Percutaneous endoscopic gastrostomy (PEG) has been in clinical use since 1980, providing a safe, effective, non-surgical way to establish long-term enteral nutrition access, and is now widely used in clinical practice abroad. It has been widely used overseas. Approximately 200,000 patients in the United States undergo this technique each year. The clinical application of this technology in China is not yet widespread. This technique is suitable for people with normal gastrointestinal function, but who have difficulty eating through the mouth for various reasons and need long-term nutrition supporters, such as: 1. long-term loss of swallowing function due to various neurological diseases (such as inflammation, degeneration, tumor-induced pharyngeal muscle paralysis, cerebrovascular accident, trauma, tumor or post-cranial surgery unconsciousness) who cannot be fed nutrition through the mouth or nasally, swallowing difficulties due to various myopathies (such as severe Myasthenia gravis, systemic sclerosis) and anorexia nervosa who cannot eat at all. 2.Severe malnutrition caused by systemic diseases, requiring nutritional support, but cannot tolerate surgical stoma. 3, oral, facial, pharyngeal and laryngeal surgery, requiring a longer period of nutritional support. 4.Eating difficulties caused by trauma or tumor. 5, esophageal perforation, esophageal tracheal fistula or various benign and malignant tumors caused by esophageal obstruction. 6.Severe extra-biliary fistulas, which require bile to be diverted back to the gastrointestinal tract to aid digestion.