Articles Related to SuperPump

S. Zhan-Moodie, D. Xu, K. S. Suresh, Q. He, D. Onohara, K. Kalra, R. A. Guyton, E. L. Sarin, M. Padala. JTCVS Open.

...actuating pump with a viscoelastic impedance (Superpump, Vivitro Labs, London, ON) was connected to the LV, and programmed to generate physiological left ventricular pressures. 0.9% saline was used as the working medium in this flow loop...

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P. Yu, V. Durgesh, T. Xing, R. Budwig. Journal of Biomedical Engineering. Vol. 143.

… vectors in the sac region. 3.3 Pump System. To generate controlled inflow conditions for this study, a piston pump (ViVitro Labs Inc. SuperPump Sys- tem AR Series, Victoria, BC, Canada) was used. The piston pump system …

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K. Busink

...the Vivitro pump, labeled F, (SuperPump, ViVitro labs,Victoria, Canada) was used to create the oscillatory waveform...

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J. Van der Hoek

...a hydraulic piston pump (SuperPump, ViVitro labs, Victoria, Canada) was used to generate the pulsatile flow and...

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A. Packy, G. A. D'Souza, M. Farahmand, L. Herbertson, C. G. Scully. Cardiovascular Engineering and Technology.

… Pressure measurement location. ºFlow measurement location. Full size image. Deionized water is circulated through the MCL using a piston pump [ViVitro Labs, Victoria, BC, Canada] that is fluid-coupled to a suspended silicone-based mock ventricular sac …

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N Norris, K Lewis, C Settanni, T Becker, A Ducruet. Journal of Neurointerventional Surgery. Volume 13 Issue Suppl 1.

...physiologically-relevant patient flow parameters were tuned within the system using a Super Pump AR (ViVitro Labs). A data acquisition system (DAQ) with LabVIEW® software recorded real time pressure and flow waveforms, mean arterial pressures (MAP) and flows through each inlet and outlet branch of the 3D-printed CW model. The flow model included an introducer for microcatheter and device delivery access...

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Omid Bafkar, Gary Rosengarten, Milan.J. Patel, Daniel Lester, Hadrien Calmet, Vu Nguyen, Stefan Gulizia, Ivan.S. Cole, Effect of inhalation on oropharynx collapse via flow visualisation, Journal of Biomechanics, Volume 118, 2021, 110200, ISSN 0021-9290, https://doi.org/10.1016/j.jbiomech.2020.110200.

… Fluorescent spherical particles (500-600 µm diameter, Cospheric LLC, Santa Barbara, USA) were injected into the head of a piston-driven SuperPump (Vivitro Labs, Victoria, Canada) that was connected to an …

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Annabel M. Imbrie-Moore, Cole C. Paullin, Michael J. Paulsen, Frederick Grady, Hanjay Wang, Camille E. Hironaka, Justin M. Farry, Haley J. Lucian. Y. Joseph Woo - Medical Engineering & Physics Available online 31 January 2020

...This work shows the design and implementation of a 3D-printed valve dilation device to preferentially dilate the posterior mitral valve annulus... ...In brief, a custom 3D-printed left heart chamber (Fig. 2A) was mounted to a pulsatile linear piston pump (ViVitro Superpump, ViVitro Labs, Victoria, BC, Canada) with the ability to generate physiologic conditions … ...this annular dilation device provides the means to investigate the design and optimization of novel annuloplasty rings....

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Michael J Paulsen, Annabel M Imbrie-Moore, Hanjay Wang, Jung Hwa Bae, Camille E Hironaka, Justin M Farry, Haley J Lucian, Akshara D Thakore, John W MacArthur, Jr, Mark R Cutkosky, Y Joseph Woo - European Journal of Cardio-Thoracic Surgery, ezz258

Posterior ventricular anchoring neochordal (PVAN) repair is a non-resectional technique for correcting mitral regurgitation (MR) due to posterior leaflet prolapse, utilizing a single suture anchored in the myocardium behind the leaflet... ...Porcine mitral valves were mounted in a 3-dimensional-printed heart simulator and chordal forces, haemodynamics and echocardiography were collected at baseline, after inducing MR by severing chordae, and after PVAN repair.... ...PVAN repair eliminates MR by positioning the posterior leaflet for coaptation, distributing forces throughout the valve....

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Yen Ngoc Nguyen, Edgar Lik Wui Tay, Foad Kabinejadian, Chi Wei Ong, Munirah Ismail, and Hwa Liang Leo -American Journal of Physiology-Heart and Circulatory Physiology 11 OCT 2019

The deteriorating nature of severe functional tricuspid regurgitation (FTR) has led to the heightened interest in this pathology... ...In this study, the hemodynamics of the right ventricle (RV) after (i) clover edge-to-edge tricuspid repair and (ii) double orifice tricuspid repair was evaluated in three right heart models using an ex vivo pulsatile platform emulating severe FTR with the aid of stereoscopic particle image velocimetry... … circulation (35). A closed ventricular chamber housing the silicon RV model was directly 184 connected to the pulsatile wave-generating piston pump (SuperPump AR series, ViVitro Labs 185 Inc., Victoria, BC, Canada) to …

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Ong, C. W.; Kabinejadian, F.; Xiong, F.; Wong, Y. R.; Toma, M.; Nguyen, Y. N.; Chua, K. J.; Cui, F. S.; Ho, P.; Leo, H. - Journal of Applied Fluid Mechanics . Nov2019, Vol. 12 Issue 6, p1855-1872. 18p.

Thoracic aortic aneurysm (TAA) is a severe cardiovascular disease with a high mortality rate, if left untreated... ...In order to gain more insight on TAA formation, we developed a computational framework in vitro to investigate and compare the flow patterns between pre-aneurismal and post-aneurismal aorta using a deformable wall model... ...The pulsatile flow was created using a piston pump (SuperPump AR series, ViVitro Labs Inc., Victoria, BC, Canada) generating the inlet velocity profile with the How rate of 4 L/min at the frequency of 1 Hz, extracted from the literature …

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C Settanni, T Becker, A Ducruet, W Merritt, A Huckleberry - Journal of NeuroInterventional Surgery (JNIS) Volume 11, Issue Suppl 1

Although current microcatheter technologies have advanced in recent years, corresponding endovascular devices still lag behind... ...This research project includes development of innovative in vitro aneurysm vessel model with complex side branching.... … communicating (ACA) bifurcation. Flow is regulated through the use of a Super Pump AR (ViVitro Labs). This 3D printed model will be implemented in an in vitro flow model that enables systemic data collection. A data acquisition … ...The in vitro model is used to simulate and quantify short-and long-term viability of new biomaterials for brain aneurysm embolization...

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Immanuel David Madukauwa-DavidVahid SadriPrem A MidhaVasilis BabaliarosCyrus AidunAjit P. Yoganathan - Annals of Biomedical Engineering First Online: 16 July 2019

Transcatheter heart valve (THV) leaflet thrombosis in the neo-sinus and associated reduced leaflet motion is of clinical concern due to risks of embolism and worsened valve hemodynamics... ...We tested two replicas of FDA approved commercial THVs—intra-annular and supra-annular (similar to the SAPIEN 3 and CoreValve families)—in a left heart simulator with coronary flow... … The Georgia Tech left heart simulator is shown in Fig. 2a. The main flow rate was driven by the primary piston pump (Vivitro Labs Inc. Victoria, Canada); wall-tapped pressure transducers (Deltran DPT-200, Utah Medical Products Inc

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MJ Paulsen, JH Bae, A Imbrie-Moore, H Wang, CE Hironaka, JM. Farry, H Lucian, AD Thakore, MR Cutkosky, WJ Woo … - Journal of Biomechanical Engineering Accepted manuscript posted July 1, 2019 2019

Few technologies exist that can provide quantitative data on forces within the mitral valve apparatus... Using FBG sensors, we created a force-sensing neochord that mimics the natural shape and movement of native chordae.... … Redwood City, CA, USA) was mounted to a programmable pulsatile linear piston pump (ViVitro Superpump, ViVitro Labs, Victoria, BC, Canada) with the ability to generate physiologic conditions using the pump controller and …

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Chi Wei Ong, Fei Xiong, Foad Kabinejadian, Gideon Praveen Kumar, Fang Sen Cui. Gongfa Chen, Pei Hoe, HwaLiang Leo - Journal of Biomechanics Available online 19 January 2019

Thoracic endovascular aortic repair (TEVAR) has been introduced as a less invasive approach to the treatment of thoracic aortic aneurysm (TAA). However, the effectiveness of TEVAR in the treatment of TAA is often limited due to the complex anatomy of aortic arch... ...This study proposes a novel stent graft design with slit perforations that can positively alter the hemodynamics at the aortic arch while maintaining blood flow to supra-aortic branches... … flow preservation at side branches. The system was driven by a pulse generator (SuperPump AR series, ViVitro Labs Inc., Victoria, BC, Canada) at a flow rate of 5 L/min and a pulse rate of 1 Hz. The reservoir level and mechanical …

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Jonas Rasmussen, Søren Nielsen Skov, Ditte Bruus Nielsen, Ida Lindhardt Jensen, Marcell Juan Tjørnild, Peter Johansen, Vibeke E. Hjortdal - Journal of Cardiothoracic Surgery December 2019, 14:6

Management of congenital malformations of the pulmonary artery and valve can be challenging. The severity often demands early intervention, which is rarely definitive due to the natural growth and multiple surgeries may be required... ...In this study, a simple valve design supported by an absorbable proximal stabilization ring is evaluated both in-vitro and in-vivo... … In-vitro model and testing. All in-vitro testing was carried out in a pulsatile flow model using water as the test fluid (Fig. 2). Pulsatile flow and pressure were generated with an electromechanical piston pump (VSI Superpump, Vivitro Labs, Victoria, Canada) …

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Diya Wang; Boris Chayer ; François Destrempes ; François Toumoux ; Guy Cloutier - 2018 IEEE International Ultrasonics Symposium (IUS) 20 December 2018

Aortic stiffness is altered by cardiovascular diseases and exacerbated in innate or pathological conditions, which might be detected by noninvasive vascular elastography.... ...results suggest that the proposed model could detect and evaluate aortic aneurysm stiffness and may be useful clinically for the early and timely detection of degraded mechanical properties to impact patient outcomes.... … Hz. Normal and aneurysm aortic deformations were compared by pulsing mimicing vessels at 60 bpm, using a hydraulic pulse duplicator within a left ventricular model (Superpump system, Vivitro Inc., Victoria, BC, Canada) …

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Keyvan Amini Khoiy, Kourosh T. Asgarian, Francis Loth, Rouzbeh Amini - PLOS ONE Published: November 8, 2018

Chordae rupture is one of the main lesions observed in traumatic heart events that might lead to severe tricuspid valve (TV) regurgitation... ...we investigated the changes on TV geometry, mechanics, and function of ex-vivo porcine hearts following chordae rupture... … The schematic of this apparatus is shown in Fig 1. In short, a positive displacement pump (SuperPump AR Series, Vivitro Labs, Inc., Victoria, BC, Canada) was utilized to induce passive beating in porcine hearts …

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Yuriy TASINKEVYCH, Marcin LEWANDOWSKI, Ziemowit KLIMONDA, Mateusz WALCZAK - Polish Academy of Sciences ARCHIVES OF ACOUSTICS Vol. 43, No. 3, pp. 437–446 (2018)

Commercially available cardiac scanners use 64–128 elements phased-array (PA) probes and classical delay-and-sum beamforming to reconstruct a sector B-mode image... ...The goal of this study was to show the feasibility of reducing the channel count in the diverging wave synthetic aperture image reconstruction method for phased-arrays.... … a water tank with dedicated absorbers at- tenuating the reflected waves (Aptflex F28 and Aptflex F28P, Precision Acoustics, UK), tubing system, wind- kessel (to reduce/eliminate phantom vibrations), Viv- itro Superpump …

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Charles H. Bloodworth MS IV Eric L. Pierce PhD Keshav Kohli MS Nancy J. Deaton BS Kaitlin J. Jones BS Radhika Duvvuri BS Norihiko Kamioka MD Vasilis - C. Babaliaros MD Ajit P. Yoganathan PhD - Catheterization and Cardiovascular Interventions 09 August 2018

...Leaflet tethering commonly seen in functional mitral regurgitation may be a significant factor affecting the severity of MS after MitraClip implantation... … conditions. A piston pump (Vivitro Labs Inc. Victoria, Canada) drove physiological left heart flow within the simulator, while an electromagnetic flow probe (Carolina Medical Electronics, East Bend, NC) measured cardiac output (CO) …

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