REAL-TIME TRACKING OF A 3D-PRINTED SMART CAPSULE USING ON-BOARD NEAR-INFRARED LED ARRAY

被引：0

作者：

Jiang, Hongjie ^{[1
]}

Kim, Albert ^{[2
]}

Zhou, Jiawei ^{[1
]}

Rahimi, Rahim ^{[3
]}

Ziaie, Babak ^{[1
]}

机构：

[1] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA

[2] Temple Univ, Dept Elect & Comp Engn, Philadelphia, PA 19122 USA

[3] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA

来源：

2019 20TH INTERNATIONAL CONFERENCE ON SOLID-STATE SENSORS, ACTUATORS AND MICROSYSTEMS & EUROSENSORS XXXIII (TRANSDUCERS & EUROSENSORS XXXIII) | 2019年

基金：

美国国家科学基金会;

关键词：

NIR; Drug delivery; Position tracking; Smart capsule;

D O I：

10.1109/transducers.2019.8808508

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Accurate sensing and drug delivery at designated locations within the GI-tract is needed to increase the performance and efficacy of smart capsules. In this work, we utilize the near infrared (NIR) penetration of light within the tissue for real-time tracking of a 3D-printed capsule. The capsule incorporates an array of three 875 nm NIR-LEDs powered by an on-board battery. Ex vivo experiments using porcine tissue and a paired photodiode receiver showed a light penetration depth of 6.2 cm. Three on-board batteries (1.5 V, 10 mAh) can provide enough power to continuously track the capsule in the small intestine for 2 hours, thus providing a good coverage of capsule positioning in the jejunum.

引用

页码：2201 / 2204

页数：4

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