In-vitro simulation model of atrial shunt

Abstract

The invention relates to the technical field of atrial shunts, and particularly discloses an atrial shunt in-vitro simulation model which comprises an esophageal ultrasonic probe, a pipeline and an ultrasonic probe, the tail ends of the esophageal ultrasonic probe and the pipeline are connected with a pleuroperitoneal cavity simulator, and monitoring cameras are symmetrically arranged in the pleuroperitoneal cavity simulator; an individualized 3D printing heart model established based on patient imaging data is installed in the thoracic and abdominal cavity simulator, and a vein pipeline is installed on one side of the surface of the 3D printing heart model. According to the in-vitro simulation model for the atrial shunt, the 3D printing heart model and the pleuroperitoneal cavity simulator are arranged, a highly-reduced individualized and repeatable operation training scene is provided for surgeons, medical students and engineers, the actual clinical operation risk is remarkably reduced, the core operation process of atrial shunt implantation can be completely simulated, and the operation efficiency is improved. Meanwhile, a monitoring camera in the pleuroperitoneal cavity simulator, an esophageal ultrasonic probe and a pipeline can feed back operation details in real time, and the operation success rate is increased.

Description

Technical Field

[0001] This invention relates to the field of atrial shunt technology, specifically to an in vitro simulation model of an atrial shunt. Background Technology

[0002] The atria are important components of the heart, consisting of two hollow structures in the upper part of the heart: the left and right atria. They primarily store blood and assist in pumping blood, serving as a crucial link in the circulatory system connecting venous return and ventricular ejection. Simultaneously, the atria are hollow muscular structures within the heart, one on each side. Heart failure patients often experience left ventricular diastolic dysfunction, leading to obstructed blood flow and increased pressure in the left atrium, resulting in symptoms such as pulmonary venous congestion and dyspnea. The atrial shunt external simulation model establishes a tiny, fixed, or adjustable channel in the interatrial septum, allowing blood to flow from the higher-pressure left atrium to the lower-pressure right atrium as needed. This minimally invasive interventional device, developed for heart failure, aims to improve patient symptoms and quality of life. A safe, effective, and highly individualized external simulation model is urgently needed during or to accelerate the progression of heart failure, providing repeatable training for operators, medical students, and engineers to reduce complications during actual procedures, improve success rates, and further increase the clinical application and success rate of atrial septal shunt placement. Summary of the Invention

[0003] The purpose of this invention is to provide an external simulation model of an atrial shunt to solve the problem mentioned in the background art that it is impossible to perform simulation training and repeatable training.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an external simulation model of an atrial shunt, comprising: an esophageal ultrasound probe, a tubing and an ultrasound probe, wherein the ends of the esophageal ultrasound probe and the tubing are connected to a thoracic and abdominal cavity simulator, and monitoring cameras are symmetrically arranged inside the thoracic and abdominal cavity simulator; The thoracic and abdominal simulator contains an individualized 3D-printed heart model based on the patient's imaging data. A venous line is installed on one side of the surface of the 3D-printed heart model, and a shunt assembly is embedded inside the venous line.

[0005] Preferably, the end of the esophageal ultrasound probe and tubing is inserted into the thoracic and abdominal simulator and connected to the 3D-printed heart model.

[0006] Using the above technical solution, the 3D-printed heart model can be removed from the chest and abdominal cavity simulator.

[0007] Preferably, the thoracic and abdominal cavity simulator has a detection area inside, and the detection area of ​​the thoracic and abdominal cavity simulator is set in correspondence with the 3D printed heart model.

[0008] Using the above technical solution, the thoracic and abdominal cavity simulator is filled with a human internal environment simulation fluid to highly simulate the human internal environment.

[0009] Preferably, the monitoring cameras are symmetrically installed on the outside of the 3D printed heart model, and the inside of the 3D printed heart model is respectively set as the left atrium and the right atrium.

[0010] Using the above technical solution, a monitoring camera can also detect the status of the 3D printed heart model.

[0011] Preferably, the end of the venous conduit is configured as a Y-shaped structure to simulate the inferior vena cava and the left and right femoral veins respectively, and the venous conduit and the bottom part of the esophageal ultrasound probe and the conduit belong to different conduits.

[0012] Using the above technical solution, the bottom of the venous conduit is divided into two branches, which respectively simulate the left and right femoral veins, and transport blood through the venous conduit.

[0013] Preferably, the diverter assembly includes a delivery pipe and a diverter, wherein the delivery pipe in the diverter assembly is installed inside via one side of the bottom of the vein, and the diverter in the diverter assembly is installed at the end of the delivery pipe.

[0014] Using the above technical solution, the shunt assembly is inserted into the interior of the venous tubing through a venous branch, with one side being the main access route and the other side being the alternative access route.

[0015] Preferably, the shunt of the shunt assembly is inserted into the right atrium of the 3D-printed heart model via a venous line and is eventually released and placed at a predetermined position in the interatrial septum.

[0016] Using the above technical solution, the end of the shunt assembly is connected to the 3D printed heart model.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the in vitro simulation model of the atrial shunt: 1. A 3D-printed heart model and a chest and abdominal cavity simulator were set up to provide surgeons, medical students and engineers with a highly realistic, individualized and repeatable operation training scenario, which significantly reduces the risk of actual clinical operation. It can completely simulate the core operation process of atrial shunt implantation. At the same time, the monitoring camera, esophageal ultrasound probe and tubing in the chest and abdominal cavity simulator can provide real-time feedback on operation details, improving the success rate of surgery. 2. Equipped with an ultrasound probe and monitoring camera, it can provide real-time feedback on operational details, helping users to master key steps such as instrument implantation path and shunt channel establishment, reducing complications such as instrument displacement and improper shunt orifice diameter caused by unfamiliarity with the operation during clinical surgery. At the same time, the entire simulation device can be placed under contrast-enhanced fluoroscopy equipment to further simulate the surgical process. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention.

[0019] In the image: 1. Esophageal ultrasound probe and tubing; 2. Thoracic and abdominal cavity simulator; 3. Monitoring camera; 4. Intravenous tubing; 5. Ultrasound probe; 6. 3D printed heart model; 7. Shunt assembly. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1 The present invention provides a technical solution: an external simulation model of an atrial shunt, including an esophageal ultrasound probe and tubing 1, a thoracic and abdominal cavity simulator 2, a monitoring camera 3, a venous tubing 4, an ultrasound probe 5, a 3D printed heart model 6, and a shunt assembly 7; This external simulation model of the atrial shunt facilitates simulation on the human body and allows for easy internal observation. The specific implementation method is as follows: The esophageal ultrasound probe and tubing 1 are connected to a thoracic and abdominal simulator 2 at their ends. Monitoring cameras 3 are symmetrically arranged inside the thoracic and abdominal simulator 2. A 3D-printed heart model 6 is installed inside the thoracic and abdominal simulator 2, and a venous tubing 4 is installed on one side of the surface of the 3D-printed heart model 6. The venous tubing 4 is configured as a vascular simulation pathway for a shunt assembly 7. The ends of the esophageal ultrasound probe and tubing 1 are inserted into the thoracic and abdominal simulator 2 and connected to the 3D-printed heart model 6. A detection area is set inside the thoracic and abdominal simulator 2, and the detection area of ​​the thoracic and abdominal simulator 2 corresponds to that of the 3D-printed heart model 6. Monitoring cameras 3 are symmetrically installed on the 3D-printed heart model 6. The outer side of the heart model 6 and the interior of the 3D-printed heart model 6 are respectively set as the left atrium and the right atrium. The end of the venous conduit 4 is set as a Y-shaped structure to simulate the inferior vena cava and the left and right femoral veins respectively. The end of the venous conduit 4 is a different passage from the esophageal ultrasound probe and the bottom of the conduit 1. The shunt assembly 7 includes a delivery conduit and a shunt. The delivery conduit in the shunt assembly 7 enters the interior through the venous conduit 4. The shunt in the shunt assembly 7 can reach the end of the delivery conduit through the venous conduit 4. The shunt of the shunt assembly 7 is inserted into the right atrium of the 3D-printed heart model 6 through the venous conduit 4 and released and placed in the interatrial septum at the set position.

[0022] The 3D-printed heart model 6 is precisely placed into the preset detection area of ​​the thoracic and abdominal cavity simulator 2. The 3D-printed heart model 6 is aligned with the reference and the simulated heart is fixed. At this time, the human body environment simulation fluid is injected into the thoracic and abdominal cavity simulator 2 to simulate the physiological environment of the human thoracic and abdominal cavities. At the same time, the end of the Y-shaped venous tube 4 is connected to the surface interface of the 3D-printed heart model 6. The monitoring camera 3 is activated and the shooting angle is adjusted to the 3D-printed heart model 6. At this time, the ultrasound probe 5 is placed in the detection area to capture the operation image inside the 3D-printed heart model 6 in real time. At this point, the operator holds the shunt assembly 7 and slowly inserts it along the branch channel on one side of the bottom of the venous line 4. With the real-time image guidance of the monitoring camera 3 and the ultrasound probe 5, the end of the line is pushed along the internal channel of the venous line 4 until the shunt assembly 7 reaches the entrance of the inferior vena cava in the right atrium of the 3D printed heart model 6. The shunt of the shunt assembly 7 can be installed inside the right atrium of the 3D printed heart model 6 through operations such as interatrial septal puncture. The visual detection data of the monitoring camera 3 is used to fine-tune the angle and depth of the shunt assembly 7 to ensure that the shunt is accurately aligned with the preset position of the interatrial septum of the 3D printed heart model 6.

[0023] Working principle: When using the external simulation model of the atrial shunt, a venous line 4, an ultrasound probe 5, a 3D printed heart model 6, and a shunt assembly 7 are set up to facilitate the simulation of the human body and increase the overall practicality.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An external simulation model of an atrial shunt, including: An esophageal ultrasound probe and tubing (1) and an ultrasound probe (5) are provided. The end of the esophageal ultrasound probe and tubing (1) is connected to a thoracic and abdominal cavity simulator (2). A monitoring camera (3) is symmetrically arranged inside the thoracic and abdominal cavity simulator (2). The feature is that: a 3D printed heart model (6) is installed inside the thoracic and abdominal cavity simulator (2), and a venous pipeline (4) is installed on one side of the surface of the 3D printed heart model (6), and a shunt assembly (7) is embedded inside the venous pipeline (4). The end of the esophageal ultrasound probe and tubing (1) is inserted into the thoracic and abdominal simulator (2) and connected to the 3D printed heart model (6); The thoracic and abdominal cavity simulator (2) has a detection area inside, and the detection area of ​​the thoracic and abdominal cavity simulator (2) is set in correspondence with the 3D printed heart model (6).

2. The in vitro simulation model of the atrial shunt according to claim 1, characterized in that: The monitoring camera (3) is symmetrically installed on the outside of the 3D printed heart model (6), and the interior of the 3D printed heart model (6) is respectively set as the left atrium and the right atrium.

3. The in vitro simulation model of the atrial shunt according to claim 1, characterized in that: The end of the venous conduit (4) is set as a Y-shaped structure to simulate the inferior vena cava and the left and right femoral veins respectively. The venous conduit (4) and the bottom part of the esophageal ultrasound probe and the conduit (1) are different conduits.

4. The in vitro simulation model of the atrial shunt according to claim 1, characterized in that: The shunt assembly (7) includes a delivery conduit and a shunt, wherein the delivery conduit in the shunt assembly (7) is installed inside via one side of the bottom of the venous conduit (4), and the shunt in the shunt assembly (7) can be connected to its end and the left and right atrial septa via the delivery conduit.

5. The in vitro simulation model of the atrial shunt according to claim 1, characterized in that: The shunt assembly (7) is inserted into the right atrium of the 3D-printed heart model (6) via a venous line (4) and released to a predetermined position at the left and right atrial septum.

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