A detection device and an interventional therapy instrument

Abstract

The present application discloses a detection device for magnetic positioning and pressure detection of a catheter, comprising a support column (1) arranged at the distal end of the catheter, and a deformation body ( 2), the deformation body (2) is provided with a helical groove (3) extending in a spiral manner, the deformation body (2) is also provided with an axial accommodation space (4), and the axial accommodation space (4 ) is extended from the deformation body (2) to the support column (1), the optical sensor (5) is arranged in the axial accommodation space (4), and the magnetic positioning sensor (6) is arranged in the support column ( 1) Inside. The present application also provides an interventional therapy instrument. The detection device and the interventional therapy instrument provided by the present application have simple assembly, low structural precision requirements, simple pressure test method, and can effectively assist the operator to perform surgical operations.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to a detection device and an interventional treatment device. Background technique [0002] Radiofrequency ablation is to send a catheter with electrodes into a specific part of the heart cavity through blood vessels, and release radiofrequency current to cause coagulation necrosis of local endocardium and subendocardium, so as to block the abnormal conduction bundle and origin point of tachyarrhythmia Interventional technology. The traditional mapping method for arrhythmia treated by radiofrequency ablation is to directly record multi-conductor intracardiac electrograms, and locate them according to the shape, amplitude and time relationship of local potentials. For simple arrhythmias, this method has the advantages of simplicity, practicality and speed, but it is often difficult for complex arrhythmias. Therefore, in recent years, a new mapping and positioning ...

AI Technical Summary

Problems solved by technology

One of the major problems of radiofrequency ablation is that it is difficult to control the degree of adhesion between the catheter and the endocardium. Insufficient ablation may easily lead to impermeable damage, edema, prolonged operation time, and high recurrence rate, while excessive ablation will lead to the transition of the heart chamber wall. Injury, leading to a greatly increased incidence of cardiac tamponade, esophageal injury, Pop, etc.

At present, it is difficult to determine the contact force between the tip of the ablation catheter and the tissue. It can only be judged by the doctor's hand feel and experience, catheter positioning information, X-ray images, etc., and the error is relatively large.

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