Syringe for simulating gastric juice pumpback through simulation model

Abstract

The utility model discloses an injector for simulating gastric juice pumpback by a simulation model, which comprises a simulation needle cylinder, a simulation needle tube and a stomach tube connector, the simulation needle tube is inserted into the simulation needle cylinder and is in sliding connection with the simulation needle cylinder, a collection circuit board is arranged at the front end of the simulation needle cylinder, a linear sliding potentiometer is horizontally arranged in the simulation needle cylinder, and the stomach tube connector is connected with the collection circuit board. The linear sliding potentiometer is arranged in the length direction of the simulation needle cylinder, the front end of the simulation needle cylinder is fixedly connected with an electric brush of the linear sliding potentiometer, and the tail end of the stomach tube connector abuts against a contact piece of the contact switch. Compared with the prior art, a student can judge whether the stomach tube is inserted into the stomach or not according to whether the injector is turned on or not, the injector can identify the control of the student on the air suction rate in the simulation teaching process and detect whether the student is fastened on the stomach tube connector of the injector when the tail end of the stomach tube is fastened on the stomach tube connector of the injector or not, and through the structural design of the interior of the simulation needle cylinder and the interior of the simulation needle tube, the simulation teaching efficiency is improved. The installation and arrangement of each electrical element are realized, and the installation and disassembly of the electrical elements are very convenient.

Description

Technical Field

[0001] This new utility model relates to the field of simulation teaching models, and particularly to a syringe for simulating gastric juice aspiration in a simulation model. Background Art

[0002] Enteral nutrition teaching models are simulation tools used for teaching and training purposes, aiming to help medical students, nursing staff, or other relevant professionals learn the principles, operation techniques, and clinical applications of enteral nutrition support. These models usually simulate the structure and function of the human intestine and can be used to demonstrate the process of inserting an enteral nutrition catheter, the correct method of using enteral nutrition products, the monitoring and management of enteral nutrition complications, etc. However, there are still many deficiencies in the current teaching models and methods on the market and they urgently need to be improved. Therefore, we have developed a simulation training model that can perform a variety of nursing operations and patient scenario simulations, and accurately detect the positioning of orotracheal intubation operations. Through detailed operation steps and diverse scenario simulations, it provides a comprehensive practical training tool for medical staff, helping trainees to cope with various abnormal situations that may be encountered in actual operations, and its meticulous design improves the accuracy and safety of operations.

[0003] Since the simulation training model is equipped with Hall sensors throughout the entire trachea of the model and a magnet is set at the front end of the inserted gastric tube, the insertion position and depth of the gastric tube can be accurately detected. However, during the teaching process, the trainees will not be directly told the insertion depth, and they need to verify the intubation position through medical knowledge.

[0004] In actual medical care, medical staff need to determine whether the gastric tube has been inserted into the stomach, mainly by judging through the following three methods: aspirating gastric juice, the method of air over water sound, and the method of bubble escape. Among them, the method of aspirating gastric juice is to connect a 50 ml sterile syringe to the end of the gastric tube and slowly aspirate. If light green gastric juice is aspirated, it indicates that the gastric tube is in the stomach. In the scenario simulation, a supporting syringe needs to be designed to simulate the method of aspirating gastric juice. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a syringe for simulating gastric juice aspiration in a simulation model that solves the above problems.

[0006] To achieve the above object, the technical solution adopted by the utility model is: a syringe for simulating the aspiration of gastric juice in a simulation model, comprising a simulation syringe barrel, a simulation syringe needle and a gastric tube connector. The simulation syringe needle is inserted into the simulation syringe barrel and is slidably connected to the simulation syringe barrel. A collection circuit board is provided at the front end of the simulation syringe barrel. A control chip, a status indicator light, a contact switch, a power module and a Bluetooth communication module are integrated on the collection circuit board. A linear potentiometer is horizontally arranged in the simulation syringe barrel. The linear potentiometer is arranged along the length direction of the simulation syringe barrel. The front end of the simulation syringe needle is fixedly connected to the brush of the linear potentiometer. The end of the gastric tube connector abuts against the contact piece of the contact switch. The status indicator light, the contact switch, the power module and the Bluetooth communication module are all electrically connected to the control chip by electrical signals.

[0007] Preferably, an end cover is provided on the front end face of the simulation syringe barrel. The end cover is snap-fitted on the simulation syringe barrel. A through hole for the gastric tube connector to extend out is opened at the center of the end cover.

[0008] Preferably, teeth are provided around the end cover. A clamping groove matching the teeth is opened on the inner side wall of the simulation syringe barrel. The end cover is fixed on the simulation syringe barrel through the teeth.

[0009] Preferably, a guiding groove is opened on the outer wall of the simulation syringe needle. The guiding groove is opened along the length direction of the simulation syringe needle. A guiding rib matching the guiding groove is provided on the inner wall of the simulation syringe barrel. The simulation syringe needle slides directionally in the simulation syringe barrel through the guiding rib.

[0010] Preferably, an installation groove for installing the linear potentiometer is provided in the simulation syringe barrel. The front end of the installation groove is open and the rear end is closed. A sliding groove for the brush to slide horizontally is horizontally opened on the installation groove. The linear potentiometer is inserted into the installation groove.

[0011] Preferably, a clamping seat is provided at the front end of the simulation syringe needle. The clamping seat is fixedly connected to the simulation syringe needle through a fastening screw. A positioning groove matching the brush of the linear potentiometer is opened between the clamping seat and the simulation syringe needle. The brush is clamped and fixed in the positioning groove.

[0012] Preferably, a wire hole is opened on the simulation syringe barrel. A power connection socket is provided on the wire hole. The power connection socket is fixed on the simulation syringe barrel and is electrically connected to the power module through a wire.

[0013] Preferably, the gastric tube connector is a reduced-diameter connector with a thinner front end and a thicker rear end.

[0014] Compared with the prior art, the advantages of the utility model are as follows:

[0015] (1) Through the simulation design of the syringe, during the process of simulating the aspiration of gastric juice in nursing, trainees can judge whether the gastric tube is inserted into the stomach by whether the syringe lights up or not.

[0016] (2) Through the installation design of the linear potentiometer in the syringe, during the simulation teaching process, the amount of aspirated gas controlled by students can be identified to determine the aspirated volume when trainees operate.

[0017] (3) Through the installation design of the contact switch, it can be detected whether the end of the gastric tube is fastened to the gastric tube connector of the syringe.

[0018] (4) Through the internal structure design of the simulation syringe barrel and the simulation syringe needle, not only the installation and arrangement of each electrical component are realized, but also its installation and disassembly are very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the present utility model;

[0020] Figure 2 is the internal structural schematic diagram of the present utility model with the simulation syringe barrel removed;

[0021] Figure 3 is the internal structural schematic diagram of the present utility model with the end cover removed;

[0022] Figure 4 is the internal structural schematic diagram of the front end of the simulation syringe barrel of the present utility model;

[0023] Figure 5 is the internal structural schematic diagram of the rear end of the simulation syringe barrel of the present utility model;

[0024] Figure 6 is the structural schematic diagram of the bottom of the simulation syringe barrel of the present utility model.

[0025] In the figure: 1. Simulation syringe barrel; 11. Installation groove; 12. Sliding groove; 13. Card slot; 14. Guide rib; 15. Cable hole; 2. Simulation syringe needle; 21. Guide groove; 3. Gastric tube connector; 4. End cover; 41. Card teeth; 5. Power connection socket; 6. Linear potentiometer; 61. Brush; 7. Acquisition circuit board; 8. Clamping seat; 81. Positioning groove; 9. Contact switch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present utility model will be further described as follows:

[0027] A syringe for simulating the aspiration of gastric juice in a simulation model, see Figures 1 to 6, including a simulation syringe barrel 1, a simulation needle tube 2 and a gastric tube connector 3. The simulation needle tube 2 is inserted into the simulation syringe barrel 1 and is slidably connected to the simulation syringe barrel 1. A collection circuit board 7 is provided at the front end of the simulation syringe barrel 1, which is used for signal collection and signal data transceiver. A control chip, a status indicator light, a contact switch 9, a power supply module and a Bluetooth communication module are integrated on the collection circuit board 7. A linear potentiometer 6 is horizontally arranged in the simulation syringe barrel 1, and the linear potentiometer 6 is arranged along the length direction of the simulation syringe barrel 1. The front end of the simulation needle tube 2 is fixedly connected to the brush 7 of the linear potentiometer 6. The end of the gastric tube connector 3 abuts against the contact piece of the contact switch 9. The status indicator light, the contact switch 9, the power supply module and the Bluetooth communication module are all electrically connected to the control chip.

[0028] The Bluetooth communication module of the present utility model is used for data transmission with the simulation training model. The Bluetooth module on the main control circuit board of the simulation training model sends the intubation depth data of the gastric tube in the model to the control chip of the syringe. The control chip gives status indication through the status indicator light. The trainee judges whether it is gastric juice by the color in the syringe barrel, so as to simulate the aspiration of gastric juice. For example: when the status indicator light shows green, it means that the aspirated gastric juice is obtained, indicating that the gastric tube has been inserted into the stomach. If there is no light or other light sources, it means that it is not in the stomach, indicating that the gastric tube has not been inserted into the stomach, and the intubation operation is unqualified.

[0029] In addition to the assessment by color differentiation, it is also necessary to identify the aspiration volume. In the medical care process, it is required that the aspiration volume should not be greater than 50 ml. Therefore, a linear potentiometer 6 is designed in the syringe of the present utility model. The stroke of the brush 7 on the linear potentiometer 6 is used to determine the aspiration volume of the trainee. If it exceeds the set stroke, the operation is non-compliant.

[0030] In addition, it is also necessary to detect whether the end of the gastric tube is tightly connected to the front section of the syringe. Therefore, a contact switch 9 is designed at the front end of the simulation syringe barrel 1. When the gastric tube is forcefully sleeved on the gastric tube connector 3, the gastric tube connector 3 retracts backward and turns on the contact switch 9, so as to realize the detection of whether the gastric tube connector 3 is pressed tightly. The gastric tube connector 3 is a reducing joint with a thinner front and a thicker rear, which is convenient for the gastric tube connector 3 to retract and turn on the contact switch 9.

[0031] In order to improve the detection accuracy of the syringe and at the same time realize the installation and positioning of each electrical component, it is necessary to optimize the internal structure design of the syringe:

[0032] A end cap 4 is provided on the front end face of the simulation syringe 1. The end cap 4 is snap-fitted onto the simulation syringe 1. A through hole for the gastric tube connector 3 to extend through is provided at the center of the end cap 4. Teeth 41 are provided around the end cap 4. A slot 13 matching the teeth 41 is provided on the inner side wall of the simulation syringe 1. The end cap 4 is fixed to the simulation syringe 1 through the teeth 41. In the present utility model, since the simulation needle tube 2 needs to be pulled at the rear end, the acquisition circuit board 7 and circuit components are designed at the front end of the simulation syringe 1. The design of the end cap 4 can fix each electrical component in the simulation syringe 1. The electrical components can be installed and disassembled by opening the end cap 4.

[0033] Since a linear potentiometer 6 is horizontally provided in the simulation syringe 1 and the simulation needle tube 2 cannot rotate during the pulling process, a guiding groove 21 is provided on the outer wall of the simulation needle tube 2. The guiding groove 21 is provided along the length direction of the simulation needle tube 2. A guiding rib 14 matching the guiding groove 21 is provided on the inner wall of the simulation syringe 1. The simulation needle tube 2 slides directionally in the simulation syringe 1 through the guiding rib 14, thereby preventing the simulation needle tube 2 from rotating circumferentially during the pulling process.

[0034] An installation groove 11 for installing the linear potentiometer 6 is provided in the simulation syringe 1. The front end of the installation groove 11 is open and the rear end is closed. When installing the linear potentiometer 6, only need to align the linear potentiometer 6 and insert it into the simulation syringe 1 from the front end, which is very convenient. A sliding groove 12 for the brush 7 of the linear potentiometer 6 to slide horizontally is horizontally provided on the installation groove 11. The provision of the sliding groove 12 facilitates the horizontal sliding and installation and disassembly of the brush 7 part of the linear potentiometer 6.

[0035] After the linear potentiometer 6 is inserted into the installation groove 11, the brush 7 part thereof also needs to be fixed to the front end of the simulation needle tube 2. Therefore, a clamping seat 8 is designed at the front end of the simulation needle tube 2. A positioning groove 81 matching the brush 7 of the linear potentiometer 6 is provided between the clamping seat 8 and the simulation needle tube 2. The brush 7 is clamped and fixed in the positioning groove 81. The clamping seat 8 is fixedly connected to the simulation needle tube 2 through a fastening screw, thereby realizing the fixation of the brush 7 part to the front end of the simulation needle tube 2.

[0036] A wire hole 15 is provided on the simulation syringe 1. A power connection socket 5 is provided on the wire hole 15. The power connection socket 5 is fixed on the simulation syringe 1 and is electrically connected to the power module through a wire. An external power source can be connected through the power connection socket 5 to supply power to the acquisition circuit board 7. The power connection socket 5 can also adopt a battery installation groove 11 to supply power to the acquisition circuit board 7 through a rechargeable battery.

[0037] The above has introduced in detail a syringe for simulating the aspiration of gastric juice in a simulation model provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. It will be possible to make changes and improvements to the present utility model without exceeding the concept and scope defined by the appended claims. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A syringe for simulating the withdrawal of gastric juice in a simulation model, characterized in that: It includes a simulated syringe, a simulated needle tube and a gastric tube connector, wherein the simulated needle tube is inserted into the simulated syringe and is slidably connected to the simulated syringe. A collection circuit board is provided at the front end of the simulated syringe, and a control chip, a status indicator light, a contact switch, a power module and a Bluetooth communication module are integrated on the collection circuit board. A straight-slide potentiometer is horizontally provided in the simulated syringe, and the straight-slide potentiometer is arranged along the length direction of the simulated syringe. The front end of the simulated needle tube is fixedly connected to the brush of the straight-slide potentiometer. The end of the gastric tube connector is against the contact sheet of the contact switch. The status indicator light, the contact switch, the power module and the Bluetooth communication module are all connected to the control chip electrical signal.

2. A syringe for simulating the withdrawal of gastric fluid in a simulation model according to claim 1, characterized in that: An end cover is arranged on the front end surface of the simulation syringe, and the end cover is clamped on the simulation syringe. A through hole is opened at the center of the end cover to facilitate the extension of the stomach tube connector.

3. A syringe for simulating the withdrawal of gastric fluid in a simulation model according to claim 2, characterized in that: The end cover is provided with latching teeth around it, and the inner side wall of the simulation syringe is provided with a latching groove matching with the latching teeth, and the end cover is fixed on the simulation syringe through the latching teeth.

4. The syringe for simulating the withdrawal of gastric fluid in a simulation model according to claim 1, characterized in that: The outer wall of the simulated needle tube is provided with a guide groove, which is opened along the length direction of the simulated needle tube. The inner wall of the simulated syringe is provided with a guide ridge that matches the guide groove. The simulated needle tube slides in a direction on the simulated syringe through the guide ridge.

5. The syringe for simulating the withdrawal of gastric fluid in a simulation model according to claim 1, characterized in that: The simulated syringe is provided with a mounting groove for mounting a straight-slide potentiometer, the front end of the mounting groove is open, and the rear end is closed. A sliding groove is horizontally opened on the mounting groove to facilitate the horizontal sliding of the brush, and the straight-slide potentiometer is plugged into the mounting groove.

6. The syringe for simulating the withdrawal of gastric fluid in a simulation model according to claim 1, characterized in that: A clamping seat is provided at the front end of the simulated needle tube, and the clamping seat is fixedly connected to the simulated needle tube by a fastening screw. A positioning groove matching the brush of the straight-slide potentiometer is provided between the clamping seat and the simulated needle tube, and the brush is clamped and fixed in the positioning groove.

7. The syringe for simulating the withdrawal of gastric fluid in a simulation model according to claim 1, characterized in that: A wiring hole is provided on the simulation syringe, and a power connection socket is provided on the wiring hole. The power connection socket is fixed on the simulation syringe and is electrically connected to the power module through a wire.

8. The syringe for simulating the withdrawal of gastric fluid in a simulation model according to claim 1, characterized in that: The stomach tube connector is a reducer that is thin at the front and thick at the back.

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