Title:
BREATHING EQUIPMENT AND OXYGEN CONCENTRATION DETECTION MECHANISM THEREOF
Document Type and Number:
WIPO Patent Application WO/2016/086445
Kind Code:
A1
Abstract:
Disclosed are breathing equipment (10) and an oxygen concentration detection mechanism thereof. The above-mentioned oxygen concentration detection mechanism is used for detecting the oxygen concentration of gas output from a main device. The oxygen concentration detection mechanism comprises a gating switch (220), a volume cavity body (240), a switch valve (260) and a oxygen sensor (280). Two gas inlets (222) of the gating switch (220) are respectively in communication with an oxygen channel (140) and an air channel (160). The volume cavity body (240) is in communication with an air outlet (224), the external atmosphere, and a gas mixture channel (180). The switch valve (260) is located between the volume cavity body (240) and the gas mixture channel (180), and between the air outlet (224) and the volume cavity body (240). The oxygen sensor (280) is connected to the volume cavity body (240). The oxygen sensor (280) is used for detecting the oxygen concentration of a gas inside the volume cavity body (240). The oxygen concentration detection mechanism is parallel on the main device. Oxygen or air is introduced into the volume cavity body (240) by the gating switch (220), and then the oxygen sensor (280) is calibrated. The calibration process can be performed when the main device is normally working, and improves the accuracy of the oxygen sensor (280).
Inventors:
LI ZENG (CN)
SHEN LIANGGANG (CN)
TAN HENG (CN)
SHEN LIANGGANG (CN)
TAN HENG (CN)
Application Number:
PCT/CN2014/093662
Publication Date:
June 09, 2016
Filing Date:
December 12, 2014
Export Citation:
Assignee:
SHENZHEN COMEN MEDICAL INSTR (CN)
International Classes:
A61M16/01; A61M16/20
Domestic Patent References:
| WO2007064986A2 | 2007-06-07 |
Foreign References:
| US20060096591A1 | 2006-05-11 | |||
| CN203324223U | 2013-12-04 | |||
| CN102500026A | 2012-06-20 | |||
| CN102580213A | 2012-07-18 | |||
| CN101468221A | 2009-07-01 | |||
| JP2008136664A | 2008-06-19 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
广州华进联合专利商标代理有限公司 (CN)
广州华进联合专利商标代理有限公司 (CN)
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