使用超声波进行通信的视频流生物医学植入物
Video-Streaming Biomedical Implants using Ultrasonic Waves for Communication
摘要：
无线植入式医疗器械（IMD）的使用正在增长，因为它们有助于在正常活动期间对患者进行连续监测，简化数据检索所需的医疗程序，并降低与拖曳线相关的感染可能性。然而，大多数最先进的IMD都是无源和离线设备。有源在线IMD的关键障碍之一是IMD无法进行实时高质量视频广播。这种广播将有助于开发创新设备，如具有治疗干预能力的视频流胶囊式内窥镜（CE）药丸。最先进的IMD采用射频电磁波进行信息传输。然而，组织中RF-EM波的高衰减以及联邦对发射功率和可操作带宽的限制导致采用RF链路的IMD的基本性能限制，并阻止实现可容纳视频广播的高数据速率。在这项工作中，超声波被用于通过生物组织进行视频传输和广播。所提出的概念验证系统进行了测试，在猪肠道离体和兔体内。结果表明，使用毫米大小的植入式生物相容性换能器，在1.1-1.2 MHz下工作，可以通过包裹有培根的猪肠传输高分辨率（1280像素× 720像素）的内窥镜视频，并通过兔腹部在体内近实时广播标准清晰度（640像素× 480像素）视频。一个媒体库，包括实验演示和媒体文件伴随本文。附带的媒体库可以在以下链接中找到：https://bit.ly/3wuc7tk。
英文摘要：
The use of wireless implanted medical devices (IMDs) is growing because they facilitate continuous monitoring of patients during normal activities, simplify medical procedures required for data retrieval and reduce the likelihood of infection associated with trailing wires. However, most of the state-of-the-art IMDs are passive and offline devices. One of the key obstacles to an active and online IMD is the infeasibility of real-time, high-quality video broadcast from the IMD. Such broadcast would help develop innovative devices such as a video-streaming capsule endoscopy (CE) pill with therapeutic intervention capabilities. State-of-the-art IMDs employ radio-frequency electromagnetic waves for information transmission. However, high attenuation of RF-EM waves in tissues and federal restrictions on the transmit power and operable bandwidth lead to fundamental performance constraints for IMDs employing RF links, and prevent achieving high data rates that could accomodate video broadcast. In this work, ultrasonic waves were used for video transmission and broadcast through biological tissues. The proposed proof-of-concept system was tested on a porcine intestine ex vivo and a rabbit in vivo. It was demonstrated that using a millimeter-sized, implanted biocompatible transducer operating at 1.1-1.2 MHz, it was possible to transmit endoscopic video with high resolution (1280 pixels by 720 pixels) through porcine intestine wrapped with bacon, and to broadcast standard definition (640 pixels by 480 pixels) video near real-time through rabbit abdomen in vivo. A media repository that includes experimental demonstrations and media files accompanies this paper. The accompanying media repository can be found at this link: https://bit.ly/3wuc7tk.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
