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Wireless power transfer system for implantable devices in vivo based on electrorheological fluid metamaterials

A technology of wireless energy transmission and electrorheological fluid, applied in the direction of current collectors, electrical components, battery circuit devices, etc., can solve the limitations of metamaterial universality and flexibility of regulation, difficult system parameter dynamic response, parameter non-adjustable, etc. question

Active Publication Date: 2022-03-18
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Once the design and processing of metamaterials with fixed parameters is completed, the parameters cannot be adjusted, and it is difficult to dynamically respond to changes in system parameters, which limits the universality and flexibility of metamaterials.

Method used

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  • Wireless power transfer system for implantable devices in vivo based on electrorheological fluid metamaterials
  • Wireless power transfer system for implantable devices in vivo based on electrorheological fluid metamaterials
  • Wireless power transfer system for implantable devices in vivo based on electrorheological fluid metamaterials

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] like figure 1 As shown, the wireless power transmission system for implanted devices based on electrorheological fluid metamaterials of the present invention includes a transmitting module 1 , a receiving module 2 , an electrorheological fluid metamaterial module 3 , and a DC power supply 4 . The electrorheological fluid metamaterial module 3 is located between the transmitting module 1 and the receiving module 2 . The electrorheological fluid metamaterial module 3 amplifies and focuses the magnetic field generated by the transmitting module 1 and then couples it to the receiving module 2 . The DC power supply 4 is connected to the electrorheological fluid metamaterial module 3 . The receiving module 2 is connected with the battery of the implanted device in the body to provide power for the implanted device in the body.

[0024] The ...

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Abstract

A wireless power transmission system for implanted devices in vivo based on electrorheological fluid metamaterials, including a transmitting module, a receiving module, an electrorheological fluid metamaterial module and a DC power supply, and adopts a magnetic resonance coupling method for wireless power transmission. The electrorheological fluid metamaterial module is composed of electrorheological fluid metamaterial units, which can converge the magnetic field generated by the transmitting module and improve the efficiency of wireless energy transmission. By adjusting the applied electric field strength of the electrorheological fluid, the dielectric constant of the electrorheological fluid is changed, thereby changing the resonance frequency of the electrorheological fluid electromagnetic metamaterial and the equivalent magnetic permeability value at the operating frequency of the system, which has the advantage of flexible and adjustable parameters.

Description

technical field [0001] The invention relates to a wireless energy transmission system for implanting devices in the body. Background technique [0002] In vivo implantable devices play an important role in medical monitoring, drug delivery, local organ stimulation, etc. Battery life depends on the frequency and intensity of use of the device, and must be replaced when the charge reaches the usage threshold. In addition to the additional cost of battery replacement surgery, more importantly, it increases the risk of surgical infection for patients. Wireless power transfer could avoid the financial and health problems associated with battery replacement for implanted devices in the body. Improving the efficiency of wireless power transmission is an urgent problem to be solved for wireless power transmission of implanted devices in vivo. [0003] The patent "201210366827.5 Small-sized resonator and magnetic coupling resonance wireless energy transmission" discloses a small-s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/02H02J50/12H02J50/70
CPCH02J50/12H02J50/70
Inventor 张超刘国强李艳红宋佳祥
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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