The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform
B. Woodward - One of the best experts on this subject based on the ideXlab platform.
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Microcontroller-based underwater acoustic ECG Telemetry System
IEEE Transactions on Information Technology in Biomedicine, 1997Co-Authors: Robert S. H. Istepanian, B. WoodwardAbstract:This paper presents a microcontroller-based underwater acoustic Telemetry System for digital transmission of the electrocardiogram (ECG). The System is designed for the real time, through-water transmission of data representing any parameter, and it was used initially for transmitting in multiplexed format the heart rate, breathing rate and depth of a diver using self-contained underwater breathing apparatus (SCUBA). Here, it is used to monitor cardiovascular reflexes during diving and swimming. The programmable capability of the System provides an effective solution to the problem of transmitting data in the presence of multipath interference. An important feature of the paper is a comparative performance analysis of two encoding methods, Pulse Code Modulation (PCM) and Pulse Position Modulation (PPM).
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Microcontroller-based underwater acoustic ECG Telemetry System
IEEE Transactions on Information Technology in Biomedicine, 1997Co-Authors: Robert S. H. Istepanian, B. WoodwardAbstract:The paper presents a microcontroller based underwater acoustic Telemetry System for digital transmission of the electrocardiogram (ECG). The System is designed for the real time, throughwater transmission of data representing any parameter, and it was used initially for transmitting in multiplexed format the heart rate, breathing rate and depth of a diver using self contained underwater breathing apparatus (SCUBA). Here, it is used to monitor cardiovascular reflexes during diving and swimming. The programmable capability of the System provides an effective solution to the problem of transmitting data in the presence of multipath interference. An important feature of the paper is a comparative performance analysis of two encoding methods: pulse code modulation (PCM) and pulse position modulation (PPM).
Robert S. H. Istepanian - One of the best experts on this subject based on the ideXlab platform.
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Microcontroller-based underwater acoustic ECG Telemetry System
IEEE Transactions on Information Technology in Biomedicine, 1997Co-Authors: Robert S. H. Istepanian, B. WoodwardAbstract:This paper presents a microcontroller-based underwater acoustic Telemetry System for digital transmission of the electrocardiogram (ECG). The System is designed for the real time, through-water transmission of data representing any parameter, and it was used initially for transmitting in multiplexed format the heart rate, breathing rate and depth of a diver using self-contained underwater breathing apparatus (SCUBA). Here, it is used to monitor cardiovascular reflexes during diving and swimming. The programmable capability of the System provides an effective solution to the problem of transmitting data in the presence of multipath interference. An important feature of the paper is a comparative performance analysis of two encoding methods, Pulse Code Modulation (PCM) and Pulse Position Modulation (PPM).
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Microcontroller-based underwater acoustic ECG Telemetry System
IEEE Transactions on Information Technology in Biomedicine, 1997Co-Authors: Robert S. H. Istepanian, B. WoodwardAbstract:The paper presents a microcontroller based underwater acoustic Telemetry System for digital transmission of the electrocardiogram (ECG). The System is designed for the real time, throughwater transmission of data representing any parameter, and it was used initially for transmitting in multiplexed format the heart rate, breathing rate and depth of a diver using self contained underwater breathing apparatus (SCUBA). Here, it is used to monitor cardiovascular reflexes during diving and swimming. The programmable capability of the System provides an effective solution to the problem of transmitting data in the presence of multipath interference. An important feature of the paper is a comparative performance analysis of two encoding methods: pulse code modulation (PCM) and pulse position modulation (PPM).
Robert Sobot - One of the best experts on this subject based on the ideXlab platform.
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In–vivo characterization of left–ventricle pressure–volume Telemetry System in swine model
Biomedical Microdevices, 2016Co-Authors: Kyle Fricke, Filip Konecny, Alexander El-warrak, Chad Hodgson, Heather Cadieux-pitre, Tracy Hill, Robert SobotAbstract:We present in-vivo study related to the use of our implantable RF Telemetry System for pressure-volume (PV) cardiac monitoring in a animal subject. We implant a commercial MEMS PV sensor into the subject’s heart left-ventricle (LV), while the Telemetry System is implanted outside of the heart and connected to the sensor with a 7-microwires tether. The RF Telemetry System is suitable for commercial application in medium sized subjects, its total volume of 2.475cm^3 and a weight of 4.0g. Our designed System is 58 % smaller in volume, 44 % in weight and has a 55 % reduction in sampling power over the last reported research in PV Telemetry. In-vivo data was captured in both an acute and a freely moving setting over a 24 hour period. We experimentally demonstrated viability of the methodology that includes the surgical procedure and real-time monitoring of the in-vivo data in a freely moving subject. Further improvements in catheter design will improve the data quality and safety of the subject. This real–time implantable technology allows for researchers to quantify cardiac pathologies by extracting real–time pressure-volume loops, wirelessly from within freely moving subjects.
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In-vitro RF characterization of implantable Telemetry System
Analog Integrated Circuits and Signal Processing, 2014Co-Authors: Kyle Fricke, Ziyu Wang, Robert SobotAbstract:We present the discrete prototype version of our wireless Telemetry System architecture, which is suitable for custom IC implementation and intended to eventually retrieve blood pressure and volume (PV) data from small animal subjects (e.g., mice, rats). The architecture consists of four System level blocks that are stacked in $$2.475\,{\hbox{cm}}^{3}$$ 2.475 cm 3 volume and it weights 4.0 g. The current prototype’s size is well suited for commercial implementation inside medium sized animal subjects, for instance, rabbits and larger rats. Transmit power reported in this paper is tested between 0 to $$-$$ - 20 dBm by using phantom tissue model.
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Miniature implantable Telemetry System for pressure-volume cardiac monitoring
2013 IEEE Biomedical Circuits and Systems Conference (BioCAS), 2013Co-Authors: Kyle Fricke, Robert SobotAbstract:We present design architecture and the preliminary experimental results of our wireless Telemetry System for cardiac monitoring of blood pressure and volume (PV) vital signals from small animal subjects (e.g., rabbits, rats). The System architecture consists of five main modules stacked in a 3D structure that occupies 2.475cm3 volume and weights 4.01g. The collected data is intended for transmission over the short distances through the living tissue and air within the experimental setup. In the sleep mode measured power consumption is 150μW, while in the fully operational mode the average power consumption is 19.95mW.
A. Uchiyama - One of the best experts on this subject based on the ideXlab platform.
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ECG data reduction method for medical Telemetry System
Proceedings of the 22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (Cat. No.00CH37143), 2000Co-Authors: M. Kyoso, A. UchiyamaAbstract:No matter whether the data is important or not, the transmitter of a conventional medical Telemetry System sends data continuously. The ECG data reduction method we present is designed for ECG Telemetry System. The transmitter has a simple ECG analyzer which only detects abnormal waveform, and which suspend transmission while detecting normal ECG. Measurements on ECG wave detection and diagnosis have been done with the System whose processing speed is limited, because it is essential for battery driven System to save power consumption. The experimental hardware is a microprocessor based System. The software is composed of baseline drift canceller, waveform detector and ECG analyzer. Experiments have been performed on ECGs from normal subjects and on retrieved arrhythmia from data file. Under various conditions, such as resting, typewriting and walking, the results show that the abnormal waveforms were perfectly detected, and that the System has adequate performance for a built-in System.
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Development of medical Telemetry System by spread spectrum communication
Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 1996Co-Authors: M. Kyoso, A. UchiyamaAbstract:In order to transmit patients' data with high reliability in hospital, we have developed a spread spectrum medical Telemetry System. In this study, we showed characteristics of electromagnetic noise from an electric knife by experiments, and showed System performance of spread spectrum System by ECG transmission experiments. From these results, it was shown that the spread spectrum System had acceptable reliability under the interference from the electric knife.
Kyle Fricke - One of the best experts on this subject based on the ideXlab platform.
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In–vivo characterization of left–ventricle pressure–volume Telemetry System in swine model
Biomedical Microdevices, 2016Co-Authors: Kyle Fricke, Filip Konecny, Alexander El-warrak, Chad Hodgson, Heather Cadieux-pitre, Tracy Hill, Robert SobotAbstract:We present in-vivo study related to the use of our implantable RF Telemetry System for pressure-volume (PV) cardiac monitoring in a animal subject. We implant a commercial MEMS PV sensor into the subject’s heart left-ventricle (LV), while the Telemetry System is implanted outside of the heart and connected to the sensor with a 7-microwires tether. The RF Telemetry System is suitable for commercial application in medium sized subjects, its total volume of 2.475cm^3 and a weight of 4.0g. Our designed System is 58 % smaller in volume, 44 % in weight and has a 55 % reduction in sampling power over the last reported research in PV Telemetry. In-vivo data was captured in both an acute and a freely moving setting over a 24 hour period. We experimentally demonstrated viability of the methodology that includes the surgical procedure and real-time monitoring of the in-vivo data in a freely moving subject. Further improvements in catheter design will improve the data quality and safety of the subject. This real–time implantable technology allows for researchers to quantify cardiac pathologies by extracting real–time pressure-volume loops, wirelessly from within freely moving subjects.
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In-vitro RF characterization of implantable Telemetry System
Analog Integrated Circuits and Signal Processing, 2014Co-Authors: Kyle Fricke, Ziyu Wang, Robert SobotAbstract:We present the discrete prototype version of our wireless Telemetry System architecture, which is suitable for custom IC implementation and intended to eventually retrieve blood pressure and volume (PV) data from small animal subjects (e.g., mice, rats). The architecture consists of four System level blocks that are stacked in $$2.475\,{\hbox{cm}}^{3}$$ 2.475 cm 3 volume and it weights 4.0 g. The current prototype’s size is well suited for commercial implementation inside medium sized animal subjects, for instance, rabbits and larger rats. Transmit power reported in this paper is tested between 0 to $$-$$ - 20 dBm by using phantom tissue model.
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Miniature implantable Telemetry System for pressure-volume cardiac monitoring
2013 IEEE Biomedical Circuits and Systems Conference (BioCAS), 2013Co-Authors: Kyle Fricke, Robert SobotAbstract:We present design architecture and the preliminary experimental results of our wireless Telemetry System for cardiac monitoring of blood pressure and volume (PV) vital signals from small animal subjects (e.g., rabbits, rats). The System architecture consists of five main modules stacked in a 3D structure that occupies 2.475cm3 volume and weights 4.01g. The collected data is intended for transmission over the short distances through the living tissue and air within the experimental setup. In the sleep mode measured power consumption is 150μW, while in the fully operational mode the average power consumption is 19.95mW.
