The microsystems based visual prosthesis for optic nerve stimulation.

abstract：:The effects of pyridoxalated hemoglobin polyoxyethylene conjugate (PHP) and other hemoglobin-related substances on arterial blood pressure (ABP) and heart rate (HR) were examined. Infusion of PHP and other hemoglobin-related substances elevated ABP and increased HR. The degree of the increase in ABP and HR did not dif...

journal_title：Artificial organs

authors： Kida Y,Maeda M,Iwata S,Iwashita Y,Goto K,Nishi K

更新日期：1995-02-01 00:00:00

abstract：:Recently, there has been an increase in the use of rat models of cardiopulmonary bypass (CPB) for research purposes. Much of this work has focused on cerebral injury associated with CPB. Many of these studies employ a peripheral cannulation approach, often utilizing the caudal artery and internal or external jugular v...

journal_title：Artificial organs

authors： Gourlay T,Modine T

更新日期：2010-06-01 00:00:00

abstract：:Thousands of ventricular assist devices (VADs) currently provide circulatory support to patients worldwide, and dozens of heart pump designs for adults and pediatric patients are under various stages of development in preparation for translation to clinical use. The successful bench-to-bedside development of a VAD inv...

journal_title：Artificial organs

authors： Throckmorton AL,Patel-Raman SM,Fox CS,Bass EJ

更新日期：2016-06-01 00:00:00

abstract：:Proper wound healing can be assessed by monitoring the wound surface area. Its reduction by 10 or 50% should be achieved after 1 or 4 weeks, respectively, from the start of the applied therapy. There are various methods of wound area measurement, which differ in terms of the cost of the devices and their accuracy. Thi...

journal_title：Artificial organs

authors： Foltynski P,Ladyzynski P,Wojcicki JM

更新日期：2014-04-01 00:00:00

abstract：:Tissue-engineered heart valves constructed from a xenogeneic or allogeneic decellularized matrix might overcome the disadvantages of current heart valve substitutes. One major necessity besides effective decellularization is to preserve the biomechanical properties of the valve. Native and decellularized porcine pulmo...

journal_title：Artificial organs

authors： Seebacher G,Grasl C,Stoiber M,Rieder E,Kasimir MT,Dunkler D,Simon P,Weigel G,Schima H

更新日期：2008-01-01 00:00:00

abstract：:This article reviews the clinical, biological, radiological, and pathological procedures and their respective indications for the practical diagnosis of the following various histological patterns of renal osteodystrophy: osteitis fibrosa due to parathyroid hormone (PTH) hypersecretion: osteomalacia or rickets due to ...

journal_title：Artificial organs

authors： Fournier A,Oprisiu R,Hottelart C,Yverneau PH,Ghazali A,Atik A,Hedri H,Said S,Sechet A,Rasolombololona M,Abighanem O,Sarraj A,El Esper N,Moriniere P,Boudailliez B,Westeel PF,Achard JM,Pruna A

更新日期：1998-07-01 00:00:00

abstract：:Small-caliber decellularized xenografts with surface heparin coating are known to reduce in vivo thrombogenicity. This study was performed to examine whether heparin coating on the small-caliber decellularized xenografts would reduce macrophage infiltration and intimal hyperplasia. In a rabbit model of bilateral carot...

journal_title：Artificial organs

authors： Cai WW,Gu YJ,Wang XN,Chen CZ

更新日期：2009-06-01 00:00:00

abstract：:Left ventricular assist devices (LVADs) are increasingly being used as life-saving therapy in patients with end-stage heart failure. The changes in spirometry following LVAD implantation and subsequent unloading of the left ventricle and pulmonary circulation are unknown. In this study, we explored long-term changes i...

journal_title：Artificial organs

authors： Mohamedali B,Bhat G,Yost G,Tatooles A

更新日期：2015-12-01 00:00:00

abstract：:The thrombogenicity of membrane oxygenators as well as clotting parameters profiles, using standard human clotting tests, was analyzed in calves and pigs during 6 h perfusion. Three calves and 3 pigs were connected to extracorporeal circulation with standard heparinization. Blood samples were taken for coagulation var...

journal_title：Artificial organs

authors： Mueller XM,Tevaearai HT,Jegger D,Tucker O,von Segesser LK

更新日期：2001-07-01 00:00:00

abstract：:Tissue engineering utilizes an interdisciplinary approach to generate constructs for the treatment and repair of diseased organs. Generation of small vessels as vascular grafts or as envisioned central vessel for vascularized constructs is still a challenge. Here, the decellularization of porcine vessels by a non-dete...

journal_title：Artificial organs

authors： Eyre K,Samper E,Haverich A,Hilfiker A,Andrée B

更新日期：2020-10-01 00:00:00

abstract：:The new Advanced ventricular assist device (Advanced VAD) has many features such as improving pulsatility and preventing regurgitant flow during pump stoppage. The purpose of this study was to evaluate the effects of design modifications of the Advanced VAD on these features in vitro. Bench testing of four versions of...

journal_title：Artificial organs

authors： Miyamoto T,Byram N,Karimov JH,Adams J,Dessoffy R,Kuban BD,Gao S,Horvath DJ,Fukamachi K

更新日期：2019-10-01 00:00:00

abstract：:A totally implantable centrifugal artificial heart has been developed in which a pivot bearing supported centrifugal pump is used as a blood pump. The following have been adopted as blood contacting materials in our pump: titanium alloy (Ti-6A1-4V) for the housing and impeller, alumina ceramic (Al2O3) for the male piv...

journal_title：Artificial organs

authors： Takami Y,Yamane S,Makinouchi K,Niimi Y,Sueoka A,Nosé Y

更新日期：1998-09-01 00:00:00

abstract：:Eight patients were studied during four sessions of acetate-free biofiltration (AFBF). AFBF is a new dialysis technique with no base replacement agents in the dialysate and with the addition in postdilution mode of bicarbonate (HCO3) solution directly into the extracorporeal blood circuit. In this study the effects on...

journal_title：Artificial organs

authors： Santoro A,Ferrari G,Spongano M,Badiali F,Zucchelli P

更新日期：1989-10-01 00:00:00

abstract：:The abdominal left ventricular assist device (ALVAD) is an order of magnitude more effective than conventional intra-aortic balloon pumping (IABP) in unloading and providing circulatory support to the failing left ventricle. This is a report of a unique case which demonstrates that in the absence of pulmonary vascular...

journal_title：Artificial organs

authors： Norman JC,Dacso CC,Reul GJ,Massin EK,Klima T,Kahan BD,Keiser JT,Cooley DA

更新日期：1978-11-01 00:00:00

abstract：:Molecular Adsorbent Recirculating System (MARS) is a liver support system widely employed in the treatment of liver failure. The method is normally well tolerated. To develop a liver support system combining high efficiency and tolerability, we modified the MARS albumin circuit with the insertion of double adsorption ...

journal_title：Artificial organs

authors： Marangoni R,Bellati G,Castelli A,Romagnoli E

更新日期：2014-10-01 00:00:00

abstract：:The development of a ventricular assist device is depicted. The seven subprograms that make up the project are described briefly. Results obtained during the clinical assay showed that the new design of the input cannula working as a false auricle provides better efficiency, as well as a certain level of autoregulatio...

journal_title：Artificial organs

authors： del Cañizo JF,Antoranz JC,Desco MM,Alvarez-Valdivielso JM,Fernandez-Caleya D,López M,Garcia-Barreno P,Duarte J

更新日期：1994-07-01 00:00:00

abstract：:Fibroblast cell culture was performed to evaluate cell adhesion and cell morphology on novel hydrolyzable copolymers composed of poly(D,L-lactic acid) (PDLA) macromonomer, 2-methacryloyloxyethyl phosphorylcholine (MPC), and n-butyl methacrylate. The copolymers were used as cell culture materials for regulating the int...

journal_title：Artificial organs

authors： Watanabe J,Ishihara K

更新日期：2003-03-01 00:00:00

abstract：:Right ventricular (RV) function immediately after left ventricular assist device (LVAD) implantation is a crucial prognostic factor. RV failure is linked to increased mortality and worse outcome. A phosphodiesterase 5 inhibitor, sildenafil, was shown to decrease pulmonary vascular resistance and pulmonary artery press...

journal_title：Artificial organs

authors： Hamdan R,Mansour H,Nassar P,Saab M

更新日期：2014-11-01 00:00:00

abstract：:Plasma procoagulant activities of factors XII, XI, IX, and VIII and plasma concentrations of factor XII antigen and high molecular weight kininogen (HMK) were determined in nine men with chronic renal failure (CRF) associated with long-standing spinal cord injury (SCI) treated with hemodialysis. The results were compa...

journal_title：Artificial organs

authors： Vaziri ND,Winer RL,Toohey J,Danviriyasup K,Alikhani S,Eltorai I,Gordon S,Paule P

更新日期：1985-05-01 00:00:00

abstract：:The addition of human serum albumin (HSA) to peritoneal dialysate increases the clearance of bilirubin in rats suffering from obstructive jaundice. The acceptor properties of the fluid can be enhanced by using HSA that does not contain standard stabilizing additives and has been purified by further adsorption on activ...

journal_title：Artificial organs

authors： Sarnatskaya VV,Nikolaev VG,Osipova LA,Ivanov AI,Maslenny VN,Ivanyuk AA,Yushko LA

更新日期：1993-10-01 00:00:00

abstract：:Cell-contracted collagen gels could provide rejection-free biomaterials for tissue engineering, but their application is limited by relatively low mechanical strength. We developed a special type I collagen construct (based on embedded fibroblasts) that was formed into a gel thread by using two anchors to constrain ge...

journal_title：Artificial organs

authors： Feng Z,Ishibashi M,Nomura Y,Kitajima T,Nakamura T

更新日期：2006-11-01 00:00:00

abstract：:Doppler ultrasound is a noninvasive technique for monitoring moving objects such as flowing blood while ignoring stationary objects such as shunt tubing. A Doppler system was investigated to determine its sensitivity in detecting particulate release in blood during hemodialysis. Seven hemodialysis procedures with dogs...

journal_title：Artificial organs

authors： Badylak SF,Ash SR,Thornhill JA,Carr DJ

更新日期：1984-05-01 00:00:00

abstract：:We carried out this retrospective study to examine the magnesium status of our chronic ambulatory peritoneal dialysis (CAPD) patients dialyzed with 0.75 mmol/L (group I) or 0.50 mmol/L (group II) magnesium peritoneal dialysis solution. A total of 34 anuric patients on CAPD (age:31-72 years; duration of CAPD:7-74 month...

journal_title：Artificial organs

authors： Katopodis KP,Koliousi EL,Andrikos EK,Pappas MV,Elisaf MS,Siamopoulos KC

更新日期：2003-09-01 00:00:00

abstract：:Thirteen percent of 99 patients undergoing maintenance hemodialysis showed an increased predialysis peripheral blood eosinophil count (mean value of 828 cells/mm3, range 410-2,710). Patients with eosinophilia were predominantly male and evidenced more frequent elevation of total plasma IgE levels. Otherwise, no differ...

journal_title：Artificial organs

authors： Friedberg M,Joffe P,Nielsen B,Nielsen LP

更新日期：1987-04-01 00:00:00

abstract：:This paper presents an overview of the U.S. Food and Drug Administration's regulatory requirements for introducing medical device and diagnostic products into commercial distribution in the United States. For any specific product, the requirements vary depending upon the product's associated risks, classification, and...

journal_title：Artificial organs

authors： Morton WA

更新日期：1982-11-01 00:00:00

abstract：:As a preliminary investigation to establish a cryopreservation method suited for bioartificial livers (BALs), three-dimensional (3-D) cryopreservation experiments with fibroblasts were performed, in which the cells were firstly seeded into a porous scaffold, and the scaffold containing the cells was then cryopreserved...

journal_title：Artificial organs

authors： Miyoshi H,Ehashi T,Ohshima N,Jagawa A

更新日期：2010-07-01 00:00:00

abstract：:In a multicenter study including 5 dialysis units, blood acetate changes during 4 h dialysis sessions in 141 patients treated with a 4 mM acetate-containing bicarbonate dialysate (ABD) were evaluated and compared to the values of 114 patients using an acetate-free bicarbonate dialysate (AFD). Acetate-free bicarbonate ...

journal_title：Artificial organs

authors： Fournier G,Potier J,Thébaud HE,Majdalani G,Ton-That H,Man NK

更新日期：1998-07-01 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 rotational axis of the centrifugal pump has some associated problems such as blood destruction and sealing between the axis and pump housing. To improve upon these deficits we have developed a new type of blood pump, the magnetic rotary pump (MRP). The MRP has an original design with no rotational axis and no impe...

journal_title：Artificial organs

authors： Naganuma S,Yambe T,Sonobe T,Kobayashi S,Nitta S

更新日期：1997-07-01 00:00:00

abstract：:Magnevad II is an improved version of Magnevad I and both are fourth-generation axial flow left ventricular assist devices. A major simplification has been implemented and tested. Magnevad I used a magnetically suspended rotor requiring active axial control. Magnevad II is completely passive but otherwise similar. A s...

journal_title：Artificial organs

authors： Goldowsky M,Lafaro R,Reed G

更新日期：2005-10-01 00:00:00