An ileostomy concealment device without an external pouch

Abstract

This invention belongs to the field of medical device technology, specifically disclosing a concealed drainage device for enterostomies without an external stoma bag. It includes an insertion tube and a locking structure that snaps onto the upper end of the insertion tube. A protective cap is snapped onto the upper end of the locking structure. An embedded plate is fixed to the middle of the outer wall of the insertion tube. The protective cap has a drainage port, and a sliding cover is attached to the protective cap to conceal the drainage port. The inner cavity of the protective cap communicates with the inner cavity of the insertion tube. A storage bag is fitted onto the protective cap, with its storage end attached to the protective cap. This invention, through the synergistic design of a concealed protective cap, a multi-layered sealing and fixing structure, and a unidirectional drainage port, achieves daily concealment of the enterostomy to enhance patients' social confidence and convenience, while effectively preventing leakage and retrograde infection of excrement, significantly reducing the risk of peristomal skin complications, and facilitating disassembly, cleaning, and pressure monitoring, thereby comprehensively improving patients' postoperative quality of life and medical safety.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and specifically discloses a concealed excretion device for enterostomy without an external ostomy bag. Background Technology

[0002] Colorectal cancer is one of the most common malignant tumors in clinical practice. Colostomy is currently an effective treatment for colorectal cancer, ulcerative colitis, intestinal obstruction, and familial adenomatous polyposis.

[0003] This surgery creates an artificial anus (enterostomy) by suturing the intestines to the abdominal wall, replacing the anus's defecation function and thus achieving fecal diversion and intestinal decompression. Epidemiological studies show that the number of patients with enterostomies in my country is increasing by about 100,000 per year, and with the increasing desire of rectal cancer patients to preserve their anus, the proportion of ileal protective stoma surgeries is rising year by year.

[0004] Currently, the most widely used stoma care device in clinical practice is the traditional ostomy bag, which patients need to attach to the abdominal wall to collect excrement. However, existing ostomy bags have the following technical problems in practical use: First, there is a high risk of leakage of excrement, which can easily lead to peristomal skin complications. Due to individual differences in abdominal shape, such as skin folds, surgical scars, or parastomal hernias, standardized ostomy bags with flat bases cannot perfectly fit the patient's skin. In particular, for patients with ileostomies, their excrement is liquid and contains unneutralized digestive enzymes, which are corrosive. Once leakage occurs, it can easily lead to contact dermatitis, skin ulcers, and infections. Literature reports that the incidence of peristomal skin complications is as high as 73%.

[0005] Secondly, patients need to wear ostomy bags for extended periods, significantly impacting their quality of life and mental well-being. Once traditional ostomy bags are attached and secured, patients cannot easily remove them and must carry the bag containing excrement with them at all times. This not only produces odor but also causes disruption to social interactions, sleep, and personal appearance. When patients need to defecate, they must squat beside the toilet to empty the contents, a posture that is inconvenient and easily causes excrement to splash and soil clothing. Repeated bending over also increases abdominal pressure, potentially leading to complications such as parastomal hernia.

[0006] Third, the existing ostomy bag's sealing structure is flawed, leading to frequent changes and a heavy nursing burden. Most existing stool collection bags use compression strips or discharge tubes, resulting in poor sealing. During emptying, changes in patient position can easily cause leakage due to accidental opening. Furthermore, medical staff or family members need to frequently empty the stool collection bag, increasing the nursing workload and posing a risk of biocontamination during the emptying process.

[0007] Fourth, for patients in the early postoperative period after ostomy, intestinal function has not fully recovered, and changes in intestinal pressure need to be monitored. However, existing ostomy bag devices cannot achieve real-time monitoring of intestinal pressure, which is not conducive to clinical observation and prevention of complications.

[0008] Based on the aforementioned technical deficiencies, there is an urgent need to develop a stoma drainage device that has good sealing performance, can be worn discreetly, enables on-demand defecation, and is easy to disassemble and clean, in order to reduce patient suffering and improve postoperative quality of life. Summary of the Invention

[0009] In view of this, the object of the present invention is to provide a concealed excretion device for enterostomy without an external ostomy bag, so as to solve the problems mentioned above.

[0010] To achieve the above objectives, the present invention provides a concealed excretion device for enterostomy without an external ostomy bag, comprising an insertion tube and a locking structure that snaps onto the upper end of the insertion tube. A protective cap is snapped onto the upper end of the locking structure. An embedded plate is fixed in the middle of the outer wall of the insertion tube. A discharge port is provided on the protective cap. A pull cover is slidable on the protective cap and is used to cover the discharge port on the protective cap. The inner cavity of the protective cover is connected to the inner cavity of the insertion tube, and a storage bag is fitted onto the protective cover, with the storage end of the storage bag fitted onto the protective cover. In use, the lower part of the insertion tube is sutured into the enterostomy, the enterostomy is passed through and fixed to the locking structure, and then the shield for wound care is wrapped around the part where the insertion tube connects to the abdominal cavity, and the protective cover is connected to the locking structure. When a patient defecates, the storage bag is attached to the protective cover, and the discharge port is connected by pushing the cover.

[0011] In the above technical solution, both the insertion tube and the embedding plate are hollow mesh structures. The embedding plate is welded to the middle of the insertion tube. The insertion tube and the embedding plate are inserted into the patient's abdominal cavity, and at the same time, the embedding plate drives the insertion tube to be fixed on the enterostomy.

[0012] In the above technical solution, the engaging structure further includes a sleeve that is engaged with the upper end of the insertion tube. The outer wall of the sleeve is provided with slots at equal intervals. The upper end of the sleeve is engaged with the insertion tube. A connecting plate is fixed to the outer wall of the insertion tube. A locking strip is fixed to the bottom surface of the connecting plate. The locking strip is engaged with the slots.

[0013] In the above technical solution, the patient's enterostomy is further permeated by the insertion tube, the cannula, and the insertion tube in sequence. Then, medical staff suture the enterostomy onto the connecting plate, and the peripheral sidewall of the connecting plate is fixed with protrusions at equal intervals.

[0014] In the above technical solution, further, the connecting disc is fitted with an abutment ring, and there are two abutment rings distributed in total. The two abutment rings are engaged with each other, and a notch is provided on the abutment ring. The abutment ring engages with the protrusion through the notch.

[0015] In the above technical solution, further, the top surface of the abutment ring is fixed with locking blocks at equal intervals, the outer side of the locking blocks is fixed with protruding posts, the locking blocks are fitted with locking rings, the inner wall of the locking rings is fixed with protrusions, and the protrusions engage with the protruding posts.

[0016] In the above technical solution, the protective cover is further fitted onto the outside of the retaining ring, the protective cover is rotatably secured to the retaining ring, and the inner cavity of the protective cover is connected to the patient's enterostomy.

[0017] In the above technical solution, the protective cover is further provided with a sliding groove adapted to the sliding of the cover, the storage bag is flexible, and the discharge port is a one-way valve.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention, through the use of a detachable protective cover and a locking structure, eliminates the need for wearing an ostomy bag in daily life. The protective cover effectively conceals the stoma, protecting the intestines from external irritation and infection, while also concealing the stoma's appearance and odor. This solves the social embarrassment and psychological stress caused by long-term wearing of traditional ostomy bags. Patients only need to put on the receiving bag when they need to defecate, achieving on-demand use of the ostomy bag and eliminating the inconvenience of carrying excrement at all times, significantly improving the convenience and comfort of postoperative life.

[0019] 2. This invention ensures a tight connection between the device and human tissue through suturing and fixing the insertion tube, the embedded plate, and the abdominal tissue, as well as multiple fixations to the enterostomy using a locking structure. Furthermore, it utilizes abutment rings and retaining rings to lock in place layer by layer, forming a reliable mechanical seal. This robust connection method effectively solves the problems of poor adhesion and leakage of excrement caused by variations in abdominal shape in traditional ostomy bags, thereby reducing the risk of skin inflammation around the stoma.

[0020] 3. The insertion tube and its outer wall embedding plate in this invention both adopt a perforated mesh structure. After this part is placed into the abdominal cavity and sutured, human tissue can grow into the mesh, which not only enhances the fixation strength between the device and the abdominal wall, preventing displacement or detachment, but also promotes wound healing and tissue fusion. This biocompatible fixation method is superior to the traditional fixation mode that relies solely on external adhesion, providing a more stable basic support for the enterostomy.

[0021] 4. The discharge port in this invention is designed as a one-way valve structure. When the patient uses the storage bag to defecate, this structure allows the excrement to flow into the storage bag in one direction and automatically closes after emptying. This effectively prevents the excrement in the storage bag from flowing back into the intestine due to changes in body position or compression, thus avoiding retrograde intestinal infection from the source. It is especially suitable for patients with liquid excrement, such as those with ileostomy, further ensuring the patient's medical safety.

[0022] 5. This invention adopts a modular design, with components such as the protective cover, retaining ring, and abutment ring all being detachable. After each bowel movement, the protective cover can be removed for cleaning and disinfection, ensuring the device's hygiene and compliance with medical antibacterial requirements. Furthermore, space is reserved inside the insertion tube for a pressure sensor, allowing medical staff to monitor the patient's intestinal pressure in real time as needed, facilitating clinical observation of early postoperative bowel function recovery and prevention of complications. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram showing the distribution of the connecting disc and the retaining ring in this invention; Figure 3 This is a diagram showing the connection structure between the card strip and the sleeve in this invention; Figure 4 This is a diagram showing the connection structure of the two abutment rings in this invention; Figure 5 This is a diagram showing the connection structure of the connecting disc and the insertion tube in this invention; Figure 6 This is a diagram showing the connection structure between the protrusion and the retaining ring in this invention; Figure 7 This is a diagram showing the connection structure between the sleeve and the insertion tube in this invention; Figure 8 This is a schematic diagram showing the usage state of the pull-out lid in this invention; Figure 9 This is a diagram showing the connection structure between the storage bag and the protective cover in this invention.

[0024] 1. Protective cover; 11. Pull-out cover; 12. Discharge port; 2. Insert tube; 21. Embedded plate; 3. Connecting disc; 31. Locking block; 32. Insert tube; 33. Locking ring; 34. Sleeve; 35. Locking strip; 36. Locking opening; 37. Abutment ring; 38. Protrusion; 39. Protruding head; 310. Protruding post; 311. Groove; 4. Storage bag. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0027] Example 1: Please refer to Figures 1-8 As shown, the present invention provides a technical solution: The present invention is a concealed excretion device for enterostomy without external ostomy bag, including an insertion tube 2 and a locking structure that is snapped onto the upper end of the insertion tube 2. A protective cover 1 is snapped onto the upper end of the locking structure. An embedded plate 21 is fixed in the middle of the outer wall of the insertion tube 2. A discharge port 12 is opened on the protective cover 1. A pull cover 11 slides on the protective cover 1. The pull cover 11 is used to cover the discharge port 12 on the protective cover 1. The inner cavity of the protective cover 1 is connected to the inner cavity of the insertion tube 2. A storage bag 4 is fitted onto the protective cover 1, and the storage end of the storage bag 4 is fitted onto the protective cover 1. When in use, the lower part of the insertion tube 2 is sutured into the enterostomy, the enterostomy is penetrated and fixed to the locking structure, and then the protective cover for wound care is wrapped around the part where the insertion tube 2 connects to the abdominal cavity. The protective cover can be a medical pad or dressing. The protective cover 1 is connected to the locking structure. When the patient needs to defecate, the storage end of the storage bag 4 is attached to the protective cover 1, and then the pull cover 11 is pushed to connect the inner cavity of the storage bag 4 with the inner cavity of the insertion tube 2 through the discharge port 12.

[0028] Both the insertion tube 2 and the embedding plate 21 are hollow mesh structures. The embedding plate 21 is welded to the middle of the insertion tube 2. The lower part of the insertion tube 2 and the embedding plate 21 are inserted into the patient's abdominal cavity. When the embedding plate 21 is sutured to the patient's wound, the embedding plate 21 can drive the insertion tube 2 to be fixed on the enterostomy. The embedding plate 21 and the insertion tube 2 are made of titanium alloy or pure titanium.

[0029] The engaging structure includes a sleeve 34 that is snapped onto the upper end of the insertion tube 2. The outer wall of the sleeve 34 has slots 311 at equal intervals. The upper end of the sleeve 34 is snapped onto an insertion tube 32. A connecting plate 3 is fixed to the outer wall of the insertion tube 32. A locking strip 35 is fixed to the bottom surface of the connecting plate 3. The locking strip 35 is snapped onto the slots 311.

[0030] The patient's enterostomy is inserted through the insertion tube 2, the cannula 34, and the insertion tube 32 in sequence. Then, the medical staff sutures the enterostomy onto the connecting plate 3. The peripheral sidewall of the connecting plate 3 is fixed with protrusions 39 at equal intervals.

[0031] The connecting plate 3 is fitted with an abutment ring 37. There are two abutment rings 37, which are engaged with each other. The abutment ring 37 has a slot 36, which engages with the protrusion 39.

[0032] The top surface of the abutment ring 37 is fixed with locking blocks 31 at equal intervals. The outer side of the locking block 31 is fixed with a protruding post 310. The locking block 31 is fitted with a retaining ring 33. The inner wall of the retaining ring 33 is fixed with a protrusion 38. The protrusion 38 engages with the protruding post 310.

[0033] The protective cover 1 is sleeved on the outside of the retaining ring 33. The protective cover 1 is rotated and snapped onto the retaining ring 33. The inner cavity of the protective cover 1 is connected to the patient's enterostomy. In actual use, medical staff first make an implantation port in the patient's abdominal cavity, and then insert the insertion tube 2 and the embedding plate 21 into the implantation port. Since both the insertion tube 2 and the embedding plate 21 are hollow mesh structures, after the insertion tube 2 and the embedding plate 21 are inserted into the implantation port, the medical staff suture the embedding plate 21 to the patient's abdominal cavity. After the embedded plate 21 is sutured into the patient's abdominal cavity, the cannula 34 is connected to the insertion tube 2. Then the insertion tube 32 is connected to the cannula 34. The medical staff removes the excretory end of the intestine from the inside of the cannula 34 and everts the outer wall of the intestine and sutures it to the connecting plate 3, thus fixing the intestine to the device. After the excretory end of the intestine is fixed to the connecting plate 3, the medical staff connect the abutment ring 37 to the connecting plate 3, and then fix the retaining ring 33 to the abutment ring 37. The medical staff can insert a pressure sensor inside the insertion tube 2 according to the patient's condition. The pressure sensor can be fixed inside the insertion tube 2 by fixing or other means, so as to monitor the pressure inside the patient's intestine in real time. After the retaining ring 33 is connected to the abutment ring 37, the staff will connect the protective cover 1 to the retaining ring 33, which will seal the excretory end of the intestine with the protective cover 1 and prevent the patient's intestine from being stimulated and infected by external factors. When a patient needs to defecate, the patient can attach the storage end of the storage bag 4 to the protective cover 1, and then push the pull cover 11 with their fingers to allow the excrement inside the intestines to be discharged into the storage bag 4 through the discharge port 12. The storage bag 4 can be a disposable folding storage bag. The storage end of the storage bag 4 is equipped with a connector, which is engaged with the protective cover 1. After the patient's intestinal waste is discharged into the storage bag 4, it is separated from the protective cover 1 through the connector on the storage bag 4, and then the storage bag 4 can be discarded. It should be noted that the protective cover 1 is made of medical-grade antibacterial material. After each bowel movement, the protective cover 1 needs to be disassembled and cleaned. When the protective cover 1 is connected to the retaining ring 33, the protective cover 1 can cover the patient's enterostomy, thereby making the patient's enterostomy discreet and also covering the odor emitted by the enterostomy, avoiding the need for the patient to wear an ostomy bag at all times.

[0034] Example 2: Please refer to Figures 1-8As shown, based on Embodiment 1, the present invention provides a technical solution. Unlike Embodiment 1, the discharge port 12 in this embodiment is a one-way valve. The advantage of this design is that it can prevent the excrement inside the storage bag 4 from flowing back when the patient needs to defecate, and can prevent the excrement from causing intestinal infection in the patient, thereby making it convenient for the patient to defecate.

[0035] The protective cover 1 has a sliding groove adapted to the sliding of the pull cover 11, the storage bag 4 is flexible, and the discharge port 12 is a one-way valve; In actual use, the discharge port 12 on the protective cover 1 can be made into a one-way valve. The advantage of this design is that it can prevent the excrement inside the storage bag 4 from flowing back when the patient needs to defecate, and can prevent the excrement from causing intestinal infection in the patient, thus making it convenient for the patient to defecate.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A concealed excretory device for enterostomy without an external stomach bag, comprising an insertion tube (2) and a locking structure that snaps onto the upper end of the insertion tube (2), characterized in that: The upper end of the snap-fit ​​structure is snapped with a protective cover (1), and an embedded plate (21) is fixed in the middle of the outer wall of the insertion tube (2). A discharge port (12) is opened on the protective cover (1), and a pull cover (11) slides on the protective cover (1). The pull cover (11) is used to cover the discharge port (12) on the protective cover (1). The inner cavity of the protective cover (1) is connected to the inner cavity of the insertion tube (2), and a storage bag (4) is fitted on the protective cover (1), with the storage end of the storage bag (4) fitted on the protective cover (1). When in use, the lower part of the insertion tube (2) is sutured into the enterostomy, the enterostomy is penetrated and fixed on the locking structure, and then the shield for wound care is wrapped around the part where the insertion tube (2) is connected to the abdominal cavity, and the protective cover (1) is connected to the locking structure. When the patient needs to defecate, the storage end of the storage bag (4) is attached to the protective cover (1), and then the pull cover (11) is pushed to make the inner cavity of the storage bag (4) connected to the inner cavity of the insertion tube (2) through the discharge port (12).

2. The concealed enterostomy excretion device without an external ostomy bag according to claim 1, characterized in that, The insertion tube (2) and the embedding plate (21) are both hollow mesh structures. The embedding plate (21) is welded to the middle of the insertion tube (2). The insertion tube (2) and the embedding plate (21) are inserted into the patient's abdominal cavity. At the same time, the embedding plate (21) drives the insertion tube (2) to be fixed on the enterostomy.

3. The concealed enterostomy excretion device without an external ostomy bag according to claim 1, characterized in that, The engaging structure includes a sleeve (34) that is snapped onto the upper end of the insertion tube (2). The outer wall of the sleeve (34) is provided with slots (311) at equal intervals. The upper end of the sleeve (34) is snapped onto an insertion tube (32). A connecting plate (3) is fixed to the outer wall of the insertion tube (32). A locking strip (35) is fixed to the bottom surface of the connecting plate (3). The locking strip (35) is snapped onto the slot (311).

4. The concealed enterostomy excretion device without an external ostomy bag according to claim 3, characterized in that, The patient's enterostomy is passed through the insertion tube (2), the cannula (34) and the insertion tube (32) in sequence. Then, the medical staff sutures the enterostomy onto the connecting plate (3). The peripheral sidewall of the connecting plate (3) is fixed with protrusions (39) at equal intervals.

5. The concealed enterostomy excretion device without an external ostomy bag according to claim 4, characterized in that, The connecting disc (3) is fitted with an abutment ring (37). There are two abutment rings (37), which are engaged with each other. The abutment ring (37) has a slot (36) on it, and the abutment ring (37) engages with the protrusion (39) through the slot (36).

6. The concealed enterostomy excretion device without an external ostomy bag according to claim 5, characterized in that, The top surface of the abutment ring (37) is fixed with a locking block (31) at equal intervals. A protruding post (310) is fixed on the outside of the locking block (31). A locking ring (33) is sleeved on the locking block (31). A protrusion (38) is fixed on the inner wall of the locking ring (33). The protrusion (38) engages with the protruding post (310).

7. The concealed enterostomy excretion device without an external ostomy bag according to claim 6, characterized in that, The protective cover (1) is sleeved on the outside of the retaining ring (33), the protective cover (1) is rotated and snapped onto the retaining ring (33), and the inner cavity of the protective cover (1) is connected to the patient's enterostomy.

8. The concealed enterostomy excretion device without an external ostomy bag according to claim 1, characterized in that, The protective cover (1) has a sliding groove adapted to the sliding of the pull cover (11), the storage bag (4) is flexible, and the discharge port (12) is a one-way valve.

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