Magnetic driving device and electromagnetic drive pump

Abstract

The invention relates to a magnetic driving device and an electromagnetic drive pump. The electromagnetic drive pump comprises a spiral wire conduit, a pump body, magnetic blocks, a first valve group, a second valve group and a control circuit, wherein the spiral wire conduit which is in symmetrical step shape comprises plural groups of coil components which are stacked in a staggered manner; the control circuit controls the time sequence of currents leading to the different coil components, so that the plural groups of coil components generate superimposed magnetic fields, which correspond to the magnetic blocks and have opposite magnetic poles, in the spiral wire conduit; and the magnetic blocks perform linear and reciprocating motion along the spiral wire conduit in the superimposed magnetic fields. According to the electromagnetic drive pump, the alternately changing magnetic fields can be generated in a cavity of the spiral wire conduit, the magnetic blocks in the pump body perform reciprocating motion under the action of the magnetic fields, simulating cardiac impulse principle, and continuously perfused pumped blood of a centrifugal pump can be prevented from damaging human tissue organs and brains.

Description

technical field [0001] The invention belongs to the field of electromagnetism, and in particular relates to a magnetic force driving structure. Background technique [0002] Extracorporeal membrane oxygenation (exteacorporeal membrane oxygenation, ECMO) is a kind of adjuvant therapy which takes extracorporeal circulation system as its basic equipment and utilizes extracorporeal circulation technology for operation and management. ECMO is to introduce the venous blood in the body to the outside of the body for membrane oxygenation, and then inject it into the human body by the ECMO blood pump. Clinically, ECMO technology is mainly aimed at patients with respiratory insufficiency and cardiac insufficiency. Through extracorporeal circulation, the patient's heart and lungs can be fully rested, and the patient's hypoxemia can be effectively improved. As the core component of the ECMO system, the blood pump determines the development of ECMO technology to a certain extent. [00...

AI Technical Summary

Problems solved by technology

The current third-generation magnetic levitation centrifugal pump adopts magnetic levitation technology, which further reduces the hemolysis of the blood pump. At the same time, the magnetic levitation technology avoids direct contact between the mechanical structure and the blood, thereby reducing the incidence of microemboli, but its disadvantages are: Centrifugal pumps provide continuous perfusion when pumping blood, which has caused damage to human tissues, organs and brain to a certain extent

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