Virtual in-vivo navigation system of vascular intervention

Abstract

The invention provides a simulated training system of a vascular intervention with force feedback and VR display functions. The system comprises a model of main blood vessels under the neck of a humanbody, a guide wire surface recognition unit, a support module, a guide wire track fixing pipe, a force feedback module, a power source module, a control unit, a computer, a stepping motor driver andVR equipment. By using the system, the hand feeling of a doctor in true surgery can be simulated, the immersion of a training process is enhanced by using the VR equipment, various parameters in the surgery can be intuitively displayed, and the surgical proficiency and surgical skill of the doctor can be improved.

Description

technical field [0001] The present invention relates to a virtual navigation system in the body, and more specifically, to a vascular interventional surgery simulation training system with force feedback and VR display functions. Background technique [0002] Minimally invasive treatment is a major technique that is considerate to patients, does not require surgery, and is widely used in clinical practice. Among them, vascular interventional surgery is an important method for diagnosing and treating diseased parts by introducing precision instruments such as special guide wires into the human body under the guidance of medical imaging equipment. However, this method strictly requires the surgeon's surgical skills and proficiency. Physicians with immature surgical techniques cannot correctly predict the state and position of the instrument in the human body, and the repeated use of radioactive rays during the operation will cause serious damage to the doctor's body. Influenc...

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Problems solved by technology

However, this method strictly requires the surgeon's surgical skills and proficiency. Physicians with immature surgical techniques cannot correctly predict the state and position of the instrument in the human body, and the repeated use of radioactive rays during the operation will cause serious damage to the doctor's body. Influenced by the current medical environment, inexperienced physicians cannot get enough surgical training, and it is imminent to establish a surgical training system that simulates in-vivo navigation

[0003] In the existing technology, although the method of using the mechanical arm to simulate the guide wire can obtain the corresponding force feedback in real time, this method cannot really exercise the doctor's hand feeling; the use of gears, positioning balls and other mechanical methods has problems such as serious wear and inaccurate measurement ; Although the method of using the laser mouse displacement sensor can obtain the movement data of the guide wire, but because the built-in algorithm of the sensor does not fit well with the application field, it is seriously affected by the surface material of the guide wire; the existing cerebrovascular simulation device also lacks the ability to simulate the entire The function of the surgical process, that is, the lack of an integrated training system that can make the trainer truly feel the intervention length of the guide wire below the neck and above the neck, and its intervention length can be changed in real time

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