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Bearing free, engine free and axle free complete artificial heart pump

An artificial heart and motor-free technology, applied in the field of biomedical engineering, can solve the problems of non-active control, low integration, poor reliability, etc., and achieve the effect of no mechanical friction, low blood destructiveness, and high reliability

Inactive Publication Date: 2008-04-23
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of non-active control, poor reliability, thrombus, hemolysis and low integration degree existing in the existing artificial heart blood pump, and to provide a blood pump with full degree of freedom suspension, high portability and integrated structure. Pump

Method used

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  • Bearing free, engine free and axle free complete artificial heart pump
  • Bearing free, engine free and axle free complete artificial heart pump
  • Bearing free, engine free and axle free complete artificial heart pump

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Embodiment Construction

[0014] Processed and commercially available components are assembled into the overall device of the invention according to technical design requirements. All parts of the device are connected by conventional techniques. Wherein, the C-C plane of the blood pump is the largest section, and the spherical pump body 2 can be opened along this section for assembly. The funnel-shaped blood pump lumen 17 and the cylindrical blood pump lumen 18 are connected at this section. Column impeller 5 and cone vane 4 are made of titanium alloy. Column blade 6 adopts permanent magnetic material. The conical impeller 3 and the axially controlled disk 9 are made of ferromagnetic materials. The inner surfaces of the blood inlet 1, the funnel-shaped blood pump inner chamber 17, the cylindrical blood pump inner chamber 18 and the blood outlet 12 and the surface of the impeller made of titanium alloy are sprayed with common polyurethane artificial vascular material. attached figure 1 The middle ...

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Abstract

The invention provides a bearing free, engine free and axle free complete artificial heart blood pump, wherein the blood pump comprises two symmetrical cardiac sinus blood pumps with the same structure, which connects in sequence the blood intake port, the funnel type blood pump inner chamber, the cylinder type blood pump inner chamber with the blood flow exit. The interconnected awl blade wheel and the column blade wheel placed into the inner chamber of the funnel type blood pump inner chamber and the cylinder type blood pump inner chamber. The outer walls of the funnel type blood pump inner chamber and the cylinder type blood pump inner chamber are provided with a plurality groups of coils.

Description

technical field [0001] The invention relates to an artificial heart blood pump that actively controls suspension with 5 degrees of freedom and rotational speed with 1 degree of freedom, and belongs to the technical field of biomedical engineering. Background technique [0002] At present, a variety of artificial hearts have been used clinically, most of which are centrifugal blood pumps of ventricular assist devices. The blood pump motor and the magnetic coupling disc are all in the typical structure of this kind of blood pump, so the volume of the blood pump is increased, and the portability of the blood pump is reduced. In the patent document with the application number 02109770.4, since the radial bearing of the blood pump adopts a passive magnetic bearing, the impact resistance and reliability of the radial direction of the blood pump are not as high as that of the active support; the fluid inlet is at the blade position of the impeller, After the blood flows in, it dir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/10
Inventor 常宇吴水才刘有军
Owner BEIJING UNIV OF TECH
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