Self-damping vibration-elimination magnetic levitation artificial heart blood pump rotor and preparation method thereof

A technology for suppressing vibration and artificial heart, applied in the field of medical equipment and rotor dynamics, can solve the problems of increasing the failure of rotor and stator magnetic suspension, reducing the reliability and comfort of the artificial heart system, increasing the heating of the magnetic suspension system, and reducing the magnetic suspension. Likelihood of failure, improved reliability and comfort, effect of vibration reduction

Active Publication Date: 2012-01-18
苏州同心医疗科技股份有限公司
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the frequency of the aforementioned interference is close to or equal to the resonance frequency of the rotor, the rotor will generate severe resonance, which will greatly increase the heating of the magnet

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
  • Self-damping vibration-elimination magnetic levitation artificial heart blood pump rotor and preparation method thereof
  • Self-damping vibration-elimination magnetic levitation artificial heart blood pump rotor and preparation method thereof
  • Self-damping vibration-elimination magnetic levitation artificial heart blood pump rotor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The present invention provides a magnetic levitation artificial heart blood pump rotor capable of self-damping and suppressing vibration, such as Figures 1 to 3 As shown, it includes an annular rotor body 1 suspended in the middle of the blood pump through a magnetic levitation system. The rotor body 1 rotates around its central rotating shaft 2. The rotor body 1 penetrates through the rotor body 1 along its axial direction. A cylindrical hollow part 4 is provided on the axial end surface, and at least one damping block 5 is arranged in the hollow part 4, preferably 6-12 damping blocks 5.

[0034] In order to prevent friction and interference between the damping block 5 and the inner surface of the hollow part 4, that is, the outer end surface 5 of the rotor, the outer peripheral surface 51 of the damping block 5 is a curved surface, and the damping block 5 and the first side surface of the rotor body 1 12 are connected by the elastic connector 3 that can be twisted ax...

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 discloses a self-damping vibration elimination magnetic levitation artificial heart blood pump rotor and a preparation method thereof, which comprises a ring-shaped rotor body which is suspended at the middle of a blood pump through a magnetic levitation system, wherein the rotor body rotates around a rotating shaft which is positioned at the middle of the rotor body, the rotor body is internally provided with a hollow part, at least one damping block is placed in the hollow part, the damping block is connected with the rotor body through an elastic connector, and the hollow part is filled with damping liquid. The invention has the main beneficial effects that as the damping block and the damping liquid are arranged, damping can be provided for the swinging and the vibration of the rotor in the interior of the rotor, accordingly, the vibration of the blood pump rotor, caused by various imbalances, can be greatly reduced, the heat of the magnetic levitation system can be reduced, the scraping between the blood pump rotor and a stator can be reduced, the probability of failure of the magnetic levitation can be greatly reduced, and further, the reliability and the comfortableness of an artificial heart system can be improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to an implantable artificial organ manufacturing technology, in particular to a rotor of an artificial heart blood pump using magnetic levitation technology. The invention also relates to the field of rotor dynamics, in particular the suppression of vibrations in the event of possible resonance of the rotor. Background technique [0002] The rapid development of the artificial heart is mainly due to the rapid development of its main component, the blood pump. Now, the magnetic levitation blood pump has become an important technology in the new generation of artificial heart. In order to meet the requirements of implantability, the magnetic levitation magnetic circuit of the artificial heart is usually optimized very carefully. The blood pump suspends the impeller through the magnetic levitation system, and the impeller is directly permanent magnetized. The stator of the blood...

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
IPC IPC(8): A61M1/12
Inventor 尹成科陈琛
Owner 苏州同心医疗科技股份有限公司
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