A backflow-preventing enterostomy enema device

By designing an anti-reflux enterostomy enema device, using an intestinal extension tube and injection mechanism, physiological saline is injected to create negative pressure, which solves the problems of fecal reflux and blockage, enabling smooth fecal discharge and promoting anal recovery.

CN119075058BActive Publication Date: 2026-04-03THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-12
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing technologies, feces can easily flow back from the enterostomy site to the anus, making recovery difficult. Traditional negative pressure ostomy bags are ineffective at preventing the backflow of solid feces and can easily block the intestines.

Method used

A backflow-preventing enterostomy enema device was designed, comprising an ostomy bag section and an enema section. The enema section enters the intestine through an intestinal extension tube and uses a one-way liquid outlet and a pressure injection mechanism to inject physiological saline for enema. Combined with a deformable pressure bag and a suspension block, a negative pressure effect is formed to prevent fecal backflow.

Benefits of technology

It effectively reduces fecal reflux and blockage. Through the design of the enema device, feces can be smoothly discharged from the enterostomy, reducing anal accumulation and improving recovery.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention belongs to the field of medical auxiliary device technology and provides an anti-reflux enterostomy enema device. The anti-reflux enterostomy enema device of this invention includes: an ostomy bag portion, which is detachably installed at the enterostomy; and an enema portion, which is disposed on the ostomy bag portion, penetrates the ostomy bag portion, and extends into the intestine; the enema portion includes an injection mechanism, an intestinal extension tube, and a one-way dispensing device; the injection mechanism is installed outside the ostomy bag portion; one end of the intestinal extension tube extends into the intestine, and the other end of the intestinal extension tube is connected to and communicates with the injection mechanism; the one-way dispensing device is installed on the end face of the intestinal extension tube and is located away from the injection mechanism; this device not only reduces the accumulation of fecal reflux towards the anus but also effectively avoids blockage; therefore, it is suitable for industry promotion.
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Description

Technical Field

[0001] This invention relates to the field of medical assistive devices, specifically to an anti-reflux enterostomy enema device. Background Technology

[0002] Patients who have undergone enterostomy surgery need to have their intestines and anus closed and kept still, so they need to have the stoma to drain their feces. However, since the stoma is usually located above the anus, the stoma, intestines and anus form a three-way passage. Although feces can be drained directly from the stoma, it is still impossible to avoid the feces falling into the direction of the anus and flowing back and accumulating in this direction, which affects the recovery of the anus.

[0003] The traditional way to prevent backflow is to use a negative pressure ostomy bag. However, in practice, for solid stools such as lumps or granules, a simple negative pressure ostomy bag is not very effective in preventing backflow and may even block the intestines.

[0004] Therefore, a device is needed to prevent feces from flowing back and accumulating towards the anus. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides an anti-reflux enterostomy enema device to solve the problem of fecal reflux and accumulation at the anus.

[0006] This invention provides an anti-reflux enterostomy enema device, comprising: an ostomy bag portion detachably installed at the enterostomy; and an enema portion disposed on the ostomy bag portion, penetrating the ostomy bag portion and extending into the intestine; the enema portion includes an injection mechanism, an intestinal extension tube, and a one-way liquid outlet; the injection mechanism is installed outside the ostomy bag portion; one end of the intestinal extension tube extends into the intestine, and the other end of the intestinal extension tube is connected to and communicates with the injection mechanism; the one-way liquid outlet is installed on the end face of the intestinal extension tube and is located away from the injection mechanism; the injection mechanism includes an injection column tube and a suspension block; the injection column tube communicates with the intestinal extension tube; the suspension block is suspended and installed inside the injection column tube, and liquid is injected into the injection column tube.

[0007] Furthermore, it also includes a fixing strap, which can be fixedly installed around the patient's waist; and both the ostomy bag and the injection mechanism can be detachably installed on the fixing strap. In practical applications, the purpose of this design is to fix the ostomy bag and the injection mechanism; of course, this design is a waist belt design, which is relatively conventional. If stability is required, a shoulder strap design can also be used. Conventional structures will not be described in detail here.

[0008] Furthermore, the ostomy bag includes a bottom ring and an ostomy bag; the bottom ring is disposed at the enterostomy opening; the ostomy bag is installed on the bottom ring. Ideally, a negative pressure bag should be used as the ostomy bag; however, for traditional ostomy bags, any bag that can reduce pressure is best; a common type is an ostomy bag with a one-way valve; the pressure decreases as the internal volume of the ostomy bag changes, meaning it appears to deflate more and more.

[0009] Furthermore, the injection mechanism also includes a fixed magnetic block, which is installed on the outer surface of the injection column tube and located on the top surface; the fixed magnetic block is magnetically connected to the suspension block. In practical applications, this design functions similarly to a switch, because in this device, the suspension block is a design reference similar to a valve core. The up-and-down movement of the suspension block in the injection column tube directly or indirectly causes the liquid to flow in the injection column tube; thus, as long as the suspension block is fixed, the liquid flow in the entire device stops. Therefore, the fixed magnetic block in this design is detachable, and the suspension block can attract or repel the fixed magnetic block; the most convenient is that the suspension block attracts the fixed magnetic block.

[0010] Furthermore, it also includes a deformable pressure bag; the injection tube has an upper inlet and a lower inlet; the upper inlet is connected to and communicates with the intestinal extension tube; the lower inlet communicates with the deformable pressure bag and injects liquid; wherein the deformable pressure bag is disposed in the ostomy bag. In practical application, the deformable pressure bag in this design is pre-injected with liquid, specifically physiological saline. The deformable pressure bag reaches its maximum volume under the influence of the liquid, and its volume continuously decreases as the injection machine is used, thus changing the pressure inside the ostomy bag and creating a secondary negative pressure effect (provided the ostomy bag itself is a negative pressure bag). This facilitates the expulsion of feces from the intestines. The deformable pressure bag is made of medical-grade silicone, which is non-toxic and harmless to the human body. The actual deformation process involves the following: first, a suspended block floats up and down in the injection column tube as the patient moves; then, the liquid in the injection column tube enters the intestinal extension tube through the upper opening; and then enters the intestine through the one-way outlet. At this point, the liquid in the injection column tube decreases, and the liquid in the connected deformable pressure bag is replenished, causing the deformable pressure bag to deform and shrink, ultimately reducing the volume inside the ostomy bag and creating negative pressure, thus facilitating the outflow of feces from the stoma.

[0011] Furthermore, the injection column tube also has a filling port, which is located on and communicates with the injection column tube; the injection column tube can communicate with an external liquid source through the filling port. In practical applications, this design features a threaded port for easy liquid injection; after injection, the filling port needs to be sealed to maintain a tight seal and prevent external pressure from communicating with the injection column tube.

[0012] Furthermore, the suspending block includes a main block and an abutting wheel; the main block has at least one rotating groove; the abutting wheel is rotatably mounted in the rotating groove, and the abutting wheel can abut against the inner wall of the injection column tube. In practical applications, the main block in this design is made of metal to attract the aforementioned fixed magnetic block. The main block is hollow, designed to achieve levitation and floating. The abutting wheel abuts against the inner wall of the injection column tube, effectively restraining the suspending block from moving along a trajectory.

[0013] As can be seen from the above technical solution, the beneficial effects of the anti-reflux enterostomy enema device provided by the present invention are as follows:

[0014] (1) The design adopted in this application is to reduce the phenomenon of dry fecal matter through the function of enema, so as to facilitate its flow out of the enterostomy; in actual use, the ostomy bag part of this design can be a negative pressure ostomy bag on the market; and the enema part is used for enema injection.

[0015] (2) Meanwhile, the enema section uses an intestinal extension tube to enter the intestine, and then uses a one-way liquid outlet to ensure that the liquid can only flow out of the intestinal extension tube and cannot flow into the intestinal extension tube from the intestine; the one-way liquid outlet can be a medical-grade one-way valve; or a medical one-way permeation membrane can also be used, of course, the medical one-way permeation membrane is still under experimentation.

[0016] (3) Furthermore, the design of the injection column tube and the suspension block in the injection mechanism is such that, after the patient wears the device, the suspension block moves with the patient's own movements, causing the liquid in the injection column tube to enter the intestinal extension tube and then flow into the intestine from the one-way outlet, thus achieving an enema effect. The liquid in the injection column tube is preferably commonly used medical saline. In this way, after the saline enters the intestine, it will stimulate the intestine and simultaneously soften fecal masses and particles, facilitating their discharge from the enterostomy and reducing reflux and blockage. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the description of the specific embodiments or prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a front view of an anti-reflux enterostomy enema device provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the ostomy bag section and enema section in this invention;

[0020] Figure 3 This is a schematic diagram of the suspended block structure in this invention;

[0021] Figure 4 This is a schematic diagram of the liquid flow in the enema section and a schematic diagram of the operation of the enema section when the suspended block moves from point A to point B after the fixed magnetic block is removed in this invention.

[0022] Figure label:

[0023] Ostomy bag section 1, bottom ring 11, ostomy bag 12, enema section 2, injection mechanism 21, intestinal extension tube 22, one-way liquid outlet 23, injection column tube 211, upper through port 2111, lower through port 2112, liquid inlet port 2113, suspension block 212, main block 2121, abutting wheel 2122, fixing magnetic block 213, fixing belt 3, deformable pressure bag 4, rotating groove 101. Detailed Implementation

[0024] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0025] The basic implementation examples are as follows: Figures 1 to 4 As shown:

[0026] Example 1:

[0027] like Figures 1-4 As shown in the figure, this embodiment provides an anti-reflux enterostomy enema device, which can solve the problem of fecal reflux and accumulation at the anus.

[0028] An anti-reflux enterostomy enema device includes: an ostomy bag portion 1, which is detachably installed at the enterostomy; and an enema portion 2, which is disposed on the ostomy bag portion 1, penetrates the ostomy bag portion 1, and extends into the intestine; the enema portion 2 includes an injection mechanism 21, an intestinal extension tube 22, and a one-way liquid outlet 23; the injection mechanism 21 is installed outside the ostomy bag portion 1; one end of the intestinal extension tube 22 extends into the intestine, and the other end of the intestinal extension tube 22 is connected to and communicates with the injection mechanism 21; the one-way liquid outlet 23 is installed on the end face of the intestinal extension tube 22 and is located away from the injection mechanism 21; the injection mechanism 21 includes an injection column tube 211 and a suspension block 212; the injection column tube 211 communicates with the intestinal extension tube 22; the suspension block 212 is suspended and installed inside the injection column tube 211, and liquid is injected into the injection column tube 211. The design employed in this application reduces the formation of hard, lumpy stools through an enema, facilitating their drainage from the enterostomy. In practical application, the ostomy bag 1 in this design can be a commercially available negative pressure ostomy bag 12. The enema section 2 is used for enema infusion. The enema section 2 uses an intestinal extension tube 22, which enters the intestine. A one-way outlet 23 ensures that liquid can only flow out of the intestinal extension tube 22, and not flow into the intestinal extension tube 22. This one-way outlet 23 can be a medical-grade single-sided tube. A valve can be used; alternatively, a medical one-way osmotic membrane can be used, although this one-way osmotic membrane is still under experimentation. The design of the injection column tube 211 and the suspension block 212 in the injection mechanism 21 is such that, after the patient wears the device, with the patient's movement, the suspension block 212 moves within the injection column tube 211, allowing the liquid to enter the intestinal extension tube 22 and then flow into the intestine through the one-way outlet 23, thus achieving an enema effect. The liquid in the injection column tube 211 is preferably commonly used medical saline. In this way, after the saline enters the intestine, it stimulates the intestine and simultaneously softens fecal masses and particles, facilitating their discharge from the enterostomy and reducing reflux and blockage.

[0029] To ensure the device is securely attached and can be worn by the patient for daily activities such as exercise, this embodiment also includes a fixing strap 3, which can be fixedly installed around the patient's waist. Both the ostomy bag 12 and the injection mechanism 21 can be detachably mounted on the fixing strap 3. In practical applications, the purpose of this design is to secure the ostomy bag 12 and the injection mechanism 21. While this is a waist belt design, which is relatively conventional, a shoulder strap design could also be used to ensure stability. The conventional structure will not be elaborated upon here.

[0030] In this embodiment, the ostomy bag 1 includes a bottom ring 11 and an ostomy bag 12; the bottom ring 11 is disposed at the enterostomy opening; the ostomy bag 12 is mounted on the bottom ring 11. Ideally, the ostomy bag 12 should be a negative pressure bag; however, any traditional ostomy bag 12 that can reduce pressure is best; a common type is an ostomy bag 12 with a one-way valve; the pressure decreases as the internal volume of the ostomy bag 12 changes, meaning it appears increasingly deflated.

[0031] Furthermore, to achieve controllable enema and determine the specific enema time period to avoid work disruptions caused by enemas during working hours, in this embodiment, the injection mechanism 21 further includes a fixed magnetic block 213. The fixed magnetic block 213 is installed on the outer surface of the injection column tube 211 and located on the top surface; the fixed magnetic block 213 is magnetically connected to the suspension block 212. In practical applications, this design functions similarly to a switch, because in this device, the suspension block 212 is a design reference similar to a valve core. The up-and-down movement of the suspension block 212 in the injection column tube 211 directly or indirectly causes the liquid flow in the injection column tube 211; thus, as long as the suspension block 212 is fixed, the liquid flow in the entire device stops; therefore, the fixed magnetic block 213 in this design is detachable, and the suspension block 212 can attract or repel the fixed magnetic block 213; the most convenient is that the suspension block 212 attracts the fixed magnetic block 213.

[0032] To better facilitate the formation of negative pressure within the ostomy bag 12, this embodiment also includes a deformable pressure bag 4. The injection tube 211 has an upper inlet 2111 and a lower inlet 2112. The upper inlet 2111 is connected to and communicates with the intestinal extension tube 22. The lower inlet 2112 communicates with the deformable pressure bag 4 and injects liquid. The deformable pressure bag 4 is placed inside the ostomy bag 12. In practical applications, the deformable pressure bag 4 in this design is pre-injected with liquid, which is physiological saline. The deformable pressure bag 4 has its largest volume under the action of the liquid, and its volume gradually decreases as the injection machine is used. This causes pressure changes within the ostomy bag 12, creating a secondary negative pressure effect (provided that the ostomy bag 12 itself uses a negative pressure bag) or a negative pressure effect. This facilitates the expulsion of feces from the intestines. Furthermore, the deformable pressure bag 4 is made of medical-grade silicone, which is non-toxic and harmless to the human body. Moreover, the actual deformation... The process begins with the suspension block 212 floating up and down in the injection tube 211 as the patient moves. The liquid in the injection tube 211 then enters the intestinal extension tube 22 through the upper opening 2111. It then enters the intestine through the one-way outlet 23. At this point, the liquid in the injection tube 211 decreases, and the liquid in the deformable pressure bag 4 connected to it will be replenished, causing the deformable pressure bag 4 to deform and become smaller. Ultimately, the volume inside the stoma bag 12 decreases, which will generate negative pressure and facilitate the outflow of feces from the stoma.

[0033] To facilitate reuse and liquid filling, in this embodiment, the injection column tube 211 also has a liquid filling port 2113, which is located on and communicates with the injection column tube 211. The injection column tube 211 can communicate with an external liquid source through the liquid filling port 2113. In practical applications, this design features a threaded port for easy liquid injection. After injection, the liquid filling port 2113 needs to be sealed to maintain a seal and prevent external pressure from communicating with the injection column tube 211.

[0034] To ensure the vertical floating trajectory of the suspension block 212, in this embodiment, the suspension block 212 includes a main block 2121 and an abutting wheel 2122. The main block 2121 has at least one rotating groove 101. The abutting wheel 2122 is rotatably installed in the rotating groove 101 and can abut against the inner wall of the injection column tube 211. In practical applications, the main block 2121 in this design is made of metal to attract the aforementioned fixed magnetic block 213. The main block 2121 is hollow to achieve levitation and floating. The abutting wheel 2122 abuts against the inner wall of the injection column tube 211, effectively restraining the suspension block 212 from moving along its trajectory.

[0035] In actual operation, first, the fixation strap 3 is put on, then physiological saline is injected through the infusion tube 2113, and the infusion column tube 211 is filled with liquid while the deformable pressure bag 4 expands to a non-deformable state. Then, the infusion tube 2113 is sealed. The deformable pressure bag 4 is inside the ostomy bag 12. Then, the ostomy bag 12 is connected to the base plate and fixed. The pressure in the ostomy bag 12 can be released before or after connection, depending on the model and function of the different negative pressure ostomy bag 12.

[0036] Next, follow the time period required for the enema; generally, it is in the morning or evening when defecation occurs; during this time period, the fixed magnetic block 213 can be removed; the user can continue with daily life and work activities, and after a period of time, feces and some fecal water will be actively discharged from the stoma until the bag is full;

[0037] Simultaneously, when enema is not required, the device is already in place. Simply install the aforementioned fixing magnet 213 on the outer surface of the injection column tube 211, causing the suspension block 212 to attract it or stop the suspension block 212 from moving. At this point, the enema can be stopped.

[0038] In summary, this anti-reflux enterostomy enema device is not only rationally designed but also simple to operate. It follows the patient's movements to allow saline solution to enter the intestines. Furthermore, it enables controlled enema, allowing the enema to be stopped midway. Therefore, this application can not only reduce the accumulation of fecal reflux towards the anus but also effectively prevent blockage. Thus, it is suitable for industry promotion.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A backflow-preventing enterostomy enema device, characterized in that, include: The ostomy bag portion is detachably installed at the enterostomy opening; and An enema unit is disposed on the ostomy bag portion, penetrates the ostomy bag portion, and extends into the intestine; The enema unit includes an injection mechanism, an intestinal extension tube, and a one-way liquid outlet; the injection mechanism is installed outside the ostomy bag; one end of the intestinal extension tube extends into the intestine, and the other end of the intestinal extension tube is connected to and communicates with the injection mechanism; the one-way liquid outlet is installed on the end face of the intestinal extension tube and is located away from the injection mechanism. The injection mechanism includes an injection column tube and a suspension block; the injection column tube is connected to the intestinal extension tube; the suspension block is suspended inside the injection column tube, and liquid is injected into the injection column tube; The injection mechanism further includes a fixed magnetic block, which is installed on the outer surface of the injection column tube and located on the top surface; the fixed magnetic block is magnetically connected to the suspension block; It also includes a deformable pressure bag; the injection tube has an upper inlet and a lower inlet; the upper inlet is connected to and communicates with the intestinal extension tube; the lower inlet communicates with the deformable pressure bag and injects liquid; wherein the deformable pressure bag is disposed in the ostomy bag; The suspension block includes a main block and an abutting wheel; the main block is provided with at least one rotating groove; the abutting wheel is rotatably installed in the rotating groove, and the abutting wheel can abut against the inner wall of the injection column tube.

2. The anti-reflux enterostomy enema device according to claim 1, characterized in that, Also includes: The fixation strap can be fixedly installed around the patient's waist; and both the ostomy bag and the injection mechanism can be detachably installed on the fixation strap.

3. The anti-reflux enterostomy enema device according to claim 1, characterized in that, The ostomy bag includes a bottom ring and an ostomy bag; the bottom ring is disposed at the enterostomy opening; the ostomy bag is installed on the bottom ring.

4. The anti-reflux enterostomy enema device according to claim 3, characterized in that, The injection column tube also has a liquid inlet, which is located on the injection column tube and communicates with it; the injection column tube can be connected to an external liquid source through the liquid inlet.

Citation Information

Patent Citations

  • Gastric lavage device capable of exhausting air in gastric lavage tube

    CN113289112A

  • Thoracic closed drainage device for pneumology department

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