Pericardiocentesis simulation training device

Abstract

The utility model discloses a pericardiocentesis simulation training device which comprises a pericardial cavity simulation assembly, a human body silica gel model, a static pressure liquid supply pipe set and a pulsation circulation pipe set. The pericardial cavity simulation assembly is accommodated in the heart position of the human body silica gel model; the pericardial cavity simulation assembly comprises a pericardial cavity and a heart silica gel model; and the pericardial cavity is arranged on the outer side of the heart silica gel model and is communicated with the static pressure liquid supply pipe group through a pipeline. The device can be imaged through the ultrasonic probe, so that an operator can visually see whether puncture succeeds or not; liquid different from the pericardial cavity in color is introduced into the simulated heart, an obvious blood return phenomenon can be generated after puncture enters the heart silica gel model, an operator can find operation errors in time when puncture is too deep, and forward information feedback in the training process is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of medical simulation equipment, and in particular to a pericardiocentesis simulation training device. Background Art

[0002] Pericardial effusion refers to the accumulation of excessive fluid within the pericardial cavity (normally, approximately 30 to 50 ml of pericardial fluid). This fluid can be fluid, serous, fibrinous, purulent, or bloody. The pericardium is divided into a fibrous layer and a serous layer, with the space between the two layers forming the pericardial cavity. Normally, a small amount of fluid exists within the pericardial cavity, providing lubrication. When the fluid within the pericardial cavity exceeds the normal level, a pericardial effusion forms.

[0003] Treatment options for pericardial effusion include medication, pericardiocentesis, and surgery. Pericardiocentesis can alleviate symptoms and allow for the extraction of pericardial fluid for analysis, aiding diagnosis and treatment. Pericardiocentesis is also used to aspirate fluid during cardiac tamponade, treat pericardial empyema, and treat purulent and tuberculous pericarditis. Pericardiocentesis is widely used clinically as a treatment and diagnostic tool for pericardial diseases.

[0004] Pericardiocentesis is currently mainly performed manually. Although the existing operating procedures have clear regulations on the puncture position and angle, due to the special location of the pericardial cavity, if the puncture depth is too deep, the visceral layer will be punctured, and if the puncture depth is too shallow, the parietal layer cannot be punctured, and the fluid in the pericardial cavity cannot be extracted or drained.

[0005] Operators are required to undergo pre-job training before taking up their posts. The training is mainly carried out through simulation training equipment, such as the pericardiocentesis surgery training system disclosed in CN202120703957.8. The system has a simple structure and only includes: a heart model and a pericardium model, but does not include: a human body model. However, in actual operation, the puncture operation starts from the human epidermis, which makes it impossible for the operator to accurately identify the puncture position and depth on the human body.

[0006] Another example is the cardiac preload hemodynamic simulator disclosed in CN202321262544.6. Although the simulator is arranged in a shell, the device can only display the function of auxiliary equipment to measure the changes in various values. It is a multifunctional hemodynamic dynamic change simulator and is not used for training operators in the actual puncture process.

[0007] Another example is the ultrasound-guided pericardiocentesis training model disclosed in CN202310997382.9. This model covers the outside of the chest and abdomen model with an elastic membrane made of skin-colored silicone gel film, and rolls up the elastic membrane at the outer end of the second rotating shaft by rotating a second rotating shaft. The elastic membrane with puncture marks is rolled up, and the elastic membrane without marks can be re-covered on the outer end of the chest and abdomen model, thereby covering the puncture marks left on the chest and abdomen model to avoid affecting people's accurate judgment of the puncture position. In order to achieve the purpose of repeated training, the device used is complex in structure and the training is difficult.

[0008] Existing pericardial puncture training devices have the following problems: 1. The operator cannot intuitively see whether the puncture position is correct; 2. The lack of a model similar to the human body structure makes it impossible for trainees to effectively simulate the puncture position and angle on the human body surface, affecting the model training effect; 3. When the puncture is too deep into the simulated heart, there is a lack of an effective prompt signal, which affects the normal progress of training; 4. The pericardial fluid in the existing training device is set through a circulation pipeline, but because the volume of the circulating fluid is constant, when simulating puncture and aspiration, it is impossible to effectively simulate the actual feel of puncturing and aspirating pericardial fluid under real conditions, affecting the training effect.

[0009] The information disclosed in the background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to ordinary technicians in this field. Utility Model Content

[0010] In response to the above-mentioned technical problems, the present application provides a pericardiocentesis simulation training device, which can use ultrasound probe imaging to facilitate the operator to intuitively see whether the puncture is successful; a liquid of a different color from that in the pericardial cavity is introduced into the simulated heart, and obvious blood return will occur after puncturing into the silicone model of the heart, which makes it easier for the operator to promptly discover operational errors when the puncture is too deep, thereby realizing positive information feedback during the training process.

[0011] The present application provides a pericardiocentesis simulation training device, comprising: a pericardial cavity simulation component, a human silicone model, a static pressure liquid supply tube group, and a pulsating circulation tube group; the pericardial cavity simulation component is accommodated and arranged at the heart position of the human silicone model;

[0012] The pericardial cavity simulation component includes: a pericardial cavity and a heart silicone model; the pericardial cavity is arranged outside the heart silicone model and is connected to the static pressure liquid supply tube group pipeline;

[0013] A heart cavity is set in the heart silicone model and is connected to the pulsating circulation tube group pipeline.

[0014] Preferably, the static pressure liquid supply tube set includes: a liquid storage tank; the liquid storage tank is connected to the pericardial cavity pipeline.

[0015] Preferably, a liquid adding tube is provided on the pericardial cavity; and a one-way valve is provided on the extending end of the liquid adding tube.

[0016] Preferably, the pulsating circulation tube group includes: a pulse pump, an injection interface; the liquid inlet of the pulse pump is connected to the liquid outlet pipeline of the silicone heart model; the liquid outlet of the pulse pump is connected to the liquid inlet pipeline of the silicone heart model; the injection interface is arranged on the pipeline connecting the liquid outlet of the pulse pump and the liquid inlet of the silicone heart model.

[0017] Preferably, when the pulse pump is pumping, the silicone heart model generates a systolic pressure greater than 110 mmHg; when the pulse pump is discharging, the silicone heart model generates a diastolic pressure of 70 to 80 mmHg.

[0018] Preferably, the pulsating circulation tube set includes: a solenoid valve; the solenoid valve is arranged on a pipeline connecting the liquid inlet of the pulse pump and the liquid outlet of the heart silicone model.

[0019] Preferably, puncture operation indication points are set on the surface of the human body silicone model.

[0020] Preferably, it comprises: an ultrasound probe and a display; the ultrasound probe is arranged in the human body silicone model and is arranged facing the puncture position of the pericardial cavity simulation component; the ultrasound probe and the display are electrically connected.

[0021] Preferably, it comprises: a power supply module; the power supply module is electrically connected to the ultrasound probe and the display respectively.

[0022] The beneficial effects of this application include:

[0023] 1) The pericardiocentesis simulation training device provided in this application prevents the overflow of pericardial simulation fluid caused by the pulse pulsation of the silicone heart model by means of a one-way valve set on the pericardial cavity outlet tube. At the same time, a water tank is set on the pericardial cavity inlet tube to ensure that the pericardial fluid is easy to aspirate during multiple simulation trainings, producing a suction feel different from the heart fluid in the silicone heart model, which is conducive to training operators to distinguish the location of the aspirated fluid from a sensory perspective.

[0024] 2) The pericardiocentesis simulation training device provided in this application has a silicone heart model connected to a pulse pump pipeline, cardiac fluid circulates in the silicone heart model, and pulses generate systolic and diastolic pressures in the silicone heart model. After the operator mistakenly inserts the syringe into the simulated heart cavity, obvious blood return will appear in the syringe. The auxiliary ultrasound examination effectively prompts the operator to make an operational error, so that the operator can correct the operation and re-train.

[0025] 4) The pericardiocentesis simulation training device provided in this application is housed in a silicone human model, which facilitates the operator to perform puncture operations according to the operating procedures, aiming at the operating site on a 1:1 ratio human body structure, thereby improving the effectiveness of training and reducing the gap between actual training and the real human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A partial perspective schematic diagram of a pericardiocentesis simulation training device according to at least one embodiment of the present application;

[0027] Figure 2 A schematic diagram of a pericardial cavity simulation component in at least one embodiment provided in this application;

[0028] Figure 3 A schematic diagram of a module in at least one embodiment provided in this application;

[0029] Legend:

[0030] Ultrasound probe 21, display 211, pulse pump 13, power supply module 22, human silicone model 1, heart silicone model 11, pericardial cavity 12, cardiac cavity fluid outlet tube 111, cardiac cavity fluid inlet tube 112, injection port 131, solenoid valve 132, syringe 3, fluid storage tank 121, exhaust valve 122, one-way valve 123. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] The controller used in this embodiment is an existing structure, and the control circuit can be implemented through simple programming by technicians in this field. It is common knowledge in this field and is only used without modification. Therefore, the control method and circuit connection will not be described in detail.

[0034] The technical means that are not described in detail in this application and are not used to solve the technical problems of this application are all set according to the common knowledge in this field, and can be implemented in a variety of common knowledge settings.

[0035] See also Figures 1 to 3The pericardial puncture simulation training device provided in this application includes: a silicone heart model 11 and a silicone pericardial membrane disposed outside the silicone heart model 11, with a pericardial cavity 12 disposed between the silicone pericardial membrane and the silicone heart model 11. The pericardial cavity 12 is sealed and disposed outside the silicone heart model 11. The pericardial cavity 12 is filled with pericardial fluid. The pericardial fluid used is different in color from the cardiac fluid infused into the inner cavity of the silicone heart model 11, and the difference is significant, so that the operator can promptly identify the cardiac fluid when extracting it during training.

[0036] The inner cavity of the silicone heart model 11 is connected to the pulse pump 13 via a cardiac cavity outlet tube 111 and a cardiac cavity inlet tube 112. An injection port 131 is provided on the cardiac cavity inlet tube 112, which can be opened and closed as needed. A solenoid valve 132 is installed on the cardiac cavity outlet tube 111. During use, cardiac fluid is injected into the inner cavity of the silicone heart model 11 through the injection port 131. The pulse pump 13 is then turned on. During the pumping process, the pulse pump 13 generates systolic pressure, causing the silicone heart model 11 to contract. When the pulse pump 13 stops pumping, a diastolic pressure of 70-80 mmHg is generated, causing the silicone heart model 11 to relax. The operator can feel the heartbeat on the outer wall of the silicone human body model 1, facilitating accurate heart location during training. This arrangement ensures that if a needle is mistakenly inserted into the cardiac cavity, the diastolic pressure will cause cardiac fluid to enter the syringe 3, prompting the operator to stop inserting the needle. The silicone material used in this device is a self-healing silicone material commonly used in the art, specifically a commercially available product.

[0037] During simulation training, solenoid valve 132 is always open, facilitating liquid circulation within the silicone heart model 11. When the pulse pump 13 pumps, the instantaneous pressure at the port where the cardiac cavity outlet tube 111 connects to the silicone heart model 11 during contraction is greater than 110 mmHg, resulting in a diastolic pressure of 70-80 mmHg, effectively simulating the heartbeat process. Furthermore, after the needle is inserted into the cardiac cavity, obvious blood return within syringe 3 can be observed, alerting the operator to an operational error. This blood return, along with the acquisition of an image by the ultrasound probe 21, indicates an operational error. This blood return can occur when the operator's hand is too quick, causing the ultrasound probe 21 to be inserted into the silicone heart model 11 before an image is acquired.

[0038] An ultrasound probe 21 is installed in the human silicone model 1 outside the pericardial silicone membrane, and the ultrasound probe 21 and the display 211 are electrically connected. The display 211 is set outside the human silicone model 1 and displays the image obtained by the ultrasound probe 21 in real time. The ultrasound probe 21 is set directly opposite the puncture site of the pericardial silicone membrane. The ultrasound probe 21 is a commercially available product and can obtain the puncture conditions of the pericardial cavity environment through the pericardial silicone membrane. During operation, if the needle cannot be seen entering the pericardial cavity at the puncture site, the operator can be prompted that the operation is wrong. The device can also be used to assess the results of operator training.

[0039] The puncture site is set according to the puncture site specified in the current pericardiocentesis operating procedures. The site can be set on the surface of the human silicone model 1 as needed to facilitate accurate identification by the operator.

[0040] A liquid-adding tube and a liquid-storing tube are provided on the pericardial cavity 12. The pericardial fluid perfused into the pericardial cavity 12 is stored in a liquid storage tank 121. The liquid storage tank 121 and the liquid storage tube of the pericardial cavity 12 are connected. A one-way valve 123 is provided on the extended end of the liquid-adding tube on the pericardial cavity 12. The one-way valve 123 only allows liquid to flow into the pericardial cavity 12. At the same time, pericardial fluid can be perfused into the pericardial cavity 12 through the one-way valve 123. The pericardial fluid in this application is a pericardial simulation and can be various liquids, such as water. This arrangement ensures that no liquid backflow occurs after the needle is inserted into the pericardial cavity 12, making it easier for the operator to identify the puncture depth.

[0041] During use, the operator holds the syringe 3 and punctures the human silicone model 1. After the needle enters the pericardial cavity 12, the needle shape can be seen under the ultrasound probe 21, indicating that the puncture is successful. At this time, the operator uses the syringe 3 to extract the pericardial fluid in the pericardial cavity 12 and withdraws the syringe 3 to complete the operation. When extracting pericardial fluid, the liquid in the fluid reservoir 121 enters the syringe 3 through the fluid reservoir tube. At the same time, the one-way valve 123 is connected to the outside air, thereby ensuring pressure balance in the pericardial cavity 12 and ensuring normal suction operation.

[0042] When the operator mistakenly punctures the heart silicone model 11 with the needle, the pressure generated by the pulse pump 13 causes obvious blood backflow in the syringe 3. At the same time, combined with the imaging results of the ultrasound probe 21, the operator can accurately know the operation error.

[0043] In a specific embodiment, an exhaust valve 122 is provided on the liquid storage tank 121. The exhaust valve 122 can perform an exhaust operation according to the pressure change to ensure that the syringe that has been punctured into the pericardial cavity can perform a liquid suction operation.

[0044] In a specific embodiment, a perspective window is provided on the side wall of the fluid storage tank 121 to facilitate the operator to replenish the pericardial fluid in time according to the liquid level in the fluid storage tank 121 .

[0045] In a specific embodiment, the human body silicone model 1 is arranged in a 1:1 ratio according to the human body structure, and a puncture positioning mark is set at a position corresponding to the human body above the pericardial cavity simulation component.

[0046] In a specific embodiment, a switch is provided on the pulse pump 13 to control the on and off of the pulse pump 13 .

[0047] In a specific embodiment, it includes: a power supply module 22; the power supply module 22 is electrically connected to the pulse pump 13, the ultrasonic probe 21, and the display 211 respectively, so as to realize power supply to the above components respectively and ensure the normal operation of the device.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pericardiocentesis simulation training device, characterized in that: include: Pericardial cavity simulation component, human body silicone model (1), static pressure fluid supply tube set, pulsating circulation tube set; The pericardial cavity simulation component is accommodated in the heart position of the human body silicone model (1); The pericardial cavity simulation component comprises: a pericardial cavity (12) and a heart silicone model (11); the pericardial cavity (12) is arranged outside the heart silicone model (11) and is connected to the static pressure liquid supply pipe group pipeline; A heart cavity is provided in the heart silica gel model (11) and is connected to the pulsating circulation tube group pipeline.

2. The pericardiocentesis simulation training device according to claim 1, characterized in that: The static pressure liquid supply tube assembly comprises: a liquid storage tank (121); the liquid storage tank (121) is connected to the pericardial cavity (12) pipeline.

3. The pericardiocentesis simulation training device according to claim 2, characterized in that: A liquid adding tube is provided on the pericardial cavity (12); a one-way valve (123) is provided on the extended end of the liquid adding tube.

4. The pericardiocentesis simulation training device according to claim 1, characterized in that: The pulsating circulation tube set comprises: a pulse pump (13), a liquid injection interface (131); the liquid inlet of the pulse pump (13) is connected to the liquid outlet pipeline of the heart silicone model (11); the liquid outlet of the pulse pump (13) is connected to the liquid inlet pipeline of the heart silicone model (11); and the liquid injection interface (131) is arranged on the pipeline connecting the liquid outlet of the pulse pump (13) and the liquid inlet of the heart silicone model (11).

5. The pericardiocentesis simulation training device according to claim 4, characterized in that: When the pulse pump (13) is pumping, the heart silicone model (11) generates a systolic pressure greater than 110 mmHg; when the pulse pump (13) is discharging, the heart silicone model (11) generates a diastolic pressure of 70 to 80 mmHg.

6. The pericardiocentesis simulation training device according to claim 4, characterized in that: The pulsating circulation pipe group comprises: an electromagnetic valve (132); the electromagnetic valve (132) is arranged on a pipe connecting the liquid inlet of the pulse pump (13) and the liquid outlet of the heart silicone model (11).

7. The pericardiocentesis simulation training device according to claim 1, characterized in that: The human body silicone model (1) has puncture operation indication points set on its body surface.

8. The pericardiocentesis simulation training device according to claim 1, characterized in that: include: An ultrasonic probe (21) and a display (211); the ultrasonic probe (21) is arranged in a human body silicone model (1) and is arranged facing the puncture position of the pericardial cavity simulation component; the ultrasonic probe (21) and the display (211) are electrically connected.

9. The pericardiocentesis simulation training device according to claim 1, characterized in that: include: A power supply module (22); the power supply module (22) is electrically connected to the ultrasonic probe (21) and the display (211) respectively.

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