Perianal negative pressure drainage stoma bag

Abstract

The utility model provides a perianal negative pressure drainage stoma bag, including stoma bag, the lower end of stoma bag is sealed through the sealing clamp, the inside of stoma bag is equipped with built -in tube, one end of built -in tube stretches out from the lower end of stoma bag one side and is connected with three -way valve, the other end of built -in tube extends along stoma bag lateral wall, the built -in tube in stoma bag inside evenly is equipped with a plurality of openings, the outside of stoma bag is equipped with a plurality of U type holder for clamping and fixing built -in tube, one side of stoma bag is installed with the adhesive disc of perianal skin adhesion, the outside of adhesive disc is equipped with arc pad, the utility model discloses a perianal physiological curve is pasted to arc pad, and elastic filling wrinkle gap, and the double seal is formed with the raised adhesive pad, can effectively block the diarrhea watery stool leakage, simultaneously, the precise screw thread occlusion of screw cylinder and connecting pipe and the axial location of snap ring can solve the problem of pipeline assembly loose leakage, improve the sealing of stoma bag whole.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a perianal negative pressure drainage ostomy bag. Background Technology An ostomy bag is a medical device used to collect human excrement. In addition to its use in the daily care of patients after colostomy or cystostomy, it can also be used to care for patients with diarrhea. By attaching the ostomy bag to the patient's anus, inserting one end of the tubing into the ostomy bag, and connecting the other end of the tubing to a negative pressure suction device, it can effectively collect the frequent loose stools excreted during diarrhea, reduce the direct irritation of excrement to the perianal skin, and lower the risk of incontinence dermatitis.

[0002] However, existing ostomy bags have certain shortcomings when used at the anus: 1. The adhesive layer at the edge of the ostomy bag does not fit well with the perianal skin, especially the perianal folds are not filled enough, which makes it easy for excrement to leak from the edge and contaminate the perianal skin; 2. The drainage / rinsing tube inserted from the lower end of the ostomy bag has poor sealing with the ostomy bag outlet, which is easy to loosen or leak during assembly, and the tube is easy to shift during negative pressure suction or rinsing, resulting in poor drainage and poor rinsing effect. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a perianal negative pressure drainage ostomy bag, and the technical solution adopted is as follows: An anal negative pressure drainage ostomy bag includes an ostomy bag, the lower end of which is sealed by a sealing clip, and an internal tube is provided inside the ostomy bag. One end of the internal tube extends from one side of the lower end of the ostomy bag and is connected to a three-way valve, and the other end of the internal tube extends along the side wall of the ostomy bag. Several openings are evenly provided in the internal tube inside the ostomy bag. The ostomy bag is provided with multiple U-shaped clips on the outside for clamping and fixing the internal tube. A rubber disc that fits against the perianal skin is installed on one side of the ostomy bag. An arc-shaped pad is provided on the outside of the rubber disc, and an annular rubber pad is provided on the surface of the rubber disc and outside the arc-shaped pad.

[0004] Furthermore, the ostomy bag is provided with a connecting tube, and the surface of the internal tube is provided with a retaining ring. A movable screw is provided on the outside of the retaining ring. The screw is threadedly connected to the connecting tube. The retaining block and the screw are movably connected. The outside of the retaining block is provided with a protruding retaining strip, and the screw is provided with a corresponding retaining groove inside the screw. Under the condition of ensuring a seal, the internal tube can be prevented from rotating with the screw.

[0005] Furthermore, the U-shaped clamps are evenly distributed along the side wall of the ostomy bag, and their inner side is provided with anti-slip stabilizers to ensure the stability of the internal tube.

[0006] Furthermore, the curved pad is made of silicone, and its surface is covered with the same gel layer as the rubber disc. The elastic deformation capability of the silicone pad can accurately fill the perianal folds. Combined with the gel layer covering the surface, the curved pad can form a seamless fit with the skin.

[0007] Furthermore, the adhesive pad protrudes 0.5cm from the arc-shaped pad, adhering closely to the skin surface to form an annular sealing ring, which, together with the arc-shaped pad, forms a "filling inside and sealing outside" dual sealing system.

[0008] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model uses an arc-shaped pad that conforms to the physiological curve of the anus, elastically fills the gaps in the folds, and the raised rubber pad can form an outer seal, achieving "filling the folds inside and sealing the edges outside". Even when faced with frequent loose stools from diarrhea patients, it can completely prevent leakage and avoid excrement from contaminating the perianal skin.

[0009] 2. This utility model can completely solve the problems of loose assembly and leakage between the pipe and the ostomy bag outlet by the precise thread engagement between the screw barrel and the connecting pipe and the axial limiting of the retaining ring, thereby improving air tightness and liquid tightness; the equidistantly distributed U-shaped clamps tightly fix the internal tube to the side wall of the ostomy bag, preventing the pipe from shifting during negative pressure suction or flushing. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the connection structure between the rubber disc and the arc-shaped pad of this utility model; Figure 2 This is a schematic diagram of the arrangement structure of the built-in tube of this utility model; Figure 3 This is a schematic diagram of the overall structure of this utility model; Figure 4 This is a schematic diagram of the arrangement structure of the U-shaped clip of this utility model; Figure 5 This is a schematic diagram of the structure of the screw barrel of this utility model; Figure 6 This is a schematic diagram of the connection structure between the screw barrel and the connecting pipe of this utility model; Figure 7 This is a utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 8 This is a utility model Figure 3 Enlarged schematic diagram of the structure at point B; Figure 9 This is a utility model Figure 3 Enlarged schematic diagram of the structure at point C.

[0011] In the picture: 1-Ostomy bag, 2-Interior tube, 21-Opening, 22-Clamping ring, 23-Screw barrel, 24-Three-way valve, 3-Sealing clamp, 4-Plastic disc, 41-Plastic pad, 42-Arc-shaped pad, 5-U-shaped clamp, 6-Connecting tube. Detailed Implementation

[0012] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0013] As attached Figure 1-9 As shown.

[0014] An anal negative pressure drainage ostomy bag includes an ostomy bag 1 as the main body. The lower end of the ostomy bag 1 is sealed by a sealing clip 3. An internal tube 2 is provided inside the ostomy bag 1. One end of the internal tube 2 extends from one side of the lower end of the ostomy bag 1 and is connected to a three-way valve 24. Through the three-way valve 24, the internal tube 2 can be connected to an external negative pressure system or a flushing device.

[0015] The other end of the built-in tube 2 extends along the side wall of the ostomy bag 1, and several openings 21 are evenly provided in the tube body of the built-in tube 2 in the ostomy bag 1 to form a multi-directional drainage / rinsing channel.

[0016] Multiple U-shaped clips 5 are provided on the outside of the ostomy bag 1 for fixing and holding the internal tube 2. The U-shaped clips 5 are evenly distributed along the side wall of the ostomy bag 1, which can tightly clamp and fix the internal tube 2 to the ostomy bag 1, ensuring that the tube will not shift under negative pressure or flushing conditions.

[0017] Furthermore, a plastic disc 4 for fitting against the perianal skin is installed in the ostomy bag 1. An arc-shaped pad 42 is provided on the outside of the plastic disc 4. The arc-shaped pad 42 is made of silicone and its surface is covered with the same gel layer as the surface of the plastic disc 4. The arc-shaped pad 42 is designed according to the physiological curve of the perianal area. Through its elasticity and the action of the gel, it can further fill the gap between the skin and the ostomy bag, improve the sealing performance and wearing comfort, and effectively prevent the leakage of excrement.

[0018] A rubber pad 41 is provided on the surface of the rubber disc 4 outside the arc-shaped pad 52. The rubber pad 41 forms another circumferential seal on the outside of the rubber disc 4. The elastic deformation of the silicone tightly adheres to the skin, further enhancing the sealing effect. The rubber pad 41 protrudes 0.5cm from the arc-shaped pad 42, and together with the arc-shaped pad 42, they can form a double sealing system of "inner filling and outer sealing".

[0019] A connecting tube 6 is provided in the ostomy bag 1 at the position where the internal tube 2 passes through. A retaining ring 22 is provided on the surface of the internal tube 2, and a screw 23 is provided on the outside of the retaining ring 22. The screw 23 is connected to the connecting tube 6 by threads.

[0020] The external thread of the aforementioned screw barrel 23 precisely engages with the internal thread of the connecting pipe 6 to form a mechanical seal, which can effectively ensure the airtightness and liquid tightness of the ostomy bag 1 and prevent leakage. The retaining ring 22 radially clamps the built-in tube 2 to prevent axial displacement of the built-in tube 2 when the thread is tightened, further improving the stability of the connection and ensuring the continuous and efficient operation of the drainage / rinsing function.

[0021] The three-way valve 24 of this device supports switching between "negative pressure drainage-flushing-closing" modes. When using this device, first tear off the release paper on the surface of the plastic disc 4 and the arc-shaped pad 42, attach the arc-shaped pad 42 to the plastic disc 4, align the opening in the plastic disc 4 with the anus, and attach it to the patient's perianal skin. When attaching, ensure that the arc-shaped pad 42 tightly fills the perianal folds.

[0022] During use, the three-way valve 24 is switched to negative pressure drainage mode. One of the ports of the three-way valve 24 is connected to a negative pressure suction device, which can promptly remove perianal excrement, reduce fecal irritation to the skin, and prevent perianal skin from erosion, ulcers, and other problems caused by repeated contamination.

[0023] After drainage, switch the three-way valve 24 to the flushing mode. Use a syringe to inject flushing fluid into the internal tube 2 to flush the ostomy bag 1. This will keep the tube unobstructed, prevent the excrement from clogging the drainage, and also help keep the inside of the device clean and reduce the risk of infection.

[0024] Alternating between negative pressure suction and drainage 2-3 times can more thoroughly remove perianal excrement and impurities. Negative pressure suction first removes most of the visible excrement, while flushing washes away any fine residue and contaminants that may be attached to the inner wall of the ostomy bag and tubing. Negative pressure suction then completes the final cleaning, effectively performing multiple cleaning processes, greatly improving the quality of cleaning and reducing the environment for bacterial growth.

[0025] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A perianal negative pressure drainage ostomy bag, comprising an ostomy bag (1), wherein the lower end of the ostomy bag (1) is sealed by a sealing clip (3), characterized in that: The ostomy bag (1) is provided with an internal tube (2). One end of the internal tube (2) extends from the lower side of the ostomy bag (1) and is connected to a three-way valve (24). The other end of the internal tube (2) extends along the side wall of the ostomy bag (1). Several openings (21) are evenly provided in the internal tube (2) inside the ostomy bag (1). The ostomy bag (1) is provided with a plurality of U-shaped clips (5) for clamping and fixing the internal tube (2) on the outside. A rubber disc (4) that fits the perianal skin is installed on one side of the ostomy bag (1). An arc-shaped pad (42) is provided on the outside of the rubber disc (4). An annular rubber pad (41) is provided on the surface of the rubber disc (4) and on the outside of the arc-shaped pad (42).

2. The perianal negative pressure drainage ostomy bag as described in claim 1, characterized in that: The ostomy bag (1) is provided with a connecting tube (6), and the surface of the internal tube (2) is provided with a retaining ring (22). A movable screw (23) is provided on the outside of the retaining ring (22), and the screw (23) is threadedly connected to the connecting tube (6).

3. The perianal negative pressure drainage ostomy bag as described in claim 1, characterized in that: The U-shaped clips (5) are distributed at equal intervals along the side wall of the ostomy bag (1).

4. The perianal negative pressure drainage ostomy bag as described in claim 1, characterized in that: The arc-shaped pad (42) is made of silicone and its surface is covered with the same gel layer as the rubber disc (4).

5. The perianal negative pressure drainage ostomy bag as described in claim 4, characterized in that: The rubber pad (41) protrudes 0.5cm from the arc-shaped pad (42), forming a "filling inside and sealing outside" double sealing system with the arc-shaped pad (42).

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