Implantable medical equipment for detecting T-wave over-perception by utilizing pressure sensor

Abstract

The invention relates to implantable medical equipment for detecting T-wave over-perception by utilizing a pressure sensor. The implantable medical equipment comprises an electrocardiosignal perception wire and a pressure sensor integrated on the wire; the wire enters a ventricle through a coronary vein to maintain the pressure sensor within the ventricle; the implantable medical equipment furthercomprises a functional circuit; the functional circuit is electrically connected with the wire so as to receive the electrocardiosignal and an intraventricular pressure signal sensed by the pressuresensor; the functional circuit comprises a control module; the control module is configured to judge whether T-wave over-perception occurs or not according to the intraventricular pressure signal; thepressure sensor is used for detecting T-wave over-perception; and, compared with electric signal detection, the accuracy is relatively high.

Description

technical field [0001] The invention belongs to the field of cardiac implantable medical equipment, and in particular relates to improving heart rate perception by using the pressure in the patient's heart. Background technique [0002] For cardiac implantable medical devices, T-wave over-perception causes false perception of the patient's heart rate. For a variety of reasons, implantable cardiac medical devices are set with a high perception sensitivity, so the device may recognize the T wave of the patient's heart as an R wave due to the high perception sensitivity, resulting in device perception The heart rate is twice the actual heart rate of the patient. Taking the implantable cardiac monitoring device ICM as an example, the perception algorithm and diagnosis algorithm of the ICM are based on the heart rate. If the T wave exceeds the perception, it may cause ICM misdiagnosis and cause its wrong early warning, especially the possible Can lead to misdiagnosis of atrial ...

AI Technical Summary

Problems solved by technology

Reducing the perception sensitivity or increasing the identification number of VT and VF is currently the commonly used method to deal with T wave over-sensing, but it will affect the ICD's judgment of VT and VF, and delay treatment

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