2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)最新文献_第3页

A novel method for pulse transit time estimation using wrist bio-impedance sensing based on a regression model 基于回归模型的腕部生物阻抗脉冲传递时间估计新方法

2017 IEEE Biomedical Circuits and Systems Conference (BioCAS) Pub Date : 2017-10-01 DOI: 10.1109/BIOCAS.2017.8325054

Bassem Ibrahim, A. Akbari, R. Jafari

引用次数: 22

Wearable pulse wave velocity sensor using flexible piezoelectric film array 采用柔性压电薄膜阵列的可穿戴式脉冲波速传感器

2017 IEEE Biomedical Circuits and Systems Conference (BioCAS) Pub Date : 2017-10-01 DOI: 10.1109/BIOCAS.2017.8325551

Takumi Katsuura, S. Izumi, M. Yoshimoto, H. Kawaguchi, S. Yoshimoto, T. Sekitani

{"title":"Wearable pulse wave velocity sensor using flexible piezoelectric film array","authors":"Takumi Katsuura, S. Izumi, M. Yoshimoto, H. Kawaguchi, S. Yoshimoto, T. Sekitani","doi":"10.1109/BIOCAS.2017.8325551","DOIUrl":"https://doi.org/10.1109/BIOCAS.2017.8325551","url":null,"abstract":"This report describes our proposed method of measuring pulse wave velocity (PWV) using a flexible piezoelectric film array. PWV is important cardiovascular information that can contribute to the early detection and treatment of hypertension and arteriosclerosis. Conventional methods used to calculate PWV measure the pulse transit time (PTT) between pulse waves measured at multiple positions of the body, or between an electrocardiogram (ECG) and a pulse wave. These methods require multiple devices to be worn on the body. By contrast, the proposed method realizes PTT measurement and PWV estimation using a single device incorporating a piezoelectric film array. Although it requires extraction of slight differences of pulse arrival times between pressure pulse waves with low signal-noise ratio (SNR), we introduce a signal processing method using cross correlation to resolve this difficulty. The proposed algorithm was applied to the pressure pulse wave measured using the prototype sensor at two points on the wrist. Measurements of four participants using the reference sensor confirmed that positive correlation was obtained with measured PTT. The correlation coefficient was as high as 0.94 with a low-noise condition.","PeriodicalId":361477,"journal":{"name":"2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115084005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20

Neural stimulation interface with ultra-low power signal conditioning circuit for fully-implantable cochlear implants 全植入式人工耳蜗超低功率信号调理电路的神经刺激接口

2017 IEEE Biomedical Circuits and Systems Conference (BioCAS) Pub Date : 2017-10-01 DOI: 10.1109/BIOCAS.2017.8325060

H. Uluşan, S. Chamanian, Ö. Zorlu, A. Muhtaroğlu, H. Kulah

引用次数: 4

A low power architecture for AER event-processing microcontroller AER事件处理微控制器的低功耗结构

2017 IEEE Biomedical Circuits and Systems Conference (BioCAS) Pub Date : 2017-10-01 DOI: 10.1109/BIOCAS.2017.8325170

S. Aiassa, P. Ros, G. Masera, M. Martina

引用次数: 5

A patch-type wireless forehead pulse oximeter for SpO2 measurement 一种用于SpO2测量的贴片式无线额头脉搏血氧仪

2017 IEEE Biomedical Circuits and Systems Conference (BioCAS) Pub Date : 2017-10-01 DOI: 10.1109/BIOCAS.2017.8325557

A. Azhari, S. Yoshimoto, T. Nezu, Hirokazu Iida, Hiroki Ota, Yuki Noda, T. Araki, T. Uemura, T. Sekitani, Katsuyuki Morii

{"title":"A patch-type wireless forehead pulse oximeter for SpO2 measurement","authors":"A. Azhari, S. Yoshimoto, T. Nezu, Hirokazu Iida, Hiroki Ota, Yuki Noda, T. Araki, T. Uemura, T. Sekitani, Katsuyuki Morii","doi":"10.1109/BIOCAS.2017.8325557","DOIUrl":"https://doi.org/10.1109/BIOCAS.2017.8325557","url":null,"abstract":"A patch-type wireless wearable pulse oximeter system has been developed to measure the heart beat rate and oxygen saturation of blood (SpO2) in reflective mode from a person's forehead. The system uses light sources of two wavelengths (red, 625 nm; infrared, 865 nm) in an optical sensor, separates photodetector signal and transimpedance amplifier output into infrared (IR) and red photoplethysmographic (PPG) signals, and then digitizes and transmits data wirelessly via a Bluetooth module to a remote PC in real time, where the SpO2 value is calculated. The optical sensor, mounted on a 7 cm × 2 cm flexible sheet, is interfaced with an 8.5 cm × 3.5 cm wireless SpO2 circuit board. The entire sensor and wireless SpO2 system, which weighs only 15 g, is readily wearable on the forehead, unlike conventional non-wearable wired forehead pulse oximeters. Using our system, the reduction of SpO2 value was observed from 100% to 89%, under an 80 s breathhold condition, which matched with the simultaneously measured SpO2 values obtained using commercial pulse oximeters.","PeriodicalId":361477,"journal":{"name":"2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126848812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Modeling of mm-sized solenoid coils with ferrite tube core for biomedical implants 生物医学植入体用mm尺寸铁氧体管芯电磁线圈的建模

2017 IEEE Biomedical Circuits and Systems Conference (BioCAS) Pub Date : 2017-10-01 DOI: 10.1109/BIOCAS.2017.8325111

Yuhua Cheng, Dongdong Xuan, G. Qian, Guoxiong Chen, Maysam Ghovanloo, Gaofeng Wang

引用次数: 0

An area/power efficient electrode-matched neural-spike detector embedded in implantable 256-channel MEA 区域/功率高效的电极匹配神经尖峰检测器嵌入可植入的256通道MEA

2017 IEEE Biomedical Circuits and Systems Conference (BioCAS) Pub Date : 2017-10-01 DOI: 10.1109/BIOCAS.2017.8325057

Myungjin Han, G. Ha, Eunji Cheong, G. Han, Youngcheol Chae

引用次数: 2

Stability improvement and noise suppression in non-contact in-bed electrocardiogram measurement using laminated feedback electrode 层压反馈电极在非接触式床上心电图测量中的稳定性改善和噪声抑制

2017 IEEE Biomedical Circuits and Systems Conference (BioCAS) Pub Date : 2017-10-01 DOI: 10.1109/BIOCAS.2017.8325153

Mayuko Takano, Hiromu Komiya, A. Ueno

引用次数: 3

A photochemical dongle for point-of-care evaluation of blood lipid level 一种用于即时评估血脂水平的光化学加密狗

2017 IEEE Biomedical Circuits and Systems Conference (BioCAS) Pub Date : 2017-10-01 DOI: 10.1109/BIOCAS.2017.8325049

Xiwei Huang, Jinhong Guo

引用次数: 2

Low power, low area, analog blink restoration system with auto sleep mode for unilateral facial paralysis patients 低功耗，低面积，单侧面瘫患者自动睡眠模式模拟眨眼恢复系统

2017 IEEE Biomedical Circuits and Systems Conference (BioCAS) Pub Date : 2017-10-01 DOI: 10.1109/BIOCAS.2017.8325064

M. G. L. Kumar, R. S. Sairam, G. D. V. S. Kumar, S. Vanjari

{"title":"Low power, low area, analog blink restoration system with auto sleep mode for unilateral facial paralysis patients","authors":"M. G. L. Kumar, R. S. Sairam, G. D. V. S. Kumar, S. Vanjari","doi":"10.1109/BIOCAS.2017.8325064","DOIUrl":"https://doi.org/10.1109/BIOCAS.2017.8325064","url":null,"abstract":"Functional Electrical Stimulation is considered as one of the potential solutions for restoring the functionality of orbicularis oculi (a muscle that is responsible for eye-lid closure) in the patients suffering from Bells palsy. In this paper, we propose a synchronized blink function restoration system, wherein, the muscular activity of the healthy orbicularis oculi is sensed using EMG electrodes and a corresponding triggering pulse is provided to the non-functional muscle almost instantaneously. In this paper, we present the design of a low power blink restoration system comprising only low power analog blocks. The noise cancellation and filtration which typically is carried out in digital domain is replaced with a simple analog architecture. This resulted in a two fold reduction in power and more than hundred fold reduction in area. Furthermore, the designed system takes care of any false positives due to motion artifact. A simple mono-stable system based auto sleep mode is implemented to save power when the system is not in use. This analog blink restoration system designed in UMC 180nm CMOS technology has a Pre-amplifier gain of 20dB at 270Hz to 470Hz, CMRR > 70dB, input referred noise of less than 2 μVrms. It consumes power of 6 μW at 1.2V supply voltage and an area of 0.095 mm2.","PeriodicalId":361477,"journal":{"name":"2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128102805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1