device for the investigation of helicobacter pylori infection

摘要

There are described a simple examination method of infection with Helicobacter pylori possibly presenting in a gastric mucosa, and a device therefor. The examination is conducted by collecting gas in the gastric cavity, and measuring mainly ammonia and additionally organic amines which are generated due to the activity of the bacilli. The measurement is carried out by leading the gas in the gastric cavity into the oral cavity by a vomiting-reflex, and sucking the gas by a metering suction pump through a gas detection tube to read-out a length of color-changed area in the gas detection tube.