An ostomy closed waste collection and cleansing device

Abstract

The application discloses an intestinal stoma closed waste liquid collecting and cleaning device and an operation method, and relates to the technical field of intestinal surgery medical equipment.The device comprises a soft intestinal stoma excretion connector, an intestinal stoma interface and an internal excretion pipe.The device further comprises a first three-way valve, an external excretion pipe, a flushing pipe and a second three-way valve.The first three-way valve and the second three-way valve each have three ports.Two ports of the first three-way valve are connected between a discharge port of the internal excretion pipe and an input port of the external excretion pipe.One end of the flushing pipe is connected to a third port of the first three-way valve, and the other end is connected to one port of the second three-way valve.A second port and a third port of the second three-way valve are a water inlet and a medicine inlet.The application has the following advantages: the external excretion pipe is directly connected to a closestool, excrement is completely and airtightly discharged, a three-way valve body integrates a sewage discharge and a flushing double waterway, tools do not need to be replaced, operation steps are simplified, and nursing is convenient and labor-saving.

Description

Technical Field

[0001] This invention relates to the field of medical equipment technology for intestinal surgery, specifically to a closed-loop waste fluid collection and cleaning device for enterostomy. Background Technology

[0002] In medical practice, due to severe intestinal disease or to complete surgery, it may be necessary to transcribe the terminal portion of the intestine. After surgery, the severed intestine must be connected to the outside to allow its contents to drain. To achieve this, a common procedure is a colostomy, a non-natural opening created in the abdominal wall to allow any point in the intestine to connect with the outside in a way that allows the drainage of intestinal contents (i.e., feces and gas). Because the terminal portion of the intestine is severed, the patient lacks voluntary control, necessitating the use of external devices to drain the intestinal contents.

[0003] To address these issues, ostomy bags are now used in patients undergoing enterostomy surgery. These bags connect directly to the stoma and are designed to collect freely leaking feces. (See attached image) Figure 1 As shown, the enterostomy drainage connector 2 is a rubber or transparent plastic product, ellipsoidal in shape, with an enterostomy interface 1 on one side. The enterostomy interface 1 is a hollow circular hole that can connect to a non-natural opening / stoma in the patient's abdominal wall. The enterostomy interface 1 has a sealing ring and a locking buckle to ensure a sealed connection between the enterostomy interface 1 and the stoma in the abdominal wall. The outlet of the internal drainage tube 3 at the lower end of the enterostomy drainage connector 2 is normally closed by the interface valve 10. Opening the interface valve 10 allows the patient to expel excrement and intestinal gas.

[0004] Chinese patent CN219983177U discloses a three-way ostomy bag. This ostomy bag adds a water inlet and extends the original drain outlet, forming a three-way ostomy bag, based on the existing two-way ostomy bag. Cleaning the ostomy bag does not require removing it from the abdomen. While sitting on the toilet, the person opens the seal of the drain outlet, lowers themselves between their legs, opens the water inlet seal, and flushes water in, directly flushing excrement and wastewater into the toilet, simultaneously cleaning the stoma and ostomy bag. This cleaning method is clean and efficient, solving the problems of patients undergoing intestinal diversion and restoring their dignity.

[0005] However, these enterostomy ports / enterostomy bags have several drawbacks that hinder patients' normal social integration, thus seriously impairing their quality of life. Patients with enterostomies after colorectal cancer surgery need to regularly empty their ostomy bags. Current procedures require directly opening the bag to empty it, which easily leads to splashing of waste, odor diffusion, and contamination of the bathroom environment. Suitable for: All enterostomy patients (including temporary and permanent stoma patients) wearing reusable open-ended ostomy bags who need to empty the bag of feces and intestinal fluid multiple times a day. Current routine procedure: The patient opens the bottom seal of the ostomy bag in the bathroom, holds the bag, and pours the waste into the toilet bowl. After emptying, the patient rinses the bag with bottled water from the opening, shakes the bag to clean the inside, and then pours the waste into the toilet again.

[0006] Traditional flushing relies solely on an external flushing pot, which cannot open the bottom of the ostomy bag, making it difficult to clean residual waste. The process is cumbersome and easily soils hands. When emptying, the bag collapses and has a small opening, allowing fecal matter to easily splash onto the toilet, floor, and hands, leaving a strong odor in the bathroom for a long time. Clean water can only be poured in through the bag opening, leaving waste in the folds at the bottom of the bag that cannot be cleaned, resulting in residual fecal matter and odor. Discharge and flushing are performed separately, requiring both hands to hold the ostomy bag continuously, which is strenuous for elderly patients and those who are weak after surgery.

[0007] Currently, there is a lack of integrated devices that can directly connect to the toilet and simultaneously complete sealed sewage discharge and bag flushing, which causes many inconveniences for clinical home care. Summary of the Invention

[0008] The first aspect of the present invention provides a closed-loop waste fluid collection and cleaning device for enterostomy, the device comprising: a flexible enterostomy discharge connector, an enterostomy interface and an internal discharge tube; the device further comprises a first three-way valve, an external discharge tube, a flushing tube and a second three-way valve; Both the first three-way valve and the second three-way valve have three ports. The two ports of the first three-way valve are respectively connected between the outlet of the inner drain pipe and the inlet of the outer drain pipe. One end of the flushing pipe is connected to the third port of the first three-way valve, and the other end is connected to one port of the second three-way valve. The second and third ports of the second three-way valve are the water inlet and the drug inlet, respectively.

[0009] As described in the first aspect of the invention, the enterostomy drain connector has an enterostomy interface on its side; the enterostomy interface is directly connected to the drain inlet of the internal drain tube.

[0010] As described in the first aspect of the invention, the first three-way valve includes two connection states: The first connection state is to directly connect the outlet of the inner drain pipe with the inlet of the outer drain pipe; at the same time, the third port of the first three-way valve is closed to the connection end of the flushing pipe. The second connection state is such that the outlet of the internal drain pipe is connected to the third port of the first three-way valve, and the flushing pipe is connected to the inlet.

[0011] As described in the first aspect of the invention, the second three-way valve includes two connection states: the third connection state is such that the inlet is connected to the flushing pipe; The fourth connection state connects the water inlet and the drug inlet to the third port of the first three-way valve.

[0012] The device as described in the first aspect of the invention comprises a soft enterostomy drainage connector, an external drainage tube, and a flushing tube made of soft, transparent plastic.

[0013] As described in the first aspect of the present invention, the first three-way valve and the second three-way valve include: a mechanical three-way valve or an electromagnetic three-way valve.

[0014] A second aspect of the present invention provides an operating method for a closed-loop waste fluid collection and cleaning device for an enterostomy, for operating the closed-loop waste fluid collection and cleaning device as described in any of the preceding descriptions, comprising the following operating steps: Step 1: Connect the enterostomy interface of the closed-loop waste fluid collection and cleaning device to the enterostomy in the patient's abdominal wall; put a waste bag on the outlet end of the external discharge tube; Step 2: Operate the first three-way valve to the first connection state and the second three-way valve to the fourth connection state; when the second three-way valve is in the fourth connection state, inject the drug from the drug interface to the water inlet side; Step 3: After the patient enters the toilet, remove the waste bag and allow the patient to defecate or pass gas. Step 4: Operate the second three-way valve to the third connection state; with the first three-way valve in the second connection state, inject cleaning water from the inlet to flush the inside of the colostomy closed waste fluid collection and cleaning device. Step 5: Operate the second three-way valve to the fourth connection state; the first three-way valve is in the first connection state, and put a new clean waste bag on the outlet end of the external discharge pipe.

[0015] The method as described in the second aspect of the present invention further includes: Step 6: Keep the first three-way valve in the first connection state and the second three-way valve in the fourth connection state; input the drug liquid used for intestinal administration or cleaning into the water bag of the three-way valve and the water inlet through the drug interface; put the second three-way valve in the third connection state; squeeze the water bag to inject the drug liquid into the flushing tube 9, remove the water bag, and connect the water inlet to the cleaning water source; Operate the first three-way valve to the second connection state, inject cleaning water from the inlet (7), and the cleaning water and medicine enter the enterostomy for flushing or remain in the intestine for a predetermined time.

[0016] The second three-way valve is operated to the fourth connection state; the first three-way valve is in the first connection state, and the medicine injected into the intestinal tract is discharged through the external discharge pipe (5); After draining the flushing fluid, put a new, clean waste bag (11) on the outlet end of the external drain pipe 5. As described in the second aspect of the present invention, step 4 includes the following sub-steps: Step 4.1: Operate the second three-way valve to the third connection state; so that the water inlet is connected to the flushing pipe, and the cleaning water or cleaning solution enters the flushing pipe; Step 4.2: Operate the first three-way valve to the second connection state, allowing cleaning water or cleaning solution to enter the flushing pipe and flush the inner drain pipe and surrounding area.

[0017] As described in the second aspect of the present invention, step 5 includes the following sub-steps: Step 5.1: Operate the second three-way valve to the fourth connection state; disconnect the inlet from the flushing pipe; Step 5.2: Operate the first three-way valve to the first connection state and drain the flushing fluid; Step 5.3: Put a new, clean waste bag over the outlet end of the external drain pipe.

[0018] The method of the present invention has the following advantages: 1. The main flow pipe connects directly to the toilet, ensuring a completely sealed discharge of waste, preventing splashing and toilet contamination, and effectively blocking the spread of odors; 2. The bottom of the ostomy bag, with its operable internal drainage tube, allows the flushing water to fully contact the inner wall of the bag, removing fecal residue and ensuring a more thorough cleaning; 3. The three-way valve body integrates sewage and flushing water paths, eliminating the need to change tools, simplifying operation, and making home care convenient and effortless; 4. The overall sealed structure reduces direct contact between dirt and hands, lowers the risk of cross-contamination during stoma care, and improves patient comfort.

[0019] 5. During the sewage discharge and rinsing process, enema or cleaning medications can be freely injected into the washing water.

[0020] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 A schematic diagram of a prior art enterostomy waste fluid collection and cleaning device; Figure 2 This is a schematic diagram of the direct discharge state of the closed-loop waste fluid collection and cleaning device for enterostomy according to the present invention; Figure 3 This is a schematic diagram of the flushing state of the closed-loop waste fluid collection and cleaning device for enterostomy according to the present invention; Figure 4 A schematic diagram of the closed collection state of the enterostomy closed waste fluid collection and cleaning device of the present invention.

[0022] 1. Enterostomy interface; 2. Enterostomy drainage connector; 3. Internal drainage tube; 4. First three-way valve; 5. External drainage tube; 6. Second three-way valve; 7. Water inlet; 8. Medication interface; 9. Flushing tube; 10. Interface valve; 11. Waste bag. Detailed Implementation

[0023] Traditional ostomy bags require opening the tail end to discharge waste, making direct, sealed flushing into the toilet impossible. This can lead to spillage, toilet contamination, and unpleasant odors. Conventional flushing methods struggle to open the bottom of the ostomy bag, resulting in residue buildup and poor cleaning. Furthermore, waste disposal and flushing require separate tools, making the process cumbersome and the overall experience unpleasant. This invention addresses these drawbacks in a single, integrated design, enabling sealed, direct flushing to the toilet, controllable opening of the bag's bottom, and reverse flushing for cleaning.

[0024] The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. However, those skilled in the art should understand that the embodiments described below are only for illustrating the present invention and should not be regarded as limiting the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The first aspect of the present invention provides a closed-loop waste fluid collection and cleaning device for enterostomy, the device comprising: a soft enterostomy discharge connector 2, an enterostomy interface 1, and an internal discharge tube 3; the device further comprises a first three-way valve 4, an external discharge tube 5, a flushing tube 9, and a second three-way valve 6; Both the first three-way valve 4 and the second three-way valve 6 have three ports; The two ports of the first three-way valve 4 are respectively connected between the outlet of the inner drain pipe 3 and the inlet of the outer drain pipe 5. One end of the flushing pipe 9 is connected to the third port of the first three-way valve 4, and the other end is connected to one port of the second three-way valve 6. The second and third ports of the second three-way valve 6 are the water inlet 7 and the drug inlet 8.

[0026] As described in the first aspect of the invention, the enterostomy drain connector 2 is provided with an enterostomy interface 1 on its side; the enterostomy interface 1 is directly connected to the drain inlet of the internal drain tube 3.

[0027] As described in the first aspect of the invention, the first three-way valve 4 includes two connection states: The first connection state is to directly connect the outlet of the inner drain pipe 3 with the inlet of the outer drain pipe 5; at the same time, the third port of the first three-way valve 4 is closed to the connection end of the flushing pipe 9. The second connection state is such that the outlet of the internal drain pipe 3 is connected to the third port of the first three-way valve 4, and the flushing pipe 9 is connected to the inlet 7.

[0028] Example 1

[0029] As attached Figure 2-4 As shown, the present invention is a closed-loop waste fluid collection and cleaning device for enterostomy, including a conduit with multiple three-way valves. The device comprises four core components: 1. External drainage tube: Wraps tightly around the bottom opening of the ostomy bag, sealing it to prevent leakage of fluid and odor; 2. An elastic inner core with an external rotary switch that can open the lower end of the internal drainage tube: After rotating the switch, the inner core opens outward, opening the bottom of the collapsed ostomy bag. 3. Three-way valve body: Two water paths, with the lower pipe directly connected to the toilet for sewage discharge, and the flushing pipe 9 can be connected to external tap water for flushing; 4. Multiple independent control switches: Each switch controls the sewage discharge path and flushing water path separately, and can be opened and closed independently. When opened and closed according to the operating steps of this invention, it can ensure that sewage and odors do not leak out.

[0030] Complete two-step usage process of this invention Process 1: Closed-loop sewage discharge Place the waste bag over the bottom of the ostomy bag, open the drain valve on the lower side of the three-way valve, and close the side flushing water path. The excrement inside the bag flows directly into the toilet through the tube. The bag and tube are sealed throughout the process, with no splashing or odor leakage.

[0031] Step 2: Backwash inside the bag Close the three-way drain valve, rotate the outer switch of the tubing to open the bottom inner core of the ostomy bag, open the side flushing water channel, and clean water will flush the inner wall folds of the ostomy bag from bottom to top to clean away residual dirt; after flushing, open the drain valve again to discharge the sewage into the toilet. The whole operation does not require removing the ostomy bag.

[0032] Traditional tools can only allow water to enter from the top of the ostomy bag for cleaning, and cannot be directly discharged into the toilet in a sealed manner; this device integrates a sealed sewage discharge and a bottom-opening reverse flushing function, solving all problems of pollution, odor, incomplete cleaning, and cumbersome operation in one go.

[0033] As described in the first aspect of the invention, the second three-way valve 6 includes two connection states: the third connection state is such that the inlet 7 is connected to the flushing pipe 9; The fourth connection state connects the water inlet 7 and the drug inlet 8 to the third port of the first three-way valve 4.

[0034] The device as described in the first aspect of the invention, the soft enterostomy drain connector 2, the external drain tube 5, and the flushing tube 9 are made of soft, transparent plastic.

[0035] As described in the first aspect of the present invention, the first three-way valve 4 and the second three-way valve 6 include: a mechanical three-way valve or an electromagnetic three-way valve.

[0036] A second aspect of the present invention provides an operating method for a closed-loop waste fluid collection and cleaning device for an enterostomy, for operating the closed-loop waste fluid collection and cleaning device as described in any of the preceding descriptions, comprising the following operating steps: Step 1: Connect the enterostomy port 1 of the enterostomy closed waste fluid collection and cleaning device to the enterostomy on the patient's abdominal wall; put a waste bag 11 on the outlet end of the external discharge tube 5; Step 2: Operate the first three-way valve to the first connection state and the second three-way valve to the fourth connection state; Step 3: After the patient enters the toilet, remove the waste bag 11 to allow the patient to defecate or pass gas. Step 4: Operate the second three-way valve to the third connection state; with the first three-way valve in the second connection state, inject cleaning water from the inlet 7 to flush the inside of the colostomy closed waste fluid collection and cleaning device. Step 5: Operate the second three-way valve to the fourth connection state; the first three-way valve is in the first connection state, and put a new clean waste bag 11 on the outlet end of the external discharge pipe 5.

[0037] As described in the second aspect of the present invention, step 2 includes the following sub-steps: When the second three-way valve is in the fourth connection state, the drug is injected from the drug interface to the inlet 7 side.

[0038] As described in the second aspect of the present invention, step 4 includes the following sub-steps: Step 4.1: Operate the second three-way valve to the third connection state; so that the water inlet is connected to the flushing pipe 9, and the cleaning water or cleaning solution enters the flushing pipe 9; Step 4.2: Operate the first three-way valve to the second connection state, allowing cleaning water or cleaning solution to enter the flushing pipe 9 to flush the inner drain pipe and surrounding area.

[0039] As described in the second aspect of the present invention, step 5 includes the following sub-steps: Step 5.1: Operate the second three-way valve to the fourth connection state; disconnect the connection 1 between the water inlet 7 and the flushing pipe 9; Step 5.2: Operate the first three-way valve to the first connection state and drain the flushing fluid; Step 5.3: Put a new, clean waste bag 11 on the outlet end of the external discharge pipe 5.

[0040] This is a schematic diagram of the internal valve structure; the enlarged detail on the right shows the valve morphology. By rotating an external knob that links to the internal multi-valve structure, the bag expands outwards, opening the soft, collapsed bottom of the ostomy bag. This ensures that the flushing water flow thoroughly rinses the inner wall of the bag, resolving the issue of dirt residue remaining in the bag's folds.

[0041] Traditional tools can only allow water to enter from the top of the ostomy bag for cleaning, and cannot be directly discharged into the toilet in a sealed manner; this device integrates a sealed sewage discharge and a bottom-opening reverse flushing function, solving all problems of pollution, odor, incomplete cleaning, and cumbersome operation in one go.

[0042] Example 2

[0043] This invention can both flush the patient's enterostomy bag through operational steps and administer medication or cleanse the intestine within the enterostomy through set operational steps. The steps are as follows: Keep the first three-way valve in the first connection state and the second three-way valve in the fourth connection state; input the drug liquid for performing intestinal administration or cleaning into the water bag of the three-way valve and the water inlet through the drug interface; put the second three-way valve in the third connection state; squeeze the water bag to inject the drug liquid into the flushing pipe 9, remove the water bag, and connect the water inlet to the cleaning water source.

[0044] Operate the first three-way valve to the second connection state, inject cleaning water from the inlet 7, and the cleaning water and medicine enter the enterostomy for flushing or remain in the intestine for a predetermined time.

[0045] The second three-way valve is operated to the fourth connection state; the first three-way valve is in the first connection state, and the medicine injected into the intestinal tract is discharged through the external discharge pipe 5.

[0046] After draining the flushing fluid, put a new, clean waste bag 11 on the outlet end of the external drain pipe 5.

[0047] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A closed-loop waste fluid collection and cleaning device for enterostomy, the device comprising: The device comprises a soft enterostomy drain connector (2), an enterostomy interface (1), and an internal drain tube (3); characterized in that the device further comprises a first three-way valve (4), an external drain tube (5), a flushing tube (9), and a second three-way valve (6); Both the first three-way valve (4) and the second three-way valve (6) have three ports; The first port and the second port of the first three-way valve (4) are respectively connected between the outlet of the inner drain pipe (3) and the inlet of the outer drain pipe (5). One end of the flushing pipe (9) is connected to the third port of the first three-way valve (4), and the other end of the flushing pipe (9) is connected to the first port of the second three-way valve (6). The second and third ports of the second three-way valve (6) are the water inlet (7) and the drug inlet (8).

2. The apparatus as claimed in claim 1, characterized in that, The enterostomy interface (1) is provided on the side of the enterostomy drain connector (2); the enterostomy interface (1) is directly connected to the drain inlet of the internal drain tube (3).

3. The apparatus as described in claim 2, characterized in that, The first three-way valve (4) has two connection states: The first connection state is to make the outlet of the inner drain pipe (3) directly connected to the inlet of the outer drain pipe (5); at the same time, the third port of the first three-way valve (4) is closed to the connection end of the flushing pipe (9); The second connection state is such that the outlet of the internal drain pipe (3) is connected to the third port of the first three-way valve (4), and the flushing pipe (9) is connected to the inlet (7).

4. The apparatus as described in claim 2, characterized in that, The second three-way valve (6) includes two connection states: a third connection state and a fourth connection state. The third connection state is to connect the water inlet (7) with the flushing pipe (9). The fourth connection state connects the water inlet (7) and the drug inlet (8) to the third port of the first three-way valve (4).

5. The apparatus as claimed in claim 1, characterized in that, When the water inlet (7) and the drug inlet (8) are connected, they are used to inject enema drugs or cleaning drugs into the washing water.

6. The apparatus as claimed in claim 1, characterized in that, The first three-way valve (4) and the second three-way valve (6) include: a mechanical three-way valve or an electromagnetic three-way valve.

7. A method for operating a closed-loop waste fluid collection and cleaning device for an enterostomy, used to operate the closed-loop waste fluid collection and cleaning device as described in any one of claims 1-6, characterized in that, The following steps are included: Step 1: Connect the enterostomy interface (1) of the enterostomy closed waste fluid collection and cleaning device to the enterostomy on the patient's abdominal wall; put a waste bag (11) on the outlet end of the external discharge tube (5). Step 2: Operate the first three-way valve to the first connection state and the second three-way valve to the fourth connection state; when the second three-way valve is in the fourth connection state, inject the drug from the drug interface to the inlet (7) side; Step 3: After the patient enters the toilet, remove the waste bag (11) and allow the patient to defecate or pass gas; Step 4: Operate the second three-way valve to the third connection state and the first three-way valve to the second connection state, and inject cleaning water from the inlet (7) to rinse the inside of the stomach closed waste liquid collection and cleaning device; Step 5: Operate the second three-way valve to the fourth connection state and the first three-way valve to the first connection state, and put a new clean waste bag (11) on the outlet end of the external discharge pipe (5).

8. The method as described in claim 7, characterized in that, Further includes: Step 6: Keep the first three-way valve in the first connection state and the second three-way valve in the fourth connection state; The drug liquid used for intestinal administration or cleaning is fed into the water bag of the three-way valve and water inlet through the drug interface; the second three-way valve is in the third connection state; the water bag is squeezed to inject the drug liquid into the flushing tube 9, the water bag is removed, and the water inlet is connected to the cleaning water source; Operate the first three-way valve to the second connection state, inject cleaning water from the inlet (7), and the cleaning water and medicine enter the enterostomy for flushing or remain in the intestine for a predetermined time; The second three-way valve is operated to the fourth connection state; the first three-way valve is in the first connection state, and the medicine injected into the intestinal tract is discharged through the external discharge pipe (5); After draining the flushing fluid, put a new, clean waste bag (11) over the outlet end of the external drain pipe 5.

9. The method as described in claim 7, characterized in that, Step 4 includes the following sub-steps: Step 4.1: Operate the second three-way valve to the third connection state; so that the water inlet (7) is connected to the flushing pipe (9), and the cleaning water or cleaning solution enters the flushing pipe (9); Step 4.2: Operate the first three-way valve to the second connection state, allowing cleaning water or cleaning solution to enter the flushing pipe (9) to flush the inner drain pipe and surrounding area.

10. The method as described in claim 7, characterized in that, Step 5 includes the following sub-steps: Step 5.1: Operate the second three-way valve to the fourth connection state; disconnect the connection between the inlet (7) and the flushing pipe (9); Step 5.2: Operate the first three-way valve to the first connection state and drain the flushing fluid; Step 5.3, put a new, clean waste bag (11) on the outlet end of the external drain pipe (5).

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