Pump power loss and heat generation in a pivot bearing-supported Gyro centrifugal pump (C1E3).

abstract：:To elucidate the precise mechanism of carpal tunnel syndrome (CTS), serum hyaluronic acid (HA), interleukin-1 beta (IL-1 beta), interleukin-6 (IL-6), and tumor necrosis factor-alpha (TNF-alpha) were measured in 71 chronic hemodialysis patients with or without CTS and/or shoulder pain. Patients were divided into two gr...

journal_title：Artificial organs

authors： Takasu S,Takatsu S,Kunitomo K,Kokumai Y

更新日期：1994-06-01 00:00:00

abstract：:The undulation pump total artificial heart (UPTAH) is a small implantable total artificial heart. As the UPTAH generates outflow and inflow at the same time, control of the UPTAH is very difficult. Therefore suitable control methods specifically for the UPTAH should be established. Various motor control, left-right fl...

journal_title：Artificial organs

authors： Saito I,Chinzei T,Abe Y,Ishimaru M,Mochizuki S,Ono T,Isoyama T,Iwasaki K,Kouno A,Baba A,Ozeki T,Takiura K,Tohyama T,Nakagawa H,Imachi K

更新日期：2003-01-01 00:00:00

abstract：:Microcapsules containing insulin crystals or islets of Langerhans were made by extruding a mixture of insulin crystals or islets and sodium alginate into a calcium chloride solution, and then coating it with poly-l-lysine. When these microcapsules were incubated at 37 degrees C, insulin could be detected readily in th...

journal_title：Artificial organs

authors： Leung YF,O'Shea GM,Goosen MF,Sun AM

更新日期：1983-05-01 00:00:00

abstract：:Insufficient unloading of the left ventricle with blood stagnation is a main cause of unsuccessful left ventricular (LV) recovery during percutaneous cardiopulmonary support (PCPS). The purpose of this investigation was to evaluate the effectiveness of transaortic catheter venting (TACV) for LV unloading. Six adult mo...

journal_title：Artificial organs

authors： Shibuya M,Kitamura M,Kurihara H,Kikuchi C,Endo M,Koyanagi H

更新日期：1997-07-01 00:00:00

abstract：:Hemolysis is one of the most important performance parameters of blood pumps. However, comparative in vitro evaluation of the reported hemolysis effect is difficult owing to the lack of uniformity in the test methods used. Currently, three types of formulas are generally accepted and widely used for the index of hemol...

journal_title：Artificial organs

authors： Naito K,Mizuguchi K,Nosé Y

更新日期：1994-01-01 00:00:00

abstract：:We have studied the cardiac beat synchronization (CBS) control for a rotary blood pump (RBP) and revealed that it can promote pulsatility and reduce cardiac load. Besides, patients with LVAD support sometimes suffer from aortic and mitral regurgitation (AR and MR). A control method for the RBP should be validated in w...

journal_title：Artificial organs

authors： Ogawa D,Kobayashi S,Yamazaki K,Motomura T,Nishimura T,Shimamura J,Tsukiya T,Mizuno T,Takewa Y,Tatsumi E,Nishinaka T

更新日期：2020-08-19 00:00:00

abstract：:To avoid using sensors with low biocompatibility and low durability in implantable total artificial heart (TAH) systems, the authors previously proposed a new method for estimating instantaneous values of flow rate and pressure head on the basis of voltage, current, and rotational speed in a motor driven centrifugal p...

journal_title：Artificial organs

authors： Tanaka A,Yoshizawa M,Abe K,Takeda H,Yambe T,Nitta S

更新日期：2003-01-01 00:00:00

abstract：:Twelve patients, 8 male and 4 female, aged from 26 to 70 years were studied. They were on hemodialysis (HD) 4 h three times weekly with cuprophan hollow fiber dialyzers (Gambro 120M) and dialysate containing 35 mEq/L of acetate. The study compares two random HD sessions on each patient. Sixty minutes prior to one rand...

journal_title：Artificial organs

authors： Grekas D,Alivanis P,Karamouzis M,Pyrpasopoulos M,Tourkantonis A

更新日期：1989-10-01 00:00:00

abstract：:To remove anti-DNA antibodies from a patient's plasma with systemic lupus erythematosus (SLE), a DNA immunoadsorbent was developed by covalently coupling calf thymus DNA on activated Sepharose 4FF. Sepharose 4FF was activated with 5-norbornene-2,3-dicarboximido carbonochloridate (Cl-CO-ONB), which was proven to be a v...

journal_title：Artificial organs

authors： Kong DL,Schuett W,Boeden HF,Kunkel S,Holtz M,Matic G,Yamada R,Yu YT,Klinkmann H

更新日期：2000-11-01 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：: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：:The aim of this study was to compare patients with severe biventricular heart failure who underwent Berlin Heart Excor implantation with (cardiogenic shock [CS] status) or without the need for preoperative extracorporeal life support (ECLS) as a bridge to long-term device. A total of 40 consecutive patients with sever...

journal_title：Artificial organs

authors： Weymann A,Farag M,Sabashnikov A,Fatullayev J,Zeriouh M,Schmack B,Arif R,Müller F,Alt C,Raake P,Prakash Patil N,Popov AF,Rüdiger Simon A,Karck M,Ruhparwar A,Heidelberg-Cologne-Harefield Cardiothoracic Transplantation & Mecha

更新日期：2017-06-01 00:00:00

abstract：:The Genius is a convenient single-pass batch hemodialysis system. Dialysate is heated during the preparation phase. Once the container is filled at one of the three available starting temperatures, dialysate cools spontaneously. As dialysate temperature plays an important role in hemodynamic stability, knowledge of th...

journal_title：Artificial organs

authors： Dhondt A,Eloot S,Verbeke F,Vanholder R

更新日期：2010-12-01 00:00:00

abstract：:Following implantation of a left ventricular assist device (LVAD), acceptable functional performance is now being achieved; however, peak VO2 and peak work load (watts) remain considerably limited. Maximum physical capacity is essentially dependent on generated cardiac output (CO) and arteriovenous oxygen difference (...

journal_title：Artificial organs

authors： Schmidt T,Bjarnason-Wehrens B,Mommertz S,Hannig M,Schulte-Eistrup S,Willemsen D,Reiss N

更新日期：2018-07-01 00:00:00

abstract：:An investigation has been made into whether charcoal hemoperfusion stimulates a hyperplastic response in the liver of the normal rat. Animals underwent hemoperfusion over Norit RBX1 (Strathclyde, Glasgow, U.K.) charcoal granules using a technique which allowed perfusion in the unrestrained and conscious state. Control...

journal_title：Artificial organs

authors： Ryan CJ,Courtney JM,Wood CB,Blumgart LH

更新日期：1982-05-01 00:00:00

abstract：:We developed a novel miniaturized extracorporeal centrifugal pump "BIOFLOAT NCVC (Nipro Corporation Osaka, Japan) as a ventricular assist device (VAD) and performed a preclinical study that is part of the process for its approval as a bridge to decision by the pharmaceutical and medical device agencies. The aim of thi...

journal_title：Artificial organs

authors： Shimamura J,Mizuno T,Takewa Y,Tsukiya T,Naito N,Akiyama D,Iizuka K,Katagiri N,Nishimura T,Ono M,Tatsumi E

更新日期：2019-09-01 00:00:00

abstract：:Giant cerebral aneurysms may be untreatable by conventional neurosurgical techniques. Early attempts to use circulatory assistance and deep hypothermia were abandoned due to hemorrhagic complications. More recently, interest in circulatory support for complex neurosurgical procedures has been renewed. A consecutive se...

journal_title：Artificial organs

authors： Mesana T,Collart F,Caus T,Pomane C,Graziani N,Bruder N,Dufour H,Grisoli F,Montiès JR

更新日期：2000-06-01 00:00:00

abstract：:Extracorporeal life support (ECLS) has been increasingly utilized to manage cardiac and pulmonary dysfunction. The impact of obesity on outcomes of ECLS is poorly defined. The purpose of the study was to compare in-hospital mortality, resource use, complications, and readmissions in obese versus non-obese patients rec...

journal_title：Artificial organs

authors： Christian-Miller N,Hadaya J,Nakhla M,Sanaiha Y,Madrigal J,Emami S,Cale M,Sareh S,Benharash P

更新日期：2020-11-01 00:00:00

abstract：:A beta2-microglobulin (beta2M) selective adsorbent (Lixelle) for direct hemoperfusion has been used for the treatment of hemodialysis patients with the long-term complication of dialysis related amyloidosis (DRA), but there is no significant correlation between the serum level of beta2M and the occurrence of DRA. Infl...

journal_title：Artificial organs

authors： Tsuchida K,Takemoto Y,Nakamura T,Fu O,Okada C,Yamagami S,Kishimoto T

更新日期：1998-12-01 00:00:00

abstract：:The insults sustained by transplanted livers (hepatectomy, hypothermic preservation, and normothermic reperfusion) could compromise hepatic function. Hydrogen sulfide (H₂S) is a physiologic gaseous signaling molecule, like nitric oxide (NO) and carbon monoxide (CO). We examined the effect of diallyl disulfide as a H₂S...

journal_title：Artificial organs

authors： Balaban CL,Rodriguez JV,Guibert EE

更新日期：2011-05-01 00:00:00

abstract：:Capillary membrane filters are devices commonly used for plasmapheresis and recirculating detoxification systems, including plasmaseparation units. Besides clinical trials and case reports, research on plasmafiltration techniques is carried out using in vitro systems. Notably, such hemoperfused in vitro systems requir...

journal_title：Artificial organs

authors： Unger JK,Haltern C,Dohmen B,Rossaint R

更新日期：2003-07-01 00:00:00

abstract：:The goal of this study was to determine whether porcine islets encapsulated in hollow fibers made of AN69 copolymer can correct hyperglycemia in diabetic mice and provide normal tolerance to a glucose challenge. In vitro perifusion of hollow fibers demonstrated the rapid kinetics of insulin release in response to gluc...

journal_title：Artificial organs

authors： Delaunay C,Darquy S,Honiger J,Capron F,Rouault C,Reach G

更新日期：1998-04-01 00:00:00

abstract：:The effect of blood hematocrit (HCT) on a noninvasive flow estimation algorithm was examined in a centrifugal implantable rotary blood pump (iRBP) used for ventricular assistance. An average flow estimator, based on three parameters, input electrical power, pump speed, and HCT, was developed. Data were collected in a ...

journal_title：Artificial organs

authors： Malagutti N,Karantonis DM,Cloherty SL,Ayre PJ,Mason DG,Salamonsen RF,Lovell NH

更新日期：2007-01-01 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：:The outcome predictors of intra-aortic balloon pump (IABP) in patients who undergo mitral valve surgery remain unknown. This study aimed to retrospectively review valvular surgery in patients who received an IABP to identify the predictors of failure of IABP support and anticipate the necessary therapy. This retrospec...

journal_title：Artificial organs

authors： Liang M,Wang C,Feng K,Chen G,Wang K,Wu Z

更新日期：2020-08-01 00:00:00

abstract：:In transplantation surgery, extending the criteria for organ donation to include organs that may have otherwise been previously discarded has provided the impetus to improve organ preservation. The traditional method of cold static storage (CS) has been tried and tested and is suitable for organs meeting standard crit...

journal_title：Artificial organs

authors： Kumar R,Chung WY,Dennison AR,Garcea G

更新日期：2017-09-01 00:00:00

abstract：:The on-line measurement during hemodialysis of ionic dialysance provides an estimation of urea clearance with a good and already proven correlation. Some discrepancies remain controversial, and the influence of the dialyzer membrane is still being debated. Eighty-eight measurements of ionic dialysance (ID) were perfor...

journal_title：Artificial organs

authors： Mercadal L,Petitclerc T,Jaudon MC,Béné B,Goux N,Jacobs C

更新日期：1998-12-01 00:00:00

abstract：:This paper discussed issues of ethical assessment and moral concern associated with organ replacement and physical enhancement: research, allocation, organ donation, artificial organs, xenografts, biomaterials, and neuromaterials. While emphasizing the medical and moral benefits over associated risks, it calls for a b...

journal_title：Artificial organs

authors： Kielstein R,Sass HM

更新日期：1995-05-01 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：:Extracorporeal membrane oxygenation (ECMO) has long been the sole means of mechanical support for pediatric patients with end-stage cardiac failure, but has a high waitlist mortality and a reported survival to hospital discharge of less than 50%. The purpose of this study was to compare waitlist mortality and survival...

journal_title：Artificial organs

authors： Jeewa A,Manlhiot C,McCrindle BW,Van Arsdell G,Humpl T,Dipchand AI

更新日期：2010-12-01 00:00:00