CN113456332A

CN113456332A - Residue removing structure suitable for ostomy bag

Info

Publication number: CN113456332A
Application number: CN202110742063.4A
Authority: CN
Inventors: 韩琳; 吕琳; 苏茜; 苗丽珍
Original assignee: GANSU PROVINCIAL HOSPITAL
Current assignee: GANSU PROVINCIAL HOSPITAL
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-10-01
Anticipated expiration: 2041-06-30
Also published as: CN113456332B

Abstract

The present invention relates to a residue removing structure suitable for an ostomy bag, comprising: the ostomy bag is internally provided with a through pipe; the drainage device comprises a through pipe, a drainage channel, at least one length element, a plurality of first convex bodies and a second convex body, wherein the drainage channel is arranged on the through pipe, the length element is arranged between the end part of the through pipe and the drainage channel, the surface of the length element is provided with a plurality of first convex bodies at intervals, and the part of the first convex bodies, which protrudes out of the surface of the length element, is connected with the second convex bodies protruding along the length extension direction of the length element. By the arrangement, the pasty excrement can be divided by the first convex bodies at intervals and is trapped between two adjacent first convex bodies, and the flowing speed of liquid can be at least blocked. The arrangement of the second convex bodies further increases the obstruction of liquid passing, can weaken the capacity of liquid accumulation, and further increases the time of trapped liquid, so that the liquid can be fully hydrated and softened into pasty excrement.

Description

Residue removing structure suitable for ostomy bag

Technical Field

The invention relates to the technical field of medical instruments, in particular to a residue removing structure suitable for an ostomy bag.

Background

Rectal cancer is one of digestive tract malignant tumors and has extremely high incidence rate. Currently, the Miles procedure is the primary method for clinical treatment of rectal cancer, requiring resection of the rectal anal canal and permanent colostomy. In order to avoid stoma complications and psychological pressure after operation, the patient needs to be irrigated through the stoma to promote defecation to be regular, so that irregular defecation stimulation and skin pollution around the stoma can be avoided; can also reduce intestinal tract exhaust, and relieve or eliminate odor; can also avoid wearing the ostomy bag for a long time and reduce the complications of the stoma.

Ostomy irrigation requires an ostomy bag or similar receptacle for storing the excreta, however when discharging the excreta from the ostomy bag, there may be a portion of the residue that is not easily discharged, and it is desirable that the ostomy bag or similar receptacle for storing the excreta can be reused after washing and sterilization for reasons of cost saving and burden reduction for the patient. For example, chinese patent publication No. CN110169857A discloses a portable foldable electric ostomy bag flushing device, which includes an ostomy bag body provided with an electric cleaning mechanism for cleaning the ostomy bag body. The electric cleaning mechanism comprises a water tank and an electric flushing part. The electric washing part comprises a water pump, a switch and a washing head. This patent document proposes to improve the flushing effect by means of an electric cleaning mechanism. However, the electric washing mechanism is complicated in structure, and the washing method is not considered to be inferior in washing effect of residual pasty excreta in the ostomy bag.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents when making the present invention, but the space is not limited to the details and contents listed in the above, however, the present invention is by no means free of the features of the prior art, but the present invention has been provided with all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

Disclosure of Invention

In view of the deficiencies of the prior art, the present invention provides a residue removing structure for an ostomy bag, comprising: the ostomy bag is internally provided with a through pipe; a through duct provided with a drainage channel. At least one length element is arranged between the end of the through tube and the drainage channel. A plurality of first convex bodies are arranged on the surface of the length element at intervals, and the parts of the first convex bodies, which protrude out of the surface of the length element, are connected with second convex bodies protruding along the length extension direction of the length element. The beneficial effect who reaches through this setting mode is:

for stoma irrigation, it is generally necessary to insert a balloon catheter into the stoma and inject the irrigation solution into the bowel. To prevent leakage, a closed passage, such as a tube, is created to provide a passage for insertion of the balloon catheter. However, the pasty feces contained in the excrement is liable to stick to the inner wall of the duct, and from the viewpoint of cost saving and reduction in burden on the patient, it is desirable that part or all of the elements of the stoma washing device be reusable, and therefore, it is necessary to remove the pasty feces. The surface of the length element according to the invention is not smooth, but when the pasty faeces flow along the length element with the drainage liquid, the pasty faeces will be divided into different segments by the spaced first protrusions and be trapped between two adjacent first protrusions. When the flow rate of the excreted liquid is reduced, or when the liquid is injected through the balloon catheter to soften and hydrate the pasty feces again, the relatively sparse spacing of the plurality of first protrusions at least obstructs the flow rate of the liquid. Specifically, the liquid can only pass through the first convex bodies when the liquid accumulates for a certain volume, part of the liquid falls into the space between two adjacent first convex bodies, but the liquid can not flow at the moment, and the liquid can only flow when the subsequent liquid accumulates for increasing the volume again and can be contacted with the liquid between two adjacent first convex bodies. The provision of the second protrusions serves to further increase the resistance to the passage of liquid, and the second protrusions serve to weaken the liquid accumulation capacity. The liquid needs to be combined with the subsequently flowing liquid to increase the volume so as to be contacted with the liquid between two adjacent first convex bodies for merging and flowing, and the arrangement of the second convex body prevents the accumulated liquid from being contacted with the liquid between two adjacent first convex bodies, so that the time of the trapped liquid is further increased, and the liquid can be fully hydrated and softened into pasty excrement.

The present invention also provides a residue removing structure suitable for use in an ostomy bag comprising a through tube deployed within the ostomy bag. Inside the through pipe is arranged a length element for removing the residue. A plurality of first protrusions are spaced apart on a surface of the length member for partitioning viscous residue and at least partially entrapping liquid. The second convex body is arranged on one side of the first convex body and extends along the length extending direction of the length element to prevent the liquid on the two sides of the first convex body from merging, so that the time for trapping the liquid is increased.

According to a preferred embodiment, the first plurality of lugs are spaced apart from one another by a distance at least twice as long as the first lug length.

According to a preferred embodiment, the length of the second spur is at least more than one third and less than one half of the length of the first spur.

According to a preferred embodiment, the through-tube is arranged in the ostomy bag in such a way that it can penetrate the ostomy bag and be connected to the open ports at both ends of the ostomy bag. The through tube can be inserted by a balloon catheter. One end of the air bag catheter is connected with the infusion tube, and the other end of the air bag catheter can be inserted into the stoma.

According to a preferred embodiment, the drainage channel in the through-tube comprises at least one guide tube. The through pipe is internally provided with a limiting piece which is abutted against the tubular air bag of the air bag catheter to block the through pipe to form a sealed space so as to drive liquid to be discharged along the guide pipe.

According to a preferred embodiment, the ends of the through tube are provided with a first balloon and a second balloon for securing against each other with the stoma fastening device. Isolating the stoma from stomal waste upon inflation of the first and second balloons against each other, thereby replacing the stoma from being compressed by the waste.

According to a preferred embodiment, the stop is arranged between the guide tube and the end of the through tube remote from the stoma. The stop member comprises at least two elongated elements arranged separate or opposite each other. The elongate element extends away from the guide tube.

According to a preferred embodiment, at least two elongated elements, which are arranged apart or opposite each other, have a gradually approaching curvature/angle along the length extension of each other. Or at least two elongated elements arranged separately or opposite each other have a tendency to contact each other along the length extension of each other. Or at least two elongated elements arranged apart from or opposite each other have a tendency to fold towards each other along the length extension of each other.

According to a preferred embodiment, the first balloon and the second balloon are arranged on the inner wall of the end of the tube. The first/second air bag and the inner wall of the through pipe have mutually overlapped parts.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 in another state;

FIG. 3 is a schematic diagram of the structure of a preferred embodiment of the first and second asperities of the invention;

FIG. 4 is a schematic view of a preferred connection of the residue removal structure of the present invention to a reservoir bag;

FIG. 5 is a schematic cross-sectional view of a preferred embodiment of the residue removal structure of the present invention;

FIG. 6 is a schematic structural diagram of a preferred embodiment of a limiter of the present invention;

FIG. 7 is a schematic structural view of a preferred embodiment of the first and second balloons of the present invention;

FIG. 8 is a schematic longitudinal cross-sectional structure of the structure shown in FIG. 7;

FIG. 9 is a schematic structural view of a preferred embodiment of a second gas guide channel of the present invention;

fig. 10 is a schematic structural view of a preferred embodiment of a second check valve body of the present invention.

List of reference numerals

100: a liquid storage bag 200: the infusion tube 400: lavage speed control mechanism

500: the ostomy bag 600: the fixing device 700: position limiting piece

900: the injector 110: the first reservoir 120: second liquid storage bag

201: the balloon catheter 202: tubular balloon 203: the first air guide channel

204: first check valve body 205: the multi-way valve body 301: first air bag

302: second airbag 303: a through pipe 501: valve port

601: stoma opening fixture 701: third airbag 702: elongated element

801: second convex body 802: first convex body 803: length element

920: negative pressure device 2051: first connector 3011: the second air guide channel

3012: vent 3031: guide hole 3032: second check valve body

3033: the second connector 3034: guide tube

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

The invention also provides a residue removing structure suitable for the ostomy bag. The mechanism is used to remove residual pasty faeces. It should be noted that the ostomy bag 500 of the invention may also be a container for storing faeces for use in ostomy irrigation, which container may be reused after cleaning and sterilisation.

Referring to fig. 1 and 2, the present embodiment provides a residue removing structure including an ostomy bag 500. The ostomy bag 500 is provided with a through tube 303 for insertion of the balloon catheter 201. The balloon catheter 201 is used for insertion into a stoma and irrigation is infused into the bowel within the body. Preferably, the end of the balloon catheter 201 is provided with a tubular balloon 202. The tubular balloon 202 is used to occlude the stoma and prevent backflow of lavage fluid. The end of the balloon catheter 201 opposite the tubular balloon 202 is connected to the infusion tube 100. With this arrangement, the liquid in the infusion tube 100 can flow into the intestine through the balloon catheter 201.

Preferably, the through tube 303 is provided with a drainage channel for draining stomal waste. The drain channel may be located in the middle portion of the through tube 303. The drainage channel may also be near the end of the through tube 303. Preferably, the drainage channel may comprise at least one guide tube 3034. Preferably, at least one length element 803 is provided between the end of the through tube 303 and the drainage channel. One end of the length member 803 is connected to the end inner wall of the through tube 303. One end of the length element 803 may also be connected to the inner wall on the side away from the end of the tube 303. Preferably, the length element 803 may abut against the inner wall of the tube 303. Preferably, the length element 803 may be inclined with an angle with respect to the inner wall of the tube 303. Preferably, the length element 803 may be made of a resilient material, such as a resilient metal, resilient plastic, or the like.

Preferably, referring to fig. 3, the surface of the length member 803 is provided with a plurality of first protrusions 802 at intervals along the length direction thereof. A portion of the first protrusion 802 protruding from the surface of the length element 803 is connected to a second protrusion 801 protruding along one side of the length extending direction of the length element 803.

Preferably, the included angle formed by the second convex body 801 and the first convex body 802 is greater than 45 ° and less than 135 °. Preferably, the first spur 802 may be perpendicular to the surface of the length element 803. Preferably, the length extension of the second protrusions 802 is directed towards the drainage channel. The second protrusions 802 extend toward the drain passage side. Preferably, the plurality of first lugs 802 are spaced from one another by a distance that is at least greater than twice the length of the first lugs 802. Preferably, the length of the first convex body 802 may be 2 mm. Preferably, the length of the second spur 801 is at least greater than one third of the length of the first spur 802 and less than one half of the length of the first spur 802. Through this setting mode, the beneficial effect who reaches is:

the arrangement of the second protrusions 801 and the first protrusions 802 enables a directional flow of liquid and prevents a small amount of excrement from remaining on the length elements 803. In particular, in case of a patient lying on his side or in a seat, the drainage liquid discharged from the stoma may be directed towards the drainage channel by means of the oblique tube 303 or the length element 803. However, in the lateral position or the seat, the tube 303 is horizontal, and the paste-like feces discharged from the stoma are easily adhered to the surface of the length member 803. From the viewpoint of cost saving and burden reduction for patients, it is desirable that part or all of the elements of the stoma washing device may be reusable, and thus it is required that the stoma washing device be capable of removing pasty excrements after washing and sterilization. When the flow of the tube 303 and the excretion in the vicinity of the stoma are observed during the enema procedure, it is desirable that the residual pasty feces on the surface of the long member 803 be removed as quickly as possible. Therefore, the pasty feces are prevented from remaining by the plurality of second convex bodies 801 and the plurality of first convex bodies 802 which are arranged at intervals. The specific working principle is as follows:

the present invention includes a plurality of second convexities 801 and first convexities 802 spaced apart from each other. So that the surface of the length element 803 is not smooth and when the pasty faeces flow along the length element 803 with the draining liquid, the pasty faeces will be divided into different segments by the spaced first protrusions 802 and be trapped between two adjacent first protrusions 802. When the flow rate of the excreted liquid is reduced, or when the liquid is injected through the balloon catheter 201 to soften and hydrate the pasty stool again, the relatively sparse spacing of the plurality of first protrusions 802 at least obstructs the flow rate of the liquid. Specifically, the liquid can only pass over the first convex bodies 802 when the liquid accumulates for a certain volume, and then part of the liquid falls into the space between two adjacent first convex bodies 802, but the liquid can not flow at this time, and the liquid can only flow when the subsequent liquid accumulates for increasing the volume again and can contact with the liquid between two adjacent first convex bodies 802, and the liquid is shown to have a jump-type flow. The provision of the second protrusions 801 further increases the resistance to the passage of liquid, and the second protrusions 801 serve to weaken the ability of liquid to accumulate. The liquid needs to be combined with the subsequently flowing liquid to increase the volume so as to be contacted with the liquid between two adjacent first convex bodies 802 for merging and flowing, and the arrangement of the second convex body 801 prevents the accumulated liquid from being contacted with the liquid between two adjacent first convex bodies 802, so that the time of the trapped liquid is further increased, and the liquid can be fully hydrated and softened into pasty excrement. Moreover, since the length element 803 is inclined, the liquid is mainly applied to the first protrusions 802 by gravity, and thus, after the pasty feces is sufficiently hydrated and softened, the liquid can be separated from the space between the two first protrusions 802 by the flow impact of the liquid, and can flow down to the drainage channel with the liquid, and then be discharged.

Preferably, the ostomy bag 500 may be made of silicone, rubber, latex, polyurethane, or the like. The ostomy bag 500 may also be manufactured from a film. The film can be PE high-barrier film, EVA and TPE film.

Example 2

This embodiment is a further improvement and supplement to embodiment 1, and under the condition that no contradiction or conflict is caused, all or part of embodiment 1 may be used as a supplement to this embodiment, and repeated contents are not described again.

The residue removal structure provided by the present embodiment can also be combined with a procedure for stomal irrigation, as described in detail below.

Preferably, the infusion tube 200 is in communication with the reservoir bag 100. Preferably, the reservoir bag 100 may store liquids and/or drugs for use in irrigation. In one aspect, the irrigating liquid and the body may be mixed. On the other hand, in the case where the liquid and the medicine need to be separately injected, the reservoir bag 100 may include a first reservoir bag 110 and a second reservoir bag 120. The first reservoir 110 may store liquid for irrigation. The second reservoir 120 may store a drug for lavage. Preferably, the infusion tube 200 can be in communication with the first and

second reservoirs

110, 120, respectively, see fig. 4. One end of the infusion tube 200 opposite to the liquid storage bag 100 is connected with a balloon catheter 201. The balloon catheter 201 is insertable into a stoma of a patient. With this arrangement, the infusion tube 200 can communicate with the intestinal body through the balloon catheter 201, and thus the contents in the liquid storage bag 100 can be injected into the intestinal body, or the liquid in the first liquid storage bag 110 and the medicine in the second liquid storage bag 120 can be separately delivered to the intestinal body. The intestine body in this embodiment may be the colon or the small intestine.

Preferably, the mid-section of the infusion tube 200 is provided with an irrigation speed control structure 400, see fig. 4. The irrigation speed control structure 400 can be a regulator for an existing infusion tube that changes the cross-sectional area of the fluid flowing through the infusion tube 200 by changing the diameter of the infusion tube 200, thereby changing the magnitude of the fluid flow rate.

Preferably, the infusion tube 200 is connected to the balloon catheter 201 at an end opposite to the reservoir 100 through a multi-way valve body 205, see fig. 4. Balloon catheter 201 is a common component in the art and will not be described in detail herein. The multi-way valve body 205 may have three ports. One port of the multi-way valve body 205 is connected with the infusion tube 200, the other port is connected with the balloon catheter 201, and the other port end is connected with a first connector 2051. Preferably, the first connector 2051 may be, or be provided with, a one-way valve. In the present embodiment, the components of the check valve may be a check valve for gas, a check valve for liquid, or a check valve for both gas and liquid. Preferably, the multi-way valve body 205 may be a multi-way valve, such as a three-way valve. Referring to fig. 4, the first connector 2051 may be connected to a syringe 900. Through this setting mode, the beneficial effect who reaches is:

in the current stage of stoma enema cleaning, the infusion bag 100 is placed about 60cm higher than the stoma, and the self weight of the liquid is utilized to push the near end of the irrigation liquid with the stoma to flow to the far end. However, the force of this propulsion is weaker and as the irrigation fluid enters the bowel, the pressure in the bowel increases, possibly causing the irrigation fluid to flow back into the balloon catheter 201. When the lavage fluid flows back into the balloon catheter 201, or possibly under the blocking effect of the fluid in the balloon catheter 201, the intestinal fluid is not refluxed, but the fluid in the fluid storage bag 100 is not pushed to flow to the distal end of the stoma, both of the above two conditions will weaken the flow of the lavage fluid in the intestinal body and soften/hydrate the stool, and further, during the excretion stage of the stoma, pasty stool may appear. The pasty stool may block the excretory passage or remain in the excretory passage, causing the ostomy bag 500 not to be discharged in time, thereby causing the ostomy bag 500 to swell and burst. Although the negative pressure device 920 can be used to suck the ostomy bag 500 under negative pressure, the negative pressure device 920 is generally set at a pressure of 20-40 kPa for safety reasons, and the suction capability of the negative pressure device 920 to the pasty feces is weak, so that the ostomy bag 500 still has a risk of expansion and explosion. According to the invention, through the arrangement of the multi-way valve body 205 and the first connector 2051, liquid can be injected into the balloon catheter 201 in the stage of injecting the lavage liquid, in a manner that the injector 900 is connected with the first connector 2051, so that the lavage liquid is pushed to flow from the proximal end of the stoma to the distal end in the intestinal body, the liquid in the intestinal body is prevented from flowing backwards, the retention time and the action area of the lavage liquid in the intestinal body are ensured, and the excrement is fully softened and hydrated. In the stage of liquid excretion from the stoma, the injector 900 can inject liquid into the balloon catheter 201 for the pasty feces, and the liquid excreted from the head end of the balloon catheter 201 can be hydrated and softened again, so as to avoid the pasty feces from blocking the excretion channel to cause the expansion and explosion of the stoma bag 500.

Preferably, the syringe 900 is pressed to accelerate the liquid in the balloon catheter 201 to the side of the stoma, so as to increase the power of the irrigation liquid flowing into the intestine, and further improve the irrigation liquid amount and the time for the liquid to stay in the intestine.

Preferably, the balloon catheter 201 is passed through an ostomy bag 500, see fig. 1, 2 and 4. Referring to fig. 4, one end of the balloon catheter 201 passes through one side of the bag body 500 and extends out of the opposite side of the ostomy bag 500. The ostomy bag 500 is used for storing discharged liquid and stool discharged from the stoma. Preferably, the balloon catheter 201 passes through the tube 303 and extends outside the ostomy bag 500. The tip of the balloon catheter 201 is provided with a tubular balloon 202. The balloon catheter 201 is provided with a tubular balloon 202 at an end opposite the multi-way valve body 205. The balloon catheter 201 is provided with a tubular balloon 202 at an end opposite to the reservoir bag 100. The air bag is used for abutting against the stoma and/or the inner wall of the intestinal body after being expanded so as to block the liquid from flowing out of the stoma. A first air guide passage 203 is provided inside or outside the balloon catheter 201. Referring to fig. 4, a first air guide passage 203 is provided outside the balloon catheter 201. Preferably, referring to fig. 5, the first air guide passage 203 may also be provided inside the balloon catheter 201. The first air guide passage 203 is connected to the first check valve body 204. The first check valve body 204 may be a check valve. With this arrangement, the syringe 900 is connected to the first check valve body 204, and then the first air guide passage 203 can be inflated and deflated by the syringe 900, thereby inflating or deflating the tubular balloon 202.

Preferably, the ends of the through tube 303 are provided with a first balloon 301 and a second balloon 302. The first air bag 301 and the second air bag 302 can be made of rubber, latex, polyurethane or the like. Referring to fig. 1, 2, 4 and 5, both ends of the through tube 303 pass through the ostomy bag 500. The through pipe 303 can be made of medical silica gel, plastic, metal and other materials which are convenient to clean and sterilize. Preferably, both ends of the through tube 303 are connected with the ostomy bag 500. A first balloon 301 and a second balloon 302 are arranged at one end of the tube 303 near the stoma. Referring to figures 1, 2, 4 and 5, the balloon catheter 201 is threaded from the end of the tube 303 remote from the stoma and protrudes at the end of the tube 303 close to the stoma. Preferably, at least one guide tube 3034 is provided on the side of the through tube 303 near the first balloon 301/the second balloon 302. Preferably, a limiting member 700 is disposed in the through tube 303 for limiting the tube-type air bag 202 and cooperating with the tube-type air bag 202 to block the through tube 303 to form a closed space to drive the liquid to be discharged from the guide tube 3034. Through this setting mode, the beneficial effect who reaches is:

in order to establish the function of leakage prevention and excrement receiving, the stoma washing device at the present stage generally adopts the arrangement of the ostomy bag 500, i.e. the balloon catheter 201 needs to be inserted into the ostomy bag 500 and then to penetrate out of the ostomy bag 500 to be inserted into the stoma, so as to guide the lavage liquid into the intestinal body. However, in order to receive feces and prevent splash contamination, the ostomy bag 500 is required to contain excrement discharged from the stoma after the balloon catheter 201 is withdrawn, which requires that the balloon catheter 201 is independent from the ostomy bag 500 to ensure the mobility of the balloon catheter 201 in inserting and withdrawing the stoma, i.e. the opening of the balloon catheter 201 through the ostomy bag 500 is not sealed, such as the tube 303 of the present embodiment, so that liquid discharged from the stoma can escape from the unsealed opening. It should be noted that, in the case of enema, a lying position is usually selected for safety and for a weak patient. In the case where the patient is in the recumbent position, however, the excreted liquid flows back to the stoma by its own weight, and therefore the excreted liquid accumulates and easily overflows from the balloon catheter 201 through the opening of the ostomy bag 500. Again, even if a softer material such as silicone, rubber, latex, polyurethane, etc. is used to wrap the balloon catheter 201 to achieve the sealing effect, this arrangement has two disadvantages:

1. this sealing effect results in the inability of the medical personnel to sense whether the balloon catheter 201 is occluding the stoma;

2. causing pressure to the stoma.

Specifically, wrapping the balloon catheter 201 with a softer material such as silicone, rubber, latex, polyurethane, or the like to achieve a sealing effect necessarily creates resistance to movement of the balloon catheter 201 into and out of the stoma. The larger the resistance, the better the sealing effect. However, the mode in which the medical staff judges whether or not the tubular balloon 202 of the balloon catheter 201 is fixed to the stoma is: 10-25 ml of air is injected into the first check valve body 204 through the injector 900, so that the tubular air bag 202 of the air bag catheter 201 is expanded due to the injected air, and the air bag catheter 201 is slowly pulled to feel resistance to be fixed in the stoma, so that the stoma is sealed, and the lavage fluid is prevented from overflowing. The medical staff judges whether or not the tubular balloon 202 of the balloon catheter 201 is fixed to the stoma by the resistance when moving the balloon catheter 201. However, the manner of achieving the sealing effect around the balloon catheter 201 also causes resistance to movement of the balloon catheter 201, so that the medical staff cannot judge whether the tubular balloon 202 is fixed to the stoma by the resistance when the balloon catheter 201 moves.

To overcome the above problems, the present invention re-expands tubular balloon 202 by stop 700 and balloon catheter 201 upon withdrawal, thereby blocking through tube 303. Because the multi-way valve body 205 connected with the end of the balloon catheter 201 can be provided with a one-way valve at the interface, the balloon catheter 201 can not discharge liquid or gas, and the limiting piece 700 and the tubular balloon 202 abut against each other, so that the through pipe 303 can be blocked to form a sealing effect. When the tube bladder 202 blocks the through tube 303, a sealed space can be formed between the stoma and the tube bladder 202. The sealed space is able to prevent, on the one hand, stomal drainage liquid from escaping the through tube 303 and, on the other hand, to force stomal drainage liquid and faeces out of the guide tube 3034. The working principle with regard to forcing the stoma discharge excreta to be discharged from the guide tube 3034 is to increase the effect of negative pressure suction through the sealed space. In particular, referring to fig. 1 and 2, the negative pressure device 920 may be used to continuously suck the excreta in the ostomy bag 500 at this stage, thereby establishing secondary leakage prevention and preventing the ostomy bag 500 from bursting due to untimely discharge. Since the space is sealed as a precondition for enabling the negative pressure suction, the stoma washing device provided with the unsealed opening through which the balloon catheter 201 moves cannot employ the negative pressure suction. In addition, the pressure of the negative pressure device 920 is generally set to 20 to 40kPa for safety reasons, and the suction capacity has an upper limit. For the closed ostomy bag 500, the volume of the closed space is larger than the volume of the closed space formed by the stoma, the tubular air bag 202 and the through tube 303 of the invention, so the closed space with smaller volume of the invention has better suction effect for the negative pressure device 920 with the upper limit of suction capacity.

Preferably, the retaining member 700 is disposed adjacent to the guide tube 3034. Specifically, the limiting member 700 is provided near the guide tube 3034 on the side opposite to the first airbag 301/second airbag 302, see fig. 5 and 6. By this arrangement, it is possible to avoid the first limit 700 defining the position of the tubular bladder 202 blocking the passage of stomal waste to the guide tube 3034.

Preferably, the retaining member 700 comprises at least two elongated elements 702 arranged separate/opposite each other. The retaining member 700 may be at least two separate elongated members 702 extending within the inner wall of the guide tube 3034. The elongate member 702 extends away from the first balloon 301/second balloon 302/guide tube 3034. At least two oppositely disposed elongated elements 702 have progressively closer arcs/angles along the length of each other. At least two separate elongated elements 702 have a tendency to contact each other along the length extension of each other. At least two oppositely disposed elongated elements 702 have a tendency to contact each other along the length extension of each other. At least two separate elongated elements 702 have a tendency to fold towards each other along the length extension of each other.

Preferably, at least one third airbag 701 is disposed near a connection of the limiting member 700 and the through tube 303, see fig. 6. The third balloon 701 is used to further define the tubular balloon 202 of the balloon catheter 201. Since the diameter of the through tube 303 is larger than that of the tube-type balloon 202, and to avoid generating resistance to the movement of the balloon catheter 201, and to avoid the balloon catheter 201 being blocked by the stopper 700 when inserted into the through tube 303, the gap formed by the at least two elongated elements 702 of the first stopper 700 is large, and no sealing or blocking effect can be formed after the first stopper 700 abuts against the tube-type balloon 202. The invention can increase the effect of sealing and/or blocking the through pipe 303 by the third air bag 701 and the inflated tubular air bag 202 abutting each other.

Preferably, at least two third balloons 701 may be provided at the ends of the two oppositely disposed elongate members 702 facing the first balloon 301/second balloon 302/guide tube 3034 respectively. The third bladder 701 of the present embodiment may be already inflated. The present embodiment may not have the function of inflating and deflating the third balloon 701. Preferably, the present embodiment may have a function of inflating and deflating the third balloon 701. Specifically, a third air guide channel that does not interfere with the second air guide channel 3011 may be provided on the sidewall of the through tube 303 for inflating and deflating the third airbag 701. The end of the through pipe 303 provided with the second check valve 3032 is provided with a third check valve. One end of the third air guide channel is communicated with the third air bag 701, and the other end of the third air guide channel is communicated with the third one-way valve body.

Preferably, the present invention avoids this problem by the first balloon 301 and the second balloon 302, in relation to the problem that the tube balloon 202 and the stop 700 of the balloon catheter 201 against each other forming a sealed space against the through tube 303, which may cause pressure on the stoma. The stoma compression problem is due to the fact that a recumbent position is usually chosen for safety and for weak patients during enema. When the patient is in the lying position, the excrement discharged from the stoma flows back to the stoma due to the self-weight, and the excrement is accumulated at the stoma, thereby causing pressure on the stoma. Specifically, the excrement in the through pipe 303 and the ostomy bag 500 is discharged out of the ostomy bag 500 by the continuous negative pressure suction of the negative pressure device 920, but there may be a case where pasty excrement blocks the through pipe 303 or the valve port 501 of the ostomy bag 500, and considering that the tubular balloon 202 of the balloon catheter 201 and the stopper 700 abut against each other to form a sealed space blocking the through pipe 303, the excrement cannot be sucked out of the through pipe 303, and then accumulates to the stoma under the action of gravity, and presses the stoma. In addition, considering that it is necessary to inject liquid through the balloon catheter 201 again to soften the stool in a paste state, the injected liquid may also aggravate the pressure on the stoma and thus the excreta may flow out of the fixing device 600 and into the fixing device 600. Outflow of the excreta into the fixation device 600 can not only destroy the fixation effect of the fixation device 600, causing the fixation device 600 and the stoma washing device of the present invention to fall off, but also contaminate the stoma and the skin in the vicinity thereof. The excrement flowing out of the fixing device 600 may pollute the hospital bed and the ward environment.

Preferably, the stoma washing device provided in the present embodiment may include a fastening device 600. The fastening device 600 may be attached to an ostomy bag 500. The fixture 600 may also be connected to the end of the backflow prevention mechanism 300, see fig. 1, 2, and 4. Preferably, the stoma washing device provided in the present embodiment may not include the fastening device 600. The fastening device 600 may be separate from the ostomy bag 500/backflow prevention mechanism 300. The fixture 600 may be used in conjunction with the stoma cleaning device provided in this embodiment. Referring to fig. 1, 2 and 4, a securing device 600 is used to secure an ostomy bag 500 and/or a backflow prevention mechanism 300 in the vicinity of a stoma. The fixing means 600 may be a ring-shaped sticker. The fixture 600 is attached to the skin near the stoma on one side, and the middle portion is removed, thereby exposing the stoma. The fixture 600 may be attached to the stoma cleaning device disclosed in this embodiment on the other side for fixation.

Preferably, in a clinical setting, the stoma opening holder 601 is generally used in cooperation with the fixture 600. The stoma opening fixture 601 is typically a nipple, the head end of which is poked with a small hole using hemostatic forceps to secure the balloon catheter 201. By this arrangement, the balloon catheter 201 can be wrapped and secured well and fit seamlessly to the skin near the stoma. In this embodiment, the stoma opening fixture 601 is further modified. Since there is no need to wrap and secure the balloon catheter 201 and a stoma is needed to discharge excreta smoothly, the small hole at the tip end of the nipple can be further enlarged to form a larger opening, see fig. 1 and 2. Preferably, the stoma opening fixture 601 may be a cylinder. The stoma opening holder 601 has openings at both ends. Preferably, the stoma opening fixture 601 is resilient at least away from the stoma opening. With this arrangement, damage to the first balloon 301 and the second balloon 302 can be reduced to some extent. The stoma opening fixing member 601 may be made of a material having elasticity such as silicone, rubber, latex, polyurethane, or the like. It should be noted that the size of the stoma is usually limited to a certain range, but the size of the opening on both sides of the stoma opening fixing member 601 is different depending on the individual. Preferably, the stoma opening fixture 601 has a larger opening on the side close to the stoma than on the opposite side. By this arrangement, on the one hand the ability of the stoma opening fixture 601 to fit stomas of different sizes can be increased, enabling it to cover stomas of different sizes; on the other hand, the smaller opening on the side close to the first/

second airbags

301, 302 ensures that it is covered by the first and

second airbags

301, 302, and thus abuts against the opening after the first and

second airbags

301, 302 are inflated, thereby not only achieving the function of sealing the opening, but also fixing the backflow prevention mechanism 300 and the ostomy bag 500 to the fixing device 600.

Preferably, the first balloon 301 and the second balloon 302 are arranged on the inner wall of the end of the tube 303, see fig. 4 to 6. The through pipe 303 is hollow. The through tube 303 may be circular or elliptical in radial cross-section. The first air bag 301 and the second air bag 302 can be deformed against each other after being inflated so as to block the through pipe 303. Referring to fig. 7, in a radial section of the through tube 303, the first balloon 301 and the second balloon 302 are disposed opposite to each other on the inner wall of the through tube 303. Referring again to fig. 7, the first balloon 301/the second balloon 302 and the inner wall of the tube 303 have portions that coincide with each other. The mutually overlapping portions allow the cross section of the first balloon 301/the second balloon 302 in the radial direction of the through tube 303 to be irregularly shaped. The cross section of the first balloon 301/the second balloon 302 in the radial direction of the through tube 303 may have substantially circular arc shaped edges. In the case where the first airbag 301 and the second airbag 302 abut against each other after inflation, the first airbag 301 and the second airbag 302 abut against each other so that edges that are substantially arc-shaped to each other may take on an irregular line. Through this setting mode, the beneficial effect who reaches is:

it is possible to provide the first and

second balloons

301, 302 with a sealing effect after being inflated to each other, thereby isolating the excreta discharged from the stoma and receiving the pressure of the excreta instead of the stoma, thereby preventing the excreta discharged from the stoma from flowing out of the first and

second balloons

301, 302 to the outside of the fastening device 600 and into the fastening device 600.

Preferably, the first balloon 301 and/or the second balloon 302 may be spherical or ellipsoidal. Referring to fig. 8, in a cross section along the length of the through tube 303, the first balloon 301 and/or the second balloon 302 may be substantially spherical or ellipsoidal.

Preferably, a second air guide channel 3011 is provided inside the through tube 303, see fig. 8 and 9. Second gas channel 3011 is used to provide a passage for inflation and deflation of first balloon 301 and second balloon 302. Preferably, second air guide channel 3011 is provided with a vent 3012, see fig. 8. Vent 3012 is used to communicate second airway 3011 with first balloon 301/second balloon 302.

Preferably, the second conductor channel 3011 may extend to the end of the through-tube 303 opposite the first balloon 301/second balloon 302, see fig. 9. At least one second check valve 3032 is arranged at one end of the through tube 303 first to the stoma/first balloon 301/second balloon 302. The second check valve body 302 serves to keep the gas inside the first and

second air bags

301 and 302 from escaping. Preferably, gas can be injected into the second check valve body 3032 through the syringe 900 to inflate the first and

second bladders

301 and 302. Preferably, the second check valve body 3032 is further provided with a second connector 3033. The second connector 3033 can facilitate the injection operation of medical staff. Referring to fig. 10, the second check valve body 3032 may be generally circular or oval in shape. At least two second check valve bodies 3032 may be disposed opposite to each other. Preferably, the second check valve body 3032 communicates with the second air passage 3011.

Preferably, the end of the through tube 303 opposite the stoma/first balloon 301/second balloon 302 is provided with a guiding hole 3031. The guide hole 3031 is used for the balloon catheter 2021 to pass through.

Preferably, the ostomy bag 500 is provided with a valve port 501. The ostomy bag 500 may communicate with the drainage bag 901 through the valve port 501. The drainage bag 901 may be in communication with the negative pressure device 920. Preferably, the drainage bag 910 is used to draw and store waste from the ostomy bag 500, thereby avoiding flow into the negative pressure device 920.

To facilitate understanding, the present embodiment provides the following steps of using the stoma washing device:

s100: the patient can choose to irrigate in a recumbent, standing or sitting position and maintain the body in the adopted position.

S200: the liquid storage bag 100 is fixed at a position 60cm higher than the stoma and the air is discharged. The arrangement mode can utilize the gravitational potential energy of the liquid to input the liquid in the liquid storage bag 100 into the human body. The infusion tube 200 communicates with the balloon catheter 201 through a multi-way valve body 205. Preferably, the temperature of the lavage fluid is 38 ℃, and the temperature is too low to cause intestinal spasm easily, and the temperature is higher than the body temperature to reduce the stimulation to the intestinal tract.

S300: the balloon catheter 201 is inserted into the through tube 303 through the guide hole 3031. The first one-way valve body 204 is now retained outside the ostomy bag 500 for subsequent inflation and deflation operations.

S400: the balloon catheter 201 is inserted further into the through tube 303 and extends outside the first balloon 301 and the second balloon 302. The ostomy bag 500 may now be put in communication with the drainage bag 910 and the negative pressure device 920, see fig. 9.

S500: the fixation device 600 and the stoma opening fixture 601 are secured to the stoma as shown in fig. 9. The stoma opening fixing member 601 is fixed between the first and

second balloons

301 and 302 with respect to the opening of the stoma side, and then the second connector 3033 is connected using a syringe 900 and air is injected. The injected air enters the first balloon 301 and the second balloon 302 through the second air passage 3011, and care is taken to avoid over-injecting the air so that the first balloon 301 and the second balloon 302 inflate against each other and close, see fig. 1. The inflation can be stopped when the through tube 303 cannot be detached from the stoma opening fixture 601. Preferably, in this embodiment, the through tube 303 and the stoma opening fixture 601 may be made of transparent material for easy observation by the medical staff.

S600: the balloon catheter 201 is inserted into the stoma. The forward end of the balloon catheter 201 insertion may be lubricated by paraffin oil prior to insertion. Generally, the balloon catheter 201 is inserted 5-10 cm into the stoma, and the insertion distance can be determined according to the condition of the patient. After insertion, syringe 900 is inserted into first check valve body 204 to inject air into tubular bladder 202. Resistance is felt with the slow pull of balloon catheter 201 indicating that it has been secured within the stoma.

S700: after insertion is complete, the speed of the infusion fluid is adjusted by adjusting the lavage rate control mechanism 400. The amount of liquid poured is observed by observing the reservoir bag 100. If the input liquid does not reach the required input amount (500-800 ml), or the reflux condition occurs, the injector 900 is connected with the first connector 2051, the lavage liquid in the injector 900 is pushed into the balloon catheter 201, and then the lavage liquid is pushed to flow from the proximal end of the stoma to the distal end in the intestinal body, so that the reflux of the liquid in the intestinal body is avoided, the retention time and the action area of the lavage liquid in the intestinal body are ensured, and the excrement is fully softened and hydrated.

S800: the lavage liquid is protected in the intestinal tract for a period of time, such as 5-10 min. After irrigation is complete, air is drawn through the syringe 900 connected to the first one-way valve body 204, thereby deflating the tubular balloon 202 and thereby pulling the balloon catheter 201 out of the stoma. After the balloon catheter 201 is pulled out, the syringe 900 is used to inflate the tubular balloon 202, and the balloon catheter 201 abuts against the limiting member 700, so that the tubular balloon 202 and the limiting member 700 of the balloon catheter 201 are matched with each other to block the through pipe 303 to form a closed space.

S900: waiting for the patient to stoma drain. When the excrement is discharged, the negative pressure device 920 can be opened, and then the excrement is discharged from the guide pipe 3034 to the drainage bag 910. If during the discharge a pasty fecal plug occurs, causing the accumulation of waste at the stoma, or the reflux of waste inside the ostomy bag 500 causes the accumulation of waste at the stoma, the first and

second balloons

301, 302 may be inflated by means of a syringe 900 to close the opening at the stoma opening securing member 601, see fig. 2. By this arrangement, it is possible to isolate the excreta discharged from the stoma and to receive the pressure of the excreta instead of the stoma, thereby preventing the outflow of a large amount of accumulated excreta from the first and

second balloons

301 and 302 to the outside of the fixing device 600 and into the fixing device 600. Outflow of the excreta into the fixation device 600 can not only destroy the fixation effect of the fixation device 600, causing the fixation device 600 and the stoma washing device of the present invention to fall off, but also contaminate the stoma and the skin in the vicinity thereof. The excrement flowing out of the fixing device 600 may pollute the hospital bed and the ward environment. In addition, inflation sealing of the first and

second balloons

301, 302 to each other can also provide time for changing the drainage bag 910.

S901: if a blockage of the paste-like stool is observed, the syringe 900 may be connected to the first connector 2051, thereby injecting fluid into the balloon catheter 201 to sufficiently soften and hydrate the paste-like stool.

Preferably, the suction may be continued by the negative pressure means 902 after the stoma has no longer excreted in order to expel the excretions from the ostomy bag 500. Preferably, the first balloon 301, the second balloon 302 is deflated after the evacuation is completed, so that the ostomy bag 500 and the through tube 303 are detached from the stoma opening fastener 601. The tubular balloon 202 is then deflated so that the balloon catheter 201 can be withdrawn from the through tube 303.

Preferably, the guide tube 3034 is spaced a distance from the first balloon 301/second balloon 302. Preferably, the separation distance is greater than 2cm and less than 5 cm.

The present specification encompasses multiple inventive concepts and the applicant reserves the right to submit divisional applications according to each inventive concept. The present description contains several inventive concepts, such as "preferably", "according to a preferred embodiment" or "optionally", each indicating that the respective paragraph discloses a separate concept, the applicant reserves the right to submit divisional applications according to each inventive concept.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. A residue removing structure suitable for use in an ostomy bag, comprising:

an ostomy bag (500) in which a through pipe (303) is arranged;

a through tube (303) provided with a drainage channel, between the end of the through tube (303) and the drainage channel at least one length element (803) is provided, wherein,

a plurality of first convex bodies (802) are arranged on the surface of the length element (803) at intervals, and the parts of the first convex bodies (802) protruding out of the surface of the length element (803) are connected with second convex bodies (801) protruding along the length extension direction of the length element (803).

2. A residue removing structure suitable for an ostomy bag, comprising a through tube (303) deployed in an ostomy bag (500), a length element (803) for removing residues being provided in the through tube (303), wherein,

a plurality of first protrusions (802) are arranged at intervals on the surface of the length element (803) for dividing viscous residues and at least partially trapping liquid;

the second convex body (801) is arranged on one side of the first convex body (802) and extends along the length extension direction of the length element (803) to block liquid on two sides of the first convex body (802) from merging, so that the time for trapping the liquid is increased.

3. The residue removing structure of claim 1 or 2, wherein the plurality of first protrusions (802) are spaced apart from each other by at least more than twice the length of the first protrusions (802).

4. The residue removing structure of claim 1 or 2, wherein the length of the second spur (801) is at least more than one third of the length of the first spur (802) and less than one half of the length of the first spur (802).

5. The residue removing structure according to claim 1 or 2, wherein the through-tube (303) is arranged in the ostomy bag (500) in such a way that it can penetrate the ostomy bag (500) and be connected to the open ports at both ends of the ostomy bag (500), wherein,

the through-tube (303) is insertable into the balloon catheter (201), wherein,

one end of the balloon catheter (201) is connected with the infusion tube (200), and the other end can be inserted into the stoma.

6. Structure according to claim 1 or 2, characterized in that the drainage channel in the through duct (303) comprises at least one guide duct (3034), and that

A limiting piece (700) which abuts against a tubular air bag (202) of the air bag catheter (201) to block the through pipe (303) to form a sealed space so as to drive liquid to be discharged along the guide pipe (3034) is arranged in the through pipe (303).

7. The structure according to claim 1 or 2, wherein the ends of the through tube (303) are provided with a first balloon (301) and a second balloon (302) for securing against each other a stoma securing device, and the stoma is isolated from stomal discharge after the first balloon (301) and the second balloon (302) are inflated against each other, instead of the stoma being forced by discharge.

8. The residue removing structure according to claim 1 or 2, wherein a stopper (700) is provided between the guide tube (3034) and the end of the through tube (303) distal to the stoma;

the stop (700) comprises at least two elongated elements (702) arranged separate from or opposite each other, wherein,

the elongate member (702) extends away from the guide tube (3034).

9. Structure according to claim 1 or 2, characterized in that at least two elongated elements (702) arranged separately or opposite each other have a gradually approaching arc/angle along the length extension of each other;

or

At least two elongated elements (702) disposed apart or opposite each other have a tendency to contact each other along the length extension of each other;

or

At least two elongated elements (702) arranged apart from or opposite each other have a tendency to close each other along the length extension of each other.

10. The residue removing structure according to claim 1 or 2, wherein a first balloon (301) and a second balloon (302) are provided to the inner wall of the end of the through tube (303), wherein,

the inner walls of the first air bag (301)/the second air bag (302) and the through pipe (303) are provided with parts which are mutually overlapped.