3D printing simulator capable of being used for atrial septum puncture operation

Abstract

The invention discloses a 3D printing simulator capable of being used for atrial septum puncture operation, and relates to the technical field of medical instruments.The 3D printing simulator comprises a pleuroperitoneal cavity simulator, a transesophageal ultrasound simulation approach is arranged above the pleuroperitoneal cavity simulator in a penetrating mode, and an inferior vena cava simulation approach is arranged below the pleuroperitoneal cavity simulator in a penetrating mode; the pleuroperitoneal cavity simulator is a relatively closed environment, human body internal environment simulation liquid is contained in the pleuroperitoneal cavity simulator, and internal physiological parameters of the pleuroperitoneal cavity simulator simulate the human body internal environment. According to the 3D printing simulator capable of being used for the atrial septum puncture operation, due to the design of a detachable individualized 3D printing atrial septum model, the simulator can be customized according to the specific conditions of different patients, the atrial septum forms and structures of the different patients possibly have differences, and the atrial septum model conforming to the specific patient characteristics is manufactured through the 3D printing technology; an operator can carry out more targeted simulation training aiming at actual cases, and the success rate and safety of an operation are improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a 3D-printed simulator that can be used for atrial septal puncture procedures. Background Technology

[0002] Heart failure is a chronic and refractory heart disease. The treatment of end-stage refractory heart failure has always been a key challenge in cardiovascular medicine. In the past, it was mainly treated conservatively with internal medicine. In recent years, the rise of new interventional methods such as atrial septal puncture and shunt placement has brought new hope to the treatment of heart failure. Among them, atrial septal puncture and shunt placement have the advantages of being simpler, less invasive, and less expensive. They also have unique advantages in relieving the symptoms of heart failure patients and taking into account the patients' socioeconomic status.

[0003] The prior art (Chinese patent publication number CN119479454A, publication date 2025-02-18) discloses a training model and method for atrial septal puncture, belonging to the field of medical device technology. The puncture needle is connected to a puncture sheath and a lead wire. A binocular camera is connected to a control element and a display screen. The 3D heart model includes a left atrium, right atrium, ventricle, magnetic iron block, and electromagnetic coil. The port of the 3D heart model consists of a ferromagnetic body and three red marker points. A binocular camera and a white light source are placed on top of the 3D heart model. A flared opening and an electromagnetic conduit are placed at the ideal puncture point of the 3D heart model to simulate the force during the puncture process. The binocular camera, puncture point interface, controller, and screen are connected. This invention provides medical personnel with a safe and repeatable practical platform by simulating the real human anatomical structure and physiological environment.

[0004] All existing surgical techniques involve the crucial step of atrial septal puncture. Like all interventional procedures, this is performed under non-direct vision using angiography or ultrasound. Intraoperative determination of the puncture point location in the patient's atrial septum is of paramount importance. Traditional imaging techniques can only display the procedure in a two-dimensional plane and cannot be used for pre-operative rehearsal. Currently, interventional procedures advocate for multimodal individualized imaging assessments to improve the success rate of the procedure and reduce complications.

[0005] Therefore, we propose a 3D printing simulator for atrial septal puncture to address the aforementioned problems. Summary of the Invention

[0006] The purpose of this invention is to provide a 3D-printed simulator that can be used for atrial septal puncture, in order to solve the problem mentioned in the background art that the procedure is performed under non-direct vision using angiography or ultrasound, and that the determination of the puncture point location in the patient's atrial septum is crucial during the operation. Traditional imaging methods can only display the procedure in a two-dimensional plane and cannot be used for surgical rehearsal.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a 3D-printed simulator for interatrial septal puncture, comprising a thoracic and abdominal cavity simulator, wherein a transesophageal ultrasound simulated approach is provided above the thoracic and abdominal cavity simulator, and an inferior vena cava simulated approach is provided below the thoracic and abdominal cavity simulator.

[0008] Furthermore, the thoracic and abdominal cavity simulator is a relatively closed environment, and the interior of the thoracic and abdominal cavity simulator contains a simulated internal environment liquid, which is 37°C physiological saline or SBF simulated body fluid, and the physiological parameters inside the thoracic and abdominal cavity simulator simulate the internal environment of the human body.

[0009] Furthermore, the internal structure of the thoracic and abdominal cavity simulator is fixedly connected with two sets of placement plates, with the upper placement plate having an irregular shape and the lower placement plate having a rectangular structure.

[0010] Furthermore, the transesophageal ultrasound simulation approach is fixedly connected to the upper placement plate, and the inferior vena cava simulation approach is fixedly connected to the lower placement plate.

[0011] Furthermore, both the transesophageal ultrasound simulation approach and the inferior vena cava simulation approach are hollow structures. The transesophageal ultrasound simulation approach is used to simulate the human esophagus and can accommodate a transesophageal ultrasound probe. The inferior vena cava simulation approach simulates the venous access channel of the human lower limb and is used for the passage of interventional devices such as interatrial septal puncture needle sheaths.

[0012] Furthermore, space is reserved between the transesophageal ultrasound simulation approach and the inferior vena cava simulation approach for placing the atrial septum model, and the septum model is a detachable, individualized 3D-printed atrial septum model.

[0013] Furthermore, an imaging camera is fixedly connected to the placement plate, and three sets of imaging cameras are provided. The imaging cameras are connected to an external display and an ultrasonic imaging device.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. It is equipped with a thoracic and abdominal cavity simulator. The simulated human body environment inside the thoracic and abdominal cavity simulator provides a highly realistic scenario for the atrial septal puncture operation. When simulating the atrial septal puncture operation, a transesophageal ultrasound probe is inserted through the transesophageal ultrasound simulation approach to observe the atrial septal model and its surroundings in real time. By observing the inside of the human body through ultrasound equipment, the operator can accurately determine the location of the puncture point based on the ultrasound image.

[0016] Meanwhile, the inferior vena cava simulation approach allows interventional instruments such as interatrial septal puncture needle sheaths to pass smoothly, simulating the process of instruments entering the body from the lower limb veins and reaching the interatrial septum in real surgery. The simulated fluid and simulated physiological parameters in the thoracic and abdominal cavity simulator allow the operator to feel resistance and environmental feedback that are closer to those of the real human body, improving the realism and accuracy of the operation.

[0017] 2. The three-camera system connects to an external monitor and ultrasound imaging equipment, enabling it to capture images and data from different angles during the operation and transmit them to the external device. This not only allows the operator to observe the details of the operation but also provides other personnel with opportunities for teaching, observation, or remote consultation. It enables multimodal imaging visualization and assessment, preoperative imaging evaluation, and surgical simulation, assisting the surgeon in developing a surgical plan.

[0018] 3. The design of the detachable and individualized 3D-printed atrial septum model allows the simulator to be customized according to the specific conditions of different patients. The atrial septum shape and structure may vary among different patients. By using 3D printing technology to create atrial septum model that conforms to the characteristics of specific patients, operators can conduct more targeted simulation training based on actual cases, thereby improving the success rate and safety of surgery. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional cross-sectional view of the present invention;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the placement plate of the present invention;

[0022] Figure 4 This is a schematic diagram of the novel three-dimensional structure of the transesophageal ultrasound simulation approach of the present invention;

[0023] Figure 5 This is a schematic diagram of the novel structure of the transesophageal ultrasound simulation approach of the present invention, in three-dimensional cross-section.

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the imaging camera of the present invention.

[0025] In the image: 1. Transesophageal ultrasound simulation approach; 2. Thoracic and abdominal cavity simulator; 3. Imaging camera; 4. Inferior vena cava simulation approach; 5. Placement plate. Detailed Implementation

[0026] 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.

[0027] Example 1: As Figures 1-3 The present invention provides the following technical solution: a 3D-printed simulator for atrial septal puncture, wherein a transesophageal ultrasound simulated access 1 is provided above the thoracic and abdominal simulator 2, and an inferior vena cava simulated access 4 is provided below the thoracic and abdominal simulator 2. The thoracic and abdominal simulator 2 is a relatively closed environment, and the interior of the thoracic and abdominal simulator 2 is filled with a simulated internal environment fluid, which is 37°C physiological saline or SBF simulated body fluid. The internal physiological parameters of the thoracic and abdominal simulator 2 simulate the internal environment of the human body. Two sets of placement plates 5 are fixedly connected inside the thoracic and abdominal simulator 2, and the upper placement plate 5 is irregularly shaped, while the lower placement plate 5 is rectangular.

[0028] The system is equipped with a thoracic and abdominal cavity simulator 2. The simulated human body environment inside the thoracic and abdominal cavity simulator 2 provides a highly realistic scenario for the atrial septal puncture operation. When the atrial septal puncture operation is simulated, a transesophageal ultrasound probe is inserted through the transesophageal ultrasound simulation approach 1 to observe the atrial septal model and its surroundings in real time. By observing the inside of the human body through ultrasound equipment, the operator can accurately determine the location of the puncture point based on the ultrasound image.

[0029] Example 2: Figure 2 , Figure 4 and Figure 5 The present invention provides the following technical solution: a 3D-printed simulator for atrial septal puncture, wherein a transesophageal ultrasound simulation approach 1 is fixedly connected to an upper placement plate 5, and an inferior vena cava simulation approach 4 is fixedly connected to a lower placement plate 5. Both the transesophageal ultrasound simulation approach 1 and the inferior vena cava simulation approach 4 are hollow structures. The transesophageal ultrasound simulation approach 1 is used to simulate the human esophagus and can accommodate a transesophageal ultrasound probe. The inferior vena cava simulation approach 4 simulates the lower limb vein access channel and is used for the passage of interventional instruments such as atrial septal puncture needle sheaths. Space is reserved between the transesophageal ultrasound simulation approach 1 and the inferior vena cava simulation approach 4 for the placement of the atrial septal model, and the septal model is a detachable, individualized 3D-printed atrial septal model.

[0030] The inferior vena cava simulated approach 4 allows interventional instruments such as atrial septal puncture needle sheaths to pass smoothly, simulating the process of instruments entering the body from the lower limb veins and reaching the atrial septum in real surgery. The simulated fluid and physiological parameters in the thoracic and abdominal cavity simulator 2 allow the operator to feel resistance and environmental feedback more closely to the real human body, improving the realism and accuracy of the operation. The design of the detachable and individualized 3D-printed atrial septal model allows the simulator to be customized according to the specific conditions of different patients. Different patients may have different atrial septal shapes and structures. By using 3D printing technology to create atrial septal model that conforms to the characteristics of specific patients, the operator can conduct more targeted simulation training for actual cases, improving the success rate and safety of the operation.

[0031] Example 3: Figure 4 , Figure 5 and Figure 6 The present invention provides the following technical solution: a 3D printing simulator that can be used for interventricular septal puncture operation, wherein an imaging camera 3 is fixedly connected to the placement plate 5, and the imaging camera 3 is provided in three sets, and the imaging camera 3 is connected to an external display and an ultrasound imaging device.

[0032] The three-group imaging camera 3 connects to an external display and ultrasound imaging equipment, enabling it to capture images and data during the operation from different angles and transmit them to the external device. This not only allows the operator to observe the details of the operation but also enables other personnel to conduct teaching and observation or remote consultation, perform multimodal visual imaging assessments, complete preoperative imaging assessments and surgical simulations, and assist the surgeon in formulating surgical plans.

[0033] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] 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. A 3D-printed simulator for atrial septal puncture, comprising a thoracic and abdominal cavity simulator (2), characterized in that: The upper part of the thoracic and abdominal cavity simulator (2) is provided with a transesophageal ultrasound simulation approach (1), and the lower part of the thoracic and abdominal cavity simulator (2) is provided with an inferior vena cava simulation approach (4). The thoracic and abdominal cavity simulator (2) is a relatively closed environment, and the interior of the thoracic and abdominal cavity simulator (2) contains a simulated liquid of the human body environment. The simulated liquid is 37°C physiological saline or SBF simulated body fluid. The physiological parameters inside the thoracic and abdominal cavity simulator (2) simulate the human body environment. The internal structure of the thoracic and abdominal cavity simulator (2) is fixedly connected to two sets of placement plates (5), with the upper placement plate (5) being irregularly shaped and the lower placement plate (5) being rectangular.

2. A 3D printing simulator for atrial septal puncture operation according to claim 1, characterized in that: The transesophageal ultrasound simulation approach (1) is fixedly connected to the upper placement plate (5), and the inferior vena cava simulation approach (4) is fixedly connected to the lower placement plate (5).

3. A 3D printing simulator for atrial septal puncture as described in claim 1, characterized in that: Both the transesophageal ultrasound simulation approach (1) and the inferior vena cava simulation approach (4) are hollow structures. The transesophageal ultrasound simulation approach (1) is used to simulate the human esophagus and can be used to insert a transesophageal ultrasound probe. The inferior vena cava simulation approach (4) simulates the lower limb vein access channel and is used for the passage of interventional devices such as interatrial septal puncture needle sheaths.

4. A 3D printing simulator for atrial septal puncture as described in claim 1, characterized in that: There is space reserved between the transesophageal ultrasound simulation approach (1) and the inferior vena cava simulation approach (4) for the placement of the atrial septum model, and the septum model is a detachable individualized 3D printed atrial septum model.

5. A 3D printing simulator for atrial septal puncture as described in claim 1, characterized in that: An imaging camera (3) is fixedly connected to the placement plate (5), and there are three sets of imaging cameras (3). The imaging cameras (3) are connected to an external display and an ultrasonic imaging device.

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