Nasointestinal tube

Abstract

The invention discloses a nasointestinal tube and belongs to the field of medical equipment. A bag is sealed at the top of the front end of a nasointestinal tube in the prior art. In the intubation process, the bag turns back to increase push resistance, the gastrointestinal mucosa is damaged easily, and the time for a catheter to enter intestines cannot be controlled actively, so that a curative effect is delayed. The nasointestinal tube comprises a catheter for being inserted into the stomach and intestine, the top of the front end of the catheter is provided with a metal body having a certain rigidity, the metal body is in a streamline shape, the outside of the metal body is covered with a layer of flexible film having a certain elasticity, and the metal body is made of a material capable of sensing a magnetic field. The metal body is in the streamline shape, metal has rigidity and is not bent easily, and the streamline shape reduces push resistance; the outside of the metal body is covered with the layer of flexible film, the surface is soft, so that when the catheter is pushed to move forwards, the front end of the catheter has a certain elasticity while having a certain rigidity, and the gastrointestinal mucosa is not damaged easily. The magnetic field and a guiding wire are utilized to drive the catheter to move, so that the moving process is smoother and quicker.

Description

technical field [0001] The invention relates to a nasogastric tube, which belongs to the field of medical instruments. Background technique [0002] Fluid and gas in the gastrointestinal tract often occur due to illness, or you cannot eat orally due to illness, you need to insert a catheter into the gastrointestinal tract to suck out the accumulated liquid and gas in the gastrointestinal tract, or inject drugs, nutrient solutions, etc. Gastrointestinal infusion is a safe, simple and effective treatment. The traditional method is to use a nasogastric tube, but the tube can only be inserted into the gastric cavity, which has little effect, and there is a risk of returning to the esophagus, so that aspiration can lead to serious consequences of suffocation. Therefore, how to quickly and easily send a catheter into the intestine without damage has always been a hot spot in medical research, and various catheters have emerged in an endless stream. The notification number CN1530...

AI Technical Summary

Problems solved by technology

However, in the process of using this invention patent, there are the following defects: 1. Since the top of the front end of the catheter is sealed with a sac, during the intubation process, the sac turns back to increase the resistance of pushing, and it is easy to damage the gastrointestinal mucosa

2. The front end of the catheter is not rigid, and it is easy to fold back to the fundus of the stomach when encountering resistance

3. Since the catheter enters the intestine through the stomach, it needs the peristalsis of the gastrointestinal tract to be effective, and the patient's gastrointestinal peristalsis function is often low, and the time when the catheter enters the intestine cannot be activel

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