Breath sampling device for lung cancer diagnosis

Abstract

The invention discloses a breath sampling device for lung cancer diagnosis. The breath sampling device comprises a gas cavity, wherein an exhaling head is fixed to one end of the gas cavity, and the exhaling head communicates with the internal part of the gas cavity; one end, away from the exhaling head, of the gas cavity is connected with an input end of a breath analyzing instrument through a gas duct; and a monitoring mechanism is fixed to the top of the gas cavity, and comprises connecting device, a detecting box, a gas pressure balancing device, an exhausting device, a gas pressure detecting device and an indicating device, wherein the detecting box is located directly over the gas cavity, besides, the bottom of the detecting box is fixed to the gas cavity through the connecting device, the gas pressure balancing device is fixed to the top of the detecting box, and the exhausting device is fixed to the gas cavity. According to the breath sampling device for lung cancer diagnosis disclosed by the invention, through the monitoring mechanism, the pressure intensity of gas exhaled from a patient can be detected, so that the size of the quantity of the gas exhaled from the patientcan be judged, the patient can be reminded to exhale an appropriate amount of gas, and the accuracy of lung cancer diagnosis can be increased.

Description

technical field [0001] The invention relates to the technical field of lung cancer diagnosis, in particular to a breath sampling device for lung cancer diagnosis. Background technique [0002] A large number of studies have shown that there are some volatile organic compounds in the exhaled breath of patients with lung cancer. These compounds are derived from the oxidation of unsaturated fatty acids in the process of cancer, so they can be used as biomarkers to identify cancer. [0003] Doctors often use gas detection and analysis instruments to detect the breath exhaled by patients, so as to diagnose lung cancer. To the air intake chamber of the gas detection and analysis instrument, when the patient takes a breath test, when the exhaled gas volume is large or small, the accuracy of the detection data will be reduced, so that there is a certain error in the diagnosis of lung cancer. The existing The instrument does not have the function of monitoring the respiratory airflo...

AI Technical Summary

Problems solved by technology

[0003] Doctors often use gas detection and analysis instruments to detect the breath exhaled by patients, so as to diagnose lung cancer. To the air intake chamber of the gas detection and analysis instrument, when the patient takes a breath test, when the exhaled gas volume is large or small, the accuracy of the detection data will be reduced, so that there is a certain error in the diagnosis of lung cancer. The existing The instrument does not have the function of monitoring the respiratory airflow, and the patient can only blow air by feeling

Images