An Electrically-Driven Rotary Blood Pump Based on the Wankel Engine

Mitsui, Norimasa; Havlik, P.; Mesana, Thierry G.; Trinkl, J.; Tourres, Jean-Luc; Demunck, Jean-Luc; Candelon, Bernard; Montiès, J R

doi:10.1007/978-4-431-67023-0_37

Cited by 6 publications

(6 citation statements)

References 1 publication

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“…The Wankel type blood pump shown in Fig. 3, which creates a semipulsatile flow (4,12), was used for the in vivo experiment, and the hemodynamic influence was studied. The pump is composed of an elliptically shaped rotor, an eccentric shaft, a rotor case, and 2 rotor covers.…”

Section: Methodsmentioning

confidence: 99%

Study of Left Ventricular Bypass Using Wankel Type Semipulsatile Blood Pump

et al. 1998

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The influence of the Wankel type semipulsatile left ventricular assistance on hemodynamics was investigated with a computer simulation and an animal experiment. A simulation circuit was constructed to express the circulatory system. A current source was added to create a semipulsatile blood pump. The left and right ventricles were replaced by variable compliances. Left heart failure was simulated by decreasing the amount of compliance change of the left ventricle. Under the condition of heart failure when semipulsatile assist flow increased, the mean aortic pressure (AoP), tension time index (TTI), and diastolic pressure time index (DPTI) increased, and the cardiac output, pulse pressure (PP), and pulsatility indicator (PI) decreased. In an animal experiment, a Wankel type blood pump was used in a calf. With the increase of the assist flow, AoP curves became less pulsatile, and PP and PI decreased in accordance, which was predicted by the numerical simulation.

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Section: Methodsmentioning

confidence: 99%

Study of Left Ventricular Bypass Using Wankel Type Semipulsatile Blood Pump

et al. 1998

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“…The same authors (2010) studied the materials for the manufacture of bicornous rotor pumps and confirmed that Ti 6 Al 4 V has good biocompatibility [16]. This research group [13][14][15][16][17] has made continuous efforts toward the development of an angular rotor pump as an artificial heart, and their work shows that angular rotor pumps exhibit high pulsation and are only suitable for low-speed and small-scale applications, such as artificial hearts. Wan et al (2014) simulated the internal flow field of a bicornous rotor pump, finding that such a pump has abundant three-dimensional vortex structures, even in the laminar flow state, and first proposed the use a bicornous rotor pump as a microreactor and a micromixer [21].…”

Section: Introductionmentioning

confidence: 98%

“…In a working cycle, the multichamber structure can independently generate multivolume periodic changes. Wankel engines have good capacity characteristics and can generate high specific power and high vacuum and are therefore used in positive-displacement compressors [6,7] and expanders [8][9][10][11], especially as rotary positive-displacement pumps, not only retaining the structural advantages of Wankel engines but also exerting the advantages of fewer parts, small size, minimal vibration, and compact structure [12][13][14][15][16][17][18]. Therefore, Wankel pumps are applied in the fields of medical treatment, industry, water and hydropower, etc.…”

Section: Introductionmentioning

confidence: 99%

“…Reverse application of Wankel engines means that the power that produces the volume change comes from outside, and the volume change is used to push the fluid to do work. Existing rotary positive-displacement pump designs for reverse applications of Wankel engines are limited to bicornous rotor pumps (with a two-lobe inner envelope) [12][13][14][15][16][17][18][19][20][21] and triangular rotor pumps (with a three-lobe inner envelope) [22][23][24]. Monties et al (1990) first proposed the application of a bicornous rotor pump based on Wankel geometry to an artificial heart [14].…”

Section: Introductionmentioning

confidence: 99%

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Design and Experimental Study of a Tetragonal Rotor Pump Based on Wankel Geometry

Gui

Zhou

Zeng

et al. 2022

Sensors

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Wankel pump designs have not been fully established, with existing designs limited to bicornous rotor pumps and triangular rotor pumps. Here, on the basis of Wankel geometry, we present a tetragonal rotor pump with a three-lobe epicycloid and its conjugate envelope as chamber and rotor profile. First, the design method and basic working principle of the pump are introduced. Four groups of prototypes with different shape factors were manufactured, and their flow and pressure characteristics were experimentally studied. Numerical study showed that the flow rate irregularity of the pump is lower than that of existing Wankel pumps. Finally, the feasibility the pump for mixing applications was verified by a flow field observation experiment. The work in this paper provides a new type of rotary displacement pump design, representing an study of reverse application of a Wankel engine structure.

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“…The application of the Wankel drive principle in a rotary piston pump for an artificial heart was first proposed by Verbiski et al [14]. Norimasa et al [15,16] also conducted an experimental study on an artificial heart based on the Wankel principle. Wappenschmidt et al [17] reviewed rotary piston artificial hearts.…”

Section: Introductionmentioning

confidence: 99%

Design of a Wankel pump constant pressure grouting system based on Fuzzy PID Method

Wang²,

Zhang

et al. 2023

Preprint

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In underground engineering disaster management, existing grouting devices are mainly plunger pumps with large output pulses, which easily cause secondary damage to the surrounding rock of tunnels. Using a rotary piston Wankel pump, an intelligent dual-liquid grouting automation control system (SDUZJ) was developed based on the Fuzzy-PID composite control method to achieve steady output pressure control. Fuzzy control was used when the target and current pressure difference was large to improve self-adaptability and response time. Conversely, PID controller was used when the difference was small to eliminate static differences for steady-state regulation. Combined with the human–computer interaction interface of the computer, automatic control of dual-liquid grouting, alarm recording, real-time monitoring curve, system data setting, and historical data query were realized. A constant-pressure fracturing grouting model experiment with three-axis stress was performed using the proposed system. The Fuzzy control mode was selected to rapidly increase the grouting pressure and flow (pressurization stage) and adjust the grouting pressure to the target value (fracture initiation stage) through rapid rotation of the stepper motor. In the pressure stabilization and fracturing expansion stage, the PID control mode was used for grouting pressure and flow stabilization. Therefore, the Fuzzy-PID pressure stabilization grouting control was realized.

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An Electrically-Driven Rotary Blood Pump Based on the Wankel Engine

Cited by 6 publications

References 1 publication

Study of Left Ventricular Bypass Using Wankel Type Semipulsatile Blood Pump

Study of Left Ventricular Bypass Using Wankel Type Semipulsatile Blood Pump

Design and Experimental Study of a Tetragonal Rotor Pump Based on Wankel Geometry

Design of a Wankel pump constant pressure grouting system based on Fuzzy PID Method

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