A pulsation-adaptive artificial heart

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

Active Publication Date: 2018-07-17
利为惠德无锡医疗科技有限公司
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A pulsation-adaptive artificial heart

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

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

[0011] A pulsation adaptive artificial heart of the present invention is composed of a variable-diameter blood pump sleeve 1, a front guide vane 2, an asymmetric impeller 3, a rear guide vane 4, and a sliding shaft 5. The sliding shaft 5 is used as the axis. 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 back and forth 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; at the same time, the hub of the asymmetric impeller becomes thinner with the inne...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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 treatment for advanced heart failure is heart transplantation and artificial heart assistance. Since heart transplantation is far from meeting the needs of heart failure treatment, the market demand for artificial hearts is increasing, so its market prospects are very promising. In order to reduce the damage of traditional artificial hearts to patients, a new type of artificial heart implanted in the aorta has become a research focus. For example: Patent 2015108365624 designs an artificial heart implanted in blood vessels. The artificial heart uses the impeller and blood pump sleeve structure of a traditional artificial heart to pump blood. Patent 2012800683178 designs an artificial heart implanted at the aor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap