Implanted type self-adaptive wireless electric energy transmission system

Abstract

The invention discloses an implantable self-adaptive wireless power transmission system, which includes an external energy transmission module, an internal energy collection module and an adaptive feedback loop; the external energy transmission module includes a power amplification circuit, a signal source and a drive, and a transmission coil ; The power amplifying circuit adopts Class D, and is a voltage switch type; the self-adaptive feedback loop mainly includes in vivo information collection, in vivo and in vitro wireless communication, and in vitro energy control; the entire feedback structure is composed of two loops of in vivo feedback and system feedback circuit structure; the energy harvesting module in the body includes a receiving coil, a coupling capacitor, a full-wave rectification filter, a PWM modulation module, and an LSK modulation circuit. The invention proposes an implantable self-adaptive wireless power transmission system, which can not only meet the uninterrupted power supply requirements of implanted devices, but also make the energy transmission controllable and avoid excessive energy transmission.

Description

technical field [0001] The invention relates to the field of wireless power transmission systems, in particular to an implantable self-adaptive wireless power transmission system. Background technique [0002] The continuous progress of electronic technology, manufacturing technology and biomedical technology has prompted human beings to push medical research and clinical practice to a new level. Implantable medical equipment is a combination of electronic manufacturing technology and medicine. After being implanted in the body through surgical operations, it can be used for long-term monitoring of changes in physiological parameters in the body to achieve real-time, accurate measurement and Controlling, assisting in the diagnosis and treatment of some diseases, and even replacing some weakened or lost organs, its role in biological research and medical diagnosis has become increasingly prominent. With the improvement of people's living standards, its applications are becom...

AI Technical Summary

Problems solved by technology

The current basis of wireless energy transmission is the near-field mutual induction coupling theory, but the traditional mutual induction coupling structure has the disadvantage that the transmission efficiency decreases rapidly with the increase of distance, and the received and recovered power energy fluctuates obviously with the distance, which is easy to cause the damage of biological tissues. Damage, and because the excessive energy received will increase the temperature of the human body, and even damage human tissue, excessive electromagnetic radiation will also cause discomfort to the human body, and the realization of a large number of discrete components also increases the difficulty of implanting in the body

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