Wireless energy supply device for implantable wireless telemetry

Abstract

The invention discloses a wireless energy supply device for implantable wireless telemetry, comprising an external circuit module, an implantable receiving coil and an importable internal circuit module, the latter two of which are electrically connected with each other, wherein a multi-axis energy emission module is arranged outside an object to be measured; the multi-axis energy emission modulecomprises a base and more than one flat multi-axis coupling emission coil set fixed on the upper surface of the base; the multi-axis coupling emission coil sets are respectively electrically connected with the external circuit module; and each multi-axis coupling emission coil set consists of a core and more than two coils wound on the core, and more than two coils are mutually crossed without overlapping. The wireless energy supply device provided by the invention is featured by multi-axial coupling and the anti-slanting property of the implantable receiving coil is improved; according to a position of an animal in a feeding cage, different multi-axis coupling emission coil sets are selected for supplying energy to improve power supplying efficiency; and the wireless energy supply deviceis suitable for wireless power supply of the implantable wireless telemetry in little animal experiments.

Description

technical field [0001] The invention belongs to the field of implantable wireless energy supply, and in particular relates to the wireless energy supply of small animal implantable wireless telemetry in the free-moving state in animal experiments. Background technique [0002] With the development of IC (Integrated Circuit) technology and MEMS (Micro-Electro-Mechanical System) technology, implantable wireless telemetry has been widely used in the biomedical field due to its advantages of no constraint, accurate measurement and real-time monitoring, mainly implantable temperature Testing, implantable blood pressure testing, implantable blood sugar testing, etc. These implantable devices can be implanted in the human body for health monitoring, and can also be implanted in small animals (such as rats) for long-term scientific experiments. [0003] Since this type of device is implanted in the body, replacing the battery requires surgery to remove it, which brings additional t...

AI Technical Summary

Problems solved by technology

[0004] The current wireless electromagnetic coupling power supply generally requires that the transmitting coil and the implanted receiving coil be coaxially placed in parallel to ensure the efficiency of electromagnetic coupling. The implanted receiving coil is tilted and cannot be coaxially parallel with the external transmitting coil, the electromagnetic coupling efficiency is low, and even the implanted wireless telemetry device does not work

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