Coronary artery high-speed rotary grinding simulation device based on electric drive

Abstract

The utility model discloses a coronary artery high-speed rotary grinding simulation device based on electric driving. The device comprises an intelligent pressurizing infusion device, an electric driving power device, a high-speed brushless motor, a grinding head control device, a rotary grinding guide wire, an artery path model, a calcified artery model, a camera system and a computer, the electric drive power device is connected with the high-speed brushless motor, provides power and enables the high-speed brushless motor to rotate at a preset speed. The grinding head control device is connected with the intelligent pressurizing liquid conveying device through a liquid conveying pipe and controls the grinding head to advance and retreat, and the grinding head is connected with the high-speed brushless motor. The rotary grinding guide wire penetrates through the calcified artery model along the artery path model to reach the far end; the camera system is connected with the computer, shoots the state of the calcified artery model when the grinding head rotates, and transmits the state to the computer for display in real time.

Description

Technical Field

[0001] This utility model belongs to the field of medical device experimental equipment technology, and in particular relates to an electric-driven coronary artery high-speed rotational atherectomy simulation device. Background Technology

[0002] Coronary artery disease (CAD) is one of the most deadly diseases, primarily caused by coronary atherosclerosis, which leads to narrowing of the blood vessels and myocardial ischemia. Severe calcification increases the complexity of surgery, increasing the risk of stent failure and expansion, resulting in poor patient prognosis. High-speed rotational atherectomy uses a diamond-coated burr head that, driven by a actuator, rotates at high speed to abrade and refine calcified plaques, improving device passability and stent expansion. However, the high-speed rotation of the burr head within the blood vessel increases the risk of vascular dissection, perforation, and rupture, making it a highly challenging procedure, thus limiting the number of hospitals capable of performing it. Young surgeons typically require mentorship from experienced senior surgeons to learn this technique, resulting in limited learning opportunities, high costs, and significant risks. Therefore, this invention develops an electrically driven high-speed rotational atherectomy simulation device to help surgeons understand the entire procedure and its working principles, making it easier to learn and master. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electrically driven high-speed rotational atherectomy simulation device for coronary arteries.

[0004] The purpose of this utility model is achieved through the following technical solution: a high-speed rotary atherectomy simulation device based on electric drive, characterized in that the device includes an intelligent pressurized infusion device, an electric drive power device, a high-speed brushless motor, a grinding head control device, a rotary atherectomy guidewire, an arterial path model, a calcified artery model, a camera system, and a computer;

[0005] The electric drive power unit is connected to the high-speed brushless motor, providing power and causing the high-speed brushless motor to rotate at a preset speed.

[0006] The grinding head control device is connected to the intelligent pressurized infusion device through the infusion tube, and controls the grinding head to move forward and backward. The grinding head is connected to a high-speed brushless motor.

[0007] The rotational atherectomy guidewire passes through the calcified artery model along the arterial path model to reach the distal end;

[0008] The camera system is connected to a computer to capture images of the calcified artery model as the grinding head rotates, and transmits the images to the computer for display in real time.

[0009] Furthermore, the intelligent pressurized infusion device is filled with physiological saline.

[0010] Furthermore, the device also includes an STM32 microcontroller system, which is connected to the electric drive power unit for power supply and sets the preset speed of the high-speed brushless motor.

[0011] Furthermore, the STM32 microcontroller system is connected to an audible and visual alarm system for monitoring the rotational resistance of the grinding head.

[0012] Furthermore, the device also includes a spin milling guide wire brake device for clamping the spin milling guide wire and limiting its displacement.

[0013] The beneficial effects of this invention are as follows: replacing the traditional nitrogen compression drive for high-speed rotation of the grinding head with an electric drive method facilitates the use of this device for rotary grinding teaching; operating the rotary grinding guide wire brake device helps trainees understand the working principle and importance of the guide wire brake device; operating the grinding head control device helps trainees experience the force and speed of operating the grinding head forward and backward, improve their grinding head operation skills, and reduce the incidence of complications such as coronary artery perforation and grinding head impaction. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the electric-driven high-speed rotational atherectomy simulation device for coronary arteries according to this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the single embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] like Figure 1 and Figure 2 As shown, this utility model provides a high-speed rotary atherectomy simulation device based on electric drive. The device includes an intelligent pressurized infusion device, an electric drive power device, a high-speed brushless motor, a atherectomy head control device, an STM32 microcontroller system, an audible and visual alarm system, a rotary atherectomy guidewire braking device, a rotary atherectomy guidewire, an arterial path model, a calcified artery model, a camera system, and a computer.

[0018] The STM32 microcontroller system is connected to the high-speed brushless motor through an electric drive power unit to provide power to the motor. The maximum control speed is 200,000 rpm, with constant power output, intelligent identification of motor parameters, and speed closed loop, so that the high-speed brushless motor rotates at the preset speed.

[0019] The grinding head control device is connected to the intelligent pressurized infusion device via an infusion tube, and can control the grinding head to move forward and backward. The grinding head is connected to a high-speed brushless motor at the grinding head interface. The intelligent pressurized infusion device contains physiological saline.

[0020] The atherectomy guidewire passes through the calcified artery model along the arterial path model to reach the distal end. The calcified artery model is modular and replaceable. The atherectomy guidewire braking device is used to clamp the atherectomy guidewire and prevent it from moving.

[0021] The grinding head reaches the proximal end of the calcified artery model along the rotary abrasion guide wire. The grinding head is started to rotate at high speed by the start button on the grinding head control device, and the push button on the grinding head controller pushes it back and forth to grind the calcified artery model.

[0022] The camera system is connected to a computer and uses the camera to capture images of the grinding head's position, allowing observation of the grinding head's state within the calcified artery model, and transmitting the data in real time to the computer for display.

[0023] The sound and light alarm system is connected to the STM32 microcontroller system and is used to promptly remind the experimenters when the grinding head encounters excessive resistance.

[0024] The specific application process of this utility model is as follows: Physiological saline is placed in an intelligent pressurized infusion device, whose infusion tube is connected to the grinding head control device. The physiological saline flushes the grinding head to prevent overheating. An electric drive power unit controlled by an STM32 microcontroller system is connected to the grinding head control device via a high-speed brushless motor. The motor controls the rotation of the grinding head, and the STM32 microcontroller system also controls the audible and visual alarm system. The rotational atherectomy guidewire passes through the calcified artery model along the arterial path model to the distal end. Then, a rotational atherectomy guidewire brake device clamps the guidewire to prevent movement. When the grinding head reaches the calcified artery model, the electric drive power unit is activated, allowing the grinding head to reach the preset rotation speed. Simultaneously, the camera system is activated. The experimenter can observe the state of the grinding head on the calcified artery model in real time through the camera system, and simultaneously control the grinding head control device to move the grinding head forward and backward, simulating the rotational atherectomy system grinding the calcified artery model and experiencing the entire operation process. When the grinding head encounters too much resistance and the actual rotation speed is below 90,000 rpm, the system will issue an audible and visual alarm to remind the experimenter to quickly retract the grinding head to prevent it from getting stuck.

[0025] The above embodiments are used to explain and illustrate the present utility model, and are not intended to limit the present utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims shall fall within the protection scope of the present utility model.

Claims

1. An electrical drive based high speed rotational atherectomy simulation device, comprising: The device comprises a smart pressurized infusion device, an electric drive power device, a high-speed brushless motor, a grinding head control device, a rotational atherectomy guide wire, an arterial path model, a calcified arterial model, a camera system and a computer; The electric drive power device is connected with the high-speed brushless motor, provides power and makes the high-speed brushless motor rotate at a preset speed; The grinding head control device is connected with the smart pressurized infusion device through an infusion tube, controls the forward and backward movement of the grinding head, and the grinding head is connected with the high-speed brushless motor; The rotational atherectomy guide wire passes through the calcified arterial model along the arterial path model to reach the distal end; The camera system is connected with the computer, takes pictures of the state of the calcified arterial model when the grinding head rotates, and transmits the pictures to the computer in real time for display.

2. The high-speed rotational atherectomy simulation device based on electrical drive of a coronary artery according to claim 1, characterized in that, The smart pressurized infusion device contains physiological saline.

3. The high-speed rotational atherectomy simulation device based on electrical drive of a coronary artery according to claim 1, characterized in that, The device further comprises an Stm32 single-chip microcomputer system connected with the electric drive power device for power supply and setting the preset rotating speed of the high-speed brushless motor.

4. The high-speed rotational atherectomy simulation device based on electrical drive of a coronary artery according to claim 3, characterized in that, An audible and visual alarm system for monitoring the rotating resistance of the grinding head is connected on the Stm32 single-chip microcomputer system.

5. The high-speed rotational atherectomy simulation device of claim 1, wherein the rotational atherectomy simulation device further comprises a motor configured to rotate the drive shaft at a rotational speed of 180,000 rpm. The device further comprises a rotational atherectomy guide wire brake device for clamping the rotational atherectomy guide wire to limit displacement.

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