Pulse self-adaptive artificial heart

An artificial heart and self-adaptive technology, applied in the field of biomedical engineering, can solve problems such as increasing blood pump damage, hindering blood from flowing out of the heart, and increasing heart load during ejection, so as to improve pumping capacity, reduce clearance, and reduce load Effect

Active Publication Date: 2017-01-11
利为惠德无锡医疗科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, this will hinder the blood from flowing out of the heart, thereby increasing the heart load during the ejection period; on the other hand, the high-speed blood flow directly collides with the impeller, thereby increasing the blood damage of the blood pump.

Method used

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  • Pulse self-adaptive artificial heart

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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with an embodiment and accompanying drawings.

[0011] A pulsation adaptive artificial heart of the present invention is composed of a variable diameter blood pump sleeve 1, a leading vane 2, an asymmetric impeller 3, a rear guiding vane 4, and a sliding shaft 5, with the sliding shaft 5 as the axis, the leading The blade 2, the asymmetric impeller 3, and the rear guide vane 4 are sequentially arranged in the variable-diameter blood pump sleeve 1 from the inlet to the outlet of the variable-diameter blood pump sleeve. The front guide vane 2 , the rear guide vane 4 , and the sliding shaft 5 are fixed to the variable-diameter blood pump sleeve 1 , and the asymmetric impeller 3 can slide forward and backward on the sliding shaft 5 . And the inner diameter of the variable-diameter blood pump sleeve 1 gradually narrows from the outlet to the inlet; meanwhile, the hub of the asymmetric impeller bec...

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Abstract

The invention relates to a pulse self-adaptive artificial heart, belongs to the field of biomedical engineering, and relates to an artificial heart which can automatically adapt to heart pulsatile blood flow and reduces heart pump blood hindering. The artificial heart is composed of five parts, namely a diameter-variable blood pump sleeve, a front guide vane, an asymmetric impeller, a sliding shaft and a rear guide vane, wherein the front end of the diameter-variable blood pump sleeve is fixed with the front guide vane; the rear part of the diameter-variable blood pump sleeve is fixed with the rear guide vane; the sliding shaft is arranged between the front guide vane and the rear guide vane; the asymmetric impeller is arranged on the sliding shaft, and can slide forward and backward. The pulse self-adaptive artificial heart has the advantages that the traditional diameter-equivalent blood pump sleeve is replaced by the diameter-variable blood pump sleeve, the traditional symmetric impeller is replaced by the asymmetric impeller, and the impeller of the artificial heart can slide frontward and backward along the sliding shaft under the driving of heart blood flow, so that the automatic adaptability of the artificial heart on the heart pulsatile blood flow is improved, the hindering effect of blood pumping to blood during a systole period is reduced, and the treatment effect of the artificial heart is improved.

Description

technical field [0001] The invention relates to a pulsation adaptive artificial heart, which belongs to the field of biomedical engineering. Background technique [0002] Heart failure (heart failure) is a disease that seriously threatens human health. The most effective treatments for advanced heart failure are heart transplantation and artificial heart assistance. Since heart transplantation is far from meeting the needs of heart failure treatment, the market demand for artificial heart is increasing, so its market prospect is very promising. In order to reduce the damage to patients caused by traditional artificial hearts, new artificial hearts implanted in the aorta have become a research hotspot. For example: Patent 2015108365624 designs an artificial heart implanted in blood vessels. The artificial heart uses the impeller and blood pump sleeve structure of the traditional artificial heart to pump blood. Patent 2012800683178 designs an artificial heart implanted in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/12A61M1/10
CPCA61M60/135A61M60/205
Inventor 常俊
Owner 利为惠德无锡医疗科技有限公司
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