Artificial heart

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An artificial heart is a mechanical device that replaces the heart. (Wikipedia.org)






Conferences related to Artificial heart

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2020 IEEE International Magnetic Conference (INTERMAG)

INTERMAG is the premier conference on all aspects of applied magnetism and provides a range of oral and poster presentations, invited talks and symposia, a tutorial session, and exhibits reviewing the latest developments in magnetism.


2019 41st Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

The conference program will consist of plenary lectures, symposia, workshops andinvitedsessions of the latest significant findings and developments in all the major fields ofbiomedical engineering.Submitted papers will be peer reviewed. Accepted high quality paperswill be presented in oral and postersessions, will appear in the Conference Proceedings and willbe indexed in PubMed/MEDLINE & IEEE Xplore


2019 IEEE 15th International Conference on Control and Automation (ICCA)

The 15th IEEE International Conference on Control and Automation (IEEE ICCA 2019) will be held Tuesday through Friday, July 16-19, 2019, in Edinburgh, Scotland. The conference is jointly organized by IEEE Control Systems Chapter, Singapore, and IEEE Control Chapter for United Kingdom and Ireland. It is technically sponsored by IEEE Control Systems Society. It aims to create a forum for scientists and practising engineers throughout the world to present the latest research findings and ideas in the areas of control and automation, and possible contributions toward sustainable development and environment preservation. The conference is featured with the Best Paper Award and the Best Student Paper Award.


2019 IEEE International Conference on Electro Information Technology (EIT)

Robotics and MechatronicsGPU ComputingIntelligent Systems and Multi-agent SystemsControl Systems and System IdentificationReconfigurable and Embedded SystemsPower Systems and Power ElectronicsSolid State, Consumer and Automotive ElectronicsADAS-Advanced Driver Assist SystemsConnected Vehicle - V2V, V2I, V2XBiomedical Applications, TelemedicineBiometrics and BioinformaticsNanotech, Micro Electromechanical SystemsWireless communication, Sensor NetworksCyber SecurityComputer Vision, Signal/Image and ProcessingDistributed Data Fusion and Data MiningCloud, Mobile, and Distributed ComputingSoftware Engineering, Middleware ArchitectureEngineering Education


2019 IEEE International Conference on Image Processing (ICIP)

The International Conference on Image Processing (ICIP), sponsored by the IEEE SignalProcessing Society, is the premier forum for the presentation of technological advances andresearch results in the fields of theoretical, experimental, and applied image and videoprocessing. ICIP 2019, the 26th in the series that has been held annually since 1994, bringstogether leading engineers and scientists in image and video processing from around the world.


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Periodicals related to Artificial heart

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Automatic Control, IEEE Transactions on

The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...


Biomedical Circuits and Systems, IEEE Transactions on

The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Control Systems Technology, IEEE Transactions on

Serves as a compendium for papers on the technological advances in control engineering and as an archival publication which will bridge the gap between theory and practice. Papers will highlight the latest knowledge, exploratory developments, and practical applications in all aspects of the technology needed to implement control systems from analysis and design through simulation and hardware.


Engineering in Medicine and Biology Magazine, IEEE

Both general and technical articles on current technologies and methods used in biomedical and clinical engineering; societal implications of medical technologies; current news items; book reviews; patent descriptions; and correspondence. Special interest departments, students, law, clinical engineering, ethics, new products, society news, historical features and government.


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Most published Xplore authors for Artificial heart

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Xplore Articles related to Artificial heart

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Artificial heart valve with NCD coating

3rd International Conference 'Novel Applications of Wide Bandgap Layers' Abstract Book (Cat. No.01EX500), 2001

Development in thin-layer diamond-like coatings is a very crucial advance in the field of improvement of biomaterial biocompatibility. Owing to their already investigated properties, diamond-like carbon (DLC) and nanocrystalline diamond (NCD) coatings deposited on implants, which are made of materials that can cause undesirable reactions in the organism, can significantly improve the parameters a spare part of the human body ...


Analysis of Current Density and Specific Absorption Rate in Biological Tissue Surrounding an Air-core Type of Transcutaneous Transformer for an Artificial Heart

2006 International Conference of the IEEE Engineering in Medicine and Biology Society, 2006

This paper reports on the specific absorption rate (SAR) and the current density analysis of biological tissue surrounding an air-core type of transcutaneous transformer for an artificial heart. The electromagnetic field in the biological tissue surrounding the transformer was analyzed by the transmission-line modeling method, and the SAR and current density as a function of frequency (200k-1 MHz) for a ...


Attempt to control an artificial heart system using sympathetic nervous signals

Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286), 1998

Changes in skin sympathetic nerve activity (SSNA), which accelerates the constriction of peripheral blood vessels, were measured microneurographically from the median nerve of a subject, and were used for controlling the driving parameters of a pneumatically-driven artificial heart (AH) system. The number of SSNA pulses per second was calculated using a pulse counter, and the driving parameters (pulse rate, positive ...


Study on lithium-ion secondary battery for implantable artificial heart

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136), 1997

In the totally implantable artificial heart system now being developed by the authors, seven lithium-ion secondary batteries connected in series are used as the backup secondary battery. In this paper are reported the results of investigations made on the charging and discharging characteristics of four kinds of lithium-ion secondary batteries using different cathode active materials and electrolytes. It is found ...


Characteristics of assist device for artificial heart using linear pulse motor

IEEE Transactions on Magnetics, 1987

A discussion is made of the performance improvement to be brought about by the adoption of a linear pulse motor (LPM) as the actuator of an assist device. The LPMs dealt with have a stator (primary member) mede of silicon steel sheets in the laminated structure. Combinations of this stator with each of three kinds of movers (secondary members) were ...


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Educational Resources on Artificial heart

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IEEE-USA E-Books

  • Artificial heart valve with NCD coating

    Development in thin-layer diamond-like coatings is a very crucial advance in the field of improvement of biomaterial biocompatibility. Owing to their already investigated properties, diamond-like carbon (DLC) and nanocrystalline diamond (NCD) coatings deposited on implants, which are made of materials that can cause undesirable reactions in the organism, can significantly improve the parameters a spare part of the human body should be characterised by. Diamond- like carbon (DLC) is attractive as a wear-resistant coating for biomedical applications due to its high hardness and low coefficient of friction, chemical inertness and smooth surface finish. One important property of both hard and soft DLC is their biocompatibility, and the potential of DLC coatings for biomedical applications has been extensively reported in the literature. In addition to biocompatibility, this potential is related to the fact that DLC is wear-resistant, smooth/low friction, and inert to chemical attack, and it forms a hermetic coating.

  • Analysis of Current Density and Specific Absorption Rate in Biological Tissue Surrounding an Air-core Type of Transcutaneous Transformer for an Artificial Heart

    This paper reports on the specific absorption rate (SAR) and the current density analysis of biological tissue surrounding an air-core type of transcutaneous transformer for an artificial heart. The electromagnetic field in the biological tissue surrounding the transformer was analyzed by the transmission-line modeling method, and the SAR and current density as a function of frequency (200k-1 MHz) for a transcutaneous transmission of 20 W were calculated. The model's biological tissue has three layers including the skin, fat and muscle. As a result, the SAR in the vicinity of the transformer is sufficiently small and the normalized SAR value, which is divided by the ICNIRP's basic restriction, is 7times10<sup>-3</sup> or less. On the contrary, the current density is slightly in excess of the ICNIRP's basic restrictions as the frequency falls and the output voltage rises. Normalized current density is from 0.2 to 1.2. In addition, the layer in which the current's density is maximized depends on the frequency, the muscle in the low frequency (&lt;700kHz) and the skin in the high frequency (&gt;700kHz). The result shows that precision analysis taking into account the biological properties is very important for developing the transcutaneous transformer for TAH

  • Attempt to control an artificial heart system using sympathetic nervous signals

    Changes in skin sympathetic nerve activity (SSNA), which accelerates the constriction of peripheral blood vessels, were measured microneurographically from the median nerve of a subject, and were used for controlling the driving parameters of a pneumatically-driven artificial heart (AH) system. The number of SSNA pulses per second was calculated using a pulse counter, and the driving parameters (pulse rate, positive pressure, and vacuum pressure) of the artificial heart system were altered in accordance with the algorithm for changes in the number of SSNA pulses by means of batch processing. After that, the driving parameters and the pump output of the AH system and the arterial pressure of the mock circulatory system which was connected with the AH pump were compared with the SSNA, digital arterial pressure, and skin blood flow of the subject. The increase/decrease in the number of SSNA pulses essentially matched the changes in digital blood pressure and skin blood flow; in such cases, it was possible to alter the AH pump output and the arterial pressure of the mock circulatory system similar to the change in the actual hemodynamic data of the subject. The authors are currently planning to utilize cardiac nerve activity instead of SSNA.

  • Study on lithium-ion secondary battery for implantable artificial heart

    In the totally implantable artificial heart system now being developed by the authors, seven lithium-ion secondary batteries connected in series are used as the backup secondary battery. In this paper are reported the results of investigations made on the charging and discharging characteristics of four kinds of lithium-ion secondary batteries using different cathode active materials and electrolytes. It is found that, of the four kinds of batteries under examination, one that uses LiNi/sub 0.8/Co/sub 0.2/O/sub 2/ as cathode active material and electrolyte B is most suitable, because with this battery the charging time is shortest and the temperature rise at the time of discharging is least. When these lithium-ion secondary batteries are used to drive a totally implantable electrohydraulic artificial heart, it is found that the system is capable of continuous operation for about an hour with a pump output flow of 7.6 L/min and a power consumption of 17.8 W.

  • Characteristics of assist device for artificial heart using linear pulse motor

    A discussion is made of the performance improvement to be brought about by the adoption of a linear pulse motor (LPM) as the actuator of an assist device. The LPMs dealt with have a stator (primary member) mede of silicon steel sheets in the laminated structure. Combinations of this stator with each of three kinds of movers (secondary members) were subjected to experimental examination for the LPM performance. The combination of the stator made of laminated silicon steel sheets and a mover made of permendur displayed the best LPM performance.

  • Periodic tracking adaptive control for multivariable systems having more outputs than inputs

    This note presents an adaptive control algorithm for multivariable systems in which the number of outputs is greater than the number of inputs. The algorithm can force the outputs to track arbitrary given reference signals periodically. This is the best tracking performance for systems lacking output function controllability. It has been shown that the tracking period is the upper bound on the controllability index of the controlled system. The proposed algorithm is applicable to multivariable systems with arbitrary interactor matrix but no knowledge of the interactor matrix is required.

  • International Contributions To Stirling Cycle Machine Technology

    The IECEC has been since 1966 the major forum for the dissemination of Stirling Cycle machine technology. Only once in the twenty-four year history of the IECEC has a paper not been presented which dealt with the Stirling. In total between 1966 and 1989 over 500 hundred papers have been published involving more than 1000 authors from 18 different countries. Interest in the Stirling has increased dramatically over the years, and shows no sign of abating. The IECECs must take much credit for this continued interest since the papers presented over the years represent the bulk of the modern literature dealing with Stirling technology. This paper is a review of this literature.

  • Thinking twice about "tissue engineering" [ethical issues]

    There is no question that organ transplantation is difficult and expensive. Screening donors for transmissible disease and accurate matching of donor organs to recipients, so that there will be the best possible blood and tissue compatibility, as well as appropriate size, is extremely difficult. Fundamental problems remain: the supply is far exceeded by the demand, the costs of the procedures involved tend pragmatically to reduce access by less well-off and disenfranchised individuals and, as a result, nagging questions of social justice remain. It is fair to state that these considerations have played a strong role in the early development of the field now known as "tissue engineering." The author recommends taking a second look at the entire concept of tissue engineering. Before one goes too far down this path, it is worthwhile to think twice; to consider the implications and ask whether there are some things that should not be done simply because they appear to be possible. Topics considered include: autoreplants, alloreplants, xenografts, gene transplants and cloning.

  • Control implementation for a balance beam with magnetic bearings

    A balance beam with magnetic bearings is modeled. A robust sliding mode controller for magnetic actuators is presented. The hardware of the real time control system is described. The proposed control scheme is implemented using a Pentium II 450 MHz computer with real time Linux for a balance beam. Its effectiveness is verified through the comparative experiment results.

  • The Skin Tunnel Transformer: A New System that Permits Both High Efficiency Transfer of Power and Telemetry of Data Through the Intact Skin

    Artificial organs which are to be chronically implanted require a means of getting power into the body from an external power source with minimum risk of infection and irritation to the skin. The skin tunnel transformer is such a device whereby high level electromagnetic energy can be transmitted through the skin with very low losses and noncritical positioning. Two versions of the transformer are shown and described, and experimental results obtained with dogs are presented. Transmission over 50 watts at better than 95 percent efficiency has been accomplished with no ill effects. The use of the transformer for simultaneous transmission of telemetry data is also discussed.



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