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首页> 外文会议>Optical Fibre Sensors pt.1 >Miniature Fiber Optic Pressure Sensor for Medical Applications: an Opportunity for Intra-Aortic Balloon Pumping (IABP) therapy
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Miniature Fiber Optic Pressure Sensor for Medical Applications: an Opportunity for Intra-Aortic Balloon Pumping (IABP) therapy

机译：用于医疗应用的微型光纤压力传感器：主动脉内球囊抽吸（IABP）治疗的机会

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摘要

In this paper we present how a miniature fiber optic pressure sensor based on micro-optical mechanical systems (MOMS) could solve most of the problems associated with fluidic pressure transduction presently used for triggering purposes in IABP therapy. The small size of the MOMS (Φ 550 μm) allows a positioning of the sensor directly at the tip of the intra-aortic catheter, exactly where the pressure should be monitored. With outstanding performances in terms of resolution and frequency fidelity, this absolute pressure sensor can precisely detect small pressure variations such as the dicrotic notch in the intra-aortic pressure waveform, which is used as a trigger point in IABP therapy. Such technology could probably help in the development of a less invasive therapy with reduced catheter size associated with reduction of vascular complications such as ischemia. The presented optical fiber sensor has intrinsic immunity to electromagnetic fields and noise perturbations. Furthermore, the patented white-light cross-correlation technology of the signal conditioner makes it immune to optical fiber binding and highly tolerant to optical losses. Such solution is extremely well adapted for in situ pressure monitoring in many medical applications.
机译：在本文中，我们介绍了一种基于微光学机械系统（MOMS）的微型光纤压力传感器如何解决目前与IABP治疗中用于触发目的的流体压力转换相关的大多数问题。 MOMS的尺寸很小（Φ550μm），可以将传感器直接定位在主动脉内导管的尖端，准确定位在应监测压力的位置。凭借在分辨率和频率保真度方面的出色性能，该绝对压力传感器可以精确地检测到较小的压力变化，例如主动脉内压力波形中的重瓣凹口，这被用作IABP治疗的触发点。此类技术可能有助于开发侵入性更强的疗法，减少导管尺寸，减少与血管并发症（例如缺血）相关的现象。提出的光纤传感器对电磁场和噪声扰动具有固有的抗扰性。此外，信号调节器获得专利的白光互相关技术使其不受光纤束缚，并高度容忍光损耗。这种解决方案非常适合于许多医疗应用中的现场压力监测。

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