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Tesi sul tema "Heart Artificial"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 1 agosto 2024

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1

Nishta, B. V. "Artificial heart." Thesis, Сумський державний університет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/35027.

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Abstract (sommario):

An artificial heart is a device that replaces the heart. Artificial hearts are typically used to bridge the time to heart transplantation, or to permanently replace the heart in case heart transplantation is impossible. Although other similar inventions preceded it are going back to the late 1940s, the first artificial heart to be successfully implanted in a human was the Jarvik-7, designed by Robert Jarvik and implemented in 1982. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35027

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2

Westaby, Stephen. "Towards a realistic artificial heart." Thesis, University of Strathclyde, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248952.

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3

MICCIOLO, MATTEO. "ASSISTENZE MECCANICHE AL CIRCOLO: PADUA HEART PROJECT A TOTAL ARTIFICIAL HEART." Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3423929.

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Background While the prevalence of heart failure (HF) in Europe and the USA has increased constantly in the last decades up to 12 million patients, we are still missing available, effective therapeutic options for advanced HF refractory to medical management, accounting for 5% of the total HF patient population. In fact, cardiac transplantation remains the primary option for a select group of end-stage HF patients but it is strongly limited due to the shortage of donor organs. The research in the field of mechanical devices to support or substitute the pumping function of failing heart is th

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4

Ranawake, Manoja, and n/a. "Development of the artificial heart for serial production." University of Canberra. Industrial Design, 1995. http://erl.canberra.edu.au./public/adt-AUC20061113.151545.

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Heart disease is the principal cause of death in most industrialised countries. In the U.S.A. for example, 2.3 million individuals suffer from chronic heart failure, with an annual increase in numbers of 17%. It is estimated that 17,000 to 35,000 of them per year will die from this disease if they are not given either a heart transplant or an artificial heart. Unfortunately, the numbers of heart donors cannot meet the demand for transplantation, and, at present, the artificial heart is a prohibitively expensive alternative. The total artificial heart (TAH) intended for the total replacement of

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5

Menon, Vinay. "Fuzzy logic controller for an artificial heart." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq32405.pdf.

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6

Hui, Andrew J. "Hydrogel-based artificial heart valve stent material." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0018/MQ58005.pdf.

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7

Alsalamah, Mashail. "Heart diseases diagnosis using artificial neural networks." Thesis, Coventry University, 2017. http://curve.coventry.ac.uk/open/items/a9564d2b-df62-4573-8888-cabdbbdcd4e0/1.

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Information technology has virtually altered every aspect of human life in the present era. The application of informatics in the health sector is rapidly gaining prominence and the benefits of this innovative paradigm are being realized across the globe. This evolution produced large number of patients’ data that can be employed by computer technologies and machine learning techniques, and turned into useful information and knowledge. This data can be used to develop expert systems to help in diagnosing some life-threating diseases such as heart diseases, with less cost, processing time and i

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8

Barsanti, Stephen. "Observations on the mechanical behaviour of polyurethane heart valves." Thesis, University of the West of Scotland, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265928.

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9

Nugent, Allen Harold Biomedical Engineering UNSW. "Fluid dynamical investigation of a ventricular assist device." Awarded by:University of New South Wales. Biomedical Engineering, 2005. http://handle.unsw.edu.au/1959.4/35035.

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The Spiral Vortex (SV) ventricular assist device (VAD) was investigated by 2-component laser Doppler anemometry (LDA) while pumping a refractive index-matched blood analogue fluid. The VAD was operated under physiological conditions corresponding to 75% assist (4 litres/minute) or weaning from assist (2 litres/minute). Data were sampled on a 5-mm grid throughout most of the interior of the blood chamber, using two orthogonal LDA configurations from which 3D velocity data were synthesised. Data were subjected to statistical analysis of quasistatic time intervals and approximation by Fourier se

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10

Sedighian, Pouye. "Pediatric heart sound segmentation." Thesis, California State University, Long Beach, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1526952.

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<p> Recent advances in technology have facilitated the prospect of automatic cardiac auscultation by using digital stethoscopes. This in turn creates the need for development of algorithms capable of automatic segmentation of the heart sound. Pediatric heart sound segmentation is a challenging task due to various factors including the significant influence of respiration on the heart sound. This project studies the application of homomorphic filtering and Hidden Markov Model for the purpose of pediatric heart sound segmentation. The efficacy of the proposed method is evaluated on a publicly av

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11

Collin, Sophie. "Preoperative planning and simulation for artificial heart implantation surgery." Thesis, Rennes 1, 2018. http://www.theses.fr/2018REN1S025/document.

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L'utilisation d'Assistance Circulatoire Mécanique (ACM) augmente dans le cas d'insuffisance cardiaque terminale ne répondant pas aux traitements médicaux. Dans ce contexte nous avons: 1) présenté une vue d'ensemble des problématiques cliniques, 2) élaboré une nouvelle approche de planification assistée par ordinateur pour l'implantation d'ACM, 3) implémenté un modèle CFD pour comprendre l'hémodynamique ventriculaire induite par la canule apicale. Afin de diminuer les complications, des critères quantitatifs optimisant la décharge ventriculaire pourraient être déterminés par CFD. La planificati

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12

Isayeva, N. "The artificial heart is the step in the future." Thesis, Sumy State University, 2017. http://essuir.sumdu.edu.ua/handle/123456789/62811.

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Nowadays the problem of heart diseases is actual and current. Speaking about our country the situation is even worse than all over the world. Since 1991 the amount of cardiovascular system pathologies has been increasing every year. It`s a pity, but there are many young people among patients of the cardiac centres and hospitals.

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13

Watson, Stuart Kent. "Carbon deposition for artificial heart valves using liquid reagent CVD." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/16908.

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14

Yeh, Han Hung. "Computational analysis of fluid structure interaction in artificial heart valves." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44921.

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The development of heart valve stenosis and sclerosis can lead to the development of fatal complications such as congestive heart failure. Therefore, severe valve stenosis requires a surgical operation with artificial heart valve replacement. Given that the geometrical differences between artificial valves would significantly influence hemodynamic performance around the implanted valve, additional knowledge for the interactions between blood flow and the artificial valve is necessary. Therefore, in order to proceed, this study proposes an advanced computational fluid dynamics (CFD) simulation

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15

Davies, P. "Artificial cardiac pacing stimulation thresholds in the in vitro rabbit heart." Thesis, Coventry University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383671.

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16

Forsythe, R. N. "A partitioned approach to fluid-structure interaction for artificial heart valves." Thesis, Queen's University Belfast, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438630.

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17

Dal, Sasso Eleonora. "Towards an increased biocompatibility in total heart replacements: a new hybrid membrane for artificial blood pumps and the whole bioengineered heart." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3426692.

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Abstract (sommario):

The only definitive treatment currently used for end-stage heart failure (HF) is cardiac transplantation. However, the procedure is limited by organ shortage and the side-effects of life-long immunosuppression. The need for new therapeutic strategies paved the way for the development of mechanical circulatory supports (e.g., total artificial hearts, TAHs) and the whole bioengineered heart. Although the two approaches may appear to be in conflict, TAHs are intended for short- to middle-term applications and can be developed and clinically applied relatively faster; the bioengineered heart appro

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18

Braunschweig, Frieder. "Implantable devices in heart failure : studies on biventricular pacing and continuous hemodynamic monitoring /." Stockholm, 2002. http://diss.kib.ki.se/2002/91-7349-345-7/.

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19

Iborra, Egea Oriol. "Novel approaches towards precision medicine in acute and chronic heart failure." Doctoral thesis, Universitat Autònoma de Barcelona, 2019. http://hdl.handle.net/10803/669734.

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L’infart de miocardi (IM) és causat per una aturada sobtada del flux de sang que provoca isquèmia local al cor i desencadena un remodelat patològic, que es pot desenvolupar en insuficiència cardíaca (IC). Tot i que pot presentar-se com un esdeveniment estàtic, aquest és un procés complex i dinàmic. En aquesta tesi, es va valorar la IC considerant tot l'espectre de la malaltia. A més, estudis recents donen suport a la idea que processos biològics específics probablement estiguin influïts pel context biològic (p. ex: un teixit específic o una determinada malaltia). Aquesta aproximació constantm

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20

Conlon, Martin J. "Design and evaluation of a neural network-based controller for an artificial heart." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0015/MQ57723.pdf.

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21

Curtis, Corinna Briony Anne. "Flow-related clot deposition around artificial heart valves and its analysis by ultrasound." Thesis, University of Edinburgh, 2001. http://hdl.handle.net/1842/13535.

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The principle objectives of this study were to investigate deposition around test objects of a more complex geometry than bodies of revolution, using ultrasound, whilst over coming some of the problems previously encountered with ultrasonic imaging. Development of a new deaeration system reduced the number of bubbles (which attenuate ultrasound) in the milk flow to a satisfactory level, subsequently improving the quality of the ultrasound images. Further changes included the selection of a new rennet due to the unavailability of the original rennet used in the milk studies. Several rennets wer

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22

Hind, Andrew Kenneth. "An investigation into the flow fields around bluff bodies and artificial heart valves." Thesis, University of Edinburgh, 1997. http://hdl.handle.net/1842/15029.

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A milk analogue for clotting blood was developed by Lewis. This was then used by Christy, and subsequently Marosek, to investigate the clot deposited in the region of a series of bluff bodies and heart valves in both steady and pulsatile flows. Bodies of revolution, such as a teardrop, were used to simplify the flow structures present in the flow, making the relation of flow features to the deposition of clot more amenable to analysis. Christy concluded that stasis was a necessary but not sufficient condition for thrombus deposition. A quantitative flow visualisation technique known as particl

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23

Conlon, Martin J. (Martin John) Carleton University Dissertation Engineering Mechanical and Aerospace. "Design and evaluation of a neural network-based controller for an artificial heart." Ottawa, 2000.

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24

Muslmani, Bassam Mohamed 1965. "The use of high resolution phonocardiography in the assessment of artificial heart valves." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278220.

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Abstract (sommario):

A non-invasive research tool to assess mechanical prosthetic heart valves using high resolution phonocardiography and signal processing was developed. The theory and motivation responsible for this system along with the actual hardware design and software coding will be presented. Studies employing this experimental system on patients with mechanical heart valves followed by the Sections of Cardiothoracic Surgery and Pediatric Cardiology at University Medical Center have revealed that the leaflets of normally functioning bileaflet mechanical heart valves do not close synchronously. The degree

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25

Greatrex, Nicholas Anthony. "Design of physiological control and magnetic levitation systems for a total artificial heart." Thesis, Queensland University of Technology, 2014. https://eprints.qut.edu.au/65642/1/Nicholas_Greatrex_Thesis.pdf.

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Total Artificial Hearts are mechanical pumps which can be used to replace the failing natural heart. This novel study developed a means of controlling a new design of pump to reproduce physiological flow bringing closer the realisation of a practical artificial heart. Using a mathematical model of the device, an optimisation algorithm was used to determine the best configuration for the magnetic levitation system of the pump. The prototype device was constructed and tested in a mock circulation loop. A physiological controller was designed to replicate the Frank-Starling like balancing beha

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26

Jones, Mark I. "Haemocompatibility and charactersation of candidate coatings for heart valve prosthesis." Thesis, University of Nottingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301695.

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Abstract (sommario):

Prosthetic cardiac valve surgery is a well-established technique, but the search continues for engineering materials with sup..e rior mechanical characteristics in order to extend the service life of the implant. The introduction of pyrolytic carbon was seen as a breakthrough in the development of wear resistant, non-thrombogenic materials for such applications. However, thrombo-embolic phenomena and the need for anticoagulation treatment following valve insertion remain the main problems associated with artificial materials in this application. The work carried out in this research has studie

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27

Henker, Richard. "PNEUMATIC ARTIFICIAL HEART DRIVER PARAMETER EFFECTS ON THE RATE OF PRESSURE CHANGE ((+) DP/DT MAX)." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276466.

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The aim of the research was to investigate the effects of three parameters of the artificial heart on the (+) dP/dt max. The study was conducted using a mock circulation which was connected to an artificial heart. The data were collected using the COMDU software developed for the computer which monitors the artificial heart. Stepwise regression analysis was utilized to test the three hypotheses. Two of the null hypotheses for the study could not be rejected, as the independent variable did not significantly affect (+) dP/dt max. Although the third hypothesis was accepted, the results were not

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28

Swarbrick, Martin Damian. "Acoustic diagnosis of heart defects using time-domain signal processing and artificial neural networks." Thesis, University of Hull, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273661.

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29

Vonesh, Michael John 1964. "A non-invasive method of estimating pulmonary artery pressure in the total artificial heart." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276785.

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A non-invasive, in vitro method of estimating mean pulmonary artery pressure (PAP) was developed. This information was obtained by establishing a relationship between the pneumatic right drive pressure (RDP) and PAP waveforms. The RDP-PAP relationship was formalized into a series of multiple-linear regression equations for TAH cardiac cycles of known fill volume (FV). Correlation of computed estimates of PAP to actual measurements showed that these equations were greater than 92% accurate within 1.84 mmHg. In addition, while the RDP-PAP relationships were wholly dependent on FV, it was shown t

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30

Janney, Joseph T. "The design, development and in vitro testing of an electric motor driven artificial heart." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/104538.

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31

Canada, Justin M. "A Comparison of Maximal Exercise Responses among Patients with a Total Artificial Heart, a Left Ventricular Assist Device, or Advanced Heart Failure." VCU Scholars Compass, 2012. http://scholarscompass.vcu.edu/etd/340.

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The purpose of this study was to evaluate graded exercise responses to treadmill exercise in patients with a total artificial heat (SynCardia, Tucson, AZ). Additionally, this study sought to compare the exercise response in total artificial heart (TAH) patients to both advanced heart failure (HF) patients on medical management only and HeartMate II (Thoratec Corp., Pleasanton, CA) left‐ventricular assist device (HMII) patients. For patients with biventricular heart failure the TAH is a viable option to bridge patients until transplant becomes available. Its demonstrated improvement in mortalit

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Lima, Jose Marco Nogueira. "Efeito hemodinamico da sincronização eletrica biventricular prolongada no pos-operatorio de revascularização do miocardio." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/310236.

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Orientador: Kleber Gomes Franchini<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas<br>Made available in DSpace on 2018-08-06T19:09:29Z (GMT). No. of bitstreams: 1 Lima_JoseMarcoNogueira_D.pdf: 1108641 bytes, checksum: 52decb99b4c7eb40cf6e3df4bdda5d47 (MD5) Previous issue date: 2006<br>Resumo: O presente estudo tem como objetivo avaliar a influência da estimulação biventricular prolongada no pós-operatório de revascularização miocárdica em pacientes portadores de disfunção ventricular esquerda, FE = 40%, associada à duração do QRS menor ou igual a 130ms.

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33

Claiborne, Thomas Edward III. "Development and evaluation of a catheter deliverable artificial aortic heart valve prosthesis and delivery system." FIU Digital Commons, 2008. http://digitalcommons.fiu.edu/etd/2371.

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Currently, malfunctioning heart valves are replaced via highly invasive and costly open-heart procedures. A new alternative approach is a catheter deliverable or percutaneous heart valve. Current PHV prototypes utilize fixed animal tissue as valves. This research investigated the feasibility of an artificial PHV and the development of a delivery system. A left hea11 simulator and a tensile tester were used to characterize the hydrodynamics and mechanics of a novel artificial PHV. Test results showed equal or better in vitro hydrodynamic performance when compared to a St. Jude mechanical valve

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Davis, Carol Elizabeth 1964. "Non-invasive detection of full-filling in the symbion artificial heart and ventricular assist devices." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/278427.

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The anatomy and physiology of the human heart, the historical development of heart transplantation and mechanical assistance, and total artificial heart and ventricular assist device systems are discussed. The focus of the investigation is on the detection of waveform indicators corresponding to full-filling of the artificial heart and ventricular assist device chambers. The developed software monitors the drive pressure waveform produced by the circulatory assist system until a full-fill indicator is detected. The event is verified by the detection of a corresponding indication during the sam

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Plewa, Luke Joseph. "Sudden Cardiac Arrest Prediction through Heart Rate Variability Analysis." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1449.

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The increase in popularity for wearable technologies (see: Apple Watch and Microsoft Band) has opened the door for an Internet of Things solution to healthcare. One of the most prevalent healthcare problems today is the poor survival rate of out-of hospital sudden cardiac arrests (9.5% on 360,000 cases in the USA in 2013). It has been proven that heart rate derived features can give an early indicator of sudden cardiac arrest, and that providing an early warning has the potential to save many lives. Many of these new wearable devices are capable of providing this warning through their heart ra

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Botha, J. S. F. "Autonomous auscultation of the human heart." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4239.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: The research presented in this thesis serves to provide a tool to autonomously screen for cardiovascular disease in the rural areas of Africa. Vital information thus obtained from patients can be communicated to advanced medical centres by Telemedicine. Cardiovascular disease is then detected in its initial stages, which is essential to its effective treatment. The system developed in this study uses recorded heart sounds and electrocardiogram signals to distinguish between nor

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37

Lawlor, Mary Ann C. "Predictors of Health Service Use in Persons with Heart Failure." Case Western Reserve University School of Graduate Studies / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1619702345236178.

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Moore, Ryan A. M. D. "Virtual Implantation of Mechanical Circulatory Support Devices." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1479476350842492.

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Crosby, Jessica Renee. "Expanding the Performance Envelope of the Total Artificial Heart: Physiological Characterization, Development of a Heart Failure Model, And Evaluation Tool for Mechanical Circulatory Support Devices." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/344221.

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Heart failure (HF) affects an estimated 5.8 million Americans, accounting for near 250,000 deaths each year. With shortages in available donor hearts, mechanical circulatory support (MCS) has emerged as a life-saving treatment for advanced stage HF. With growth in MCS use, a clinical and developmental need has emerged for a standard characterization and evaluation platform that may be utilized for inter-device comparison and system training. The goal of this research was to harness SynCardia's total artificial heart (TAH) to meet this need. We first sought to characterize the TAH in modern phy

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Yoo, Doo-Sung. "Organ-machine Hybrids (Artificial Animals)." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1281418915.

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Assunção, Luís Pedro Santos de. "Heart rate estimation using video in psychology experiments." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/18459.

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Mestrado em Engenharia de Computadores e Telemática<br>Heart rate is a relevant physiological marker used in several areas, namely psychology, as a measure of the anxiety and stress among other states. Typically, the heart rate is calculated from ECG that implies using dedicated equipment with electrodes placed on the human subject which can be considered invasive in many situations i.e. not comfortable or humanly suitable. With the advances in computer vision several works proposed methods to estimate the heart rate from video capturing skin patches of the subjects (e.g. for head, overall fa

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Veiga, Viviane Cordeiro 1976. "Avaliação ecocardiografica da terapia de ressincronização cardiaca : dois anos de seguimento." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/311904.

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Orientador: Salomon Soriano Ordinola Rojas<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas<br>Made available in DSpace on 2018-08-12T15:05:14Z (GMT). No. of bitstreams: 1 Veiga_VivianeCordeiro_M.pdf: 4383215 bytes, checksum: 4ac235c87c9173ad91395fd7c6466208 (MD5) Previous issue date: 2008<br>Resumo: Introdução A terapia de ressincronização cardíaca é uma opção efetiva nos pacientes com insuficiência cardíaca avançada. No entanto, 20 a 30% dos pacientes não apresentam benefícios à esta terapêutica. Critérios clínicos, eletrocardiográficos e ecocard

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Silva, Bruno Utiyama da. "Avaliação e aperfeiçoamento de uma bomba de sangue centrífuga implantável ápice ventricular para assistência cardíaca." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264976.

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Orientadores: Carlos Kenichi Suzuki, Aron José Pazin de Andrade<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-21T07:29:25Z (GMT). No. of bitstreams: 1 Silva_BrunoUtiyamada_M.pdf: 3089036 bytes, checksum: 01d1bb268591e2388a9bb34046fbd188 (MD5) Previous issue date: 2012<br>Resumo: Neste trabalho, foi realizado um estudo experimental de uma Bomba de Sangue Ápice Ventricular (BSAV) para sua análise como um dispositivo de assistência ventricular. Este estudo faz parte do desenvolvimento desta bomba e serviu c

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Stenberg, Mattias. "Concept design and In Vitro evaluation of a novel dynamic displacement Ventricular Assist Device." Licentiate thesis, Stockholm : KTH Technology and Health, 2006. http://www.diva-portal.org/kth/theses/abstract.xsql?dbid=3991.

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Willson, Grant Neville. "Nocturnal non-invasive ventilation for the treatment of Cheyne-Stokes respiration in chronic heart failure." Thesis, The University of Sydney, 2004. https://hdl.handle.net/2123/27912.

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This thesis has investigated the efficacy of non-invasive ventilation in subjects with congestive heart failure (CHF) and Cheyne—Stokes respiration (CSR). The effect of this therapy on sleep, breathing and haemodynamic variables has been examined. This thesis also describes the morphology and magnitude of the blood pressure (BP) and heart rate (HR) oscillations associated with CSR and elucidates contributing factors to the changes observed. Chapter 1 - literature review - outlines the presentation and treatment of CSR in patients with CHF. Cheyne-Stokes respiration is described with p

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Bock, Eduardo Guy Perpétuo. "Projeto, construção e testes de um dispositivo de assistência ventricular = bomba de sangue centrífuga implantável." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263298.

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Orientadores: Antonio Celso Fonseca de Arruda, Aron José Pazin de Andrade<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-17T22:34:18Z (GMT). No. of bitstreams: 1 Bock_EduardoGuyPerpetuo_D.pdf: 13813984 bytes, checksum: 77d56e60875323b49182504cf741b892 (MD5) Previous issue date: 2011<br>Resumo: Uma Bomba de Sangue Centrífuga Implantável (BSCI) foi projetada e construída para assistência ventricular de longa duração no tratamento de pacientes portadores de doenças cardiovasculares. A proposta do projeto foi desen

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Choksi, Tejas Dilipkumar. "Modification of a novel polymer with potential use in artificial heart valves : effects on hemocompatibility and mechanical properties." FIU Digital Commons, 2004. http://digitalcommons.fiu.edu/etd/2345.

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Platelet mediated thrombosis has been a major source of mortality and morbidity in cardiovascular device patients as the device surface upon contact with blood induces surface thrombosis. Two specific objectives of this thesis are: 1) Identify the effect of phospholipid modification on Quatromer and 2) Identify the most effective modification technique that will inhibit the surface induced thrombosis and enhance the long-term blood compatibility of Quatromer. Six different phospholipids were grafted in the Quatromer and the role of each of the modified substrates was evaluated in terms of mech

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DeCook, Katrina Jolene. "System and Method for Comparison and Training of Mechanical Circulatory Support Devices: A Patient Independent Platform Using the Total Artificial Heart and Donovan Mock Circulation System." Thesis, The University of Arizona, 2015. http://hdl.handle.net/10150/556703.

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Mechanical circulatory support (MCS) is a viable therapy for end stage heart failure. However, despite clinical success, the ability to compare MCS devices in vitro and perform training scenarios is extremely limited. Comparative studies are limited as different devices cannot be interchanged in a patient due to the surgical nature of implant. Further, training and failure scenarios cannot be performed on patients with devices as this would subject a patient to a failure mode. A need exists for a readily available mock system that can perform comparative testing and training scenarios with MCS

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Natale, James. "A Strategy for Reducing Congestive Heart Failure Readmissions Through the Use of Interventions Targeted by Machine Learning." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1428233380.

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Souza, Fernando Sergio Oliva de. "Aspectos tecnicos da cateterização do seio coronariano baseado no componente atrial do eletrograma intracavitario durante o procedimento de implante de marcapasso biventricular." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/311523.

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Orientador: Orlando Petrucci Junior<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas<br>Made available in DSpace on 2018-08-11T10:51:42Z (GMT). No. of bitstreams: 1 Souza_FernandoSergioOlivade_D.pdf: 1025341 bytes, checksum: 15ba5e4c6177129ac03b697eb1f59cb9 (MD5) Previous issue date: 2008<br>Resumo: A estimulação elétrica biventricular apresenta bons resultados no tratamento da insuficiência cardíaca congestiva refratária em portadores de cardiomiopatia dilatada com distúrbios de condução interventricular. OBJETIVO: Apresentar proposição utilizando técni

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