The domestic digestive tract pH dynamic tester was successfully developed.

In a significant development, Changan (Group) Henderson Electronics Co., Ltd. in Beijing has introduced the first domestically produced HYW-type upper gastrointestinal pH dynamic monitoring system with independent intellectual property rights, specifically designed for diagnosing and managing gastric and esophageal reflux diseases. This innovation marks an important milestone in China's medical technology sector, having been developed over the past eight years. The device is capable of continuously measuring pH levels in both the stomach and esophagus for 24 hours. It uses analog-to-digital conversion to record and store data via a microprocessor, which is then analyzed and processed by a computer system. The system generates detailed statistical reports, histograms, and trend graphs, enabling objective and quantitative analysis of long-term pH fluctuations in the body. This advancement greatly enhances clinical diagnosis and supports more accurate assessments of patients' conditions. This instrument serves as a valuable tool for diagnosing and researching complex conditions such as reflux-related respiratory diseases, non-cardiac chest pain, and throat disorders caused by gastroesophageal reflux disease (GERD). It provides a reliable, objective basis for patients who experience symptoms of reflux but show normal esophageal mucosa under endoscopy, helping to improve diagnostic accuracy and treatment outcomes. Internationally, the technology has gained recognition as the preferred method for diagnosing GERD. The device has already undergone clinical validation at prestigious institutions, including the Third Affiliated Hospital of Peking University Medical College, Beijing Children’s Hospital, Beijing Chaoyang Hospital, and has received positive evaluations from experts within the Chinese Medical Association’s digestive diseases department. It has reached a level comparable to imported devices, effectively filling a critical gap in domestic medical equipment for this specific application.

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