Method for real-time spatial positioning of ablation catheter in heart cavity by using ultrasound

Abstract

The invention discloses a method for real-time spatial positioning of an ablation catheter in a heart cavity by using ultrasound, and relates to the technical field of medical instruments. A fixing seat is included, the right inner wall of the fixing seat is fixedly connected with an electromagnet, and a buffer groove is formed in the right inner wall of the fixing seat and close to the left sideof the electromagnet. According to the method for real-time spatial positioning of the ablation catheter in the heart cavity by using ultrasound, through cooperative use of the electromagnet and a resistor, during use of the device, the electromagnet is energized first, so that a piston block moves leftwards under the mutual repulsive force of the electromagnet and a magnet to squeeze an electrorheological fluid to the left side, a rubber ring expands and is clamped with a clamping groove, when the circuit voltage is larger than the minimum path voltage of the resistor, the electrorheologicalfluid becomes solid at the moment to fix a universal ball, so that fixation of an ultrasound device is effectively guaranteed, when the electrorheological fluid is liquid, the universal ball can be adjusted by universal rotation, and the effects of facilitating the adjustment of the angle of the ultrasound device and improving the detection efficiency are achieved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a method for real-time spatial positioning of an ablation catheter in a cardiac cavity by using ultrasound. Background technique [0002] The three-dimensional platform has become the mainstream of modern electrophysiology and radiofrequency ablation surgery. The three-dimensional mapping systems currently used in clinical practice are all based on magnetic field positioning, electric field positioning, and magnetic field and electric field dual positioning. The three electric / magnetic fields emit three different fields, and the real-time three-dimensional spatial positioning is realized by calculating the relative position changes of the ablation catheter tip in the three fields in real time. Specifically, the field emission device realizes the real-time visualization of the spatial position of the ablation catheter through electric / magnetic field positioning, and then r...

AI Technical Summary

Problems solved by technology

Since the existing technology realizes the real-time visualization of the spatial position of the ablation catheter through electric / magnetic field positioning, and then realizes the three-dimensional modeling of the heart through point-to-point software algorithms, and then obtains the positioning of the ablation catheter in the heart, although this method can be real-time and accurate The location of the ablation catheter in the heart, but the whole process requires many instruments and equipment, and the process is cumbersome

[0003] Moreover, the current device needs multi-angle adjustments when in use, and the current device often encounters the situation that the angle adjustment is not in place when the current device is used, resulting in inaccurate detection angles, making it difficult to accurately detect patients, which is not conducive to medical analysis and develop medical plans

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