Surgical intracardiac implanted blood pump

一种血液泵、心脏内的技术，应用在医疗器械领域，能够解决很难满足抗溶血和抗血栓等性能要求等问题，达到提高血液相容性、提高抗溶血和抗血栓、成分简单的效果

Inactive Publication Date: 2016-11-09
傅风荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing pump body and impeller materials have been difficult to meet performance requirements such as anti-hemolysis and anti-thrombosis

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A blood pump used in an operation heart. The blood pump includes a pump body and an impeller in the pump body. The pump body includes: a cast titanium alloy pump body, a zirconia-based ceramic material layer on the outer surface of the pump, and an impeller on the inner surface of the pump. The titanium carbide-based ceramic material layer, the impeller includes a cast titanium alloy impeller body and a titanium nitride-based ceramic material layer outside the impeller body,

[0023] It is characterized in that the chemical composition of the cast titanium alloy pump body is: Zn: 14.5%, Al: 6.5%, Fe: 4.5%, Si: 1.5%, Mg 1.5%, Ni 0.75%, Cu: 0.55%, Cd: 0.25% , Zr: 0.075﹪, Ce: 0.035﹪, Mn: 0.055﹪, V: 0.065﹪, B: 0.085﹪, the balance is Ti and unavoidable impurities;

[0024] The preparation method of the cast titanium alloy pump body includes the following steps: preparing the alloy according to the above ratio, melting and pouring the alloy material: the melting temperature i...

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PUM

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Abstract

The invention discloses a surgical intracardiac blood pump which comprises a pump and an impeller. The impeller is arranged in the pump, the pump comprises a cast titanium alloy pump, a zirconium oxide ceramic material layer and a titanium carbide ceramic material layer, the zirconium oxide ceramic material layer is arranged on the outer surface of the pump, and the titanium carbide ceramic material layer is arranged on the inner surface of the pump. The surgical intracardiac blood pump has the advantages that titanium alloy contains simple components; the surgical intracardiac blood pump is high in strength; the titanium alloy with the components is subjected to acid pickling and passivating surface treatment working procedures, accordingly, optional problems of dark spots on surfaces and the like can be solved, and obtained surfaces are neat; titanium nitride ceramic material layers are coated on the surfaces of the impeller according to different types of somatic cells in contact with the impeller and different speeds of the impeller, and accordingly the material and blood compatibility can be improved.

Description

technical field [0001] The invention relates to a blood pump used in an operating heart, which belongs to implanted pumps and belongs to the technical field of medical instruments. Background technique [0002] Clinically, patients with heart failure usually need to be treated with artificial mechanical assistance devices. At present, the main cardiac assisting therapy device is a blood pump. The existing blood pumps at home and abroad are mainly implantable auxiliary blood pumps. The confirmed damage of blood pumps to blood components is mainly hemolysis and thrombosis. The former refers to the rupture of red blood cells, causing the hemoglobin in the cells to dissociate into the plasma. Middle; the latter refers to platelet aggregation after activation and precipitation on the blood contact surface. Both hemolysis and thrombus will cause the physiological disorder of the recipient, which is life-threatening in severe cases. Existing pump body and impeller materials have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/12A61M1/10
CPCA61L31/022A61L31/088A61L31/14A61L2400/18A61M2205/02A61M2205/0211A61M2205/0238A61M2207/00A61M60/00A61M60/148A61M60/205
Inventor 傅风荣
Owner 傅风荣
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