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Kedwai, Baqir et al. JVS-Vascular Science, Volume 6, 100287
AAA sac management with persistent growth or endoleak in patient continue to be a challenge. This publication demonstrates the modularity of the ViVitro Labs Pulsatile Flow Pump in building advanced mock circulatory loops, and how the ViVitro Labs systems can be used to assess the impact of an embolization technique on the reduction of AAA sac volume and improve a procedure clinical outcome. "A Vivitro SuperPump (Victoria, BC, Canada) cardiac simulator was connected to both ends of a 30-gallon plastic basin using plastic tubing. The graft model construct was placed into the basin and securely attached proximally and distally to the plastic tubing with circumferential clamps. The basin was filled with water and gel beads for optimal acoustic conditions. Once the model was connected to the flow circuit, water was pumped through the system at 70 beats per minute with an average flow rate of 3.5 L/min."
Other Products Cited: Customized Circulatory Loop Customized circulatory systems Peripheral devices testing Stent and Stent/Graft SuperPump
Visit SourceMirgolbabaee H, van de Velde L, Geelkerken RH, Versluis M, Groot Jebbink E, Reijnen MMPJ. Journal of Endovascular Therapy. 2023;0(0).
To identify potential hemodynamic predictors for limb thrombosis (LT) following endovascular aneurysm repair with the Anaconda endograft in a patient-specific phantom. A hydraulic piston-driven pump (SuperPump, ViVitro labs, Victoria) was used to set a suprarenal flow profile as inlet boundary condition. In conclusion, these in vitro data show that unfavorable hemodynamics are present in the limb that presented with LT, compared to the non-thrombosed side, with higher VC and longer RT.
Other Products Cited: Customized Circulatory Loop Flow Visualization Pulsatile Flow Simulation Stent and Stent/Graft SuperPump
Visit SourceZhu Y, Park MH, Pandya PK, Stark CJ, Mullis DM, Walsh SK, Kim JY, Wu CA, Baccouche BM, Lee SH, Baraka AS, Joo H, Yajima S, Elde S, Woo YJ. Ann Cardiothorac Surg 2023;12(4):326-337
The goal was to preserve the native aortic valve (AV) leaflets in patients with aortic root aneurysm with or without aortic regurgitation (AR). The ex vivo system consists of a linear piston pump (ViVitro Superpump, ViVitro Labs, Victoria, BC, Canada) to generate a physiologic waveform in compliance with ISO 5840 standards. Similar to our previous ex vivo evaluation of the VSARR operation, we again confirmed that SG, compared with sinus containing graft, most closely recapitulated the native aortic root biomechanics.
Other Products Cited: Ex ViVo Simulation SuperPump
Visit SourceDiya Wang, Boris Chayer, François Destrempes, Jonathan Porée, Marie-Hélène Roy Cardinal, François Tournoux, Guy Cloutier, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control (Volume: 69, Issue: 12, December 2022) Page(s): 3284 - 3296
Assessment of myocardial contractility during a stress test is of high clinical value for the diagnosis and evaluation of cardiovascular diseases, especially coronary disease and heart failure. Both ends of this left-ventricular mimicking phantom (wall thickness of 15 mm) was then connected to polyvinyl chloride tubing by a pair of loosely attached steel clamps to a pulse duplicator (model #SD2001-1, ViVitro systems Inc., Victoria, BC, Canada). The complex, large, and rapid myocardial deformation during stress tests were also accurately imaged by the proposed strain estimator with close agreement with sonomicrometry.
Other Products Cited: Pulsatile Flow Simulation SuperPump Ultrasound Measurements
Visit SourceLuca Rosalia, Caglar Ozturk, Jaume Coll-Font, Yiling Fan, Yasufumi Nagata, Manisha Singh, Debkalpa Goswami, Adam Mauskapf, Shi Chen, Robert A. Eder, Efrat M. Goffer, Jo H. Kim, Salva Yurista, Benjamin P. Bonner, Anna N. Foster, Robert A. Levine, Elazer R. Edelman, Marcello Panagia, Jose L. Guerrero, Ellen T. Roche & Christopher T. Nguyen, Nature Biomedical Engineering volume 6, pages 1134–1147 (2022)
Advances in soft robotics have led to the development of high-fidelity simulators of pathophysiology for biomedical applications. An MCL was built using a pulsatile pump (SuperPump, ViVitro Labs), an anatomically accurate compliant silicone aortic vessel (E ≈ 1 MPa, United Biologics) connected to two adjustable compliance chambers (that is, ventricular, systemic), and a resistive valve. The models leverage haemodynamic mimicry and may facilitate the development of patient-specific applications. The models could also facilitate the clinical translation of treatments; in particular, a cohort of AS patients could be recapitulated in an in vivo porcine model, and new treatments could be evaluated preclinically.
Other Products Cited: Ex ViVo Simulation Flow Visualization Pulsatile Flow Simulation SuperPump Tissue Engineering
Visit SourceEmily N. Boice, David Berard, Jose M. Gonzalez, Sofia I. Hernandez Torres, Zechariah J. Knowlton, Guy Avital, Eric J. Snider, Bioengineering 2022, 9(7), 319
Central vascular access (CVA) may be critical for trauma care and stabilizing the casualty. However, it requires skilled personnel, often unavailable during remote medical situations and combat casualty care scenarios. Automated CVA medical devices have the potential to make life-saving therapeutics available in these resource-limited scenarios, but they must be properly designed. Unfortunately, currently available tissue phantoms are inadequate for this use, resulting in delayed product development. ...A SuperPump (ViVitro Labs, Victoria, BC, Canada) was used for generating pulsatile, cardiac mimicking arterial flow within the flow loop test platform (Figure 1D)... ...In conclusion, the tissue phantom model presented addresses a current testing gap for developing central vascular access medical devices. Troubleshooting is essential and having to rely on live, or even ex vivo, animal testing for evaluating a medical device with physiological mimicking fluid flow or pressure levels will slow device development...
Other Products Cited: Pulsatile Flow Simulation
Visit SourceEsmé 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: SuperPump
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