Multi-coil Antenna System and Implantable Medical Devices

Abstract

The invention discloses a multi-coil antenna system, which includes a first communication device and a second communication device for two-way wireless communication. Wherein, the first communication device is placed outside the body and includes a first conformal antenna composed of a first coil and a third coil, and the second communication device is placed inside a body and includes a second conformal antenna composed of a second coil and a fourth coil. antenna and is biocompatible. The first coil is coupled with the corresponding second coil to form an energy channel, the third coil is coupled with the corresponding fourth coil to form a signal channel, and two noise reduction processes are performed on the signal channel. The first communication device transmits radio frequency energy and communication signals to the second communication device through the energy channel and signal channel respectively, and the second communication device receives the radio frequency energy and communication signals, and outputs corresponding feedback signals from the signal channel according to the radio frequency energy and communication signals to first communication device. The present invention further discloses an implantable medical device comprising the aforementioned multi-coil antenna system.

Description

technical field [0001] The invention relates to the medical field, in particular to a multi-coil antenna system and implanted medical equipment. Background technique [0002] With the development of medical technology and equipment, it has brought many conveniences to people and greatly enriched the treatment methods of diseases, and implantable medical equipment is one of them. [0003] Implantable medical devices can realize radio frequency energy transmission and two-way wireless communication between external devices and implanted devices in the body in a wireless manner. In order to realize radio frequency energy transmission and two-way wireless communication of implantable medical equipment, the prior art usually adopts: (1) single-frequency multi-coil system, for example, 13.56MHz single-frequency double-coil or multi-coil system; (2) ) dual-frequency multi-coil system, for example, a dual-frequency three-coil system. [0004] However, in the existing processing me...

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Problems solved by technology

[0004] However, in the existing processing methods, neither the single-frequency multi-coil system nor the dual-frequency multi-coil system can solve the problems of high-efficiency radio frequency energy transmission and high-speed two-way wireless communication.

The main difficulty is that due to the volume limitation of the implant coil, the radio frequency energy will cause serious interference to the signal coil, and the micro-movement of the coil in the body will also cause mismatch, and the wireless communication rate after simple modulation is not high

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