Passive fecal incontinence protector

Abstract

The utility model provides a passive big defecation incontinence is used the protector, specifically at medical care technical field. Aiming at traditional protector infection risk is high, cleaning efficiency is low, lacks the protection and the portability are insufficient and so on problem, the utility model provides a passive big defecation incontinence is used the protector, including the stoma bag, still includes;Negative pressure suction device is connected with the stoma bag bottom, is used for through negative pressure and is sucked from the stoma bag to the excrement, prevents the reflux and washes subassembly, and is connected with the stoma bag top, is used for to the perianal skin in stoma bag washes. The device has realized the fast collection of excrement, negative pressure suction and the multi -angle cleaning of perianal skin, and then reduces the infection risk, promotes patient comfort and alleviates the work burden of nursing personnel.

Description

Technical Field

[0001] This utility model relates to the field of medical and nursing technology, specifically to a passive fecal incontinence support device. Background Technology

[0002] Passive fecal incontinence refers to a patient's lack of awareness before defecation. These patients typically experience decreased sensory function or impaired intestinal storage function, resulting in the frequent and unpredictable expulsion of stool, which is usually watery or loose. This condition is common in severely ill patients, such as those with stroke sequelae, nerve damage, or those who are bedridden for extended periods, and it becomes a significant health challenge during their recovery.

[0003] Traditionally, fecal incontinence care has relied primarily on manual cleaning or the use of disposable absorbent products (such as adult diapers). However, these methods have significant limitations. First, frequent accumulation of excrement can lead to prolonged skin dampness, inducing complications such as bedsores and skin infections, severely impacting the patient's treatment progress and quality of life. Second, absorbent products often cannot effectively contain watery or loose stools, resulting in frequent spillage, increasing the workload of caregivers and reducing care efficiency. Furthermore, traditional care methods lack active cleaning and flushing capabilities, making it difficult to remove residual excrement in a timely manner, further exacerbating the risk of infection and skin damage.

[0004] While some medical excretory management devices, such as ostomy bags or negative pressure suction devices, exist on the market, these devices often focus on a single function, such as collection or suction, and fail to effectively combine flushing to maintain a clean environment. Especially for patients with passive fecal incontinence, current technology struggles to meet the comprehensive needs for flushing, portability, and hygiene management. Existing flushing devices typically rely on a single liquid, making it difficult to adjust the water-medication ratio and meet diverse cleaning and disinfection requirements. Furthermore, existing flushers lack backflow prevention mechanisms, easily leading to backflow of flushing fluid or excrement, increasing the risk of infection. Utility Model Content

[0005] To address the aforementioned problems of high infection risk, low cleaning efficiency, lack of backflow protection, and insufficient portability, this invention aims to provide a passive fecal incontinence support device. This device effectively collects excrement, performs negative pressure suction, and provides uniform rinsing of the perianal skin and the inner wall of the ostomy bag, while preventing backflow contamination, thus improving hygiene, safety, and ease of use.

[0006] The main idea of ​​the technical solution adopted in this utility model is to solve the nursing problem of passive fecal incontinence by designing a passive fecal incontinence care device that integrates an ostomy bag, a negative pressure suction device, and an anti-backflow flushing component. The ostomy bag is used to collect excrement. The bottom is connected to the negative pressure suction device, which uses a disposable medical suction tube and a medical bottle-type negative pressure suction device to quickly remove excrement. The top is connected to the anti-backflow flushing component, which uses a delivery tube, an anti-backflow flushing device, and a pressurizing mechanism to provide precise flushing. The anti-backflow design effectively prevents the backflow of flushing fluid and excrement, ensuring hygiene and safety. The pressurizing mechanism adopts a dual-chamber design with a storage bottle, containing water and medication respectively. Pressurized flushing is achieved by manually pushing the mechanism, ensuring that water and medication are used separately.

[0007] The technical objective of this utility model is achieved through the following technical solution:

[0008] A passive fecal incontinence support, including an ostomy bag, and further comprising;

[0009] A negative pressure suction device, connected to the bottom of the ostomy bag, is used to suction excrement out of the ostomy bag using negative pressure;

[0010] The anti-backflow flushing assembly connects to the top of the ostomy bag and is used to flush the perianal skin inside the ostomy bag.

[0011] To achieve the above technical solution, the anti-backflow flushing component includes a delivery pipe, the middle of which is connected to the top of the ostomy bag, and an anti-backflow flushing device is provided at the bottom of the delivery pipe and a pressurizing mechanism is provided at the top.

[0012] Furthermore, the anti-backflow flusher includes: a first connecting part connected to the end of the delivery pipe; a second connecting part connected to the lower part of the first connecting part, and the second connecting part having a funnel-shaped structure; and an anti-backflow valve elastically connected at the junction of the first connecting part and the second connecting part.

[0013] Furthermore, according to the above technical solution, the pressurizing mechanism includes a liquid storage bottle, the interior of which is divided into two independent chambers, left and right, by a partition structure; the bottom of each independent chamber is connected to the top of the delivery pipe through a liquid outlet.

[0014] Furthermore, each individual cavity within the storage bottle is equipped with a propulsion mechanism.

[0015] Furthermore, a liquid filling port is installed on the top of the mechanism.

[0016] By adopting the above technical solution, this utility model has the following technical effects:

[0017] By setting up a negative pressure suction device, using a disposable medical suction connection tube and a medical medicine bottle-type negative pressure suction device, the excrement in the ostomy bag can be quickly suctioned out, reducing the retention time of excrement and avoiding the risk of infection and pressure sores caused by prolonged skin contact with excrement. At the same time, the disposable suction connection tube design effectively reduces the possibility of cross-infection and improves the hygiene and safety of use.

[0018] By incorporating anti-backflow flushing components and a dual-chamber pressurization mechanism, precise flushing of the ostomy bag inner wall and perianal skin is achieved; the water-medication separation design takes into account both cleaning and disinfection needs, effectively improving cleaning efficiency, enhancing patient comfort, and reducing the workload of nursing staff. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.

[0020] Figure 1 This is a schematic diagram of the overall structure of a passive fecal incontinence support device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the negative pressure suction device of this utility model;

[0022] Figure 3 This is a schematic diagram of the suction connection tube of this utility model;

[0023] Figure 4 This is a schematic diagram of the anti-backflow flushing assembly of this utility model;

[0024] Figure 5 This is a schematic diagram of the pressurization mechanism of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the driving mechanism of this utility model;

[0026] Figure 7 This is a schematic diagram of the anti-backflow flushing device of this utility model;

[0027] Figure 8 This is a cross-sectional view of the anti-backflow flushing device of this utility model;

[0028] In the diagram, 1-Ostomy bag; 2-Negative pressure suction device; 21-Suction connection tube; 211-Conical connector; 22-Negative pressure suction device; 221-Butyl rubber bottle cap; 23-Negative pressure extraction assembly; 231-Air pump; 232-Air tube; 3-Anti-backflow flushing assembly; 31-Anti-backflow flushing device; 311-First connection part; 312-Second connection part; 313-Anti-backflow valve; 3131-Connecting rod; 3132-Elastic element; 3133-Anti-backflow ball; 32-Pressurization mechanism; 321-Reservoir bottle; 322-Pushing mechanism; 3221-Push-pull cap; 3222-Pushing column; 323-Inlet; 324-Separator; 33-Delivery tube. Detailed Implementation

[0029] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments, not all embodiments.

[0030] refer to Figure 1-8 This application discloses a passive fecal incontinence support device, including an ostomy bag 1, and further including: a negative pressure suction device 2, connected to the bottom of the ostomy bag 1, for sucking out excrement from the ostomy bag 1 by negative pressure; and an anti-backflow flushing component 3, connected to the top of the ostomy bag 1, for flushing the perianal skin inside the ostomy bag 1.

[0031] Specifically, the ostomy bag 1 is made of a flexible, waterproof material, such as medical-grade silicone or polyurethane film, and has a bag-like structure. The bottom plate usually has pre-set graduations for easy marking and cutting. At the center of the bottom plate, use a medical marker to mark the measured anal diameter, for example, 3 cm. Then, based on this diameter, draw a circular opening 1-2 cm larger than the anus, for example, a circular marking line with a diameter of 4-5 cm, ensuring the opening is large enough to accommodate the anus and leaves room to avoid compression.

[0032] It is worth noting that medical scissors should be used to cut along the circular markings drawn in step 2 to form the central opening of the ostomy bag 1 base plate. When cutting, the edges must be kept smooth to avoid burrs, ensuring no irritation occurs when it adheres to the skin. Fold the ostomy bag 1 base plate with the central opening cut along the longitudinal axis, making the fold symmetrical, with the fold line as the center line. In the folded state, a circular connecting seat should be placed at each of the top and bottom ends of the base plate, i.e., at the two ends of the fold line. The connecting seat is made of medical-grade polycarbonate, approximately 2cm in diameter and 0.5cm thick, with a smooth inner surface to avoid skin irritation.

[0033] Specifically, the anti-backflow flushing assembly 3 includes a delivery tube 33, the middle of which is connected to a circular connector at the top of the ostomy bag 1. A through-hole is formed in the center of the connector, matching the outer diameter of the delivery tube 33. An annular sealing groove is provided around the through-hole to accommodate an O-ring. The O-ring is made of medical-grade silicone to ensure waterproofing at the connection point.

[0034] Specifically, the delivery tube 33 is a medical-grade PVC flexible tube, approximately 30cm in length. A connecting connector is installed in the middle of the delivery tube 33. The connector is a cylindrical plastic part with a hollow inner structure, communicating with the inner cavity of the delivery tube 33. One end of the connector is fixed to the middle of the delivery tube 33 by heat fusion bonding, while the other end has external threads on its outer surface for mating with the ostomy bag 1 connector.

[0035] Preferably, the O-ring is installed into the annular sealing groove of the connector, ensuring the ring is aligned with the through hole. Then, the connector of the delivery tube 33 is aligned with the through hole of the connector at the top of the ostomy bag 1. The external thread of the connector is engaged with the internal thread of the connector by rotating clockwise approximately two turns to secure it. After connection, the O-ring forms a seal between the connector and the through hole, preventing fluid leakage. The mating length between the connector and the connector is 1 cm to ensure a secure connection.

[0036] like Figure 7 The bottom of the conveying pipe 33 is provided with an anti-backflow flusher 31, which includes a first connecting part 311, a second connecting part 312 and an anti-backflow valve 313.

[0037] Preferably, the first connecting part 311 has a cylindrical structure and is made of medical-grade polycarbonate material. Its upper end is fixed to the end of the delivery pipe 33 by a threaded connection, ensuring that the flushing fluid can flow into the anti-backflow flusher 31 through the delivery pipe 33. The inner wall of the first connecting part 311 is smooth to reduce liquid flow resistance.

[0038] Preferably, the second connecting part 312 has a funnel-shaped structure, also made of medical-grade polycarbonate material, and its upper end is integrally connected to the lower end of the first connecting part 311 by medical adhesive. The top diameter of the funnel-shaped structure is the same as that of the first connecting part 311, while the bottom diameter is enlarged. The funnel-shaped design facilitates the even distribution of the flushing solution to the perianal area and also facilitates the collection of residual solution after flushing.

[0039] Preferably, the anti-backflow valve 313 is elastically connected at the junction of the first connecting part 311 and the second connecting part 312 to control the unidirectional flow of the flushing fluid and prevent backflow.

[0040] Preferably, the anti-backflow valve 313 includes a connecting rod 3131, an elastic element 3132, and an anti-backflow ball 3133. The connecting rod 3131 is a slender metal rod, such as stainless steel, with one end fixed to the inner wall of the first connecting part 311 by medical adhesive, and the other end extending to the middle of the first connecting part 311.

[0041] Preferably, the elastic element 3132 is a miniature spring, one end of which is fixed to the end of the connecting rod 3131 by a miniature riveting, and the other end is bonded to the top of the anti-backflow ball 3133 by medical adhesive. The elastic element 3132 controls the opening and closing state of the anti-backflow ball 3133 by stretching or compressing.

[0042] Preferably, the anti-backflow ball 3133 has a spherical structure, is made of medical-grade silicone material, and is filled with medical-grade stainless steel microspheres. The weight of the anti-backflow ball 3133 can be determined through multiple tests based on actual conditions to ensure that it remains closed under the weight of the liquid in the delivery tube 33, preventing accidental opening. The diameter of the anti-backflow ball 3133 is slightly smaller than the channel diameter at the junction of the first connecting part 311 and the second connecting part 312. The anti-backflow ball 3133 is suspended at the junction by the elastic element 3132, and its bottom can completely cover the channel at the junction to form a seal.

[0043] When the flushing fluid enters the first connecting part 311 through the delivery pipe 33, the liquid pressure pushes the anti-backflow ball 3133 downward, stretching the elastic element 3132. At this time, the anti-backflow ball 3133 leaves the channel at the junction, allowing the flushing fluid to flow into the second connecting part 312 and be evenly sprayed onto the perianal area through the funnel-shaped structure, achieving cleaning.

[0044] When flushing stops or there is backflow pressure, the elastic element 3132 returns to its original shape, pulling the anti-backflow ball 3133 upward until its bottom completely fits the junction of the first connecting part 311 and the second connecting part 312, forming a seal and preventing feces or flushing fluid from flowing back into the delivery pipe 33.

[0045] Preferably, the pressurizing mechanism 32 is installed at the top of the delivery pipe 33, serving as the core pressure source for the anti-backflow flushing assembly 3. The pressurizing mechanism 32 includes a storage bottle 321, made of medical-grade polycarbonate, cylindrical in shape, approximately 10 cm high and 6 cm in diameter, with a total capacity of approximately 400 mL. The interior of the storage bottle 321 is divided into two independent chambers, each with a capacity of approximately 200 mL, by a vertical partition 324. The partition 324 is integrally injection molded and fits tightly against the inner wall of the storage bottle 321, ensuring liquid isolation between the two chambers.

[0046] Preferably, the bottom of the storage bottle 321 is designed with two independent outlets, located at the center of the bottom of the left and right cavities respectively. Each outlet has a diameter of 3mm, with external threads around its perimeter, a thread depth of 0.5mm, and a pitch of 1mm. The delivery tube 33 is a medical-grade PVC flexible tube with an inner diameter of 2.5mm, an outer diameter of 3mm, and a length of approximately 30cm. Its top branches into two tubes, each approximately 5cm long, with an internally threaded connector at the end. The internally threaded connector matches the external thread of the outlet. By rotating clockwise, the internally threaded connectors of the two branch tubes are engaged with the outlets at the bottom of the left and right cavities, completing the connection. An O-ring is provided at the connection point. The O-ring is made of medical-grade silicone, with an inner diameter of 2.8mm and an outer diameter of 3.2mm, and is installed in an annular groove on the outside of the outlet to ensure waterproofing at the connection point.

[0047] like Figure 5 Each independent cavity is equipped with a pushing mechanism 322, which includes a push-pull cover 3221 and a pushing column 3222. The push-pull cover 3221 is a manually sliding silicone cover with a diameter matching the inner diameter of the cavity (approximately 3 cm). The pushing column 3222 is a cylindrical medical silicone component, approximately 8 cm in length, which slides in a sealed manner against the inner wall of the cavity. The operator manually pushes the push-pull cover 3221, and the pushing column 3222 forces the liquid in the cavity (the left cavity contains physiological saline, and the right cavity contains antibacterial solution) into the corresponding outlet, which is then transferred to the main delivery tube 33 through the branch tube.

[0048] like Figure 6 The reservoir 321 has a filling port 323 at the center of its top. The filling port 323 is a circular opening, approximately 5mm in diameter, surrounded by a sterile rubber stopper secured by ultrasonic welding. The sterile rubber stopper is approximately 3mm thick, made of medical-grade butyl rubber, with a smooth surface and self-healing properties, allowing it to automatically close after insertion by a medical needle. A removable protective cap, made of polypropylene, approximately 1cm in diameter and 2mm thick, is attached to the top edge of the filling port 323 via a snap-fit ​​mechanism to prevent external contamination.

[0049] like Figure 2 The negative pressure suction device 2 includes a suction connection tube 21, a negative pressure suction device 22, and a negative pressure extraction assembly 23. The suction connection tube 21 is a disposable medical-grade suction connection tube made of medical-grade PVC material, approximately 50cm in length. The tube body has a flexible structure, a smooth surface, and an antibacterial coating to reduce bacterial growth. One end of the suction connection tube 21 is equipped with a tapered connector 211, with an outer diameter of approximately 6mm and an inner diameter consistent with the tube body. It fits the connector at the bottom of the ostomy bag 1 and is detachably installed via a threaded connection. The other end is also equipped with a tapered connector 211, which fits the bottle mouth structure of the negative pressure suction device 22. The disposable design ensures that it can be discarded after each use, avoiding cross-infection.

[0050] Specifically, the negative pressure aspirator 22 is a medical medicine bottle, and the negative pressure extraction assembly 23 includes an air pump 231 and an air tube 232. The negative pressure aspirator 22 is a medical medicine bottle made of medical-grade polycarbonate material, with a capacity of 500mL, a bottle height of 150mm, and a diameter of 80mm. The bottle mouth has a diameter of 20mm and is connected to a sealing cap via a thread. The cap has a suction interface for connecting a disposable medical suction connection tube 21. The bottle body is designed with transparent graduations for easy observation of the liquid volume.

[0051] Preferably, the negative pressure suction assembly 23 includes an air pump 231 and an air tube 232. The air pump 231 is a miniature electric air pump, which is fixed to the outside of the negative pressure suction device 22. The air tube 232 is a medical-grade silicone flexible tube, 200 mm in length, 6 mm in outer diameter, and 4 mm in inner diameter. One end is connected to the air outlet of the air pump 231 via a quick connector, and the other end is connected to the exhaust port on the cap of the negative pressure suction device 22 via a sealing connector to ensure airtightness.

[0052] Preferably, after the air pump 231 is started, air is drawn from the negative pressure suction device 22 through the air tube 232 to create a negative pressure environment. The negative pressure acts on the ostomy bag 1 through the suction connection tube 21, drawing excrement and residual flushing fluid into the negative pressure suction device 22. The air pump 231 is equipped with a one-way valve to prevent gas backflow and ensure stable negative pressure.

[0053] The workflow of this embodiment is as follows:

[0054] Measurement and Custom Manufacturing of Pocket 1 Base Plate: Measure the user's anal size and record the maximum diameter (e.g., 3cm). Mark a circular opening (e.g., 4-5cm) on the ostomy bag 1 base plate with a diameter 1-2cm larger than the anus. After cutting the center opening, fold it in half along the longitudinal axis, mark and cut an area with a diameter 2cm larger (e.g., 6cm). Finally, cut a semi-circular notch at the lower outer edge to ensure the base plate fits properly.

[0055] The bottom plate of the ostomy bag 1 is attached to the user's perianal skin, and the top adhesive ring is tightly fitted to the skin to ensure a seal and prevent leakage. The conical connector 211 of the suction connection tube 21 is inserted into the connector at the bottom of the ostomy bag 1. The Luer connector of the suction connection tube 21 is then inserted through a medical needle into the puncture hole of the butyl rubber cap 221 of the negative pressure suction device 22 to complete the connection.

[0056] The connecting joint in the middle of the delivery tube 33 is fixed to the connecting seat at the top of the ostomy bag 1 by thread. The anti-backflow flushing device 31 at the bottom of the delivery tube 33 is located inside the ostomy bag 1, and its top end is connected to the outlet of the storage bottle 321 of the pressurization mechanism 32 through a branch tube.

[0057] 200mL of physiological saline and 200mL of antibacterial solution are injected into the left and right chambers respectively through the inlet 323 at the top of the reservoir bottle 321. According to the flushing requirements, the operator manually pushes the sliding cap 3221 of the left chamber of the reservoir bottle 321, causing the pusher 3222 to force the physiological saline into the delivery tube 33. The liquid flows through the anti-backflow flusher 31 into the second connection part 312, and is sprayed out in a dispersed manner similar to a shower head through multiple flushing holes at the bottom, evenly flushing the inner wall of the ostomy bag 1 and the perianal skin. If disinfection is required, switch to the right chamber and push the antibacterial solution for flushing. During the flushing process, the anti-backflow valve 313 in the anti-backflow flusher 31 effectively prevents backflow of liquid, ensuring hygiene and safety. After flushing, repeat the negative pressure suction process to draw the remaining liquid into the negative pressure suction device 22.

[0058] It should be understood that the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A passive fecal incontinence support device, comprising an ostomy bag (1), characterized in that, Also includes; A negative pressure suction device (2) is connected to the bottom of the ostomy bag (1) and is used to suction excrement out of the ostomy bag (1) by negative pressure; The anti-backflow flushing component (3) is connected to the top of the ostomy bag (1) and is used to flush the perianal skin inside the ostomy bag (1); Among them, the anti-backflow flushing component (3) includes a delivery pipe (33), the middle part of which is connected to the top of the ostomy bag (1), and an anti-backflow flushing device (31) is provided at the bottom of the delivery pipe (33), and a pressurizing mechanism (32) is provided at the top. The pressurizing mechanism (32) includes a storage bottle (321). The inside of the storage bottle (321) is divided into two independent chambers, left and right, by a partition structure. The bottom of each independent chamber is connected to the top of the delivery pipe (33) through a liquid outlet. The right chamber contains antibacterial liquid.

2. A passive fecal incontinence support device according to claim 1, characterized in that, The backflow preventer (31) includes: The first connecting part (311) is connected to the end of the conveying pipe (33); The second connecting part (312) is connected to the lower part of the first connecting part (311), and the second connecting part (312) has a funnel-shaped structure; The anti-backflow valve (313) is elastically connected at the junction of the first connecting part (311) and the second connecting part (312).

3. A passive fecal incontinence support device according to claim 1, characterized in that, Each independent cavity within the storage bottle (321) is slidably connected to a push mechanism (322).

4. A passive fecal incontinence support device according to claim 3, characterized in that, The top of the push mechanism (322) is provided with a liquid inlet (323).

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