An Axial-Flow Magnetic Suspension Blood Pump with Pulse Speed Regulation
An axial flow and magnetic levitation technology, applied in the field of medical devices, can solve problems such as the lack of solutions, the inability of blood pumps to achieve pulsation, etc., and achieve the effect of reducing blood stagnation areas
Active Publication Date: 2020-03-31
山东恒心医疗器械有限公司
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Problems solved by technology
[0005] However, none of the blood pumps in the prior art can achieve pulsation. In the prior art, there is still no effective solution to the problem of realizing the pulsation of the blood pump.
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[0027] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0028] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
[0029] As introduced in the background technology, there is a deficiency in the prior art that blood pumps canno...
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The invention discloses an axial-flow type magnetic suspension blood pump with pulsating speed regulating characteristics. The problem that pulsation cannot be realized by a blood pump in the prior art is solved. By regulating the rotating speed of a motor, the pulse characteristics of blood flow can be achieved, and the incidence of bleeding and thromboembolism can be reduced. According to the technical schemes, the axial-flow type magnetic suspension blood pump comprises a pump shell; a front guiding blade is arranged at an inlet end of blood in the pump shell, and a rear guiding blade is arranged at an outlet end of blood in the pump shell; an impeller is arranged between the front guiding blade and the rear guiding blade in the axial direction; bearings are arranged in the axial direction and the radial direction of the impeller for maintaining radial and axial suspension of the impeller; a motor is arranged at the outer part, corresponding to the impeller, of the pump shell and is connected with a rotating speed controlling device; and the rotating speed controlling device regulates and controls the rotating speed of the motor to form the pulsation characteristics.
Description
technical field [0001] The invention relates to the technical field of medical devices, in particular to an axial-flow magnetic levitation blood pump with the characteristic of pulsation speed regulation. Background technique [0002] At present, the incidence of heart failure is increasing exponentially year by year. When various heart diseases reach the advanced stage, only heart transplantation can save lives. Due to the serious shortage of heart donors, most patients die of extreme heart failure without waiting for a donor. Artificial heart pump, also known as blood pump, is a device that helps the heart to pump blood. Installing a blood pump can prolong the life of the patient and wait for the donor; the blood pump compensates or replaces the function of the heart, which is conducive to the restoration of myocardial metabolism and nutritional balance , promote the recovery of heart function, and play an unparalleled role in other methods; for a heart that cannot fully r...
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IPC IPC(8): A61M1/10
CPCA61M60/205A61M60/422A61M60/50A61M60/82
Inventor 刘淑琴刘洪涛边忠国
Owner 山东恒心医疗器械有限公司