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A low electromagnetic radiation wireless charging system for visual prosthesis and its control method

A technology of electromagnetic radiation and visual prosthesis, which is applied in the field of biomedical engineering and can solve the problems of low transmission efficiency and poor electromagnetic safety.

Active Publication Date: 2021-08-20
MUDANJIANG MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of poor electromagnetic safety and low transmission efficiency in existing wireless power supply systems applied to implantable visual prostheses, the present invention provides the following technical solutions:

Method used

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  • A low electromagnetic radiation wireless charging system for visual prosthesis and its control method
  • A low electromagnetic radiation wireless charging system for visual prosthesis and its control method
  • A low electromagnetic radiation wireless charging system for visual prosthesis and its control method

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specific Embodiment 1

[0038] according to Figure 1 to Figure 6 As shown, the present invention provides a low electromagnetic radiation wireless charging system for visual prosthesis and its control method:

[0039] A wireless charging system for a visual prosthesis with low electromagnetic radiation, the system includes a nickel-iron alloy mirror frame 1 at an external transmitting end, a lens-type PCB transmitting end 2, an nickel-iron alloy mirror foot 3, a receiving coil 4, a voltage sensor 5, and a Bluetooth receiving module , Bluetooth transmitter module, DSP controller, switch, class E amplifier, DC power supply, compensation capacitor, uncontrolled rectification circuit and microelectrode controller;

[0040] The DC power supply is connected to a Class E amplifier, and the Class E amplifier is connected to a switch, and the switch is connected to a lens-type PCB transmitter 2, and the lens-type PCB transmitter 2 is installed in the nickel-iron alloy mirror frame 1 of the in vitro transmitt...

specific Embodiment 2

[0060] The purpose of the present invention is to solve the problems of poor electromagnetic safety and low transmission efficiency in the existing wireless power supply system applied to implantable visual prosthesis, and propose a low electromagnetic radiation wireless charging device for visual prosthesis and its charging control method. Combine below Figure 1 to Figure 6 Specific embodiments of the present invention will be described.

[0061] The system block diagram of the low electromagnetic radiation wireless charging system applied to the visual prosthesis described in the present invention is shown in the attached figure 1 As shown; in terms of circuit structure, the class E amplifier is powered by a DC power supply outside the body, and then the class E amplifier outputs a high-frequency voltage with a fixed frequency of MHz level; Conduction, the class E amplifier generates high-frequency alternating current in the conducting transmitting coil, and then excites ...

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Abstract

The invention relates to a wireless charging system for a visual prosthesis with low electromagnetic radiation and a control method thereof. The invention relates to the technical field of biomedical engineering, and relates to a wireless charging system for a visual prosthesis with low electromagnetic radiation. The system includes a nickel-iron alloy mirror frame at an external transmitter, a lens-type PCB transmitter, nickel-iron alloy mirror feet, a receiving coil, and a voltage sensor. , Bluetooth receiving module, Bluetooth transmitting module, DSP controller, switch, class E amplifier, DC power supply, compensation capacitor, uncontrolled rectification circuit and microelectrode controller. The present invention can provide stable energy transmission for the implanted visual prosthesis in the body in a wireless manner, so that the patient is freed from the shackles of the battery in the body, does not need to perform regular battery replacement operations, and reduces the operation risk and operation cost that the patient needs to bear.

Description

technical field [0001] The invention relates to the technical field of biomedical engineering, and relates to a wireless charging system for a visual prosthesis with low electromagnetic radiation and a control method thereof. Background technique [0002] Implantable medical devices - visual prostheses, can help visually impaired people, especially those suffering from retinitis pigmentosa and age-related macular degeneration, to restore vision. As an artificial organ, the visual prosthesis can bypass the damaged part of the human visual pathway, and directly transmit the external light-sensing information to the human brain by functionally electrically stimulating the visual nerve tissue, so as to achieve the purpose of repairing vision. The recovery of sight for blind patients opened up a new path. [0003] Visual prosthesis is an artificial organ implanted in the body. Its internal components, such as data transceiver unit, electrode stimulation controller and stimulatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/12A61N1/36
CPCA61N1/36046A61N1/3606A61N1/36125A61N1/36128H02J50/12
Inventor 李笑华帅天姣尹璐王睿石义鹭张旭春石金羽郭巍郭东青徐艳敏
Owner MUDANJIANG MEDICAL UNIV
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