Intestinal stoma feeding and nursing teaching aid and use method thereof

Abstract

The invention discloses an enterostomy feeding and nursing teaching aid and a using method thereof.The enterostomy feeding and nursing teaching aid comprises a shell, a stomach digestion simulation mechanism and a controller, and the shell is made into a human body shape of the upper body of an infant and is formed by connecting the head and the trunk; a stomach digestion simulation mechanism is installed in the trunk, a detachable stoma assembly is arranged at the position of the belly, and the stoma assembly and the stomach digestion simulation mechanism are detachably connected together. A nasal feeding tube is arranged in the head, one end of the nasal feeding tube extends outwards to the outer side of a nasal cavity, and the other end of the nasal feeding tube is connected with a gastric digestion simulation mechanism; the controller is connected with the stoma assembly and the stomach digestion simulation mechanism. By simulating feeding and nursing of the intestinal stoma of the infant, the gap between theory and practice is made up, practice close to the real environment is provided, such as ostomy bag installation and nasal feeding, meanwhile, the water content of excrement is adjusted to simulate different digestion conditions, the judgment capacity of the state of the digestive system of the infant is improved, and related knowledge of stoma nursing is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical teaching tools, and in particular to an enterostomy feeding and nursing teaching auxiliary tool and a use method thereof. Background Art

[0002] After intestinal resection in infants and young children, temporary enterostomy is often required to ensure the normal excretion function of the digestive tract. After this operation, infants and young children need to use ostomy bags to collect excrement, and the stoma should be carefully cared for to avoid infection and other complications. If the temporary stoma care of infants and young children is not appropriate, it may also cause a series of complications such as inflammation of the skin around the stoma, which will not only reduce the comfort of life for infants and young children, but also increase the risk of infection and other health problems. In severe cases, reoperation may be required to solve these problems. And because the body structure of infants and young children is different from that of adults, their intestines are smaller and more fragile, which makes stoma care for infants and young children particularly complex and challenging.

[0003] Currently, in the field of nursing education, health education and video teaching are widely used to impart knowledge and skills about stoma care, but traditional nursing training usually focuses on theoretical learning, imparting knowledge through classroom lectures, case analysis and video demonstrations. However, these methods cannot fully simulate the complexity and uncertainty in actual operations. For nursing students and new nurses, the effect of these theoretical knowledge and video tutorials is limited. The mastery of practical operation skills depends on practical experience and hands-on operation ability. Unfortunately, there is a lack of clinical stoma teaching tools designed specifically for infants on the market, which limits the opportunities for relevant personnel to practice and improve practical operation skills in real situations. Therefore, it is particularly important to develop a stoma teaching tool that meets the actual clinical situation of infants. Summary of the invention

[0004] The existing stoma nursing education is mainly theoretical learning. Students and nurses of related majors are limited by theoretical learning but lack practical and hands-on skills. The present invention provides a stoma feeding and nursing teaching auxiliary tool that can simulate the feeding and nursing process of infant stoma, which is convenient for students or nurses to perform practical or hands-on operations.

[0005] To achieve the above object, the technical solution of the present invention is as follows: An enterostomy feeding and nursing teaching auxiliary tool comprises a shell, a gastric digestion simulation mechanism and a controller, wherein the shell is made into a human body shape of an infant's upper body, and is formed by connecting a head and a trunk; the gastric digestion simulation mechanism is installed inside the trunk, and a detachable stoma component is provided at the position of the stomach, wherein the stoma component and the gastric digestion simulation mechanism are detachably connected together; a nasogastric feeding tube is provided in the head, and one end of the nasogastric feeding tube extends outward to the outside of the nasal cavity, and the other end is connected to the gastric digestion simulation mechanism; the controller is respectively connected to the stoma component and the gastric digestion simulation mechanism.

[0006] Furthermore, a three-way solenoid valve E is fixedly connected to the end of the nasogastric tube; the gastric digestion simulation mechanism includes a first storage tank, a second storage tank, a third storage tank and a vibration motor, wherein the vibration motor is installed on the outside of the first storage tank and the second storage tank, and is used for vibrating the first storage tank and the second storage tank to make the internal substances evenly mixed; a discharge mechanism is provided inside the first storage tank, an outlet for installing the three-way solenoid valve A is provided at the bottom, and a feeding pipe A connected to the inside of the first storage tank and a feeding port with a lid are also provided on the outside, the top end of the feeding pipe A is connected to the three-way solenoid valve E, and a one-way valve is also provided on the feeding pipe, wherein the three-way solenoid valve A is also connected to the third storage tank and the stoma assembly respectively; A feed pipe B with a one-way valve is provided on the top of the second storage tank, a powder inlet with a cover is provided on the side, and an outlet is provided at the bottom. A pump B is installed at the outlet, wherein the top end of the feed pipe B is connected to the three-way solenoid valve E; the inlet of the pump B is connected to the outlet of the second storage tank, and a three-way solenoid valve B is also installed at the outlet, and the three-way solenoid valve B is also connected to the third storage tank and the stoma assembly respectively; a stirring mechanism is provided in the third storage tank, and a discharge pipe with a solenoid valve is provided at the bottom, and the end of the discharge pipe is connected to the stoma assembly; the controller is respectively connected to the vibration motor, the discharge mechanism, the three-way solenoid valve A, the three-way solenoid valve B, the three-way solenoid valve E, the pump B, the stirring mechanism and the solenoid valve.

[0007] The first storage tank is filled with a large amount of water-absorbent resin, which simulates the formation of thick excrement after mixing with the mixed liquid. The second storage tank is filled with a small amount of water-absorbent resin, which simulates the formation of normal excrement after mixing with the mixed liquid. When the substances in the first storage tank and the second storage tank enter the third storage tank together and mix, they can simulate the formation of thin excrement. The controller can control the flow direction of the incoming liquid to flow into the first storage tank or the second storage tank by controlling the solenoid valve E. After the mixed liquid enters, it is vibrated and mixed by the vibration motor to mix the mixed solution in the first storage tank or the second storage tank with the water-absorbent resin to form thick excrement or normal excrement. If thin excrement is required, the three-way solenoid valve A and the three-way solenoid valve B are controlled to start, and the mixed substance is added to the third storage tank, and the stirring mechanism is stirred The controller can be used to control whether the simulated excrement is thick, normal or thin, wherein the discharge mechanism can be opened when discharging thick excrement, so that the formed simulated thick excrement can be quickly pushed out, and when normal excrement needs to be discharged, the pump B is controlled to extract the mixed material in the second storage tank; the design of the gastric digestion simulation mechanism can not only simulate different excrement conditions and help students or nurses better understand the digestion conditions that may occur in infants and young children under different health conditions, but also flexibly adjust the proportion of the mixed materials by controlling the flow direction of the incoming liquid, so as to more realistically reproduce various excrement forms; in addition, the use of the discharge mechanism to quickly discharge the simulated thick excrement can effectively improve the operating efficiency.

[0008] Furthermore, the discharge mechanism includes an air pump, a piston and a stopper, wherein the piston is slidably arranged inside the first storage tank; the air pump is fixedly installed on the top of the first storage tank, and the air outlet is connected to the inside of the first storage tank, wherein the air pump is connected to the controller; there is a pair of stops, which are symmetrically arranged in the inner wall of the middle and lower position of the tank body. When the first storage tank is discharging, the air pump can be controlled by the controller, and the air pump draws gas into the first storage tank, pushing the piston to push out the material in the first storage tank, wherein the stopper is used for limiting, and when the piston moves to the stopper position, it can block the movement of the piston; the air pump is used to extract gas, and then push the piston to push out the material in the storage tank, so that the discharge process is smoother and more efficient, and is particularly suitable for simulating more viscous excrement. The piston is slidably arranged inside the first storage tank, and is limited by a pair of stops symmetrically arranged in the inner wall of the middle and lower position of the tank body, ensuring the accuracy and safety of the piston movement, and avoiding equipment damage or operational errors that may be caused by excessive movement. The controller realizes automatic control over the operation of the vacuum pump, improves the response speed and accuracy of the entire system, makes the simulated defecation process closer to the actual situation, and enhances the realism and practicality of the teaching aids.

[0009] Furthermore, the stirring mechanism includes a motor and a stirring rod, wherein the stirring rod is rotatably arranged in the third storage tank; the motor is fixedly installed on the side of the third storage tank, and the rotating shaft of the motor passes through the third storage tank and is connected to the stirring rod, wherein the motor is also connected to the controller. When it is necessary to simulate dilute excrement, the controller motor is controlled to turn on, and the rotating shaft of the motor drives the stirring rod to rotate to achieve the stirring operation; by introducing the stirring mechanism composed of the motor and the stirring rod, effective mixing of the materials in the third storage tank is achieved, which is particularly suitable for simulating relatively dilute excrement. The motor drives the stirring rod to rotate, ensuring that the various components in the storage tank can be fully and evenly mixed, thereby accurately simulating the required dilute feces state. This design not only improves the authenticity and reliability of the simulation process, but also enhances the flexibility and controllability of the system, so that the teaching aids can cover different teaching needs more widely.

[0010] Furthermore, the trunk is provided with a mounting hole; the stoma assembly includes a storage bin, a simulated stoma tube, a solenoid valve C connected to a controller, and a pump C, wherein the inner side of the simulated stoma tube is provided with a thread; a connecting column matching the mounting hole is provided at a position near the edge of the bottom of the storage bin, and the storage bin is also provided with a number of threaded through holes with rubber plugs; the solenoid valve C is respectively connected to the feed port of the pump C and the gastric digestion simulation mechanism, wherein the outlet of the pump C is connected to the storage bin; the simulated stoma tube is threadedly connected in the threaded through hole. The simulated stoma tube can be connected to different threaded through holes in the storage bin as needed. After the installation is completed, the solenoid valve C can be opened, and then the simulated excrement will be discharged into the connected stoma bag through the simulated stoma tube. By observing the process to confirm the connection effect between the stoma bag and the simulated stoma tube, the practical nursing experience can be improved, which is convenient for subsequent related work.

[0011] The surface of the storage bin can be made to imitate the skin condition near the stoma. The surface is made of silicone to simulate normal skin, dermatitis skin or ulcerated skin. Students can choose according to their learning needs when using it. This design facilitates learning of stoma care operations under different skin conditions.

[0012] Furthermore, the simulated stoma tube includes a short tube and a long tube. The simulated stoma tube design includes two options, short tube and long tube, to simulate the state of stoma tubes of different lengths, which is convenient to use. By providing different length options, it can also more accurately simulate the actual situation, enhance the realism and technical adaptability of training or application, and help improve the proficiency and confidence in handling related medical situations in the future.

[0013] Furthermore, the controller includes a touch screen, buttons and a single-chip microcomputer, wherein the single-chip microcomputer is arranged on the back of the touch screen and is respectively connected to the touch screen, buttons, gastric digestion simulation mechanism and stoma component; the touch screen is installed on the trunk above the stoma component. When in use, the gastric digestion simulation mechanism and stoma component are controlled by the touch screen, which is simple and convenient to operate and easy to use.

[0014] The method for using the enterostomy feeding and nursing teaching auxiliary tool comprises the following steps: S1: Preparation before use, first open the stoma assembly, then open the feeding port and the powder inlet respectively, fill 2 / 5 of the tank capacity of the powdered material into the first storage tank and then close the feeding port, fill 1 / 5 of the tank capacity of the powdered material into the second storage tank and then close the powder inlet, and then close the stoma assembly after completing the above operations, wherein the powdered material is a water-absorbing resin or flour, and the preliminary preparation operations are completed; S2: Perform simulated nasogastric feeding. First, prepare the liquid needed for feeding. Mix flour and water in a ratio of 1:10 to make simulated feeding liquid. Prepare warm water separately. The nasogastric tube on the outside of the nasal cavity is fixed to the cheek with adhesive tape. Write a label with the time and length of intubation and hang it near the end of the nasogastric tube. For feeding, check whether the position of the nasogastric tube is correct. Then hold the top of the nasogastric tube with one hand and connect the nasogastric feeding device to the nasogastric tube with the other hand. S3: When performing intestinal stoma care operations, first select a suitable position according to the simulation needs, remove the rubber plug in the threaded through hole, then screw the simulated stoma tube into the threaded through hole, and then connect the conventional stoma bag; the simulated excrement formed by the gastric digestion simulation mechanism is discharged into the stoma bag through the simulated stoma tube; the gastric digestion simulation mechanism simulates the digestion to form thick excrement, thin excrement and normal excrement, and the simulated three excrement formation processes are as follows: a. Simulate the formation of thick excrement. During nasogastric feeding, the three-way solenoid valve E is controlled to open so that the nasogastric feeding tube is connected to the feeding tube A. Then, the simulated feeding liquid injected by the nasogastric feeding operation enters the first storage tank. Then, the vibration motor is controlled to start. The vibration motor vibrates and mixes the simulated feeding liquid and the powdered substance in the first storage tank, thereby forming a viscous simulated excrement that does not affect the flow; then, the three-way solenoid valve A, the solenoid valve C and the pump C are controlled to open so that the first storage tank is connected to the storage bin of the stoma component. At this time, the discharge mechanism is opened, and the discharge mechanism discharges the formed thick simulated excrement, which is then drawn into the storage bin through the pump C and discharged into the stoma bag through the simulated stoma tube. At this point, the simulated thick excrement is completed; b. Simulate the formation of dilute excrement. During nasogastric feeding, the three-way solenoid valve E is controlled to open, so that the nasogastric feeding tube is connected with the feeding tube B. Then, the simulated feeding liquid injected by the nasogastric feeding operation enters the second storage tank. Then, the vibration motor is controlled to start. The vibration motor vibrates and mixes the simulated feeding liquid and the powdered substance in the second storage tank, thereby forming a flowable dilute simulated excrement. Then, the three-way solenoid valve B, the solenoid valve C and the pump C are controlled to open, and the second storage tank is connected with the storage bin of the stoma component. At this time, the pump B is turned on. The pump B will extract the formed dilute simulated excrement. Then, the pump C extracts it into the storage bin and discharges it into the stoma bag through the simulated stoma tube. At this point, the simulated dilute excrement is completed. c. Simulate the formation of normal excrement. During the nasogastric feeding operation, the three-way solenoid valve E is controlled to open so that the nasogastric feeding tube is connected to the first storage tank and the second storage tank respectively. Then, the simulated feeding liquid injected by the nasogastric feeding operation enters the first storage tank and the second storage tank respectively. Then, the vibration motor is controlled to open so that the first storage tank and the second storage tank form thick simulated excrement and thin simulated excrement respectively; then, the three-way solenoid valve A and the three-way solenoid valve B are controlled to open respectively so that the first storage tank and the second storage tank are connected to the third storage tank respectively, and the discharge mechanism is opened. At this time, the mixture formed inside the first storage tank and the second storage tank enters the third storage tank at the same time; then, the stirring mechanism is opened, and the mixture is stirred by the stirring mechanism to form simulated excrement with fluidity and normal viscosity. Then, the solenoid valve C and the pump C are opened at the same time. After the simulated normal excrement is discharged from the third storage tank, it is pumped into the storage bin through the pump C and discharged into the ostomy bag through the simulated stoma tube. At this point, the simulation of thin excrement is completed; S4, cleaning, control the three-way solenoid valve E to be fully opened, so that the nasogastric tube is connected to the first storage tank and the second storage tank at the same time, and then a large amount of clean water is injected through the nasogastric tube, and then the vibration motor is controlled to start, and the water is vibrated to carry away the substances attached to the first storage tank and the second storage tank, and the first storage tank and the second storage tank are cleaned, and then the three-way solenoid valve A and the three-way solenoid valve B are controlled to be opened respectively, so that the first storage tank and the second storage tank are connected to the third storage tank respectively, and the discharge mechanism is opened. At this time, the water inside the first storage tank and the second storage tank enters the third storage tank, and the stirring mechanism is turned on. The third storage tank is cleaned by mixing and stirring through the stirring mechanism. Finally, the solenoid valve C and the pump C are opened at the same time. After the water is discharged from the third storage tank, it is pumped into the storage bin through the pump C. After the water flushes the storage bin, it is discharged through the threaded through hole or the simulated stoma tube to complete the overall cleaning.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The present invention bridges the gap between theoretical learning and practical skills by simulating the feeding and care process of an infant's enterostomy. The teaching aid allows students or nurses to practice in a near-real environment, enhancing their ability to deal with practical problems, such as correctly installing an ostomy bag and performing nasogastric feeding. At the same time, by adjusting the water content of excrement to simulate different digestive conditions, it helps to improve students' ability to judge the state of the infant's digestive system. In addition, this tool can also help reduce the risk of complications caused by improper care, such as inflammation of the skin around the stoma, thereby improving the quality of life of infants and young children and reducing the possibility of reoperation.

[0016] 2. The gastric digestion simulation mechanism of the present invention can simulate different excrement conditions through the combined use of the first storage tank, the second storage tank and the third storage tank, so as to help students or nurses better understand the digestive conditions that may occur in infants and young children under different health conditions, and can also flexibly adjust the proportion of mixed materials by controlling the flow direction of the incoming liquid, so as to more realistically reproduce various excrement forms. By using the discharge mechanism to quickly discharge the simulated viscous excrement, the operating efficiency can be effectively improved; wherein the piston and the block are used in combination to ensure the accuracy and safety of the piston movement and avoid possible equipment damage caused by excessive movement; the stirring mechanism motor drives the stirring rod to rotate, so as to ensure that the various components in the storage tank can be fully and evenly mixed, so as to accurately simulate the required watery feces state.

[0017] 3. The ostomy component of the present invention uses a storage bin, a simulated ostomy tube and a solenoid valve C in combination, so that the simulated ostomy tube can be flexibly installed to adapt to exercises in different situations. The storage bin has multiple through holes and can simulate different skin conditions such as normal, dermatitis or ulceration, so that learners can conduct targeted training under various conditions, and two types of simulated ostomy tubes, short tube and long tube, are provided to more accurately reflect the actual situation and enhance the realism and skill adaptability of training. The controller integrates a touch screen, buttons and a single-chip microcomputer, which simplifies the operation process and allows users to focus more on skill practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the present invention.

[0020] Figure 3 It is a schematic diagram of the internal structure of the first storage tank of the present invention.

[0021] Figure 4 It is a schematic diagram of the internal structure of the third storage tank of the present invention.

[0022] Figure 5It is a side structural schematic diagram of the stoma component storage bin of the present invention.

[0023] Figure ID: Shell-1, head-11, trunk-12, nasogastric feeding tube-13, three-way solenoid valve E-14, gastric digestion simulation mechanism-2, first storage tank-21, three-way solenoid valve A-211, feeding pipe A-212, feeding port-213, second storage tank-22, feeding pipe B-221, powder inlet-222, three-way solenoid valve B-223, pump B-224, third storage tank-23, discharge pipe-231, vibration motor-24, stirring mechanism-26, discharge mechanism-25, vacuum pump-251, piston-252, block-253, stirring mechanism-26, motor-261, stirring rod-262, controller-3, stoma assembly-4, storage bin-41, threaded through hole-411, simulated stoma tube-42, solenoid valve C-43, pump C-44. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings.

[0025] Embodiment 1: An enterostomy feeding and nursing teaching auxiliary tool comprises a shell 1, a gastric digestion simulation mechanism 2 and a controller 3, wherein the shell 1 is made into the shape of a human body of an infant's upper body, and is formed by connecting a head 11 and a trunk 12; the gastric digestion simulation mechanism 2 is installed inside the trunk 12, and a detachable stoma component 4 is provided at the position of the stomach, wherein the stoma component 4 and the gastric digestion simulation mechanism 2 are detachably connected together; a nasogastric feeding tube 13 is provided in the head 11, and one end of the nasogastric feeding tube 13 extends outward to the outside of the nasal cavity, and the other end is connected to the gastric digestion simulation mechanism 2; the controller 3 is respectively connected to the stoma component 4 and the gastric digestion simulation mechanism 2.

[0026] Before use, open the stoma component 4 first, then put the absorbent resin, flour and other powdered substances that can be solidified into the gastric digestion simulation mechanism 2, and then install the stoma component 4; when in use, the liquid formed by mixing water and flour is used to simulate milk, and the mixed liquid is injected into the gastric digestion simulation mechanism 2 through the nasogastric tube 13. This process enables students to learn and understand the operating procedures and methods of nasogastric feeding; and the injected mixed liquid is mixed with the powdered substance of the gastric digestion simulation mechanism 2, which can simulate the formation of excessively thin excrement with a large water content, normal excrement with a medium water content, or thick excrement with a low water content as needed, and the excrement formed is then discharged through the stoma. Nursing students can use the stoma component 4 to learn how to install the ostomy bag, and can learn to judge the digestive condition of the child by observing the simulated excrement; and the amount of simulated excrement flowing out of the stoma component 4 can be adjusted by the controller 3.

[0027] Embodiment 2: The difference from Embodiment 1 is that a three-way solenoid valve E14 is fixedly connected to the end of the nasogastric tube 13; the gastric digestion simulation mechanism 2 comprises a first storage tank 21, a second storage tank 22, a third storage tank 23 and a vibration motor 24, wherein the vibration motor 24 is installed on the outside of the first storage tank 21 and the second storage tank 22, and is used for vibrating the first storage tank 21 and the second storage tank 22 to uniformly mix the internal substances; a discharge mechanism 25 is provided inside the first storage tank 21, an outlet for installing a three-way solenoid valve A211 is provided at the bottom, and a feed pipe A212 connected to the inside of the first storage tank 21 and a feed port 213 with a lid are also provided on the outside, the top end of the feed pipe A212 is connected to the three-way solenoid valve E14, and a one-way valve is also provided on the feed pipe, wherein the three-way solenoid valve A211 is also connected to the third storage tank 23 and the stoma component respectively. 4; a feed pipe B221 with a one-way valve is provided on the top of the second storage tank 22, a powder inlet 222 with a cover is provided on the side, an outlet is provided at the bottom, a pump B224 is installed at the outlet position, wherein the top end of the feed pipe B221 is connected to the three-way solenoid valve E14; the inlet of the pump B is connected to the outlet of the second storage tank 22, and a three-way solenoid valve B223 is also installed at the outlet position, and the three-way solenoid valve B223 is also connected to the third storage tank 23 and the stoma component 4 respectively; a stirring mechanism 26 is provided in the third storage tank 23, and a discharge pipe 231 with a solenoid valve is provided at the bottom, and the end of the discharge pipe 231 is connected to the stoma component 4; the controller 3 is respectively connected to the vibration motor 24, the discharge mechanism 25, the three-way solenoid valve A211, the three-way solenoid valve B223, the three-way solenoid valve E14, the pump B224, the stirring mechanism 26 and the solenoid valve.

[0028] The first storage tank 21 is filled with a large amount of water-absorbent resin, which simulates the formation of thick excrement after mixing with the mixed liquid, wherein the simulated substance maintains a certain fluidity; the second storage tank 22 is filled with a small amount of water-absorbent resin, which simulates the formation of normal excrement after mixing with the mixed liquid, and when the substances in the first storage tank 21 and the second storage tank 22 enter the third storage tank 23 together and mix, they can simulate the formation of thin excrement; the controller 3 can control the flow direction of the incoming liquid to flow into the first storage tank 21 or the second storage tank 22 by controlling the solenoid valve E. After the mixed liquid enters, it is vibrated and mixed by the vibration motor 24, and the mixed solution in the first storage tank 21 or the second storage tank 22 is mixed with the water-absorbent resin to form thick excrement or normal excrement. If thin excrement is required, the three-way solenoid valve A211 and the three-way solenoid valve B223 are controlled to start, and the mixed substance It is added into the third storage tank 23, and the stirring mechanism 26 is used to stir it to form a thin excrement. The controller 3 can be used to control the simulated excrement to be thick excrement, normal excrement or thin excrement. When discharging thick excrement, the discharge mechanism 25 can be opened to quickly push out the formed simulated thick excrement. When it is necessary to discharge normal excrement, the pump B224 is controlled to extract the mixed material in the second storage tank 22. The design of the gastric digestion simulation mechanism 2 can not only simulate different excrement conditions and help students or nurses better understand the digestion conditions that may occur in infants and young children under different health conditions, but also flexibly adjust the proportion of the mixed materials by controlling the flow direction of the incoming liquid, thereby more realistically reproducing various excrement forms. In addition, by using the discharge mechanism 25 to quickly discharge the simulated thick excrement, the operating efficiency can be effectively improved.

[0029] The controller 3 includes a touch screen, buttons and a single chip microcomputer, wherein the single chip microcomputer is arranged on the back of the touch screen and is respectively connected to the touch screen, buttons, gastric digestion simulation mechanism 2 and stoma component 4; the touch screen is installed on the trunk 12 above the stoma component 4. When in use, the gastric digestion simulation mechanism 2 and the stoma component 4 are controlled by the touch screen, which is simple and convenient to operate and easy to use.

[0030] Embodiment 3: The difference from Embodiment 2 is that the discharge mechanism 25 includes an air pump 251, a piston 252 and a stopper 253, wherein the piston 252 is slidably arranged inside the first storage tank 21; the air pump 251 is fixedly installed on the top of the first storage tank 21, and the air outlet is connected to the inside of the first storage tank 21, wherein the air pump 251 is connected to the controller 3; there is a pair of stoppers 253, which are symmetrically arranged in the inner wall of the middle and lower positions of the tank body. When the first storage tank is discharging, the air pump 251 can be controlled by the controller 3, and the air pump 251 draws gas into the first storage tank 21, and pushes the piston 252 to push out the material in the first storage tank 21, wherein the stopper 253 is used for limiting, and when the piston 252 moves to the position of the stopper 253, the piston 252 can be blocked from moving; the air pump 251 is used to draw gas into the first storage tank 21, and then the piston 252 is pushed to push out the material in the storage tank, so that the discharge process is smoother and more efficient, especially suitable for simulating more viscous excrement. The piston 252 is slidably arranged inside the first storage tank 21, and is limited by a pair of stoppers 253 symmetrically arranged in the inner wall of the tank body at the middle and lower positions, ensuring the accuracy and safety of the movement of the piston 252, and avoiding equipment damage or operational errors that may be caused by excessive movement. The controller 3 realizes automatic control of the operation of the air pump 251, improves the response speed and accuracy of the entire system, makes the process of simulated defecation closer to the actual situation, and enhances the realism and practicality of the teaching aid.

[0031] The stirring mechanism 26 includes a motor 261 and a stirring rod 262, wherein the stirring rod 262 is rotatably arranged in the third storage tank 23; the motor 261 is fixedly installed on the side of the third storage tank 23, and the rotating shaft of the motor 261 passes through the third storage tank 23 and is connected to the stirring rod 262, wherein the motor 261 is also connected to the controller 3. When it is necessary to simulate thin excrement, the motor 261 of the controller 3 is controlled to be turned on, and the rotating shaft of the motor 261 drives the stirring rod 262 to rotate to realize the stirring operation; by introducing the stirring mechanism 26 composed of the motor 261 and the stirring rod 262, the effective mixing of the materials in the third storage tank 23 is realized, which is particularly suitable for simulating thinner excrement. The motor 261 drives the stirring rod 262 to rotate, ensuring that the various components in the storage tank can be fully and evenly mixed, thereby accurately simulating the required thin feces state. This design not only improves the authenticity and reliability of the simulation process, but also enhances the flexibility and controllability of the system, so that the teaching aids can cover different teaching needs more widely.

[0032] Embodiment 4: The difference from Embodiment 3 lies in that a mounting hole is provided on the trunk 12; the stoma assembly 4 comprises a storage bin 41, a simulated stoma tube 42 and a solenoid valve C44 connected to the controller 3, wherein the simulated stoma tube 42 is provided with a thread on the inner side; a connecting column matching the mounting hole is provided at a position near the edge of the bottom of the storage bin 41, and a plurality of threaded through holes 411 with rubber plugs are provided on the storage bin 41; the solenoid valve C44 is respectively connected to the feed port of the pump C44 and the gastric digestion simulation mechanism 2, wherein the outlet of the pump C44 is connected to the storage bin 14; the simulated stoma tube 42 is threadedly connected in the threaded through hole 411. When in use, the rubber stopper of the threaded through hole 411 is removed, and then the simulated stoma tube 42 is connected. The simulated stoma tube 42 can be connected to different threaded through holes 411 of the storage bin 41 as needed. After the installation is completed, the solenoid valve C44 can be opened, and then the pump C44 will pump the mixed simulated substance into the storage bin 14. Then the simulated excrement will be discharged into the connected stoma bag through the simulated stoma tube 42. The connection effect between the stoma bag and the simulated stoma tube 42 can be confirmed by observing the process, which can improve the practical nursing experience and facilitate subsequent related work.

[0033] The surface of the storage bin 41 can be made to imitate the skin condition near the stoma. The surface is made of silicone to simulate normal skin, dermatitis skin or ulcerated skin. Students can choose according to their learning needs when using it. This design facilitates learning of stoma care operations under different skin conditions.

[0034] The simulated stoma tube 42 includes a short tube and a long tube. The simulated stoma tube 42 is designed to simulate stoma tubes of different lengths, which is convenient to use. By providing different lengths, it can more accurately simulate the actual situation, enhance the realism and technical adaptability of training or application, and help improve the proficiency and confidence in handling related medical situations in the future.

[0035] The method for using the enterostomy feeding and nursing teaching aid described in this embodiment comprises the following steps: S1: Preparation before use, first open the stoma assembly 45, then open the feed port 213 and the powder inlet 222 respectively, add 2 / 5 of the tank capacity of the powdered material into the first storage tank 21 and then close the feed port 213, add 1 / 5 of the tank capacity of the powdered material into the second storage tank and then close the powder inlet 222, and then close the stoma assembly 45 after completing the above operations, wherein the powdered material is a water-absorbing resin or flour, and the preliminary preparation operations are completed; S2: Perform a simulated feeding operation. First, prepare the liquid needed for feeding. Mix flour and water in a ratio of 1:10 to form a simulated feeding liquid. Prepare warm water separately. The nasogastric tube 13 on the outside of the nasal cavity is fixed to the cheek with adhesive tape. Write a label with the intubation time and length, and hang it near the end of the nasogastric tube 13. For the feeding operation, check whether the position of the nasogastric tube 13 is correct. Then hold the top of the nasogastric tube 13 with one hand and connect the nasogastric feeding device to the nasogastric tube 13 with the other hand. S3: When performing the intestinal stoma care operation, first select a suitable position according to the simulation needs, take out the rubber plug in the threaded through hole 411, then screw the simulated stoma tube 42 into the threaded through hole 411, and then connect the conventional stoma bag; the simulated excrement formed by the gastric digestion simulation mechanism 2 is discharged into the stoma bag through the simulated stoma tube 42. During the whole process, students can clearly observe the connection between the simulated stoma tube 42 and the stoma bag, which is convenient for practical learning of intestinal stoma-related knowledge, and judge the digestion status by observing the state of the simulated excrement; the gastric digestion simulation mechanism 2 simulates the thick excrement, thin excrement and normal excrement formed by digestion, wherein the simulated three excrement formation processes are as follows: a. Simulate the formation of thick excrement. During nasogastric feeding operation, the three-way solenoid valve E14 is controlled to open, so that the nasogastric feeding tube 13 is connected with the feeding tube A212. Then, the simulated feeding liquid injected by the nasogastric feeding operation enters the first storage tank 21. Then, the vibration motor 24 is controlled to start. The vibration motor 24 vibrates and mixes the simulated feeding liquid and the powdered substance in the first storage tank 21, thereby forming a viscous simulated excrement that does not affect the flow; then, the three-way solenoid valve A211, the solenoid valve C43 and the pump C44 are controlled to open, so that the first storage tank 21 is connected with the storage bin 41 of the stoma assembly 4. At this time, the discharge mechanism 25 is opened, and the discharge mechanism 25 discharges the formed thick simulated excrement, and then it is drawn into the storage bin 41 through the pump C44, and discharged into the stoma bag through the simulated stoma tube 42. At this point, the simulated thick excrement is completed; b. Simulate the formation of dilute excrement. During nasogastric feeding, the three-way solenoid valve E14 is controlled to open, so that the nasogastric feeding tube 13 is connected to the feeding tube B221. Then, the simulated feeding liquid injected by the nasogastric feeding operation enters the second storage tank 22. Then, the vibration motor 24 is controlled to start. The vibration motor 24 vibrates and mixes the simulated feeding liquid and the powdered substance in the second storage tank 22, thereby forming a flowable dilute simulated excrement. Then, the three-way solenoid valve B223, the solenoid valve C43 and the pump C44 are controlled to open, so that the second storage tank 22 is connected to the storage bin 41 of the stoma assembly 4. At this time, the pump B223 is turned on. The pump B223 will extract the formed dilute simulated excrement, and then the pump C44 extracts it into the storage bin 41 and discharges it into the stoma bag through the simulated stoma tube 42. At this point, the simulated dilute excrement is completed. c. Simulate the formation of normal excrement. During nasogastric feeding, the three-way solenoid valve E14 is controlled to be opened, so that the nasogastric tube 13 is connected to the first storage tank 21 and the second storage tank 22 respectively. Then, the simulated feeding liquid injected by the nasogastric feeding operation enters the first storage tank 21 and the second storage tank respectively. Then, the vibration motor 24 is controlled to be turned on, so that the first storage tank 21 and the second storage tank form thick simulated excrement and thin simulated excrement respectively; then, the three-way solenoid valve A211 and the three-way solenoid valve B223 are controlled to be opened respectively, so that the first storage tank 21 and the second storage tank 22 respectively form thick simulated excrement and thin simulated excrement. The third storage tank 23 is connected, and the discharge mechanism 25 is turned on. At this time, the mixture formed inside the first storage tank 21 and the second storage tank 23 enters the third storage tank 23 at the same time; then the stirring mechanism 26 is turned on, and the mixture is stirred by the stirring mechanism 26 to form simulated excrement with fluidity and normal viscosity. Then, the solenoid valve C43 and the pump C44 are turned on at the same time. The simulated normal excrement is discharged from the third storage tank 23 and then pumped into the storage bin 41 by the pump C44, and then discharged into the ostomy bag through the simulated stoma tube 42. At this point, the simulated thin excrement is completed; S4, cleaning, control the three-way solenoid valve E14 to be fully opened, so that the nasogastric tube 13 is connected to the first storage tank 21 and the second storage tank 22 at the same time, and then a large amount of clean water is injected through the nasogastric tube 13, and then the vibration motor 24 is controlled to be turned on, and the water is vibrated to carry away the substances attached to the tank bodies of the first storage tank 21 and the second storage tank 22, so as to complete the cleaning of the first storage tank 21 and the second storage tank 22, and then the three-way solenoid valve A211 and the three-way solenoid valve B223 are respectively controlled to be opened, so that the first storage tank 21 and the second storage tank 22 are respectively connected to the third storage tank 23, and the discharge mechanism 25 is opened. At this time, the water inside the first storage tank 21 and the second storage tank 22 enters the third storage tank 23, and the stirring mechanism 26 is turned on. The third storage tank 23 is cleaned by mixing and stirring through the stirring mechanism 26. Finally, the solenoid valve C43 and the pump C44 are opened at the same time. After the water is discharged from the third storage tank 23, it is pumped into the storage bin 43 through the pump C44. After the water flushes the storage bin 43, it is discharged through the threaded through hole 411 or the simulated stoma tube 42 to complete the overall cleaning.

[0036] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An auxiliary device for feeding and nursing of enterostomy, characterized in that: The invention comprises a shell (1), a gastric digestion simulation mechanism (2) and a controller (3), wherein the shell (1) is formed in the shape of a human body of an infant's upper body and is formed by connecting a head (11) and a trunk (12); the stomach digestion simulation mechanism (2) is installed inside the trunk (12), and a detachable stoma component (4) is provided at the position of the stomach, wherein the stoma component (4) and the gastric digestion simulation mechanism (2) are detachably connected together; a nasogastric feeding tube (13) is provided inside the head (11), and one end of the nasogastric feeding tube (13) extends outward to the outside of the nasal cavity, and the other end is connected to the gastric digestion simulation mechanism (2); and the controller (3) is connected to the stoma component (4) and the gastric digestion simulation mechanism (2) respectively.

2. The enterostomy feeding and nursing teaching aid according to claim 1, characterized in that: The end of the nasogastric tube (13) is fixedly connected to a three-way electromagnetic valve E (14); the gastric digestion simulation mechanism (2) comprises a first storage tank (21), a second storage tank (22), a third storage tank (23) and a vibration motor (24), wherein the vibration motor (24) is installed on the outside of the first storage tank (21) and the second storage tank (22) and is used to vibrate the first storage tank (21) and the second storage tank (22) so that the internal substances are evenly mixed; a discharge mechanism (25) is provided inside the first storage tank (21), an outlet for installing the three-way electromagnetic valve A (211) is provided at the bottom, and a feeding pipe A (212) and a feeding port (213) with a lid connected to the inside of the first storage tank (21) are also provided on the outside, the top end of the feeding pipe A (212) is connected to the three-way electromagnetic valve E (14), and a one-way valve is also provided on the feeding pipe, wherein the three-way electromagnetic valve A (211) is also connected to the third storage tank (23) and the stoma assembly (4) respectively; the top of the second storage tank (22) is connected to the three-way electromagnetic valve E (14), and the three-way electromagnetic valve A (211) is connected to the third storage tank (23) and the stoma assembly (4) respectively; A feed pipe B (221) with a one-way valve is provided at the top, a powder inlet (222) with a cover is provided at the side, and an outlet is provided at the bottom. A pump B (224) is installed at the outlet. The top end of the feed pipe B (221) is connected to a three-way solenoid valve E (14). The inlet of the pump B (224) is connected to the outlet of the second storage tank (22). A three-way solenoid valve B (223) is also installed at the outlet. The three-way solenoid valve B (223) is also connected to the third storage tank (23). ) and a stoma component (4); a stirring mechanism (26) is provided in the third storage tank (23), a discharge pipe (231) with a solenoid valve is provided at the bottom, and the end of the discharge pipe (231) is connected to the stoma component (4); the controller (3) is respectively connected to the vibration motor (24), the discharge mechanism (25), the three-way solenoid valve A (211), the three-way solenoid valve B (223), the three-way solenoid valve E (14), the pump B (224), the stirring mechanism (26) and the solenoid valve.

3. The enterostomy feeding and nursing teaching aid according to claim 2, characterized in that: The discharge mechanism (25) comprises an air pump (251), a piston (252) and a stopper (253), wherein the piston (252) is slidably arranged inside the first storage tank (21); the air pump (251) is fixedly mounted on the top of the first storage tank (21), and the air outlet is connected to the inside of the first storage tank (21), wherein the air pump (251) is connected to the controller (3); there is a pair of stoppers (253) symmetrically arranged on the inner wall of the tank body at the middle and lower positions.

4. An enterostomy feeding and nursing teaching aid according to any one of claims 2 or 3, characterized in that: The stirring mechanism (26) comprises a motor (261) and a stirring rod (262), wherein the stirring rod (262) is rotatably arranged in the third storage tank (23); the motor (261) is fixedly mounted on the side of the third storage tank (23), and the rotating shaft of the motor (261) passes through the third storage tank (23) and is connected to the stirring rod (262), wherein the motor (261) is also connected to the controller (3).

5. The enterostomy feeding and nursing teaching aid according to claim 2, characterized in that: The trunk (12) is provided with a mounting hole; the stoma assembly (4) comprises a storage bin (41), a simulated stoma tube (42), a solenoid valve C (43) connected to a controller (3), and a pump C (44), wherein the simulated stoma tube (42) is provided with a thread on the inner side; a connecting column corresponding to the mounting hole is provided at a position close to the edge of the bottom of the storage bin (41), and the storage bin (41) is also provided with a plurality of threaded through holes (411) with rubber plugs; the solenoid valve C (43) is respectively connected to the feed port of the pump C (44) and the gastric digestion simulation mechanism (2), wherein the outlet of the pump C (44) is connected to the storage bin (14); the simulated stoma tube (42) is threadedly connected to the threaded through hole (411).

6. The enterostomy feeding and nursing teaching aid according to claim 5, characterized in that: The simulated stoma tube (42) comprises a short tube and a long tube.

7. The enterostomy feeding and nursing teaching aid according to claim 1, characterized in that: The controller (3) comprises a touch screen, buttons and a single-chip microcomputer, wherein the single-chip microcomputer is arranged on the back of the touch screen and is respectively connected to the touch screen, the buttons, the gastric digestion simulation mechanism (2) and the stoma component (4); the touch screen is mounted on the trunk (12) above the stoma component (4).

8. The method for using the enterostomy feeding and nursing teaching aid according to claim 5, characterized in that: The following steps are involved: S1: Preparation before use, first open the stoma assembly (45), then open the feed port (213) and the powder inlet (222) respectively, add 2 / 5 of the tank capacity of the powdered material into the first storage tank (21), then close the feed port (213), add 1 / 5 of the tank capacity of the powdered material into the second storage tank, then close the powder inlet (222), and after completing the above operations, close the stoma assembly (45), wherein the powdered material is a water-absorbing resin or flour, and the preliminary preparation operations are completed; S2: Perform a simulated feeding operation. First, prepare the liquid required for feeding. Mix flour and water in a ratio of 1:10 to form a simulated feeding liquid. Prepare warm water separately. The nasogastric tube (13) on the outside of the nasal cavity is fixed to the cheek with adhesive tape. A label indicating the time and length of intubation is written and hung near the end of the nasogastric tube (13). The feeding operation requires first checking whether the position of the nasogastric tube (13) is correct. Then, hold the top of the nasogastric tube (13) with one hand and connect the nasogastric feeding device to the nasogastric tube (13) with the other hand. S3: When performing intestinal stoma care operations, first select a suitable position according to the simulation needs, remove the rubber plug in the threaded through hole (411), then screw the simulated stoma tube (42) into the threaded through hole (411), and then connect a conventional stoma bag; the simulated excrement formed by the gastric digestion simulation mechanism (2) is discharged into the stoma bag through the simulated stoma tube (42); the gastric digestion simulation mechanism (2) simulates the digestion to form thick excrement, thin excrement and normal excrement, wherein the simulated three excrement formation processes are as follows: a. Simulating the formation of thick excrement. During nasogastric feeding, the three-way solenoid valve E (14) is controlled to open so that the nasogastric feeding tube (13) is connected to the feeding tube A (212). Then, the simulated feeding liquid injected during the nasogastric feeding enters the first storage tank (21). Then, the vibration motor (24) is controlled to start. The vibration motor (24) vibrates and mixes the simulated feeding liquid and the powdered substance in the first storage tank (21), thereby forming a viscous simulated excrement that does not affect the flow. Then, the three-way solenoid valve A (211), the solenoid valve C (43) and the pump C (44) are controlled to open so that the first storage tank (21) is connected to the storage bin (41) of the stoma assembly (4). At this time, the discharge mechanism (25) is opened. The discharge mechanism (25) discharges the formed thick simulated excrement, which is then drawn into the storage bin (41) by the pump C (44) and discharged into the stoma bag through the simulated stoma tube (42). At this point, the simulated thick excrement is completed. b. Simulating the formation of dilute excrement. During nasogastric feeding, the three-way solenoid valve E (14) is controlled to open so that the nasogastric feeding tube (13) is connected to the feeding tube B (221). Then, the simulated feeding liquid injected during the nasogastric feeding enters the second storage tank (22). Then, the vibration motor (24) is controlled to start. The vibration motor (24) vibrates and mixes the simulated feeding liquid and the powdered substance in the second storage tank (22), thereby forming a flowable dilute simulated excrement. Then, the three-way solenoid valve B (223), the solenoid valve C (43) and the pump C (44) are controlled to open. The second storage tank (22) is connected to the storage bin (41) of the stoma assembly (4). At this time, the pump B (223) is turned on. The pump B (223) draws out the formed dilute simulated excrement. Then, the pump C (44) draws it out into the storage bin (41) and discharges it into the stoma bag through the simulated stoma tube (42). At this point, the simulated dilute excrement is completed. c. Simulating the formation of normal excrement, during nasogastric feeding operation, the three-way solenoid valve E (14) is controlled to open, so that the nasogastric feeding tube (13) is connected to the first storage tank (21) and the second storage tank (22), respectively. Then, the simulated feeding liquid injected by the nasogastric feeding operation enters the first storage tank (21) and the second storage tank, respectively. Then, the vibration motor (24) is controlled to start, so that the first storage tank (21) and the second storage tank form thick simulated excrement and thin simulated excrement, respectively; then, the three-way solenoid valve A (211) and the three-way solenoid valve B (223) are controlled to open, so that the first storage tank (21) and the second storage tank (22) are connected, respectively. The third storage tank (23) is opened, and the discharge mechanism (25) is opened. At this time, the mixture formed inside the first storage tank (21) and the second storage tank (23) enters the third storage tank (23) at the same time; then, the stirring mechanism (26) is opened, and the mixture is stirred by the stirring mechanism (26) to form simulated excrement with fluidity and normal viscosity. Then, the solenoid valve C (43) and the pump C (44) are opened at the same time. The simulated normal excrement is discharged from the third storage tank (23) and then pumped into the storage bin (41) by the pump C (44), and then discharged into the ostomy bag through the simulated stoma tube (42). At this point, the simulated thin excrement is completed; S4, cleaning, control the three-way solenoid valve E (14) to be fully opened, so that the nasogastric tube (13) is connected to the first storage tank (21) and the second storage tank (22) at the same time, then inject a large amount of clean water through the nasogastric tube (13), then control the vibration motor (24) to start, and use the vibration to make the water remove the substances attached to the tank bodies of the first storage tank (21) and the second storage tank (22), thereby completing the cleaning of the first storage tank (21) and the second storage tank (22), then control the three-way solenoid valve A (211) and the three-way solenoid valve B (223) to be opened respectively, so that the first storage tank (21) and the second storage tank (22) are respectively The third storage tank (23) is connected and the discharge mechanism (25) is opened. At this time, the water in the first storage tank (21) and the second storage tank (22) enters the third storage tank (23). The stirring mechanism (26) is opened. The third storage tank (23) is cleaned by mixing and stirring through the stirring mechanism (26). Finally, the solenoid valve C (43) and the pump C (44) are opened at the same time. After the water is discharged from the third storage tank (23), it is pumped into the storage bin (43) through the pump C (44). After the water flushes the storage bin (43), it is discharged through the threaded through hole (411) or the simulated stoma tube (42), thereby completing the overall cleaning.

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