Anti-reflux device of stomach tube

Abstract

The anti-reflux device comprises a stomach tube body, the stomach tube body is sleeved with an annular flushing channel, the lower end of the flushing channel is sequentially provided with a cut-off cavity and a flushing cavity, the upper end and the lower end of the cut-off cavity are each provided with a plurality of through holes, and the through holes in the upper end of the cut-off cavity are communicated with the flushing channel; the elastic rubber layer is supported by the aid of water pressure of flushing fluid, so that the elastic rubber layer deforms and bulges to be attached to the esophageal wall of a patient, and reflux of food residues or gastric juice is avoided; after feeding, the flushing channel, the cut-off cavity and the flushing cavity are used for flushing, so that the probability of reflux is reduced, and the occurrence of pneumonia is reduced; when the stomach tube is taken out, the flushing fluid in the cut-off cavity enters the flushing channel from the channel to be pumped out, and along with reduction of the flushing fluid in the cut-off cavity, the elastic rubber layer restores to be separated from the esophagus side of the patient, and taking-out is convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an anti-reflux device for a gastric tube. Background Art

[0002] When people eat, the pylorus opens. After the food passes through the pylorus, the pylorus closes and the cardia opens. After the food enters the stomach, the cardia closes, and the eating process is completed in this cycle. For bedridden patients who cannot eat normally, a gastric tube needs to be placed. The gastric tube passes through the pylorus and cardia in turn and enters the stomach. However, since the pylorus and cardia are closed under normal circumstances, food, gastric juice, etc. may reflux. However, after the gastric tube is placed, the pylorus and cardia are always open, and food or gastric juice may reflux from the pylorus and cardia, and enter the human lungs, causing lung infection. Clinically, this is also the reason why bedridden patients with gastric tubes have repeated lung infections.

[0003] Therefore, it is necessary to prevent the reflux of food and gastric juice. The Chinese patent with application number 202110693325.2 discloses an anti-reflux gastric tube, which uses an expansion member to expand the blocking component. The expanded blocking component fits the esophageal arm of the human body to prevent the reflux of food or gastric juice, thereby avoiding the problem of repeated lung infections in patients. However, after the blocking component is expanded, it is inconvenient to retract the gastric tube, and the gastric tube is easy to scratch the stomach wall when it moves. Summary of the invention

[0004] In view of this, an object of the present invention is to provide an anti-reflux device for a gastric tube to solve the above-mentioned problem.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a reflux prevention device for a gastric tube, comprising a gastric tube body, a ring-shaped flushing channel is sleeved on the gastric tube body, a truncation cavity and a flushing cavity are sequentially arranged at the lower end of the flushing channel, and a plurality of through holes are distributed at the upper and lower ends of the truncation cavity, wherein the through holes at the upper end of the truncation cavity are connected to the flushing channel, and the through holes at the lower end of the truncation cavity are connected to the flushing cavity.

[0006] A first push-pull plate is slidably connected in the truncation cavity, and first plugs are evenly distributed on the upper side of the first push-pull plate, the first plugs correspond one-to-one to the through holes at the upper end of the truncation cavity, and a first spring and a second spring are arranged in the truncation cavity, wherein the first spring is located on the upper side of the first push-pull plate, and the second spring is located on the lower side of the first push-pull plate, wherein the lower end of the first spring is fixedly connected to the upper side of the first push-pull plate, the upper end of the first spring is fixedly connected to the upper end of the truncation cavity, the upper end of the second spring is fixedly connected to the lower side of the first push-pull plate, and the lower end of the second spring is fixedly connected to the lower end of the truncation cavity.

[0007] A plurality of flushing ports are evenly distributed on the outer wall of the flushing cavity, and a second push-pull plate is slidably connected in the flushing cavity, second plugs are evenly distributed on the upper side of the second push-pull plate, the upper end of the second plug is a spherical structure and the lower end is a columnar structure, which is convenient for sealing and cutting off the through hole at the lower end of the cavity, and a third spring is arranged on the lower side of the second push-pull plate, the upper end of the third spring is fixedly connected to the second push-pull plate, and the lower end of the third spring is fixedly connected to the lower end of the flushing cavity.

[0008] Preferably, the first plug is a columnar structure, and the cross-sectional diameter of the first plug is equal to the diameter of the through hole at the upper end of the truncated cavity, so as to facilitate sealing the through hole at the upper end of the truncated cavity, and a channel is arranged inside the first plug, and the side walls of the first plug near the upper end and the lower end are provided with through holes connected to the channel.

[0009] Preferably, the outer side wall of the cut-off cavity is made of an elastic rubber layer, and the thickness of the elastic rubber layer is thinner than the side wall of the stomach tube body, so that the elastic rubber layer can be deformed when the pressure in the cut-off cavity increases.

[0010] The beneficial effects of the present invention are as follows: the present invention utilizes the water pressure of the flushing liquid to prop up the elastic rubber layer, so that the elastic rubber layer is deformed and bulged to fit the patient's esophageal wall, thereby avoiding the reflux of food residues or gastric juice; after eating, the flushing channel, the cut-off cavity, and the flushing cavity are used for flushing to reduce the chance of reflux, thereby reducing the occurrence of pneumonia; when removing the gastric tube, the flushing liquid in the cut-off cavity enters the flushing channel from the channel and is drawn out, and as the flushing liquid in the cut-off cavity decreases, the elastic rubber layer returns to its original state and is separated from the patient's esophageal side, making it easy to remove. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Diagram of the structure of a gastric tube to prevent reflux Figure 1 ;

[0012] Figure 2 Diagram of the structure of a gastric tube to prevent reflux Figure 2 ;

[0013] Figure 3 Diagram of the structure of a gastric tube to prevent reflux Figure 3 ;

[0014] Figure 4 This is the structural diagram of the first plug.

[0015] Numbers in the figure: 1 gastric tube body; 2 flushing channel; 3 truncation cavity; 301 elastic rubber layer; 4 flushing cavity; 5 first push-pull plate; 6 first plug; 601 channel; 7 first spring; 8 second spring; 9 second push-pull plate; 10 second plug; 11 third spring. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0017] like Figure 1-4 As shown, a reflux prevention device for a gastric tube comprises a gastric tube body 1, on which an annular flushing channel 2 is sleeved, and a truncated cavity 3 and a flushing cavity 4 are sequentially arranged at the lower end of the flushing channel 2, and a plurality of through holes are distributed at both the upper and lower ends of the truncated cavity 3, wherein the through hole at the upper end of the truncated cavity 3 is connected with the flushing channel 2, and the through hole at the lower end of the truncated cavity 3 is connected with the flushing cavity 4.

[0018] In this embodiment, a first push-pull plate 5 is slidably connected in the truncation cavity 3, and a first plug 6 is evenly distributed on the upper side of the first push-pull plate 5, the first plug 6 corresponds one-to-one to the through hole at the upper end of the truncation cavity 3, and a first spring 7 and a second spring 8 are arranged in the truncation cavity 3, wherein the first spring 7 is located on the upper side of the first push-pull plate 5, and the second spring 8 is located on the lower side of the first push-pull plate 5, wherein the lower end of the first spring 7 is fixedly connected to the upper side of the first push-pull plate 5, the upper end of the first spring 7 is fixedly connected to the upper end of the truncation cavity 3, the upper end of the second spring 8 is fixedly connected to the lower side of the first push-pull plate 5, and the lower end of the second spring 8 is fixedly connected to the lower end of the truncation cavity 3.

[0019] In this embodiment, a plurality of flushing ports are evenly distributed on the outer wall of the flushing cavity 4, and a second push-pull plate 9 is slidably connected in the flushing cavity 4, and a second plug 10 is evenly distributed on the upper side of the second push-pull plate 9. The upper end of the second plug 10 is a spherical structure and the lower end is a columnar structure, which is convenient for sealing the through hole at the lower end of the cut-off cavity 3. A third spring 11 is arranged on the lower side of the second push-pull plate 9, and the upper end of the third spring 11 is fixedly connected to the second push-pull plate 9, and the lower end of the third spring 11 is fixedly connected to the lower end of the flushing cavity 4.

[0020] In this embodiment, the first plug 6 is a columnar structure, and the cross-sectional diameter of the first plug 6 is equal to the diameter of the through hole at the upper end of the truncated cavity 3, so as to facilitate sealing the through hole at the upper end of the truncated cavity 3, and a channel 601 is arranged inside the first plug 6, and the side walls of the first plug 6 near the upper end and the lower end are provided with through holes connected to the channel 601.

[0021] In this embodiment, the outer wall of the cut-off cavity 3 is made of an elastic rubber layer 301, and the thickness of the elastic rubber layer 301 is thinner than the side wall of the stomach tube body 1, so that the elastic rubber layer 301 can be deformed when the pressure in the cut-off cavity 3 increases.

[0022] The working process of the present invention is as follows: the stomach tube body 1 of the anti-reflux stomach tube is placed in the patient's body according to conventional operations. Figure 1 As shown, the elastic rubber layer 301 is in a natural state;

[0023] like Figure 2As shown, flushing liquid is provided into the flushing cavity 4 through the flushing channel 2. When the flushing liquid enters the flushing cavity 4 from the flushing channel 2, it passes through the cut-off cavity 3. When the flushing liquid enters the cut-off cavity 3, the water pressure pushes the first plug 6 to slide downward, compressing the second spring 8 and stretching the first spring 7. The first plug 6 is separated from the through hole at the upper end of the cut-off cavity 3, and the flushing liquid enters the cut-off cavity 3. Figure 2 As shown, under the limiting action of the third spring 11, the pressure of the flushing liquid in the cut-off cavity 3 is increased until the flushing liquid pressure pushes the second plug 10 to separate from the through hole at the lower end of the cut-off cavity 3, and then the flushing liquid enters the flushing cavity 4 and is discharged from the flushing port on the side wall of the flushing cavity 4. At this time, the flushing liquid pressure stored in the flushing channel 2 squeezes the elastic rubber layer 301 to deform and bulge, and fits with the patient's esophageal wall to avoid reflux of food residues or gastric juice. After eating, the flushing channel 2, the cut-off cavity 3, and the flushing cavity 4 are used for flushing, which reduces the probability of reflux, thereby reducing the occurrence of pneumonia;

[0024] When the stomach tube body 1 is removed, the flushing liquid in the cut-off cavity 3 is drawn out. Figure 3 As shown, the second plug 10 blocks the through hole at the lower end of the cut-off cavity 3 to prevent food residues or gastric juice from flowing back into the cut-off cavity 3. At the same time, the negative pressure generated when the flushing liquid is extracted pulls the first plug 6 to slide upward, so that the through hole near the upper side wall of the first plug 6 is connected with the flushing channel 2. At this time, the flushing liquid in the cut-off cavity 3 enters the flushing channel 2 from the channel 601 and is extracted. As the flushing liquid in the cut-off cavity 3 decreases, the elastic rubber layer 301 returns to its original state and is separated from the patient's esophagus side for easy removal.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gastric tube anti-reflux device, comprising a gastric tube body, characterized in that: The stomach tube body is provided with an annular flushing channel, and a truncation cavity and a flushing cavity are sequentially arranged at the lower end of the flushing channel, and multiple through holes are distributed at the upper and lower ends of the truncation cavity, wherein the through holes at the upper end of the truncation cavity are connected with the flushing channel, and the through holes at the lower end of the truncation cavity are connected with the flushing cavity; a first push-pull plate is slidably connected in the truncation cavity, and a first plug is evenly distributed on the upper side of the first push-pull plate, and the first plug corresponds one-to-one to the through holes at the upper end of the truncation cavity, and a first spring and a second spring are arranged in the truncation cavity, wherein the first spring is located on the upper side of the first push-pull plate, and the second spring is located on the lower side of the first push-pull plate, wherein the lower end of the first spring is fixedly connected to the upper side of the first push-pull plate, the upper end of the first spring is fixedly connected to the upper end of the truncation cavity, the upper end of the second spring is fixedly connected to the lower side of the first push-pull plate, and the lower end of the second spring is fixedly connected to the lower end of the truncation cavity.

2. The anti-reflux device for a gastric tube according to claim 1 is characterized in that: A plurality of flushing ports are evenly distributed on the outer wall of the flushing cavity, and a second push-pull plate is slidably connected in the flushing cavity, second plugs are evenly distributed on the upper side of the second push-pull plate, the upper end of the second plug is a spherical structure and the lower end is a columnar structure, which is convenient for sealing and cutting off the through hole at the lower end of the cavity, and a third spring is arranged on the lower side of the second push-pull plate, the upper end of the third spring is fixedly connected to the second push-pull plate, and the lower end of the third spring is fixedly connected to the lower end of the flushing cavity.

3. The anti-reflux device for a gastric tube according to claim 1 is characterized in that: The outer side wall of the cut-off cavity is made of an elastic rubber layer, and the thickness of the elastic rubber layer is thinner than the side wall of the stomach tube body, so that when the pressure in the cut-off cavity increases, the elastic rubber layer is deformed.

4. The anti-reflux device for a gastric tube according to claim 1 is characterized in that: The first plug is a columnar structure, and the cross-sectional diameter of the first plug is equal to the diameter of the through hole at the upper end of the truncated cavity, which is convenient for sealing the through hole at the upper end of the truncated cavity. A channel is arranged inside the first plug, and through holes connected to the channel are arranged on the side walls near the upper end and the lower end of the first plug.

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