压力传感器
材料科学
支架
生物相容性材料
聚己内酯
涂层
无线
3d打印
无线传感器网络
生物医学工程
聚合物
纳米技术
计算机科学
复合材料
外科
机械工程
医学
电信
工程类
计算机网络
作者
Jong Sung Park,Ji-Kwan Kim,Su A Park,Dong‐Weon Lee
标识
DOI:10.1016/j.mee.2018.12.007
摘要
In this paper, we present a 3D-printed biocompatible and biodegradable polymer stent with an integrated wireless pressure sensor, designed for advanced health monitoring applications. The Polycaprolactone (PCL) based polymer stent has a drug coating similar to conventional drug-eluting stents (DES) and a wireless pressure sensor that enables the real-time measurement of pressure inside the blood vessel. The wireless pressure sensor is made of poly(d-lactide) (PDLA), a biocompatible material that can be decomposed and absorbed together with the polymer stent in the body. The resonance frequency of the fabricated wireless pressure sensor (initially 148 MHz) decreases with blood pressure changes. Experimental results indicate that the sensitivity of the wireless pressure sensor (60 kHz/mmHg) shows a linear frequency shift within the pressure range of 0–220 mmHg.
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