Articles Related to SuperPump

R Kotzé, L Deorsola - 2018 Design of Medical Devices Conference, 2018

Mitral subvalvular apparatus plays an important role in mitral and ventricular dynamics by preserving annuloventricular continuity, known to be fundamental for ventricular function... ...We address these issues through the design of a novel semistented and chorded mitral valve that better mimics the native mitral annulus, leaflets and chordae function and can be made from off-the-shelf biomaterials with the potential to be implanted percutaneously... … Pulse duplicator setup We performed hydrodynamic testing in the mitral position on a hydro-mechanical pulse duplicator system (Vivitro Superpump System SP3891, Vivitro, Victoria, BC, Canada), described elsewhere [4]. We used a 25mm Sorin Bicarbon bileaflet …

Other Products Cited:  Heart Valve Testing

Visit Source 
Wei-Ling ChenChiu-Chin WuChung-Dann Kan - World Congress on Medical Physics and Biomedical Engineering 2018 pp 519-524

...Percutaneous pulmonary valve implantation (PPVI) has evolved as most exciting development surgical strategy with dysfunctional right ventricle-pulmonary artery conduits. ... ...The purpose of this study is to investigate the hemodynamic and functional consequences of the new design using a mock circulation system... … vasculature. Blood pressures and flows are driven by a digitally controlled hydraulic piston pump (ViViTro Labs Inc., Super Pump System, Victor, BC) to produce pulsatile waves with heart rates of 60 and 80 beats/min from ARV to ARA …

Other Products Cited:  Heart Valve Repair  Heart Valve Testing

Visit Source 
Wei-Ling Chena, Chia-Hung Linb, Jieh-Neng Wangc, Pong-Jeu Lud, Ming-Yao Chand, Jui-Te Wue, Chung-Dann Kanf

...This study proposes an assistive technology to quantify regurgitation using the regurgitation fraction (RF) and heart pump efficiency (HPE). … pulmonary valves. The blood pressure and flow were driven by a digitally controlled hydraulic piston pump (ViViTro Labs Inc., Super Pump System, Victor, BC) to produce pulsatile waves with heart rates of 60 and 80 beats/min. The …

Other Products Cited:  Heart Valve Repair  Heart Valve Testing

Visit Source 
Jahren SE, Hurni S, Heinisch PP, Winkler B, Obrist D, Carrel T, Weber A - Interactive CardioVascular and Thoracic Surgery 26 (2018) 248–256

Many surgical and interventional methods are available to restore patency for patients with degenerative severe mitral valve regurgitation... ...Eight porcine mitral valves were tested under pulsatile flow conditions in an in vitro pulsatile flow loop for haemodynamic quantification.... ...All surgical reconstruction techniques were able to sufficiently correct the acute mitral valve regurgitation.... ...The LV chamber was actuated using a computer-controlled piston pump (ViVitro Systems Inc., Victoria, Canada) attached to the LV chamber...

Other Products Cited:

Visit Source 
Silje Ekroll Jahren, Paul Philipp Heinisch, David Haslera, Bernhard Michael Winkler, Stefan Stortecky, Thomas Pilgrim, Martina Correa Londono, Thierry Carrel, Hendrik von Tengg-Kobligk and Dominik Obrist - Interactive CardioVascular and Thoracic Surgery (2018) 1–8

Bioprosthetic valve thrombosis has been considered uncommon, but recent studies have shown that it is more frequent than previously thought. ...Two compliant aortic root phantoms with different morphologies (symmetrical and patient-specific) were fabricated with silicone. A bioprosthetic aortic valve was inserted in both phantoms.... ...Blood flow in the aortic root and the washout of the sinus portion are significantly affected by aortic root morphology.... ...The flow loop was actuated by a piston pump (ViVitro Systems Inc., Victoria, BC, Canada)...

Other Products Cited:

Visit Source 
Marije E. Kamphuis; Gert Jan Pelgrim; Marcel J. W. Greuter; Riemer H. J. A. Slart; Cornelis H. Slump Proceedings Volume 10577, Medical Imaging 2018: Image Perception, Observer Performance, and Technology Assessment; 1057714 (2018); doi: 10.1117/12.2286337 Event: SPIE Medical Imaging, 2018, Houston, Texas, United States

...Myocardial perfusion imaging (MPI) is a commonly used diagnostic method in coronary artery disease (CAD)... ... In line with proper clinical decision-making, it is essential to assess institutional MPI test validity by confronting MBF assessment to a ground truth. Our research focuses on developing such validation instrument/method for MPI by means of simulating controlled myocardial perfusion in a phantom flow setup.... … All the data presented in this paper were obtained with the open circuit setup to prevent contrast recirculation. The used piston pump (Vivitro Superpump, Vivitro Labs, Victoria, Canada) generates programmable pulsatile flow

Other Products Cited:  Pulsatile Flow Simulation

Visit Source 
S Houser, I Okafor, V Raghav, A Yoganathan - Journal of Visualization First Online: 16 February 2018

...The objective of this study was to characterize three distinct orientations (30°, 60° and 90°) of the non-parallel jet–vortex interaction in a simplified flow loop... … 1 Experimental setup of jet–vortex interaction flow loop. A programmable pulsatile pump (ViVitro SuperPump) allowed for controlled, isolated vortex rings to be ejected into the chamber, as shown in Fig. 2. The flow profile for vortex ring ejection is shown in Fig …

Other Products Cited:  Flow Visualization

Visit Source 
Munirah Ismail, Foad Kabinejadian, Yen Ngoc Nguyen, Edgar Tay Lik Wui, Sangho Kim, Hwa Liang Leo - - Medical Engineering and Physics October 25, 2017

...The study utilises both 2-D and 3-D particle image velocimetry (PIV) to interrogate the flow patterns in the vicinity of the extra-cardiac tricuspid valves in an in vitro physiological flow loop, specifically at four measurement locations in the cavo-atrial anatomy. ... ... of the hepatic vein. In contrast, the SVC valve was fully implanted in the SVC. The mock circulatory system was driven by a pulse generator (SuperPump AR series, ViVitro Labs Inc., Victoria, BC, Canada). It comprised of an ultrasonic ...

Other Products Cited:  Flow Visualization  Heart Valve Testing

Visit Source 
W Conlin, P Yu, V Durgesh - Bulletin of the American Physical Society, 2017

...The objective of this study is to identify the large-scale structures in the aneurysm, study temporal behavior, and quantify their interaction with the inflow condition. ... ... For this purpose, detailed Particle Image Velocimetry (PIV) measurements were performed at the center plane of an idealized aneurysm model for a range of inflow conditions. Inflow conditions were precisely controlled using a ViVitro SuperPump system. ...

Other Products Cited:  Flow Visualization

Visit Source 
P Yu, V Durgesh, H Johari - Bulletin of the American Physical Society, 2017

...Studies have shown that hemodynamics is integral to developing an understanding of aneurysm formation, growth, and rupture. This investigation focuses on a comprehensive study of the impact of varying inflow conditions and aneurysm shapes on spatial and temporal behavior of flow parameters and structures in an aneurysm.... ... For this purpose, detailed Particle Image Velocimetry (PIV) measurements were performed at the center plane of an idealized aneurysm model for a range of inflow conditions. Inflow conditions were precisely controlled using a ViVitro SuperPump system. ...

Other Products Cited:  Flow Visualization

Visit Source 
FM Cardoso, SS Furuie - Proc. of SPIE Vol, 2017

Ultrasound elastography has become an important procedure that provides information about the tissue dynamics and may help on the detection of tissue abnormalities. We propose a novel algorithm to perform speckle tracking, which consists in an implementation of 2D Block Matching with two enhancements: sub-pixel linear interpolation and displacement propagation, which are able to increase resolution, reduce computation time and prevent kernel mismatching errors. ... studies on their numerical analogs. Fig. 1 Section of the f20dX LV phantom. Dimensions in [mm]. METHODS Fig. 2 Experimental setup. 1 – GE Vivid 6 scanner; 2 – water tank; 3 – LV model; 4 – M4S-RS probe; 5 – windkessel; 6 – Vivitro Superpump; 7 – Pump Controller; 8 – PC. ...

Other Products Cited:  Ultrasound Measurements

Visit Source 
Lim, Brian. Muhammad Mujahid. Tan, Rong Wang. Arunkumar, U. Singapore Polytechnic School of Mechanical and Aeronautical Engineering

Coronary heart disease (CHD) is a common cardiac disorder in which a portion of the coronary artery is blocked, leading to a potential heart attack. Timely and accurate evaluation of suspected CHD patients is critical. Computer Tomography Angiography (CTA)... In order to streamline the evaluation of suspected CHD patients, we propose to create a more accurate and consistent diagnostic method of interpreting CTA results.

Other Products Cited:  Pulsatile Flow Simulation

Visit Source 
S. Hamed Alavi, Marc Soriano Baliarda, Noemi Bonessio, Lorenzo Valdevit, Arash Kheradvar: Annals of Biomedical Engineering First Online: 22 December 2016

...The main problem with the tissue engineered heart valves is their progressive deterioration that leads to regurgitation and/or leaflet thickening a few months after implantation... ...The current work aims to study the effects of the design features on mechanical characteristics of this valve scaffold to attain proper function prior to in vivo implantation. ... The heart flow simulator system was adjusted for left ventricular pressure waveform with diastolic/systolic pressures of 80/120 mmHg produced by a hydraulic pump system (Superpump system, VSI, SPS3891, Vivitro systems Inc., Victoria, BC, Canada).10 The scaffolds were ...

Other Products Cited:

Visit Source 
Apoorva Girish, MD, Muralidhar Padala, PhD, Kanika Kalra, MD, Bryant V. McIver, MD, Ravi K. Veeraswamy, MD, Edward P. Chen, MD, and Bradley G. Leshnower, MD: Ann Thorac Surg. 2016 Dec;102(6):1925-1932. doi: 10.1016/j.athoracsur.2016.05.020. Epub 2016 Jul 15.

Partial false lumen (FL) thrombosis is a risk factor for long-term mortality in acute type B aortic dissection (ATBAD). This study investigates FL pressures in models of ATBAD with patent and partially thrombosed FL... ...A programmable pulsatile pump (SuperPump; ViVitro Systems, Victoria, BC, Canada) was connected to the left ventricle through a cannula inserted into the apex... ...In a biologic model of ATBAD, the number, location, and FL thrombosis status determine FL pressure. In the setting of partial FL thrombosis, the FL pressure is reduced with proximal tear occlusion and increased with distal tear occlusion. Reduced FL pressure is related to retrograde flow...

Other Products Cited:

Visit Source 
Ahmad Falahatpisheha, Daisuke Morisawaa, Taraz T. Tooskyb, Arash Kheradvara Journal of Biomechanics Available online 16 November 2016

...developed a novel polymeric valve whose leaflets possess calcium hydroxyapatite inclusions immersed in them. This study reports the characteristics and feasibility of these valves. ... The system is connected and actuated by a pulsatile pump system (Superpump system, VSI, SPS3891, Vivitro systems Inc., Victoria, BC, Canada), which operates based on a VSI Wave Generator VG2001 (Vivitro Systems Inc., Victoria, BC, Canada) and controlled by a ...

Other Products Cited:  Pulsatile Flow Simulation

Visit Source 
Keyvan Amini Khoiy, Dipankar Biswas, Thomas N Decker, Kourosh T Asgarian, Francis Loth and Rouzbeh Amini Circulation November 11, 2016, Volume 134, Issue Suppl 1

...study to establish a framework for the measurement of the deformation of TV leaflets in a passive ex-vivo beating heart that mimicked the right ventricular dynamic pressure of the normal hearts. ...apexes of fresh porcine hearts (n= 8) were connected to a positive displacement pump (SuperPump AR Series, Vivitro Labs Inc., BC) to generate pulsatile flow in the right side of the hearts. The superior vena cava was connected to a reservoir as the inflow pathway and the pulmonary artery was used for the outflow pathway...

Other Products Cited:  Ex ViVo Simulation

Visit Source 
E. Foucaulta, S. Hubersona, P. Brauda, D. Coisneb European Journal of Mechanics-B/Fluids Available online 17 November 2016

...study investigates pulsatile flow through models of junctions corresponding to geometries most usually observed in the major coronary artery, with and without stent. ... 31] and [32]. 2.2. Experimental setup. The mean flow has its source in a tank set at constant height, the oscillatory flow is driven by a piston pump (Model SPS 3891,Vivitro Systems, Canada) as shown in Fig. 1. The oscillatory ...

Other Products Cited:

Visit Source 
Esmé J. Donselaar, MD, Andrew Holden, FRANZCR, EBIR, Aleksandra C. Zoethout, BSc, Clark J. Zeebregts, MD, PhD, Michel M. P. J. Reijnen, MD, PhD Journal of Endovascular Therapy Nov 17, 2016

Purpose: To describe the feasibility and technical aspects of a proximal Nellix-in-Nellix extension to treat caudal stent-graft migration after endovascular aneurysm sealing (EVAS) in the in vitro and in vivo settings. ... Silicone anatomical models were used in conjunction with a pulsatile flow pump (SuperPump; Vivitro Labs Inc, Victoria, British Columbia, Canada). The system was tuned to a pressure of ~120/80 mm Hg, with 4.5- to 5-L/min flow at a rate of 70 beats/min. ...

Other Products Cited:  Endovascular Simulator

Visit Source 
Keyvan Amini Khoiy, Dipankar Biswas, Thomas N. Decker, Kourosh T. Asgarian, Francis Loth and Rouzbeh Amini; Journal of Biomechanical Engineering revised August 23, 2016

...For the first time, the porcine valve leaflets deformation was measured in a passive ex-vivo beating heart without isolating and remounting the valve annuli. In particular, the right ventricular apexes of porcine hearts (n = 8) were connected to a pulse-duplicator pump that maintained a pulsatile flow from and to a reservoir connected to the right atrium and the pulmonary arteries... A positive displacement pump 116 (SuperPump AR Series, Vivitro Labs Inc., BC, Canada) was connected to the apex of the right 117 ventricle after an incision was carefully made at this location (as described in more detail below)...

Other Products Cited:  Ex ViVo Simulation

Visit Source 
Munirah Ismail, Gideon Praveen Kumar, Foad Kabinejadian, Yen Ngoc Nguyen, Fangsen Cui, Edgar Lik Wui Tay, Hwa Liang Leo - Cardiovascular Engineering and Technology pp 1-16 First online: 29 June 2016

Transcatheter tricuspid valves are implanted onto the cavoatrial junction in order to avoid the challenging task of anchoring the valve onto the complex tricuspid valve annulus. ...little is known about optimum extent of oversizing of the valved stent in a vena cava. In this study, we implanted valves of the same diameter onto the larger sized inferior vena cava (IVC) and a smaller sized superior vena cava (SVC). ... that half of the valve protrudes out of the vena cava. This is to comply with the anatomical constraint of not occluding the hepatic vein. The pulsatile flow loop was driven by a wave-generating piston pump (SuperPump AR series, ViVitro Labs Inc., Victoria, BC, Canada). ...

Other Products Cited:

Visit Source 

STAY UPDATED

Sign up for our newsletter today

Website Survey

Answer a few questions about our website and we'll enter you into draw for a limited edition KENEK EDGE Pulse Oximeter.

Prizes will be shipped to 5 North American survey respondents that include their email contact information.

Take Survey No Thanks