Method for simulating bending shape of catheter and magnetic induction catheter

Abstract

The invention relates to a method for simulating canula bending state. A canula is provided with at least two sensing elements. The method comprises the steps that: the sensing elements cut a magnetic line of force to generate induced current; the space information of the sensing elements is picked up from induced current information; according to the space information, the bending state of the canula is calculated by combining with the characteristic information of the canula. At the same time, the invention also provides a canula which comprises a canula body and also comprises at least two magnetic sensors, a signal pick-up device, a simulating treatment device, etc. The method and the canula ensure that during the process of an operation, operators can see the bending state of the canula in heat directly, are convenient for operating the operation and improve the safety and the controllability of the operation.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a method for simulating the bending shape of a catheter and a magnetic induction catheter. Background technique [0002] Radiofrequency ablation lead catheters are mainly used for electrophysiological mapping of arrhythmias, temporary pacing, and radiofrequency ablation of the heart. refer to figure 1 , is a schematic diagram of an existing radiofrequency ablation electrode catheter. The electrode catheter 10 includes a catheter control handle 11 , a catheter body 12 , a head electrode 13 , a connector 14 , and an extension cable 15 . [0003] In traditional catheter radiofrequency ablation therapy, the electrode catheter 10 is used to insert the head electrode 13 capable of emitting radiofrequency energy into the human body through veins or arteries. In the treatment of complex arrhythmias such as atrial fibrillation and atrial flutter, it is also necessary to connect the ablati...

AI Technical Summary

Problems solved by technology

However, the current three-dimensional anatomical images drawn using magnetic induction technology have relatively large limitations, and can only display the position of the head electrode 13, but cannot display the curvature shape of the catheter body 12 of the electrode catheter 10

During the operation, the operator cannot directly see the bending shape of the electrode catheter 10 in the heart, which brings great inconvenience to the operation, and the safety and controllability of the operation are also significantly reduced.

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