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Adaskin A.V.,Biosoft M Ltd. | Dozorov K.N.,Biosoft M Ltd. | Stitsenko A.N.,Biosoft M Ltd. | Filatov I.A.,Biosoft M Ltd. | And 2 more authors.
Biomedical Engineering | Year: 2011

Development of a control unit and power source for an implantable assisted circulation pump is discussed. The device for left ventricle assistance was developed in the Shumakov Federal Scientific Center for Transplantology and Artificial Organs, Moscow State Institute of Electronic Engineering, and BIOSOFT-M, Ltd. The device provides a basis for a safe portable pacemaker meeting the requirements of extracorporeal circulation systems (ECS). The aspects of engineering, structural, and software support of the system are discussed. An implanted axial pump (IAP) of the ECS for artificial left cardiac ventricle (ALCV) is considered. © 2011 Springer Science+Business Media, Inc. Source


Dozorov K.N.,Biosoft M Ltd. | Itkin G.P.,Shumakov Federal Scientific Center for Transplantology and Artificial Organs | Adaskin A.V.,Biosoft M Ltd.
Biomedical Engineering | Year: 2011

Control of rotor blood pumps by rotor rotation rate should be adapted to the requirements of the patient's body. Physiological control of rotor blood pumps is based on information about the blood circulation system. The sensors should not contact the patient's body fluids, so an indirect control system is suggested in this work. The system is based on information about pump current and rotor rotation rate. The indirect control system gives important information about parameters of the blood circulation system and the blood pump. © 2011 Springer Science+Business Media, Inc. Source


Mal'gichev V.A.,DONA&M Company | Nevzorov A.M.,DONA&M Company | Selishchev S.V.,Moscow State Institute of Electronic Engineering | Itkin G.P.,Shumakov Federal Scientific Center for Transplantology and Artificial Organs
Biomedical Engineering | Year: 2011

An approach to the design of bearing units for an axial blood pump is suggested in this work. The design of the system places a limitation on the time of continuous pump operation. Antifriction materials for triboengineering elements were selected, and aspects of biological compatibility of such materials are discussed. The tribological elements of the system were tested in vivo and in vitro. © 2011 Springer Science+Business Media, Inc. Source


Itkin G.P.,Shumakov Federal Scientific Center for Transplantology and Artificial Organs | Selishchev S.V.,Moscow State Institute of Electronic Engineering
Biomedical Engineering | Year: 2011

The history of development of rotor pumps for artificial and assisted circulation is discussed in this work. Advantages of rotor pumps over pulsating pumps in implanted systems are considered: minimal size, energy consumption, and cost. Major directions in the development of rotor pumps include bearing elements, which determine pump service life. Axial pumps are considered in more detail. Commercially available axial pump models used in clinics are considered in more detail. © 2011 Springer Science+Business Media, Inc. Source


Vostrikov V.A.,Moscow State University | Gorbunov B.B.,Moscow State Institute of Electronic Engineering | Gusev A.N.,Moscow State Institute of Electronic Engineering | Gusev D.V.,Moscow State Institute of Electronic Engineering | And 6 more authors.
Biomedical Engineering | Year: 2011

The efficiencies of four bipolar pulses with different times and shapes were tested. The criterion of threshold energy eliminating 20-sec fibrillation in domestic pigs was used for this purpose. The efficiencies of trapeziform, rectilinear, and quasi-sinusoidal Gurvich-Venin bipolar defibrillation pulses were compared. The shape and time of the pulses corresponded to 100-Ω load regardless of the pig's chest resistance (high-resistance model). The Gurvich-Venin model was statistically more effective than the trapeziform model and the rectilinear pulse model. The Gurvich-Venin pulse was generated using a digital defibrillator with signal processor. This technology is implemented in imPulse and imPulse PRO defibrillators. © 2011 Springer Science+Business Media, Inc. Source

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