A two-channel ostomy pouch

Abstract

The utility model provides a kind of double-channel ostomy bag, including by front side wall and rear side wall jointly enclosed and formed ostomy cavity's ostomy bag body;The adjacent side of the front side wall and rear side wall is respectively provided with the flow guide hole and the stoma hole communicated with ostomy cavity, and the in-vivo lead-out tube corresponding stoma hole is provided on the ostomy bag body and is inserted into ostomy cavity after flow guide hole.The double-channel ostomy bag, adopt the structure of elastic fastener cooperation detachable cylindrical support piece.When cylindrical support piece is inserted, elastic fastener expands and facilitates the plug-in of in-vivo lead-out tube;After pulling out cylindrical support piece, elastic fastener contracts and tightens in-vivo lead-out tube, to realize more convenient operation and more reliable sealing effect, effectively solve the deficiency of traditional connecting piece in use and sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a dual-channel ostomy bag. Background Technology

[0002] The prior application of this unit, publication number CN213250225U, describes a drainage bag. The first connecting part prevents the drainage fluid and exudate from wetting the patient's clothes or bed sheets, resulting in a better patient experience. Furthermore, by collecting the drainage fluid and exudate separately, it is convenient for medical staff to observe the form and flow rate of the drainage fluid and exudate.

[0003] The aforementioned connectors primarily rely on adhesive tape or metal sheets to seal the drainage tube to the ostomy bag. However, the use of adhesive tape presents several inconveniences. First, the tape wrapping process is cumbersome, requiring precise operation by the user to ensure a seal, which is particularly difficult for patients with limited mobility or lack of experience. Second, the sealing effect of adhesive tape is greatly affected by environmental factors; changes in humidity and temperature may cause the tape's adhesion to decrease, leading to seal failure. Furthermore, removing the tape can easily damage the surface of the ostomy bag, affecting its reusability. While metal sheets address some of these issues with adhesive tape, their rigid material properties limit their fit with the drainage tube, preventing a tight seal. Gaps can easily form due to friction or tube displacement during patient movement, leading to leakage risks. The rigidity of the metal sheet can also cause wear on the drainage tube, increasing patient discomfort and potentially causing tube damage. These limitations of traditional connectors not only affect the effectiveness of the ostomy bag but may also negatively impact patient health and experience. Utility Model Content

[0004] In view of the defects in the connector design of traditional dual-channel ostomy bags, this utility model effectively solves the above problems by optimizing the connector structure and adopting a design that combines elastic fasteners with detachable cylindrical support components.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A dual-channel ostomy bag includes an ostomy bag body formed by a front sidewall and a rear sidewall together enclosing an ostomy cavity; the adjacent sides of the front sidewall and the rear sidewall are respectively provided with a guide hole and an ostomy hole communicating with the ostomy cavity; the ostomy bag body is provided with an internal outflow tube that is inserted into the guide hole, extends into the ostomy cavity, and corresponds to the ostomy hole.

[0007] The front sidewall is provided with a connector that wraps around the outside of the internal drain tube at the corresponding drainage hole. The connector includes an elastic fastener fixed at one end to the front sidewall and a detachable cylindrical support inserted into the inside of the elastic fastener and located outside the internal drain tube. The insertion and removal action of the detachable cylindrical support causes the elastic fastener to expand elastically to insert the internal drain tube or to contract elastically to tighten the internal drain tube.

[0008] Furthermore, the elastic fastener has an initial state in which the front end is recessed due to the insertion and support of the detachable cylindrical support member, and a working state in which the front end is pulled out and clamped to the lead-out tube inside the body after the detachable cylindrical support member is pulled out.

[0009] Furthermore, the front end of the elastic fastener is provided with an elastic rubber ring that engages with a detachable cylindrical support member to pull the end of the elastic fastener inward.

[0010] Furthermore, the end of the elastic fastener is provided with a plastic ring that is integrally fixed to the front sidewall.

[0011] Furthermore, the elastic fastener is an elastic rubber tube.

[0012] Furthermore, the detachable cylindrical support is composed of at least two semi-open cylindrical tubes joined together.

[0013] Furthermore, the anterior or posterior sidewall has multiple protrusions on the side near the stoma body.

[0014] Furthermore, the rear sidewall away from the front sidewall is provided with an annular adhesive film corresponding to the periphery of the stoma hole, and multiple interlocking protective films are applied to the surface of the annular adhesive film.

[0015] Furthermore, it also includes a drainage bag A and a drainage tube A disposed on its top, the end of which is connected to the end of an in-body drainage tube.

[0016] Furthermore, the method also includes a drainage bag B and a drainage tube B disposed above it, with the upper part of the drainage tube B connected to the ostomy bag body.

[0017] The beneficial effects of the technical solution provided in this application are as follows:

[0018] 1. This dual-channel ostomy bag adopts a structure with elastic fasteners and a detachable cylindrical support. When the cylindrical support is inserted, the elastic fastener expands to facilitate the insertion of the internal drainage tube; after the cylindrical support is removed, the elastic fastener contracts to tighten the internal drainage tube, thereby achieving more convenient operation and a more reliable sealing effect, effectively solving the shortcomings of traditional connectors in terms of use and sealing performance.

[0019] 2. In its initial state, the insertion of the detachable cylindrical support supports the elastic fastener, causing its front end to be concave, facilitating the insertion of the internal drainage tube. This simplifies the traditional process of wrapping with tape or fixing with thin metal sheets, improving ease of use. When the detachable cylindrical support is removed, the front end of the elastic fastener is pulled out and tightened onto the internal drainage tube, forming a tight seal. This effectively prevents fluid leakage, ensuring the sealing and reliability of the ostomy bag. Furthermore, this sealing method is unaffected by environmental factors, extending the lifespan of the ostomy bag and improving the patient's experience. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view schematic diagram of the dual-channel ostomy bag of this utility model;

[0022] Figure 2 This is a rear view schematic diagram of the dual-channel ostomy bag of this utility model;

[0023] Figure 3 This is a rear view schematic diagram of the front side wall of this utility model;

[0024] Figure 4 This is a schematic diagram of the initial state of the connector of this utility model;

[0025] Figure 5 This is a schematic diagram of the working state of the connector of this utility model.

[0026] In the diagram: 10 Ostomy bag body, 11 Front side wall, 12 Rear side wall, 13 Drainage hole, 14 Ostomy port, 15 Internal drainage tube, 16 Protrusion, 17 Annular adhesive film, 18 Protective film, 19 Drainage bag A, 20 Connector, 21 Elastic fastener, 22 Detachable cylindrical support, 23 Plastic ring, 24 Elastic rubber ring, 30 Drainage bag B, 31 Drainage tube B. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Reference Figure 1-5 A dual-channel ostomy bag includes an ostomy bag body 10 formed by a front sidewall 11 and a rear sidewall 12 enclosing an ostomy cavity. The adjacent sides of the front sidewall 11 and the rear sidewall 12 are respectively provided with a drainage hole 13 and an ostomy port 14 communicating with the ostomy cavity. The ostomy bag body 10 is provided with an internal drainage tube 15 that extends into the ostomy cavity after being inserted into the drainage hole 13 and corresponds to the ostomy port 14. The front sidewall 11 is provided with a connector 20 that wraps around the external portion of the internal drainage tube 15 at the location corresponding to the drainage hole 13. The connector 20 includes an elastic fastener 21 fixed at one end to the front sidewall 11 and a detachable cylindrical support 22 inserted inside the elastic fastener 21 and located outside the internal drainage tube 15. The insertion and removal action of the detachable cylindrical support 22 causes the elastic fastener 21 to expand elastically to accommodate the internal drainage tube 15 or to contract elastically to tighten the internal drainage tube 15.

[0029] The elastic fastener 21 achieves flexible clamping of the internal outlet tube 15 through its own elastic deformation, which ensures sealing and avoids damage to the pipe caused by hard pressure. The detachable cylindrical support 22 serves as an auxiliary insertion and removal structure. When inserted, it pushes the elastic fastener 21 to expand outward to form a temporary channel, which facilitates the quick assembly of the internal outlet tube 15. After being pulled out, the elastic fastener 21 achieves stable clamping of the internal outlet tube 15 through its own rebound force, which combines convenient operation with long-term sealing reliability. When the detachable cylindrical support 22 is inserted into the inner side of the elastic fastener 21, its outer wall applies a radially outward thrust to the elastic fastener 21, causing the opening of the elastic fastener 21 to expand and form the insertion space for the inner lead-out tube 15. After the inner lead-out tube 15 is inserted, the detachable cylindrical support 22 is pulled out, and the elastic fastener 21 loses its external support force. Under the action of its own elastic restoring force, it contracts and tightens along the outer wall of the inner lead-out tube 15, forming an adaptive pressure seal. This simplifies the assembly process while ensuring a tight fit between the inner lead-out tube 15 and the connector 20.

[0030] In some embodiments, the elastic fastener 21 has an initial state in which its front end is concave when the detachable cylindrical support 22 is inserted and supported, and a working state in which its front end is pulled out and clamped to the internal outlet tube 15 after the detachable cylindrical support 22 is pulled out. The initial concave front end state of the elastic fastener 21 and the working state of clamping the internal outlet tube 15 form a dynamic fit. When the detachable cylindrical support 22 is inserted, the concave front end structure reserves an insertion channel for the internal outlet tube 15 through elastic deformation, reducing the insertion friction resistance. After the support 22 is pulled out, the front end automatically fits against the outer wall of the internal outlet tube 15 to form an annular sealing band. The sealing stability is enhanced by local stress concentration, avoiding the risk of local loosening or slippage caused by the overall uniform contraction of the elastic fastener 21. When the detachable cylindrical support 22 is inserted, its outer wall applies radial pressure to the front end of the elastic fastener 21, forcing the concave area at the front end to expand outward and wrap around the internal lead-out tube 15. At this time, the elastic potential energy of the elastic fastener 21 is stored in the gap between the support 22 and the internal lead-out tube 15. After the support 22 is pulled out, the concave area at the front end of the elastic fastener 21 loses external support and actively adheres to the surface of the internal lead-out tube 15 through material elastic rebound. The contact area between the front end and the tube wall increases, forming a gradient pressure distribution, thereby reducing assembly resistance and improving sealing durability.

[0031] In some embodiments, the front end of the elastic fastener 21 is provided with an elastic rubber ring 24 that, when inserted with the detachable cylindrical support 22, pulls the end of the elastic fastener 21 inward. The elastic rubber ring 24 enhances the dynamic deformation capability of the front end of the elastic fastener 21 through pre-compression stress. When the detachable cylindrical support 22 is inserted, the rubber ring 24 is pulled inward by the reverse tension generated by compression, forming a guiding contraction space and reducing the radial frictional resistance when the internal outlet tube 15 is inserted. After the support 22 is pulled out, the elastic restoring force of the rubber ring 24 causes the inwardly concave area of ​​the front end to actively conform to the outer wall of the internal outlet tube 15. Through local stress concentration, a gradient pressure distribution is formed, which not only prevents the sealing strip from slipping but also accommodates the slight axial displacement of the internal outlet tube 15. When the detachable cylindrical support 22 is inserted, its outer wall compresses the elastic rubber ring 24, causing it to deform circumferentially. The elastic potential energy stored in the rubber ring 24 is converted into an axial traction force on the front end of the elastic fastener 21, forcing the concave area at the front end to expand radially outward along the internal outlet tube 15, forming a gradually narrowing insertion channel. After the support 22 is pulled out, the rubber ring 24 generates a reverse torque due to elastic recovery, driving the concave area at the front end of the elastic fastener 21 to rebound axially along the internal outlet tube 15. At the same time, the circumferential contraction force acts on the tube wall, achieving a self-locking seal through the superposition effect of the contact surface friction force and elastic pressure.

[0032] In some embodiments, the end of the elastic fastener 21 is provided with a plastic ring 23 that is integrally fixed to the front sidewall 11. The plastic ring 23, through its integral fixed connection with the front sidewall 11, anchors the end of the elastic fastener 21 to the ostomy bag body 10, preventing displacement or warping deformation during the insertion and removal of the in-body drainage tube 15. This structure, by restricting the degree of freedom of the end of the elastic fastener 21, enhances its cooperative stress-bearing capacity with the front sidewall 11, avoids fatigue fracture of the elastic element due to repeated insertion and removal, and reduces the risk of leakage at the sealing interface caused by sudden changes in local stress. When the detachable cylindrical support 22 is inserted, the front end of the elastic fastener 21 expands and pulls the plastic ring 23 to generate pretension. The plastic ring 23 disperses the tension to the ostomy bag body 10 through its connection with the front side wall 11, forming an integral tensile structure. After the support 22 is pulled out, the constraint of the plastic ring 23 keeps the end of the elastic fastener 21 in a preset geometric shape, forming a continuous sealing line on the surface of the in-body drain tube 15. At the same time, the contact friction between the membrane and the tube wall suppresses the axial rebound fluctuation of the elastic fastener 21, ensuring that the sealing pressure is evenly distributed on the outer wall of the in-body drain tube 15.

[0033] In some embodiments, the elastic fastener 21 is an elastic rubber tube, which utilizes its high elastic modulus and resilience to achieve flexible clamping of the inner tube 15 through its own deformation; when the inner wall of the rubber tube contacts the outer wall of the inner tube 15, an adaptive sealing layer is formed through uniform radial pressure distribution, which can not only avoid tube wall indentation caused by hard materials, but also compensate for small displacements during long-term use through the material creep characteristics, thus maintaining dynamic sealing stability.

[0034] In some embodiments, the detachable cylindrical support 22 is composed of at least two semi-open cylindrical tubes joined together. The detachable cylindrical support 22, composed of at least two semi-open cylindrical tubes, reduces the frictional resistance at the contact surface with the elastic fastener 21 through its segmented structure, solving the problem of difficult removal caused by the annular wrapping of the integral support. The semi-open design allows individual cylindrical tubes to move independently, forming a misaligned gap during removal, reducing synchronous pulling on the elastic fastener 21, and avoiding the risk of wear on the outer wall of the internal lead-out tube 15 or tearing of the sealing interface due to the concentrated release of elastic rebound force. During insertion, multiple semi-open cylindrical tubes are aligned and spliced ​​along the axial direction of the internal lead-out tube 15 to form a complete annular support structure. The outer wall of the structure is uniformly compressed by the elastic fastener 21 to expand it. During extraction, each semi-open cylindrical tube is pulled out in stages along the radial direction, and an instantaneous gap is generated between adjacent cylindrical tubes. The local rebound force of the elastic fastener 21 is released through the gap, forming a gradient pressure attenuation. This ensures that the internal lead-out tube 15 is only subjected to local elastic indentation rather than continuous shear force during the segmented extraction process, thereby protecting the integrity of the tube wall and achieving damage-free extraction.

[0035] In some embodiments, the front sidewall 11 or the rear sidewall 12 is provided with multiple protrusions 16 on the side near the stoma body. When there is leakage pressure inside the stoma bag 10, the protrusions 16 act as support points to resist the tendency of the front sidewall 11 and the rear sidewall 12 to adhere, maintaining a small gap between the two walls and blocking the path of liquid seepage along the wall surface; at the same time, the relative positions of the protrusions 16, the drainage holes 13 and the stoma hole 14 form a directional flow guiding structure, guiding the leakage to be discharged only through the in vivo drainage tube 15, and preventing it from bypassing the protrusions 16 and overflowing from the stoma hole 14, thereby achieving double leakage protection.

[0036] In some embodiments, the rear sidewall 12, away from the front sidewall 11, is provided with an annular adhesive film 17 corresponding to the periphery of the stoma hole 14, and multiple interlocking protective films 18 applied to the surface of the annular adhesive film 17. The annular adhesive film 17 and the interlocking protective films 18 form a layered fixing structure, and the annular adhesive film 17 is gradually bonded by peeling off the protective films 18 in stages. The interlocking protective films 18 allow for partial removal as needed, exposing only part of the adhesive surface each time, solving the problem that traditional whole protective films are prone to misalignment and require repeated adjustments after being torn open at once, thereby improving the sealing accuracy and operational error tolerance of the ostomy bag 10 in contact with the skin. During use, peel off the splicing units of the protective film 18 piece by piece. After peeling off each unit, press the corresponding area of ​​the annular adhesive film 17 to make it adhere to the skin. The remaining protective film 18 acts as a temporary anti-adhesion barrier to keep the rest of the area clean. The discrete layout of the splicing units gradually transmits tension through local fixation, avoiding wrinkles or displacement of the annular adhesive film 17 due to overall peeling stress. Finally, the continuous adhesion of each unit forms a complete sealing ring, ensuring that the exudate is discharged only through the internal drainage tube 15.

[0037] In some embodiments, the system also includes a drainage bag A 19 and a drainage tube A 25 disposed on its top, the end of which is connected to the end of the internal drainage tube 15. It also includes a drainage bag B 30 and a drainage tube B 31 disposed above it, the upper part of which is connected to the ostomy bag body 10. The drainage fluid enters the drainage tube A 25 through the internal drainage tube 15 and is eventually collected in the drainage bag A 19; while the exudate accumulated in the ostomy bag body 10 flows into the drainage bag B 30 through the drainage tube B 31. This separate drainage design ensures that the two fluids do not mix, avoiding cross-contamination, and also facilitates the observation of their respective flow rates and properties, providing more accurate information for medical care.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-channel ostomy bag, comprising an ostomy bag body (10) formed by an anterior sidewall (11) and a posterior sidewall (12) together enclosing the ostomy cavity; characterized in that, The adjacent sides of the front sidewall (11) and the rear sidewall (12) are respectively provided with a guide hole (13) and a stoma hole (14) connected to the stoma body. The stoma bag body (10) is provided with an internal outflow tube (15) that is inserted into the guide hole (13) and extends into the stoma body and corresponds to the stoma hole (14). The front sidewall (11) is provided with a connector (20) that wraps around the inside outlet tube (15) at the corresponding flow hole (13). The connector (20) includes an elastic fastener (21) fixed at one end to the front sidewall (11) and a detachable cylindrical support (22) inserted into the inside of the elastic fastener (21) and located outside the inside outlet tube (15). The insertion and removal action of the detachable cylindrical support (22) causes the elastic fastener (21) to expand elastically to insert the inside outlet tube (15) or to contract elastically to tighten the inside outlet tube (15).

2. The dual-channel ostomy bag as described in claim 1, characterized in that, The elastic fastener (21) has an initial state in which the front end is recessed when the detachable cylindrical support (22) is inserted and supported, and a working state in which the front end is pulled out and clamped to the internal outlet tube (15) after the detachable cylindrical support (22) is pulled out.

3. The dual-channel ostomy bag as described in claim 2, characterized in that, The front end of the elastic fastener (21) is provided with an elastic rubber ring (24) that is inserted into a detachable cylindrical support (22) to pull the end of the elastic fastener (21) inward.

4. The dual-channel ostomy bag as described in claim 1, characterized in that, The end of the elastic fastener (21) is provided with a plastic ring (23) that is fixed integrally with the front sidewall (11).

5. The dual-channel ostomy bag as described in claim 1, characterized in that, The elastic fastener (21) is an elastic rubber tube.

6. The dual-channel ostomy bag as described in claim 1, characterized in that, The detachable cylindrical support (22) is composed of at least two semi-open cylindrical tubes joined together.

7. The dual-channel ostomy bag as described in claim 1, characterized in that, The anterior sidewall (11) or posterior sidewall (12) has multiple protrusions (16) on the side near the stoma body.

8. The dual-channel ostomy bag as described in claim 1, characterized in that, The rear sidewall (12) away from the front sidewall (11) is provided with an annular adhesive film (17) corresponding to the periphery of the ostomy hole (14) and a plurality of interlocking protective films (18) applied to the surface of the annular adhesive film (17).

9. The dual-channel ostomy bag as described in claim 1, characterized in that, It also includes a drainage bag A (19) and a drainage tube A (25) disposed on its top, the end of which is connected to the end of an in vivo outflow tube (15).

10. The dual-channel ostomy bag as described in claim 1, characterized in that, It also includes a drainage bag B (30) and a drainage tube B (31) disposed above it, the upper part of which is connected to the ostomy bag body (10).

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