CN206167417U - Prevent nasogastric tube that flows backwards - Google Patents

Abstract

The utility model discloses an anti-backflow nasal feeding tube, which comprises an upper connecting tube, a lower connecting tube and a gastric tube. The upper end cooperates to form a detachable sealed connection, and the lower end of the lower connecting tube cooperates with the opening of the gastric tube to form a detachable sealed connection. The lower connecting tube is provided with a filter device, which is a filter screen, and the filter screen is connected to the inner peripheral wall of the lower connecting tube. An interference fit is formed; the gastric tube at the lower end of the lower connecting tube is provided with an anti-reflux device, the anti-reflux device includes an expansion part, and left and right wedge-shaped blocks are symmetrically arranged on the left and right sides of the expansion part; the utility model effectively prevents The blockage of the gastric tube can facilitate the insertion of the tube body into the esophagus and reduce the damage to the patient's esophagus. The anti-reflux device cooperates with the one-way valve at the end of the gastric tube to prevent reflux. It has a simple structure and strong practicability.

Description

Anti-backflow nasal feeding tube

technical field

The utility model relates to a nasal feeding tube, in particular to an anti-backflow nasal feeding tube.

Background technique

Enteral nutrition is to provide nutritional support for nutrients needed for metabolism and other nutrients through the gastrointestinal tract, which depends on the length of time, mental state and gastrointestinal function. Enteral nutrition has two methods: oral administration and transcatheter infusion. , the way of feeding through the catheter is mainly to rely on the nasal feeding tube to deliver the nutrient solution to the patient. In the intensive care unit, many critically ill patients are unable to eat independently, so the nasal feeding tube is inserted into the stomach through the nasal cavity for nutritional supplementation or drug administration. Nasogastric feeding, that is, nasal feeding The method is to send the nasal feeding tube to the patient's stomach through the nasal cavity, and feed food into the patient's stomach through the nasal feeding tube. It is usually used for patients who are comatose or unable to eat by themselves. Since the nasal feeding tube can last for 1-3 months, Long-term indwelling will inevitably lead to blockage of the nasal feeding tube. In addition, due to the high pressure in the gastrointestinal tract, gastric contents will flow back along the nasal feeding tube, and the reflux will aggravate the blockage of the nasal feeding tube.

Utility model content

The purpose of this utility model is to provide an anti-backflow nasal feeding tube to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

An anti-backflow nasal feeding tube, comprising an upper connecting tube, a lower connecting tube and a gastric tube, the upper end of the upper connecting tube is provided with an opening for matching with a syringe, and the lower end of the upper connecting tube cooperates with the upper end of the lower connecting tube to form a detachable The lower end of the lower connecting tube cooperates with the opening of the stomach tube to form a detachable sealed connection, the lower connecting tube is provided with a filtering device, the filtering device is a filter screen, and the filter screen forms an interference fit with the inner peripheral wall of the lower connecting tube; The gastric tube at the lower end of the lower connecting tube is provided with an anti-reflux device, the anti-reflux device includes an expansion part, and the left and right wedges are symmetrically arranged on the left and right sides of the expansion part; the end of the gastric tube is provided with an anti-nutrition A one-way valve for fluid and drug backflow.

Further, the outer surface of the gastric tube is coated with a water-activated lubricating layer.

Further, the left wedge and the right wedge are made of medical-grade elastic silicone material.

Compared with the prior art, the lower connecting tube of the utility model is provided with a filtering device, and the liquid food in the syringe must first pass through the filter before entering the tube body, thereby effectively preventing the blockage of the gastric tube; the outer surface of the gastric tube is coated with Covered with a layer of water-activated lubricating layer, it can facilitate the insertion of the tube body into the esophagus and reduce the damage to the patient's esophagus; when the liquid diet is injected through the syringe, the left and right wedges will bend downward due to the extrusion of the liquid diet on the syringe, The food can enter the patient's stomach through the expansion part, and after the liquid diet is injected, under the action of the elastic retraction force of the silicone material of the left wedge and the right wedge, the tips of the two wedges are closed, so as to achieve partial food prevention. The function of regurgitation and the one-way valve at the end of the gastric tube can prevent regurgitation. The structure is simple and the practicability is strong.

Description of drawings

Figure 1 is a schematic diagram of the structure of an anti-backflow nasal feeding tube.

detailed description

The technical solution of this patent will be described in further detail below in conjunction with specific embodiments.

Please refer to Fig. 1, a kind of anti-backflow nasal feeding tube, comprises upper connecting tube 1, lower connecting tube 2 and gastric tube 3, the upper end of described upper connecting tube 1 is provided with the opening 11 that is used to cooperate with syringe, the upper connecting tube 1 The lower end cooperates with the upper end of the lower connecting tube 2 to form a detachable sealed connection, and the lower end of the lower connecting tube 2 cooperates with the opening of the stomach tube 3 to form a detachable sealed connection. The lower connecting tube 2 is provided with a filter device 4, and the filter device 4 It is a filter screen, which forms an interference fit with the inner peripheral wall of the lower connecting tube 2, and the liquid food in the syringe will first pass through the filter before entering the tube body, thereby effectively preventing the blockage of the gastric tube 3; The surface is coated with a layer of water-activated lubricating layer, which can facilitate the insertion of the tube body into the esophagus and reduce the damage to the patient's esophagus; the gastric tube 3 at the lower end of the lower connecting tube 2 is provided with an anti-reflux device 5, and the anti-reflux device 5 includes an expansion part 51. A left wedge 52 and a right wedge 53 are arranged symmetrically on the left and right sides of the expansion part 51, and both the left wedge 52 and the right wedge 53 are medical-grade elastic silicone materials; The one-way valve 31 for fluid and medicine backflow, when the liquid diet is injected through the syringe, the left wedge-shaped piece 52 and the right wedge-shaped piece 53 are bent downward due to the extrusion of the liquid diet in the syringe, and the food can enter the patient's stomach through the expansion part After injecting the liquid diet, under the action of the elastic retraction force of the silicone material of the left wedge-shaped block 52 and the right wedge-shaped block 53, the tips of the two wedge-shaped blocks are closed, so as to partially prevent food from regurgitating, and at the same time cooperate with the stomach The one-way valve 31 at the end of the tube 3 together serves to prevent backflow.

The preferred implementation of this patent has been described in detail above, but this patent is not limited to the above-mentioned implementation. Within the scope of knowledge of those of ordinary skill in the art, various implementations can be made without departing from the purpose of this patent. kind of change.

Claims (3)

1. a kind of anti-backflow nasogastric tube, including upper connecting tube, lower connecting tube and stomach tube, it is characterised in that the upper connecting tube Upper end is provided with the opening for coordinating with syringe, and the lower end of upper connecting tube cooperatively forms detachably with the upper end of lower connecting tube Be tightly connected, the lower lower end of connecting tube cooperatively forms with the opening of stomach tube and is removably tightly connected, and arranges in lower connecting tube There is filter, filter is screen pack, and screen pack forms interference fit with the internal perisporium of lower connecting tube；The lower connecting tube The stomach tube of lower end is provided with anti-backflow device, and anti-backflow device includes bulge, and the left and right sides of bulge is arranged with left wedge Shape block and right wedge；The end of the stomach tube is provided with the one-way valve for preventing that nutrient solution and medicine from flowing backwards.

2. anti-backflow nasogastric tube according to claim 1, it is characterised in that the outer surface of the stomach tube is coated with one layer of water Active lubricating layer.

3. anti-backflow nasogastric tube according to claim 1, it is characterised in that the left wedge and right wedge are doctor With level elastic silica gel material.