In-vivo implantable medical device wireless charging system

A wireless charging and implantable medical technology, applied in the field of medical devices, can solve the problem of slow response speed during positioning, and achieve the effect of fast response speed

Inactive Publication Date: 2017-11-07
CHANGZHOU RUISHENAN MEDICAL DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: in order to solve the technical problem of the slow corresponding speed of positioning in the prior art, thereby providing a wireless charging system for implantable medical equipment in the body with fast positioning speed and high charging efficiency

Method used

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  • In-vivo implantable medical device wireless charging system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a wireless charging system for implantable medical equipment in the body, including a charging terminal and a receiving terminal;

[0047] The charging terminal includes a control device 11, a signal generating device 12, a frequency offset device 13, a signal amplifying device 14, a state monitoring device 16, an antenna assembly 15, and a feedback device and / or a communication device (select one of the feedback device and the communication device) or both),

[0048] The signal generating device 12 is used to send out a set of square wave signals with opposite polarities and fixed phase difference, which is composed of at least two pairs of single square waves with opposite polarities, each pair of single square waves has a fixed phase difference, such as Figure 9 Two pairs of 4 single square waves are shown;

[0049] Frequency shifting device 13 is used for carrying out frequency shifting to the square wave signal that signal generating devi...

Embodiment 2

[0061] This embodiment provides a wireless charging method, including the following steps:

[0062] S1: send out a set of square wave signals with opposite polarities and fixed phase difference, the frequency of the square wave signal is 70% f0, where L is the inductance of the charging coil 31, the unit is H, C is the capacitance value of the matching capacitor, the unit is F, fo is the resonant frequency value, the unit is Hz;

[0063] S2: after the square wave signal is amplified by the signal amplifying device 14, an electromagnetic wave is formed by the charging coil 31, and the charging coil 31 is brought close to the receiving coil 21;

[0064] S3: Measure the power value of the signal amplifying device 14, adjust the position of the charging coil 31, find the position of the charging coil 31 when the power value is maximum, that is, complete the alignment of the charging coil 31 and the receiving coil 21;

[0065] S4: Keep the position of the charging coil 31, adjust...

Embodiment 3

[0068] This embodiment provides a wireless charging method, including the following steps:

[0069] S1: Send out a set of square wave signals with opposite polarities and fixed phase difference, the frequency of the square wave signal is 90% f0, where L is the inductance of the charging coil 31, the unit is H, C is the capacitance value of the matching capacitor, the unit is F, fo is the resonant frequency value, the unit is Hz;

[0070] S2: after the square wave signal is amplified by the signal amplifying device 14, an electromagnetic wave is formed by the charging coil 31, and the charging coil 31 is brought close to the receiving coil 21;

[0071] S3: Measure the power value of the signal amplifying device 14, adjust the position of the charging coil 31, find the position of the charging coil 31 when the power value is maximum, that is, complete the alignment of the charging coil 31 and the receiving coil 21;

[0072] S4: Keep the position of the charging coil 31, adjust...

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Abstract

The invention relates to an in-vivo implantable medical device wireless charging system which comprises a charging end and a receiving end. The charging end comprises a control device (11), a signal generating device (12), a frequency shifting device (13), a signal amplification device (14), a condition monitoring device (16), an antenna assembly (15), and a feedback device and / or a communication device. The receiving end is implanted in a human body, and comprises a receiving coil (21) and a rechargeable battery connected with the receiving coil (21). The receiving coil (21) is capable of receiving the electromagnetic wave of the antenna assembly (15) and generating current to charge the rechargeable battery. The in-vivo implantable medical device wireless charging system can quickly realize the alignment and positioning of the charging coil of the charging end and the receiving coil, which greatly improves the charging efficiency.

Description

technical field [0001] The invention relates to a wireless charging system for implanted medical equipment in the body, belonging to the technical field of medical equipment. Background technique [0002] There are various types of implantable medical devices and a wide range of applications. Most of the implantable medical products currently on the market are powered by lithium primary batteries with high energy density, and most of them have a short lifespan. In recent years, with the development of medical technology, the functions of implantable medical products have become more complex, and the power consumption has also increased. The life of conventional lithium primary batteries can no longer meet the current application requirements. Therefore, the development life is longer Long and rechargeable implantable medical device products have become the mainstream trend of future development. [0003] Since implantable medical products need to be implanted in the patient...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J50/20H02J50/90
CPCH02J7/025H02J50/20H02J50/90
Inventor徐文文张新国庄国志
OwnerCHANGZHOU RUISHENAN MEDICAL DEVICES