Browsing by Author "Ko, Mei-Ju"

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Design of wireless multi-parameter monitoring system for oral feeding of premature infants
(2016-07)
Wang, Yu-Lin
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Kuo, Hsing-Chien
;
Wang, Lin-Yu
;
Ko, Mei-Ju
;
Lin, Bor-Shyh
Premature infants often cannot successfully and coordinately complete their oral feeding. Mature sucking, swallowing, and respiration activities are crucial indicators for the survival of newborn infants. Due to the vulnerability and unobvious muscle activities of premature infants, current clinical care givers mainly depend on the subjective behavioral observation of infants during oral feeding. There is still lack of an integrated oral feeding monitoring system to objectively and quantifiably monitor the related physiological parameters of premature infants. In this study, a wireless multi-parameter monitoring system for oral feeding of premature infants was proposed to monitor the sucking-swallowing-respiratory activities and the heart rate variability to provide quantitative indices of oral feeding. Here, a novel sucking pressure sensing module was also developed to monitor the premature infant\'s sucking pressure under oral feeding to avoid the immersion influence of milk. The experimental results showed that the proposed system detected the related physiological parameters of premature infants during oral feeding effectively and may provide an objective clinical evaluation tool for oral feeding ability and safety of premature infants in the future.
Development of a Wireless Oral-Feeding Monitoring System for Preterm Infants
(2015-05-01)
Wang, Yu-Lin
;
Hung, Jing-Sheng
;
Wang, Lin-Yu
;
Ko, Mei-Ju
;
Chou, Willy
Oral-feeding disorder is common in preterm infants. It not only shows the adverse effect for growth and neurodevelopment in clinical but also becomes one of the important indicators of high-risk group for neurodevelopment delay in preterm infants. Preterm infants must coordinate the motor patterns of sucking, swallowing, and respiration skillfully to avoid choking, aspiration, oxygen desaturation, bradycardia, or apnea episodes. However, up to now, the judgment and classification severity in preterm infants are mostly subjective and phasic evaluations. Directly monitoring the coordination of sucking-swallowing-breathing during oral feeding simultaneously is difficult for preterm infants. In this study, we proposed a wireless oral-feeding monitoring system for preterm infants to quantitatively monitor the sucking pressure via a designed sucking pressure sensing device, swallowing activity via a microphone to detect swallowing sound, and diaphragmatic breathing movement via surface electromyogram. Moreover, a sucking-swallowing-breathing detection algorithm is also proposed to evaluate the events of sucking-swallowing-breathing activities. Furthermore, verification of the accuracy and rationality of oral-feeding parameters with clinical findings including sucking, swallowing, and breathing in term and preterm infants had proved the practicality and value of the proposed system.
Wireless and Wearable Monitoring Device for Dysphagia Evaluation
(2015)
Chou, Willy
;
Ou, Chien-Zhi
;
Lin, Bor-Shyh
;
Ko, Mei-Ju
;
Hu, Shao-Pu
Dysphagia is a common complication of strokes, and the patients usually have clinical problems such as malnutrition, significant weight loss, and aspiration pneumonia. Measuring the muscle activity pattern to describe physiology of swallowing behavior by surface electromyography (sEMG) is a simple, non-radioactive, and non-invasive method. Most of previous studies described the swallowing behavior by the terms of amplitude and duration. However, there is no objective and precise approach to evaluate swallowing coordination. For more precisely evaluate swallowing coordination of dysphagia, a wireless and wearable monitoring device was designed to measure four muscle groups simultaneously under swallowing. In this study, the algorithm of bilateral muscle pattern detecting was also developed to extract and analysis the difference swallowing feature of sEMG patterns. The experimental result shows that the amplitude and latency variation for dysphagic patients are significantly larger than those for healthy subjects under different swallowing conditions.
Wireless Monitoring System for Oral-Feeding Evaluation of Preterm Infants
(2015-10-01)
Chen, Chang-Ting
;
Wang, Yu-Lin
;
Wang, Chen-An
;
Ko, Mei-Ju
;
Fang, Wai-Chi
The oral feeding disorder is one of the important indicators for the high risk group of neurodevelopment delay. The procedure of oral feeding requires the coordination of sucking, swallowing, and breathing activities, and it is the most complex sensorimotor process for newborn infants. Premature infants often uneasily complete the procedure of oral feeding. However, the evaluation of the oral feeding disorders and severity are usually dependent on the subjective clinical experience of the physician. Monitoring the sucking-swallowing-breathing activities directly is difficult for preterm infants. In this study, a wireless monitoring system for oral-feeding evaluation of full term and preterm infants was proposed to objectively and quantitatively evaluate the coordination of suck-swallow-respiration function during oral feeding. Moreover, the ratios of the swallowing and breathing event numbers to the sucking event number were defined to evaluate the coordination of suck-swallow-respiration function during oral feeding. Finally, the system performance was validated and the coordination of suck-swallow-respiration function for full term and preterm infants during oral feeding was also investigated.