Flushing and negative pressure drainage integrated device for fistula orifice of external intestinal fistula

Abstract

The utility model aims to provide the fistula orifice flushing and negative pressure drainage integrated device for the external intestinal fistula, which can be used for directly cleaning the fistula orifice while providing mild negative pressure; an external intestinal fistula orifice flushing and negative pressure drainage integrated device is of a box-shaped structure with an opening in the lower surface and composed of an observation panel and a drainage body, the drainage body is of a hollow shell-shaped structure composed of an inner shell and an outer shell, a plurality of side face open holes are formed in the inner shell, a negative pressure drainage opening is formed in the outer shell, and a plurality of bottom face open holes are formed in the lower surface of the drainage body. A through flushing pipe groove is formed in the center of the observation panel and used for being connected with and fixing a flushing pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a medical device integrating flushing and negative pressure drainage for use in the fistula opening of external intestinal fistula. Background Art

[0002] External intestinal fistula is a condition where intestinal contents leak from a non-natural opening or a ruptured intestine into the extraperitoneal environment, commonly occurring after surgery or due to intestinal injury caused by diseases. This condition requires precise and effective treatment methods to promote healing and prevent infection. Negative Pressure Wound Therapy (NPWT) plays an important role in the treatment of external intestinal fistula. By applying continuous or intermittent negative pressure around the fistula opening, the negative pressure drainage technique helps promote the growth of granulation tissue, reduce leakage, and accelerate wound healing. In addition, combining the flushing function is particularly important for the treatment of external intestinal fistula. Flushing can remove infectious and necrotic tissues from the fistula opening and the surrounding tissues, reduce the risk of infection, and improve the effect of negative pressure drainage. Therefore, the method of combining flushing and negative pressure drainage is particularly crucial in the treatment of external intestinal fistula. It can not only clean the wound but also provide a more stable treatment environment through continuous negative pressure, thereby optimizing the treatment effect and accelerating the patient's recovery process.

[0003] In the traditional treatment of fistula openings and wounds, common methods include the double-layer sleeve suction method and the negative pressure suction method. The double-layer sleeve suction method uses a double-layer sleeve to connect to a negative pressure device, aiming to drain intestinal contents and keep the fistula opening and the surrounding area clean to promote healing. However, this method cannot automatically perform flushing, has poor drainage effect and suction, and is easily blocked by contents, requiring medical staff to frequently change dressings and dredge the drainage tube, increasing the nursing difficulty. The negative pressure suction method involves covering the fistula opening and the wound with a medical foam dressing, sealing it with a bio-permeable film, and opening a connection to a flushing suction cup at the position to be flushed. This method can promote the growth of granulation tissue and contribute to the healing of the fistula opening. However, its disadvantages include possible damage to the fragile intestinal wall fistula opening, easy blockage of pores and difficulty in directly flushing the fistula opening, poor ability to maintain the cleanliness of the fistula opening, and inconvenience in observing changes in the fistula opening. These limitations indicate that traditional methods have obvious deficiencies in operation convenience and efficiency, and further technological improvements are needed to improve the effectiveness and safety of treatment. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an integrated device for flushing and negative pressure drainage of the external intestinal fistula fistula opening, which can directly clean the fistula opening while providing mild negative pressure.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] An integrated device for flushing and negative pressure drainage of an enterocutaneous fistula opening, which consists of an observation panel and a drainage main body to form a box-shaped structure with an opening on the lower surface. The drainage main body is a hollow shell-shaped structure composed of an inner shell and an outer shell. There are several side openings on the inner shell, a negative pressure drainage port on the outer shell, and several bottom openings on the lower surface of the drainage main body. There is a through flushing tube groove at the center of the observation panel for connecting and fixing the flushing tube.

[0007] Further, there are two negative pressure drainage holes, which are respectively located on the opposite sides of the drainage main body.

[0008] Further, the observation panel is made of a transparent material.

[0009] Further, a flushing tube connector is fixed at the upper end of the flushing tube groove, and the upper surface of the flushing tube connector is recessed inward to form a sealing groove.

[0010] Further, a connector is movably fixed on the outer surface of the flushing tube. The connector consists of a connecting ring and a sealing member protruding vertically downward from the connecting ring.

[0011] Further, a biofilm and a dressing are sequentially placed below the integrated device to form a dressing drainage system. There are openings at the centers of the biofilm and the dressing for exposing the fistula opening.

[0012] Further, the lower surface of the drainage main body extends outward to form an extension piece.

[0013] Further, the lower end of the flushing tube is connected to a first flushing head, and the diameter of the water outlet of the first flushing head is much smaller than the diameter of the flushing tube.

[0014] Further, the lower end of the flushing tube is connected to a third flushing head. The third flushing head has four water outlets, and the water outlets are located on the four sides of the flushing tube.

[0015] The utility model has the following beneficial effects:

[0016] By designing the drainage port into an inner side drainage hole and a bottom drainage hole, the pressure of the negative pressure is dispersed, which is more suitable for the fragile fistula opening of the enterocutaneous fistula;

[0017] There are two negative pressure source connection ports, which can not only enable enhanced negative pressure extraction ability during flushing; but also use one of them as a backup. When the suction ability of one negative pressure source interface weakens, the other negative pressure source interface can be used to continue suction;

[0018] When constructing the drainage system for the fistula opening, openings are made at the central positions of the biofilm and the dressing for exposing the fistula opening; in cooperation with the flushing tube and the observation panel, the wound is flushed and the drainage situation is observed in real time;

[0019] The flushing tube is sealed in the flushing tube groove through a sealing groove and a seal;

[0020] Cooperating with flushing heads of different shapes, it can fully flush difficult-to-flush positions and surrounding positions. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of an integrated device for flushing and negative pressure drainage of an enterocutaneous fistula orifice of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the inner side of an integrated device for flushing and negative pressure drainage of an enterocutaneous fistula orifice of the present utility model;

[0023] Figure 3 is a schematic diagram of the flushing tube and its connecting parts in an integrated device for flushing and negative pressure drainage of an enterocutaneous fistula orifice of the present utility model;

[0024] Figure 4 is a schematic diagram of the structure and assembly of a biofilm in an integrated device for flushing and negative pressure drainage of an enterocutaneous fistula orifice of the present utility model;

[0025] Figure 5 is a schematic diagram of the structure and assembly of a dressing in an integrated device for flushing and negative pressure drainage of an enterocutaneous fistula orifice of the present utility model;

[0026] Figure 6 is a schematic structural diagram of an extension piece in an integrated device for flushing and negative pressure drainage of an enterocutaneous fistula orifice of the present utility model;

[0027] Figure 7 is a schematic structural diagram of a first flushing head in an integrated device for flushing and negative pressure drainage of an enterocutaneous fistula orifice of the present utility model;

[0028] Figure 8 is a schematic structural diagram of a second flushing head in an integrated device for flushing and negative pressure drainage of an enterocutaneous fistula orifice of the present utility model;

[0029] Figure 9 is a schematic structural diagram of a third flushing head in an integrated device for flushing and negative pressure drainage of an enterocutaneous fistula orifice of the present utility model.

[0030] Among them, 100 - observation panel, 200 - drainage main body, 110 - irrigation tube connector, 210 - negative pressure connector, 111 - irrigation tube groove, 112 - sealing groove, 220 - outer housing, 230 inner housing, 231 - side opening, 232 - bottom opening, 300 - irrigation tube, 310 - connector, 311 - connecting ring, 312 - seal, 400 - biofilm, 410 - biofilm opening, 500 - dressing, 510 - dressing opening, 600 - extension piece, 301 - first irrigation head, 302 - second irrigation head, 303 - third irrigation head. Detailed implementation manners

[0031] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. For the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0032] When flushing and negative pressure drainage are to be carried out for the fistula opening of external intestinal fistula, the following problems need to be considered: First, continuous negative pressure drainage should be possible during flushing, so the sealing performance at the connection of the irrigation tube is required to be good; second, the negative pressure should be relatively dispersed to avoid damaging the fragile intestinal wall fistula opening. Embodiment 1

[0033] A device integrating flushing and negative pressure drainage for the fistula opening of external intestinal fistula, such as Figure 1 、 Figure 2 shown, the top of the device is the observation panel 100. The observation panel 100 is a rectangular panel made of transparent material, which is convenient for observing the cleaning and drainage conditions in real time. Four sides of the observation panel 100 are vertically connected downward to form four side surfaces, and the four side surfaces are connected to each other to form the drainage main body 200. The observation panel 100 and the drainage main body 200 are fixedly connected to form a "box-shaped" structure with an opening at the bottom.

[0034] The drainage main body 200 is a shell-like structure with a closed internal hollow surface formed by an outer shell 220 and an inner shell 230. There are several side openings 231 on the inner shell of the drainage main body 200, several bottom openings 232 on the bottom surface of the drainage main body 200, and a negative pressure connector 210 on the outer shell of the drainage main body 200 for connecting to a negative pressure source. In this embodiment, there is also a secondary negative pressure connector 210 used as a backup negative pressure connector. The two negative pressure connectors 210 are located on opposite sides of the outer shell 220. When the suction drainage on one side is not smooth, the negative pressure connector 210 on the other side is enabled to continue the negative pressure drainage. At the same time, when flushing, a large amount of flushing liquid will enter the device. At this time, both negative pressure connectors 210 are started simultaneously to increase the intensity of negative pressure suction. The bottom openings 232 are used above the dressing 500 and the biofilm 400.

[0035] There is a through flushing tube groove 111 in the middle of the observation panel 100 for fixing and allowing the flushing tube to pass through the flushing tube groove 111. The flushing tube is placed in the internal space of the device, and the wound surface is cleaned by the water outlet of the tube head of the flushing tube. At the part of the flushing tube groove 111 outside the device, a flushing tube connector 110 is fixed at the upper end, and the upper surface of the flushing tube connector 110 is recessed inward to form a sealing groove 112. As Figure 3 shown, when in use, a connector 310 with a shape matching that of the flushing tube connection groove 110 and the sealing groove 112 is movably installed on the outer surface of the flushing tube. The connector 310 consists of an annular connecting ring 311. The inner diameter of the connecting ring 311 is equivalent to the outer diameter of the flushing tube 300. A sealing member 312 is vertically fixed downward on the lower surface of the connecting ring 311. The sealing member 312 is placed in the sealing groove 112 for fixation to achieve a sealing effect. After the sealing member 312 is completely inserted into the sealing groove 112, the lower surface of the connecting ring 311 closely adheres to the upper surface of the flushing tube connection groove 110. Embodiment 2

[0036] As Figure 4 and Figure 5 shown, a dressing system integrating flushing and negative pressure drainage for an intestinal external fistula fistula opening is presented. The dressing system consists of a device, a biofilm 400, and a dressing 500 sequentially placed below the device. The bottom part of the drainage main body 200 is placed above the biofilm 400.

[0037] Different from conventional wound surface negative pressure drainage, in this embodiment, the biofilm 400 and the dressing 500 have biofilm openings 410 and dressing openings 510 with the same shape and size at the center positions. The biofilm openings 410 and the dressing openings 510 expose the fistula opening, facilitating flushing and real-time viewing of the drainage and recovery of the fistula opening. Embodiment 3

[0038] As Figure 6As shown, a device with an extension sheet 600 is provided. The extension sheet 600 extends radially along the lower surface of the drainage main body 200. The extension sheet 600 provides a larger contact area, enabling it to be placed more stably on the surface of the biofilm 400. In addition, it can also provide a better sealing state. Example 4

[0039] As Figure 7 , Figure 8 , Figure 9 shown, three different types of rinsing heads connected to the rinsing tube 300 are demonstrated. The rinsing heads are connected to the rinsing tube 300 through existing technologies, such as threaded connection. The rinsing heads and the rinsing tube 300 have the same outer diameter. The rinsing tube 300 is fixed in the rinsing tube groove 111, and the rinsing heads are placed inside the device for use.

[0040] Figure 7 Shown is a pressurized first rinsing head 301. The opening of the first rinsing head 301 is much smaller than the inner diameter of the rinsing tube 300. With the input water flow pressure remaining unchanged, the reduced inner diameter provides a higher rinsing pressure for targeted cleaning of specific areas.

[0041] Figure 8 Shown is an angled second rinsing head 302. The opening of the second rinsing head 302 is located on the side, and its water outlet direction is also towards one side. The advantage is that it can rinse the areas at the corners.

[0042] Figure 9 Shown is a third rinsing head 303 that can be rinsed all around. The third rinsing head 303 has four openings located on four sides, and its water outlet directions are towards all around, enabling integrated cleaning of the wound surface and various areas around the wound surface.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated device for flushing and negative pressure drainage of enterocutaneous fistula, characterized in that, It consists of an observation panel and a drainage main body to form a box-shaped structure with an opening on the lower surface. The drainage main body is a hollow shell-shaped structure composed of an inner shell and an outer shell. There are several side openings on the inner shell, a negative pressure drainage port on the outer shell, and several bottom openings on the lower surface of the drainage main body. There is a through flushing tube groove at the center of the observation panel for connecting and fixing the flushing tube.

2. The integrated device for flushing and negative pressure drainage of an enterocutaneous fistula orifice according to claim 1, wherein There are two negative pressure drainage ports, which are respectively located on the opposite sides of the drainage main body.

3. The integrated device for flushing and negative pressure drainage of enterocutaneous fistula according to claim 1, characterized in that, The observation panel is made of transparent material.

4. The integrated device for flushing and negative pressure drainage of an enterocutaneous fistula according to claim 1, characterized in that, A flushing tube connector is fixed at the upper end of the flushing tube groove, and the upper surface of the flushing tube connector is recessed inward to form a sealing groove.

5. The integrated device for flushing and negative pressure drainage of an enterocutaneous fistula according to claim 4, characterized in that, A connector is movably fixed on the outer surface of the flushing tube. The connector consists of a connecting ring and a sealing member protruding vertically downward from the connecting ring.

6. The integrated device for flushing and negative pressure drainage of an enterocutaneous fistula orifice according to claim 1, characterized in that, A biofilm and a dressing are sequentially placed below the integrated device to form a dressing drainage system. There are openings at the centers of the biofilm and the dressing for exposing the fistula opening.

7. An integrated device for flushing and negative pressure drainage of an enterocutaneous fistula orifice according to claim 1, characterized in that, The lower surface of the drainage main body extends outward to form an extension piece.

8. The integrated device for intestinal external fistula orifice irrigation and negative pressure drainage according to claim 1, characterized in that, The lower end of the flushing tube is connected to a first flushing head, and the diameter of the water outlet of the first flushing head is much smaller than the diameter of the flushing tube.

9. The integrated device for flushing and negative pressure drainage of an enterocutaneous fistula orifice according to claim 1, characterized in that, The lower end of the flushing tube is connected to a third flushing head. The third flushing head has four water outlets, and the water outlets are located on the four sides of the flushing tube.

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