The DeBakey ventricular assist device: current status in 1997.

abstract：:Central extracorporeal life support (ECLS) is an effective treatment method of cardiogenic shock patients with or without lung failure. However, complications like infection and bleeding are common. The classical implantation approach requires full sternotomy, mobilization of the heart, with the well-known risks of bl...

journal_title：Artificial organs

authors： Weymann A,Sabashnikov A,Patil NP,Mohite PN,Zych B,Garcia Saez D,Popov AF,Simon AR

更新日期：2015-02-01 00:00:00

abstract：:Flow visualization experiments and computational fluid dynamic (CFD) analyses were performed and the results were compared to clarify the detailed fluid dynamic characteristics for the prototype design of a centrifugal pump, namely, an implantable ventricular assist system from Sun Medical, whose hemocompatibility was...

journal_title：Artificial organs

authors： Yamane T,Miyamoto Y,Tajima K,Yamazaki K

更新日期：2004-05-01 00:00:00

abstract：:We have made an eccentric roller type total artificial heart (ERTAH). The ERTAH is a positive-displacement device comparable to a DeBakey roller pump. Its left and right outputs are determined by the size of its blood chambers, and the ratio of its left and right output is almost constant. We focused on an interatrial...

journal_title：Artificial organs

authors： Wada H,Fukunaga S,Watari M,Sakai H,Sugawara Y,Ochikubo H,Imai K,Shibamura H,Orihashi K,Sueda T,Matsuura Y

更新日期：1999-08-01 00:00:00

abstract：:Molecular biology has been moving swiftly toward clarifying the entire genome of organisms, including human. The human genome efforts that promote this transaction are characterized by the large-scale, high throughput production of data about the structure of the genome of the molecular level and its computer-assisted...

journal_title：Artificial organs

authors： Matsubara K

更新日期：1996-08-01 00:00:00

abstract：:This article describes a new powering system for implantable medical devices that could significantly increase their lifetime. The idea is based on the substitution of the usual implantable device battery for an electric accumulator (rechargeable battery), which is fed by the electric power generated by a photovoltaic...

journal_title：Artificial organs

authors： Algora C,Peña R

更新日期：2009-10-01 00:00:00

abstract：:The characteristic depressed hemodynamic state and gradually declining circulatory function in Fontan patients necessitates alternative postoperative management strategies incorporating a system level approach. In this study, the single-ventricle Fontan circulation is modeled by constructing a practical in vitro bench...

journal_title：Artificial organs

authors： Dur O,Lara M,Arnold D,Vandenberghe S,Keller BB,DeGroff C,Pekkan K

更新日期：2009-11-01 00:00:00

abstract：:Renal Solutions Allient Sorbent Hemodialysis System utilizes a two-chambered pneumatic pump (Pulsar Blood Pump, Renal Solutions, Inc., Warrendale, PA, USA) to avoid limitations associated with peristaltic pumping systems. Single-needle access is enabled by counter-pulsing the two pump chambers, thereby obviating compl...

journal_title：Artificial organs

authors： Shu F,Parks R,Maholtz J,Ash S,Antaki JF

更新日期：2009-04-01 00:00:00

abstract：:Thirty-five patients undergoing open-heart surgery are reported. Cardiac index, mean arterial pressure, oxygen consumption, lactate, pyruvate, and lactate excess in the blood were measured. An inverse correlation of arterial pressure with oxygen consumption and lactate excess was found during perfusion. Comparison of ...

journal_title：Artificial organs

authors： Osipov VP,Khodas MJ,Dementjeva II,Pjatnitskaja GKh

更新日期：1982-08-01 00:00:00

abstract：:In chronic cardiomyopathy, mechanical circulatory support (MCS) plays an increasingly important role for children as the shortage of suitable donor hearts increases waiting time on the transplant list. We report our experience with the paracorporal Berlin Heart EXCOR System (Berlin Heart AG, Berlin, Germany) used as a...

journal_title：Artificial organs

authors： Schweiger M,Schrempf J,Sereinigg M,Prenner G,Tscheliessnigg KH,Wasler A,Krumnikel J,Gamillschegg A,Knez I

更新日期：2013-08-01 00:00:00

abstract：:The major problems with existing centrifugal pumps are leakage, mechanical trauma, and thrombus formation. In consideration of these problems, a new compact centrifugal pump system was developed. The purpose of this study was to evaluate the new centrifugal pump system clinically. Ten patients underwent open heart sur...

journal_title：Artificial organs

authors： Ninomiya J,Shoji T,Tanaka S,Ikeshita M,Ochi M,Yamauchi S,Yajima T,Yamauchi H,Sugimoto T,Aizawa T

更新日期：1994-09-01 00:00:00

abstract：:The trend in neural prostheses using selective nerve stimulation for electrical stimulation therapies is headed toward single-part systems having a large number of working electrodes (WEs), each of which selectively stimulate neural tissue or record neural response (NR). The present article reviews the electrochemical...

journal_title：Artificial organs

authors： Pečlin P,Mehle A,Karpe B,Rozman J

更新日期：2015-10-01 00:00:00

abstract：:Vecuronium is a curaric agent, largely used in anesthesia. Indications as to its employ in uremic patients appear to be debated because of partial renal elimination of the drug. A 52-year-old hemodialyzed woman required transplantectomy for rejection. At awakeness after general anesthesia (induced with fentanyl, propo...

journal_title：Artificial organs

authors： Rollino C,Visetti E,Borsa S,Pignataro A,Pozzato M,Vallero A,Quarello F

更新日期：2000-05-01 00:00:00

abstract：:Ten dialysis patients were followed in a prospective study to determine the neurotoxicity of metabolites in the middle molecule (MM) molecular weight (mol wt) range of 500-200 daltons/molecule. In the absence of readily available direct serum measurements of MM concentrations, a theoretically calculated dialysis index...

journal_title：Artificial organs

authors： Milutinovic J,Babb AL,Eschbach JW,Follette WC,Graefe U,Strand MJ,Scribner BH

更新日期：1978-02-01 00:00:00

abstract：:In this study a highly biocompatible polymer membrane was prepared by surface modification. An artificial cornea was also developed for clinical applications. Silicone rubber (SR) membrane was grafted with hydrophilic monomers such as 2-hydroxyethyl methacrylate (HEMA) and acrylic acid by plasma induced grafted polyme...

journal_title：Artificial organs

authors： Hsiue GH,Lee SD,Chang PC

更新日期：1996-11-01 00:00:00

abstract：:In bioartificial pancreatic systems, isolated islets of Langerhans are protected against immune rejection by an artificial membrane, permeable to glucose and insulin, but not to immunoglobulins and lymphocytes. Some of these devices, referred to as vascular systems, are set up to be connected to a vascular site in the...

journal_title：Artificial organs

authors： Lepeintre J,Briandet H,Moussy F,Chicheportiche D,Darquy S,Rouchette J,Imbaud P,Duron JJ,Reach G

更新日期：1990-02-01 00:00:00

abstract：:Transcatheter aortic valve implantation (TAVI) has gained considerable acceptance in the past decade due to its lower risks than conventional open-heart surgery. However, the deformation and delamination of the leaflets during the crimping procedure have raised questions about the durability and long-term serviceabili...

journal_title：Artificial organs

authors： Mao J,Rassoli A,Tong Y,Rouse EN,Le-Bel G,How D,Germain L,Fatouraee N,Zhang Z,Reed RR,Guidoin R

更新日期：2019-10-01 00:00:00

abstract：:The use of electrical stimulation for denervated muscles is still considered to be a controversial issue by many rehabilitation facilities and medical professionals because prior clinical experience has shown that treating denervated muscle tissue using exponential current over a long time period constitutes an imposs...

journal_title：Artificial organs

authors： Kern H,Hofer C,Strohhofer M,Mayr W,Richter W,Stöhr H

更新日期：1999-05-01 00:00:00

abstract：:Two series of experiments were conducted to assess the potential of artificial ventricular bypass in restoring cardiac activity. One series evaluated use of a paracorporeal left ventricle in 17 calves; the other evaluated biventricular bypass in 11 calves. Module pumps with a seamless blood chamber of polyurethane wer...

journal_title：Artificial organs

authors： Tolpekin VE,Koblov LF,Kuvaev AE,Gasanov EK

更新日期：1987-02-01 00:00:00

abstract：:A pseudo-one compartment model has been proposed to describe phosphorus kinetics during hemodialysis and the immediate post-dialysis period. This model assumes that phosphorus mobilization from tissues is proportional to the difference between the pre-dialysis serum concentration (a constant) and the instantaneous ser...

journal_title：Artificial organs

authors： Leypoldt JK,Agar BU,Cheung AK,Bernardo AA

更新日期：2017-11-01 00:00:00

abstract：:A surgical method for the implantation of a mechanical right ventricular assist device which avoids resternotomy/thoracotomy and related complications at the time of explantation is presented. In order to support the failing right heart, a Dacron vascular graft was sewn to the pulmonary artery. For venous drainage, a ...

journal_title：Artificial organs

authors： Schopka S,Haneya A,Rupprecht L,Camboni D,Schmid C,Hilker M

更新日期：2012-08-01 00:00:00

abstract：:Stimulation of different spinal cord segments in humans is a widely developed clinical practice for modification of pain, altered sensation, and movement. The human lumbar cord has become a target for modification of motor control by epidural and, more recently, by transcutaneous spinal cord stimulation. Posterior col...

journal_title：Artificial organs

authors： Danner SM,Hofstoetter US,Ladenbauer J,Rattay F,Minassian K

更新日期：2011-03-01 00:00:00

abstract：:A magnetically levitated (maglev) centrifugal blood pump (CBP), intended for use as a ventricular assist device, needs to be highly durable and reliable for long-term use without any mechanical failure. Furthermore, maglev CBPs should be small enough to be implanted into patients of various size and weight. We have de...

journal_title：Artificial organs

authors： Asama J,Shinshi T,Hoshi H,Takatani S,Shimokohbe A

更新日期：2006-03-01 00:00:00

abstract：:Bubble blood oxygenators equipped with baffles of various types in the oxygenating column were studied. The rate of hemolysis, the volumetric coefficient for oxygen absorption into blood, and the fractional gas holdup were found to be affected mainly by the superficial gas velocity. When compared with the conventional...

journal_title：Artificial organs

authors： Ohshima N,Yoshido F

更新日期：1979-05-01 00:00:00

abstract：:Cardiomyoplasty has been proposed as an alternative surgical treatment for congestive heart failure. The girdling effect of the muscle wrap is believed to reduce diastolic wall stress. We tested the hypothesis that nonstimulated or passive cardiomyoplasty (CDM) would reduce hemodynamic deficits in rats with experiment...

journal_title：Artificial organs

authors： De Angelis K,Leirner AA,Irigoyen MC,Cestari IA

更新日期：2001-11-01 00:00:00

abstract：:This study evaluates the effect of poly(L-lactic acid) (PLLA) and poly(hydroxybutyrate-cohydroxyvalerate) (PHBV) bioabsorbable polymers and their blends on the induction of alteration of cell growth pattern in vitro. Vero cells were cultured on PLLA, PHBV, and different blends (100/0, 60/40, 50/50, 40/60, and 0/100). ...

journal_title：Artificial organs

authors： Santos AR Jr,Ferreira BM,Duek EA,Dolder H,Wada RS,Wada ML

更新日期：2004-04-01 00:00:00

abstract：:Oxidative stress is crucial in red blood cell (RBC) damage induced by activated neutrophils in in vitro experiments. The aim of the study was to evaluate whether the bioincompatibility phenomena occurring during hemodialysis (HD) (where neutrophil activation with increased free radical production is well documented) m...

journal_title：Artificial organs

authors： Lucchi L,Bergamini S,Botti B,Rapanà R,Ciuffreda A,Ruggiero P,Ballestri M,Tomasi A,Albertazzi A

更新日期：2000-01-01 00:00:00

abstract：:A galactosamine-induced fulminant hepatic failure (FHF) rat model was used to study the effects of homologous cross-circulation and in situ liver perfusion. Cross-circulation with homologous donors did not significantly improve the survival time or recovery rate of grade II hepatic coma rats. Homologous in situ liver ...

journal_title：Artificial organs

authors： Mohsini K,Lister C,Chang TM

更新日期：1980-08-01 00:00:00

abstract：:The effect of age on the calcification of biomaterials was studied by the subcutaneous implantation of poly(hydroxyethyl methacrylate) hydrogel in rats. The hydrogel sheets were implanted in rats 6, 12, 24, and 52 weeks (1 year) of age. The retrieved implants were compared and the percentage weight increase by mineral...

journal_title：Artificial organs

authors： Imai Y

更新日期：1985-08-01 00:00:00

abstract：:In a calf model, 3 standard and 3 heparin coated intraaortic balloons (IAB) were inserted and left deflated in the descending aorta during 20 min to simulate balloon rupture. At the end of the experiment, the IAB were examined, and 3 samples of each were collected for scanning electron microscopy (SEM) analysis. None ...

journal_title：Artificial organs

authors： Mueller XM,Tevaearai HT,Hayoz D,von Segesser LK

更新日期：1999-02-01 00:00:00

abstract：:Cybernetics-based concepts can allow for complete independence for paralyzed individuals, including sensory motor recovery. Spinal cord injuries are responsible for a huge stress on health and a financial burden to society. This article focuses on novel procedures such as functional diagnosis for paraplegics and tetra...

journal_title：Artificial organs

authors： Varoto R,Cliquet A Jr

更新日期：2015-10-01 00:00:00