using power and energy of a human respiratory system; when the human respiratory system exhales, exhaled air is exhausted by means of the exhaling channel; and when the human respiratory system inhales, air is inhaled by means of the inhaling channel. According to the method, exhaled carbon dioxide is prevented from being retained in the space between a mask body and a human face; due to rapid exhausting of exhaled air, the air pressure between the space of the human face and the mask body is low, and during inhaling, air outside the mask body can rapidly enter after being filtered, so that enough air amount is guaranteed during inhaling, the feeling of insufficient air inhaling is avoided, and an effective guarantee is provided for the safety and the health of the human body.
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| WO/2020/002898 | DEMAND REGULATOR |
Inventors:
LI MINGZHONG (CN)
Application Number:
PCT/CN2021/141875
Publication Date:
July 07, 2022
Filing Date:
December 28, 2021
Export Citation:
Assignee:
SHANGHAI RUIZHENG ENVIRONMENTAL PROTECTION TECH DEVELOPMENT CO LTD (CN)
International Classes:
A62B9/02
Domestic Patent References:
| WO2016186249A1 | 2016-11-24 |
Foreign References:
| CN211301824U | 2020-08-21 | |||
| CN204364711U | 2015-06-03 | |||
| CN111111038A | 2020-05-08 | |||
| CN213466558U | 2021-06-18 | |||
| CN212997872U | 2021-04-20 | |||
| CN111821597A | 2020-10-27 | |||
| KR20180064911A | 2018-06-15 | |||
| CN107048537A | 2017-08-18 | |||
| US4886056A | 1989-12-12 |
Attorney, Agent or Firm:
CHENGDU DINGFENG PATENT AGENCY (GENERAL PARTNER) (CN)
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