Multi-Access Networking with Wireless Ultrasound-Powered Implants.

IEEE Biomedical Circuits and Systems Conference : healthcare technology : [proceedings]. IEEE Biomedical Circuits and Systems Conference Pub Date : 2019-10-01 Epub Date: 2019-12-05 DOI:10.1109/BIOCAS.2019.8919144

Ting Chia Chang, Max Wang, Amin Arbabian

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引用次数: 5

Abstract

Multi-access networking with miniaturized wireless implantable devices can enable and advance closed-loop medical applications to deliver precise diagnosis and treatment. Using ultrasound (US) for wireless implant systems is an advantageous approach as US can beamform with high spatial resolution to efficiently power and address multiple implants in the network. To demonstrate these capabilities, we use wirelessly powered mm-sized implants with bidirectional communication links; uplink data communication measurements are performed using time, spatial, and frequency-division multiplexing schemes in tissue phantom. A 32-channel linear transmitter array and an external receiver are used as a base station to network with two implants that are placed 6.5 cm deep and spaced less than 1 cm apart. Successful wireless powering and uplink data communication around 100 kbps with a measured bit error rate below 10^-4 are demonstrated for all three networking schemes, validating the multi-access networking feasibility of US wireless implant systems.

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无线超声植入物的多接入网络。

带有微型无线植入式设备的多址网络可以实现和推进闭环医疗应用，以提供精确的诊断和治疗。在无线植入系统中使用超声是一种有利的方法，因为超声可以以高空间分辨率进行波束形成，从而有效地为网络中的多个植入物供电和寻址。为了证明这些能力，我们使用了无线供电的毫米大小的植入物，带有双向通信链路;上行数据通信测量使用时间、空间和频分复用方案在组织幻象中执行。一个32通道的线性发射器阵列和一个外部接收器被用作基站，两个植入物放置在6.5厘米深，间隔小于1厘米。在所有三种网络方案中，成功的无线供电和上行数据通信在100 kbps左右，测量误码率低于10-4，验证了美国无线植入系统多接入网络的可行性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IEEE Biomedical Circuits and Systems Conference : healthcare technology : [proceedings]. IEEE Biomedical Circuits and Systems Conference

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