Multi-stage multi-faced magnetic resonance type heart cardiac pacemaker wireless charging system

Abstract

The invention provides a multi-stage multi-faced magnetic resonance type heart cardiac pacemaker wireless charging system. The multi-stage multi-faced magnetic resonance type heart cardiac pacemaker wireless charging system comprises a charging module and a pacemaker module, the charging module comprises a feedback signal amplification circuit, the feedback signal amplification circuit is communicated with a transmitting end main control circuit, the transmitting end main control circuit is communicated with a power source, the power source is communicated with a rectification circuit, the rectification circuit is communicated with a resonance circuit, the resonance circuit is communicated with a power amplification circuit, the power amplification circuit is communicated with a power coil, the charging module is internally further provided with a transmitting coil, and the power coil is magnetically coupled with the transmitting coil; the pacemaker module comprises a receiving coil, the receiving circuit is communicated with a resonance circuit, the resonance circuit is communicated with a signal conditioning circuit, the signal conditioning circuit is communicated with the rectification circuit, the rectification circuit is communicated with a voltage stabilizing circuit, the voltage stabilizing circuit is communicated with an automatic undervoltage switch-off and switch-on circuit, and the automatic undervoltage switch-off and switch-on circuit is communicated a pacemaker battery and a receiving end main control circuit; the transmitting coil is magnetically coupled withthe receiving coil, and the receiving end main control circuit is wirelessly communicated with the feedback signal amplification circuit.

Description

technical field [0001] The invention relates to wireless charging technology, in particular to a wireless charging system for a multilevel and multifaceted magnetic resonance cardiac pacemaker. Background technique [0002] Arrhythmia is a disease that everyone suffers from, and it is also the number one disease that causes death. Cardiac arrhythmia is an incurable disease with drugs - the wrong biochemical products can solve it. Today, about 5.7 million people in the United States alone are diagnosed with heart failure, meaning their hearts will gradually become less effective at pumping blood. Some seriously ill patients join waiting lists for heart transplants, but many die while waiting because donated hearts are scarce. The cardiac pacemaker is an electronic therapeutic device implanted in the body. It sends out electric pulses powered by the battery through the pulse generator, and through the conduction of the wire electrodes, it stimulates the myocardium in contact...

AI Technical Summary

Problems solved by technology

[0007] In the traditional wireless charging technology of magnetically coupled resonant artificial cardiac pacemakers, the magnetic coupler is mainly composed of two coils as the transmitting coil and the receiving coil, such as figure 1 , figure 2 As shown, the biggest defect of this method is that the transmission direction is fixed, and the patient cannot walk around at will, because when the coil in the patient's body and the transmitting coil are not in the coaxial position, the coupling coefficient between the transmitting coil and the receiving coil decreases, and the transmission efficiency of the system will decrease, such as image 3 As shown; when the transmitting coil and the receiving coil are coaxially placed in the magnetically coupled resonant wireless power transfer system, the coupling coefficient between the transmitting coil and the receiving coil is the largest, and the transmission efficiency of the system is the highest

[0008] However, when the artificial heart is implanted in the human body, it is difficult to ensure that the transmitting coil and the receiving coil are placed coaxially, resulting in a decrease in the coupling coefficient between the transmitting coil and the receiving coil.

When the patient is in an emergency, if the deviation between the receiving coil and the transmitting coil in the patient's body is too large, the patient cannot charge the implanted heart in time, and the patient's life safety cannot be guaranteed.

[0009] The traditional magnetically coupled resonant artificial heart uses two or three coils as a magnetic coupler. This charging method reduces surgical pain for elderly patients or patients with limited mobility, but also brings great difficulties, such as finding the coaxial position, Fixed charging position, etc.

Therefore, the traditional magnetic coupling resonant artificial cardiac pacemaker charging method is difficult to meet the power demand of patients in emergency situations and artificial cardiac pacemakers of special populations.

Images