Two-way radio communication device for implanting type medical instrument

Abstract

A two-way wireless communication device for implanted medical instruments relates to the field of implanted medical instruments. It is characterized in that it is composed of an implantable medical instrument communication circuit, an external program controller and a handheld computer PDA, the modulation / demodulation uses binary amplitude keying (2ASK) mode, the universal asynchronous receiving and receiving (UART) protocol uses RS-232 protocol, Data verification uses cyclic redundancy check CRC-16, data signaling and request-response mode for communication control. The communication method and device of the present invention are independent of the scale of communication data flow, have the advantages of simple implementation, reliable communication process, few devices used, low power consumption, etc., and can be widely used in various purposes of various implantable medical instruments small flow data communication.

Description

technical field [0001] The invention relates to a two-way wireless communication device for an implanted medical instrument and an external telemetry / program-controlled instrument, and belongs to the technical field of implanted medical instruments. Background technique [0002] There are many types of implantable medical devices, such as implantable cardiac pacemakers and defibrillators, brain pacemakers, nerve stimulators, muscle stimulators, ECG recorders, etc. It is composed of two parts, and information is exchanged between the two through two-way wireless communication. [0003] Communication technology for implantable medical instruments, characterized by low speed, short distance, low power consumption, and miniaturization. Under normal circumstances, due to the small amount of telemetry / program control data, a communication rate of more than tens of bytes per second can meet the requirements; implantable medical instruments are generally implanted under the skin, a...

AI Technical Summary

Problems solved by technology

In some short-distance electromagnetic coupling communication methods and devices reported in the literature, the inductance coil of the communication circuit of the implanted medical instrument and the coil of the external program controller generally adopt a coaxial coupling method. Although it is theoretically feasible, the implanted medical instrument is composed of a smooth The titanium shell is sealed and embedded in the body. It is difficult to achieve coaxial alignment in actual operation. The position tolerance performance is poor, which reduces the reliability of communication. Moreover, the implementation of communication is complicated, using many components and power consumption, which is difficult to achieve. Practical application in implantable medical devices

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