Bionic stomach mechanism with pressure feedback function and bionic digestive system

Abstract

The utility model relates to a bionic stomach mechanism with a pressure feedback function and a bionic digestive system, the bionic stomach mechanism comprises a flexible bionic stomach, a flexible sensor and a driving mechanism, the flexible sensor is arranged in the stomach wall of the flexible bionic stomach; the two sets of driving mechanisms are symmetrically arranged on the two sides of the flexible bionic stomach, each driving mechanism comprises a rotary driving source, the output end of each rotary driving source is provided with a telescopic driving source, the output end of each telescopic driving source is connected with a mounting base, a connecting shaft is arranged on each mounting base, and a plurality of rolling wheels are rotationally arranged on each connecting shaft. According to the bionic stomach mechanism, the magnitude of the acting force of the flexible bionic stomach can be adjusted under the condition that the driving mechanism does not need to be shifted, assembled and disassembled, the flexible sensor is integrated in the stomach wall, and the magnitude and distribution of the stress of the stomach wall can be monitored in real time through the flexible sensor; meanwhile, the acting force of the driving mechanism on the stomach wall can be adjusted according to feedback pressure data, so that an experiment closer to the real stomach digestion process of a human body is simulated.

Description

TECHNICAL FIELD

[0001] The utility model relates to bionic stomach structure technical field especially is a kind of bionic stomach mechanism and bionic digestive system with pressure feedback function. BACKGROUND

[0002] The patent with disclosure number CN209087229U discloses a bionic human esophagus and stomach digestive system, which comprises a bionic stomach and a rolling extrusion device symmetrically arranged on both sides of the bionic stomach.

[0003] The bionic human esophagus and stomach digestive system can realize the extrusion process of the stomach wall through the extrusion device, but only the up-and-down fluctuation of the stomach wall under the action of the roller can be observed in the simulation of the stomach peristalsis process, and the stress distribution and stress condition of the stomach wall in the experimental process cannot be understood, the stomach peristalsis experiment cannot be simulated within the accurate predetermined pressure range, the more realistic stomach digestion process cannot be simulated, and the angle of the entire device needs to be re-adjusted and fixed when adjusting the pressure of the bionic stomach by the extrusion device of the existing bionic human esophagus and stomach digestive system, which consumes a long time and affects the experimental efficiency. SUMMARY

[0004] Therefore, the utility model wants to overcome the technical problems in the prior art that the bionic human esophagus and stomach digestive system can realize the extrusion process of the stomach wall through the extrusion device, but only the up-and-down fluctuation of the stomach wall under the action of the roller can be observed in the simulation of the stomach peristalsis process, and the stress distribution and stress condition of the stomach wall in the experimental process cannot be understood, the stomach peristalsis experiment cannot be simulated within the accurate predetermined pressure range, the more realistic stomach digestion process cannot be simulated, and the angle of the entire device needs to be re-adjusted and fixed when adjusting the pressure of the bionic stomach by the extrusion device of the existing bionic human esophagus and stomach digestive system, which consumes a long time and affects the experimental efficiency.

[0005] To solve the above technical problems, the utility model provides a bionic stomach mechanism with pressure feedback function, which comprises a flexible bionic stomach, a pylorus and a cardiac orifice are arranged on the flexible bionic stomach, and comprises,

[0006] A flexible sensor is arranged in the stomach wall of the flexible bionic stomach and extends from the side close to the pylorus to the side close to the cardiac orifice.

[0007] Driving mechanism, two groups of driving mechanism are symmetrically arranged on both sides of the flexible bionic stomach, and the driving mechanism comprises a horizontally arranged rotary driving source, a telescopic driving source is vertically installed at the output end of the rotary driving source, a mounting seat is connected to the output end of the telescopic driving source, a connecting shaft is vertically arranged on the mounting seat, and a plurality of rollers are rotatably arranged on the connecting shaft.

[0008] In an embodiment of the utility model, the flexible sensor comprises a first flexible insulating dielectric layer, a first flexible conductive layer, a second flexible insulating dielectric layer, a second flexible conductive layer and a third flexible insulating dielectric layer which are connected together in sequence.

[0009] In an embodiment of the utility model, the flexible bionic stomach is arranged on the base plate through a bracket, and the rotary driving source is connected to the base plate through a connecting seat.

[0010] In an embodiment of the utility model, the mounting seat comprises a first connecting plate, the first connecting plate is vertically connected to the output shaft of the telescopic driving source, and two second connecting plates are horizontally connected to the two ends of the first connecting plate respectively, and the connecting shaft is vertically connected to the two second connecting plates respectively.

[0011] In an embodiment of the utility model, the controller is connected to the rotary driving source, the telescopic driving source and the flexible sensor respectively.

[0012] In an embodiment of the utility model, the flexible sensor is connected to an analog-digital converter, and the analog-digital converter is connected to the controller.

[0013] In an embodiment of the utility model, the controller is integrated with a touch display screen.

[0014] In an embodiment of the utility model, the rotary driving source is a stepping motor, and the telescopic driving source is a telescopic cylinder.

[0015] In an embodiment of the utility model, the surface of the roller is provided with a flexible protective layer.

[0016] A bionic digestive system comprises the bionic stomach mechanism with the pressure feedback function according to any one of the preceding embodiments.

[0017] Compared with the prior art, the above technical scheme of the utility model has the following advantages:

[0018] The utility model relates to a kind of bionic stomach mechanism with pressure feedback function and bionic digestive system, including flexible bionic stomach, flexible sensor and drive mechanism, flexible sensor is set in the stomach wall of flexible bionic stomach;Drive mechanism is provided with two groups and symmetrically set in the both sides of flexible bionic stomach, drive mechanism all includes horizontally arranged rotary drive source, the output end of rotary drive source is vertically installed with telescopic drive source, the output end of telescopic drive source is connected with mounting seat, mounting seat is vertically provided with connecting shaft, connecting shaft is rotatably provided with multiple rollers.The utility model relates to a kind of bionic stomach mechanism with pressure feedback function, in the case where drive mechanism is not removed and disassembled without displacement, the adjustment of the force of flexible bionic stomach can be realized, and flexible sensor is integrated in stomach wall, the size and distribution of the force of stomach wall can be monitored in real time by flexible sensor, the size of the force of stomach wall can be adjusted according to the pressure data of feedback by drive mechanism simultaneously, to simulate more close to the real stomach digestion process of human body experiment. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the content of the utility model more easily be clearly understood, the utility model is further explained in detail below according to the specific embodiment of the utility model and combining with the drawings, wherein

[0020] Figure 1 It is the schematic view that the flexible sensor of the bionic stomach mechanism with pressure feedback function of preferred embodiment of the utility model is installed on flexible bionic stomach;

[0021] Figure 2 It is the position relation schematic view of the roller of bionic stomach mechanism with pressure feedback function and drive mechanism of preferred embodiment of the utility model;

[0022] Figure 3 It is the structure schematic view of drive mechanism of bionic stomach mechanism with pressure feedback function of preferred embodiment of the utility model;

[0023] Figure 4 It is the perspective view of drive mechanism of bionic stomach mechanism with pressure feedback function of preferred embodiment of the utility model;

[0024] Figure 5 It is the structure schematic view of flexible sensor of bionic stomach mechanism with pressure feedback function of preferred embodiment of the utility model.

[0025] Description of the Drawings Reference Signs: 1, flexible sensor;11, first flexible insulating dielectric layer;12, first flexible conductive layer;13, second flexible insulating dielectric layer;14, second flexible conductive layer;15, third flexible insulating dielectric layer;2, drive mechanism;21, rotary drive source;22, telescopic drive source;23, mounting seat;24, connecting shaft;25, roller;3, base plate;A, flexible bionic stomach. DETAILED DESCRIPTION

[0026] The utility model will be further explained in connection 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. Embodiment one

[0027] Referring to Figures 1-5 As shown in the utility model discloses a kind of bionic stomach mechanism with pressure feedback function, including flexible bionic stomach A, pylorus and cardia are provided on flexible bionic stomach, including,

[0028] Flexible sensor 1, flexible sensor 1 is set in the gastric wall of flexible bionic stomach and extends from the side close to pylorus to the side close to cardia;

[0029] Driving mechanism 2, driving mechanism 2 is provided with two groups and is symmetrically arranged on the two sides of flexible bionic stomach, and driving mechanism 2 includes horizontally arranged rotary drive source 21, the output end of rotary drive source 21 is vertically installed with telescopic drive source 22, the output end of telescopic drive source 22 is connected with mounting seat 23, mounting seat 23 is vertically provided with connecting shaft 24, and a plurality of rollers 25 are rotatably arranged on connecting shaft 24.

[0030] Specifically, flexible bionic stomach is connected on base plate 3 by bracket, the setting posture of flexible bionic stomach is same as the posture of stomach when human body is upright, and flexible bionic stomach adopts flexible material to simulate peristalsis of stomach under the condition of applying external force, so as to carry out relevant digestion experiment;Flexible sensor 1 is arranged in the gastric wall of flexible bionic stomach in a manner similar to sandwich, and flexible sensor 1 extends from one end close to the pylorus of flexible bionic stomach to one end close to cardia.Two groups of driving mechanism 2 are symmetrically arranged on the two sides of flexible bionic stomach, and driving mechanism 2 can drive telescopic drive source 22 to rotate through rotary drive source 21, so that rollers 25 can extrude and push the gastric wall of flexible bionic stomach along an oblique path, so as to drive flexible bionic stomach to peristalsis.

[0031] Specifically, in the process that driving mechanism 2 drives flexible bionic stomach to peristalsis, the stress size and stress distribution of gastric wall can be monitored in real time through flexible sensor 1 arranged on the gastric wall, and the rotation speed of rotary drive source 21 and the length of telescopic end when telescopic drive source 22 is at each position in the rotation process can be adjusted through the feedback pressure data, so as to adjust the stress size of flexible bionic stomach, which is beneficial to simulate gastric peristalsis experiment in accurate predetermined pressure range, so as to better simulate the experiment close to the real gastric digestion process of human body.

[0032] Specifically, the bionic stomach mechanism with pressure feedback function only needs to adjust the rotating speed of the rotating drive source 21 and the extension length of the output end of the extension drive source 22 at each point to adjust the pressure applied to the flexible bionic stomach, without the need to displace and disassemble the entire driving mechanism 2, which not only simplifies the adjustment difficulty, but also improves the experimental efficiency.

[0033] The bionic stomach mechanism with pressure feedback function of the utility model, through rotating drive source 21, extension drive source 22 and gyro wheel 25 constitute driving mechanism 2, can realize the adjustment of the flexible bionic stomach acting force size without the need to displace and disassemble driving mechanism 2, and integrate flexible sensor 1 in the stomach wall of flexible bionic stomach, through flexible sensor 1 can real-time monitoring stomach wall stress size and distribution, can also according to the pressure data of feedback adjustment driving mechanism 2 stomach wall acting force size, thereby simulating the experiment of more close to human real stomach digestion process. The structure of the whole device is simple, easy to install and operate, and suitable for practical use.

[0034] Further, the flexible sensor 1 comprises a first flexible insulating dielectric layer 11, a first flexible conductive layer 12, a second flexible insulating dielectric layer 13, a second flexible conductive layer 14 and a third flexible insulating dielectric layer 15 connected in sequence.

[0035] Further, the base plate 3 is horizontally arranged, the flexible bionic stomach is arranged on the base plate 3 through the bracket, and the rotating drive source 21 is connected to the base plate 3 through the connecting seat. Specifically, the bracket fixes the flexible bionic stomach at both ends of the flexible bionic stomach, so that the main part of the flexible bionic stomach can be exposed, so that the driving mechanism 2 can better contact and press the stomach wall to realize stomach peristalsis. Specifically, the connecting seat is connected to the base plate 3 through the fastener, different heights of the connecting seat can be used according to actual needs, so that the driving mechanism 2 located on both sides of the flexible bionic stomach is at a reasonable height position.

[0036] Further, the mounting seat 23 comprises a first connecting plate, the first connecting plate is vertically connected to the output shaft of the extension drive source 22, and the two ends of the first connecting plate are respectively connected with a second connecting plate. The two ends of the connecting shaft 24 are respectively connected with two second connecting plates. Specifically, the first connecting plate, the second connecting plate and the connecting shaft 24 are detachably connected through the fastener, and the first connecting plate is connected to the working end of the extension drive source 22 through the fastener. Different sizes of the mounting seat 23 can be used according to actual needs.

[0037] Further, the controller is further connected with the rotating drive source 21, the extension drive source 22 and the flexible sensor 1.

[0038] Further, the flexible sensor 1 is connected with an analog-digital converter, and the analog-digital converter is connected with the controller.

[0039] Further, the controller is integrated with a touch display screen, and the pressure value can be displayed on the touch display screen in real time, and the related control instructions can be inputted through the touch display screen.

[0040] Further, the rotary driving source 21 is a stepping motor, and the telescopic driving source 22 is a telescopic cylinder.

[0041] Further, the surface of the roller 25 is provided with a flexible protective layer, which reduces the damage to the stomach wall in the process of the roller 25 rolling the flexible bionic stomach, and improves the service life of the flexible bionic stomach. Embodiment two

[0042] The utility model discloses still a kind of bionic digestive system, including the bionic stomach mechanism with pressure feedback function as embodiment one.

[0043] Obviously, the above embodiment is only an example for clearly illustrating, and is not limited to the implementation. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and cannot be exhausted to all implementation. The obvious changes or variations derived therefrom are still within the protection scope of the utility model creation.

Claims

1. A bionic stomach mechanism with pressure feedback function, comprising a flexible bionic stomach, a pylorus and a cardiac orifice are arranged on the flexible bionic stomach, characterized in that: The utility model relates to a bionic stomach mechanism with pressure feedback function, comprising a flexible bionic stomach and a driving mechanism. The flexible sensor is arranged in the stomach wall of the flexible bionic stomach and extends from the side close to the pylorus to the side close to the cardia. The driving mechanism is arranged on both sides of the flexible bionic stomach and comprises a horizontally arranged rotary driving source, a vertically mounted telescopic driving source on the output end of the rotary driving source, a mounting seat connected to the output end of the telescopic driving source, a vertically arranged connecting shaft on the mounting seat, and a plurality of rollers rotatably arranged on the connecting shaft.

2. The bionic stomach mechanism with pressure feedback function according to claim 1, characterized in that: The flexible sensor comprises a first flexible insulating dielectric layer, a first flexible conductive layer, a second flexible insulating dielectric layer, a second flexible conductive layer, and a third flexible insulating dielectric layer connected together in sequence.

3. The bionic stomach mechanism with pressure feedback function according to claim 1, characterized in that: The flexible bionic stomach is arranged on the base plate through a bracket, and the rotary driving source is connected to the base plate through a connecting seat.

4. The bionic stomach mechanism with pressure feedback function according to claim 1, characterized in that: The mounting seat comprises a first connecting plate vertically connected to the output shaft of the telescopic driving source, and two second connecting plates horizontally connected to the two ends of the first connecting plate.

5. The bionic stomach mechanism with pressure feedback function according to claim 1, characterized in that: The utility model further comprises a controller connected to the rotary driving source, the telescopic driving source, and the flexible sensor.

6. The bionic stomach mechanism with pressure feedback function according to claim 5, characterized in that: The flexible sensor is connected to an analog-to-digital converter connected to the controller.

7. The bionic stomach mechanism with pressure feedback function according to claim 6, characterized in that: The controller is integrated with a touch display screen.

8. The bionic stomach mechanism with pressure feedback function according to claim 1, characterized in that: The rotary driving source is a stepping motor, and the telescopic driving source is a telescopic cylinder.

9. The bionic stomach mechanism with pressure feedback function according to claim 1, characterized in that: The surface of the roller is provided with a flexible protective layer.

10. A biomimetic digestive system characterized by: The utility model relates to a bionic stomach mechanism with pressure feedback function.

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