超音波遞能應用於植入式生醫裝置之關鍵技術可行性評估

Feasibility Study of Applying Ultrasonic energy to drive embeded biomedical devices

葉紹榮(Shao-Jung Yeh)

指導教授 ： 馮國華

國立中正大學/工學院/機械工程學系/碩士(2016年)

摘要

本篇論文主要在探討超聲波遞能應用於植入式生醫裝置的應用， 現下的植入型生醫電子設備都需要用到電池，或者需要將電池外接於體外，假設我們使用的是體外電源，會增加患者感染的風險，若是有一種無線傳輸能量的方法可以提供電源，那就可以改善這種狀況，至現今大部分的論文都做到高頻電壓整流又或者開始想辦法將做到能夠傳遞資料，而本篇論文則是整合前人的方法，並利用兩片PZT結合LTC3588、ESP8266做出超聲波遞能的相關應用。
以無線傳輸來說大至上分成兩類，一類是利用電磁感應的線圈的無線傳輸，就是我們所說的無線充電，另一類則是超音波遞能的方法，它有兼具不易產生高熱源以及在距離較長時相較感應線圈有較好的傳輸效率等優點，利用這些優點我們可以開發出一個利用超音波遞能做為能量來源的植入式生醫設備的雛型，並且藉由水熱法製做感測器期望可以利用在此系統的感測端上。

關鍵字

超音波遞能 ； 經皮遞能 ； 壓電材料

並列摘要

This thesis mainly studies the feasibility of wireless energy transfer through ultrasound. Recently, many implantable medical devices use battery as power sources or vitro electric sources. Using the vitro electric source could increase the risk of infections in patients. One method to solve this problem is taking advantage of ultrasound wireless energy transfer. Currently, most researches achieve a high frequency voltage rectifier and began to think of ways to transfer data. This thesis integrates previous methods, and use two PZT along with LTC3588, ESP8266 to make related applications.

We can divide wireless energy transfer in two ways. One way is using viainductively coupled coils, the other is ultrasound energy transfer. Ultrasound energy transfer has no excess heating and possesses higher efficiency than inductively coupled coils at a longer distance. We can use these advantages to investigate the application and make a prototype of implantable medical device.

並列關鍵字

Ultrasound energy transfer ； Transcutaneous energy transfer system ； PZT

參考文獻

[1] Katz, Evgeny. "Implantable biofuel cells operating in vivo: Providing sustainable power for bioelectronic devices: From biofuel cells to cyborgs." Advances in Sensors and Interfaces (IWASI), 2015 6th IEEE International Workshop on. IEEE, 2015.

[2] Seshimo, Takahito, Takahiko Yamamoto, and Kohji Koshiji. "Downsizing of coreless coils for transcutaneous energy transmission in implantable devices-improvement of coupling factor and efficiency between coils." Conference proceedings:... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference. Vol. 2013. 2013.

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[4] Jie Zhu,” OPTIMIZATION OF MATCHING LAYER DESIGN FOR MEDICAL ULTRASONIC TRANSDUCER”, The Pennsylvania State University,2008

[5] Denisov, Alexey, and Eric Yeatman. "Ultrasonic vs. inductive power delivery for miniature biomedical implants." 2010 International Conference on Body Sensor Networks. IEEE, 2010.