Ostomy bag

By installing an excretion tube at the bottom of the ostomy bag and equipping it with a switch valve, the problem of inconvenient sealing of existing ostomy bags is solved, achieving higher sealing performance and safety, and improving patient comfort and environmental cleanliness.

CN223887036UActive Publication Date: 2026-02-10THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
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Patent Information

Application Number
CN202422541292.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-21
Publication Date
2026-02-10
Estimated Expiration
2034-10-21

AI Technical Summary

Technical Problem

Existing ostomy bags have drainage tubes that are difficult to seal, which can easily lead to leakage and splashing of excrement, affecting patient comfort and environmental cleanliness.

Method used

An ostomy bag was designed, which uses an excretion tube at the bottom of the bag and a switch valve installed on the excretion tube. The opening and closing of the excretion tube is controlled by rotating the switch valve, avoiding direct contact with excrement and ensuring sealing and safety.

Benefits of technology

It improves patient comfort, reduces the risk of excrement leakage and splashing, and enhances usage efficiency and environmental cleanliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to an ostomy bag which is used for containing excrement flowing out of the stoma of a patient, the discharged excrement flows into a containing cavity through an excretion hole, an excretion pipe is arranged at the bottom of a bag body, and when the excrement in the containing cavity needs to be discharged, the excrement flows into the containing cavity due to the gravity. The excretion tube can be connected with a negative pressure rubber tube, a drainage bag or a drainage bottle to timely lead out excrement in the ostomy bag, the stoma is prevented from being blocked, meanwhile, the excretion tube is provided with a switch valve, and when drainage is not needed, it is guaranteed that the bottom of the ostomy bag is in a closed state; compared with the defect that a sealing opening of an ostomy bag used clinically at present is prone to loosening to cause leakage when the amount of excrement is large, the ostomy bag has the advantages that the wearing comfort of a patient is greatly improved, and the working efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to an ostomy bag. Background Technology

[0002] An ostomy bag is a medical device used to collect human waste. It is typically used to collect waste from organs such as the intestines, bladder, and stomach to assist patients with excretion and maintain vital functions. Medical ostomy bags are usually made of soft, waterproof, and corrosion-resistant materials such as silicone, polyurethane, and polyethylene. Depending on the application and needs, medical ostomy bags are also divided into different types, such as gastrostomy bags, enterostomy bags, and bladderostomy bags, to accommodate waste collection from different sites.

[0003] Medical ostomy bags work by placing an acceptable bag or device at an opening on the body surface to collect secretions or excretions, avoiding direct skin contact and reducing the risk of infection and contamination. Medical ostomy bags can be used to manage various types of stomas, fistulas, wounds, and incisions, as well as to control and reduce discomfort and harm to patients caused by secretions and excretions. Simultaneously, medical ostomy bags can help healthcare professionals better observe and assess patients' conditions, leading to more effective treatment and management.

[0004] Chinese patent publication number "CN206333992U" discloses an ostomy bag. The document discloses that a drainage tube is provided at the bottom of the bag, and a sealing plug is provided inside the tube to close the drainage tube. The sealing plug is used to open and close the drainage tube. However, the sealing plug is simply blocked inside the drainage tube. When there is too much excrement in the bag, the sealing plug may fall out of the drainage tube, causing excrement leakage. At the same time, when it is necessary to take out a part of the excrement through the drainage tube for testing, the drainage tube is still draining when the sealing plug is inserted. Since the sealing plug only blocks the end of the drainage tube, the excrement will splash everywhere, causing pollution to the external environment. Utility Model Content

[0005] The purpose of this utility model is: based on the inventor's own practice and combined with actual usage, and in response to the defects of the existing technology, the inventor designed an ostomy bag to solve the technical problem that it is inconvenient to control the opening and closing of the drainage tube in the existing ostomy bag.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An ostomy bag includes a bag body and an adhesive portion disposed on the bag body. The bag body has a receiving cavity for receiving excrement. The adhesive portion is disposed on the outer surface of the bag body and has a discharge hole that communicates directly with the receiving cavity. A discharge tube is also disposed at the bottom of the bag body, and the discharge tube communicates with the receiving cavity and the outside of the bag body. A switch valve for controlling the opening and closing of the discharge tube is disposed on the discharge tube, and the switch valve is integrally disposed with the discharge tube.

[0008] Furthermore, the switching valve includes a support rod disposed inside the discharge pipe, a baffle plate is provided on the support rod, and a lever is provided on the outside of the discharge pipe, one end of the lever being connected to the support rod.

[0009] Furthermore, the diameter of the baffle is the same as the inner diameter of the drain pipe.

[0010] Furthermore, the outer side of the baffle is covered with a sealing element.

[0011] Furthermore, the switching valve includes a handle disposed outside the drain pipe and a valve core disposed inside the drain pipe. The end of the valve core is connected to the handle, the valve core is disposed perpendicular to the drain pipe, and the valve core is provided with a through hole.

[0012] Furthermore, the diameter of the through hole is the same as the inner diameter of the drain pipe, and the through hole penetrates both sides of the valve core.

[0013] Furthermore, a connecting part is provided on the side of the discharge pipe away from the bag body, and the connecting part consists of multiple convex rings with diameters ranging from small to large.

[0014] Furthermore, a pressure relief valve is provided on the bag body.

[0015] Furthermore, the pressure relief valve is located at the top of the bag body, and the pressure relief valve connects the receiving cavity to the outside.

[0016] Furthermore, the surface of one side of the bag is also provided with a scale.

[0017] The beneficial effects of this utility model are as follows: The ostomy bag provided by this utility model is used to contain the excrement flowing out of the patient's stoma. The excrement flows into the receiving cavity through the drainage hole. A drainage tube is provided at the bottom of the bag. When it is necessary to drain the excrement from the receiving cavity, the excrement naturally flows out through the drainage tube due to gravity. The switch valve on the drainage tube is used to control the opening and closing of the drainage tube. The state of the drainage tube can be controlled simply by rotating the switch valve. When drainage is not required, the bottom of the ostomy bag is kept closed. Compared with the disadvantages of the ostomy bag seal currently used in clinical practice, which is prone to loosening and leakage when the amount of excrement is large, the ostomy bag of this application greatly improves the patient's wearing comfort and improves work efficiency. Moreover, when switching the state of the drainage tube, there is no contact with the excrement. At the same time, the switch valve seals the drainage tube from the inside, so the excrement will not splash out when the drainage tube is closed, thus ensuring the cleanliness of the external environment. Attached Figure Description

[0018] The following will refer to the appendix. Figures 1-4 This section describes the features, advantages, and technical effects of exemplary embodiments of the present invention.

[0019] Figure 1 This is a front view of the ostomy bag in this utility model.

[0020] Figure 2 This is a schematic diagram of the back structure of the ostomy bag in this utility model;

[0021] Figure 3 for Figure 1 A partial sectional view of A in the middle;

[0022] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0023] In the diagram: 1. Bag body; 2. Adhesive part; 3. Receiving cavity; 4. Drain hole; 5. Drain pipe; 6. Switch valve; 7. Pressure relief valve; 8. Scale.

[0024] 51. Connecting part; 52. Protruding ring;

[0025] 61. Support rod; 62. Baffle plate; 63. Handle; 64. Seal; 65. Valve core; 66. Through hole. Detailed Implementation

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in further detail, but this is not intended to limit the scope of the present invention.

[0029] Example 1

[0030] like Figures 1 to 3 As shown, this embodiment discloses an ostomy bag, including a bag body 1 and an adhesive part 2 disposed on the bag body 1. The bag body 1 has a receiving cavity 3 for receiving excrement. The adhesive part 2 is disposed on the outer surface of the bag body 1 and has an excretion hole 4 that communicates directly with the receiving cavity 3. An excretion tube 5 is also disposed at the bottom of the bag body 1. The excretion tube 5 communicates with the receiving cavity 3 and the outside of the bag body 1. A switch valve 6 for controlling the opening and closing of the excretion tube 5 is disposed on the excretion tube 5. The switch valve 6 is integrally disposed with the excretion tube 5.

[0031] Specifically, in this application, the bag 1 is bonded to the patient's skin via the adhesive part 2, allowing the bag 1 to adhere to the patient's body. This eliminates the need for straps to secure the ostomy bag, thus preventing discomfort and constriction, and improving the patient's experience. The receiving cavity 3 is used to receive excrement flowing from the patient's stoma, while the drainage hole 4 is opposite to the stoma and houses the stoma. Excrement from the stoma flows into the receiving cavity 3 through the drainage hole 4. The drainage hole 4 prevents the stoma from being blocked, ensuring a ventilated environment and preventing bacterial growth caused by covering the stoma. The bottom is equipped with a drain pipe 5, which is located at the bottom of the bag body 1. When it is necessary to discharge the excrement in the receiving cavity 3, no operation of the bag body 1 is required. Due to gravity, the excrement will naturally flow out in the drain pipe 5. The switch valve 6 on the drain pipe 5 is used to control the opening and closing of the drain pipe 5. The switch valve 6 is located on the side wall of the drain outlet. The state of the drain pipe 5 can be controlled by simply rotating the switch valve 6. When switching the state of the drain pipe 5, it will not come into contact with the excrement. At the same time, the switch valve 6 closes the drain pipe 5 from the inside. Therefore, when the drain pipe 5 is closed, the excrement will not splash out, thus ensuring the cleanliness of the external environment.

[0032] In this embodiment, the switching valve 6 includes a support rod 61 disposed in the drain pipe 5, a baffle 62 is provided on the support rod 61, and a handle 63 is provided on the outside of the drain pipe 5, with one end of the handle 63 connected to the support rod 61.

[0033] Specifically, the support rod 61 is horizontally placed in the drain pipe 5, and both ends of the support rod 61 are rotatably connected to the inner wall of the drain pipe 5. The surface of the baffle 62 is in contact with the support rod 61, and the support rod 61 passes through the center of the surface of the baffle 62. The function of the baffle 62 is to block the inner hole of the drain pipe 5. By supporting the baffle 62, the drain pipe 5 is controlled to open and close. The support rod 61 is used to support the baffle 62, so that the baffle 62 is always located in the drain pipe 5, preventing the baffle 62 from being washed away and displaced due to the flow of excrement in the drain pipe 5, thus preventing the drain pipe 5 from losing its opening and closing function. The lever 63 on the outside of the drain pipe 5 is the driving component. One end of the lever 63 is connected to the support rod 61. Since the support rod 61 is located inside the drain pipe 5, it cannot be operated. Therefore, the lever 63 is set on the outside of the drain pipe 5, and the support rod 61 is driven to move by the lever 63.

[0034] The specific working principle is as follows: When it is necessary to block the drain pipe 5, rotate the lever 63. The lever 63 rotates around the connection with the support, which drives the support rod 61 to rotate. Usually, the rotation angle when the switch is closed is 90 degrees. After the lever 63 drives the support rod 61 to rotate, the baffle 62 is placed horizontally in the drain pipe 5, cutting off the connection between the drain pipe 5 and the outside, thereby blocking the drain pipe 5. If it is necessary to connect the drain pipe 5 with the outside, the steps are the same as above, except that the lever 63 can rotate 90 degrees or rotate 90 degrees in the opposite direction.

[0035] In this embodiment, the diameter of the baffle 62 is the same as the inner diameter of the drain pipe 5.

[0036] Specifically, the diameter of the baffle 62 cannot be less than or greater than the inner diameter of the drain pipe 5. If the diameter of the baffle 62 is greater than the inner diameter of the drain pipe 5, the baffle 62 will not be able to operate. After the baffle 62 is installed, its initial state will remain unchanged thereafter. The space inside the drain pipe 5 also does not allow the baffle 62 to operate.

[0037] When the diameter of the baffle 62 is smaller than the inner diameter of the drain pipe 5, the outer side of the baffle cannot perfectly match the inner diameter of the drain pipe 5 when it is necessary to block the drain pipe 5, leaving a gap. Excrement will leak out through the gap, thereby damaging the external environment, and the baffle 62 will also lose its intended function.

[0038] In this embodiment, the outer side of the baffle 62 is covered with a seal 64.

[0039] Specifically, in order to further ensure the sealing of the drain pipe 5 after the baffle 62 is sealed, a sealing element 64 is provided around the edge of the baffle 62. The sealing element 64 is made of rubber and is soft. When the drain pipe 5 is sealed by the baffle 62, the sealing element 64 can fill the gap between the baffle 62 and the drain pipe 5, thereby improving the sealing effect of the baffle 62.

[0040] In this embodiment, a connecting part 51 is provided on the side of the excretion pipe 5 away from the bag body 1. The connecting part 51 consists of multiple protruding rings 52 with diameters ranging from small to large.

[0041] Specifically, such as Figure 3 As shown, when the drain pipe 5 is connected to the external collection device, the external collection device is connected to the drain outlet through a pipe. In order to accommodate pipes of different sizes, the connecting part 51 is provided with a convex ring 52 of different sizes. The end of the pipe is sleeved with the convex ring 52, and the pipe and the convex ring 52 are interference-fitted to fix the pipe. It should be noted that the internal channel diameter of the drain pipe 5 remains unchanged, but the size of the external convex ring 52 is changed.

[0042] In another method of use, a device for collecting excrement is placed directly on the lower side of the discharge pipe 5. The opening of the excrement collection device is large, and the discharge pipe 5 is opened directly through the switch valve 6, so that the excrement flows directly into the excrement collection device through the discharge pipe 5.

[0043] In this embodiment, a pressure relief valve 7 is provided on the bag body 1.

[0044] Specifically, when excrement is placed in the receiving cavity 3, after a long period of storage, the excrement will produce a lot of gas, causing the bag 1 to expand. Subsequently, the bag 1 may expand and rupture. The pressure relief valve 7 installed on the bag 1 can discharge the generated gas to the outside, preventing the bag 1 from expanding and rupturing. At the same time, outside air can enter the interior of the bag 1 through the pressure relief valve 7, thereby ensuring that the inside of the bag 1 is clean and ventilated. The entry of fresh air can prevent the patient's stoma from being covered for a long time, which can lead to bacterial growth.

[0045] In this embodiment, the pressure relief valve 7 is located at the top of the bag body 1, and the pressure relief valve 7 connects the receiving cavity 3 and the outside.

[0046] Specifically, when the bag 1 is in operation, the excrement flowing from the patient's stoma slowly accumulates at the bottom of the receiving cavity 3. Since the pressure relief valve 7 is located at a lower position, when too much excrement accumulates, it will block the pressure relief valve 7, causing it to malfunction. However, placing the pressure relief valve 7 at the top of the bag 1 can prevent the excrement from blocking the pressure relief valve 7, ensuring that the pressure relief valve 7 can always function properly.

[0047] In this embodiment, a scale 8 is also provided on one side of the surface of the bag body 1.

[0048] Specifically, the scale 8 is set on the surface of the bag body 1 on the side opposite to the adhesive part 2. The scale 8 can be used to determine the volume of excrement in the bag body 1, which is convenient for medical staff to register and judge, and to determine whether the amount of patient excrement is normal.

[0049] Example 2

[0050] In this embodiment, the difference from the first embodiment is that the switching valve 6 includes a handle 63 disposed outside the drain pipe 5 and a valve core 65 disposed inside the drain pipe 5. The end of the valve core 65 is connected to the handle 63, the valve core 65 is disposed perpendicular to the drain pipe 5, and a through hole 66 is provided on the valve core 65.

[0051] Specifically, such as Figure 4 As shown, the two ends of the valve core 65 are rotatably connected to the drain pipe 5, allowing the valve core 65 to rotate within the drain pipe 5. It should be noted that the diameter of the valve core 65 must be larger than the inner diameter of the drain pipe 5. The valve core 65 blocks the drain pipe 5, while the through hole 66 on the valve core 65 connects the drain pipe 5 to the outside. Rotating the valve core 65 enables the opening and closing of the drain pipe 5. The lever 63 on the outside of the drain pipe 5 is used to drive the valve core 65 to rotate.

[0052] The specific working principle is as follows: Rotating the lever 63 by 90 degrees causes the valve core 65 to rotate synchronously by 90 degrees. The through hole 66 on the valve core 65 connects the drain pipe 5 to the outside, allowing the excrement to flow out. When it is necessary to disconnect the drain pipe 5 from the outside, simply continue to rotate the lever 63 to 90 degrees or rotate the lever 63 in the opposite direction to 90 degrees. This is simple and quick, and there will be no contact with the excrement, nor will it cause the excrement to splash.

[0053] In this embodiment, the diameter of the through hole 66 is the same as the inner diameter of the drain pipe 5, and the through hole 66 penetrates both sides of the valve core 65.

[0054] Specifically, if the diameter of the through hole 66 is smaller than the inner diameter of the drain pipe 5 when excreting waste, it will cause the waste to be discharged unsmoothly, resulting in blockage of the through hole 66. Therefore, in this embodiment, the diameter of the through hole 66 must be greater than or equal to the inner diameter of the drain pipe 5.

[0055] Meanwhile, the through hole 66 vertically penetrates the valve core 65, making the discharge flow more smoothly when the discharge flows in the through hole 66. If the through hole 66 is provided with a corner or curved surface, the discharge will not have enough kinetic energy when it flows to the corner or curved surface, resulting in blockage.

[0056] The other structures are the same as in Embodiment 1, and will not be described in detail in this embodiment.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0058] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. An ostomy bag, characterized in that: Includes a bag body (1) and an adhesive part (2) disposed on the bag body (1). The bag body (1) has a receiving cavity (3) for receiving excrement. The adhesive part (2) is disposed on the outer surface of the bag body (1) and the adhesive part (2) is provided with an excretion hole (4) that communicates directly with the receiving cavity (3). The bottom of the bag body (1) is also provided with a drain pipe (5), which connects the receiving cavity (3) and the outside of the bag body (1). A switch valve (6) for controlling the opening and closing of the drain pipe (5) is provided on the drain pipe (5), and the switch valve (6) is integrally provided with the drain pipe (5). The switching valve (6) includes a support rod (61) horizontally placed inside the drain pipe (5) and a lever (63) disposed outside the drain pipe (5). The two ends of the support rod (61) are rotatably connected to the inner wall of the drain pipe (5). The support rod (61) is provided with a baffle (62) for sealing the inner hole of the drain pipe (5). The support rod (61) passes through the center of the baffle (62). One end of the lever (63) is connected to the support rod (61). Alternatively, the switching valve (6) may include a lever (63) disposed on the outside of the drain pipe (5) and a valve core (65) disposed inside the drain pipe (5). The end of the valve core (65) is connected to the lever (63). The valve core (65) is disposed perpendicular to the drain pipe (5), and the valve core (65) is provided with a through hole (66) that penetrates both sides of the valve core (65).

2. The ostomy bag according to claim 1, characterized in that: The diameter of the baffle (62) is the same as the inner diameter of the drain pipe (5).

3. An ostomy bag according to claim 2, characterized in that: The outer side of the baffle (62) is covered with a seal (64).

4. The ostomy bag according to claim 1, characterized in that: The diameter of the through hole (66) is the same as the inner diameter of the drain pipe (5).

5. An ostomy bag according to claim 4, characterized in that: The drain pipe (5) is provided with a connecting part (51) on the side away from the bag body (1), and the connecting part (51) consists of multiple convex rings (52) arranged in ascending order of diameter.

6. An ostomy bag according to claim 5, characterized in that: The bag body (1) is equipped with a pressure relief valve (7).

7. An ostomy bag according to claim 6, characterized in that: The pressure relief valve (7) is located at the bottom of the bag body (1) and the pressure relief valve (7) connects the receiving cavity (3) and the outside.

8. An ostomy bag according to claim 1, characterized in that: The surface of one side of the bag (1) is also provided with a scale.

Citation Information

Patent Citations

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    CN206333992U