Prospects of Disk Pump for Mechanical Circulatory Support in Cardiac Surgery (Review)

Чернявский, А. М.; Фомичев, А. В.; Рузматов, Т. М.; Медведев, А. Е.; Приходько, Ю. М.; Фомин, В. М.; Фомичев, В. В.; Чехов, В. П.

doi:10.15825/1995-1191-2016-3-68-73

Cited by 4 publications

(4 citation statements)

References 6 publications

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“…Chernyavskiy, A.M. [96,97] pointed out that one of the new research directions was the viscous friction disc pump for liquid transportation based on the Tesla pump principle, put forward the shortcomings of the current research based on the published data, and introduced the current model of disc pump. The test results showed that the pressure characteristics of the disc pump could provide necessary blood circulation parameters.…”

Section: Efficiency = 40%mentioning

confidence: 99%

Research on Energy-Efficient Disc Pumps: A Review on Physical Models and Energy Efficiency

Pei,

Liu,

Ooi

2023

Machines

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Disc pumps have obvious advantages in dealing with difficult-to-pump media. Energy efficiency and sustainable energy management are important topics with regard to reducing costs and promoting carbon neutrality. Though the concept of the disc pump was proposed in the 1850s, development was slow and limited by its initial model. However, with the development of industries such as petrochemicals and food, the efficient pumping of difficult-to-pump media is much needed, but facing challenges. Therefore, research on energy-efficient disc pumps is particularly important moving forward. In this paper, the available information from the open literature about the research and development of the disc pump will be thoroughly reviewed. It focuses on the historical development, energy efficiency and physical model application of the disc pump. The review ends with a proposal for the direction of future development, and in this aspect, it is proposed that the energy efficiency prediction model based on velocity slip theory, the energy management system based on multi-scenarios and the design method based on energy conversion theory are important. The latest achievements in energy conversion are given. This review also provides a new perspective for the development of energy-efficient disc pumps.

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Section: Efficiency = 40%mentioning

confidence: 99%

Research on Energy-Efficient Disc Pumps: A Review on Physical Models and Energy Efficiency

Pei,

Liu,

Ooi

2023

Machines

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“…The studies of hemolysis in rotary pumps of ABCS showed that the greatest damage to the blood is observed in centrifugal pumps [1]. At the same time, the authors point out that the damage is mechanical and is caused by direct contact between the blood elements and the pump rotor due to the lack of boundary layers in the rotor.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the development of Artificial Blood Circulation System (ABCS), the problem of mechanical haemolysis in the ABCS appeared [1], particularly, in their rotary pumps: axial, centrifugal and disk-shaped ones, see Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

Haemolysis in Centrifugal Pump of Artificial Blood Circulation System

Bobkov¹

2020

Proceedings of the International Conference “Health and Wellbeing in Modern Society” (ICHW 2020)

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The article deals with possible causes of increased haemolysis in the centrifugal pump of the artificial blood circulation systems. One of the hydrodynamic reasons is indicated -a strong vortex formation of the blood flow inside the pump impeller, which occurs when the impeller rotates. This factor is a natural demonstration of the mechanism of converting the mechanical energy of the impeller rotation into the pressure of the pumped blood flow.

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“…According to their parameters: blood volume flow 3...6 liter per minute and the size of the impeller, these pumps are classified as low-flow, small-sized centrifugal pumps [6][7][8][9]. As a rule, their impeller does not contain a sleeve protruding from the impeller inlet, as is seen in industrial pumps.…”

Section: Introductionmentioning

confidence: 99%

Estimating the optimal value of diameter of the inlet to the impeller of a centrifugal blood pump

Bobkov

2023

E3S Web Conf.

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The article is devoted to the optimization of the design of the inlet zone of a centrifugal blood pump. One of the disadvantages of such pumps is the generation of turbulence in the flow of the pumped fluid, which contributes to high blood hemolysis. The reason for turbulence lies in a combination of geometric and kinematic factors, in particular, a 90 degree turn of the flow in the inlet part of the impeller channels and a high circumferential speed of rotation of its channels. The hydrodynamic consequence of this is an increase in the hydraulic resistance of the pump flow path and separation of the boundary layer from the streamlined surface. As a result, the non-uniformity of the flow velocity field increases and separation flow zones appear, stimulating vortex formation and turbulence of the blood flow. The article provides the derivation of an equation for calculating the optimal diameter of the impeller D1, which does not have a bushing in the inlet. This design is typical for centrifugal blood pumps. As a criterion for the optimal value of D1, the minimum level of hydraulic resistance in the inlet zone of the pump was considered. Based on the derived formula, a graph of D1 values was constructed in the range of parameters: blood volume flow 3…6 liters per minute, speed 4000-10000 rpm. With an increase in blood flow and a decrease in the number of revolutions of the impeller, the diameter of the inlet to the impeller must be increased from 6.4 mm to 13.8 mm.

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Prospects of Disk Pump for Mechanical Circulatory Support in Cardiac Surgery (Review)

Cited by 4 publications

References 6 publications

Research on Energy-Efficient Disc Pumps: A Review on Physical Models and Energy Efficiency

Research on Energy-Efficient Disc Pumps: A Review on Physical Models and Energy Efficiency

Haemolysis in Centrifugal Pump of Artificial Blood Circulation System

Estimating the optimal value of diameter of the inlet to the impeller of a centrifugal blood pump

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