Fabrication and evaluation of a notched polymer optical fiber fabric strain sensor and its application in human respiration monitoring

Zheng, Weitao; Tao, Xiaoming; Zhu, Bo; Wang, Guangfeng; Hui, Chiyuan

doi:10.1177/0040517514528560

Cited by 46 publications

(37 citation statements)

References 29 publications

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“…Nontextile sensing devices have been integrated into belts and garments as well, including slidingplate capacitive strain sensors, [ 50 ] crystalline conductive polymer fi lm strain gauges, [ 57 ] and optical fi bers. [58][59][60] There are, however, some downsides to the textile-integrated sensors. First, there is an inherent tradeoff between comfort and sensitivity: to acquire a signal of suffi cient quality, the garment or belt needs to be tight.…”

Section: Reviewmentioning

confidence: 99%

Monitoring of Vital Signs with Flexible and Wearable Medical Devices

et al. 2016

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Advances in wireless technologies, low-power electronics, the internet of things, and in the domain of connected health are driving innovations in wearable medical devices at a tremendous pace. Wearable sensor systems composed of flexible and stretchable materials have the potential to better interface to the human skin, whereas silicon-based electronics are extremely efficient in sensor data processing and transmission. Therefore, flexible and stretchable sensors combined with low-power silicon-based electronics are a viable and efficient approach for medical monitoring. Flexible medical devices designed for monitoring human vital signs, such as body temperature, heart rate, respiration rate, blood pressure, pulse oxygenation, and blood glucose have applications in both fitness monitoring and medical diagnostics. As a review of the latest development in flexible and wearable human vitals sensors, the essential components required for vitals sensors are outlined and discussed here, including the reported sensor systems, sensing mechanisms, sensor fabrication, power, and data processing requirements.

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Section: Reviewmentioning

confidence: 99%

Monitoring of Vital Signs with Flexible and Wearable Medical Devices

et al. 2016

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“…Fabrics integrated with PMMA multimode fiber loops with a notch were demonstrated to be good large strain sensors up to 30% strain [140]. They have been used for respiration monitoring [141]. As a cool light source, side-emitting POFs were woven into flexible fabrics as wearable phototherapy devices [142,143], showing promise for treatment of conditions such as neonatal Jaundice.…”

Section: Health Monitoring and Promotionmentioning

confidence: 99%

Multifunctional Smart Optical Fibers: Materials, Fabrication, and Sensing Applications

et al. 2019

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This paper presents a review of the development of optical fibers made of multiple materials, particularly including silica glass, soft glass, polymers, hydrogels, biomaterials, Polydimethylsiloxane (PDMS), and Polyperfluoro-Butenylvinyleth (CYTOP). The properties of the materials are discussed according to their various applications. Typical fabrication techniques for specialty optical fibers based on these materials are introduced, which are mainly focused on extrusion, drilling, and stacking methods depending on the materials' thermal properties. Microstructures render multiple functions of optical fibers and bring more flexibility in fiber design and device fabrication. In particular, micro-structured optical fibers made from different types of materials are reviewed. The sensing capability of optical fibers enables smart monitoring. Widely used techniques to develop fiber sensors, i.e., fiber Bragg grating and interferometry, are discussed in terms of sensing principles and fabrication methods. Lastly, sensing applications in oil/gas, optofluidics, and particularly healthcare monitoring using specialty optical fibers are demonstrated. In comparison with conventional silica-glass single-mode fiber, state-of-the-art specialty optical fibers provide promising prospects in sensing applications due to flexible choices in materials and microstructures.

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“…Respiratory rate is the frequency of breaths and it provides important indications related to the health or physiological state of a patient. Techniques used to detect respiration activity include humidity [1,2], temperature [3], and movement of the human torso [4] during breathing. Generally, respiration monitoring sensors can be classified into contact (wearable) and non-contact types.…”

Section: Introductionmentioning

confidence: 99%

“…For the optical fiber based respiratory monitoring sensor, different types of fiber have been utilized and embedded in a textile in order to produce a wearable sensor. Types of optical fiber which have been reported to have been implemented in the wearable sensor include flexible polymeric optical fibers [10], fiber Bragg grating (FBG) [11] , macrobending of single-mode fiber [11] and notched side-ablated polymer optical fiber on a fabric substrate [4].…”

Section: Introductionmentioning

confidence: 99%