An interventional ablation catheter with ultrasonic positioning function

An ablation catheter and ultrasonic positioning technology, applied in the field of medical devices, can solve problems such as difficult positioning, and achieve the effects of improving the success rate, high positioning accuracy, and convenient operation

Inactive Publication Date: 2018-01-02
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an interventional ablation catheter with ultrasonic positioning function, which mainly solves the problem of difficult positioning when the ablation catheter enters the inner cavity of the heart

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  • An interventional ablation catheter with ultrasonic positioning function
  • An interventional ablation catheter with ultrasonic positioning function
  • An interventional ablation catheter with ultrasonic positioning function

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Embodiment Construction

[0016] Attached below figure 1 , 2 The present invention is described in detail with specific embodiments.

[0017] An interventional ablation catheter with ultrasonic positioning function, comprising an ablation catheter 4 , a connector 5 , and an ultrasonic instrument 6 . An ablation electrode 2 and an ultrasonic transducer 3 are arranged on the front section of the ablation catheter 4, and four piezoelectric wafers 11 are arranged on the ultrasonic transducer 3, and the four piezoelectric wafers form a cubic structure. A linear array of array elements 12 is arranged on the electric chip 11 . Taking the axial direction of the ablation catheter 4 as the x-axis, the y-axis and the z-axis are established with the vertical piezoelectric wafer.

[0018] The invention discloses an interventional ablation catheter with an ultrasonic positioning function. The working principle includes the following steps.

[0019] In step (1), before the operation, the heart 1 of the patient is...

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Abstract

The invention discloses an intervention ablation catheter with ultrasonic positioning functions, which comprises an ablation catheter, a connector and an ultrasonic instrument, wherein an ablation electrode and an ultrasonic transducer are distributed on the front segment of the ablation catheter, and the ultrasonic transducer is distributed with piezoelectric crystal plates which are arranged in a linear array. A specific location method of the intervention ablation catheter with the ultrasonic positioning functions is that when the ablation catheter is intervened into a cardiac lumen, three-dimensional contour curves of the cardiac lumen are obtained by scanning through the ultrasonic transducer, and then corresponding data of the three-dimensional contour curves is transmitted into an external computer system, and is matched with curve characters of heart three-dimensional vector models which are built before an operation, thereby determining the position of the ablation catheter in the heart. The intervention ablation catheter with the ultrasonic positioning functions is simple in structure and small in volume, can safely and really determine the position of the ablation catheter in the cardiac lumen, further can determine bending rotating angels of the ablation catheter, and is convenient for operation of doctors, thereby improving success rate of surgery.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a human heart interventional ablation catheter using the principle of ultrasonic positioning, including the design and manufacturing process of an ultrasonic transducer on the catheter. Background technique [0002] Catheter interventional ablation is one of the methods for the treatment of arrhythmia. This operation punctures the electrode catheter into the blood vessel, first checks to determine the abnormal current conduction that causes tachycardia, and then releases high-frequency current locally, within a small range. A very high temperature is generated to evaporate the water in the local tissue, dry and necrosis, so as to achieve the purpose of treatment. In order to complete the operation, the doctor must be able to accurately observe the exact location of the catheter intervention. At present, the positioning of the ablation catheter in the blood vessel is mostl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/12A61B8/08
Inventor 吴嘉宜年俊杰李向飞苏智剑
Owner ZHENGZHOU UNIV
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