A centrifugal left ventricular assist device

An auxiliary device and left ventricular technology, applied in other medical devices, hypodermic injection devices, suction devices, etc., can solve problems such as hemolysis and thrombus, increased vibration of the device, and occurrence in the pump, to prevent hemolysis and thrombus, small size Effect

Inactive Publication Date: 2018-10-09
INNER MONGOLIA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Centrifugal impeller pumps have been widely used in animal experiments and clinics, but due to the wear of the mechanical bearings, the vibration of the device is aggravated, and hemolysis and thrombus appear in the pump

Method used

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  • A centrifugal left ventricular assist device
  • A centrifugal left ventricular assist device
  • A centrifugal left ventricular assist device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The present invention will be described in further detail below in conjunction with specific examples, but the present invention is not limited to the following examples.

[0039] as attached figure 1 As shown, a centrifugal left ventricular assist device includes a pump body, a blood flow inlet 1 and a blood flow outlet 2 arranged on the pump body.

[0040] as attached figure 2 As shown, the pump body includes a pump casing, an inner cavity 3 formed on the pump casing, an outer cavity 4 formed on the pump casing and outside the inner cavity 3, a stator 5 arranged in the outer cavity 4, and a The rotor rotates around its own axis under the action of the stator 5, and a plurality of blades 6 connected to the rotor and capable of rotating with the rotation of the rotor. The blades 6 have an inclination angle, and the blood flow inlet 1 and the blood flow outlet 2 are respectively connected to the inner The cavity 3 is connected. The depth of the inner cavity 3 is grea...

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PUM

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Abstract

The invention relates to a centrifugal left ventricle assisting device which comprises a pump body and a blood flow inlet and a blood flow outlet in the pump body, wherein the pump body comprises a pump shell, an inner cavity formed on the pump shell, an outer cavity formed on the pump shell and positioned outside the inner cavity, a stator arranged in the outer cavity, a rotor capable of rotating around the axis thereof under the effect of the stator and multiple blades connected with the rotor and capable of rotating along with the rotation of the rotor; the blade has an inclination angle; the rotor and the blades are suspended in the inner cavity; and the blood flow inlet and the blood flow outlet are communicated with the inner cavity respectively. In the invention, through structural improvement, the centrifugal left ventricle assisting device has the advantages of high efficiency, small volume, prevention of hemolysis and thrombus and lasting patient support.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a centrifugal left ventricular assist device. Background technique [0002] Heart disease is the second largest killer of human death, and cardiac blood supply failure is a sign of heart disease deterioration, directly threatening the lives of patients. According to statistics, the number of patients with heart failure in the world is increasing at an astonishing rate of 50 million per year, and 10 million of them die due to heart failure. Although heart transplantation can improve the survival rate of patients with heart failure, a large number of heart disease patients have lost their chances of survival due to the shortage of donor hearts. Ventricular assist devices can provide the blood circulation flow normally required by the human body for patients with cardiac insufficiency, and alleviate the shortage of heart donors to a large extent. Centrifugal impeller pumps have been...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/12
CPCA61M2205/02A61M2205/04A61M60/148A61M60/205
Inventor 冯海全王东韩青松李治国王志国
Owner INNER MONGOLIA UNIV OF TECH
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