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13 results

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Page 1
Auxiliary device for calibration of roller pumps: development and experimental results.
Vieira FU Jr, Dantas de Medeiros J Jr, Antunes N, Vieira RW, Costa ET. Vieira FU Jr, et al. Perfusion. 2012 Nov;27(6):512-9. doi: 10.1177/0267659112453077. Epub 2012 Jul 16. Perfusion. 2012. PMID: 22802002
OBJECTIVE: To describe an auxiliary device for adjusting roller pumps using the dynamic calibration method and show preliminary results of its application in surgical procedures. ...We have found less variability of hemolysis rates in the operating room, using the …
OBJECTIVE: To describe an auxiliary device for adjusting roller pumps using the dynamic calibration method and show preliminar …
Does the roller pump adjustment in cardiopulmonary bypass settings influence hemolysis?
Vieira Junior FU, Antunes N, de Oliveira PP, Silveira Filho LM, Vilarinho KAS, Costa ET. Vieira Junior FU, et al. Int J Artif Organs. 2017 Apr 21;40(3):118-122. doi: 10.5301/ijao.5000570. Epub 2017 Mar 7. Int J Artif Organs. 2017. PMID: 28315503
INTRODUCTION: Roller pumps are widely used in procedures involving cardiopulmonary bypass (CPB) due to their ease of operation and maintenance, safety, and cost. Several studies in the literature have compared the use of roller pumps with centrifugal pumps, but the …
INTRODUCTION: Roller pumps are widely used in procedures involving cardiopulmonary bypass (CPB) due to their ease of operation and ma …
A theoretical model for roller-shape design of three-roller continuous and synchronous calibration process of ovality and straightness for large thin-walled pipes.
Huang X, Gu J. Huang X, et al. Sci Rep. 2024 Mar 26;14(1):7094. doi: 10.1038/s41598-024-57753-0. Sci Rep. 2024. PMID: 38528082 Free PMC article.
Large thin-walled pipes are particularly suitable for oil and gas transport and auxiliary pipes in cold areas or deep sea-beds. At present, the rounding and straightening processes are completed independently, and the theoretical model for roller-shape design is ana …
Large thin-walled pipes are particularly suitable for oil and gas transport and auxiliary pipes in cold areas or deep sea-beds. At pr …
Improvement on the auxiliary total artificial heart (ATAH) left chamber design.
Andrade A, Fonseca J, Legendre D, Nicolosi D, Biscegli J, Pinotti M, Ohashi Y, Nosé Y. Andrade A, et al. Artif Organs. 2003 May;27(5):452-6. doi: 10.1046/j.1525-1594.2003.07236.x. Artif Organs. 2003. PMID: 12752207
The auxiliary total artificial heart (ATAH) is an electromechanically driven artificial heart with reduced dimensions, which is able to be implanted in the right thoracic or abdominal cavities of an average human patient without removing the natural heart or the heart neur …
The auxiliary total artificial heart (ATAH) is an electromechanically driven artificial heart with reduced dimensions, which is able …
[IMPROVING THE PERFUSION FLOW OF BLOOD PUMPS].
Khodeli N, Chkhaidze Z, Shengelia O, Songulashvili D, Inauri N. Khodeli N, et al. Georgian Med News. 2021 Apr;(313):158-162. Georgian Med News. 2021. PMID: 34103449 Russian.
Research in recent years has shown that pulsating flow during cardiopulmonary bypass can prevent the development of a number of perfusion complications inherent in continuous blood flow. On the other hand, attempts to pulsate with roller and centrifugal pumps, which are st …
Research in recent years has shown that pulsating flow during cardiopulmonary bypass can prevent the development of a number of perfusion co …
Cardiovascular simulator improvement: pressure versus volume loop assessment.
Fonseca J, Andrade A, Nicolosi DE, Biscegli JF, Leme J, Legendre D, Bock E, Lucchi JC. Fonseca J, et al. Artif Organs. 2011 May;35(5):454-8. doi: 10.1111/j.1525-1594.2011.01266.x. Artif Organs. 2011. PMID: 21595711
The PCS system is automatically controlled by a computer and is an auxiliary tool for VAD control strategies development. This PCS system is according to a Windkessel model where lumped parameters are used for cardiovascular system analysis. Peripheral resistance, arteries …
The PCS system is automatically controlled by a computer and is an auxiliary tool for VAD control strategies development. This PCS sy …
A one-stage, high-load capacity separation actuator using anti-friction rollers and redundant shape memory alloy wires.
Xiaojun Y, Dawei H, Xiaoyong Z, Ying L, Qiaolong Y. Xiaojun Y, et al. Rev Sci Instrum. 2015 Dec;86(12):125005. doi: 10.1063/1.4938178. Rev Sci Instrum. 2015. PMID: 26724064
The novel actuator is based on a one-stage locking mechanism, which means that the separation is directly driven by the SMA wire. To release a large preload, a group of anti-friction rollers are adopted to reduce the force for triggering. In addition, two SMA wires are use …
The novel actuator is based on a one-stage locking mechanism, which means that the separation is directly driven by the SMA wire. To release …
Transapical left ventricular bypass (TALVB) without an auxiliary ventricle.
Peters JL, McRea JC, Fukumasu H, Kolff WJ. Peters JL, et al. Trans Am Soc Artif Intern Organs. 1976;22:357-66. Trans Am Soc Artif Intern Organs. 1976. PMID: 951851
A simple transapical left ventricular bypass system employing a roller pump, transapical LV withdrawal catheter, and outflow filter for continuous blood filtration, has been developed and evaluated in unanesthetized sheep for periods beyond 2 wks. ...
A simple transapical left ventricular bypass system employing a roller pump, transapical LV withdrawal catheter, and outflow filter f …
Development of 400 microm pellets by extrusion-spheronization: application with Gelucire 50/02 to produce a "sprinkle" form.
Flament MP, Dupont G, Leterme P, Farah N, Gayot A. Flament MP, et al. Drug Dev Ind Pharm. 2004 Jan;30(1):43-51. doi: 10.1081/ddc-120027510. Drug Dev Ind Pharm. 2004. PMID: 15000429
An Alexanderwerk GA65 cylinder extruder with two counter-rotating rollers associated with a Caleva model 15 spheronizer were used. The study was made with an auxiliary substance of fatty consistency and with amphiphilic properties: Gelucire 50/02. ...The horizontal …
An Alexanderwerk GA65 cylinder extruder with two counter-rotating rollers associated with a Caleva model 15 spheronizer were used. Th …
13 results