Rotary piston blood pumps: past developments and future potential of a unique pump type

Wappenschmidt, Johannes; Autschbach, R.; Steinseifer, Ulrich; Schmitz‐Rode, Thomas; Margreiter, Raimund; Klima, G.; Goetzenich, Andreas

doi:10.1080/17434440.2016.1207522

Cited by 13 publications

(9 citation statements)

References 24 publications

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“…The broad classification framework for the VADs is shown in Figure 3. The VADs are mostly categorized on the basis of outflow characteristics which have been discussed in detail in the literature (44,50,51). The rotary blood pumps, being small in size, easy to implant, and have low rates of infections, are preferred in VADs (52).…”

Section: Vads Classificationsmentioning

confidence: 99%

Analysis of rotary ventricular assist devices using CFD technique—A Review

Shukla

Mishra

Tewari

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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With the increasing focus on reducing deaths because of heart ailments, considerable emphasis has been directed toward the development of ventricular assist devices (VADs) that work on the principle of mechanical pumps for supporting an infirm heart. The VADs are used primarily to assist the left ventricle, but their use has been extended for supporting the right ventricle as well as for supporting both ventricles simultaneously. In this connection, computational fluid dynamics (CFD) has evolved as an efficient technique for the design, development, evaluation, and optimization of VADs, enabling the prediction of operational characteristics of VADs as well as detailed global and local flow characteristics for an extensive set of working environments even before the manufacture and use of the actual device. CFD techniques yield valuable insight into the VADs’ effectiveness that enhances its operational behavior and decreases the risk associated with the use of the device, and at the same time decreases the manufacturing lead time and costs associated with the device. CFD has been quite beneficially used for the performance evaluation of VADs, but it still needs further development as hemolysis and thrombosis models cannot be easily integrated with the flow simulations. This review article presents abrief introduction to rotary VADs with a primary focus on the current status of CFD analysis of axial VADs, which provide the most suitable methods for computational design and optimization of VADs. It also identifies critical knowledge gaps and outlines the hematological models and the difficulties encountered in integrating them into CFD. Finally, future work based on the current scenario is also included.

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Section: Vads Classificationsmentioning

confidence: 99%

Analysis of rotary ventricular assist devices using CFD technique—A Review

Shukla

Mishra

Tewari

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…There is a continuous stream of new devices and modifications to existing technologies with no lack of new solutions being reported in recent years. The undulating membrane reproducing blood movement, 11 toroidal flow pump, 12 helical flow device, 13 rotary piston blood pump, 14 shrouded impeller design, 15 and cannulation techniques 16 are all attempting to demonstrate new possibilities and potential benefits over the "classic" centrifugal pumps and existing solutions. Future controller solutions are seeking to enable remote hospital monitoring, more intuitive system interface, optimized control solutions, 17 pump speed modulation, 18 and the potential to use a single controller to automatically control a biventricular assist device configuration.…”

Section: Progress In Mechanical Circulatory Support: Challenges and Omentioning

confidence: 99%

Human Fitting Studies of Cleveland Clinic Continuous-Flow Total Artificial Heart

et al. 2015

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Implantation of mechanical circulatory support devices is challenging, especially in patients with a small chest cavity. We evaluated how well the Cleveland Clinic continuous-flow total artificial heart (CFTAH) fit the anatomy of patients about to receive a heart transplant. A mock pump model of the CFTAH was rapid-prototyped using biocompatible materials. The model was brought to the operative table, and the direction, length, and angulation of the inflow/outflow ports and outflow conduits were evaluated after the recipient's ventricles had been resected. Thoracic cavity measurements were based on preoperative computed tomographic data. The CFTAH fit well in all five patients (height, 170 ± 9 cm; weight, 75 ± 24 kg). Body surface area was 1.9 ± 0.3 m2 (range, 1.6-2.1 m2). The required inflow and outflow port orientation of both the left and right housings appeared consistent with the current version of the CFTAH implanted in calves. The left outflow conduit remained straight, but the right outflow direction necessitated a 73 ± 22 degree angulation to prevent potential kinking when crossing over the connected left outflow. These data support the fact that our design achieves the proper anatomical relationship of the CFTAH to a patient's native vessels.

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“…Rotary piston pumps offer an alternative pumping principle which may have the potential to overcome limitations of current technologies: They may be smaller, more durable (no membrane and valves), more efficient than pulsatile devices and concomitantly provide pulsatile flow with a potentially less traumatic pumping principle than RBPs. However, their actuation and bearing concepts are usually complex [8]. Theoretical derivations suggest that, if the development of reliable drives and bearings for these pump technology succeeds, rotary piston blood pumps may become a promising alternative [8].…”

Section: Introductionmentioning

confidence: 99%

A Novel Pumping Principle for a Total Artificial Heart

Bierewirtz¹,

Narayanaswamy²,

Giuffrida³

et al. 2023

Preprint

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Objective: Total artificial hearts (TAH) are used as a temporary treatment for severe biventricular heart failure. Long-term cardiac replacement is hampered by limited durability and complication rates, which may be attributable to the modus operandi of state-of-the-art pumping systems. The aim of this study was to assess the feasibility of a novel valveless pumping principle for a durable pulsatile TAH (ShuttlePump). Methods: With a rotating and linearly shuttling piston within a cylindrical housing with 2 in- and outlets, the pump features only one single moving part and delivers pulsatile flow to both systemic and pulmonary circulation. The pump and actuation system were designed iteratively based on analytical and in silico methods, utilizing finite element methods (FEM) and computational fluid dynamics (CFD) Pump characteristics were evaluated experimentally in a mock circulation loop mimicking the cardiovascular system, while hemocompatibility related parameters were calculated numerically. Results: Pump characteristics cover the entire required operating range for a TAH (2.5 - 9L/min at 50 - 160mmHg arterial pressures) at stroke frequencies of 1.5 - 5Hz while balancing left and right atrial pressures. FEM analysis showed a mean overall copper losses of 8.84W, resulting in local blood temperature rise of < 2k. The CFD results of normalized index of hemolysis was 3.57 mg/100L and 95% of the pumps blood volume was exchanged after 1.42s. Conclusion: This study indicates feasibility of a novel pumping system for a TAH with numerical and experimental results substantiating further development of the ShuttlePump.

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Rotary piston blood pumps: past developments and future potential of a unique pump type

Cited by 13 publications

References 24 publications

Analysis of rotary ventricular assist devices using CFD technique—A Review

Analysis of rotary ventricular assist devices using CFD technique—A Review

Human Fitting Studies of Cleveland Clinic Continuous-Flow Total Artificial Heart

A Novel Pumping Principle for a Total Artificial Heart

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