Gastrointestinal power-related diseases, including gastroesophageal reflux disease, esophageal spasm, constipation, etc., are a group of common conditions of the digestive system, which can cause digestive symptoms such as acid reflux, heartburn, erratic reflux, dysphagia, blockage and distension, and difficulty in defecation, in addition to other system symptoms such as cough, sputum, chest pain, and may induce chronic pharyngitis, sinusitis, bronchial asthma and many other diseases involving other systems, involving Respiratory medicine, cardiovascular medicine, rheumatology, general surgery, anorectology, otorhinolaryngology and other departments. The clinical diagnosis is often a lot of trouble, causing great distress to patients and a great waste of medical resources. The newly introduced American SSI solid-state high-resolution gastrointestinal dynamics examination system has the advantages of convenient examination, intuitive, comprehensive and accurate data acquisition, and good patient tolerance, which greatly improves the diagnosis and examination level of various gastrointestinal dynamics disorders and functional diseases. The content of this examination system includes: 1. High-resolution esophageal manometry: It can evaluate the peristaltic movement and the function of upper and lower sphincter in all parts of esophagus; it can be used for the diagnosis of gastroesophageal reflux disease, cardia loss retardation, diffuse esophageal spasm, nutcracker esophagus, esophageal hiatal hernia, scleroderma esophagus and other dynamic diseases, and can evaluate the efficacy after treatment such as medicine or surgery. It can also be used for esophagogastric motility assessment after surgical treatment such as fundoplication, gastric decompensation and gastrointestinal diversion. 2. 24-hour PH-impedance monitoring: combined pH and impedance monitoring is currently the most advanced means internationally regarding gastroesophageal reflux, which can monitor reflux throughout the day, detect reflux of various acidity and alkalinity (acid reflux, weak acid reflux, non-acid reflux), and clarify the nature of the reflux (gas, liquid or mixed type) and its height reached in the esophagus; it helps in the diagnosis and treatment of gastroesophageal reflux-related diseases It helps in the diagnosis and treatment of GERD-related diseases. This test is especially suitable for patients with GERD with extraesophageal symptoms or no esophageal inflammation on endoscopy, functional heartburn, diagnosed GERD, but the treatment with proton pump inhibitors is ineffective or recurrent. 3.High-resolution anorectal manometry: evaluate the rectal and anal function during defecation, which can be used for the diagnosis and evaluation of various diseases such as chronic constipation, fecal incontinence, pelvic floor dysfunction, congenital megacolon, etc. The functional status of the anal sphincter after various anal surgeries can be evaluated. 4.Biofeedback technology: For patients diagnosed with defecation disorders caused by anorectal dysfunction, feedback can be given by video cartoon images and audio instructions to guide patients to carry out coordinated movements of the rectum and anal sphincter, effectively improving defecation disorders and improving patients’ quality of life. 5. High-definition anal 3D manometry: High-definition 3D images can image the pressure of the anal sphincter in all directions to clearly observe the state of the anal sphincter, providing an intuitive preoperative assessment for anorectal surgery and helping to guide the operation.