A. Tantin, Antoine Letourneau, Mohamed Zgaren, S. Hached, I. Clausen, M. Sawan
{"title":"Implantable MICS-based wireless solution for bladder pressure monitoring","authors":"A. Tantin, Antoine Letourneau, Mohamed Zgaren, S. Hached, I. Clausen, M. Sawan","doi":"10.1109/BIOCAS.2017.8325205","DOIUrl":"https://doi.org/10.1109/BIOCAS.2017.8325205","url":null,"abstract":"This paper covers the design, development and prototyping of an implantable wireless bladder pressure monitoring system. The proposed device is an essential part of a novel health solution intended for patients with bladder dysfunctions. It allows the urologist to closely monitor the intravesical pressure and the patient to evacuate the collected urine on time, thus increasing his quality of life. The proposed implant includes a minimal number of components. Communication is performed through FDA-approved on-device RF transceivers, and an external base station. The base station integrates a Microsemi's ZL70120 module while the communication implant employs a ZL70123. Pressure measurement is made with custom built biocompatible Piezo-resistive pressure sensor probes operated in differential mode. The implant achieves a power consumption of 2.1 mW in sleeping mode while the consumption in operating mode is 18.6 mW. The communication range is around 2.5 meters. System design and experimental results are reported and discussed.","PeriodicalId":361477,"journal":{"name":"2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)","volume":"453 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":"124301909","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}
H. Farkhani, Mohammad Tohidi, Sadaf Farkhani, J. K. Madsen, F. Moradi
{"title":"An energy efficient neuromorphic computing system using real time sensing method","authors":"H. Farkhani, Mohammad Tohidi, Sadaf Farkhani, J. K. Madsen, F. Moradi","doi":"10.1109/BIOCAS.2017.8325233","DOIUrl":"https://doi.org/10.1109/BIOCAS.2017.8325233","url":null,"abstract":"In spintronic-based neuromorphic computing systems (NCS), the switching of magnetic moment in a magnetic tunnel junction (MTJ) is used to mimic neuron firing. However, the stochastic switching behavior of the MTJ and process variations effect leads to extra stimulation time. This leads to extra energy consumption and delay of such NCSs. In this paper, a new real-time sensing (RTS) circuit is proposed to track the MTJ state and terminate stimulation phase immediately after MTJ switching. This leads to significant degradation in energy consumption and delay of NCS. The simulation results using a 65-nm CMOS technology and a 40-nm MTJ technology confirm that the energy consumption of a RTS-based NCS is improved by 50% in comparison with a typical NCS. Moreover, utilizing RTS circuit improves the overall speed of an NCS by 2.75x.","PeriodicalId":361477,"journal":{"name":"2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)","volume":"77 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":"121867889","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}
{"title":"An embedded FPGA accelerator for a stand-alone dual-mode assistive device","authors":"A. Jafari, Maysam Ghovanloo, T. Mohsenin","doi":"10.1109/BIOCAS.2017.8325547","DOIUrl":"https://doi.org/10.1109/BIOCAS.2017.8325547","url":null,"abstract":"This paper presents a stand-alone Dual-mode Tongue Drive System (sdTDS) which is designed for people with severe disabilities to control their environment using their tongue motion and speech. The sdTDS detects user's tongue motion using a magnetic tracer placed on tongue and an array of magnetic sensors embedded in a wireless headset and at the same time it can capture the user's voice using a small microphone embedded in the same headset. A real-time FPGA-based local processor is proposed which can perform all required signal processing to convert raw data generated by magnetic sensors and microphone to user commands at sensor side, rather than sending all raw data out to a PC or smartphone. The proposed sdTDS significantly reduces the transmitter power consumption and subsequently increases the battery life. Assuming the sdTDS user issues one command every 20 ms, implementing the proposed local processor reduces the data volume that needs to be wirelessly transmitted from 25.6 kb/s to 0.3 kb/s. To evaluate the functionality and performance of the sdTDS processor, it has been implemented on a Xilinx Zynq SoC device (ARM+Artix FPGA) and at frequency of 100 MHz, it consumes 2 mJ energy. The detection accuracy is 96.6% for tongue motion, and 97.5% for speech recognition.","PeriodicalId":361477,"journal":{"name":"2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)","volume":"54 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":"124946402","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}
Zeliang Wu, Hanjun Jiang, Yanshu Guo, Chun Zhang, Wen Jia, Zhihua Wang
{"title":"Live demonstration: Wireless intracranial pressure monitoring system based on an air pressure sensor","authors":"Zeliang Wu, Hanjun Jiang, Yanshu Guo, Chun Zhang, Wen Jia, Zhihua Wang","doi":"10.1109/BIOCAS.2017.8325094","DOIUrl":"https://doi.org/10.1109/BIOCAS.2017.8325094","url":null,"abstract":"We demonstrate a novel wireless intracranial pressure (ICP) monitoring system based on air pressure sensing. This system consists of an implantable ICP monitoring device, a wireless ICP data recorder and a data display software. The ICP monitoring device is implanted outside the skull and under the scalp while an air-pouch is inserted into the cranial space to measure the ICP value. The measured pressure value is transmitted to the wireless data recorder outside the body in the 416 MHz band. The real-time ICP values are transmitted to the display software for history data reviewing, storage and further processing. This system can be attractive in two ways: 1) high ICP measuring resolution and accuracy, 2) low damage to brain tissues compared to the conventional implantable wireless ICP systems.","PeriodicalId":361477,"journal":{"name":"2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)","volume":"35 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":"131793629","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}
{"title":"A 2.1 μW event-driven wake-up circuit based on a level-crossing ADC for pattern recognition in healthcare","authors":"G. Rovere, S. Fateh, L. Benini","doi":"10.1109/BIOCAS.2017.8325145","DOIUrl":"https://doi.org/10.1109/BIOCAS.2017.8325145","url":null,"abstract":"We report an asynchronous wake-up circuit with pattern recognition capabilities to duty-cycle biomedical system-on-chips in internet-of-things healthcare applications. The wake-up circuit is based on a level-crossing analog-to-digital converter to reduce both the number of samples and processing power. On-chip voltage references lower the overall system power consumption and reduce the number of external components. The circuit is highly configurable and can be used for a wide variety of applications. A 130 nm CMOS prototype is demonstrated with pathological electrocardiogram with premature ventricular contractions, reaching 74.8% of accuracy with only 2.1 μW at 1V supply.","PeriodicalId":361477,"journal":{"name":"2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)","volume":"2 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":"122272605","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}
{"title":"A high frequency, high frame rate front end for electrical impedance tomography","authors":"M. Takhti, Yueh-Ching Teng, K. Odame","doi":"10.1109/BIOCAS.2017.8325061","DOIUrl":"https://doi.org/10.1109/BIOCAS.2017.8325061","url":null,"abstract":"Electrical impedance tomography (EIT) is an imaging modality that takes spectral images of the tissue under study. The EIT imaging approach, compared to the other imaging techniques such as X-ray, offers an affordable, non-ionizing portable device for home health monitoring. A front-end with high frame rate that covers a wide range of frequencies is essential for such applications. This paper presents the circuit design and implementation of a high frequency, high frame rate front-end for electrical impedance tomography system. The proposed front-end comprises a wide bandwidth programmable gain instrumentation amplifier, a mega-sample per second analog-to-digital converter (ADC), and an ADC driver. The readout channel is designed and fabricated in a 0.18 μm CMOS technology. The measurement results show that the proposed front-end covers the wide frequency range of 100 Hz to 10 MHz, with a frame rate of 30 frames per second for a 16-electrode system, with an average signal-to-noise ratio of more than 60 dB. The entire read-out channel consumes between 6.9 mW and 21.8 mW based on its operation frequency.","PeriodicalId":361477,"journal":{"name":"2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)","volume":"22 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":"115057006","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}
L. Boschis, N. Ciprianetti, D. Spadaro, M. Gullino, Riccardo Rinaldi, C. Garino, M. Arlorio
{"title":"Smart micro-sensing: Antibodies and aptamer-based micro-ELISA as performing offline/on line tool for allergens and mycotoxins detection in foods","authors":"L. Boschis, N. Ciprianetti, D. Spadaro, M. Gullino, Riccardo Rinaldi, C. Garino, M. Arlorio","doi":"10.1109/BIOCAS.2017.8325179","DOIUrl":"https://doi.org/10.1109/BIOCAS.2017.8325179","url":null,"abstract":"Concerning food safety, the interest for smart and portable biosensor is growing. On the other side, current commercial solution still does not reach performance comparable to laboratory test. Micro-ELISA is a smart portable biosensor useful in implementing the paradigms of the Process Analytical Technology (PAT) to the food industry. The use of this biosensor device (Lab-On-a-Chip disposable card, LOC) is a promising tool devoted to the detection of biotic and abiotic contaminant during the whole food supply chain with the accuracy and precision of laboratory methods. Micro-ELISA probes are based on affinity biomolecules, both antibodies and aptamers can be used. Some examples of applications − obtained from the project “Food Digital Monitoring”, supported by structural and National funds for Regional Development — are reported: lysozyme as food allergen and aflatoxin B1 as food contaminant.","PeriodicalId":361477,"journal":{"name":"2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)","volume":"58 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":"120949526","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}
{"title":"Compressed estimation of heart and respiratory rates from a photoplethysmogram","authors":"Chanki Park, Boreom Lee","doi":"10.1109/BIOCAS.2017.8325158","DOIUrl":"https://doi.org/10.1109/BIOCAS.2017.8325158","url":null,"abstract":"Many mobile healthcare (m-healthcare) devices, such as smart watch and smart band, use a photoplethysmogram (PPG) sensor to measure the user's heart rate (HR) and respiratory rate (RR). Since, when such devices measure PPG, it should illuminates skin using a light emitted diode, their battery life depend on sampling rate. Hence, reducing sampling rate is important problem for these m-healthcare devices which utilize a PPG sensor. Several compression schemes were introduced, but most of them were insufficient for PPG compression. In this study, to enhance the efficiency of m-healthcare devices, we introduced a new compression scheme for PPG using compressive covariance sensing. It can estimate HR and RR from compressed PPG sampled at a lower rate than the Nyquist sampling rate. Its compression and estimation performances were satisfactory, so we expect this technique will contribute to m-healthcare.","PeriodicalId":361477,"journal":{"name":"2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)","volume":"61 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":"114986532","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}
{"title":"A compact phenomenological digital neuron implementing the 20 Izhikevich behaviors","authors":"C. Frenkel, J. Legat, D. Bol","doi":"10.1109/BIOCAS.2017.8325231","DOIUrl":"https://doi.org/10.1109/BIOCAS.2017.8325231","url":null,"abstract":"The possible end of Moore's law drives a growing interest for a paradigm shift from classical von Neumann to bio-inspired computing architectures. Toward this objective, the field of neuromorphic engineering studies spike-based information processing with neuron and synapse elements. While analog circuit design allows to emulate the neuron biophysics with only a few transistors, digital circuit design shows high potential to leverage technology scaling with short design times at the expense of limited area efficiency. As recent developments in synapse implementation allow to reach densities as low as 1μm2 per synapse, it is now crucial to optimize the neuron area. In order to push digital design to compact implementations and take advantage of nanoscale CMOS technologies, we developed a phenomenological digital neuron that implements the full repertoire of the 20 Izhikevich behaviors with time constants configurable from biological-to accelerated-time. The proposed implementation occupies only 574μm2 in 28nm FDSOI CMOS.","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":"129545952","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}
{"title":"Live demonstration: Enhancing biomedical research precision, productivity and reproducibility via autonomous data acquisition and robust data curation","authors":"Yousef Gtat, A. Mason","doi":"10.1109/BIOCAS.2017.8325087","DOIUrl":"https://doi.org/10.1109/BIOCAS.2017.8325087","url":null,"abstract":"We present the eGor digital laboratory assistant platform that improves the experience of characterizing materials, devices and processes. Conceived to address challenges in biosensor and biomedical system development, eGor is a highly flexible platform for 1) automation of data acquisition with precise timing control, 2) production of results objects that are rich with information defining the measurement setup and provenance of instruments and datasets, and 3) curation of results objects and processed child datasets throughout the data life cycle. eGor packs three tools into a user-friendly browser interface: Designer to manage digital inventory of instruments and digitally capture measurement project scheme details including instrument layout and test procedures; Executer to monitor real-time measurements, search and run project schemes, and schedule future automated project runs; Analyzer to search, view and annotate results objects containing a digital description of the project scheme and the results data it generated, filter and process datasets, and trace provenance across all instruments, schemes, and datasets. These eGor services interface with a measurement workbench through the Instrument Manager tool that runs on local workbenches to collection data from and manage communication with physical instruments. Together, these eGor tools enable biomedical research with improved accuracy and precision through timing-controlled automation and with greater productivity through intuitive user-friendly interfaces capable of scheduling and running measurements without user presence. Moreover, eGor can have groundbreaking impact on research reproducibility by generating meta-rich results objects that permit exact repetition of measurements and collaborative sharing of both data and detailed project schemes.","PeriodicalId":361477,"journal":{"name":"2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)","volume":"31 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":"133659703","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}