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In-vitro artificial heart blood pump

A technology of artificial heart and blood pump, applied in blood pump, prosthesis, medical science and other directions, can solve problems such as damage, and achieve the effect of reducing damage, ensuring strength, and reducing damage

Active Publication Date: 2017-01-18
北京米道斯医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the rotation of the impeller-type blood pump, the impeller will destroy effective blood components such as blood cells and platelets. In order to improve the success rate of treating patients, the artificial blood pump should further reduce the blood damage rate.

Method used

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  • In-vitro artificial heart blood pump
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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] Such as figure 1 and figure 2 The extracorporeal artificial heart blood pump shown includes: a casing 1, a liquid inlet pipe 2, an impeller 3, a gas storage device 11, a first electromagnet 12, a second electromagnet 13, a first permanent magnet 14, and a second permanent magnet 15 , rotor magnetic ring 16, motor stator ring 17, rear cover plate 31, blades 32 and air bag 33, the axial center position of the casing 1 is provided with a liquid inlet pipe 2, and the radial end surface of the casing 1 is provided with a liquid outlet integrated with the casing 1 Tube 2; an impeller 3 is arranged inside the casing 1;

[0026] The impeller 3 includes a rear cover 31 and 4-6 twisted blades 32 arranged on the end surface of the rear cover 31 , and the working surface of the twisted blades 32 is provided with an air bag 33 filled with gas.

[0027] The thickness of...

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Abstract

The invention discloses an in-vitro artificial heart blood pump, comprising a shell, an impeller and a driving device, wherein a liquid inlet pipe is arranged in the axial center of the shell, and a liquid outlet pipe integrated with the shell is arranged on the radial end face of the shell; the impeller is arranged in the shell; the impeller comprises a rear cover plate and 4-6 twisted blades arranged on the end face of the rear cover plate, and an airbag filled with gas is arranged on the working face of each twisted blade; the thickness of the airbag is 1 / 6-1 / 4 times thickness of each twisted blade; and the airbag completely wraps the end of the liquid inlet of each twisted blade. The technical aim of the invention is to provide an in-vitro artificial heart blood pump which can greatly reduce the damage to blood components such as blood cells and platelets in blood in the process of delivering blood, improve the protection performance on blood and improve the rescue survival rate.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an extracorporeal artificial heart blood pump. Background technique [0002] The artificial blood pump is a small pump with variable speed and variable capacity used to completely replace the work of the heart. Artificial blood pumps can be used to save the lives of dying patients. The incidence of cardiovascular diseases is increasing year by year. For the treatment of critical diseases such as cardiogenic shock and heart failure, artificial blood pumps can replace the function of the human heart for a long time, gaining a lot of treatment time for patients and improving the success of treatment. Rate. [0003] After a long period of development, the artificial blood pump usually uses a vane-type blood pump, which pressurizes the blood through an impeller. However, in the impeller-type blood pump, the impeller will destroy effective blood components such as blood cells and plat...

Claims

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Application Information

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IPC IPC(8): A61M1/10
CPCA61M2205/33A61M2205/3331A61M2205/8206A61M2205/8237A61M60/205A61M60/40A61M60/419A61M60/50
Inventor 林愿春
Owner 北京米道斯医疗器械有限公司
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