Adsorption structure for esophageal fistula device and esophageal fistula device

Abstract

The utility model provides an esophageal fistula device and an adsorption structure for the esophageal fistula device, the adsorption structure comprises a drainage tube and a sponge adsorption head, the sponge adsorption head is in a hollow cylinder shape, one end of the drainage tube is provided with a plurality of transoms, the hollow part of the sponge adsorption head wraps the drainage tube, and the sponge adsorption head covers the transoms; a plurality of spiral grooves are formed in the surface of the sponge adsorption head, and a spiral protruding part is formed between every two adjacent spiral grooves. The esophageal fistula liquid adsorption device solves the problems of low efficiency and poor adsorption effect of esophageal fistula liquid adsorption operation in the prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, and in particular to an adsorption structure for an esophageal fistula device and the esophageal fistula device thereof. Background Technology

[0002] Currently, in patients with esophageal fistulas, after external medication, the fistula gradually shrinks during treatment, and fluid (such as pus, exudate, and necrotic secretions) accumulates within it, requiring aspiration. Operators typically create a disposable suction head using materials such as medical gauze. This suction head is connected to a drainage tube, and an esophagoscope is used to insert it into the fistula opening within the esophagus. The suction head is then used to absorb the exudate, keeping the fistula dry. However, the use of this homemade suction head (i.e., placing it directly into the fistula) is inefficient, with poor suction, especially when the fistula is large. Larger suction heads require more preparation time and are less efficient.

[0003] Therefore, how can we overcome the problems of low efficiency and poor adsorption effect in esophageal fistula fluid adsorption operations? Utility Model Content

[0004] The purpose of this invention is to provide an adsorption structure for an esophageal fistula device and the esophageal fistula device thereof, mainly to solve the problems of low efficiency and poor adsorption effect of the liquid adsorption operation in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: an adsorption structure for an esophageal fistula device, characterized in that: the adsorption structure includes a drainage tube and a sponge adsorption head, the sponge adsorption head is a hollow cylinder, one end of the drainage tube is provided with several air windows, the hollow part of the sponge adsorption head wraps around the drainage tube, and the sponge adsorption head covers the air windows; the surface of the sponge adsorption head is provided with several spiral grooves, and a spiral protrusion is formed between adjacent spiral grooves.

[0006] Furthermore, the diameters of the two ends of the sponge adsorption head are smaller than the diameter of the middle part of the sponge adsorption head.

[0007] Furthermore, several air vents are evenly distributed on the drainage tube.

[0008] Furthermore, the drainage tube is provided with a marking section for displaying the length, and the marking section is arranged from one end of the drainage tube to the other end.

[0009] Furthermore, the drainage tube includes a first tube body and a second tube body. The hollow part of the sponge adsorption head is wrapped around the first end of the first tube body. The fourth end of the second tube body is connected to a negative pressure device. A snap-fit ​​structure for quick installation is provided between the second end of the first tube body and the third end of the second tube body.

[0010] Furthermore, the outer side of the second end of the first tube is provided with several locking teeth, and the inner side wall of the third end of the second tube is provided with several locking grooves, the locking teeth and locking grooves forming a snap-fit ​​structure;

[0011] The outer side of the second end of the first tube is provided with a sealing ring for forming a sealing structure with the inner wall of the third end of the second tube or with the opening of the third end of the second tube. The sealing ring is located below the retaining teeth.

[0012] An esophageal fistula device is characterized in that: the esophageal fistula device includes a negative pressure bottle and an adsorption structure for the above-mentioned esophageal fistula device, the air inlet of the negative pressure bottle is connected to the other end of the drainage tube, the air outlet of the negative pressure bottle is connected to an air suction bag for extracting gas from the negative pressure bottle to form a negative pressure, and the air suction bag is provided with a one-way valve.

[0013] An esophageal fistula device is characterized in that: the esophageal fistula device includes a negative pressure bottle and an adsorption structure for the above-mentioned esophageal fistula device, the air inlet of the negative pressure bottle is connected to the fourth end of the second tube, the air outlet of the negative pressure bottle is connected to a suction airbag for extracting gas from the negative pressure bottle to form a negative pressure, and the suction airbag is provided with a one-way valve.

[0014] Furthermore, the outer side of the negative pressure bottle has two symmetrical concave arc surfaces.

[0015] Furthermore, the outer side of the negative pressure bottle has a recessed area for accommodating the suction airbag.

[0016] In view of the above technical features, the present invention has the following beneficial effects:

[0017] 1. The present invention relates to an adsorption structure for an esophageal fistula device, wherein a sponge adsorption head is provided on the drainage tube, eliminating the need for the operator to make their own adsorption head. The operator can directly use the adsorption head (i.e., place the sponge adsorption head at the fistula opening of the esophageal fistula), thereby improving the efficiency of the entire process. In addition, the sponge material of the sponge adsorption head and several spiral grooves can also help improve the adsorption effect and absorb more liquid more quickly.

[0018] 2. The present invention provides an esophageal fistula device, which is connected to a negative pressure bottle and a suction bag for drawing out the gas in the negative pressure bottle to form a negative pressure. It is applicable in various scenarios, and is simple to operate and convenient to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the adsorption structure used in an esophageal fistula device according to specific embodiment 1. Figure 1 (Partial magnification)

[0020] Figure 2 This is a schematic diagram of the adsorption structure used in an esophageal fistula device according to specific embodiment 1. Figure 2 .

[0021] Figure 3yes Figure 2 Sectional view of AA.

[0022] Figure 4 This is a diagram showing the usage state of an adsorption structure for an esophageal fistula device in Specific Embodiment 1.

[0023] Figure 5 This is a cross-sectional view of the adsorption structure used in an esophageal fistula device according to specific embodiment 2.

[0024] Figure 6 This is a schematic diagram of the snap-fit ​​structure in specific embodiment 2.

[0025] Figure 7 This is a schematic diagram of the structure of an esophageal fistula device in specific embodiment 3. Figure 1 (Door-view angle)

[0026] Figure 8 This is a schematic diagram of the structure of an esophageal fistula device in specific embodiment 3. Figure 2 (Side view angle)

[0027] Figure 9 This is a schematic diagram of the structure of an esophageal fistula device in specific embodiment 3. Figure 3 (Top view)

[0028] In the diagram: 1. Sponge suction head; 1-1. Spiral groove; 1-2. Spiral protrusion; 1-3. Hollow part;

[0029] 2. Drainage tube; 2-1. One end of the drainage tube; 2-2. The other end of the drainage tube; 2-3. Air vent; 2-4. Identification section;

[0030] 3. The first pipe body; 3-1. The first end of the first pipe body; 3-2. The second end of the first pipe body; 3-3. Sealing ring;

[0031] 4. The second pipe body; 4-1. The third end of the second pipe body; 4-2. The fourth end of the second pipe body;

[0032] 5. Buckle structure; 5-1. Buckle teeth; 5-2. Buckle groove;

[0033] 6. Negative pressure bottle; 6-1. Concave arc surface; 6-2. Concave area; 6-3. Air inlet of negative pressure bottle; 6-4. Air outlet of negative pressure bottle;

[0034] 7. De-icing bag; 7-1. Trachea;

[0035] 8. Esophagus;

[0036] 9. Esophageal fistula; 9-1. Fistula opening. Detailed Implementation

[0037] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0038] See Figures 1 to 4 In specific embodiment 1, an adsorption structure for an esophageal fistula device is provided. The adsorption structure includes a drainage tube 2 and a sponge adsorption head 1. The sponge adsorption head 1 is a hollow cylinder that can cover the fistula opening 9-1 of the esophageal fistula 9 (i.e., the passage opening where the esophageal fistula 9 connects to the esophagus 8). Even if the fistula opening 9-1 is large in the early stage of treatment, the cylindrical sponge adsorption head 1 placed in the esophagus 8 can completely cover the fistula opening 9-1, absorb the pus and other fluids overflowing from the fistula opening 9-1, and keep the wound dry.

[0039] The surface of the sponge suction head 1 is provided with several spiral grooves 1-1, and spiral protrusions 1-2 are formed between adjacent spiral grooves 1-1. When the sponge suction head 1 is inserted into the esophagus 8 and reaches the fistula opening 9-1 of the esophageal fistula 9, the spiral protrusions 1-2 are squeezed and deformed. The spiral grooves 1-1 provide space for the deformation of the spiral protrusions 1-2, which is suitable for the esophageal 8 of different sizes in different people. When the sponge suction head 1 reaches the fistula opening 9-1 of the esophageal fistula 9, the spiral protrusions 1-2 corresponding to the fistula opening 9-1 will extend and more closely cover the fistula opening 9-1.

[0040] The term "spiral" refers to the spiral extension of the cylindrical sponge adsorption head 1 upwards and downwards along its axial direction. Compared to the designs of axially linear grooves and axially linear protrusions, the design of the spiral groove 1-1 and spiral protrusion 1-2 in this embodiment 1 results in a larger overall volume and area for the spiral protrusion 1-2, enabling it to adsorb more liquid and achieve a better adsorption effect. The spiral protrusion 1-2 also has a larger contact area with the inner wall of the esophagus 8, allowing it to fit more closely to the sidewall of the esophagus 8 and increasing friction.

[0041] In addition, the spiral protrusions 1-2 make it difficult for a coaxial parallel gap to be formed between the sponge suction head 1 and the patient's esophagus 8. Even if the patient's esophagus 8 is wide, the spiral protrusions 1-2 placed in the esophagus 8 cannot completely fill the gap created by the spiral grooves 1-1 after being compressed and deformed. This gap is also spiral-shaped. If there is a lot of fluid in the fistula 9-1 and the fluid in the sponge suction head 1 is not suctioned out in time, resulting in fluid in the gap, the spiral gap increases the retention time of the fluid in the gap. The spiral gap design makes the fluid flow down slower and the amount of fluid flowing down is smaller, reducing the possibility of fluid dripping into the esophagus 8 or even the stomach, making it safer to use.

[0042] The diameter of the two ends of the sponge suction head 1 is smaller than the diameter of the middle part of the sponge suction head 1. In other words, the sponge suction head 1 is shaped with small ends and a large middle part. This makes it easier for the sponge suction head 1 to enter and exit the esophagus 8, reducing the patient's discomfort.

[0043] One end 2-1 of the drainage tube is provided with several air windows 2-3. The hollow part 1-3 of the sponge adsorption head 1 wraps around the drainage tube 2, and the sponge adsorption head 1 covers the air windows 2-3. Under the action of the negative pressure device, the drainage tube 2 draws air out through the air windows 2-3. The liquid adsorbed in the sponge adsorption head 1 (such as pus, exudate, and necrotic secretions) will slowly collect in the hollow part 1-3 and enter the drainage tube 2 through the air windows 2-3, and then be drawn into the negative pressure device (such as the negative pressure bottle 6) by the drainage tube 2. Preferably, the air windows 2-3 are evenly distributed on the drainage tube 2. The air windows 2-3 can be arranged in multiple rows horizontally and vertically, or they can be distributed in a staggered manner, all to more evenly absorb the liquid stored in the sponge adsorption head 1 from all directions and improve the suction efficiency.

[0044] Preferably, the drainage tube 2 is provided with a marking part 2-4 for displaying the length, such as raised or recessed numerical marks, or printed numerical marks. The marking part 2-4 is arranged from one end 2-1 of the drainage tube to the other end 2-2 of the drainage tube, so that the operator can intuitively see the length of the drainage tube 2-1 that extends into the patient's esophagus 8, and grasp the depth or position of the sponge suction head 1 in the esophagus 8, thereby improving the efficiency of the use of the sponge suction head 1.

[0045] In this embodiment 1, the specific usage of the adsorption structure for an esophageal fistula device involves the operator placing the sponge adsorption head 1 inside the esophagus 8, corresponding to the fistula opening 9-1 of the esophageal fistula 9, using an esophagoscopy. The sponge adsorption head 1 then seals the fistula opening 9-1, immediately absorbing the fluid produced by the esophageal fistula 9. Utilizing the tiny pores and channels inside the sponge, the fluid produced by the esophageal fistula 9 rises or flows within these pores (i.e., the capillary action of the sponge), enabling the sponge adsorption head 1 to adsorb the fluid. A negative pressure device connected to the other end of the drainage tube 2 then generates negative pressure, causing the fluid adsorbed by the sponge adsorption head 1 to enter the drainage tube 2 through the air window 2-3. The drainage tube 2 then guides the fluid into the negative pressure device, completing the aspiration of the fluid from the fistula opening 9-1 of the esophageal fistula 9.

[0046] In this embodiment 1, the sponge suction head 1 is a disposable item. It needs to be replaced with a new sponge suction head 1 every 4-5 days in order to continuously absorb the fluid produced by the esophageal fistula and keep the fistula dry.

[0047] See Figures 5 to 6In specific embodiment 2, an adsorption structure for an esophageal fistula device is provided. The difference between embodiment 2 and embodiment 1 is that the drainage tube 2 includes a first tube body 3 and a second tube body 4. The hollow portion 1-3 of the sponge adsorption head 1 wraps around the first end 3-1 of the first tube body. The fourth end 4-2 of the second tube body is connected to a negative pressure device. A snap-fit ​​structure 5 for quick installation is provided between the second end 3-2 of the first tube body and the third end 4-1 of the second tube body. The split-type drainage tube 2 design, combined with the sponge adsorption head 1, makes the entire adsorption structure more convenient and comfortable to use. The procedure can be simplified into three steps: First, leave the fourth end 4-2 of the second tube outside the body for later connection to the negative pressure device. Insert the third end 4-1 of the second tube into the patient's nasal cavity, then through the patient's throat and mouth, and remove the third end 4-1. Second, leave the second end 3-2 of the first tube outside the body for later connection to the third end 4-1. Insert the first end 3-1 of the first tube, along with the sponge suction head 1, into the esophagus 8 through the patient's mouth and throat until the sponge suction head 1 seals the fistula opening 9-1 of the esophageal fistula 9. Third, insert the first... The second end 3-2 of the tube body is connected to the third end 4-1 of the second tube body, for example, the two are snapped together to form a whole. Finally, the fourth end 4-2 of the second tube body is pulled, so that the connection between the second end 3-2 of the first tube body and the third end 4-1 of the second tube body (for example, the snap-fit ​​structure 5) is retracted into the oral cavity and into the esophagus 8. At this time, one end of the drainage tube 2 is located in the esophagus 8, and the other end of the drainage tube 2 is located outside the nasal cavity and connected to the negative pressure device. During this process, the sponge suction head 1 enters the esophagus 8 through the mouth and throat, without passing through the nasal cavity, so there will be no problem that the sponge suction head 1 cannot be inserted into the nasal cavity, thus improving the patient's comfort.

[0048] Preferably, the outer side of the second end of the first tube 3 is provided with a plurality of locking teeth 5-1, and the inner side wall of the first end of the second tube 4 is provided with a plurality of locking grooves 5-2. The locking teeth 5-1 and the locking grooves 5-2 form a snap-fit ​​structure 5. It is only necessary to insert the second end 3-2 of the first tube into the third end 4-1 of the second tube to quickly engage the locking teeth 5-1 with the locking grooves 5-2, thereby realizing the function of quick connection between the first tube 3 and the second tube 4. The structure is simple and the operation is convenient.

[0049] The outer surface of the second end 3-2 of the first tube is provided with a sealing ring 3-3 for forming a sealing structure with the inner wall of the third end 4-1 of the second tube. The sealing ring 3-3 is located below the retaining teeth 5-1. When the first tube 3 and the second tube 4 are quickly connected, the sealing ring 3-3 precisely seals the opening of the third end 4-1 of the second tube, or the sealing ring 3-3 can also fit against the inner wall of the third end 4-1 of the second tube to form a sealing structure. No air leakage will occur at the connection between the first tube 3 and the second tube 4, avoiding affecting the negative pressure environment inside the drainage tube 2 and avoiding affecting the adsorption effect of the adsorption structure.

[0050] See Figures 7 to 9 In specific embodiment 3, this embodiment 3 provides an esophageal fistula device, which includes an adsorption structure used in the esophageal fistula device of the aforementioned embodiment. The air inlet 6-3 of the negative pressure bottle is connected to the other end 2-2 of the drainage tube (for example, the air inlet 6-3 of the negative pressure bottle is connected to the fourth end 4-2 of the second tube). The air outlet 6-4 of the negative pressure bottle is connected to a suction bag 7 for drawing out the gas in the negative pressure bottle 6 to form a negative pressure (for example, the air outlet 6-4 of the negative pressure bottle and the suction bag 7 are connected by a trachea 7-1). The suction bag 7 ensures that the negative pressure bottle 6 can maintain a negative pressure environment, so that the use of the esophageal fistula device 9 is not limited by the site or conditions (for example, no power is required, just manually press the suction bag 7). The suction bag 7 is equipped with a one-way valve (not shown in the figure). The one-way valve can only release air and cannot allow air to enter.

[0051] The negative pressure bottle 6 has two symmetrical concave arc surfaces 6-1 on its outer side, which makes it easy for the operator to hold the negative pressure bottle 6 with one hand.

[0052] The outer side of the negative pressure bottle 6 has a recessed area 6-2 for storing the suction bag 7. The suction bag 7 can be stored in the recessed area 6-2 at any time, making the operation simple and convenient.

[0053] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0054] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0055] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. An adsorption structure for an esophageal fistula device, characterized in that: The adsorption structure includes a drainage tube (2) and a sponge adsorption head (1). The sponge adsorption head (1) is a hollow cylinder. One end (2-1) of the drainage tube is provided with several air windows (2-3). The hollow part (1-3) of the sponge adsorption head (1) wraps around the drainage tube (2) and covers the air windows (2-3). The surface of the sponge adsorption head (1) is provided with several spiral grooves (1-1), and a spiral protrusion (1-2) is formed between adjacent spiral grooves (1-1).

2. The adsorption structure for an esophageal fistula device according to claim 1, characterized in that: The diameter of the two ends of the sponge adsorption head (1) is smaller than the diameter of the middle part of the sponge adsorption head (1).

3. The adsorption structure for an esophageal fistula device according to claim 1, characterized in that: Several air vents (2-3) are evenly distributed on the drainage tube (2).

4. The adsorption structure for an esophageal fistula device according to claim 1, characterized in that: The drainage tube (2) is provided with a marking section (2-4) for displaying the length. The marking section (2-4) is arranged from one end (2-1) of the drainage tube to the other end (2-2).

5. The adsorption structure for an esophageal fistula device according to claim 1, characterized in that: The drainage tube (2) includes a first tube body (3) and a second tube body (4). The hollow part (1-3) of the sponge adsorption head (1) is wrapped around the first end (3-1) of the first tube body. The fourth end (4-2) of the second tube body is connected to a negative pressure device. A snap-fit ​​structure (5) for quick installation is provided between the second end (3-2) of the first tube body and the third end (4-1) of the second tube body.

6. The adsorption structure for an esophageal fistula device according to claim 5, characterized in that: The outer side of the second end (3-2) of the first tube body is provided with several locking teeth (5-1), and the inner side wall of the third end (4-1) of the second tube body is provided with several locking grooves (5-2). The locking teeth (5-1) and the locking grooves (5-2) form a snap-fit ​​structure (5). The outer side of the second end (3-2) of the first tube is provided with a sealing ring (3-3) for forming a sealing structure with the inner wall of the third end (4-1) of the second tube or with the opening of the third end (4-1) of the second tube. The sealing ring (3-3) is located below the retaining tooth (5-1).

7. An esophageal fistula device, characterized in that: The esophageal fistula device includes a negative pressure bottle (6) and an adsorption structure for an esophageal fistula device as described in any one of claims 1 to 4. The air inlet (6-3) of the negative pressure bottle is connected to the other end (2-2) of the drainage tube, and the air outlet (6-4) of the negative pressure bottle is connected to a suction bag (7) for drawing out the gas in the negative pressure bottle (6) to form a negative pressure. The suction bag (7) is provided with a one-way valve.

8. An esophageal fistula device, characterized in that: The esophageal fistula device includes a negative pressure bottle (6) and an adsorption structure for an esophageal fistula device as described in claim 5 or 6. The air inlet (6-3) of the negative pressure bottle is connected to the fourth end (4-2) of the second tube body, and the air outlet (6-4) of the negative pressure bottle is connected to a suction bag (7) for drawing out the gas in the negative pressure bottle (6) to form a negative pressure. The suction bag (7) is provided with a one-way valve.

9. An esophageal fistula device according to claim 7 or 8, characterized in that: The negative pressure bottle (6) has two symmetrical concave arc surfaces (6-1) on its outer side.

10. The esophageal fistula device according to claim 9, characterized in that: The negative pressure bottle (6) has a recess (6-2) on its outer side for accommodating the suction air bag (7).

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