CN206134073U - Cardiopulmonary resuscitation model for nursing teaching - Google Patents

Abstract

The utility model discloses a cardiopulmonary resuscitation model for nursing teaching, which relates to the technical field of medical devices and comprises: a human body model, which is provided with a brain blood cavity and a heart blood cavity; the brain blood cavity is provided with a first interface; Containing liquid and the first pump; the thin-walled tubes include carotid thin-walled tubes, respectively connected to the first pump body and the first interface; the pacing device for simulating the heartbeat is set in the chest cavity of the human body model; the controller, It is electrically connected with the pacemaker and the first pump body; when the pacemaker beats, the controller generates a signal and transmits it to the first pump body to control it to deliver the fluid in the blood chamber of the heart to the thin-walled tube of the carotid artery , allowing fluid to flow into the blood cavities of the brain. The cardiopulmonary resuscitation model for nursing teaching provided by the utility model can help learners judge the pulsation of the carotid artery, enhance the judgment of weak sensations, and can more realistically simulate the blood circulation process of the human brain.

Description

Cardiopulmonary resuscitation model for nursing teaching

technical field

The utility model relates to the technical field of medical equipment, in particular to a cardiopulmonary resuscitation model for nursing teaching.

Background technique

Once the human cardiac arrest occurs, if it is not rescued and resuscitated in time, it will cause irreversible damage to the brain and other vital organs of the human body after 4 to 6 minutes. Therefore, cardiopulmonary resuscitation after cardiac arrest must be carried out immediately on the spot . The cardiopulmonary resuscitation model used in nursing teaching uses various methods to help learners master the skills of cardiopulmonary resuscitation, in order to prevent accidents due to unskilledness in emergency situations, but in fact, whether cardiopulmonary resuscitation is effective or not depends on the When pulsating, the blood in the ventricle is discharged into the arteries to supply blood and oxygen to the brain and other organs of the human body. The brain is an important part of the human body, so its blood supply should be satisfied, and the carotid artery delivers blood to it After performing cardiopulmonary resuscitation on the patient, the carotid artery pulsation is an important basis for judging whether the cardiopulmonary resuscitation is successful. As a professional rescuer, it is necessary to judge this, and the existing cardiopulmonary for nursing teaching The resuscitation model usually adds a vibration device to the model to simulate the carotid artery pulse. However, in actual situations, at the beginning of the successful cardiopulmonary resuscitation of the patient, the carotid artery pulse is relatively weak, so it is not easy to judge. The existing model It cannot accurately reflect this problem, so it is easier to make mistakes in the actual rescue of cardiopulmonary resuscitation, so a more realistic cardiopulmonary resuscitation model for nursing teaching that can simulate carotid artery pulse is needed to help learners master the judging of carotid artery Tips for pulsating situations.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art and provide a kind of cardiopulmonary resuscitation model for nursing teaching;

In order to achieve the above object, the cardiopulmonary resuscitation model for nursing teaching provided by the utility model includes:

Human body model, the human body model is provided with a brain blood cavity, a heart blood cavity and a chest cavity, the brain blood cavity is provided with a first interface, and the heart blood cavity is filled with liquid;

a first pump body, the first pump body is placed in the blood chamber of the heart;

A thin-walled tube, the thin-walled tube includes a carotid artery thin-walled tube, one end of the carotid artery thin-walled tube is connected to the first pump body, and the other end is connected to the first interface of the brain blood cavity;

A pacing device, the pacing device is arranged in the chest cavity of the human body model to simulate heart beat;

a controller, the controller is electrically connected to the pacemaker and the first pump body;

When the pacing device is pulsing, the controller sends a signal and transmits it to the first pump body, controlling the first pump body to deliver the fluid in the blood chamber of the heart to the thin-walled carotid artery so that the liquid flows into the brain blood cavity through the carotid thin-walled tube.

Preferably, the brain blood cavity is provided with a second pump body, the heart blood cavity is also provided with two interfaces, the thin-walled tube also includes a vein thin-walled tube, and one end of the vein thin-walled tube is connected to the The second pump body is connected, and the other end is connected with the second interface, so that the liquid in the blood chamber of the brain can be returned to the blood chamber of the heart through the second pump body through the thin-walled venous tube.

Preferably, a flow sensor is provided in the airway of the human body model, and an external display screen is provided outside the human body model, and the flow sensor and the external display screen are electrically connected to the controller. When blowing air in the airway, the external display screen can display the gas flow rate sensed by the flow sensor.

Preferably, the controller and the pacing device are electrically connected with a timer for setting the pacing time.

Preferably, a compressible member is disposed within the chest cavity of the mannequin for simulating compression of the chest during cardiopulmonary resuscitation.

Preferably, a pressure sensor is provided inside the tube wall of the carotid artery thin-walled tube, an external indicator light is provided outside the human body model, and the pressure sensor and the external indicator light are electrically connected to the controller, When the tube wall of the carotid artery thin-walled tube is subjected to the pressure generated by the liquid flowing through the tube, the external indicator light will flash red.

Preferably, a height sensor electrically connected to the controller and the external indicator light is also provided in the chest cavity of the mannequin, and when the compressible member makes the chest cavity sag by 4-5 cm, the external indicator light flashes yellow light.

Preferably, the thin-walled tube is made of plastic material.

According to the cardiopulmonary resuscitation model for nursing teaching provided by the utility model, the brain blood cavity and the heart blood cavity that simulate the human brain and the heart are arranged in the human body model, and the carotid artery thin-walled tube that simulates the carotid artery is arranged. The blood chamber is filled with liquid that simulates blood. When the pacing device installed in the chest cavity of the mannequin simulates the heartbeat for pacing, the liquid in the blood chamber of the heart can be transported to the blood chamber of the brain through the thin-walled carotid artery , in order to simulate the blood in the human heart flowing into the brain through the carotid artery, supplying blood and oxygen to the brain. When the liquid flows through the carotid artery thin-walled tube, the pressure on the tube wall makes the artery thin-walled tube pulsate, so as to simulate the pulsation of the carotid artery wall due to the pressure of blood in the carotid artery, so that learners can practice judging the carotid artery accordingly Pulsation condition.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of the utility model.

Fig. 2 is a schematic diagram of the utility model embodiment.

Reference signs:

Cerebral blood cavity 1;

first interface 11;

Heart Blood Chamber 2;

second interface 21;

The first pump body 3;

liquid 4;

Carotid thin-walled tube 5;

The second pump body 6;

Venous thin-walled tube 7;

External indicator light 8;

pressure sensor 9;

flow sensor 10;

controller 11;

Pacing device 12;

External display screen 13;

height sensor 14;

Timer 15.

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", Orientation indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation , so it cannot be interpreted as a limitation of the present utility model.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Referring to Fig. 1 to Fig. 2, the embodiment of the present invention provides a cardiopulmonary resuscitation model for nursing teaching, including: a human body model, a first pump body 3, a thin-walled tube, a pacemaker 12 and a controller 11.

Specifically, the human body model simulates the distribution of various tissues and organs inside the human body, especially the parts related to cardiopulmonary resuscitation, such as the brain, mouth, nose, airway, chest cavity, etc.; The blood cavity 1, the brain blood cavity 1 is used to simulate the brain, and a first interface 11 is arranged in it; the chest of the mannequin is provided with a heart blood cavity 2, and the heart blood cavity 2 is used to simulate a heart, and a liquid 4 is contained in it;

The first pump body 3 is set in the heart blood cavity 2 and immersed in the liquid 4;

The thin-walled tube includes a carotid thin-walled tube 5 , one end of the carotid thin-walled tube 5 is connected to the first pump body 3 , and the other end is connected to the first interface 11 of the brain blood cavity 1 . In the human body, the oxygen needed by the brain comes from the blood, and the blood is transmitted from the heart to various tissues and organs of the human body through the arteries, and the carotid artery is a blood channel connecting the brain and the heart. The required oxygen is transmitted by the carotid artery connecting the brain and the heart, so the carotid artery thin-walled tube 5 here is actually the carotid artery of the simulated human body, so the liquid 4 in the heart blood chamber 2 is passed through the carotid artery thin-walled tube. 5 flows to the blood chamber 1 of the brain.

The pacing device 12 is arranged in the chest cavity of the human body model to simulate the beating of the heart. The pacing device 12 here may be a vibrator whose vibration frequency is close to the beating frequency of the heart.

The controller 11 is electrically connected with the pacing device 12 and the first pump body 3; when the pacing device 12 beats, the controller 11 will send a signal and transmit it to the first pump body 3 to control the first pump body 3 to pump the heart blood The liquid 4 in 2 is transported into the thin-walled carotid tube 5, so that the liquid 4 flows into the blood cavity 1 of the brain through the thin-walled carotid tube 5.

In reality, when a cardiac arrest occurs, the heart will stop pumping blood into the arteries, so various tissues and organs of the human body will experience different degrees of hypoxia, but there is a certain amount of blood in the arteries, and these blood Contains a certain amount of oxygen, so after cardiac arrest, various organs of the human body can still get some oxygen, but this time is short. If the rescue and resuscitation is not performed in time after cardiac arrest, it will cause irreversible damage to the human brain and other vital organs and tissues of the human body after 4 to 6 minutes. The oxygen needed by the brain is transported by the heart through the carotid artery, and the heart itself is like a pump, which can pump blood out to the carotid artery. Therefore, the blood flow in the carotid artery is fast and the blood pressure is high. The force of the blood vessel wall is also large, so it can be judged whether the heart is beating according to the pulsation of the carotid artery during cardiopulmonary resuscitation.

Corresponding to the above actual situation, the brain blood cavity 1 corresponds to the human brain, the heart blood cavity 2 corresponds to the human ventricle, the carotid artery thin-walled tube 5 corresponds to the human carotid artery, and the pacemaker 12 corresponds to the human heart. Then when the pacing device 12 is beating, the controller 11 electrically connected to it sends out a signal and sends it to the first pump body 3, and the first pump body 3 sends the liquid 4 in the heart blood chamber 2 to the carotid artery thin-walled tube 5 , so that the liquid 4 flows to the brain blood cavity 1 through the carotid thin-walled tube 5 . The liquid 4 is transported through the first pump body 3, so its flow velocity in the thin-walled carotid tube 5 is fast, the blood pressure is high, and the force of the liquid 4 acting on the wall of the thin-walled carotid tube 5 is also relatively large, so it can The tube wall of the carotid thin-walled tube 5 is made to pulsate. But in fact, at the beginning of cardiac arrest, the heart re-beats after cardiopulmonary resuscitation, when the heart contracts to send the blood in the heart to the carotid artery, the blood pressure and flow rate are not greater than when the heart beats normally, so the carotid artery The force of the blood in the carotid artery on its vessel wall is also relatively small, which makes the pulsation of the carotid artery still relatively weak, so it is not easy for the rescuers to judge the pulsation of the carotid artery, so more practice is needed. And when pacing device 12 beats, the tube wall of carotid artery thin-walled tube 5 is not subjected to the active force of liquid 3 therein too, so the pulsation of carotid artery thin-walled tube 5 is also relatively weak, and this just coincides with cardiac arrest. The recovery of heartbeat after rescue is consistent, which is very convenient for learners to learn and judge the pulsation of carotid artery through this device, so as to practice the feeling of weak pulsation and reduce the probability of making mistakes in the actual rescue process. Simulates the flow of blood between the heart, carotid arteries, and brain, making it more realistic.

As a preferred embodiment of the present invention, the brain blood cavity 1 is provided with a second pump body 6, the heart blood cavity 2 is also provided with two interfaces 21, and the thin-walled tube also includes a vein thin-walled tube 7, and the vein thin-walled tube One end of 7 is connected to the second pump body 6, and the other end is connected to the second interface 21, so that the liquid 4 in the brain blood cavity 1 can be returned to the heart blood cavity 2 through the second pump body 6 through the venous thin-walled tube 7.

In the blood circulation of the human body, the oxygen needed by each organ of the human body is transported to each arterial vessel after the heart contracts, but in the end, it needs to return to the heart through the venous blood vessel, then, correspondingly, the blood in the carotid artery flows to the back of the brain After the substances in the brain react with oxygen, the blood containing carbon dioxide flows back to the heart through the veins connected to the brain, thus realizing the blood circulation in the brain. Similar to this, a second pump body 6 is provided in the brain blood cavity 1, and a switch is electrically connected to the second body 6, and the liquid 4 is delivered to the heart blood cavity 2 in the carotid artery thin-walled tube 5 When the switch of the second pump body 6 is turned on, the liquid 4 in the heart blood chamber 2 can be pumped out to the vein thin-walled tube 7 connected to the second pump body 6, so that the liquid returns to the heart blood chamber 2, This is similar to the blood circulation process of the human brain, so that the liquid 4 can be recycled, and the time for learners to learn cardiopulmonary resuscitation is greatly extended due to the circulation of the liquid 4, and this process is very similar to the flow of blood in the human brain. Similar, so it looks very realistic.

Further, a flow sensor 10 is arranged in the airway of the human body model, and an external display screen 13 is arranged outside the human body model, and the flow sensor 10 and the external display screen 13 are electrically connected with the controller 11. , the external display screen 13 can display the gas flow rate sensed by the flow sensor 10 . In the actual artificial respiration, the volume of each insufflation is 700-1000ml (or 10ml/kg) is the most suitable, the ventilation frequency should be 10-12 times/min, and the duration of each insufflation lasts for 2 seconds. The patient's chest rises and falls. That is to say, when artificial respiration is performed, the amount of air blowing is very important. If there is no chest rise or increased resistance when inhaling, it is likely that the airway is not open or there is a foreign object in the airway. Guarantee the amount of air blowing, therefore, the rescue effect will definitely be affected. Therefore, when performing cardiopulmonary resuscitation exercises, in addition to learning to judge whether the airway is open and whether there are foreign objects blocking the airway, it is also necessary to grasp the amount of air blowing each time, so a flow sensor 10 is arranged in the airway of the mannequin. , and the flow sensor 10 is electrically connected to an external display screen 13, which can help the learner to grasp the blowing volume of each blowing, so as to reduce the possibility of rescue failure when actually carrying out the rescue.

As another preferred embodiment of the present invention, a timer 15 for setting the pacing time is also provided electrically connected with the controller 11 . The effective rescue time after cardiac arrest is short, only 4 to 6 minutes. If the rescue is not completed within this time, it will cause irreversible damage to the human brain and other important organs of the human body. Therefore, when learning cardiopulmonary resuscitation, learners should also It is necessary to grasp the time, so a timer for controlling the pacing of the pacing device 12 can be set, and the timing duration of the timer 15 is not more than 6 minutes, which means that the effective rescue time is within 6 minutes, and if it exceeds 6 minutes. Minutes, the pacing device 12 just produces a pulsation, and the learner needs to judge the pulsation of the carotid thin-walled tube 5 when the pacing device 12 is pulsating, so as to practice the feeling to the weak pulsation. The setting of the timer 15, on the one hand, is to cultivate the learner's awareness of racing against time and learning to control the time when performing rescue, on the other hand, it can detect the number of times and the air flow of the learner blowing into the airway within the set time, In order to test the standardization of its operation; because in the actual rescue, the grasp of time, the number of times and the air flow into the airway have a great impact on the rescue results.

Furthermore, the human chest cavity has certain flexibility, so a compressible member needs to be arranged in the chest cavity of the human body model for simulating the compression of the chest during cardiopulmonary resuscitation. The compressible member is made of various materials, for example, it can be made of elastic foam material or spring.

Further, a pressure sensor 9 is arranged in the tube wall of the carotid artery thin-walled tube 5, and an external indicator light 8 is arranged outside the human body model, and the pressure sensor 9 and the external indicator light 8 are electrically connected to the controller 11. When the tube wall of the wall tube 5 is subjected to the pressure generated by the liquid 4 flowing through the tube, the external indicator light 8 flashes red light, and the pressure value here is less than the blood pressure value under normal conditions. When the pacing device 12 is pulsating, the first pump body 3 will transport the liquid 4 in the blood cavity 2 of the heart to the thin-walled carotid tube 5, so the pressure and flow rate of the liquid entering the thin-walled carotid tube 5 are relatively high , the pressure on the tube wall of the carotid thin-walled tube 5 is also relatively large, and a pressure sensor 9 is arranged on the inside of the tube wall, and an external indicator light 8 is arranged outside the human body model, and the pressure sensor 9, the controller 11 and the external The indicator light 8 is electrically connected, so when the tube wall of the carotid artery thin-walled tube 5 is subjected to the pressure generated by the liquid flowing through the tube, the external indicator light 8 flashing red light can well assist the learner to judge the carotid artery thin-walled tube. The pulsation of the tube 5, because even if the tube wall of the thin-walled tube 5 of the carotid artery is under greater pressure, it is not easy for the human body to touch the thin-walled tube 5 of the carotid artery to feel whether it is pulsating. When the carotid artery is pulsating, you can use the external indicator light 8 to assist in judging. If the external indicator light 8 is on and flashing red, but you have not judged it, it means that you have certain problems in your judgment, and you need to find out the problem. If you can feel the weaker beat, then the probability of making mistakes can be greatly reduced in actual rescue.

A height sensor 14 is arranged in the thorax, and the height sensor 14 is electrically connected with the controller 11 and the external indicator light 8. When pressing the compressible member to make the depression of the chest cavity to a depth of 4-5 cm, the external indicator light 8 flashes yellow light. In actual rescue, it is generally required that the compression depth of external chest compressions reach 4-5 cm, which is about 1/3 of the thickness of the thorax. At this time, the compression effect is the most ideal. When practicing cardiopulmonary resuscitation, it seems that it is not easy to grasp that the compression depth reaches 4-5 cm, so the height sensor 14 and the external indicator light 8 connected with it can be used. When the compression depth reaches 4-5 cm, the external indicator light 8 will It will flash yellow. At this time, learners can carefully grasp the range of 4-5cm depth. After many times of practice, they will be able to master the compression depth more proficiently.

The thin-walled tube is made of plastic material, and the plastic material is soft in texture. When the liquid flows inside it, it can generate pulsation, which makes the device more realistic.

In summary, according to the cardiopulmonary resuscitation model for nursing teaching provided by the utility model, in addition to being provided with a carotid thin-walled tube simulating the carotid artery to help learn and judge the pulsation of the carotid artery, it is also provided with a venous thin-walled tube simulating a vein, which can Simulating the blood circulation of the human body makes the device more realistic, and because the liquid in the blood cavity of the heart can be recycled, it can also increase the use time; a timer is set on the pacemaker, and the effective rescue time can be set through the timer. In the rescue process, learners can grasp the rescue time, the number of insufflations and the air flow, so that learners can quickly master the skills of cardiopulmonary resuscitation. In case of emergency, they can calmly deal with it and reduce the probability of making mistakes.

Claims (8)

1. A cardiopulmonary resuscitation model for nursing teaching, characterized in that, comprising: Human body model, the human body model is provided with a brain blood cavity, a heart blood cavity and a chest cavity, the brain blood cavity is provided with a first interface, and the heart blood cavity is filled with liquid; a first pump body, the first pump body is placed in the blood chamber of the heart; A thin-walled tube, the thin-walled tube includes a carotid artery thin-walled tube, one end of the carotid artery thin-walled tube is connected to the first pump body, and the other end is connected to the first interface of the brain blood cavity; A pacing device, the pacing device is arranged in the chest cavity of the human body model to simulate heart beat; a controller, the controller is electrically connected to the pacemaker and the first pump body; When the pacing device is pulsing, the controller sends a signal and transmits it to the first pump body, controlling the first pump body to deliver the fluid in the blood chamber of the heart to the thin-walled carotid artery so that the liquid flows into the brain blood cavity through the carotid thin-walled tube. 2. The cardiopulmonary resuscitation model for nursing teaching according to claim 1, wherein a second pump body is arranged in the blood chamber of the brain, a second interface is also arranged in the blood chamber of the heart, and the thin-walled tube It also includes a venous thin-walled tube, one end of which is connected to the second pump body, and the other end is connected to the second interface, so as to transfer the blood in the blood cavity of the brain through the second pump body. Fluid returns to the blood cavity of the heart through the thin-walled venous tube. 3. The cardiopulmonary resuscitation model for nursing teaching according to claim 1, wherein a flow sensor is arranged in the airway of the mannequin, an external display screen is provided outside the mannequin, and the flow sensor, the The external display screen is electrically connected with the controller, the flow sensor detects the gas flow rate when blowing in the airway of the human body model, and the controller controls the external display screen to display the gas flow rate. 4. The cardiopulmonary resuscitation model for nursing teaching according to claim 1, wherein the controller is electrically connected to a timer for setting pacing time. 5 . The cardiopulmonary resuscitation model for nursing teaching according to claim 1 , wherein a compressible member is arranged in the chest cavity of the mannequin for simulating chest compression during cardiopulmonary resuscitation. 6. according to the described nursing teaching cardiopulmonary resuscitation model of claim 5, it is characterized in that, the tube wall of described carotid artery thin-walled tube is provided with pressure sensor, and described mannequin exterior is provided with external indicator light, and described pressure The sensor and the external indicator light are electrically connected to the controller, and when the wall of the carotid thin-walled tube is subjected to the pressure generated by the liquid flowing through the tube, the external indicator light flashes red. 7. The cardiopulmonary resuscitation model for nursing teaching according to claim 6, wherein a height sensor electrically connected to the controller and the external indicator light is also arranged in the chest cavity of the mannequin, When the compressible member sags the chest cavity by 4-5 cm, the external indicator light will flash yellow. 8. The cardiopulmonary resuscitation model for nursing teaching according to claim 1, wherein the thin-walled tube is made of plastic material.