Nasal gastrointestinal tube guided by endoscope

Abstract

The invention discloses a nasal gastrointestinal tube guided by an endoscope, and belongs to the technical field of medical instruments. The nasal gastrointestinal tube comprises a guide wire, a gastric tube, a jejunal tube, a jejunal tube movable joint and a gastric tube joint. The nasal gastrointestinal tube adopts a tube-in-tube connection mode, the guide wire is placed in the jejunum through an instrument channel at first, then the near end of the wire is inserted into a tail-end soft head opening of the jejunal tube, and the nasal gastrointestinal tube is placed in the stomach or the jejunum under the guide of the guide wire; the combination of the gastric tube and the jejunal tube is not fixed, when one tube is drawn out, the other tube can be reserved, if the jejunal tube is not needed, the jejunal tube can be completely drawn out, when there is no need to carry out gastric tube decompression, the gastric tube can be drawn out, and the jejunal tube is reserved. Under the condition of the same outer diameter, a cavity body is larger than a tube cavity of an existing gastrointestinal nutrition tube, the situation of tube blockage caused when the cavity is too small is avoided, the cost of medical instruments is reduced, the clinical use is safer and more convenient, the pain of patients is reduced, and the nasal gastrointestinal tube has great significance on improving the curative effect.

Description

technical field [0001] The invention relates to a nasogastric and intestinal tube guided by an endoscope, belonging to the technical field of medical instruments. Background technique [0002] Nowadays, three-chamber feeding tubes are often used in general surgery involving the gastrointestinal tract, which can simultaneously perform gastric decompression and feeding of the small intestine. This tube can be used for all patients with gastrointestinal function and gastric motility damage. It is used in patients after gastrointestinal surgery, such as esophageal surgery, gastric surgery, etc. When using a three-lumen feeding tube, a three-lumen gastric tube is inserted through a guide wire and then enters the stomach through the nasal cavity. Compression and enteral feeding, placement is very complicated. And in use, because the three-chamber feeding tube is designed as a three-chamber structure in the gastric tube cavity, since a catheter needs to be divided into three-cham...

AI Technical Summary

Problems solved by technology

When using a three-lumen feeding tube, a three-lumen gastric tube is inserted through a guide wire and then enters the stomach through the nasal cavity. Compression and enteral feeding, very complex placement

And in use, because the three-chamber feeding tube is designed as a three-chamber structure in the gastric tube cavity, since a catheter needs to be divided into three-chamber structures, it must pass through the partition in the cavity, and the partitions of the separated cavities need certain walls. It is thicker, which makes the three-lumen feeding tube harder than the single-lumen gastric tube under the same outer diameter conditions, and the patients will obviously feel uncomfortable during use, which makes them unwilling to use and difficult to promote

After the cavity is designed with three cavities, each cavity becomes significantly smaller after the cavity is divided into three. Cavity blockage is a common problem in the process of drainage, flushing or delivery of nutrient solution, and even cannot be dredged by flushing, resulting in reintubation

Moreover, the existing jejunal nutrition tube is connected to the stomach tube through a connector, and the firmness of the connector cannot be guaranteed under the conditions in the gastrointestinal tract, which can easily cause the enteral nutrition tube to fall off, causing secondary injury to the patient.

Images