Model capable of simulating dynamic gastric peristalsis

Abstract

The utility model relates to a model for simulating dynamic gastric peristalsis. The model comprises a supporting bottom plate; a first roller is arranged on the first driving assembly; a second roller is arranged on the second driving assembly; the stomach support is located between the first driving assembly and the second driving assembly, and a stomach model is arranged on the stomach support; wherein the structures of the first roller and the second roller are the same, the first roller and the second roller are cylinders, the sections of the cylinders of the first roller and the second roller are triangular, the first driving assembly drives the first roller, and the second driving assembly drives the second roller to synchronously contact with the stomach model and extrude the stomach model to simulate gastric peristalsis. According to the model capable of simulating dynamic gastric peristalsis, the roller structure of the cylinder with the triangular section is more suitable for analog simulation of the gastric peristalsis part of dynamic human gastrointestinal digestion equipment, when the chamfer of the triangular roller is in contact with the stomach model, the extrusion depth is deeper, the force for pushing chyme in the stomach is larger, and the chyme can be better discharged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bionic digestive system, especially a bionic stomach dynamic peristalsis model. BACKGROUND

[0002] The human digestive system is very complex, simply speaking, food is digested in the mouth and then enters the stomach, in the stomach, it is mainly mixed with gastric juice secreted by the stomach and enzymatically hydrolyzed, at the same time, it is ground into small particles by the stomach and discharged into the duodenum; in the duodenum, intestinal juice and bile are secreted to digest the chyme discharged by the stomach, and then the chyme is continuously digested and absorbed by the jejunum.

[0003] The bionic dynamic bionic stomach and intestinal digestive system is an important tool for the development of emerging food and medicine. In recent years, developing a more realistic and better in vitro digestive system has always been a research hotspot. Among them, gastric peristalsis mainly occurs in the stomach and is a key movement in the process of gastric digestion, which directly affects gastric emptying, chyme crushing, gastric juice and food mixing effect, etc., so it is very important to simulate the gastric peristalsis of the human body in vitro.

[0004] Generally, the gastric peristalsis of the human body in vitro can be driven by water pressure (such as the chamber stomach and intestinal system of the TIM system), mechanical extrusion (such as the HGS system), air pressure driving, and rope traction.

[0005] Although the current bionic digestive system has a stomach model similar to the shape and structure of the real human body, the extrusion device for simulating gastric peristalsis still has defects. Specifically, the existing gastric peristalsis extrusion device is to place two circular rollers (referring to the circular rollers shown in Figs. 1 and 2) on the left and right sides of the stomach model, to apply longitudinal extrusion to the stomach wall by air pressure, and to apply transverse extrusion force to the stomach wall by mechanical force, so as to crush food, push food towards the pylorus, and mix gastric juice with food. Figure 8 、 9

[0006] However, in actual application, the existing bionic model has the following shortcomings:

[0007] 1. The circular rollers have extrusion dead angles in the process of extruding the stomach model, which cannot make the food in the stomach fully mixed and uniform, resulting in insufficient contact between chyme and digestive juice, thereby affecting the overall degree of digestion.

[0008] 2. The contact surface of the circular rollers and the stomach model is relatively average, which cannot well crush large particles of food.

[0009] 3. The forward thrust of the circular rollers extruding the stomach model is not enough, sometimes it cannot make the difficult chyme discharge smoothly.

[0010] ​In summary, the simulation model in the prior art cannot make the food in the stomach model mix fully, cannot break the food in the stomach well, cannot make the large-particle chyme discharge, the pipeline is blocked, the gastric emptying process cannot be completed smoothly, the blocking occurs with a certain probability, and the experiment is uncertain and the experiment repeatability is poor. Practical new type content

[0011] Therefore, the technical problem to be solved by the utility model lies in overcoming the problems of insufficient mixing of food in the stomach, difficulty in breaking, and difficulty in discharging large-particle chyme in the prior art, and there is an extrusion dead angle. Because there is a pyloric clamp at the pylorus, the transverse pushing of the circular roller will be a certain distance away from the pyloric clamp even if the maximum stroke is reached due to the diameter of the circular roller. The distance is the extrusion dead angle, many chyme are pushed to the position, cannot pass through the pylorus, and cannot continue to be broken, so the pylorus is prone to be blocked, which leads to abnormal gastric emptying, incomplete particle size breaking, and uneven mixing.

[0012] To solve the above technical problems, the utility model provides a kind of model of bionic stomach dynamic peristalsis, comprising: support base plate;First drive component, it is installed on support base plate, first drive component is equipped with first roller;Second drive component, it is installed on support base plate, second drive component is equipped with second roller;Stomach support, it is installed on support base plate, and stomach support is located between first drive component and second drive component, stomach support is equipped with stomach model;Wherein, the structure of first roller and second roller is identical, and first roller and second roller are cylinder, and the section of first roller and second roller cylinder is triangle, first drive component drives first roller, second drive component drives second roller synchronous with stomach model and extrudes stomach model to simulate stomach peristalsis.

[0013] In an embodiment of the utility model, the first roller and the second roller are symmetrically arranged on both sides of the stomach model.

[0014] In an embodiment of the utility model, the first drive component and the second drive component are identical in structure, and each of the first drive component and the second drive component comprises a linear module and a push module, the linear module is installed on the support base plate, the push module is arranged on the linear module, and the first roller and the second roller are installed on the push module.

[0015] In an embodiment of the utility model, the linear direction of the linear module of the first drive component and the linear direction of the linear module of the second drive component are arranged in an "eight" shape.

[0016] In an embodiment of the utility model, the linear module includes installation support, screw rod, screw nut, linear guide rail, sliding block and drive motor, the installation support is fixedly installed on support bottom plate, drive motor and screw rod are all set up on installation support, and the output of drive motor is connected with screw rod, the screw nut is connected with screw rod, the sliding block is connected screw nut, the linear guide rail is set up on installation support, the sliding block is set up on linear guide rail, and the sliding block can slip along linear guide rail.

[0017] In an embodiment of the utility model, the push module includes cylinder installation plate, cylinder and roller installation support, the cylinder installation plate is fixedly connected with sliding block, the cylinder is installed on cylinder installation plate, the roller installation support is connected with the output of cylinder, and the roller installation support is used for installing first roller and second roller.

[0018] In an embodiment of the utility model, the roller installation support is equipped with pivot, the center of first roller and second roller is equipped with shaft hole, and the pivot is set in shaft hole.

[0019] In an embodiment of the utility model, the cross section of first roller and second roller is equilateral triangle, and the three corners of first roller and second roller are all set as round angle.

[0020] In an embodiment of the utility model, the height of first roller and second roller is 10cm.

[0021] In an embodiment of the utility model, the side length of cross section triangle of first roller and second roller is 5cm.

[0022] The above technical scheme of the utility model has the following beneficial effects compared with prior art:

[0023] The model that the utility model discloses imitates bionic stomach dynamic peristalsis adopts the roller structure of the cylinder of triangular cross section and is more suitable for the simulation of the stomach peristalsis part of dynamic human gastrointestinal digestion equipment, is mainly used to simulate the stomach peristalsis after human eating, realizes the mixing, digestion and emptying of food in the stomach, when the chamfer of triangular roller contacts the stomach model, the extrusion depth is deeper, the force of pushing the chyme in the stomach is greater, and it is beneficial to the better discharge of chyme. ACCURACY OF DRAWINGS

[0024] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to specific embodiments of the utility model and in conjunction with the drawings, wherein

[0025] Figure 1 It is the whole structure schematic diagram of the model that the utility model imitates bionic stomach dynamic peristalsis in preferred embodiment of the utility model;

[0026] Figure 2 The structure of the first roller, the second roller and the stomach model in the preferred embodiment of the utility model Figure 1 ;

[0027] Figure 3 The structure of the first roller, the second roller and the stomach model in the preferred embodiment of the utility model Figure 2 ;

[0028] Figure 4 The structure of the first roller, the second roller and the stomach model in the preferred embodiment of the utility model Figure 3 ;

[0029] Figure 4 The structure of the first roller, the second roller and the stomach model in the preferred embodiment of the utility model Figure 6 ;

[0030] Figure 5 The structure of the first roller, the second roller and the stomach model in the preferred embodiment of the utility model Figure 7 ;

[0031] Figure 8 The structure of the first roller or the second roller in the preferred embodiment of the utility model is shown in the schematic view.

[0032] Figure 1 The structure of the existing circular roller in the preferred embodiment of the utility model is shown in the schematic view Figure 9 ;

[0033] Figure 2 The structure of the existing circular roller in the preferred embodiment of the utility model is shown in the schematic view Figures 1-7 .

[0034] Description of the drawings of the specification: support bottom plate 1, first driving assembly 2, first roller 20, shaft hole 201, linear module 21, mounting support 211, screw rod 212, screw nut 213, linear guide rail 214, sliding block 215, driving motor 216, push module 22, air cylinder mounting plate 221, air cylinder 222, roller mounting bracket 223, rotating shaft 224, second driving assembly 3, second roller 30, stomach holder 4. DETAILED DESCRIPTION

[0035] The utility model will be further described below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0036] Reference Figures 3-5As shown in the figure, the bionic stomach dynamic peristalsis model comprises: a support bottom plate 1; a first driving assembly 2 installed on the support bottom plate 1, wherein the first driving assembly 2 is provided with a first roller 20; a second driving assembly 3 installed on the support bottom plate 1, wherein the second driving assembly 3 is provided with a second roller 30; a stomach support 4 installed on the support bottom plate 1, and the stomach support 4 is located between the first driving assembly 2 and the second driving assembly 3, wherein the stomach support 4 is provided with a stomach model; wherein the first roller 20 and the second roller 30 are the same structure, and the first roller 20 and the second roller 30 are cylindrical, and the cross section of the first roller 20 and the second roller 30 is triangular, the first roller 20 and the second roller 30 are symmetrically arranged on both sides of the stomach model, and the first driving assembly 2 drives the first roller 20, the second driving assembly 3 drives the second roller 30 to synchronously contact and extrude the stomach model to simulate the stomach peristalsis.

[0037] Specifically, referring to Figure 6 As shown in the figure, the bionic stomach dynamic peristalsis model comprises: a support bottom plate 1; a first driving assembly 2 installed on the support bottom plate 1, wherein the first driving assembly 2 is provided with a first roller 20; a second driving assembly 3 installed on the support bottom plate 1, wherein the second driving assembly 3 is provided with a second roller 30; a stomach support 4 installed on the support bottom plate 1, and the stomach support 4 is located between the first driving assembly 2 and the second driving assembly 3, wherein the stomach support 4 is provided with a stomach model; wherein the first roller 20 and the second roller 30 are the same structure, and the first roller 20 and the second roller 30 are cylindrical, and the cross section of the first roller 20 and the second roller 30 is triangular, the first roller 20 and the second roller 30 are symmetrically arranged on both sides of the stomach model, and the first driving assembly 2 drives the first roller 20, the second driving assembly 3 drives the second roller 30 to synchronously contact and extrude the stomach model to simulate the stomach peristalsis.

[0038] Referring to ​ As shown in the figure, the bionic stomach dynamic peristalsis model comprises: a support bottom plate 1; a first driving assembly 2 installed on the support bottom plate 1, wherein the first driving assembly 2 is provided with a first roller 20; a second driving assembly 3 installed on the support bottom plate 1, wherein the second driving assembly 3 is provided with a second roller 30; a stomach support 4 installed on the support bottom plate 1, and the stomach support 4 is located between the first driving assembly 2 and the second driving assembly 3, wherein the stomach support 4 is provided with a stomach model; wherein the first roller 20 and the second roller 30 are the same structure, and the first roller 20 and the second roller 30 are cylindrical, and the cross section of the first roller 20 and the second roller 30 is triangular, the first roller 20 and the second roller 30 are symmetrically arranged on both sides of the stomach model, and the first driving assembly 2 drives the first roller 20, the second driving assembly 3 drives the second roller 30 to synchronously contact and extrude the stomach model to simulate the stomach peristalsis.

[0039] In the above structure, the first driving assembly 2 and the second driving assembly 3 are the same structure, the first driving assembly 2 and the second driving assembly 3 each comprise a linear module 21 and a push module 22, the linear module 21 is installed on the support bottom plate 1, the push module 22 is arranged on the linear module 21, and the first roller 20 and the second roller 30 are installed on the push module 22. Specifically, the first roller 20 is installed on the push module 22 of the first driving assembly 2, and the second roller 30 is installed on the push module 22 of the second driving assembly 3.

[0040] In the structure, the linear direction of the linear module 21 of the first driving assembly 2 and the linear direction of the linear module 21 of the second driving assembly 3 are arranged in an "eight" shape. The linear module 21 of the first driving assembly 2 and the linear module 21 of the second driving assembly 3 are symmetrically arranged. The small end of the linear direction of the linear module 21 of the first driving assembly 2 and the linear direction of the linear module 21 of the second driving assembly 3 is directed to the position of the pylorus, so that the distance between the first roller 20 and the second roller 30 gradually decreases during the rolling process of the first roller 20 and the second roller 30 along the surface of the stomach model in the direction of the pylorus.

[0041] In the structure, the linear module 21 comprises a mounting support 211, a lead screw 212, a lead screw nut 213, a linear guide rail 214, a sliding block 215, and a driving motor 216. The mounting support 211 is fixedly installed on the support bottom plate 1. The driving motor 216 and the lead screw 212 are both arranged on the mounting support 211, and the output end of the driving motor 216 is connected with the lead screw 212. The lead screw nut 213 is threadedly connected with the lead screw 212. The sliding block 215 is connected with the lead screw nut 213. The linear guide rail 214 is arranged on the mounting support 211. The sliding block 215 is arranged on the linear guide rail 214 and can slide along the linear guide rail 214. The lead screw 212 is arranged in parallel with the linear guide rail 214. During the rotation of the lead screw 212 driven by the driving motor 216, the lead screw nut 213 moves linearly along the lead screw 212, and the sliding block 215 slides along the linear guide rail 214.

[0042] In the structure, the push module 22 comprises a cylinder mounting plate 221, a cylinder 222, and a roller mounting bracket 223. The cylinder mounting plate 221 is fixedly connected with the sliding block 215. The cylinder 222 is installed on the cylinder mounting plate 221. The roller mounting bracket 223 is connected with the output end of the cylinder 222. The roller mounting bracket 223 is used for mounting the first roller 20 and the second roller 30. The roller mounting bracket 223 is provided with a rotating shaft 224. The center of the first roller 20 and the second roller 30 is provided with an axle hole 201. The rotating shaft 224 is arranged in the axle hole 201.

[0043] In the structure, the cross section of the first roller 20 and the second roller 30 is an equilateral triangle, and the three corners of the first roller 20 and the second roller 30 are all arranged as round corners. The round corners arranged at the corners of the first roller 20 and the second roller 30 are specifically 5mm chamfers.

[0044] In the structure, the first roller 20 and the second roller 30 are made by a 3D printer, and the specific size of the first roller 20 and the second roller 30 is that the height of the first roller 20 and the second roller 30 is 10 cm, and the length of the side of the cross section triangle of the first roller 20 and the second roller 30 is 5 cm.

[0045] The working principle of the bionic stomach dynamic peristalsis model is as follows:

[0046] The first roller 20 and the second roller 30 are arranged on both sides of the stomach model, and are in contact with and separated from the stomach model through the push module 22 connected thereto, and move forward and backward along the stomach model through the linear module 21. When the device is started, the first roller 20 and the second roller 30 start to work according to the set program. When the first roller 20 and the second roller 30 move to the rear of the stomach model, they are respectively pushed out to the stomach model by the push module 22, so as to achieve the effect of the roller extruding the stomach model. Then the first roller 20 and the second roller 30 move to the front end of the stomach model through the connected linear module 21. While the first roller 20 and the second roller 30 move, the first roller 20 and the second roller 30 roll on the stomach model, so that the food in the stomach is pushed and oscillated, and part of the chyme at the front end of the stomach moves to the rear end of the stomach under the action of the counterforce. While the large-particle food is physically broken, it can be fully mixed with the digestive juice. The chyme smaller than the size of the pylorus is pushed to the pylorus and discharged into the duodenum.

[0047] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A model of dynamic peristalsis of a stomach, characterized in that, The utility model relates to a stomach model simulation device, including: Supporting base plate; First drive assembly is installed on supporting base plate, be equipped with first gyro wheel on first drive assembly; Second drive assembly is installed on supporting base plate, be equipped with second gyro wheel on second drive assembly; Stomach support is installed on supporting base plate, and stomach support is located between first drive assembly and second drive assembly, be equipped with stomach model on stomach support; Wherein, the structure of first gyro wheel and second gyro wheel is same, and first gyro wheel and second gyro wheel are cylinder, and the section of first gyro wheel and second gyro wheel cylinder is triangle, first drive assembly drives first gyro wheel, second drive assembly drives second gyro wheel and is in contact with stomach model and extrudes stomach model to simulate stomach peristalsis.

2. The model of dynamic gastric peristalsis according to claim 1, characterized in that: The first gyro wheel and the second gyro wheel are symmetrically arranged on both sides of the stomach model.

3. The model of bionic gastric dynamics peristalsis according to claim 1, characterized in that: The first drive assembly and the second drive assembly are the same structure, and the first drive assembly and the second drive assembly both include linear module and push module, the linear module is installed on the supporting base plate, the push module is arranged on the linear module, and the first gyro wheel and the second gyro wheel are installed on the push module.

4. The model of bionic gastric dynamics peristalsis according to claim 3, characterized in that: The linear direction of the linear module of the first drive assembly and the linear direction of the linear module of the second drive assembly are arranged in an "eight" shape.

5. The model of bionic gastric dynamics peristalsis according to claim 3 or 4, characterized in that: The linear module includes a mounting bracket, a lead screw, a lead screw nut, a linear guide rail, a slider, and a drive motor, the mounting bracket is fixedly installed on the supporting base plate, the drive motor and the lead screw are arranged on the mounting bracket, and the output end of the drive motor is connected with the lead screw, the lead screw nut is threadedly connected with the lead screw, the slider is connected with the lead screw nut, the linear guide rail is arranged on the mounting bracket, and the slider is arranged on the linear guide rail and can slide along the linear guide rail.

6. The model of bionic gastric dynamics peristalsis according to claim 5, characterized in that: The push module includes a cylinder mounting plate, a cylinder, and a gyro wheel mounting bracket, the cylinder mounting plate is fixedly connected with the slider, the cylinder is mounted on the cylinder mounting plate, the gyro wheel mounting bracket is connected with the output end of the cylinder, and the gyro wheel mounting bracket is used for mounting the first gyro wheel and the second gyro wheel.

7. The model of bionic gastric dynamics peristalsis according to claim 6, characterized in that: The gyro wheel mounting bracket is provided with a rotating shaft, the center of the first gyro wheel and the second gyro wheel is provided with an axle hole, and the rotating shaft is arranged in the axle hole.

8. The model of bionic gastric dynamics peristalsis according to claim 1, characterized in that: The section of the first gyro wheel and the second gyro wheel is an equilateral triangle, and the three corners of the first gyro wheel and the second gyro wheel are all arranged as round corners.

9. The model of bionic gastric dynamics peristalsis according to claim 8, characterized in that: The height of the first gyro wheel and the second gyro wheel is 10 cm.

10. The model of bionic gastric dynamics peristalsis according to claim 9, characterized in that: The length of the side of the triangular section of the first gyro wheel and the second gyro wheel is 5 cm.

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