Multisensory composite right ventricle electrode and integrated self-adaptation adjusting method for cardiac pacing frequency

Abstract

The invention provides an accurate, rapid and long-term stable integrated self-adaptation adjusting method for the cardiac pacing frequency used for a multisensory composite right ventricle electrode.The electrode comprises a positioning anchor, a silicone conduit, a sensor cabin and a connecting lead. According to the method provided by the invention, the physiological information including theblood photoelectricity volume wave, oxyhemoglobin saturation, temperature, impedance and the like in the cavity of the right ventricle is monitored simultaneously, the blood temperature information with slow metabolic rate change is monitored, then crossed comparing with the oxyhemoglobin saturation information is provided, and thus the accuracy in monitoring the oxyhemoglobin saturation is improved; by monitoring the right ventricular apex impedance information with rapid change, the self-adaptation quick response ability of the pacing frequency is improved; by monitoring the temperature inside the photoelectricity volume wave sensor and the impedance change of the biological tissue attaching to the surface, the thickness variation of the attaching biological tissue is indirectly reflected, thus the LED emission current is dynamically adjusted, and therefore, the failure time of the photoelectricity volume sensor is prolonged.

Description

technical field [0001] The invention belongs to the field of biomedical engineering, and relates to a multi-sensor compound right ventricular electrode and a method for adaptively adjusting the pacing frequency of the fusion heart. Background technique [0002] More than 50% of pacemaker implanters have lost their spontaneous heart rhythm due to sick sinus syndrome, and more than 90% of these implanters choose to implant a frequency-adaptive cardiac pacemaker. In my country, although the proportion of implanted frequency-adaptive cardiac pacemakers exceeds 50% of the total implanted pacemakers each year, most of them rely on non-closed-loop control motion sensors for heart rhythm regulation. Sensitive, but not sensitive to changes in non-exercise metabolism such as emotion and mental activity, and in some special cases, for example, when the implanter goes down stairs, the heart rate will be faster than when the implanter goes up stairs, causing discomfort to the implanter. ...

AI Technical Summary

Problems solved by technology

Therefore, it is difficult for the blood oxygen saturation of the right ventricle to respond quickly to the rapid changes caused by intense exercise.

In addition, the fibrous tissue wrapped around the electrode gradually thickens with the implantation time, which may eventually block the optical window and make the photoplethysmometric wave sensor invalid.

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