Novel ostomy bag capable of promoting healing and preventing adhesion

Abstract

The invention relates to the technical field of medical care instruments, in particular to a novel healing-promoting and adhesion-preventing ostomy bag which comprises a bag body, an opening is formed in one side of the bag body, a diaphragm is fixedly connected to one side of the bag body and covers the opening, a hot-melt tissue bonding layer is coated on one side of the diaphragm, and the hot-melt tissue bonding layer is coated on the other side of the diaphragm. A fixing belt is arranged on the other side of the bag body, and a first fixing disc is fixedly connected to one side of the fixing belt; the hot-melt tissue bonding layer is solidified into compact gel at the body temperature, gapless sealing is formed in cooperation with extrusion of the air bag, extremely high barrier performance is achieved for loose stool and intestinal flatulence of patients in the digestive system department, and the leakage rate is reduced to 5% or below; the antibacterial peptide component added in the bonding layer can inhibit the breeding of intestinal bacteria and reduce the irritation of excrement to the skin, and by combining with the medical breathable composite bag body, the incidence rate of irritant dermatitis around the stoma is reduced by more than 60%, and the nursing workload of the digestive system department is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of medical and nursing device technology, specifically a novel ostomy bag that promotes healing and prevents adhesion. Background Technology

[0002] In gastroenterology clinical practice, ostomy is a crucial means of saving the lives of critically ill patients with intestinal diseases. According to clinical statistics, more than 100,000 new gastroenterology ostomy patients are diagnosed in my country each year. These patients require long-term reliance on ostomy bags to collect intestinal waste, and the effectiveness of their care directly affects their postoperative recovery and quality of life. However, existing ostomy bags have many limitations in their clinical application in gastroenterology, seriously affecting the quality of care and patient experience. Firstly, many patients with ostomy in the gastroenterology department also experience bowel dysfunction. In the early postoperative period, their excrement is mainly loose stool or liquid, containing a large amount of digestive fluid and bacteria. The pressure-sensitive adhesive method currently used for ostomy bags is easily affected by loose stool and intestinal gas, leading to adhesion failure and a leakage rate of over 35%. Leaked excrement continuously irritates the skin around the stoma, causing irritant dermatitis, erosion, and even fistula infection. This is the most common complication in ostomy care in the gastroenterology department, with an incidence rate exceeding 40%. This not only increases patient suffering but also requires a significant additional investment of nursing resources to manage skin problems.

[0003] Secondly, gastroenterology patients often experience malnutrition and weakened immunity after surgery, resulting in poor healing ability of the stoma mucosa and surrounding tissues. Furthermore, the continuous irritation from intestinal excretions easily leads to adhesions between the stoma and surrounding tissues, granulation tissue hyperplasia, and prolonged healing time. Some patients even develop stoma stenosis due to adhesions, requiring secondary intervention. Existing ostomy bags only have a collection function and lack targeted designs to promote healing and prevent adhesions, thus failing to meet the rehabilitation needs of gastroenterology patients.

[0004] Thirdly, the Department of Gastroenterology emphasizes early postoperative ambulation to promote intestinal peristalsis and reduce postoperative complications such as intestinal adhesions. However, the existing ostomy bag fixation methods are not stable enough, and the adhesion and fixation coordination is poor. They rely solely on adhesive layer bonding and lack auxiliary compression fixation structures. After the adhesive layer cures, gaps are prone to appear, leading to an increased risk of leakage. The bags are also prone to displacement and falling off during patient movement, forcing patients to limit their range of motion, which violates the rehabilitation nursing concept of the Department of Gastroenterology. At the same time, some ostomy bags with fixation structures are bulky and have poor breathability. Long-term wear can easily lead to local skin stuffiness and dampness, further aggravating the risk of skin damage.

[0005] Fourth, the stoma care scenario in the gastroenterology department is complex, with patients having significant differences in stoma location (left lower abdomen, right lower abdomen) and size. Existing stoma bags lack adaptability in terms of heating and fixation structures. Fixation of the heating area can easily lead to uneven melting of the adhesive layer, and the tightness of the fixation straps is inconvenient, increasing the difficulty of nursing operations, especially in batch clinical care where efficiency is low. Therefore, a new type of stoma bag that promotes healing and prevents adhesion is proposed. Summary of the Invention

[0006] In view of this, the present invention provides a novel ostomy bag that promotes healing and prevents adhesion, in order to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0007] The technical solution of this invention is implemented as follows: A novel ostomy bag for promoting healing and preventing adhesion includes a bag body, an opening on one side of the bag body, a diaphragm fixedly connected to one side of the bag body, the diaphragm covering the opening, a hot-melt tissue adhesive layer coated on one side of the diaphragm, a fixing strap on the other side of the bag body, a first fixing plate fixedly connected to one side of the fixing strap, two annular airbags fixedly connected to one side of the first fixing plate, a second fixing plate fixedly connected to one side of the annular airbags, two annular electric heating coils fixedly connected to one side of the second fixing plate, and two solenoid valves installed on one side of the fixing strap. The two solenoid valves are respectively connected to the air supply end of the two annular airbags, and the air supply end of each of the two solenoid valves is connected to a connecting pipe. One end of each connecting pipe is connected to an air supply tube.

[0008] More preferably, a release paper is bonded to one side of the diaphragm via a hot-melt adhesive layer, and an auxiliary line is bonded to one side of the release paper.

[0009] More preferably, the outer side wall of the release paper is integrally formed with a pull head.

[0010] In a further preferred embodiment, the liquid outlet end of the bag is fitted with a sealing strip.

[0011] More preferably, a connecting strap is provided on one side of the fixing strap, and both ends of the fixing strap and the connecting strap are sewn together with Velcro.

[0012] More preferably, the bag body has a composite structure of "polytetrafluoroethylene film-nonwoven fabric-polyurethane film" and an opening diameter of 3-5cm.

[0013] More preferably, the inner diameter of the annular electric heating coil is 2.5cm and 4cm, respectively, the rated power is 5-8W, the heating temperature is 45-50℃, and it is equipped with a temperature sensor and automatic power-off protection function.

[0014] More preferably, the annular airbag has an inflation pressure of 0.05-0.1 MPa and a surface coated with an anti-slip silicone layer; the fixing strap and connecting strap are made of high-elastic medical nylon material, and the inner side is fitted with a medical breathable cotton lining.

[0015] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions: I. The hot-melt tissue adhesive layer of this invention solidifies into a dense gel at body temperature, forming a gapless seal when combined with airbag compression. It has a strong barrier effect on loose stools and intestinal bloating in gastroenterology patients, reducing the leakage rate to below 5%. The antimicrobial peptides added to the adhesive layer can inhibit the growth of intestinal bacteria and reduce the irritation of excrement to the skin. Combined with a medical breathable composite bag, it reduces the incidence of peristomal irritant dermatitis by more than 60%, significantly reducing the workload of gastroenterology nursing.

[0016] Second, the dual fixation design of the present invention, which combines temperature-sensitive heat-fusion bonding and airbag compression, ensures that the ostomy bag does not shift or fall off when the patient turns over or walks, fully meeting the rehabilitation requirements of gastroenterology patients to get out of bed early after surgery. The fixation straps and connecting straps are made of highly elastic and breathable material, with a breathable cotton lining on the inside, so there is no pressure when wearing it. They can also be removed after fixation, avoiding the stuffiness and dampness caused by long-term wear, and improving the patient's comfort and freedom of movement.

[0017] Third, the double-ring electric heating coil of this invention can flexibly select the heating area according to the size and location of the patient's stoma, adapting to the stoma characteristics after different intestinal diseases; the pull head and auxiliary line design of the release paper and the quick fixation structure of Velcro simplify the clinical nursing operation process, shorten the nursing time of a single patient by 40%, and are especially suitable for batch nursing scenarios in gastroenterology, reducing the workload of nursing staff.

[0018] Fourth, when replacing the stoma, the adhesive layer is softened by local heat application, making it easy to peel off the stoma and avoiding tearing damage to the fragile stoma mucosa and surrounding skin of gastroenterology patients; the temperature-sensitive properties and biocompatible materials of the adhesive layer ensure that there is no allergy or irritation after long-term wear, which is suitable for the long-term care needs of patients.

[0019] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a structural diagram from another perspective of the present invention; Figure 3 This is a partial structural diagram of the present invention; Figure 4 For the present invention Figure 3 Exploded structure diagram.

[0022] Reference numerals: 1. Bag body; 2. Opening; 3. Diaphragm; 31. Hot melt adhesive layer; 4. Release paper; 5. Auxiliary line; 6. Slip-on; 7. Sealing strip; 8. Fixing strap; 9. First fixing plate; 10. Annular airbag; 11. Second fixing plate; 12. Annular electric heating coil; 13. Solenoid valve; 14. Connecting pipe; 15. Gas supply pipe; 16. Connecting strap; 17. Velcro. Detailed Implementation

[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0024] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0025] like Figure 1-4 As shown, this embodiment of the invention provides a novel ostomy bag for promoting healing and preventing adhesion, including a bag body 1. An opening 2 is provided on one side of the bag body 1. A diaphragm 3 is fixedly connected to one side of the bag body 1, covering the opening 2. A hot-melt tissue adhesive layer 31 is coated on one side of the diaphragm 3. A fixing strap 8 is provided on the other side of the bag body 1. A first fixing plate 9 is fixedly connected to one side of the fixing strap 8. Two annular airbags 10 are fixedly connected to one side of the first fixing plate 9. A second fixing plate 11 is fixedly connected to one side of the annular airbags 10. Two annular electric heating coils 12 are fixedly connected to one side of the second fixing plate 11. Two solenoid valves 13 are installed on one side of the fixing strap 8. The two solenoid valves 13 are respectively connected to the air supply end of the two annular airbags 10. The air supply end of the two solenoid valves 13 is connected to a connecting pipe 14. One end of the two connecting pipes 14 is connected to an air supply pipe 15.

[0026] In one embodiment, a release paper 4 is bonded to one side of the diaphragm 3 via a hot-melt tissue adhesive layer 31, and an auxiliary line 5 is bonded to one side of the release paper 4. The diaphragm 3 is made of medical PU breathable membrane (thickness 0.08-0.12mm), fixed to the side of the bag body 1 where the opening 2 is opened, completely covering the opening 2. The edge of the diaphragm 3 is heat-sealed with the bag body 1 to ensure no leakage. The hot-melt tissue adhesive layer 31 is applied to the side of the diaphragm 3 away from the bag body 1, with a thickness of 0.5-1mm. It is made of a composite temperature-sensitive material of "polycaprolactone-gelatin-chitosan", with added epidermal growth factor (EGF) and antimicrobial peptides. It has the characteristics of "being in a spreadable sol state at >40℃ and curing into a stable gel state at 37℃ human body temperature", which not only achieves strong adhesion, but also promotes stoma tissue healing, inhibits bacterial growth, and prevents adhesion.

[0027] In one embodiment, the outer wall of the release paper 4 is integrally formed with a pull head 6; the release paper 4 is made of silicone paper and is attached to the side of the hot melt adhesive layer 31 away from the diaphragm 3 to protect the hot melt adhesive layer 31 and prevent contamination when not in use; the outer wall of the release paper 4 is integrally formed with a pull head 6 (width 1-1.5cm) to facilitate quick tearing.

[0028] In one embodiment, a sealing strip 7 is installed at the liquid outlet end of the bag body 1.

[0029] In one embodiment, a connecting strap 16 is provided on one side of the fixing strap 8, and both ends of the fixing strap 8 and the connecting strap 16 are sewn together with Velcro 17; both the fixing strap 8 and the connecting strap 16 are made of high-elastic medical nylon material, the length is adjustable, and both ends are sewn together with Velcro 17, so that the fasteners can be used to fix the patient's waist, making it comfortable to wear and not easy to shift.

[0030] In one embodiment, the bag body 1 is a composite structure of "polytetrafluoroethylene membrane - non-woven fabric - polyurethane membrane", and the opening 2 has a diameter of 3-5cm. The bag body 1 is made of medical-grade composite material, with an inner layer of polytetrafluoroethylene waterproof and breathable membrane (thickness 0.1-0.2mm), a middle layer of non-woven fabric absorbent layer (thickness 0.3-0.5mm), and an outer layer of polyurethane protective membrane (thickness 0.15-0.25mm). It is waterproof, breathable, leak-proof and flexible, avoiding skin irritation from excrement. The edge of the opening 2 adopts a rounded transition design to reduce friction damage to the skin around the stoma.

[0031] In one embodiment, the inner diameters of the annular electric heating coil 12 are 2.5cm and 4cm, respectively, the rated power is 5-8W, the heating temperature is 45-50℃, and it is equipped with a temperature sensor and automatic power-off protection function.

[0032] In one embodiment, the annular airbag 10 is inflated at a pressure of 0.05-0.1 MPa and coated with an anti-slip silicone layer. The fixing strap 8 and the connecting strap 16 are made of high-elastic medical nylon material, with a medical breathable cotton lining attached to the inside. There are two annular airbags 10, which are coaxially fixed between the first fixing plate 9 and the second fixing plate 11. They are made of medical elastic rubber material and can achieve axial compression after inflation. The inflation pressure of the airbag is controlled at 0.05-0.1 MPa, which can provide stable compression force without compressing the stoma tissue.

[0033] In operation, the invention works as follows: Connect the external inflation device to the air supply pipe 15, connect the external power interface to the annular electric heating coil 12, check the sealing performance and circuit continuity of each component, trim the hole size of the diaphragm 3 according to the stoma size and the auxiliary line 5, peel off the release paper 4 (using the pull head 6 for assisted separation), align the hole of the diaphragm 3 with the patient's stoma, ensuring the heat-fused tissue adhesive layer 31 adheres tightly to the skin around the stoma, secure the fixing strap 8 and connecting strap 16 around the patient's waist using Velcro 17, adjust the tightness to a comfortable state, ensure the second fixing plate 11 is aligned with the area of ​​the heat-fused tissue adhesive layer 31, select the corresponding annular electric heating coil 12 according to the stoma size, heat to 45-50℃, causing the heat-fused tissue adhesive layer 31 to melt into a sol state, and simultaneously, through external inflation... The gas device inflates the annular airbag 10 through the gas supply pipe 15, connecting pipe 14, and solenoid valve 13. The expansion of the annular airbag 10 drives the second fixing plate 11 to squeeze the heat-melted tissue adhesive layer 31, making it fit tightly against the skin. The compression state is maintained for 30-60 seconds. After the heat-melted tissue adhesive layer 31 cools and solidifies into a gel state with the body temperature (37℃), the annular electric heating coil 12 is turned off, and the gas in the annular airbag 10 is released through the solenoid valve 13. The Velcro 17 is unfastened and the fixing strap 8 and connecting strap 16 are removed to complete the fixation of the ostomy bag. After the excrement is collected to a certain amount, the outlet end of the bag 1 is opened through the sealing strip 7 to discharge. When changing the ostomy bag regularly, the heat-melted tissue adhesive layer 31 can be softened by local hot compress (temperature > 40℃) to easily peel off the bag 1 and avoid skin damage.

[0034] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A novel ostomy bag that promotes healing and prevents adhesion, characterized in that: The bag includes a bag body (1), with an opening (2) on one side. A diaphragm (3) is fixedly connected to one side of the bag body (1), covering the opening (2). A hot-melt tissue adhesive layer (31) is coated on one side of the diaphragm (3). A fixing strap (8) is provided on the other side of the bag body (1). A first fixing plate (9) is fixedly connected to one side of the fixing strap (8). Two annular airbags (10) are fixedly connected to one side of the first fixing plate (9). A second fixing plate (11) is fixedly connected to one side of the annular airbags (10). Two annular electric heating coils (12) are fixedly connected to one side of the second fixing plate (11). Two solenoid valves (13) are installed on one side of the fixing strap (8). The two solenoid valves (13) are respectively connected to the air supply end of the two annular airbags (10). The air supply end of the two solenoid valves (13) is connected to a connecting pipe (14). One end of the two connecting pipes (14) is connected to an air supply pipe (15).

2. The novel ostomy bag for promoting healing and preventing adhesion according to claim 1, characterized in that: One side of the diaphragm (3) is bonded with release paper (4) through a hot melt adhesive layer (31), and one side of the release paper (4) is bonded with auxiliary lines (5).

3. The novel ostomy bag for promoting healing and preventing adhesion according to claim 2, characterized in that: The outer side wall of the release paper (4) is integrally formed with a pull head (6).

4. A novel ostomy bag for promoting healing and preventing adhesion according to claim 1, characterized in that: A sealing strip (7) is installed at the liquid outlet end of the bag (1).

5. A novel ostomy bag for promoting healing and preventing adhesion according to claim 1, characterized in that: The fixing strap (8) has a connecting strap (16) on one side, and both ends of the fixing strap (8) and the connecting strap (16) are sewn together with Velcro (17).

6. A novel ostomy bag for promoting healing and preventing adhesion according to claim 1, characterized in that: The bag body (1) is a composite structure of "polytetrafluoroethylene film - non-woven fabric - polyurethane film", and the opening (2) has a diameter of 3-5cm.

7. A novel ostomy bag for promoting healing and preventing adhesion according to claim 1, characterized in that: The inner diameters of the annular electric heating coil (12) are 2.5cm and 4cm respectively, the rated power is 5-8W, the heating temperature is 45-50℃, and it is equipped with a temperature sensor and automatic power-off protection function.

8. A novel ostomy bag for promoting healing and preventing adhesion according to claim 1, characterized in that: The annular airbag (10) has an inflation pressure of 0.05-0.1 MPa and is coated with an anti-slip silicone layer. The fixing strap (8) and the connecting strap (16) are made of high-elastic medical nylon material and are lined with medical breathable cotton lining on the inside.

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