Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 30 for “"Oxygenator"”.
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Membrane materials for a nonthrombogenic blood oxygenator,
Thesis: M.S., Massachusetts Institute of Technology, Department of Chemical Engineering, 1972
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An analysis of gas exchange in a membrane oxygenator.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 1966
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Integrated Microfluidic Culture Media Oxygenator for Organ-on-a-Chip Applications
… fabrication, and testing of a microfluidic oxygenator chip, or "Oxychip", for providing control of oxygen concentration in MPS cell culture media. The oxygenation mechanism of the device features a serpentine fluidic channel that contacts a pneumatic pocket through a gas permeable membrane, …
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History and Technique of Operation of the Mark G.K. Gibbon Type Pump-Oxygenator
The evolution of heart surgery has been difficult and has spread over centuries. Yet only within the past twenty years have congenital abnormalities of the great vessels been successfully treated surgically. Except for traumatic lesions of the heart, significant sustained progress in the treatment …
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A low volume oxygenator for open well Liver-on-a-Chip tissue culture
… flow-through MPS platform with a low-volume oxygenator, at a total circulating volume of approximately 500 [mu]L. The oxygenator uses the interior corner of a hydrophilic spiral to constrain the circulating fluid and to create a thin fluid region, which decreases the diffusion depth relative …
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Analysis of a membrane type blood oxygenator and a ventricle type blood pump
… in vitro analysis of the Arp Hembrane Type Blood Oxygenator and a ventricle type blood pump. The system is designed for newborns suffering from Respiratory Distress Syndrome (R.D.S.), especially the 15% who are unable to be helped by the Arp Infant Respirator. The analysis included oxygen transfer …
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Use of blood oxygenator membrane units in teaching mass balances, friction factor and mass transfer analysis
… laboratory experiments with hollow fiber blood oxygenators allow integration of concepts into already full programs. This work describes three new educational experiments that have been developed to introduce students to concepts of mass balances, mass transfer and momentum transfer as applied …
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A new blood pump and oxygenator system for support of infants with neonatal respiratory distress: preliminary in vitro and in vivo evaluation
A clinical need exists for a blood oxygenator and pumping system for the support of neonates with respiratory deficiencies. Such systems now available for support of adults are not suitable for neonatal patients. In vitro evaluation of a new blood oxygenator and blood pumping system was performed. …
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Carbon dioxide transfer in membrane oxygenators and associated membranes
… dioxide production be eliminated by a membrane oxygenator operated in an extracorporeal blood circuit. In conjunction with peripheral cannulation, the oxygenator should be optimised for CO₂ removal at low blood flow rates of 1.5 ℓ/min or less for adults. An extensive literature survey revealed …
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STUDIES ON THE REACTION OF HIGH-DOSE HYDROXOCOBALAMIN AND ASCORBIC ACID WITH CARBON MONOXIDE: IMPLICATIONS FOR TREATMENT OF CARBON MONOXIDE POISONING
… circulation system with a hollow-fiber membrane oxygenator to produce carboxyhemoglobin. Using sensitive gas monitoring equipment to the gas-out port of the oxygenator we analyzed the CO and CO2 concentrations coming from the oxygenator. The mixture of hydroxocobalamin and ascorbic acid caused a …
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A monitoring and display system for a cardiopulmonary bypass loop
… of sample points entering and leaving the blood oxygenator, patient temperature, oxygenator heat exchanger water temperature and hemoglobin content are monitored and displayed. The hemoglobin content and oxygen saturation signals, input from a reflective-type hemoglobin meter and oximeter are …
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The development of a continuous blood oxygen saturation measuring and control system
… saturation at the outlet of a membrane-type oxygenator. A reflection oximeter was developed which employs the ratio of the incident light intensity at two wavelengths to obtain the continuous blood oxygen saturation measurement. The ratio of the intensities of incident light at the two …
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Zur Frage der Stofftransporteigenschaften von Oxygenatorhohlfasermembranen bezüglich der Durchlässigkeit für Fluide und Narkosegase
Microporous hollow fibre membrane oxygenators with clinically-established polypropylene (PP) or innovative polymethylpentene (PMP) membranes are used clinically for cardiopulmonary bypasses (CPB) and extracorporeal life support (ECLS). Membrane oxygenators with silicone plates may also be used. …
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Zu Entstehungsmechanismen von Plasma Leakage in mikroporösen Kapillarmembranoxygenatoren
… is a particular problem of microporous membrane oxygenators. It is described as the migration of blood plasma through the micropores into the gas compartment. In this dissertation, in-vitro-studies, wettability measurements, and electron microscope photos of microporous hollow fibres were used to …
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Validierung eines neuen Modells zum kompletten kardiopulmonalen Bypass bei der Ratte durch Überprüfung der kognitiven Leistung, des neurologischen Status und des allgemeinen Verhaltens
… bypass with a technological improved oxygenator adapted to the size of the rat.
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Tierexperimentelle Untersuchungen zu Praktikabilität und Hämokompatibilität einer miniaturisierten extrakorporalen Membranoxygenierung
… membrane oxygenation using capillary membrane oxygenators specialized centers have the possibility to provide sufficient gas exchange in severe ARDS with life-threatening hypoxemia despite optimal conservative treatment. The standard device used for ECMO is accompanied by several problems, for …
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Renal function during profound hypothermia in the dog
… incorporated in an extra-corporeal pump-oxygenator system (ef Appendix A). Progress was such that by midyear postoperative survival of experimental animals was assured. At this juncture, it was suggested that, as a member of the Renal-Metabolic Group of the Department of Medicine, I …
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The investigation of a non-invasive oximeter and the further development of an extracorporeal oximeter
… of blood entering and leaving a membrane-type oxygenator. The oximeter was redesigned to improve the transducer, power supply, analog-to-digital converter, and calibration procedure. A detailed description of the new oximeter design is presented along with data obtained from testing the new …
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OVERCOMING THE LIMITATIONS OF TISSUE ENGINEERED SCAFFOLDS FOR DENTAL ROOT REPAIR
… system via burn out of porous polypropylene oxygenator membranes allows for proper nutrient delivery to the infiltrating cells. Blackened carbon-coated scaffolds acted as a filter for the media, resulting in no nutrient delivery to the cells. The new white scaffolds did not filter the media …
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