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Medical heart implantation pump body

A heart pump and pump body technology, which is applied in the field of medical devices, can solve problems such as difficult to meet the performance requirements of anti-hemolysis and anti-thrombosis, and achieve the effect of improving anti-hemolysis and anti-thrombosis performance with simple components

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

AI Technical Summary

Problems solved by technology

Existing pump body 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

[0016] A pump body of a medical heart pump, the pump body comprising: a cast titanium alloy pump body, a titanium nitride-based ceramic material layer on the outer surface of the pump body, and a titanium oxide-based ceramic material layer on the inner surface of the pump body,

[0017] It is characterized in that the chemical composition of the cast titanium alloy pump body is (weight): Fe: 11.7%, Mg: 6.8%, Zn: 5.9%, Co: 2.6%, Si: 0.78%, Y: 0.39%, Cu: 0.86% , Cd: 0.28﹪, Zr: 0.079﹪, Cr: 0.056﹪, V: 0.069﹪, B: 0.088﹪, the balance is Ti and unavoidable impurities;

[0018] 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 is 1816°C, and the pouring temperature is 1759°C; The body is heated, the temperature is raised to 800°C, the heating rate is 300°C / hour, and the temperature is kept for 3 hours, then the temperature is lowered...

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PUM

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Abstract

Provided is a medical heart implantation pump body. The pump body comprises a cast titanium alloy pump body, a titanium nitride type ceramic material layer on the outer surface of the pump body and a titanium oxide type ceramic material layer on the inner surface of the pump body. According to different types and speeds of the pump body making contact with human cells, the inner surface and the outer surface of the pump body are coated with the titanium oxide type ceramic material layer and the titanium nitride type ceramic material layer, and properties of hemolysis resistance, antithrombosis and the like of the material are improved.

Description

technical field [0001] The invention relates to a medical heart pump body, which belongs to implanted pumps and belongs to the technical field of medical devices. Background technique [0002] At present, the application of extracorporeal circulation equipment for cardiac surgery has become a routine method for the treatment of heart diseases. Different degrees of cardiac insufficiency may occur before and after surgery, and cardiac assist devices and other means are needed to replace the pumping function of the heart, maintain blood circulation throughout the body, and improve the function of the original heart. The blood pump is the core component of the ventricular assist device and provides power for the ventricular assist device. Currently commercialized ventricular assist device blood pumps mostly adopt the principle of balloon extrusion or centrifugal drive, and there are complications such as air embolism and hemolysis. Existing pump body materials have been diffic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/12A61L31/02A61L31/08C22C14/00C22C1/02C22F1/18C21D9/00C23G1/10C23C22/36C23C24/08C04B35/58C04B35/46
CPCA61L31/022A61L31/088A61L31/14A61L2400/00A61L2400/18A61L2420/00A61M2205/02A61M2205/0211A61M2205/0238A61M2207/00A61M60/00A61M60/148C04B35/46C04B35/58014C04B2235/3418C04B2235/3813C04B2235/3826C04B2235/3839C04B2235/3847C04B2235/3886C21D9/0068C22C1/02C22C14/00C22F1/18C23C22/36C23C24/082C23C2222/20C23G1/10
Inventor 焦雷
Owner 焦雷
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