Apparatuses and methods for detecting gas contamination

摘要

In one embodiment, a gas contamination detection apparatus includes a gas analyzer adapted to receive a sample of a gas to be delivered to a patient and to analyze the gas sample to determine whether the gas contains a contaminant, and a gas shut-off valve adapted to automatically prevent the gas from being delivered to the patient if the gas is determined to contain a contaminant.

主权项

1. A gas contamination detection apparatus comprising:
a gas analyzer configured to receive a sample of a gas to be delivered to a patient and to analyze the sample of the gas to determine whether the gas contains a contaminant, the gas analyzer comprising: a chamber configured to receive the sample of the gas; a pulse generator configured to generate an electric arc within the chamber that ionizes the sample of the gas to generate a plasma discharge; an optical spectrometer that detects an emission spectrum of the plasma discharge; a central controller that analyzes the detected emission spectrum and determines whether the gas contains the contaminant; and a gas shut-off valve configured to automatically prevent the gas from being delivered to the patient if the sample of the gas is determined to contain the contaminant; and wherein the central controller is configured to automatically open the gas shut-off valve if the gas is confirmed to be free of contaminants.