Oxygen-capnography mask for continuous co2 monitoring

Abstract

A face mask for delivering oxygen to, and sampling carbon dioxide exhaled from, a subject includes a partition wall that divides the mask into a subject respiratory space that primarily contains carbon dioxide exhaled by the subject, and an oxygen reservoir space that primarily contain oxygen. The partition wall includes one or two holes to which naris conduits are respectively connected. The naris conduit are positioned in proximity to the subject's nares to closely obtain carbon dioxide samples. The naris conduits enable oxygen to flow from the oxygen reservoir space to the subject respiratory space during inhalation, while quickly expelling traces of CO2, and they are configured such that exhaled CO2 quickly fills them up, during exhalation, while expelling oxygen traces back to the oxygen reservoir space.

Description

[0001] Cross References to Related Applications [0002] This application, which is a non-provisional application, is called for on 10 August 2016 and is entitled "OXYGEN-CAPNOGRAPHYMASK FOR CONTINUOUS CO2MONITORING (for continuous CO2MONITORING 2 Monitored Oxygen-Carbon Dioxide Mask)" is the priority of U.S. Provisional Patent Application No. 62 / 373,170, the entire contents of which are incorporated herein for all purposes. technical field [0003] The present disclosure relates to masks for delivering oxygen to a patient and monitoring exhaled gas (eg, carbon dioxide) from the patient, and more particularly, to masks that prevent dilution of the exhaled gas by the delivered gas, and vice versa. Background technique [0004] This section is intended to introduce the reader to various aspects of art that may be related to various aspects of the inventive technology that are described and / or claimed below. It is believed that this discussion helps to provide the reader with ...

AI Technical Summary

Problems solved by technology

Another disadvantage of traditional masks is that the carbon dioxide sampling port is far away from the subject's nose and mouth, due to, for example, exhaled CO 2 flow dispersion pattern, which may also adversely affect the CO2 concentration measurement

Another disadvantage of conventional masks is that the CO2 sampling port must remain in the same position relative to the subject's nose and mouth in order to have a reliable CO2 2 concentration measurement

) However, the mask 200 does not really solve the above problems, because the mask 200 has similar problems to the mask 100, because the CO 2 The sampling port 260 is kept away from the patient's mouth and nose

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