Expandable esophageal deflection device with film for temperature measurement

Abstract

The invention relates to an expandable esophageal deflection device with a film for temperature measurement. The device comprises an inner cavity hose, a coil pipe, an outer casing bag and at least three film temperature electrodes, wherein the front end of the inner cavity hose is provided with water outlet holes, and the tail part of the inner cavity hose is connected with a water inlet pipe; the coil pipe sleeves the inner cavity hose, and at least two operating steel wires are arranged on the coil pipe; the main body part of the outer casing bag is provided with two layers of shells, and the two layers of shells form a bag cavity with an annular cross section; the film temperature electrodes are circumferentially attached to the surface of the front section of the outer casing bag at intervals. According to the expandable esophageal deflection device with the film for temperature measurement, the temperature around the contact points between the left atrium and the esophagus can bemonitored in real time by integrating inner and outer normal saline channels formed by the film temperature electrodes, the inner cavity hose and the outer casing bag and arranging the coil pipe capable of achieving a deflection function, and therefore the esophagus can be cooled and deflected flexibly and conveniently; the operation is simple and convenient, and related complications of ablationsurgery and the operation difficulty can be effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an expandable esophageal deflection device with a thin film for temperature measurement. Background technique [0002] In recent years, radiofrequency ablation of atrial fibrillation has been widely used clinically. With the continuous development and improvement of technology, the postoperative recurrence rate of paroxysmal atrial fibrillation has been very low. The current treatment focus has shifted to refractory persistent atrial fibrillation, because this The burden of atrial fibrillation in such patients is heavy, the left atrium is often significantly enlarged and thinned, and is close to the esophagus in anatomical structure, which often requires high-power and long-term radiofrequency ablation to remove the atrial fibrillation focus, and this operation may cause serious complications. Risk of esophago-atrial fistula (a disease with a mortality rate of...

AI Technical Summary

Problems solved by technology

[0004] In view of the technical problems that the existing esophageal deflection device needs to repeatedly adjust the deflection position and need to insert a temperature measuring probe during actual use, and the operation is relatively difficult. Esophageal deflection device

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