Anti-falling inner and outer double-channel drainage nasobiliary duct

The utility model discloses an anti-falling inner and outer dual-channel drainage nasobiliary duct, which comprises an outer drainage tube for draining bile out of a body and an inner drainage tube for draining bile into duodenum, and the inner drainage tube is sleeved outside the outer drainage tube; the front portion of the outer drainage tube penetrates out of the inner drainage tube, and a drainage hole is formed in the penetrating-out tube section. A drainage channel is formed between the inner drainage tube and the outer drainage tube, a bile inlet is formed in the front portion of the inner drainage tube, and a bile outlet is formed in the rear portion of the inner drainage tube. According to the anti-falling inner and outer dual-channel drainage nasobiliary duct, bile can be drained out of a body through the outer drainage tube, and part of bile can be drained to the duodenum through the inner drainage tube, so that bile loss of a patient can be reduced, and the technical problems of electrolyte disor