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Wireless charging method with counterpoint automatic prompting function for implanted medical instrument

An implantable medical and automatic reminder technology, which is applied in the direction of current collectors, electric vehicles, electrical components, etc., can solve the problems of not having the automatic reminder function of alignment, etc., to improve stability and reliability, improve efficiency, and receive constant energy Effect

Active Publication Date: 2011-04-13
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The relevant patents that use rechargeable batteries to supply energy for implantable medical instruments do not have the function of automatic alignment prompts, but only the efficiency prompts in different situations

Method used

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  • Wireless charging method with counterpoint automatic prompting function for implanted medical instrument
  • Wireless charging method with counterpoint automatic prompting function for implanted medical instrument
  • Wireless charging method with counterpoint automatic prompting function for implanted medical instrument

Examples

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Embodiment Construction

[0047] In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solution: the device based on the wireless charging method with automatic alignment prompt function for implantable medical instruments, which is characterized in that it includes an in vitro charger and an implanted medical instrument in the body, Among them, the external charger includes an external power part and an external control part, and the implantable medical instrument in the body includes an internal power part and an internal control part. The external power part includes an external energy transmitting coil, and the internal power part includes an internal energy receiving coil. The external energy transmitting circuit generates alternating current to excite the external energy transmitting coil to generate an electromagnetic field, and the internal energy receiving coil receives the energy transmitted through the skin and even the titanium...

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Abstract

The invention discloses a wireless charging method with a counterpoint automatic prompting function for an implanted medical instrument, belonging to the field of implanted medical instruments. The wireless charging method is characterized in that after a corresponding device is established, a voltage on a rectifier output capacitance in an in vivo power part is collected by using a first microprocessor in an in vitro charger to serve as feedback quantity, the voltage deviation value between two feedbacks and the rate of change of voltage deviation are calculated, a fuzzy control rule is utilized to determine the variation of in vitro transmitting power, and the variation of the in vitro transmitting power is overlapped on a set transmitting power value for compensating the variation of the voltage on the rectifier output capacitance owing to shifting, charging stage variation and the like. By using the method, the counterpoint situation of in vivo / vitro coils can be automatically prompted in the process of charging, the charging efficiency is improved, the stability is improved and the radiation is reduced. Under the conditions of different counterpoint positions or different charging stages, the in vitro transmitting power is automatically regulated, and the radiation of the in vivo implanted medical instrument is effectively controlled in a reasonable range.

Description

technical field [0001] The invention relates to a percutaneous wireless charging method for implantable medical instruments, belonging to the technical field of implantable medical instruments. Background technique [0002] Implantable medical devices are increasingly used clinically for a variety of functions such as: cardiac pacemakers for the treatment of conduction disorders and heart failure; for the treatment of ventricular and atrial tachyarrhythmias Cardiac defibrillators for arrhythmia and fibrillation; neurostimulators for treating essential tremors, such as those caused by Parkinson's disease; cochlear implants for hearing impairment, and more. [0003] Currently, implantable medical devices using high-energy-density batteries typically last 3-5 years in a patient. However, due to the application of a primary battery, the device has to be re-operated to replace the device after the battery energy is exhausted. This type of device has a relatively large disadvanta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J17/00H02J50/10
Inventor 李路明王伟明郝红伟马伯志胡春华陈少波李青峰
Owner TSINGHUA UNIV
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