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It is understood that the instrument can continuously measure the pH value in the stomach and esophagus for 24 hours, and is recorded and stored by the microprocessor through analog-to-digital conversion, and then analyzed and processed by computer system to print various statistical tables, histograms, trend graphs, etc. Based on the clinical diagnosis, the objectification and quantification of long-term continuous measurement of pH value in the body are realized.
The instrument has been developed to provide effective clinical diagnosis and clinical and pathological and physiological research on difficult diseases such as reflux respiratory disease and non-cardiac chest pain and throat diseases caused by gastric and esophageal reflux disease. Tools and means. In particular, it provides a reliable objective diagnosis basis for patients with "stomach and esophageal reflux symptoms, and under the endoscope, the esophageal mucosa is normal".
It is reported that the application of the instrument is recognized by the international community as the preferred method for the diagnosis of gastroesophageal reflux disease (GERD). At present, the instrument has passed the clinical tests of the third affiliated hospitals of Peking University Medical College, Beijing Children's Hospital, Beijing Chaoyang Hospital, and the experts of the Chinese Medical Association digestive diseases and Other authoritative departments, and reached the level of similar imported instruments, filling the level. Domestic gaps in this field.
The domestic digestive tract pH dynamic tester was successfully developed.
According to reports, the first domestic HYW type upper digestive tract pH dynamic tester with independent intellectual property rights for gastric and esophageal reflux disease was launched in Beijing by Changan (Group) Henderson Electronics Co., Ltd. 8 years.