作者: Psa617 時(shí)間: 2025-3-22 00:04
https://doi.org/10.1007/978-4-431-65964-8heart; Japan; Symposium作者: 遺傳學(xué) 時(shí)間: 2025-3-22 03:42
,Zeitlich ver?nderliche Felder,aluation of up to ten different materials simultaneously. Deposition of radiolabeled platelets and fibrinogen is quantified and used as a measure of thrombogenicity. The canine ex vivo experiment has been implemented in investigations of the roles of many aspects of polymer surface chemistry in plat作者: Grating 時(shí)間: 2025-3-22 06:48 作者: Callus 時(shí)間: 2025-3-22 10:31 作者: MAIZE 時(shí)間: 2025-3-22 13:59 作者: 陳腐的人 時(shí)間: 2025-3-22 17:36
,Zeitlich ver?nderliche Felder, polydimethylsiloxane graft chains, or which are ionically or covalently heparinized, have been synthesized. The water contact angle of these polyurethane derivatives ranged from 0° to 110°..Heparinized polyurethanes were highly blood compatible. The other polyurethane derivatives were more blood co作者: shrill 時(shí)間: 2025-3-23 00:42 作者: circumvent 時(shí)間: 2025-3-23 04:58 作者: 笨重 時(shí)間: 2025-3-23 05:57
Interferenz, Beugung und Streuung, vessel organ reconstruction system designed and developed here is a multiphasic heterocellular structure with a high degree of hierarchy. The structuring components are a polymer matrix, a collagen gel layer, a smooth muscle cell (SMC) multilayer, an artificial basement membrane, and an endothelial作者: strain 時(shí)間: 2025-3-23 12:04 作者: Exonerate 時(shí)間: 2025-3-23 17:04 作者: 事與愿違 時(shí)間: 2025-3-23 19:22
Entwicklung der Atomvorstellung,plate-type blood pump and an actuator with a DC brushless motor and ball screw. For the reliability of the system, a minimal number of sensors are incorporated. Sixteen-bit and eight-bit microprocessors are used for the pump operation and motor speed control, respectively. The motor is driven by a w作者: ALE 時(shí)間: 2025-3-24 01:55
Entwicklung der Atomvorstellung,d contamination through the shaft seal in direct motor drive. To overcome these problems, Baurmeister and Affeld proposed and developed a centrifugal pump with a.nutating (non rotating) impeller, the so-called tea spoon pump. However, a great reduction in hydrolysis is necessary with this pump. Pump作者: labile 時(shí)間: 2025-3-24 02:25 作者: periodontitis 時(shí)間: 2025-3-24 06:42
Grundlagen der Quantenmechanik,he blood pump are coated with either Cardiothane or Cardiomat. The system was tested in experiments on goats, whereby only one of fifteen animals showed sudden thrombus formation after 34 pumping days. The system was also applied in three clinical cases for durations of 18 h, 2 days, and 5 days. In 作者: 脫毛 時(shí)間: 2025-3-24 13:11 作者: Carbon-Monoxide 時(shí)間: 2025-3-24 17:11 作者: 寬容 時(shí)間: 2025-3-24 19:39
Grundlagen der Quantenmechanik,ormal and failing heart groups. RV function was evaluated hemodynamically and by a 2D echocardiography method. Incremental changes in LHB flow ratio from control, 25%, 50%, 75% to the maximum of 85%–100% resulted in decrements of the interventricular septum (IVS) segmental shortening fraction (SSF) 作者: slipped-disk 時(shí)間: 2025-3-25 00:35 作者: 消散 時(shí)間: 2025-3-25 06:49
In vitro and ex vivo studies of the antithrombogenicity of polyether-segmented nylon 610 of crystallvenous shunt in rabbits to estimate the number and adhesiveness of circulating platelets in a living body with an implanted shunt. The results obtained suggest that a copolymer surface with a microstructure composed of crystalline and amorphous phases minimizes the activation of adsorbed platelets, resulting in excellent thromboresistance.作者: connoisseur 時(shí)間: 2025-3-25 07:30
Design and synthesis of blood-compatible polyurethane derivativesmpatible than usual polyetherurethaneureas. It was concluded that hydrophilization and hydrophobilization of the surface are effective for improving the blood compatibility of polyurethanes, which are relatively blood compatible because of their characterisitic surface structure.作者: terazosin 時(shí)間: 2025-3-25 14:24 作者: 明確 時(shí)間: 2025-3-25 16:37 作者: 整頓 時(shí)間: 2025-3-25 22:47
,Zeitlich ver?nderliche Felder,e block copolymers has been found to affect surface properties and platelet-surface interactions. In addition, derivatization strategies for polyurethanes have been developed that enhance the specific adsorption of albumin, a surface passivating protein, and affect thrombogenicity as measured in the canine ex vivo model.作者: 招募 時(shí)間: 2025-3-26 00:29 作者: Foolproof 時(shí)間: 2025-3-26 05:11
,Zeitlich ver?nderliche Felder,ing platelet adhesion in vitro. Ex vivo evaluation of these systems in whole blood shunts under conditions of low flow rate and low shear show an impressive ability of immobilized heparin to prolong shunt patency over control materials.作者: 寬敞 時(shí)間: 2025-3-26 10:34 作者: 截?cái)?nbsp; 時(shí)間: 2025-3-26 14:48
Blood material interactions: Ex vivo investigations of polyurethanese block copolymers has been found to affect surface properties and platelet-surface interactions. In addition, derivatization strategies for polyurethanes have been developed that enhance the specific adsorption of albumin, a surface passivating protein, and affect thrombogenicity as measured in the canine ex vivo model.作者: ALLAY 時(shí)間: 2025-3-26 18:52 作者: committed 時(shí)間: 2025-3-26 22:23 作者: muffler 時(shí)間: 2025-3-27 04:48 作者: Diverticulitis 時(shí)間: 2025-3-27 06:49 作者: sacrum 時(shí)間: 2025-3-27 11:22 作者: 實(shí)施生效 時(shí)間: 2025-3-27 14:40 作者: Ibd810 時(shí)間: 2025-3-27 20:21
Grundlagen der Quantenmechanik,two of the cases, weaning could not be performed because of continued bleeding, and the other patient is still alive. No gross findings of thrombus formation were observed in any of the cases, except for a thin circular thrombus at the junction of the connectors and the sack of the blood pump.作者: commute 時(shí)間: 2025-3-28 01:21
Blood material interactions: Ex vivo investigations of polyurethanesaluation of up to ten different materials simultaneously. Deposition of radiolabeled platelets and fibrinogen is quantified and used as a measure of thrombogenicity. The canine ex vivo experiment has been implemented in investigations of the roles of many aspects of polymer surface chemistry in plat作者: Debark 時(shí)間: 2025-3-28 05:03
Mechanical properties of segmented polyether polyurethanes for blood pump applications, and 5 Hz) on the fatigue properties of Biomer and Toyobo TM5 polyurethanes were studied to obtain basic data for the design of artificial heart pumps and for the development of accelerated endurance test methods..The mechanical properties of these materials deteriorated more significantly followin作者: 雪崩 時(shí)間: 2025-3-28 09:31
Effect of segment structure on fatigue behavior of segmented polyurethaneureas in pseudobiological ey means of differential scanning calorimetry. After immersing in a lipid solution, the specimen showed a weight increase due to sorption of lipids. Acceleration of lipid sorption was observed under cyclic straining. Dynamic viscoelastic measurements revealed that the disordered hard segment lost its作者: GNAW 時(shí)間: 2025-3-28 13:44 作者: 樂(lè)意 時(shí)間: 2025-3-28 17:42
Design and synthesis of blood-compatible polyurethane derivatives polydimethylsiloxane graft chains, or which are ionically or covalently heparinized, have been synthesized. The water contact angle of these polyurethane derivatives ranged from 0° to 110°..Heparinized polyurethanes were highly blood compatible. The other polyurethane derivatives were more blood co作者: 隱士 時(shí)間: 2025-3-28 19:25 作者: elucidate 時(shí)間: 2025-3-29 01:41 作者: adj憂郁的 時(shí)間: 2025-3-29 04:19 作者: AVOW 時(shí)間: 2025-3-29 09:50
A small-caliber vascular graft for aortocoronary artery graft with temporarily artificial and permane carotid arteries were obtained, soaked in distilled water, and then sonicated bring about cell destruction. In this way, a natural tissue tube composed of collagen and elastic laminae was obtained. The tube with a protamine sulfate solution inside was cross-linked with polyepoxy compounds, which m作者: Annotate 時(shí)間: 2025-3-29 14:29
The Novacor heart assist system: Development, testing and initial clinical evaluationd pump coupled to a spring-decoupled electromechanical drive is positioned preperitoneally in the left upper quadrant of the abdomen and connected to an intrathoracic volume compensator. A microprocessor-based electronic controller with rechargeable standby battery is implanted subcutaneously in the作者: 心胸開(kāi)闊 時(shí)間: 2025-3-29 17:17 作者: Vldl379 時(shí)間: 2025-3-29 20:46
Development of nutating centrifugal blood pumpd contamination through the shaft seal in direct motor drive. To overcome these problems, Baurmeister and Affeld proposed and developed a centrifugal pump with a.nutating (non rotating) impeller, the so-called tea spoon pump. However, a great reduction in hydrolysis is necessary with this pump. Pump作者: 演講 時(shí)間: 2025-3-30 02:18
Technical considerations in the development of clinical systems for temporary and permanent cardiac ith a description of two ABIOMED systems: an extracorporeal system (“the BVS”) designed for short-term in-hospital use and an implantable system (“the VAS”) designed for longterm ambulatory use. In the last decade, temporary support to either or both ventricles has moved from the research laboratory作者: hypnogram 時(shí)間: 2025-3-30 07:40 作者: Lineage 時(shí)間: 2025-3-30 08:31
Pulsatile veno-arterial bypass (ECMO) with a pusher-plate pump for profound biventricular failuress incorporated with a membrane oxygenator..Our pulsatile VA extracorporeal membrane oxygenation (ECMO) circuit consisted of a 60-ml pneumatic pusher-plate pump and an extracapillary blood flow membrane oxygenator; it had no reservoirs. The right atrium was cannulated and the oxygenated blood was re作者: insurgent 時(shí)間: 2025-3-30 14:15
Ventricular assist device with built-in trileaflet polyurethane valvesdurability, and antithrombogenicity were evaluated..The mock-loop test indicated that as a result of rapid closure of the leaflet, a pump with the PU valves yielded equivalent output to that of ordinary Bj?rk-Shiley (BS) valves, although a pressure gradient across the PU valves was higher than with 作者: amorphous 時(shí)間: 2025-3-30 17:53 作者: Eosinophils 時(shí)間: 2025-3-30 22:45
Tetsuzo Akutsu (Vice-Director),Hitoshi Koyanagi (S作者: 文件夾 時(shí)間: 2025-3-31 03:36
Mechanical properties of segmented polyether polyurethanes for blood pump applicationsn the case of 0.8-Hz testing. These property changes were significantly less in Biomer than in Toyobo TM5 polyurethane. The material elasticity or flexibility did not significantly depend upon the ambient temperature or cyclic rate of fatigue testing..The changes in the tensile properties of Toyobo 作者: 情感脆弱 時(shí)間: 2025-3-31 07:27
Blood compatibility of polyacrylonitrile containing ethyleneoxide and dimethylamino side chainsxamined in a batch system. Adsorption increased remarkably with a decrease in the DA content. It is concluded that the increase in the DA content decreases the adsorption of RSA and R.G on the copolymer surface, resulting in an increase in the adhesion of platelets on the copolymer surface.作者: 跳動(dòng) 時(shí)間: 2025-3-31 12:13
A small-caliber vascular graft for aortocoronary artery graft with temporarily artificial and permane but was not heparinized, were implanted in eight dogs. All of them were occluded within 1 week. Aortocoronary bypass grafting was also performed using the heparinized graft in eight dogs for periods up to 4 months. All the grafts were confirmed to be patent by autopsy or graft angiography. Measure作者: enhance 時(shí)間: 2025-3-31 15:41 作者: Substance-Abuse 時(shí)間: 2025-3-31 20:23 作者: Measured 時(shí)間: 2025-3-31 23:28 作者: indifferent 時(shí)間: 2025-4-1 03:57 作者: 蔓藤圖飾 時(shí)間: 2025-4-1 06:20
Ventricular assist device with built-in trileaflet polyurethane valveswas changed. In the high-flow group, thrombi on the pump inlet side appeared on the 8th, 16th, and 17th pumping days, while there was no thrombus on the pump outlet side over the same period. Conversely, at the low-flow rate, thrombus formation was found almost simultaneously at the pump inlet and o作者: ANIM 時(shí)間: 2025-4-1 11:06
Right ventricular function during left ventricular assistance evaluated by two-dimensional echocardiuding the IVS subsequently causing reduction of the RV wall. This finding was more pronounced in the failing heart group. The excessive LHB for a prolonged duration not only reduces the RV wall contraction capability but may lead to right heart failure..Our result, therefore, suggests that the LHB r作者: 品嘗你的人 時(shí)間: 2025-4-1 14:55
,Zeitlich ver?nderliche Felder,n the case of 0.8-Hz testing. These property changes were significantly less in Biomer than in Toyobo TM5 polyurethane. The material elasticity or flexibility did not significantly depend upon the ambient temperature or cyclic rate of fatigue testing..The changes in the tensile properties of Toyobo 作者: sundowning 時(shí)間: 2025-4-1 18:45
,Zeitlich ver?nderliche Felder,xamined in a batch system. Adsorption increased remarkably with a decrease in the DA content. It is concluded that the increase in the DA content decreases the adsorption of RSA and R.G on the copolymer surface, resulting in an increase in the adhesion of platelets on the copolymer surface.
