Three-dimensional mapping method of human chamber inner wall and equipment and system thereof

Abstract

The invention provides a three-dimensional mapping method of a human chamber inner wall and equipment and a system thereof, which is characterized in that a plurality of distinguished fields are generated by virtue of a field generating device; the distinguished fields are detected by at least one preset sensor in a target device to generate a sensor signal, and then sensor signal output is detected to obtain the five-dimensional position and the orientation coordinate data of the point on which the sensor is located on the target device; by means of the five-dimensional position and the orientation coordinate data of the position on which the sensor is located on the target device acquired for a plurality of times after moving the target device in a human chamber, the three-dimensional image model of the human chamber inner wall and the target device are established, and the target device is positioned; and more than one sensor in different positions are preferably preset on the target device for simulating the local / overall stereo image of the target device so that the target device can be more effectively located and moved in the human chamber.

Description

technical field [0001] The invention relates to a three-dimensional mapping method for the inner wall of a human chamber and its equipment and system. Physiological signals to assist clinicians in diagnosis and surgical treatment of arrhythmia diseases. Background technique [0002] Atrial fibrillation is one of the most common arrhythmia diseases in the world, which often leads to serious complications such as stroke and seriously affects the quality of life of patients. With the widespread development and maturity of transcatheter radiofrequency ablation technology in the treatment of paroxysmal supraventricular tachycardia, idiopathic supraventricular tachycardia and atrial flutter and other arrhythmia diseases, more and more clinicians begin to use catheter radiofrequency ablation Turning to the treatment of atrial fibrillation. At present, the medical community has proved that atrial fibrillation can be effectively treated by applying radiofrequency ablation therapy t...

AI Technical Summary

Problems solved by technology

Since the mutual position and angle deviations of the three orthogonal sensors have a great influence on the positioning accuracy of the system, but calibrating and maintaining the relative position and angle accuracy requires complex system structures and algorithms, and at the same time it is necessary to obtain the coordinates of a point in space Three sensors are used, resulting in high cost and bulk

[0007] 2) The catheter structure and method described in the system can only obtain the spatial coordinates of a point on the catheter, so it can only simulate and display the fixed shape of the catheter tip part, which cannot provide the clinician with a long and reliable catheter. curved display

[0009] 1) This type of equipment or system can generally only display a limited number of intracardiac electrical signals, and when performing arrhythmia operations such as atrial fibrillation, in addition to the few intracardiac electrical signals that require a navigation catheter, at least ten additional channels need to be added Circumpulmonary vein signal and multi-channel coronary sinus electrophysiological signal, but this system cannot meet the needs, and must rely on the cooperation of multi-channel electrophysiological multi-channel instruments from other manufacturers, which results in low system integration and complicated connections between devices. Additional communication protocols and hardware connections are required, increasing the risk of additional interference and safety, while taking up more operating room space

At the same time, doctors need to pay attention to multiple systems at the same time, which will increase staffing

Surgical data are stored in different systems, and cannot be integrated and stored, and various data required for synchronous playback cannot be performed after surgery

[0010] 2) This type of equipment or system generally emphasizes that each point needs to obtain its six-dimensional coordinates, and each point needs three sensors to realize the above-mentioned six-dimensional coordinates, resulting in a complex catheter structure and high cost

[0011] 3) When this kind of equipment or system is used for three-dimensional mapping, usually only the fixed shape of the large head of the catheter can be displayed, and the curved shape cannot be displayed, and the necessity of the curved shape of the catheter in the operation has been described above

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