Arterial intervention implant implanting system capable of fusing real-time ultrasonic information based on magnetic navigation

Abstract

The invention discloses an arterial intervention implant implanting system capable of fusing real-time ultrasonic information based on magnetic navigation. The system comprises a preoperative image introducing module, a preoperative image three-dimensional reconstructing module, a preoperative registering module, a navigator tracking module, a heart ultrasonic image fusing module, an interventioninstrument processing module and a localizing module. A magnetic field generated by the system is a cuboid of which the side length is 50 centimeters, information fed back by eight electromagnetic sensors can be received simultaneously, preoperative CT (Computerized Tomography) image information of a patient is utilized comprehensively, three-dimensional anatomical structure reconstruction is performed by using a computer, a real patient space is matched with a patient image space by performing preoperative registering, a virtual realistic environment is formed by fusing a real-time ultrasonic image, and a surgical instrument is tracked in real time by using an electromagnetic navigator, so that accurate three-dimensional positioning and localizing of a cardiovascular intervention implantand the surgical instrument are realized, and an arterial intervention implant can be implanted into a specific target position under the action of accuracy navigation.

Description

technical field [0001] The present invention relates to a device in the technical field of medical devices, in particular to a system for implanting intravascular interventions based on magnetic navigation and fusion of real-time ultrasonic information. Background technique [0002] Intervention therapy is one of the important treatment methods for cardiovascular diseases. The indications have been developed from simple diagnosis and angioplasty to the implantation of artificial valves. Because of its small surgical trauma and fewer complications, it is more and more accepted by people. For interventional therapy, the precise positioning of the implant is the key to the operation. The existing technology mostly relies on the help of X-rays. However, prolonged exposure to X-rays will cause harm to both the patient and the operator, and two-dimensional images cannot provide accurate locating. [0003] In view of the above problems, this experiment design uses computer to rec...

AI Technical Summary

Problems solved by technology

The disadvantage of this system is that the optical navigation is easily affected by the site, and the obstruction will cause the navigation to not be completed smoothly, and this technology is not suitable for interventional surgery

The application of this registration component mainly has the following disadvantages: 1. The component needs to be placed on the scanned person before the CT scan, and the cost of the registration component is relatively high, resulting in an increase in the cost of the entire system; 2. Since the end of the sensor is connected by wires, it is necessary to Place the sensors on the body of the person to be scanned in turn, resulting in prolonged preparation time before CT scanning; 3. It is mentioned in this technology that due to the process, the registration components have their own errors, and special adjustments and measurements are required each time they are used, except Increased measurement error also leads to a further increase in working time

The disadvantage of this experiment is that the requirements for equipment are too high, and it is too complicated and inconvenient for clinical development.

[0009] At present, there are two main deficiencies in traditional interventional surgery: 1. The entire interventional surgery process is carried out under X-ray radiation, and the body of the patient and the operator may be damaged by radiation, especially for the operator, who is in this working environment all the year round. The damage is more immeasurable

2. In the process of interventional surgery, a large amount of contrast medium is used, which may cause acute renal damage. Some literature shows that the total incidence of contrast medium-induced acute renal damage is as high as 2%-6%, second only to renal insufficiency And nephrotoxic drugs, ranking third in acute kidney injury in the hospital, especially for those with renal insufficiency, more caution should be used with contrast media

[0010] Previously, there were some examples of navigation instruments guiding operations. Most of them used optical navigation. Optical navigation is easily affected by the venue.

However, after referring to some literatures related to magnetic navigation, it is found that either it lacks intraoperative real-time image assistance support or the suitable operation is too simple to complete more complex interventional operations.

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