Stomach tube with exhaust function

Abstract

The utility model discloses a stomach tube with an exhaust function, which comprises a stomach tube main tube, an exhaust component for guiding exhaust is arranged on the outer side of the stomach tube main tube, and an extrusion mechanism for extruding the exhaust component is arranged on the outer side of the exhaust component; the exhaust assembly comprises an exhaust pipe, a suspension air bag and a one-way valve, the exhaust pipe is fixed to the outer side of the stomach tube main pipe, an air inlet is formed in the lower end of the exhaust pipe, an exhaust port is formed in the upper end of the exhaust pipe, the suspension air bag is arranged on the outer side of the lower end of the exhaust pipe, and the one-way valve is installed at the upper end of the exhaust pipe; and the extrusion mechanism is mounted at the upper end of the exhaust pipe. According to the structure, when the stomach tube main tube is inserted, the exhaust tube can be driven to enter the stomach together, two channels are formed between the exhaust tube and the stomach tube main tube, the exhaust tube and the stomach tube main tube can not affect each other, active exhaust can be conveniently achieved through the extrusion mechanism, and exhaust is smoother; in addition, external air can be prevented from flowing back into the stomach of the patient through the one-way valve.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and more particularly to a gastric tube with an exhaust function. Background Art

[0002] A nasogastric tube is a medical device used to deliver essential fluids and food to patients who are unable to swallow on their own. These tubes are typically made of polyurethane or silicone and are recommended to be replaced monthly, depending on the material. They come in various sizes, including thickness and length, and are primarily categorized as orogastric and nasogastric.

[0003] An orogastric tube is approximately 45 cm long and needs to be inserted approximately 35 to 40 cm from the mouth. A nasogastric tube, on the other hand, is approximately 105 cm long and needs to be inserted approximately 55 cm through the nostrils, passing through the pharynx and esophagus, and ultimately into the stomach. Because nasogastric tubes can be easily dislodged, they must be securely fastened to prevent repeated intubation and aspiration. A nasogastric tube consists of the tube, a feeding port connector, a tube clamp, and a cross-knot cap.

[0004] When a nasogastric tube is left in the esophagus, the patient's digestive tract physiological environment changes, potentially causing the esophageal sphincter to not close properly. Furthermore, pressure from airway obstruction or severe coughing can lead to complications such as esophageal reflux. The tube also allows for the extraction of gastric fluid for analysis.

[0005] Chinese patent announcement number (CN214762286U) discloses a double-lumen gastric tube with exhaust function, including a first lumen, a second lumen inserted into the outer surface of the first lumen, an air bag sleeved at the lower end of the outer surface of the first lumen, and a circular hole opened at the lower end of the outer surface of the first lumen. The utility model adds an exhaust device, which pumps air into the interior of the air bag through the second lumen, and then due to the buoyancy of the air bag, the air bag will float on the gastric fluid. Before or after the infusion of nutrient solution, the excess air in the stomach can be extracted through the circular hole opened at the end of the first lumen, thereby extracting the air in the patient's stomach, preventing the patient from vomiting due to hiccups, and reducing the probability of aspiration. Since the air bag floats in the stomach, the gastric tube can be fixed in the stomach, thereby preventing the patient from falling off the gastric tube due to turning over and coughing.

[0006] However, the above patent still has the problem of low exhaust efficiency for gastric gas. For example, in the above patent, a branch tube is connected to the main gastric tube and suspended on the gastric fluid through an air bag. The gastric tube is punched to allow gas to enter the gastric tube and be discharged through the branch tube. However, in this method, the branch tube and the gastric tube are used in the same pipe. When the gastric tube is in operation, the gas cannot flow. Secondly, this method is passive exhaust, which requires the gas to actively enter the pipe and float up to be discharged. It is easy to cause excessive accumulation of gas in the patient's stomach, and it is impossible to quickly and effectively eliminate the gas in the stomach. Utility Model Content

[0007] In view of this, the purpose of the present invention is to provide a gastric tube with an exhaust function. The gastric tube provided by the present invention can drive the exhaust tube into the stomach when the gastric tube main pipe is inserted, and there are double channels between the exhaust tube and the gastric tube main pipe, so that they do not affect each other, and through the extrusion mechanism, active exhaust can be easily achieved, making the exhaust smoother; in addition, the setting of the one-way valve can prevent external air from flowing back into the patient's stomach; the overall problem of low exhaust efficiency of gastric tubes for gastric gas in the prior art is solved.

[0008] In order to achieve the above purpose, the technical solution of the utility model is:

[0009] A gastric tube with exhaust function, comprising a gastric tube main pipe, an exhaust assembly for guiding exhaust gas is provided on the outside of the gastric tube main pipe, and an extrusion mechanism for extruding the exhaust assembly is provided on the outside of the exhaust assembly;

[0010] The exhaust assembly includes an exhaust pipe, a suspension airbag and a one-way valve. The exhaust pipe is fixed to the outside of the gastric tube main pipe and extends along the length direction of the gastric tube main pipe. The lower end of the exhaust pipe is provided with an air inlet hole, and the upper end is provided with an exhaust port. The suspension airbag is provided on the outside of the lower end of the exhaust pipe. The one-way valve is installed at the upper end of the exhaust pipe to control the conduction of the exhaust pipe from the air inlet hole to the exhaust port; the squeezing mechanism is installed at the upper end of the exhaust pipe, and the squeezing mechanism can squeeze the exhaust pipe to generate a pressure difference in the exhaust pipe.

[0011] Furthermore, the air inlet hole is opened on the outer peripheral side wall of the exhaust pipe and is located above the suspension airbag.

[0012] Furthermore, the number of the air inlet holes in the circular array is 2-4.

[0013] Furthermore, the diameter of the exhaust pipe is smaller than the diameter of the main pipe of the stomach tube.

[0014] Furthermore, the squeezing mechanism includes a control box and a negative pressure balloon, a support pad and a toggle member arranged inside the control box. The control box is mounted on the outside of the exhaust pipe. The negative pressure balloon is also arranged on the exhaust pipe and is connected to the exhaust pipe. The support pad and the toggle member are respectively arranged on both sides of the negative pressure balloon. Driving the toggle member can squeeze the negative pressure balloon to generate a pressure difference in the exhaust pipe, thereby enabling the stomach gas to be discharged through the exhaust pipe.

[0015] Furthermore, the toggle member includes a servo motor, a connecting shaft and a cam. The servo motor is fixed to the back wall of the control box cavity. The output end of the servo motor is connected to the connecting shaft. The connecting shaft is connected to the cam. The cam can squeeze the negative pressure balloon during rotation.

[0016] Furthermore, the width of the support cushion is greater than the diameter of the negative pressure balloon, and a side of the support cushion close to the negative pressure balloon is provided with a curved surface adapted to the negative pressure balloon.

[0017] The beneficial effects of the present invention are:

[0018] The gastric tube provided by the utility model can drive the exhaust tube into the stomach when the main tube body is inserted, and there are double channels between the exhaust tube and the main tube body, so that they do not affect each other; and by setting a squeezing mechanism, the stomach gas can be discharged more efficiently through the exhaust tube, and the exhaust is smoother; in addition, the setting of the one-way valve can prevent external air from flowing back into the patient's stomach, and the gas in the stomach can be discharged more quickly and effectively as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is the main view of the structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the exhaust assembly of the utility model;

[0023] Figure 4 It is a schematic diagram of the extrusion mechanism of the utility model.

[0024] Description of reference numerals:

[0025] 1. Gastric tube main pipe; 2. Exhaust assembly; 21. Exhaust pipe; 22. Suspension airbag; 23. One-way valve; 24. Air inlet; 25. Exhaust port; 3. Extrusion mechanism; 31. Control box; 32. Negative pressure balloon; 33. Support pad; 34. Toggle member; 341. Servo motor; 342. Connecting shaft; 343. Cam. DETAILED DESCRIPTION

[0026] The structure provided by the utility model is explained and illustrated in detail below with reference to the accompanying drawings.

[0027] refer to Figures 1 to 4 As shown, this embodiment specifically discloses a gastric tube with exhaust function, including a gastric tube main pipe 1, an exhaust assembly 2 for guiding exhaust is provided on the outside of the gastric tube main pipe 1, and an extrusion mechanism 3 for squeezing the exhaust assembly 2 is provided on the outside of the exhaust assembly 2;

[0028] like Figure 3 As shown, in order to facilitate gastric exhaust, the exhaust assembly 2 includes an exhaust pipe 21, a suspension airbag 22 and a one-way valve 23. The exhaust pipe 21 is fixed to the outside of the gastric tube main pipe 1 and extends along the length direction of the gastric tube main pipe 1. The lower end of the exhaust pipe 21 is provided with an air inlet 24, and the upper end is provided with an exhaust port 25. The suspension airbag 22 is provided on the outside of the lower end of the exhaust pipe 21, and the one-way valve 23 is installed at the upper end of the exhaust pipe 21 for controlling the conduction of the exhaust pipe 21 from the air inlet 24 to the exhaust port 25; the squeezing mechanism 3 is installed at the upper end of the exhaust pipe 21, and the squeezing mechanism 3 can squeeze the exhaust pipe 21 to generate a pressure difference in the exhaust pipe 21.

[0029] In this embodiment, when the gastric tube main pipe 1 is inserted, the exhaust pipe 21 can be driven into the stomach together, and there is a dual channel between the exhaust pipe 21 and the gastric tube main pipe 1, so that they do not affect each other. The one-way valve 23 is fixed to the top of the exhaust pipe 21. The provision of the one-way valve 23 can prevent external air from flowing back into the patient's stomach to achieve the purpose of automatic exhaust, that is, the one-way valve 23 can only allow the gas entering from the air inlet 24 to be discharged from the exhaust port 25, while external air cannot enter from the exhaust port 25.

[0030] In some embodiments, the air inlet 24 is provided on the outer peripheral side wall of the exhaust tube 21 and is located above the suspended air bag 22; this can effectively prevent the inhalation of gastric fluid into the exhaust tube 21, and 2-4 air inlet holes 24 are provided in a circular array, and the number can be adjusted according to specific needs; the exhaust tube 21 is mainly used to discharge gas, so its diameter is smaller than the diameter of the main tube 1 of the gastric tube, and the overall size of the gastric tube can be appropriately reduced.

[0031] Continue to refer Figure 4As shown, the squeezing mechanism 3 includes a control box 31 and a negative pressure balloon 32, a support pad 33 and a toggle member 34 arranged inside the control box 31. The control box 31 is mounted on the outside of the exhaust pipe 21. The negative pressure balloon 32 is also arranged on the exhaust pipe 21 and is connected to the exhaust pipe 21. The support pad 33 and the toggle member 34 are respectively arranged on both sides of the negative pressure balloon 32. Driving the toggle member 34 can squeeze the negative pressure balloon 32 to generate a pressure difference in the exhaust pipe 21, thereby enabling the stomach gas to be discharged through the exhaust pipe 21.

[0032] Specifically, when the toggle member 34 squeezes the negative pressure balloon 32 , a pressure difference is generated in the exhaust tube 21 , and the stomach gas enters the exhaust tube 21 from the air inlet 24 and is then discharged upward from the exhaust port 25 .

[0033] In the illustrated embodiment, the toggle member 34 includes a servo motor 341, a connecting shaft 342 and a cam 343. The servo motor 341 is fixed to the back wall of the inner cavity of the control box 31. The output end of the servo motor 341 is connected to the connecting shaft 342, and the connecting shaft 342 is connected to the cam 343. The cam 343 can squeeze the negative pressure balloon 32 during rotation.

[0034] Specifically, the servo motor 341 is driven to rotate the connecting shaft 342 and the cam 343 in turn. During the rotation of the cam 343, its protruding portion can squeeze the negative pressure balloon 32, causing the negative pressure balloon 32 to deform, thereby creating a pressure differential within the exhaust tube 21, allowing stomach gas to automatically enter the exhaust tube 21 and be discharged outward. In some embodiments, a controller can be installed outside the control box 31 and connected to the servo motor 341. During exhaust, the controller can be used to control the timing of the servo motor 341, that is, to control the timing of the start of the servo motor 341 to achieve the automatic exhaust function.

[0035] In some preferred embodiments, the width of the support pad 33 is greater than the diameter of the negative pressure balloon 32, and the side of the support pad 33 close to the negative pressure balloon 32 is provided with an arc surface that is adapted to the negative pressure balloon 32. The negative pressure balloon 32 can be fully deformed by reducing the space through the support pad 33, and the setting of the arc surface can make the negative pressure balloon 32 and the support pad 33 fit more closely.

[0036] The gastric tube provided by the present invention is used for automatic deflation of the gastric tube. When the gastric tube main body 1 is inserted, the exhaust tube 21 is driven to enter the stomach together with the gastric tube main body 1. There is a double channel between the exhaust tube 21 and the gastric tube main body 1, which can avoid affecting each other. The suspended air bag 22 can drive the exhaust tube 21 to be placed above the gastric fluid, and the air inlet 24 is above the suspended air bag 22, which can effectively prevent the inhalation of gastric fluid. At the same time, when deflation occurs, timing control can be performed by the controller to start the servo motor 341, and the output shaft drives the connecting shaft 342 to drive the cam 343 to rotate. During the rotation of the cam 343, its protruding part can squeeze the negative pressure balloon 32, and the space is reduced by the support pad 33 to fully deform the negative pressure balloon 32. During the back and forth squeezing of the negative pressure balloon 32, a pressure difference is generated in the exhaust tube 21, so that the stomach gas is drawn into the exhaust tube 21 through the air inlet 24 and then discharged upward. The one-way valve 23 is provided to prevent external air from flowing back into the patient's stomach to achieve the purpose of automatic deflation.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0038] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0039] In the description of this specification, the description with reference to the terms "this embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in an appropriate manner in any at least one embodiment or example. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and simple improvements made to the essential contents of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A gastric tube with exhaust function, characterized in that: The invention comprises a main stomach tube pipe (1), an exhaust assembly (2) for guiding exhaust is provided on the outside of the main stomach tube pipe (1), and an extrusion mechanism (3) for extruding the exhaust assembly (2) is provided on the outside of the exhaust assembly (2); The exhaust assembly (2) comprises an exhaust pipe (21), a suspended air bag (22) and a one-way valve (23). The exhaust pipe (21) is fixed to the outside of the gastric tube main pipe (1) and extends along the length direction of the gastric tube main pipe (1). The lower end of the exhaust pipe (21) is provided with an air inlet (24), and the upper end is provided with an exhaust port (25). The suspended air bag (22) is provided on the outside of the lower end of the exhaust pipe (21). The one-way valve (23) is installed at the upper end of the exhaust pipe (21) and is used to control the conduction of the exhaust pipe (21) from the air inlet (24) to the exhaust port (25). The squeezing mechanism (3) is installed at the upper end of the exhaust pipe (21). The squeezing mechanism (3) can squeeze the exhaust pipe (21) so as to generate a pressure difference in the exhaust pipe (21).

2. The gastric tube with exhaust function according to claim 1, characterized in that: The air inlet hole (24) is opened on the outer peripheral side wall of the exhaust pipe (21) and is located above the suspension airbag (22).

3. The gastric tube with exhaust function according to claim 2, characterized in that: The air inlet holes (24) are provided in a circumferential array with 2-4 holes.

4. The gastric tube with exhaust function according to claim 1, characterized in that: The diameter of the exhaust pipe (21) is smaller than the diameter of the stomach tube main pipe (1).

5. The gastric tube with exhaust function according to claim 1, characterized in that: The squeezing mechanism (3) comprises a control box (31) and a negative pressure balloon (32), a support pad (33) and a toggle (34) arranged inside the control box (31); the control box (31) is sleeved on the outside of the exhaust pipe (21); the negative pressure balloon (32) is also arranged on the exhaust pipe (21) and communicated with the exhaust pipe (21); the support pad (33) and the toggle (34) are respectively arranged on both sides of the negative pressure balloon (32); driving the toggle (34) can squeeze the negative pressure balloon (32) so that a pressure difference is generated in the exhaust pipe (21), thereby enabling gastric gas to be discharged through the exhaust pipe (21).

6. The gastric tube with exhaust function according to claim 5, characterized in that: The toggle member (34) includes a servo motor (341), a connecting shaft (342) and a cam (343). The servo motor (341) is fixed to the back wall of the inner cavity of the control box (31). The output end of the servo motor (341) is connected to the connecting shaft (342). The connecting shaft (342) is connected to the cam (343). The cam (343) can squeeze the negative pressure balloon (32) during rotation.

7. The gastric tube with exhaust function according to claim 5, characterized in that: The width of the support pad (33) is greater than the diameter of the negative pressure balloon (32), and a curved surface adapted to the negative pressure balloon (32) is provided on a side of the support pad (33) close to the negative pressure balloon (32).

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